当前位置: <1>
Accession number:20180404675575
Title:Stand-off laser Raman spectroscopy and its advancement in explosives detection
Authors:Liu, Sheng-Run (1, 2); Xue, Bin (1, 2); Li, Yi-Zhe (1, 2); Wang, Hui (3)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Science, Xi'an, Shaanxi; 710119, China; (2) College of Materials Science and Opto-Electronic Tech, University of Chinese Academy of Science, Beijing; 101408, China; (3) Science and Technology on Near-Surface Detection Laboratory, Wuxi; 214035, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10461
Part number:1 of 1
Issue title:AOPC 2017: Optical Spectroscopy and Imaging
Issue date:2017
Publication year:2017
Article number:1046116
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614031
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Spectroscopy and Imaging, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133395
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:The explosives detection has been a hot and difficult issue in the field of security？1/4it is particularly important to detect explosives quickly and reliably. There are many methods to detect explosives currently, stand-off Raman spectroscopy is one of the most promising and practical technologies, this technique can be used for non-contact and nondestructive detection, ensure the safety of attendants, at the same time the precision and speed of detection are also very high and be characterized by rapid response. This paper mainly gives an account of the fundamental principle of Raman spectroscopy, as well as recount major challenges of Standoff Laser Raman Spectroscopy applied in explosives detection and corresponding solutions. From the perspective of the system, this paper sums up related theories and techniques of the excitation laser and telescopic system etc. Ultimately, a brief analysis and summary of the development trend of this technology is given. COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
Number of references:19
Main heading:Explosives detection
Controlled terms:Explosives - Laser excitation - Laser spectroscopy - Raman spectroscopy
Uncontrolled terms:Advancement - Corresponding solutions - Development trends - Fundamental principles - Laser Raman spectroscopy - Nondestructive detection - Standoff - Telescopic systems
Classification code:741.3 Optical Devices and Systems - 801 Chemistry - 801.4 Physical Chemistry
DOI:10.1117/12.2285181
Funding details: Number: 6142414070114, Acronym: -, Sponsor: -;
Funding text:This work has been sponsored in part by Science and Technology on Near-Surface Detection Laboratory (No.6142414070114)
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<2>
Accession number:20171703602836
Title:Heterogeneous Face Recognition: A Common Encoding Feature Discriminant Approach
Authors:Gong, Dihong (1); Li, Zhifeng (1); Huang, Weilin (1); Li, Xuelong (2); Tao, Dacheng (3)
Author affiliation:(1) Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen; 518055, China; (2) State Key Laboratory of Transient Optics and Photonics, Center for OPTical IMagery Analysis and Learning (OPTIMAL), Xi'an Institute of Optics and Precision Mechanics, Xi'an; 710119, China; (3) School of Information Technologies, Faculty of Engineering and Information Technologies, University of Sydney, Darlington; NSW; 2008, Australia
Source title:IEEE Transactions on Image Processing
Abbreviated source title:IEEE Trans Image Process
Volume:26
Issue:5
Issue date:May 2017
Publication year:2017
Pages:2079-2089
Article number:7812744
Language:English
ISSN:10577149
CODEN:IIPRE4
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Heterogeneous face recognition is an important, yet challenging problem in face recognition community. It refers to matching a probe face image to a gallery of face images taken from alternate imaging modality. The major challenge of heterogeneous face recognition lies in the great discrepancies between different image modalities. Conventional face feature descriptors, e.g., local binary patterns, histogram of oriented gradients, and scale-invariant feature transform, are mostly designed in a handcrafted way and thus generally fail to extract the common discriminant information from the heterogeneous face images. In this paper, we propose a new feature descriptor called common encoding model for heterogeneous face recognition, which is able to capture common discriminant information, such that the large modality gap can be significantly reduced at the feature extraction stage. Specifically, we turn a face image into an encoded one with the encoding model learned from the training data, where the difference of the encoded heterogeneous face images of the same person can be minimized. Based on the encoded face images, we further develop a discriminant matching method to infer the hidden identity information of the cross-modality face images for enhanced recognition performance. The effectiveness of the proposed approach is demonstrated (on several public-domain face datasets) in two typical heterogeneous face recognition scenarios: matching NIR faces to VIS faces and matching sketches to photographs. 1992-2012 IEEE.
Number of references:41
Main heading:Face recognition
Controlled terms:Encoding (symbols) - Image coding - Image enhancement - Signal encoding
Uncontrolled terms:Discriminant informations - Feature descriptors - Feature extraction stages - Heterogeneous face recognition - Histogram of oriented gradients - Identity information - Local binary patterns - Scale invariant feature transforms
Classification code:716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing
DOI:10.1109/TIP.2017.2651380
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<3>
Accession number:20170903385629
Title:Meta-nanocavity model for dynamic super-resolution fluorescent imaging based on the plasmonic structure illumination microscopy method
Authors:Cao, Shun (1, 2); Wang, Taisheng (1); Sun, Qiang (1); Hu, Bingliang (1); Yu, Weixing (3)
Author affiliation:(1) State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, No.3888, Dongnanhu Road, Changchun; Jilin, China; (2) University of the Chinese Academy of Sciences, Beijing; 10039, China; (3) Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No.17, Xinxi Road, Xian; 710119, China
Corresponding author:Yu, Weixing(yuwx@opt.ac.cn)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:4
Issue date:February 20, 2017
Publication year:2017
Pages:3863-3874
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:Biological research requires dynamic and wide-field optical microscopy with resolution down to nanometer to study the biological process in a sub-cell or single molecular level. To address this issue, we propose a dynamic wide-field optical nanoimaging method based on a meta-nanocavity platform (MNCP) model which can be incorporated in micro/nano-fluidic systems so that the samples to be observed can be confined in a nano-scale space for the ease of imaging. It is found that this platform can support standing wave surface plasmons (SW-SPs) interference pattern with a period of 105 nm for a 532 nm incident wavelength. Furthermore, the potential application of the NCP for wide-field super-resolution imaging was discussed and the simulation results show that an imaging resolution of sub-80 nm can be achieved. 2017 Optical Society of America.
Number of references:47
Main heading:Fluorescence imaging
Controlled terms:Nanotechnology - Optical resolving power - Plasmonics - Surface plasmons
Uncontrolled terms:Biological process - Biological research - Fluorescent imaging - Imaging resolutions - Incident wavelength - Interference patterns - Super resolution - Super resolution imaging
Classification code:741.1 Light/Optics - 761 Nanotechnology
Numerical data indexing:Size 1.05e-07m, Size 5.32e-07m
DOI:10.1364/OE.25.003863
Funding details: Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61475156, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61361166004, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 20140519002JH, Acronym: -, Sponsor: Department of Finance of Jilin Province;
Funding text:National Science Foundation of China (NSFC) (61361166004, 61475156) and Technology Department of Jilin Province (20140519002JH).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<4>
Accession number:20172303738779
Title:Wavelength-switchable passively mode-locked fiber laser with mechanically exfoliated molybdenum ditelluride on side-polished fiber
Authors:Wang, Guomei (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Wang, Guomei(wangguomei@opt.cn)
Source title:Optics and Laser Technology
Abbreviated source title:Opt Laser Technol
Volume:96
Issue date:November 1, 2017
Publication year:2017
Pages:307-312
Language:English
ISSN:00303992
CODEN:OLTCAS
Document type:Journal article (JA)
Publisher:Elsevier Ltd
Abstract:We experimentally investigated the nonlinear saturable absorption characteristics of molybdenum ditelluride (MoTe
Number of references:59
Main heading:Mode-locked fiber lasers
Controlled terms:Bandwidth - Fiber lasers - Fibers - Molybdenum compounds - Passive mode locking - Polarization - Polydimethylsiloxane - Saturable absorbers - Semiconductor quantum wells - Silicones - Tellurium compounds - Thin films
Uncontrolled terms:Erbium doped fiber laser - Mechanical exfoliation - Molybdenum ditelluride - Passively mode-locked fiber lasers - Polarization controllers - Polydimethylsiloxane PDMS - Saturable absorption - Time-bandwidth products
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 716.1 Information Theory and Signal Processing - 744.1 Lasers, General - 744.4 Solid State Lasers - 815.1.1 Organic Polymers
DOI:10.1016/j.optlastec.2017.05.030
Funding details: Number: 2015KCT-06, Acronym: -, Sponsor: -;Number: 61525505, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under Grant Agreements 61525505 and by the Key Scientific and Technological Innovation Team Project in Shaanxi Province (2015KCT-06).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<5>
Accession number:20174604395652
Title:Imaging through a scattering medium based on spatial transmission matrix
Authors:Zhuang, Bin (1, 2); Xu, Chengfang (1, 2); Geng, Yi (1, 2); Zhao, Guangzhi (1, 2); Zhou, Libin (3); He, Zhengquan (1); Ren, Liyong (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, China; (2) University of Chinese, Academy of Sciences, China; (3) Shaanxi University of Science and Technology, China
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:10416
Part number:1 of 1
Issue title:Optical Coherence Imaging Techniques and Imaging in Scattering Media II
Issue date:2017
Publication year:2017
Article number:104160D
Language:English
ISSN:16057422
ISBN-13:9781510612907
Document type:Conference article (CA)
Conference name:Optical Coherence Imaging Techniques and Imaging in Scattering Media II 2017
Conference date:June 25, 2017 - June 29, 2017
Conference location:Munich, Germany
Conference code:131573
Sponsor:The Optical Society; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:The inhomogeneity of scattering medium distorts the propagation of the waves, which has been detrimental to the performance of optical imaging. The operating time of the traditional solutions will be very long as the scanning is necessary during the imaging. A recovery solution based on spatial optical transmission matrix has been proposed. With the acquiring of the spatial optical transmission matrix, the incident object wave will be recovered directly from the distorted transmitted wave, in this way, only a single shot is needed during the imaging. The effectiveness of this method has been proved by the simulation and experiment, the principle is simpler and the algorithm is more efficient, which are beneficial to the imaging through the scattering medium. 2017 SPIE.
Number of references:11
Main heading:Coherent scattering
Controlled terms:Light transmission
Uncontrolled terms:Inhomogeneities - Object waves - Operating time - Optical imaging - Optical transmission matrix - Scattering medium - Spatial transmission - Transmitted waves
Classification code:711 Electromagnetic Waves - 741.1 Light/Optics
DOI:10.1117/12.2285014
Funding details: Number: 61535015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275086, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China (Grants No. 61535015 and 61275086).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<6>
Accession number:20171403544904
Title:Stochastic resonance based on modulation instability in spatiotemporal chaos
Authors:Han, Jing (1, 2); Liu, Hongjun (1, 3); Huang, Nan (1); Wang, Zhaolu (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100084, China; (3) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China
Corresponding author:Liu, Hongjun(liuhongjun@opt.ac.cn)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:7
Issue date:April 3, 2017
Publication year:2017
Pages:8306-8314
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:A novel dynamic of stochastic resonance in spatiotemporal chaos is presented, which is based on modulation instability of perturbed partially coherent wave. The noise immunity of chaos can be reinforced through this effect and used to restore the coherent signal information buried in chaotic perturbation. A theoretical model with fluctuations term is derived from the complex Ginzburg-Landau equation via Wigner transform. It shows that through weakening the nonlinear threshold and triggering energy redistribution, the coherent component dominates the instability damped by incoherent component. The spatiotemporal output showing the properties of stochastic resonance may provide a potential application of signal encryption and restoration. 2017 Optical Society of America.
Number of references:28
Main heading:Stochastic systems
Controlled terms:Circuit resonance - Cryptography - Magnetic resonance - Modulation - Restoration - Signal reconstruction
Uncontrolled terms:Coherent components - Complex Ginzburg-Landau equation - Energy re distributions - Modulation instabilities - Non-linear thresholds - Spatiotemporal chaos - Stochastic resonances - Theoretical modeling
Classification code:701.2 Magnetism: Basic Concepts and Phenomena - 703.1 Electric Networks - 716.1 Information Theory and Signal Processing - 961 Systems Science
DOI:10.1364/OE.25.008306
Funding details: Number: 61275134, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: QNLM2016ORP0111, Acronym: QNLM, Sponsor: Qingdao National Laboratory for Marine Science and Technology;
Funding text:National Natural Science Foundation of China (NSFC) 61275134; Qingdao National Laboratory for Marine Science and Technology (QNLM2016ORP0111).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<7>
Accession number:20171603579362
Title:Two-dimensional simulation of argon dielectric barrier discharge excited by a Gaussian voltage at atmospheric pressure
Authors:Xu, Yonggang (1, 2); Wang, Jing (2); Li, Jing (2, 3); Lei, Bingying (2); Tang, Jie (2); Wang, Yishan (2); Li, Yongfang (1); Zhao, Wei (2); Duan, Yixiang (2, 4)
Author affiliation:(1) School of Physics and Information Technology, Shaanxi Normal University, Xi'an; 710119, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (3) Faculty of Mathematics and Physics, Huaiyin Institute of Technology, Huaian; 223003, China; (4) Research Center of Analytical Instrumentation, College of Life Sciences, Sichuan University, Chengdu; 610064, China
Corresponding author:Tang, Jie(tangjie1979@opt.ac.cn)
Source title:Physics of Plasmas
Abbreviated source title:Phys. Plasmas
Volume:24
Issue:4
Issue date:April 1, 2017
Publication year:2017
Article number:043507
Language:English
ISSN:1070664X
E-ISSN:10897674
CODEN:PHPAEN
Document type:Journal article (JA)
Publisher:American Institute of Physics Inc.
Abstract:A two-dimensional self-consistent fluid model was employed to investigate the spatiotemporal characteristics of discharges in atmospheric pressure argon (Ar) dielectric barrier discharge driven by a Gaussian voltage. The simulation results show that a discharge with multiple current pulses occurs each half-cycle in the gas gap. A transition from the Townsend mode to the glow mode is observed with the increasing applied voltage each half-cycle at a lower driving frequency (7.5 kHz). It is also found that the glow mode survives all the discharge phases at a higher driving frequency (12.5 kHz and 40 kHz). The change in the discharge mode with the driving frequency mainly lies in the fact that a lot of charged particles created in the discharge gap have no enough time to drift and diffuse around, and then these particles are assembled in the discharge space at higher frequency. Additionally, the spatial distributions of the electron density indicate that a center-advantage discharge is ignited at the driving frequencies of interest, resulting in the radial non-uniformity of discharge because of the edge effects. However, this overall non-uniformity is weakened with the driving frequency increased to 40 kHz, at which concentric ring patterns are observed. These distinct behaviors are mainly attributed to the fact that many charged particles generated are trapped in the gas gap and then accumulated to make the extension along the radial direction due to the charged particles transport and diffusion, and that the effective overlapping of a large number of avalanches induced by the increased “seed” electron density with the driving frequency. Meanwhile, the surface charged particles accumulated on the dielectric barriers are also shown to play a role in the formation of the discharge structure. 2017 Author(s).
Number of references:58
Main heading:Dielectric materials
Controlled terms:Argon - Atmospheric pressure - Carrier concentration - Charged particles - Dielectric devices - Electron density measurement - Flow control - Glow discharges
Uncontrolled terms:Charged particles transport - Concentric ring patterns - Dielectric barrier discharges - Discharge structures - Driving frequencies - Higher frequencies - Spatiotemporal characteristics - Two-dimensional simulations
Classification code:443.1 Atmospheric Properties - 631.1 Fluid Flow, General - 701.1 Electricity: Basic Concepts and Phenomena - 708.1 Dielectric Materials - 804 Chemical Products Generally
Numerical data indexing:Frequency 1.25e+04Hz, Frequency 4.00e+04Hz, Frequency 7.50e+03Hz
DOI:10.1063/1.4979898
Funding details: Number: 2011YQ030113, Acronym: -, Sponsor: -;Number: XAB2015A08, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 2015JM1019, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;
Funding text:This work was supported by the National Major Scientific Instruments and Equipment Development Special Funds (Grant No. 2011YQ030113), the Natural Science Foundation of Shaanxi Province, China (Grant No. 2015JM1019), and the CAS ?Light of West China? Program (Grant No. XAB2015A08).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<8>
Accession number:20171303489950
Title:Nanosecond passively Q-switched Nd:YVO
Authors:Wang, Xi (1); Li, Lu (1); Wang, Yonggang (1, 2); Zhang, Ling (3); Wen, Qiao (4); Yang, Guowen (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) School of Physics and Information Technology, Shaanxi Normal University, Xi'an; 710119, China; (3) Laboratory of All-solid-state Light Sources, Institute of Semiconductors, Chinese Academy of Sciences, Beijing; 100083, China; (4) Key Laboratory of Optoelectronic Devices and Systems, Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen; 518060, China
Source title:Laser Physics
Abbreviated source title:Laser Phys.
Volume:27
Issue:4
Issue date:April 2017
Publication year:2017
Article number:045802
Language:English
ISSN:1054660X
E-ISSN:15556611
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:We report on a nanosecond pulse generation in a diode end-pumped passively Q-switched Nd:YVO
Number of references:46
Main heading:Pulsed lasers
Controlled terms:Neodymium compounds - Optical materials - Optical pumping - Pulse repetition rate - Q switched lasers - Q switching - Saturable absorbers - Single crystals - Solid state lasers - Sulfur compounds - Transition metals - Tungsten compounds
Uncontrolled terms:Average output power - Long term stability - Nanosecond pulse generation - Non-linear optical material - Optical transparency - Passively Q-switched - Slope efficiencies - Transition metal dichalcogenides
Classification code:531 Metallurgy and Metallography - 741.3 Optical Devices and Systems - 744 Lasers - 933.1 Crystalline Solids
Numerical data indexing:Frequency 3.34e+05Hz, Percentage 7.80e+00%, Power 7.20e-01W, Size 1.06e-06m, Time 7.88e-07s
DOI:10.1088/1555-6611/aa5f90
Funding details: Number: SKLST201403, Acronym: CAAS, Sponsor: Chinese Academy of Agricultural Sciences;Number: 61378024, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is supported by National Natural Science Foundation of China under Grants 61378024 and Open Research Fund of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Science under grants SKLST201403.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<9>
Accession number:20173104014253
Title:Design and Implementation of the Intelligent Streak Camera Control System Based on Internet of Things
Authors:Lü, Bin (1, 2); Pei, Cheng-Quan (3); Tian, Jin-Shou (1); Wen, Wen-Long (1); Wang, Jun-Feng (1)
Author affiliation:(1) Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an; 710049, China
Corresponding author:Tian, Jin-Shou(tianjs@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:5
Issue date:May 1, 2017
Publication year:2017
Article number:0522002
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:A distributed intelligent control system was implemented to make streak cameras more protable and intelligent, which achieved the monitoring of working parameters, precise control of the electrode voltage and scanning patterns, additionally, image acquisition and processing. Based on the structure of Internet of things and client-server model, the system realized multimachine collaboration capabilities about wired and wireless devices extension and mobile monitoring. Furthermore, an adjustable self-protection high voltage ringing choke converter was designed for the system. The power supply realized the miniaturization by the simply self-excited topological structure, and its linear adjustment accuracy can reach 1%.The picosecond visible light streak camera with the intelligent control system was calibrated by the Nd:YLF pulse laser (Wavelength of 526.5 nmand pulse width of 8 ps).A dynamic spatial resolution of 20 lp/mm (CTF=14%), a dynamic range of 234:1 and a temporal resolution of 14 ps were reached. 2017, Science Press. All right reserved.
Number of references:12
Main heading:Distributed parameter control systems
Controlled terms:Intelligent control - Internet of things - Overcurrent protection - Streak cameras - YLF lasers
Uncontrolled terms:Adjustment accuracies - Camera control systems - Client-server models - Collaboration capabilities - Design and implementations - Distributed intelligent control - Ringing choke converters - Topological structure
Classification code:723 Computer Software, Data Handling and Applications - 731.1 Control Systems - 742.2 Photographic Equipment - 744.4.1 Semiconductor Lasers
Numerical data indexing:Percentage 1.00e+00%, Time 1.40e-11s, Time 8.00e-12s
DOI:10.3788/gzxb20174605.0522002
Funding details: Number: 11274377, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The National Natural Science Foundation of China (No.11274377).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<10>
Accession number:20175104547948
Title:Medium and High Voltage IGBT Module Using Nanosilver Paste Sintering Technology and Its Performance Characterization
Authors:Mei, Yunhui (1, 2); Feng, Jingjing (1); Wang, Xiaomin (1); Lu, Guoquan (1); Zhang, Peng (3); Lin, Zhongkang (3)
Author affiliation:(1) School of Materials Science and Engineering, Tianjin University, Tianjin; 300350, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) Global Energy Internet Research Institute, Beijing; 102200, China
Corresponding author:Mei, Yunhui(yunhui@tju.edu.cn)
Source title:Gaodianya Jishu/High Voltage Engineering
Abbreviated source title:Gaodianya Jishu
Volume:43
Issue:10
Issue date:October 31, 2017
Publication year:2017
Pages:3307-3312
Language:Chinese
ISSN:10036520
CODEN:GAJIE5
Document type:Journal article (JA)
Publisher:Science Press
Abstract:Interface contact through pressure is the way for press-pack insulated gate bipolar transistor (IGBT) modules in smart grid to conduct heat dissipation. However, the junction temperature of the press-pack IGBT modules could be too high, leading to degradation of electrical properties and even impairing the reliability, because of poor interfacial contact and poor heat dissipation. To overcome the above problems, we developed a sinter-pack IGBT module using nanosilver paste by forming electrical contact with chip to replace pressure contact in press-pack module. Then, the sinter-pack module was characterized by die-shear strength, thermal resistance, and static characteristics to compare with press-pack IGBT module. According to the experimental results, the thermal resistance of sinter-pack IGBT module decreased by 15.8%. The static electricity test results are consistent with two types of modules, further proving the feasibility of sinter-pack IGBT modules. The shear strength is around 20 MPa, indicating a good bonding quality of large area of die (13.5 mm×13.5 mm) with nanosiver paste. It is concluded that nano silver paste employed in press-pack IGBT modules can not only significantly decrease the thermal resistance of press-pack IGBT modules, but also get an excellent static electricity. Thus, a sinter-pack module is expected to be operated in smart grid because of the higher conversion efficiency, power density, and reliability during operating at high voltage and current applications. 2017, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
Number of references:25
Main heading:Insulated gate bipolar transistors (IGBT)
Controlled terms:Electric power transmission networks - Heat resistance - Presses (machine tools) - Sintering - Smart power grids - Static electricity - Thermal management (electronics)
Uncontrolled terms:Igbt-modules - Interfacial contact - Junction temperatures - Nano-silver pastes - Performance characterization - Press-pack insulated gate bipolar transistors (IGBT) - Shear tests - Static characteristic
Classification code:603.1 Machine Tools, General - 701.1 Electricity: Basic Concepts and Phenomena - 706.1 Electric Power Systems - 706.1.1 Electric Power Transmission - 714.2 Semiconductor Devices and Integrated Circuits
Numerical data indexing:Percentage 1.58e+01%, Pressure 2.00e+07Pa
DOI:10.13336/j.1003-6520.hve.20170925021
Funding details: Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:基金资助项目：国家高技术研究发展计划(863 计划) (2015AA034501)；国家自然科学基金(61334010)；天津市科技支撑计划(13ZCZDGX01106)；瞬态 光学与光子技术国家重点实验室开放课题(SKLST201607)。 Project supported by National High-tech Research and Development Program of China (863 Program) (2015AA034501), National Natural Science Foundation of China(61334010), Key Technologies Research and Development Program of Tianjin Municipal(13ZCZDGX01106), Opening Project of Chinese State Key Laboratory of Transient Optics and Photonics (SKLST201607).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<11>
Accession number:20172603860667
Title:Roles of palladium particles in enhancing the electrochemical migration resistance of sintered nano-silver paste as a bonding material
Authors:Wang, Di (1); Mei, Yun-Hui (1, 2); Xie, Haining (3); Zhang, Kun (3); Siow, Kim S. (4); Li, Xin (1); Lu, Guo-Quan (5)
Author affiliation:(1) Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin; 300072, China; (2) State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) State Key Lab of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute, Beijing; 102209, China; (4) Institute of Micro-Engineering and Nanoelectronics, Universiti Kebangsaan Malaysia, UKM, Bangi; Selangor D.E.; 43600, Malaysia; (5) Department of Materials Science and Engineering, Virginia Tech, Blacksburg; 24061, United States
Corresponding author:Mei, Yun-Hui(yunhui@tju.edu.cn)
Source title:Materials Letters
Abbreviated source title:Mater Lett
Volume:206
Issue date:November 1, 2017
Publication year:2017
Pages:1-4
Language:English
ISSN:0167577X
E-ISSN:18734979
CODEN:MLETDJ
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:The inhibition effect and mechanism of adding palladium particles to nano-silver paste on the migration of silver in high temperature is reported. The electrochemical migration (ECM) tests showed that silver migration was significantly delayed by the addition of palladium. The roles of different compositions, e.g., PdO, in enhancing the ECM resistance of silver were studied experimentally. We found Ag-Pd alloy < PdO < PdO (the oxidation process of palladium). The oxidation of palladium to palladium (II) oxides (PdO) suppressed the silver oxides to delay the onset of silver dendrites formation resulting in longer failure lifetime than the pure PdO, Ag-Pd alloy or a simple combination of the two. 2017 Elsevier B.V.
Number of references:12
Main heading:Palladium compounds
Controlled terms:Binary alloys - Electronics packaging - Nanoparticles - Palladium alloys - Silver alloys - Silver oxides - Sintering
Uncontrolled terms:Bonding materials - Electrochemical migration - Electronic Packaging - Inhibition effect - Nano-silver pastes - Oxidation process - Palladium particles - Silver migration
Classification code:547.1 Precious Metals - 761 Nanotechnology - 804 Chemical Products Generally - 933 Solid State Physics
DOI:10.1016/j.matlet.2017.06.066
Funding details: Number: 2015AA034501, Acronym: -, Sponsor: -;Number: 17JCYBJC19200, Acronym: -, Sponsor: -;Number: 61334010, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by National High Technology Research and Development Program of China (under grant 2015AA034501); the Natural Science Foundation of China (under grant 61334010); and the Science and Technology Program of Tianjin, China (under grant 17JCYBJC19200).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<12>
Accession number:20170803363283
Title:Femtowatt incoherent image conversion from mid-infrared light to near-infrared light
Authors:Huang, Nan (1); Liu, Hongjun (1, 2); Wang, Zhaolu (1); Han, Jing (1); Zhang, Shuan (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics Technology, Xi'An Institute of Optics and Precision Mechanics, Xi'an; 710119, China; (2) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi; 030006, China
Source title:Laser Physics
Abbreviated source title:Laser Phys.
Volume:27
Issue:3
Issue date:March 2017
Publication year:2017
Article number:035401
Language:English
ISSN:1054660X
E-ISSN:15556611
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:We report on the experimental conversion imaging of an incoherent continuous-wave dim source from mid-infrared light to near-infrared light with a lowest input power of 31 femtowatt (fW). Incoherent mid-infrared images of light emission from a heat lamp bulb with an adjustable power supply at window wavelengths ranging from 2.9 μm to 3.5 μm are used for upconversion. The sum-frequency generation is realized in a laser cavity with the resonant wavelength of 1064 nm pumped by an LD at 806 nm built around a periodically poled lithium niobate (PPLN) crystal. The converted infrared image in the wavelength range ～785 nm with a resolution of about 120 × 70 is low-noise detected using a silicon-based camera. By optimizing the system parameters, the upconversion quantum efficiency is predicted to be 28% for correctly polarized, on-axis and phase-matching light. 2017 Astro Ltd.
Number of references:20
Main heading:Infrared devices
Controlled terms:Infrared imaging - Niobium compounds - Phase matching - Pumping (laser)
Uncontrolled terms:Experimental conversion - incoherent - Midinfrared - Near infrared light - Periodically poled lithium niobate crystals - Resonant wavelengths - Sum frequency generation - Up-conversion
Classification code:713 Electronic Circuits - 744.1 Lasers, General - 746 Imaging Techniques
Numerical data indexing:Percentage 2.80e+01%, Size 1.06e-06m, Size 2.90e-06m to 3.50e-06m, Size 8.06e-07m
DOI:10.1088/1555-6611/aa57db
Funding details: Number: 11604377, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275134, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under Grant No 61275134 and 11604377.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<13>
Accession number:20163002643546
Title:Graph Regularized Non-Negative Low-Rank Matrix Factorization for Image Clustering
Authors:Li, Xuelong (1); Cui, Guosheng (1, 2); Dong, Yongsheng (1, 3)
Author affiliation:(1) Center for Optical Imagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Chinese Academy of Sciences, Beijing; 100049, China; (3) Information Engineering College, Henan University of Science and Technology, Luoyang; 471023, China
Corresponding author:Dong, Yongsheng(dongyongsheng98@163.com)
Source title:IEEE Transactions on Cybernetics
Abbreviated source title:IEEE Trans. Cybern.
Volume:47
Issue:11
Issue date:November 2017
Publication year:2017
Pages:3840-3853
Article number:7517387
Language:English
ISSN:21682267
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Non-negative matrix factorization (NMF) has been one of the most popular methods for feature learning in the field of machine learning and computer vision. Most existing works directly apply NMF on high-dimensional image datasets for computing the effective representation of the raw images. However, in fact, the common essential information of a given class of images is hidden in their low rank parts. For obtaining an effective low-rank data representation, we in this paper propose a non-negative low-rank matrix factorization (NLMF) method for image clustering. For the purpose of improving its robustness for the data in a manifold structure, we further propose a graph regularized NLMF by incorporating the manifold structure information into our proposed objective function. Finally, we develop an efficient alternating iterative algorithm to learn the low-dimensional representation of low-rank parts of images for clustering. Alternatively, we also incorporate robust principal component analysis into our proposed scheme. Experimental results on four image datasets reveal that our proposed methods outperform four representative methods. 2013 IEEE.
Number of references:70
Main heading:Matrix algebra
Controlled terms:Factorization - Iterative methods - Learning systems - Principal component analysis
Uncontrolled terms:Data representations - graph regularization - Image clustering - Low-rank recoveries - Nonnegative matrix factorization
Classification code:921 Mathematics - 922.2 Mathematical Statistics
DOI:10.1109/TCYB.2016.2585355
Funding details: Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61125106, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61301230, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61125106 and Grant 61301230, in part by the International Science and Technology Cooperation Project of Henan Province under Grant 162102410021, in part by the China Post-Doctoral Science Foundation under Grant 2014M550517.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<14>
Accession number:20180404671107
Title:Design of flame detection video camera system based on DSP
Authors:Liu, Wen-Long (1); Li, Yun (1); Liu, Yong-Zheng (1); Kong, Liang (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China
Corresponding author:Liu, Wen-Long(laoshugenlwl@126.com)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104621D
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:In order to alarm the fire and analyze the material burned, the high efficiency imaging system is designed to monitor the fire. The system selects the high performance CMOS image sensor, utilizing real-Time DSP with higher computing power, it is designed based on DSP C6748 by IIC serial port flame detectors video camera's registers, and the generated image data sent to DSP by VPIF interface, the image algorithm is transplanted to DSP, at last, the system will alarm the fire and output spectral characteristics of the burning material via Ethernet interface. This system completes algorithm hardware realization, and the algorithm can detect image in real-Time and extract the effect of spectral characteristics of burning material, so that the algorithm processing can speed up from minute level on the PC to the sub-second level. 2017 SPIE.
Number of references:4
Main heading:Video cameras
Controlled terms:CMOS integrated circuits - Digital signal processing - Interfaces (materials)
Uncontrolled terms:Burning materials - Computing power - Ethernet interface - Flash - Hardware realization - High-performance CMOS - Image algorithms - Spectral characteristics
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 716.4 Television Systems and Equipment - 951 Materials Science
DOI:10.1117/12.2283467
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<15>
Accession number:20181705046999
Title:Research on implementation of an improved finite state machine model in satellite simulated system
Authors:Feng, Xu-Bin (1, 2); Su, Xiu-Qin (1, 2); Wang, Chen (1); Han, Jun-Feng (1); Yang, Yong-Qing (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10605
Part number:1 of 1
Issue title:LIDAR Imaging Detection and Target Recognition 2017
Issue date:2017
Publication year:2017
Article number:106050Y
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510617063
Document type:Conference article (CA)
Conference name:LIDAR Imaging Detection and Target Recognition 2017
Conference date:July 23, 2017 - July 25, 2017
Conference location:Changchun, China
Conference code:133763
Sponsor:Chinese Academy of Engineering; Chinese Society for Optical Engineering (CSOE); National Natural Science Foundation of China
Publisher:SPIE
Abstract:Satellite simulated system is a very important sub system of satellite payload ground comprehensive testing system which tests the satellite payload's order and telemetering before delivering the payload to satellite. For all kinds of satellite simulated system, a new implementation which used an improved Finite State Machine (FSM) model can make the whole system modules clear, reduce the coupling between modules, improve the modules' reusability, enhance productivity, and make the research and development of the whole system easier. The engineering applications' experimental results show that the implementation of an improved FSM model can make the satellite simulated system stable and reliable. 2017 SPIE.
Number of references:8
Main heading:Satellites
Controlled terms:Couplings - Finite automata - Optical radar - Reusability
Uncontrolled terms:Comprehensive testing - Engineering applications - Finite state machine model - Payload - Research and development - Satellite payloads - Simulated system - System modules
Classification code:655.2 Satellites - 716.2 Radar Systems and Equipment - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory
DOI:10.1117/12.2286412
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<16>
Accession number:20175004516606
Title:Generation of Circular Optical Vortex Array
Authors:Ma, Haixiang (1); Li, Xinzhong (1, 2); Tai, Yuping (3); Li, Hehe (1); Wang, Jingge (1); Tang, Miaomiao (1); Tang, Jie (2); Wang, Yishan (2); Nie, Zhaogang (4)
Author affiliation:(1) School of Physics and Engineering, Henan University of Science and Technology, Luoyang; 471023, China; (2) State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) School of Chemical Engineering and Pharmaceutics, Henan University of Science and Technology, Luoyang; 471023, China; (4) School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou; 510006, China
Corresponding author:Li, Xinzhong(xzli@haust.edu.cn)
Source title:Annalen der Physik
Abbreviated source title:Ann Phys Leipzig
Volume:529
Issue:12
Issue date:December 2017
Publication year:2017
Article number:1700285
Language:English
ISSN:00033804
E-ISSN:15213889
CODEN:ANPYA2
Document type:Journal article (JA)
Publisher:Wiley-VCH Verlag
Abstract:We report on a novel optical vortex array named circular optical vortex array, which is generated by the superposition of two concentric perfect optical vortices. The circular optical vortex array has a constant topological charge of +1 or ？1, the number and sign of which are determined by the topological charges of the two perfect optical vortices. Moreover, the radius of the circular optical vortex array is easily adjusted by using the cone angle of an axicon. Furthermore, the circular optical vortex array and multiple circular optical vortex array can be rotated by changing the initial phase difference of the perfect optical vortices on demand. This work demonstrates a complex structured optical field, which is of significance for applications such as optical tweezers, micro-particle manipulation, and optical imaging. 2017 by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Number of references:42
Main heading:Vortex flow
Controlled terms:Optical tweezers - Topology
Uncontrolled terms:Cone angle - Micro particles - Optical field - Optical imaging - Optical manipulation - Optical vortices - Phase difference - Topological charges
Classification code:631.1 Fluid Flow, General - 744.9 Laser Applications - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
DOI:10.1002/andp.201700285
Funding details: Number: 61775052, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61205086, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11704098, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China(NSFC) (nos. 61775052, 61205086, 11704098).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<17>
Accession number:20180704799521
Title:A sparse dictionary learning method for hyperspectral anomaly detection with capped norm
Authors:Ma, Dandan (1); Yuan, Yuan (1); Wang, Qi (2)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics of CAS, China; (2) School of Computer Science, Center for OPTical IMagery Analysis and Learning, Northwestern Polytechnical University, China
Corresponding author:Wang, Qi(author:crabwq@nwpu.edu.cn)
Source title:International Geoscience and Remote Sensing Symposium (IGARSS)
Abbreviated source title:Dig Int Geosci Remote Sens Symp (IGARSS)
Volume:2017-July
Part number:1 of 1
Issue title:2017 IEEE International Geoscience and Remote Sensing Symposium: International Cooperation for Global Awareness, IGARSS 2017 - Proceedings
Issue date:December 1, 2017
Publication year:2017
Pages:648-651
Article number:8127037
Language:English
CODEN:IGRSE3
ISBN-13:9781509049516
Document type:Conference article (CA)
Conference name:37th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2017
Conference date:July 23, 2017 - July 28, 2017
Conference location:Fort Worth, TX, United states
Conference code:133497
Sponsor:IEEE Geoscience and Remote Sensing Society (GRSS)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Hyperspectral anomaly detection is playing an important role in remote sensing field. Most conventional detectors based on the Reed-Xiaoli (RX) method assume the background signature obeys a Gaussian distribution. However, it is definitely hard to be satisfied in practice. Moreover, background statistics is susceptible to contamination of anomalies in the processing windows, which may lead to many false alarms and sensitiveness to the size of windows. To solve these problems, a novel sparse dictionary learning hyperspectral anomaly detection method with capped norm constraint is proposed. Contributions are claimed in threefold: 1) requiring no assumptions on the background distribution makes the method more adaptive to different scenes; 2) benefiting from the capped norm our method has a stronger distinctiveness to anomalies; and 3) it also has better adaptability to detect different sizes of anomalies without using the sliding dual window. The extensive experimental results demonstrate the desirable performance of our method. 2017 IEEE.
Number of references:12
DOI:10.1109/IGARSS.2017.8127037
Funding details: Number: 2013CB336500, Acronym: -, Sponsor: -;Number: 60632018, Acronym: -, Sponsor: -;Number: 61232010, Acronym: -, Sponsor: -;Number: 61379094, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Basic Research Program of China (Youth 973 Program) under Grant 2013CB336500, in part by the State Key Program of National Natural Science of China under Grant 60632018 and Grant 61232010, and in part by the National Natural Science Foundation of China under Grant 61379094.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<18>
Accession number:20174304306091
Title:Midinfrared wavelength conversion in hydrogenated amorphous silicon waveguides
Authors:Wang, Jiang (1, 2); Wang, Zhaolu (1); Huang, Nan (1); Han, Jing (1); Li, Yongfang (2); Liu, Hongjun (1)
Author affiliation:(1) Chinese Academy of Science, Xi'an Institute of Optics and Precision Mechanics, State Key Laboratory of Transient Optics and Photonics, Xi'an, China; (2) Shaanxi Normal University, School of Physics and Information Technology, Xi'an, China
Corresponding author:Liu, Hongjun(liuhongjun@opt.ac.cn)
Source title:Optical Engineering
Abbreviated source title:Opt Eng
Volume:56
Issue:10
Issue date:October 1, 2017
Publication year:2017
Article number:107103
Language:English
ISSN:00913286
E-ISSN:15602303
CODEN:OPEGAR
Document type:Journal article (JA)
Publisher:SPIE
Abstract:Midinfrared (MIR) wavelength conversion based on degenerate four-wave mixing is theoretically investigated in hydrogenated amorphous silicon (a-Si:H) waveguides. The broadband phase mismatch is achieved in the normal group-velocity dispersion regime. The conversion bandwidth is extended to 900 nm, and conversion efficiency of up to -14 dB with a pump power of 70 mW in a 2-mm long a-Si:H rib waveguides is obtained. This low-power on-chip wavelength converter will have potential for application in a wide range of MIR nonlinear optic devices. 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).
Number of references:33
Main heading:Amorphous silicon
Controlled terms:Four wave mixing - Group velocity dispersion - Hydrogenation - Nonlinear optics - Waveguides
Uncontrolled terms:Degenerate four wave mixing - Hydrogenated amorphous silicon (a-Si:H) - Mid-infrared wavelengths - Midinfrared - Phase mismatch - Pump power - Rib waveguides - Wavelength converter
Classification code:549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 714.3 Waveguides - 741.1.1 Nonlinear Optics - 802.2 Chemical Reactions
Numerical data indexing:Decibel -1.40e+01dB, Power 7.00e-02W, Size 2.00e-03m, Size 9.00e-07m
DOI:10.1117/1.OE.56.10.107103
Funding details: Number: XAB2015B27, Acronym: -, Sponsor: -;Number: 2016JQ6036, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61505247, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11604377, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275134, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: QNLM2016ORP0111, Acronym: QUST, Sponsor: Qingdao University of Science and Technology;
Funding text:This work was jointly supported by the National Natural Science Foundation of China under Grant Nos. (61505247, 11604377, and 61275134), the Qingdao National Laboratory for Marine Science and Technology (No. QNLM2016ORP0111), the CAS "Light of West China" Program (No. XAB2015B27), and the Natural Science Basic Research plan in Shaanxi Province of China (No. 2016JQ6036).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<19>
Accession number:20173804169245
Title:Research on video scene mapping of fixed viewing angle
Authors:Wang, Yihao (1); Liu, Jiahang (1); Shi, Liu (1)
Author affiliation:(1) Remote Sensing Centre, Xi'An Institute of Optics and Precision Mechanics of CAS, China
Source title:2017 2nd International Conference on Image, Vision and Computing, ICIVC 2017
Abbreviated source title:Int. Conf. Image, Vis. Comput., ICIVC
Part number:1 of 1
Issue title:2017 2nd International Conference on Image, Vision and Computing, ICIVC 2017
Issue date:July 18, 2017
Publication year:2017
Pages:463-467
Article number:7984599
Language:English
ISBN-13:9781509062379
Document type:Conference article (CA)
Conference name:2nd International Conference on Image, Vision and Computing, ICIVC 2017
Conference date:June 2, 2017 - June 4, 2017
Conference location:Chengdu, China
Conference code:129351
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Mapping special images in video scene has practical important applications in the fields of advertising and television production, while there have been few reports on how to map in the background of video scene without impacting foreground targets which makes the result more realistic. We propose a method to embed images on certain location in video scene of fixed viewing angle. We first build background model from video frames, extract foreground using background subtraction method, then calibrate the camera using intrinsic information from video. On this basis we establish mapping matrices of image coordinate to world coordinate and image coordinate to video image coordinate according to location and orientation parameters. By using mapping matrices we embed the images on the background of video scene in right posture, and reproduce the foreground objects. Experiments in different scenes show that the proposed method is easily to use which makes mapping realistic and without impacting foreground objects, and has a good practicability. 2017 IEEE.
Number of references:19
Main heading:Mapping
Controlled terms:Cameras - Matrix algebra - Television applications
Uncontrolled terms:Background subtraction method - Camera self calibration - Foreground extraction - Foreground objects - Image coordinates - Orientation parameter - Video scene - World coordinates
Classification code:405.3 Surveying - 716.4 Television Systems and Equipment - 742.2 Photographic Equipment - 921.1 Algebra
DOI:10.1109/ICIVC.2017.7984599
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<20>
Accession number:20180304654536
Title:Lunar-edge based on-orbit modulation transfer function (MTF) measurement
Authors:Cheng, Ying (1, 2); Yi, Hongwei (1); Liu, Xinlong (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No.17, Xinxi Road, Xi'an; 710119, China; (2) University of Chinese, Academy of Sciences, Jingjia Road, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10463
Part number:1 of 1
Issue title:AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Issue date:2017
Publication year:2017
Article number:104631U
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614079
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133232
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Modulation transfer function (MTF) is an important parameter for image quality evaluation of on-orbit optical image systems. Various methods have been proposed to determine the MTF of an imaging system which are based on images containing point, pulse and edge features. In this paper, the edge of the moon can be used as a high contrast target to measure on-orbit MTF of image systems based on knife-edge methods. The proposed method is an extension of the ISO 12233 Slanted-edge Spatial Frequency Response test, except that the shape of the edge is a circular arc instead of a straight line. In order to get more accurate edge locations and then obtain a more authentic edge spread function (ESF), we choose circular fitting method based on least square to fit lunar edge in sub-pixel edge detection process. At last, simulation results show that the MTF value at Nyquist frequency calculated using our lunar edge method is reliable and accurate with error less than 2% comparing with theoretical MTF value. 2017 SPIE.
Number of references:25
Main heading:Orbits
Controlled terms:Earth (planet) - Edge detection - Frequency response - Geometrical optics - Least squares approximations - Modulation - Moon - Optical transfer function - Pixels - Transfer functions
Uncontrolled terms:Edge spread function - Image quality evaluation - lunar-edge - Modulation transfer function (MTF) - Modulation transfer function measurements - On orbit - Spatial frequency response - Subpixel edge detection
Classification code:657.2 Extraterrestrial Physics and Stellar Phenomena - 741.1 Light/Optics - 921 Mathematics - 921.6 Numerical Methods
Numerical data indexing:Percentage 2.00e+00%
DOI:10.1117/12.2285836
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<21>
Accession number:20180404671055
Title:Hyperspectral anomaly detection based on machine learning and building selection graph
Authors:Tang, Yehui (1); Qin, Hanlin (1); Liang, Ying (1); Leng, Hanbing (2); Ju, Zezhao (1)
Author affiliation:(1) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710071, China; (2) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China
Corresponding author:Qin, Hanlin
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104625B
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:In hyperspectral images, anomaly detection without prior information develops rapidly. Most of the existing methods are based on restrictive assumptions of the background distribution. However, the complexity of the environment makes it hard to meet the assumptions, and it is difficult for a pre-set data model to adapt to a variety of environments. To solve the problem, this paper proposes an anomaly detection method on the foundation of machine learning and graph theory. First, the attributes of vertexes in the graph are set by the reconstruct errors. And then, robust background endmember dictionary and abundance matrix are received by structured sparse representation algorithm. Second, the Euler distances between pixels in lower-dimension are regarded as edge weights in the graph, after the analysis of the low dimensional manifold structure among the hyperspectral data, which is in virtue of manifold learning method. Finally, anomaly pixels are picked up by both vertex attributes and edge weights. The proposed method has higher probability of detection and lower probability of false alarm, which is verified by experiments on real images. 2017 SPIE.
Number of references:14
Main heading:Graph theory
Controlled terms:Artificial intelligence - Hyperspectral imaging - Independent component analysis - Learning systems - Pixels - Spectroscopy
Uncontrolled terms:Anomaly detection - Anomaly detection methods - Hyperspectral anomaly detection - Low-dimensional manifolds - Lower probabilities - Manifold learning - Probability of detection - Structured sparse representations
Classification code:723.4 Artificial Intelligence - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
DOI:10.1117/12.2285780
Funding details: Number: 2017JM6079, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Provincial Department of Education;Number: 614102033306, Acronym: -, Sponsor: Ministry of Education;Number: LSIT201503, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61401343, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is co-supported by the National Natural Science Foundation of China (61401343), the Joint Funds for the Ministry of Education (614102033306), the National Natural Science Foundation of Shaanxi Provincial (2017JM6079), the Open Research Fund of Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences (LSIT201503).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<22>
Accession number:20180304653285
Title:Distinguishing the number of captured microspheres in dual-beam optical trap by measuring the back light signal
Authors:Zhou, Deyuan (1); Chen, Xinlin (1); Xiao, Guangzong (1, 2); Han, Xiang (1); Jin, Shilong (1)
Author affiliation:(1) College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha; 410073, China; (2) State Key Laboratory of Transient Optics and Photonic, Chinese Academy of Sciences, Xian; 710068, China
Corresponding author:Xiao, Guangzong(xiaoguangzong@nudt.edu.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10460
Part number:1 of 1
Issue title:AOPC 2017: Optoelectronics and Micro/Nano-Optics
Issue date:2017
Publication year:2017
Article number:104601B
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614017
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optoelectronics and Micro/Nano-Optics, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133231
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Optical traps have been widely used in a large variety of applications ranging from biophysics to nano-sciences. More than one microscopic object can be captured in an optical trap. In the practical application, it is always necessary to distinguish and control the number of captured objects in the optical trap. In this paper, a novel method has been presented to distinguish the number of trapped microspheres by measuring the intensity of back signal. Clear descent of the back signal has been observed when a microsphere is captured in the center of optical trap. The relative coupling efficiency of back signal decreases as the number of captured microspheres increases both in experiment and theory. This method contributes to miniaturization and integration of applied systems due to getting rid of the imaging system, and is generally applicable to the area of nanoparticle trapping. 2017 SPIE.
Number of references:13
Main heading:Optical fiber coupling
Controlled terms:Efficiency - Fiber optics - Microspheres
Uncontrolled terms:Coupling efficiency - Dual beam - Light signal - Microscopic objects - Microspheres increase - Nano-particle trapping - Optical manipulation - Optical trap
Classification code:741.1.2 Fiber Optics - 913.1 Production Engineering
DOI:10.1117/12.2284995
Funding details: Number: SKLST201507, Acronym: -, Sponsor: -;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 2017JJ3363, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the Hunan Provincial Natural Science Foundation of China (2017JJ3363) and by the Open Research Fund (SKLST201507) of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<23>
Accession number:20180104607021
Title:Temporal imaging based on four-wave mixing in slow-light photonic crystal waveguide
Authors:Zhou, Mingyang (1); Liu, Hongjun (1, 2); Wang, Zhaolu (1); Huang, Nan (1); Han, Jing (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi'an; 710119, China; (2) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi; 030006, China
Source title:Journal of Optics (United Kingdom)
Abbreviated source title:J. Opt.
Volume:19
Issue:12
Issue date:December 2017
Publication year:2017
Article number:125502
Language:English
ISSN:20408978
E-ISSN:20408986
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:We have proposed a temporal imaging system based on four-wave mixing (FWM) in the dispersion engineered slow-light photonic crystal waveguide (PCW). Dispersion relations of the modified PCW are calculated through the 3D plane wave expansion method. Time lens is demonstrated by solving the couple-mode equations describing the FWM process inside the PCW directly. Intensity and phase evolutions of the signal, pump and idler waves during the FWM process are calculated to investigate temporal imaging. Meanwhile, temporal magnifications with different magnification factors are realized by tuning the total dispersion of the input signals. Furthermore, influences of dispersion and free-carrier effects inside PCW on the temporal imaging performance are analyzed. The simulation results show the capability to realize temporal imaging system based on the FWM process in slow-light engineered PCW. 2017 IOP Publishing Ltd.
Number of references:23
Main heading:Slow light
Controlled terms:Dispersion (waves) - Four wave mixing - Image processing - Imaging systems - Optical systems - Optical waveguides - Photonic crystals - Waveguide components
Uncontrolled terms:Couple mode equation - Dispersion relations - Four Wave Mixing (FWM) - Free-carrier effects - Magnification factors - Photonic crystal waveguide - Temporal imaging - Temporal imaging systems
Classification code:714.3 Waveguides - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 746 Imaging Techniques
DOI:10.1088/2040-8986/aa9138
Funding details: Number: 2016JQ6036, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: No.XAB2015B27, Acronym: -, Sponsor: -;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: No.QNLM2016ORP0111, Acronym: QNLM, Sponsor: Qingdao National Laboratory for Marine Science and Technology;Number: 61505247, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11604377, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275134, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was partially funded by the National Natural Science Foundation of China grant (Nos. 61505247, 11604377, and 61275134), Qingdao National Laboratory for Marine Science and Technology (No.QNLM2016ORP0111), CAS ‘Light of west China’ Program (No.XAB2015B27), and Natural Science Basic Research plan in Shaanxi Province of China (No.2016JQ6036).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<24>
Accession number:20174804481824
Title:Hierarchical recurrent neural network for video summarization
Authors:Zhao, Bin (1); Li, Xuelong (2); Lu, Xiaoqiang (2)
Author affiliation:(1) School of Computer Science, Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710019, China
Source title:MM 2017 - Proceedings of the 2017 ACM Multimedia Conference
Abbreviated source title:MM - Proc. ACM Multimed. Conf.
Part number:1 of 1
Issue title:MM 2017 - Proceedings of the 2017 ACM Multimedia Conference
Issue date:October 23, 2017
Publication year:2017
Pages:863-871
Language:English
ISBN-13:9781450349062
Document type:Conference article (CA)
Conference name:25th ACM International Conference on Multimedia, MM 2017
Conference date:October 23, 2017 - October 27, 2017
Conference location:Mountain View, CA, United states
Conference code:131373
Sponsor:ACM SIGMM
Publisher:Association for Computing Machinery, Inc
Abstract:Exploiting the temporal dependency among video frames or subshots is very important for the task of video summarization. Practically, RNN is good at temporal dependency modeling, and has achieved overwhelming performance in many video-based tasks, such as video captioning and classification. However, RNN is not capable enough to handle the video summarization task, since traditional RNNs, including LSTM, can only deal with short videos, while the videos in the summarization task are usually in longer duration. To address this problem, we propose a hierarchical recurrent neural network for video summarization, called H-RNN in this paper. Specifically, it has two layers, where the first layer is utilized to encode short video subshots cut from the original video, and the final hidden state of each subshot is input to the second layer for calculating its confidence to be a key subshot. Compared to traditional RNNs, H-RNN is more suitable to video summarization, since it can exploit long temporal dependency among frames, meanwhile, the computation operations are significantly lessened. The results on two popular datasets, including the Combined dataset and VTW dataset, have demonstrated that the proposed H-RNN outperforms the state-of-the-arts. 2017 ACM.
Number of references:38
Main heading:Long short-term memory
Controlled terms:Deep learning - Video recording
Uncontrolled terms:Dependency model - Hidden state - Original videos - Second layer - State of the art - Sub-shot - Video frame - Video summarization
Classification code:716.4 Television Systems and Equipment
DOI:10.1145/3123266.3123328
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<25>
Accession number:20171503569200
Title:Window function optimization in atmospheric wind velocity retrieval with doppler difference interference spectrometer
Authors:Chen, Jiejing (1, 2); Feng, Yutao (1); Hu, Bingliang (1); Li, Juan (1); Sun, Jian (1); Hao, Xiongbo (1); Bai, Qinglan (1)
Author affiliation:(1) Key Laboratory of Spectral Imaging Technology of the Chinese Academy of Sciences, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Feng, Yutao(fytciom@opt.ac.cn)
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:37
Issue:2
Issue date:February 10, 2017
Publication year:2017
Article number:0207002
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Doppler difference interference spectrometer is a kind of Fourier transform spectrometer. In the process of atmospheric wind velocity retrieval, even-prolongated recovered spectrum cannot work out the phase information of the target spectral line directly. Meanwhile, there are stray spectral lines and noises in the recovered spectrum, which make the phase of the interferogram changed and the retrieved wind velocity deviated. Therefore, isolation of the target spectral line is necessary in the process of getting the phase information of the recovered spectrum in actual noisy environment. For interferograms with different signal noise ratios the retrieved wind velocities (SNR) optimized by different window functions with different line widths are analyzed by Monte-Carlo method. The results indicate that the Gaussian window function with line width equaling 4 to 5 times of the spectral resolution provides the best performance if the SNR of the measured interferogram is higher than 26.5 dB, and rectangular window function with line width equaling 7 to 12 times-of the spectral resolution provides the best performance if the SNR of the measured interferogram is lower than 26.5 dB. The phase information and the approximative atmospheric wind velocity can be retrieved. 2017, Chinese Lasers Press. All right reserved.
Number of references:13
Page count:7
Main heading:Monte Carlo methods
Controlled terms:Data handling - Fourier transform infrared spectroscopy - Interferometry - Recovery - Signal processing - Signal to noise ratio - Spectral resolution - Spectrometers - Velocity - Wind
Uncontrolled terms:Atmospheric Winds - Fourier transform spectrometers - Interference spectrometer - Noisy environment - Phase information - Rectangular windows - Signal-noise ratio - Spectral data
Classification code:443.1 Atmospheric Properties - 716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 801 Chemistry - 922.2 Mathematical Statistics - 941.4 Optical Variables Measurements
Numerical data indexing:Decibel 2.65e+01dB
DOI:10.3788/AOS201737.0207002
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<26>
Accession number:20172203715584
Title:Centric baffle design of partial field optical system
Authors:Wang, Chenchen (1, 2); Zou, Gangyi (1, 2); Li, Ruichang (1, 2); Fan, Xuewu (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Fan, Xuewu(anxuewu@opt.ac.cn)
Source title:Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Abbreviated source title:Hongwai yu Jiguang Gongcheng Infrared Laser Eng.
Volume:46
Issue:3
Issue date:March 25, 2017
Publication year:2017
Article number:0318002
Language:Chinese
ISSN:10072276
Document type:Journal article (JA)
Publisher:Chinese Society of Astronautics
Abstract:A partial field optical system baffle was designed and optimized. Partial field was non-symmetry along one direction, so a large number light tracing was needed to design the centric, which made it difficult to design. A method of footprint diagram was used to get the coordinate of special light in the space, the size of effective field and the part of baffle blocking light. The part blocking light was removed and a "duck mouth shaped" baffle was got, which can decrease the difficulty of design. By optimizing the design, length of final designed baffle was half of the former one, and reduced the size along Y direction, which can reduce more stray light to enter the later optical system directly. Baffle was modeled and simulated by Solidworks and TracePro software, the PST is about 10-9when the off-axis angle is 30°, which is less than 5.59×10-7, the requirement of the system. The result of the simulation shows that using method of footprint diagram to design inner baffle of a partial field optical system is feasible. 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
Number of references:14
Main heading:Optical systems
Controlled terms:Design - Stray light
Uncontrolled terms:Centric baffle - Effective field - Non symmetries - Off-axis angles - Partial field - SolidWorks - TracePro
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems
DOI:10.3788/IRLA201746.0318002
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<27>
Accession number:20173504103022
Title:Histogram-based human segmentation technique for infrared images
Authors:Wu, Di (1, 2); Zhou, Zuofeng (1); Yang, Hongtao (1); Cao, Jianzhong (1)
Author affiliation:(1) Xi’an Institute of Optics and Precision Mechanics of CAS, Xi’an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Wu, Di(wudi@opt.cn)
Source title:Advances in Intelligent Systems and Computing
Abbreviated source title:Adv. Intell. Sys. Comput.
Volume:555
Part number:1 of 1
Issue title:Recent Developments in Intelligent Computing, Communication and Devices - Proceedings of ICCD 2016
Issue date:2017
Publication year:2017
Pages:129-132
Language:English
ISSN:21945357
ISBN-13:9789811037788
Document type:Conference article (CA)
Conference name:2nd International Conference on Intelligent Computing, Communication and Devices, ICCD 2016
Conference date:August 13, 2016 - August 14, 2016
Conference location:Bhubaneswar, India
Conference code:196339
Publisher:Springer Verlag
Abstract:Human detection in infrared video surveillance system is a challenging issue of computer vision. Effective human segmentation plays an important role in human detection. However, occlusion between different people makes it difficult to segment human groups. In this paper, we propose a new method for infrared human segmentation based on the histogram information. After selecting regions of interest with background subtraction, each connected human region is separated into single ones by analyzing histogram trend and calculating peak number. Experiment results show the accuracy of our method. 2017, Springer Nature Singapore Pte Ltd.
Number of references:7
Main heading:Image segmentation
Controlled terms:Graphic methods - Infrared imaging - Intelligent computing - Security systems
Uncontrolled terms:Background subtraction - Histogram - Histogram information - Human detection - Human segmentation - Infrared video - Regions of interest
Classification code:723.4 Artificial Intelligence - 746 Imaging Techniques - 914.1 Accidents and Accident Prevention
DOI:10.1007/978-981-10-3779-5_16
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<28>
Accession number:20175104560103
Title:Test Method of Angle Error of Limited Rotation Axis System
Authors:Tian, Liu-De (1, 2); Zhao, Jian-Ke (1); Zhou, Yan (1); Wang, Tao (1); Zhao, Huai-Xue (1); Pan, Liang (1); Liu, Zhao-Hui (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Liu, Zhao-Hui(lzh@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:11
Issue date:November 1, 2017
Publication year:2017
Article number:1112005
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:In order to improve the measurement accuracy of the angular error in the limited rotation axis system, the principle and method of measuring the angular error by autocollimation theodolite was used to analysis the error sources which affect the measurement result, the simulation results show that the tilt angle of the axis of the measured shaft is the main error source. Based on the accurate error model, the method to identify the misadjustment parameters and separate the introduced error by using the least squares estimation was proposed to realize the high precision measurement of angle error. The experiment was carried out with the accuracy of 2″ single-axis position turntable as tested object. The test results of conventional methods are -309.1″~428.6″, the test error is large, however, the test results of the proposed method are -0.89″~1.01″ and -1.01″~0.93″, the test error is 0.70″ and 0.78″, eliminating the test error introduced by equipment misadjustment. The method has the advantages of simple equipment and simple operation, and can realize the high precision measurement the angle error of the limited rotation axis system, can solve the problem of limited rotation axis systemengineering testing problem. 2017, Science Press. All right reserved.
Number of references:22
Main heading:Least squares approximations
Controlled terms:Angle measurement - Errors - Measurement - Rotation
Uncontrolled terms:Conventional methods - Coodinate transformation - Error model - High-precision measurement - Least squares estimation - Measurement accuracy - Rotation axis - Testing method
Classification code:921.6 Numerical Methods - 931.1 Mechanics - 943.2 Mechanical Variables Measurements
DOI:10.3788/gzxb20174611.1112005
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<29>
Accession number:20174904513944
Title:Regularized class-specific subspace classifier
Authors:Zhang, Rui (1); Nie, Feiping (1); Li, Xuelong (2)
Author affiliation:(1) School of Computer Science, Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an; 710072, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Nie, Feiping(feipingnie@gmail.com)
Source title:IEEE Transactions on Neural Networks and Learning Systems
Abbreviated source title:IEEE Trans. Neural Networks Learn. Sys.
Volume:28
Issue:11
Issue date:November 2017
Publication year:2017
Pages:2738-2747
Article number:7556299
Language:English
ISSN:2162237X
E-ISSN:21622388
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In this paper, we mainly focus on how to achieve the translated subspace representation for each class, which could simultaneously indicate the distribution of the associated class and the differences from its complementary classes. By virtue of the reconstruction problem, the class-specific subspace classifier (CSSC) problem could be represented as a series of biobjective optimization problems, which minimize and maximize the reconstruction errors of the related class and its complementary classes, respectively. Besides, the regularization term is specifically introduced to ensure the whole system's stability. Accordingly, a regularized class-specific subspace classifier (RCSSC) method can be further proposed based on solving a general quadratic ratio problem. The proposed RCSSC method consistently converges to the global optimal subspace and translation under the variations of the regularization parameter. Furthermore, the proposed RCSSC method could be extended to the unregularized case, which is known as unregularized CSSC (UCSSC) method via orthogonal decomposition technique. As a result, the effectiveness and the superiority of both proposed RCSSC and UCSSC methods can be verified analytically and experimentally. 2016 IEEE.
Number of references:32
Main heading:Concrete beams and girders
Controlled terms:Artificial intelligence - Computer networks - Translation (languages)
Uncontrolled terms:Bi-objective optimization - Class-specific subspace - Orthogonal decomposition techniques - Ratio problem - Reconstruction problems - Regularization parameters - Regularization terms - Subspace representation
Classification code:412 Concrete - 723.4 Artificial Intelligence - 903.1 Information Sources and Analysis
DOI:10.1109/TNNLS.2016.2598744
Funding details: Number: -, Acronym: NPU, Sponsor: Northwestern Polytechnical University;Number: 3102015BJ(II)JJZ01, Acronym: -, Sponsor: -;
Funding text:Manuscript received January 25, 2016; revised May 25, 2016 and August 3, 2016; accepted August 4, 2016. Date of publication August 30, 2016; date of current version October 16, 2017. This work was supported by the Fundamental Research Funds for the Central Universities under Grant 3102015BJ(II)JJZ01. (Corresponding author: Feiping Nie.) R. Zhang and F. Nie are with School of Computer Science and Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi’an 710072, Shaanxi, P. R. China (e-mail: ruizhang8633@gmail.com; feipingnie@gmail.com).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<30>
Accession number:20173003967991
Title:Nonlinear Interference Spectrum Data Reconstruction Algorithm for Image Plane Interference
Authors:Zhang, Zhinan (1); Li, Libo (1); Hu, Bingliang (1); Chen, Jiejing (1, 2); Gao, Xiaohui (1, 2); Yang, Fanchao (1)
Author affiliation:(1) Key Laboratory of Spectral Imaging Technique, Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Hu, Bingliang(249771538@qq.com)
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:37
Issue:6
Issue date:June 10, 2017
Publication year:2017
Article number:0630002
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:The static Michelson interferometer is an entity type image plane interferometer, which can solve the technical difficulty of large field of view of interferometer. In the sampling process, nonlinear interference error is introduced by the interferometer, which leads to a consequence that the spectrum cannot be recovered accurately, so the nonlinear interference error needs to be corrected. A theoretical model of nonlinear interference error is analyzed, a nonlinear interference spectrum data reconstruction algorithm is presented, and a simulation is carried out. The simulation results indicate that the target spectrum can be recovered successfully by the reconstruction algorithm with numerical fitting, and the nonlinear interference error is eliminated. The reconstruction algorithm using Cauchy dispersion formula fitting is more precise than the reconstruction algorithm using linear fitting, and the relative error between the recovery spectrum and the input spectrum is less than 0.7% at the absorption peak. 2017, Chinese Lasers Press. All right reserved.
Number of references:14
Main heading:Absorption spectroscopy
Controlled terms:Errors - Image reconstruction - Michelson interferometers - Recovery - Spectroscopy
Uncontrolled terms:Cauchy dispersion formula - Image plane - Interference spectrum - Large field of views - Reconstruction algorithms - Spectrum recoveries - Technical difficulties - Theoretical modeling
Classification code:941.3 Optical Instruments
Numerical data indexing:Percentage 7.00e-01%
DOI:10.3788/AOS201737.0630002
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<31>
Accession number:20181004855823
Title:Research on Mural Painting Appreciatione Based on Spectral Imaging and Spectral Analysis
Authors:Xu, Wen-Zhong (1); Tang, Xing-Jia (2); Zhang, Geng (2); Yang, Fan-Chao (2); Huang, Xin (2); Li, Xia (2); Liu, Dai-Yun (3); Zhao, Xi-Chen (3)
Author affiliation:(1) Shaanxi History Museum, Xi'an; 710000, China; (2) Xi' an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an; 710119, China; (3) Shaanxi Archaeological Institute, Xi'an; 710000, China
Corresponding author:Tang, Xing-Jia(tang-xingjia@163.com)
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:37
Issue:10
Issue date:October 1, 2017
Publication year:2017
Pages:3235-3241
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press
Abstract:For the technology requirements of appreciating mural paintings, according to the advantages of spectral imaging and spectral analysis, the usages of spectral imaging in appreciating mural paintings were discussed, which could improve the traditional expert experience identification method by providing more information in the appreciation and assessment. Spectral method is an important scientific analysis method with many characteristics, like non-contact, lossless, scientific, accurate and quantifiable, which can be used to appreciate mural paintings. Firstly, the application was analyzed from different functions. Secondly, the measurements of mural paintings in HAN XIU tomb were processed by spectral analysis, primary component analysis, independent component analysis, relevance judgment and interactive processing, which were for proving the real affection of the theory analysis. At last, based on the experiments, some key technologies were summarized, for example, normalized measurements, analysis of characters of image and spectral data, processer of image and spectral data. The experiment results showed that the spectral imaging and analysis were useful for the recognition of pigment, the extraction of hidden information, the enhancement of weak information, and the classification and recognition of different properties. Meanwhile, some exploratory works can be unfolded, like modified child analysis, repairing of paintings (such as repairing mural paintings in HAN XIU tomb). 2017, Peking University Press. All right reserved.
Number of references:10
Main heading:Image processing
Controlled terms:Classification (of information) - Independent component analysis - Painting - Processing - Repair - Spectroscopy - Spectrum analysis
Uncontrolled terms:Classification and recognition - Hidden information - Identification method - Mural paintings - Primary component analysis - Relevance judgment - Scientific analysis - Spectral imaging
Classification code:716.1 Information Theory and Signal Processing - 813.1 Coating Techniques - 913.4 Manufacturing - 913.5 Maintenance
DOI:10.3964/j.issn.1000-0593(2017)10-3235-07
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<32>
Accession number:20181104898703
Title:A Spiral-Maneuver Control Method for a Fixed-Trim Warhead
Authors:Zhou, Min (1); Zhou, Jun (1); Lu, Ming-Fei (2)
Author affiliation:(1) Institute of Precision Guidance and Control, Northwestern Polytechnical University, Xi'an; 710072, China; (2) Xi'an Institute of Applied Optics, Xi'an; 710065, China
Source title:Yuhang Xuebao/Journal of Astronautics
Abbreviated source title:Yuhang Xuebao
Volume:38
Issue:11
Issue date:November 30, 2017
Publication year:2017
Pages:1195-1203
Language:Chinese
ISSN:10001328
CODEN:YUXUD6
Document type:Journal article (JA)
Publisher:China Spaceflight Society
Abstract:Given the problem that the common spiral-maneuver control method to realize both vertical and lateral overload needed is not applicable for a fixed-trim warhead with a controllable lift-force direction but an uncontrollable magnitude, a new spiral-maneuver control method is proposed for a moving-mass fixed-trim warhead in the control mode of single rolling channel. Firstly, the relative motion model is formulated with the spiraling angle and spiraling angular velocity. It is an intuitional description of the spiraling motion. Based on the relationship of the spiraling motion variables and angular rates of light-of-sight, the spiral-maneuver command is designed to ensure that the angular rates of light-of-sight converge to zero at the end. The back-stepping control method is then applied in the integrated guidance and control of the mass-point motion and the rolling attitude motion. The bank angle is controlled by a one-dimension moving mass to adjust the direction of the lift force. Thus, there's a component of the lift force controlling the angle between the relative velocity vector and the line of sight to trace the desired spiraling angle, while the rest component results in a spiraling angular velocity with an invariable direction. Numerical simulations demonstrate that the proposed spiral-maneuver control method is effective for a fixed-trim warhead in the mode of single rolling channel control. It is simple and potential to be used in engineering. 2017, Editorial Dept. of JA. All right reserved.
Number of references:14
Main heading:Motion control
Controlled terms:Angular velocity - Numerical methods
Uncontrolled terms:Attitude motions - Back-stepping controls - Fixed-trim warhead - Integrated guidance and controls - Motion variables - Relative motion models - Relative velocity - Spiral maneuver
Classification code:731.3 Specific Variables Control - 921.6 Numerical Methods
DOI:10.3873/j.issn.1000-1328.2017.11.008
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<33>
Accession number:20170303262993
Title:Simple and fast spectral domain algorithm for quantitative phase imaging of living cells with digital holographic microscopy
Authors:Min, Junwei (1, 2); Yao, Baoli (2); Ketelhut, Steffi (1); Engwer, Christian (3); Greve, Burkhard (4); Kemper, Bj？rn (1)
Author affiliation:(1) Biomedical Technology Center, University of Muenster, Mendelstra？e 17, Muenster; D-48149, Germany; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) Institute for Computational and Applied Mathematics, University of Muenster, Orleans-Ring 10, Muenster; D-48149, Germany; (4) Department of Radiotherapy-Radiooncology, University of Muenster, Albert-Schweitzer Campus 1 Building A1, Muenster; D-48149, Germany
Corresponding author:Kemper, Bj？rn(bkemper@uni-muenster.de)
Source title:Optics Letters
Abbreviated source title:Opt. Lett.
Volume:42
Issue:2
Issue date:January 15, 2017
Publication year:2017
Pages:227-230
Language:English
ISSN:01469592
E-ISSN:15394794
CODEN:OPLEDP
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We present a simple and fast phase aberration compensation method in digital holographic microscopy (DHM) for quantitative phase imaging of living cells. By analyzing the frequency spectrum of an off-axis hologram, phase aberrations can be compensated for automatically without fitting or pre-knowledge of the setup and/or the object. Simple and effective computation makes the method suitable for quantitative online monitoring with highly variable DHM systems. Results from automated quantitative phase imaging of living NIH-3T3 mouse fibroblasts demonstrate the effectiveness and the feasibility of the method. 2017 Optical Society of America.
Number of references:15
Main heading:Aberrations
Controlled terms:Cell culture - Holograms - Microscopic examination - Online systems - Phase measurement
Uncontrolled terms:Digital holographic microscopy - Frequency spectra - Living cell - Mouse-fibroblasts - Online monitoring - Phase aberrations - Quantitative phase imaging - Spectral domains
Classification code:722.4 Digital Computers and Systems - 743 Holography - 746 Imaging Techniques - 942.2 Electric Variables Measurements
DOI:10.1364/OL.42.000227
Funding details: Number: -, Acronym: CAAS, Sponsor: Chinese Academy of Agricultural Sciences;Number: -, Acronym: DFG, Sponsor: Deutsche Forschungsgemeinschaft;Number: -, Acronym: DFG, Sponsor: Deutsche Forschungsgemeinschaft;Number: 61405242, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC) (61405242); Cluster of Excellence 1003 of the Deutsche Forschungsgemeinschaft (DFG) (DFG EXC 1003 Cells in Motion); Visiting Scholarship for Young Scientists, Chinese Academy of Science. J. M. was awarded a Visiting Scholarship of the Chinese Academy of Science for Young Scientists.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<34>
Accession number:20180404671057
Title:Improved automatic exposure algorithm for the stereoscopic panoramic camera in space application
Authors:Wang, Jiali (1, 2); Duan, Yongqiang (1); Zheng, Peiyun (1); Gao, Wei (1)
Author affiliation:(1) Space Optics Laboratory, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104625D
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:The automatic exposure algorithms have been successfully used in a variety of imaging platforms. However, most automatic exposure algorithms are not suitable for the application in space due to the complicated space environment, such as dramatically varying temperature and special space background. Additionally, the algorithms must be designed to adapt to the hardware platform with the limited storage capacity and real-Time capability. This paper proposes an improved automatic exposure algorithm for the special application scenario in space, which is suitable for the real-Time application of space panorama cameras. In this paper, a simulation experiment of the mean-based exposure algorithm is carried out. And the result shows that temperature change and deep dark background in space environment will cause the computation error. So we introduce the iterative calculation and automatic threshold segmentation method to improve the mean-based exposure algorithm. The improved algorithm is implemented using FPGA in standard hardware description language (VHDL), and a test platform to simulating deep space environment is built with a halogen lamp, a whiteboard and a temperature controlled tank in a dark room. The experiment results show that the exposure time almost unchanged when the dark background varies greatly (25% - 100%), which verifies that the effect of dark background is removed. And it can be demonstrated that the influence of temperature on the algorithm is decreased, which based on the experiment result that the exposure time decreases with increasing temperature (15°C to 70°C). 2017 SPIE.
Number of references:12
Main heading:Iterative methods
Controlled terms:Cameras - Computer hardware description languages - Hardware - Space applications - Stereo image processing
Uncontrolled terms:Automatic threshold - Increasing temperatures - Iterative calculation - Panoramic cameras - Real time capability - Real-time application - Special applications - Varying temperature
Classification code:605 Small Tools and Hardware - 656 Space Flight - 723.1.1 Computer Programming Languages - 723.2 Data Processing and Image Processing - 742.2 Photographic Equipment - 921.6 Numerical Methods
Numerical data indexing:Percentage 2.50e+01% to 1.00e+02%, Temperature 2.88e+02K to 3.43e+02K
DOI:10.1117/12.2285786
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<35>
Accession number:20173804167426
Title:Medical Image Fusion Based on Feature Extraction and Sparse Representation (Open Access)
Authors:Fei, Yin (1, 2); Wei, Gao (2); Zongxi, Song (2)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academic of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Fei, Yin(yinfei@opt.cn)
Source title:International Journal of Biomedical Imaging
Abbreviated source title:Int. J. Biomed. Imaging
Volume:2017
Issue date:2017
Publication year:2017
Article number:3020461
Language:English
ISSN:16874188
E-ISSN:16874196
Document type:Journal article (JA)
Publisher:Hindawi Limited, 410 Park Avenue, 15th Floor, 287 pmb, New York, NY 10022, United States
Abstract:As a novel multiscale geometric analysis tool, sparse representation has shown many advantages over the conventional image representation methods. However, the standard sparse representation does not take intrinsic structure and its time complexity into consideration. In this paper, a new fusion mechanism for multimodal medical images based on sparse representation and decision map is proposed to deal with these problems simultaneously. Three decision maps are designed including structure information map (SM) and energy information map (EM) as well as structure and energy map (SEM) to make the results reserve more energy and edge information. SM contains the local structure feature captured by the Laplacian of a Gaussian (LOG) and EM contains the energy and energy distribution feature detected by the mean square deviation. The decision map is added to the normal sparse representation based method to improve the speed of the algorithm. Proposed approach also improves the quality of the fused results by enhancing the contrast and reserving more structure and energy information from the source images. The experiment results of 36 groups of CT/MR, MR-T1/MR-T2, and CT/PET images demonstrate that the method based on SR and SEM outperforms five state-of-the-art methods. 2017 Yin Fei et al.
Number of references:38
Main heading:Image enhancement
Controlled terms:Biomedical signal processing - Computerized tomography - Feature extraction - Image fusion - Medical imaging - Medical problems
Uncontrolled terms:Energy distributions - Image representations - Intrinsic structures - Mean square deviation - Multi-scale geometric analysis - Multimodal medical images - Sparse representation - Structure information
Classification code:716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing - 723.5 Computer Applications - 746 Imaging Techniques
DOI:10.1155/2017/3020461
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<36>
Accession number:20180404671047
Title:A novel remote sensing image fusion scheme based on NSCT and Compressed Sensing
Authors:Wan, Peng (1); Song, Zongxi (2)
Author affiliation:(1) Space Optics Laboratory, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Wan, Peng
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104624T
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:In this letter, we propose a novel remote sensing image fusion method based on the non-subsampled contourlet transform and the compressed sensing (CS) theory.[2][3] Method First, the IHS transformation of the multispectral images is conducted to extract the I component. Secondly, the panchromatic image and the component intensity of the multispectral image are decomposed by NSCT. Then the NSCT coefficients of high and low frequency subbands are fused by different rules, respectively. For the high frequency subbands, the absolute maximum selection rule is used to integrate high-pass subbands; while the adaptive regional energy weighting rule is proposed to fuse low-pass subbands. The sparse coefficients are fused before being measured by Gaussian matrix. The fused image is accurately reconstructed by Compressive Sampling Matched Pursuit algorithm (CoSaMP). Some experiments are taken to investigate the performance of our proposed method, and the results prove its superiority to the counterparts. 2017 SPIE.
Number of references:10
Main heading:Image fusion
Controlled terms:Adaptive optics - Compressed sensing - Image processing - Remote sensing
Uncontrolled terms:Compressive sampling - Compressive sensing - IHS transformation - Multispectral images - Non-sub-sampled contourlet transforms - Panchromatic images - Pursuit algorithms - Remote sensing images
Classification code:716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing - 741.1 Light/Optics
DOI:10.1117/12.2285590
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<37>
Accession number:20173504083067
Title:Optical intensity square root differentiator based on an integrated Kerr frequency comb source
Authors:Xu, Xingyuan (1); Wu, Jiayang (1); Shoeiby, Mehrdad (2); Nguyen, Thach G. (2); Chu, Sai T. (3); Little, Brent E. (4); Morandotti, Roberto (5, 6, 7); Mitchell, Arnan (2); Moss, David J. (1)
Author affiliation:(1) Centre for Micro-Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (2) School of Engineering, RMIT University, Melbourne; VIC; 3000, Australia; (3) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong; (4) Xi'an Institute of Optics and Precision Mechanics Precision Mechanics of CAS, Xi'an, China; (5) INSR-énergie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (6) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (7) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Corresponding author:Moss, David J.(dmoss@swin.edu.au)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F52-IPRSN 2017
Part number:1 of 1
Issue title:Advanced Photonics, IPRSN 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:Advanced Photonics, IPRSN 2017
Conference date:July 24, 2017 - July 27, 2017
Conference location:New Orleans, LA, United states
Conference code:136878
Publisher:OSA - The Optical Society
Abstract:We propose and experimentally demonstrate an optical intensity square root differentiator based on an integrated comb source. The proposed differentiator features full reconfigurablity and compact structure. Transmission responses and temporal characterization are also experimentally demonstrated. OSA 2017.
Number of references:7
Page count:3
Main heading:Fiber optic sensors
Uncontrolled terms:Comb source - Compact structures - Differentiators - Frequency combs - Optical intensities - Reconfigurablity - Square roots - Transmission response
Classification code:741.1.2 Fiber Optics
DOI:10.1364/IPRSN.2017.IW1A.3
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<38>
Accession number:5096588
Title:Hyperspectral Image Superresolution by Transfer Learning
Authors:Yuan, Yuan (1); Zheng, Xiangtao (1); Lu, Xiaoqiang (1)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian; 710119, China
Corresponding author:Lu, Xiaoqiang(luxq666666@gmail.com)
Source title:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Abbreviated source title:IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens.
Volume:10
Issue:5
Issue date:May 2017
Publication year:2017
Pages:1963-1974
Article number:7855724
Language:English
ISSN:19391404
E-ISSN:21511535
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers
Abstract:Hyperspectral image superresolution is a highly attractive topic in computer vision and has attracted many researchers' attention. However, nearly all the existing methods assume that multiple observations of the same scene are required with the observed low-resolution hyperspectral image. This limits the application of superresolution. In this paper, we propose a new framework to enhance the resolution of hyperspectral images by exploiting the knowledge from natural images: The relationship between low/high-resolution images is the same as that between low/high-resolution hyperspectral images. In the proposed framework, the mapping between low- A nd high-resolution images can be learned by deep convolutional neural network and be transferred to hyperspectral image by borrowing the idea of transfer learning. In addition, to study the spectral characteristic between low- A nd high-resolution hyperspectral image, collaborative nonnegative matrix factorization (CNMF) is proposed to enforce collaborations between the low- A nd high-resolution hyperspectral images, which encourages the estimated solution to extract the same endmembers with low-resolution hyperspectral image. The experimental results on ground based and remote sensing data suggest that the proposed method achieves comparable performance without requiring any auxiliary images of the same scene. ？ 2016 IEEE.
Number of references:58
Controlled terms:artificial neural network - computer vision - image resolution - imaging method - mapping - remote sensing
Classification code:71.8.5.4 Remote sensing: numerical and image analysis
DOI:10.1109/JSTARS.2017.2655112
Database:GEOBASE
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<39>
Accession number:20164202908369
Title:Plasmonic Black Absorbers for Enhanced Photocurrent of Visible-Light Photocatalysis
Authors:Tan, Furui (1, 2); Wang, Ning (1, 2); Lei, Dang Yuan (1, 2); Yu, Weixing (3); Zhang, Xuming (1, 2)
Author affiliation:(1) The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen; 518057, Hong Kong; (2) Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong; (3) Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Zhang, Xuming(apzhang@polyu.edu.hk)
Source title:Advanced Optical Materials
Abbreviated source title:Adv. Opt. Mater.
Volume:5
Issue:2
Issue date:January 18, 2017
Publication year:2017
Article number:1600399
Language:English
E-ISSN:21951071
Document type:Journal article (JA)
Publisher:Wiley-VCH Verlag
Abstract:Plasmonic resonance of noble metal nanoparticles can drastically enhance the visible response of wide-bandgap photocatalysts such as TiO
Number of references:39
Main heading:Gold nanoparticles
Controlled terms:Energy efficiency - Gold - Infrared devices - Light - Metal nanoparticles - Photocatalysis - Photocurrents - Plasmonics - Plasmons - Precious metals - Solar absorbers - Solar energy - Solar power generation - Titanium dioxide
Uncontrolled terms:black absorbers - Current technology - Perfect absorber - Photo-thermal systems - Plasmonic resonances - Solar applications - Visible and near infrared - Visible-light photocatalysis
Classification code:525.2 Energy Conservation - 547.1 Precious Metals - 615.2 Solar Power - 657.1 Solar Energy and Phenomena - 741.1 Light/Optics - 761 Nanotechnology - 804.2 Inorganic Compounds - 931.3 Atomic and Molecular Physics
Numerical data indexing:Size 2.00e-07m
DOI:10.1002/adom.201600399
Funding details: Number: 509513, Acronym: -, Sponsor: Hong Kong Arts Development Council;Number: G-YN07, Acronym: -, Sponsor: Hong Kong Polytechnic University;Number: 61377068, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China (no. 61377068), the Research Grants Council of Hong Kong (N_PolyU505/13, PolyU 5334/12E, PolyU 152184/15E, and 509513), and The Hong Kong Polytechnic University (grants G-YN07, G-YBBE, 4-BCAL, 1-ZVAW, 1-ZE14, A-PM21, 1-ZE27, and 1-ZVGH).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<40>
Accession number:20172703875075
Title:Packaging IGBT modules by rapid sintering of nanosilver paste in a current way
Authors:Xie, Yijing (1); Mei, Yunhui (1); Feng, Shuangtao (1); Zhang, Pu (2); Zhang, Long (3); Yang, Yingkun (3)
Author affiliation:(1) School of Material Science and Engineering, Tianjin Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin, China; (2) State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences, Xi'an, China; (3) Microsystem and Terahertz Research Center, China Academy of Engineering Physics, Chengdu; 610200, China
Corresponding author:Mei, Yunhui(yunhui@tju.edu.cn)
Source title:2017 International Conference on Electronics Packaging, ICEP 2017
Abbreviated source title:Int. Conf. Electron. Pack., ICEP
Part number:1 of 1
Issue title:2017 International Conference on Electronics Packaging, ICEP 2017
Issue date:June 5, 2017
Publication year:2017
Pages:112-116
Article number:7939336
Language:English
ISBN-13:9784990218836
Document type:Conference article (CA)
Conference name:2017 International Conference on Electronics Packaging, ICEP 2017
Conference date:April 19, 2017 - April 22, 2017
Conference location:Tendo, Yamagata, Japan
Conference code:128207
Sponsor:ASE Group; Components, Packaging, and Manufacturing Technology Society Japan Chapter (IEEE CPMT); et al.; International Microelectronics and Packaging Society, iMAPS; Namics; The Japan Institute of Electronics Packaging (JIEP)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Rapid sintering of nanosilver paste had been proposed to bond power chips in our previous work. It seems a potential good way to improve the efficiency of power module manufacturing because of the much shorter sintering time, i.e., 15 seconds. In this study, we tried the way of rapid sintering of nanosilver paste for bonding power chips in order to verify the feasibility of the rapid sintering method. Both the static and the dynamic performance of the IGBT modules using rapid sintered nanosilver as die attachment have been characterized at both room temperature and 150oC. The results shows that this rapid sintering way could be used to bond power chips in a much shorter time to fabricate IGBT modules using nanosilver paste because of the comparable static and dynamic electrical properties as those of commercial IGBT modules with the same power rating from MacMic and Infineon. 2017 Japan Institute of Electronics Packaging.
Number of references:14
Main heading:Sintering
Controlled terms:Chip scale packages - Insulated gate bipolar transistors (IGBT)
Uncontrolled terms:Current sintering - Double pulse - Igbt-modules - Nano silver - Rapid sintering
Classification code:714.2 Semiconductor Devices and Integrated Circuits
Numerical data indexing:Time 1.50e+01s
DOI:10.23919/ICEP.2017.7939336
Funding details: Number: 2015AA034501, Acronym: -, Sponsor: -;Number: 61334010, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 13JCQNJC06600, Acronym: -, Sponsor: Natural Science Foundation of Tianjin Municipal Science and Technology Commission;Number: 13ZCZDGX01106, Acronym: -, Sponsor: Natural Science Foundation of Tianjin Municipal Science and Technology Commission;
Funding text:The authors would like to gratefully acknowledge the financial supports from the National Natural Science Foundation of China (No. 61334010), the National High Technology Research and Development Program of China (No. 2015AA034501), and the Tianjin Municipal Natural Science Foundation (Nos. 13ZCZDGX01106 and 13JCQNJC06600).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<41>
Accession number:20172003677493
Title:Sparse Learning with Stochastic Composite Optimization
Authors:Zhang, Weizhong (1); Zhang, Lijun (2); Jin, Zhongming (1); Jin, Rong (3); Cai, Deng (1); Li, Xuelong (4); Liang, Ronghua (5); He, Xiaofei (1)
Author affiliation:(1) State Key Lab of CADandCG, College of Computer Science, Zhejiang University, 388 Yuhang Tang Road, Hangzhou, Zhejiang; 310058, China; (2) National Key Laboratory for Novel Software Technology, Nanjing University, Nanjing, Jiangsu; 210023, China; (3) Alibaba Group, Seattle; WA; 98057, United States; (4) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transicent Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian, Shaanxi; 710119, China; (5) College of Information Engineering, Zhejiang University of Technology, No. 288 Liuhe Road, Hangzhou, Zhejiang; 310058, China
Source title:IEEE Transactions on Pattern Analysis and Machine Intelligence
Abbreviated source title:IEEE Trans Pattern Anal Mach Intell
Volume:39
Issue:6
Issue date:June 1, 2017
Publication year:2017
Pages:1223-1236
Article number:7486981
Language:English
ISSN:01628828
CODEN:ITPIDJ
Document type:Journal article (JA)
Publisher:IEEE Computer Society
Abstract:In this paper, we study Stochastic Composite Optimization (SCO) for sparse learning that aims to learn a sparse solution from a composite function. Most of the recent SCO algorithms have already reached the optimal expected convergence rate O(1/λT), but they often fail to deliver sparse solutions at the end either due to the limited sparsity regularization during stochastic optimization (SO) or due to the limitation in online-to-batch conversion. Even when the objective function is strongly convex, their high probability bounds can only attain O(log(1/δ)/T) with δ is the failure probability, which is much worse than the expected convergence rate. To address these limitations, we propose a simple yet effective two-phase Stochastic Composite Optimization scheme by adding a novel powerful sparse online-to-batch conversion to the general Stochastic Optimization algorithms. We further develop three concrete algorithms, OptimalSL, LastSL and AverageSL, directly under our scheme to prove the effectiveness of the proposed scheme. Both the theoretical analysis and the experiment results show that our methods can really outperform the existing methods at the ability of sparse learning and at the meantime we can improve the high probability bound to approximately O(log(log(T)/δ)/λT). 2016 IEEE.
Number of references:29
Main heading:Stochastic systems
Controlled terms:Optimization - Probability
Uncontrolled terms:Composite functions - Composite optimization - Failure Probability - Objective functions - Sparse learning - Sparsity regularizations - Stochastic optimization algorithm - Stochastic optimizations
Classification code:921.5 Optimization Techniques - 922.1 Probability Theory - 961 Systems Science
DOI:10.1109/TPAMI.2016.2578323
Funding details: Number: 2013CB336500, Acronym: -, Sponsor: -;Number: 61233011, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Basic Research Program of China (973 Program) under Grant 2013CB336500, National Natural Science Foundation of China under Grant 61233011, and National Youth Topnotch Talent Support Program.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<42>
Accession number:20174704432658
Title:The effect factors of the line of sight jitter
Authors:Chang, Sansan (1); Yang, Hongtao (1); Liu, Guangsen (1); Gao, Bo (1); Guo, Yunzeng (1)
Author affiliation:(1) XI'AN Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Source title:Proceedings - 9th International Conference on Intelligent Human-Machine Systems and Cybernetics, IHMSC 2017
Abbreviated source title:Proc. - Int. Conf. Intell. Hum.-Mach. Syst. Cybern., IHMSC
Volume:2
Part number:2 of 2
Issue title:Proceedings - 9th International Conference on Intelligent Human-Machine Systems and Cybernetics, IHMSC 2017
Issue date:September 20, 2017
Publication year:2017
Pages:245-248
Article number:8048152
Language:English
ISBN-13:9781538630228
Document type:Conference article (CA)
Conference name:9th International Conference on Intelligent Human-Machine Systems and Cybernetics, IHMSC 2017
Conference date:August 26, 2017 - August 27, 2017
Conference location:Hangzhou, Zhejiang, China
Conference code:130925
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:The stability precision is the key technical factor of optical-electro inertially stabilized platform. Combined with the mechanism of inertially stabilized platform system, the mathematical model of the pitch gimbal of inertially stabilized platform is established. The disturbance impacts of stability precision are analyzed and concluded in this paper. And the expression about how the disturbance source impact line of sight precision are deduced by the analysis of mathematical mode with classical engineering control algorithm. The analyses are validated by simulations and experiments, which may provide the reference for engineering application. 2017 IEEE.
Number of references:6
Main heading:Precision engineering
Controlled terms:Cybernetics - Jitter - Man machine systems
Uncontrolled terms:Disturbance torque - Electromotive torque - Engineering applications - Engineering controls - Gyro noise - Inertially stabilized platforms - Line of Sight - Technical factors
DOI:10.1109/IHMSC.2017.168
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<43>
Accession number:20174404314074
Title:Nuclear Norm-Based 2DLPP for Image Classification
Authors:Lu, Yuwu (1, 2); Yuan, Chun (1, 2); Lai, Zhihui (3); Li, Xuelong (4); Wong, Wai Keung (5); Zhang, David (6)
Author affiliation:(1) Tsinghua-CUHK Joint Research Center for Media Sciences, Technologies, Graduate School at Shenzhen, Tsinghua University, Shenzhen; 518055, China; (2) College of Computer Science and Software Engineering, Shenzhen University, Shenzhen; 518055, China; (3) Institute of Textiles and Clothing, Hong Kong Polytechnic University, Hong Kong, Hong Kong; (4) Center for OPTical IMagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences, Xi'an; 710119, China; (5) Institute of Textiles and Clothing, HongKong Polytechnic University, Hong Kong, Hong Kong; (6) Biometrics Research Center, Hong Kong Polytechnic University, Hong Kong, Hong Kong
Corresponding author:Yuan, Chun(yuanc@sz.tsinghua.edu.cn)
Source title:IEEE Transactions on Multimedia
Abbreviated source title:IEEE Trans Multimedia
Volume:19
Issue:11
Issue date:November 2017
Publication year:2017
Pages:2391-2403
Article number:7924357
Language:English
ISSN:15209210
CODEN:ITMUF8
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Two-dimensional locality preserving projections (2DLPP) that use 2D image representation in preserving projection learning can preserve the intrinsic manifold structure and local information of data. However, 2DLPP is based on the Euclidean distance, which is sensitive to noise and outliers in data. In this paper, we propose a novel locality preserving projection method called nuclear norm-based two-dimensional locality preserving projections (NN-2DLPP). First, NN-2DLPP recovers the noisy data matrix through low-rank learning. Second, noise in data is removed and the learned clean data points are projected on a new subspace. Without the disturbance of noise, data points belonging to the same class are kept as close to each other as possible in the new projective subspace. Experimental results on six public image databases with face recognition, object classification, and handwritten digit recognition tasks demonstrated the effectiveness of the proposed method. 1999-2012 IEEE.
Number of references:62
Main heading:Image classification
Controlled terms:Character recognition - Classification (of information) - Face recognition - Two dimensional
Uncontrolled terms:Handwritten digit recognition - Locality preserving projections - Object classification - preserving projections - Public image database - robust - Two-dimensional locality preserving projection (2DLPP) - Two-dimensional locality preserving projections
Classification code:716.1 Information Theory and Signal Processing
DOI:10.1109/TMM.2017.2703130
Funding details: Number: 2016M590100, Acronym: -, Sponsor: China Postdoctoral Science Foundation;Number: 2011AA01A205, Acronym: -, Sponsor: -;Number: 61602270, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:Manuscript received October 19, 2016; revised February 27, 2017 and April 26, 2017; accepted May 4, 2017. Date of publication May 10, 2017; date of current version October 13, 2017. This work was supported in part by the Natural Science Foundation of China under Grant 61602270, Grant 61375012, Grant 61573248, Grant 61761130079, and Grant U1433112, in part by the China Postdoctoral Science Foundation under Grant 2016M590100 and Grant 2016M590812, and in part by the National High Technology Research and Development Plan (863 Plan) under Grant 2011AA01A205. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Wolfgang Hürst. (Corresponding author: Chun Yuan.) Y. Lu and C. Yuan are with the Tsinghua-CUHK Joint Research Center for Media Sciences, Technologies, and Systems, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China (e-mail: luyuwu2008@163.com; yuanc@sz.tsinghua.edu.cn).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<44>
Accession number:20172403762954
Title:Generation of carrier-envelope phase stabilized laser from solid plates and application in high-harmonic generation
Authors:Liu, Yangyang (1); He, Peng (2); Zhao, Kun (1); Huang, Hangdong (2); Jiang, Yujiao (2); Huang, Pei (3); Teng, Hao (1); He, Xinkui (1); Fang, Shaobo (1); Hou, Xun (3); Wei, Zhiyi (1)
Author affiliation:(1) Institute of Physics, Chinese Academy of Sciences, Beijing; 100190, China; (2) School of Physics and Optoelectronics Engineering, Xidian University, Xi'an; 710071, China; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F43-CLEO_AT 2017
Part number:1 of 1
Issue title:CLEO: Applications and Technology, CLEO_AT 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:CLEO: Applications and Technology, CLEO_AT 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:135878
Publisher:OSA - The Optical Society
Abstract:We demonstrated carrier-envelope phase (CEP) stabilized pulse as short as 5.4fs by compressing the octave-spanning spectrum from solid-state plates. Continuous and discrete HHG were observed by using the laser pulse as driver with different CEP. 2017 OSA.
Number of references:8
Page count:2
Main heading:Harmonic generation
Uncontrolled terms:Carrier-envelope phase - High harmonic generation - Octave-spanning spectra - Solid plates - Stabilized lasers
Numerical data indexing:Time 5.40e-15s
DOI:10.1364/CLEO_AT.2017.AF1B.4
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<45>
Accession number:20180404671595
Title:Integrated generation of complex optical quantum states and their coherent control
Authors:Roztocki, Piotr (1); Kues, Michael (1, 2); Reimer, Christian (1); Romero Cortés, Luis (1); Sciara, Stefania (1, 3); Wetzel, Benjamin (1, 4); Zhang, Yanbing (1); Cino, Alfonso (3); Chu, Sai T. (5); Little, Brent E. (6); Moss, David J. (7); Caspani, Lucia (8, 9); Aza？a, José (1); Morandotti, Roberto (1, 10, 11)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) Department of Energy, Information Engineering and Mathematical Models, University of Palermo, Palermo, Italy; (4) School of Mathematical and Physical Sciences, University of Sussex, Falmer, Brighton; BN1 9RH, United Kingdom; (5) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, Hong Kong; (6) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China; (7) Centre for Micro Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (8) Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow; G1 1RD, United Kingdom; (9) Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh; EH14 4AS, United Kingdom; (10) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China; (11) National Research University of Information Technologies, Mechanics and Optics, St Petersburg, Russia
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10456
Part number:1 of 1
Issue title:Nanophotonics Australasia 2017
Issue date:2017
Publication year:2017
Article number:104561A
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510613935
Document type:Conference article (CA)
Conference name:Nanophotonics Australasia 2017
Conference date:December 10, 2017 - December 13, 2017
Conference location:Melbourne, VIC, Australia
Conference code:133393
Sponsor:AXT Inc.; Lastek; neaspec GmbH; PriTel, Inc.; Swinburne University of Technology; WITec
Publisher:SPIE
Abstract:Complex optical quantum states based on entangled photons are essential for investigations of fundamental physics and are the heart of applications in quantum information science. Recently, integrated photonics has become a leading platform for the compact, cost-efficient, and stable generation and processing of optical quantum states. However, onchip sources are currently limited to basic two-dimensional (qubit) two-photon states, whereas scaling the state complexity requires access to states composed of several (<2) photons and/or exhibiting high photon dimensionality. Here we show that the use of integrated frequency combs (on-chip light sources with a broad spectrum of evenly-spaced frequency modes) based on high-Q nonlinear microring resonators can provide solutions for such scalable complex quantum state sources. In particular, by using spontaneous four-wave mixing within the resonators, we demonstrate the generation of bi- and multi-photon entangled qubit states over a broad comb of channels spanning the S, C, and L telecommunications bands, and control these states coherently to perform quantum interference measurements and state tomography. Furthermore, we demonstrate the on-chip generation of entangled high-dimensional (quDit) states, where the photons are created in a coherent superposition of multiple pure frequency modes. Specifically, we confirm the realization of a quantum system with at least one hundred dimensions. Moreover, using off-the-shelf telecommunications components, we introduce a platform for the coherent manipulation and control of frequencyentangled quDit states. Our results suggest that microcavity-based entangled photon state generation and the coherent control of states using accessible telecommunications infrastructure introduce a powerful and scalable platform for quantum information science. COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
Number of references:20
Main heading:Quantum entanglement
Controlled terms:Four wave mixing - Light - Light sources - Nanophotonics - Photonics - Photons - Quantum communication - Quantum computers - Quantum optics - Resonators
Uncontrolled terms:Coherent manipulation - Coherent superpositions - Frequency combs - Integrated photonics - Nonlinear process - Quantum information science - Spontaneous four-wave mixing - Telecommunications infrastructures
Classification code:716 Telecommunication; Radar, Radio and Television - 722 Computer Systems and Equipment - 741.1 Light/Optics - 931.3 Atomic and Molecular Physics - 931.4 Quantum Theory; Quantum Mechanics
DOI:10.1117/12.2286435
Funding details: Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;Number: IT06530, Acronym: -, Sponsor: Mitacs;Number: 207748, Acronym: -, Sponsor: -;Number: 7004189, Acronym: CityU, Sponsor: City University of Hong Kong;Number: -, Acronym: REA, Sponsor: Research Executive Agency;Number: 656607, Acronym: -, Sponsor: -;Number: XDB24030300, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: PIOF-GA-2013-625466, Acronym: -, Sponsor: -;Number: 074-U 01, Acronym: -, Sponsor: Government Council on Grants, Russian Federation;Number: DP150104327, Acronym: -, Sponsor: -;Number: -, Acronym: -, Sponsor: Canada Research Chairs;
Funding text:We thank R. Helsten for technical insights; P. Kung from QPS Photronics for the help and processing equipment; as well as QuantumOpus and N. Bertone of OptoElectronics Components for their support and for providing us with state-of-the-art photon detection equipment. This work was made possible by the following funding sources: Natural Sciences and Engineering Research Council of Canada (NSERC) (Steacie, Strategic, Discovery, and Acceleration Grants Schemes, Vanier Canada Graduate Scholarships, USRA Scholarship); Mitacs (IT06530) and PBEEE (207748); MESI
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<46>
Accession number:20170303255295
Title:Efficient point matching under uneven and dramatic illumination changes
Authors:Yang, Rui (1, 2); Liu, Zhaohui (1); Yang, Tao (1, 2); Li, Wenhao (1, 2)
Author affiliation:(1) Chinese Academy of Sciences, Xi'An Institute of Optics and Precision Mechanics, No. 17 Xinxi Road, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, No. 19A Yuquanlu, Beijing; 100049, China
Corresponding author:Yang, Rui(yangrui@opt.cn)
Source title:Journal of Electronic Imaging
Abbreviated source title:J. Electron. Imaging
Volume:26
Issue:1
Issue date:January 1, 2017
Publication year:2017
Article number:013001
Language:English
ISSN:10179909
E-ISSN:1560229X
CODEN:JEIME5
Document type:Journal article (JA)
Publisher:SPIE
Abstract:Point matching under illumination changes is significant for many vision information applications. However, the uneven and dramatic illumination variations model is rarely considered in existing point matching algorithms. Therefore, a method to match features efficiently under uneven and dramatic illumination changes is presented. This method extracts and describes illumination invariant interesting points from matched multibrightness layers that are obtained by a set of contrast stretching functions and prior information based on original images. Layers matching is insensitive to large unevenness of illumination changes and provides similar images in brightness and structure, so the effects of large uneven illumination changes can be reduced greatly. This algorithm is compatible with most detectors and descriptors. To accelerate the computing speed, the features from the accelerated segment test detector and the improved speeded up robust features descriptor are chosen in this paper. In addition, the combination of priority Hamming distance matching and Lowe's matching algorithms is first proposed to increase the matching speed. This method is generic and can be used in most point matching under all varying illumination conditions. Experimental results demonstrate that the proposed method improves the quality of matched points significantly. 2017 SPIE and IS&T.
Number of references:31
Main heading:Hamming distance
Controlled terms:Computer applications - Imaging techniques
Uncontrolled terms:Illumination conditions - Illumination invariant - Illumination variation - matched multibrightness layers - Point-matching - priority Hamming distance matching - Speeded up robust features - Uneven illuminations
Classification code:723.5 Computer Applications - 746 Imaging Techniques
DOI:10.1117/1.JEI.26.1.013001
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<47>
Accession number:20170503309096
Title:Passively mode-locked laser with an ultra-narrow spectral width
Authors:Kues, Michael (1, 2); Reimer, Christian (1); Wetzel, Benjamin (1, 3); Roztocki, Piotr (4); Little, Brent E. (5); Chu, Sai T. (1); Hansson, Tobias (1); Viktorov, Evgeny A. (6); Moss, David J. (7); Morandotti, Roberto (1, 6, 8)
Author affiliation:(1) Institut National de la Recherche Scientifique-Energie Materiaux Telecommunications, 1650 Boulevard Lionel-Boulet, Varennes; QLD; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) School of Mathematical and Physical Sciences, University of Sussex, Falmer, Brighton; BN1 9RH, United Kingdom; (4) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xinxi Ave, Xi'an, Shaanxi, China; (5) Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, Hong Kong; (6) National Research University of Information Technologies, Mechanics and Optics, Petersburg; 199034, Russia; (7) Centre for Micro Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (8) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of Chin, Chengdu Sichuan; 610054, China
Source title:Nature Photonics
Abbreviated source title:Nat. Photon.
Volume:11
Issue:3
Issue date:March 1, 2017
Publication year:2017
Pages:159-162
Language:English
ISSN:17494885
E-ISSN:17494893
Document type:Journal article (JA)
Publisher:Nature Publishing Group, Houndmills, Basingstoke, Hampshire, RG21 6XS, United Kingdom
Abstract:Most mode-locking techniques introduced in the past focused mainly on increasing the spectral bandwidth to achieve ultrashort, sub-picosecond-long coherent light pulses. By contrast, less importance seemed to be given to mode-locked lasers generating Fourier-Transform-limited nanosecond pulses, which feature the narrow spectral bandwidths required for applications in spectroscopy, the efficient excitation of molecules, sensing and quantum optics. Here, we demonstrate a passively mode-locked laser system that relies on simultaneous nested cavity filtering and cavity-enhanced nonlinear interactions within an integrated microring resonator. This allows us to produce optical pulses in the nanosecond regime (4.3 ns in duration), with an overall spectral bandwidth of 104.9 MHz-more than two orders of magnitude smaller than previous realizations. The very narrow bandwidth of our laser makes it possible to fully characterize its spectral properties in the radiofrequency domain using widely available GHz-bandwidth optoelectronic components. In turn, this characterization reveals the strong coherence of the generated pulse train.
Number of references:31
Main heading:Mode-locked fiber lasers
Controlled terms:Bandwidth - Fourier series - Laser pulses - Lasers - Passive mode locking - Quantum optics
Uncontrolled terms:Microring resonator - Mode-locking techniques - Nonlinear interactions - Optoelectronic components - Orders of magnitude - Passively mode-locked lasers - Spectral bandwidth - Spectral properties
Classification code:716.1 Information Theory and Signal Processing - 741.1 Light/Optics - 744.1 Lasers, General - 921.3 Mathematical Transformations
Numerical data indexing:Time 4.30e-09s
DOI:10.1038/nphoton.2016.271
Funding details: Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;
Funding text:Natural Sciences and Engineering Research Council of Canada (NSERC)
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.ErratuFlg:618120623
<48>
Accession number:20170603336018
Title:High-efficiency supercontinuum generation in solid thin plates at 0.1 TW level
Authors:He, Peng (1, 2); Liu, Yangyang (2); Zhao, Kun (2); Teng, Hao (2); He, Xinkui (2); Huang, Pei (3); Huang, Hangdong (1); Zhong, Shiyang (2); Jiang, Yujiao (1); Fang, Shaobo (2); Hou, Xun (3); Wei, Zhiyi (2)
Author affiliation:(1) School of Physics and Optoelectronics Engineering, Xidian University, Xi'an; 710071, China; (2) Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing; 100190, China; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Zhao, Kun(zhaokun@iphy.ac.cn)
Source title:Optics Letters
Abbreviated source title:Opt. Lett.
Volume:42
Issue:3
Issue date:February 1, 2017
Publication year:2017
Pages:474-477
Language:English
ISSN:01469592
E-ISSN:15394794
CODEN:OPLEDP
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:Supercontinuum generation in a solid-state medium was investigated experimentally. A continuum covering 460 to 950 nm was obtained when 0.8 mJ/30 fs Ti:sapphire laser pulses were applied to seven thin fused silica plates at a 1 kHz repetition rate. The primary processes responsible for spectral broadening were self-phase modulation (SPM) and self-steepening, while SPM and self-focusing were balanced to optimize the spectral broadening and suppress the multiphoton process. The output was compressed to a 5.4 fs and a 0.68 mJ pulse, corresponding to two optical cycles and 0.13 TW of peak power. 2017 Optical Society of America.
Number of references:41
Main heading:Supercontinuum generation
Controlled terms:Fused silica - Multiphoton processes - Pulse repetition rate - Sapphire - Self phase modulation
Uncontrolled terms:Fused silica plates - High-efficiency - Optical cycles - Repetition rate - Self-focusing - Self-steepening - Spectral broadening - Ti: Sapphire laser
Classification code:482.2.1 Gems - 741.1.1 Nonlinear Optics - 744.1 Lasers, General - 812.3 Glass
Numerical data indexing:Energy 6.80e-04J, Frequency 1.00e+03Hz, Power 1.00e+11W, Power 1.30e+11W, Size 4.60e-07m to 9.50e-07m, Time 5.40e-15s
DOI:10.1364/OL.42.000474
Funding details: Number: 2013CB922401, Acronym: -, Sponsor: -;Number: 2013CB922402, Acronym: -, Sponsor: -;Number: 11574384, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11434016, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61575219, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61210017, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Key Basic Research Program of China (2013CB922401, 2013CB922402); National Natural Science Foundation of China (NSFC) (11434016, 11574384, 61575219); International Joint Research Program of the National Natural Science Foundation of China (61210017).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<49>
Accession number:20175204570947
Title:Design of compact high zoom ratio infrared optical system
Authors:Qu, Rui (1); Mei, Chao (1); Yang, Hongtao (1); Cao, Jianzhong (1); Zhao, Yan (2)
Author affiliation:(1) Xi'an Institute of Optical and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Luoyang Electro-optical Equipment Research Institute of Aviation Industry Corporation of China, Luoyang; 471009, China
Source title:Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Abbreviated source title:Hongwai yu Jiguang Gongcheng Infrared Laser Eng.
Volume:46
Issue:11
Issue date:November 25, 2017
Publication year:2017
Article number:1104002
Language:Chinese
ISSN:10072276
Document type:Journal article (JA)
Publisher:Chinese Society of Astronautics
Abstract:In order to solve the problems in high zoom ratio lens design, a two-stage-of-series zoom lens model was proposed based on optics zoom theory. Therefore, differential zoom equations were deduced and solved to help the lens power assignments, also the cam curve optimization condition and method were proved. In this model, first stage zoom was achieved by the two-part-zoom front part, and the given movement pattern of the compensation lens and the second magnified lens determined the second stage zoom, by which the 100% cooled stop efficiency was assured. Based on this method, a 70x MWIR zoom lens under the requirements of F/4, focal length 6.5-455 mm, HFOV 0.92°-58.2°, work waveband 3.7-4.8 μm was designed, which only used two kinds of infrared materials, consisted of 10 lenses, total length 300 mm, had good image quality and tolerance character. 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
Number of references:15
Main heading:Lenses
Controlled terms:Curve fitting - Infrared radiation - Optical design - Optical systems
Uncontrolled terms:Focal lengths - High zoom ratio - Infrared material - Infrared optical systems - Infrared technology - Movement pattern - Optimization conditions - Zoom lens
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 921.6 Numerical Methods
Numerical data indexing:Percentage 1.00e+02%, Size 3.00e-01m, Size 3.70e-06m to 4.80e-06m, Size 6.50e-03m to 4.55e-01m
DOI:10.3788/IRLA201746.1104002
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<50>
Accession number:20171703607581
Title:Design of VisSWIR continuous zoom optical system
Authors:Yang, Mingyang (1, 2); Yang, Hongtao (1, 2); Qu, Ruia (1); Mei, Chaoa (1); Zhou, Zuofeng (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese, Academy of Sciences, Beijing; 100049, China
Corresponding author:Yang, Mingyang(yangmingyang@opt.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102564P
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:For 640 pixel×512 pixel cooled staring focal plane array detector, a VisSWIR wideband continuous zoom optical system with 7X zoom range is presented based on the pattern of the negative zoom group and compensating lens group. The zoom system provides continuous changed in the field of view from narrow to the wide. The zoom optical system works in the range of 0.4μm～1.7μm, F number is 4, the pixel of the detector is 15μm. It realizes 20mm～140mm continuous zoom with a smooth zoom path and provided high image quality with the whole zoom range, the zoom ratio is 7:1. The modulation transfer function(MTF) for the system is above 0.5 within the whole focal length range at spatial frequency of 34lp/mm and it almost approaches the diffraction limit. RMS value of spot diameter was investigation, the maximum distortion value is less than 5% and the surface type of all lens applied is spherical. Moreover, the cam curve after optimization is given by the optical design software Code V macro. The design results provide that the zoom system has the small size, high resolution, excellent image quality and the smooth cam curve etc. 2017 SPIE.
Number of references:19
Main heading:Optical systems
Controlled terms:Curve fitting - Diffraction - Image quality - Lenses - Macros - Optical design - Optical transfer function - Photonics - Pixels
Uncontrolled terms:Cam curve - Diffraction limits - Focal plane array detector - Modulation transfer function (MTF) - Optical-design software - VisSWIR - Wide-band - Zoom optical system
Classification code:723.1 Computer Programming - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 921.6 Numerical Methods
Numerical data indexing:Percentage 5.00e+00%, Size 1.50e-05m
DOI:10.1117/12.2259866
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<51>
Accession number:20173904206114
Title:A calibration mechanism based on worm drive for space telescope
Authors:Chong, Yaqin (1, 2); Li, Chuang (1); Xia, Siyu (1); Zhong, Peifeng (1, 2); Lei, Wang (1)
Author affiliation:(1) Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, 17 Xinxi Road, Xian, Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10339
Part number:1 of 1
Issue title:Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers
Issue date:2017
Publication year:2017
Article number:103391S
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510611238
Document type:Conference article (CA)
Conference name:Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers
Conference date:May 21, 2017 - May 24, 2017
Conference location:Shanghai, China
Conference code:130514
Publisher:SPIE
Abstract:In this paper, a new type of calibration mechanism based on worm drive is presented for a space telescope. This calibration mechanism based on worm drive has the advantages of compact size and self-lock. The mechanism mainly consists of thirty-six LEDs as the light source for flat calibration, a diffuse plate, a step motor, a worm gear reducer and a potentiometer. As the main part of the diffuse plate, a PTFE tablet is mounted in an aluminum alloy frame. The frame is fixed on the shaft of the worm gear, which is driven by the step motor through the worm. The shaft of the potentiometer is connected to that of the worm gear to measure the rotation angle of the diffuse plate through a flexible coupler. Firstly, the calibration mechanism is designed, which includes the LEDs assembly design, the worm gear reducer design and the diffuse plate assembly design. The counterweight blocks and two end stops are also designed for the diffuse plate assembly. Then a modal analysis with finite element method for the diffuse plate assembly is completed. 2017 SPIE.
Number of references:8
Main heading:Finite element method
Controlled terms:Aluminum alloys - Assembly - Calibration - High power lasers - Laser damage - Light emitting diodes - Modal analysis - Optical materials - Potentiometers (electric measuring instruments) - Potentiometers (resistors) - Space telescopes - Speed reducers - Stepping motors - Worm gears
Uncontrolled terms:Assembly designs - Compact size - counterweigh block - Gear reducers - Mechanism-based - Plate assemblies - Rotation angles - Self locks
Classification code:541.2 Aluminum Alloys - 601.2 Machine Components - 602 Mechanical Drives and Transmissions - 704.1 Electric Components - 705.3 Electric Motors - 714.2 Semiconductor Devices and Integrated Circuits - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 744.8 Laser Beam Interactions - 921 Mathematics - 921.6 Numerical Methods - 942.1 Electric and Electronic Instruments
DOI:10.1117/12.2269878
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<52>
Accession number:20160902031393
Title:Coarse-to-Fine Learning for Single-Image Super-Resolution
Authors:Zhang, Kaibing (1); Tao, Dacheng (2); Gao, Xinbo (3); Li, Xuelong (4); Li, Jie (5)
Author affiliation:(1) School of Computer and Information Science, Hubei Engineering University, Xiaogan, Hubei; 432000, China; (2) Centre for Quantum Computation and Intelligent Systems, Faculty of Engineering and Information Technology, University of Technology Sydney, 81 Broadway Street, Ultimo; NSW; 2007, Australia; (3) State Key Laboratory of Integrated Services Networks, School of Electronic Engineering, Xidian University, Xi'an, Shaanxi; 710071, China; (4) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (5) Video and Image Processing System Laboratory, School of Electronic Engineering, Xidian University, Xi'an, Shaanxi; 710071, China
Corresponding author:Zhang, Kaibing
Source title:IEEE Transactions on Neural Networks and Learning Systems
Abbreviated source title:IEEE Trans. Neural Networks Learn. Sys.
Volume:28
Issue:5
Issue date:May 2017
Publication year:2017
Pages:1109-1122
Article number:7412770
Language:English
ISSN:2162237X
E-ISSN:21622388
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:This paper develops a coarse-to-fine framework for single-image super-resolution (SR) reconstruction. The coarse-to-fine approach achieves high-quality SR recovery based on the complementary properties of both example learning-and reconstruction-based algorithms: example learning-based SR approaches are useful for generating plausible details from external exemplars but poor at suppressing aliasing artifacts, while reconstruction-based SR methods are propitious for preserving sharp edges yet fail to generate fine details. In the coarse stage of the method, we use a set of simple yet effective mapping functions, learned via correlative neighbor regression of grouped low-resolution (LR) to high-resolution (HR) dictionary atoms, to synthesize an initial SR estimate with particularly low computational cost. In the fine stage, we devise an effective regularization term that seamlessly integrates the properties of local structural regularity, nonlocal self-similarity, and collaborative representation over relevant atoms in a learned HR dictionary, to further improve the visual quality of the initial SR estimation obtained in the coarse stage. The experimental results indicate that our method outperforms other state-of-the-art methods for producing high-quality images despite that both the initial SR estimation and the followed enhancement are cheap to implement. 2012 IEEE.
Number of references:42
Main heading:Image enhancement
Controlled terms:Optical resolving power
Uncontrolled terms:Correlative neighbor regression (CNR) - Non-local means - Regularization terms - Self-similarities - Single images
Classification code:741.1 Light/Optics
DOI:10.1109/TNNLS.2015.2511069
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<53>
Accession number:20181104902971
Title:Novel frontiers in the stabilization of FD-FWM microcombs
Authors:Bao, Hualong (1); Cooper, Andrew (1); Chu, Sai T. (2); Moss, David J. (3); Morandotti, Roberto (4); Little, Brent E. (5); Peccianti, Marco (1); Pasquazi, Alessia (1)
Author affiliation:(1) Emergent Photonics Lab, Dept. of Physics and Astronomy, University of Sussex, BN1 9QH, United Kingdom; (2) City University of Hong Kong, Tat Chee Avenue, Hong Kong, Hong Kong; (3) Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (4) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2., Canada; (5) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China
Source title:ICOCN 2017 - 16th International Conference on Optical Communications and Networks
Abbreviated source title:ICOCN - Int. Conf. Optical Commun. Networks
Volume:2017-January
Part number:1 of 1
Issue title:ICOCN 2017 - 16th International Conference on Optical Communications and Networks
Issue date:November 27, 2017
Publication year:2017
Pages:1-3
Language:English
ISBN-13:9781538632734
Document type:Conference article (CA)
Conference name:16th International Conference on Optical Communications and Networks, ICOCN 2017
Conference date:August 7, 2017 - August 10, 2017
Conference location:Wuzhen, China
Conference code:133380
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In this contribution, we will review our recent activities in the development of double nested cavity lasers. Several stable operating regimes can be achieved over a wide range of conditions. 2017 IEEE.
Number of references:7
Main heading:Resonators
Controlled terms:Optical communication
Uncontrolled terms:Cavity lasers - Micro resonators - Microcombs - Operating regimes - Optical frequency combs
Classification code:717.1 Optical Communication Systems
DOI:10.1109/ICOCN.2017.8121593
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<54>
Accession number:20172203698751
Title:Meter-scale thin film coating equipment based on meniscus-coating technology
Authors:Xu, Jia (1); Xu, Wen-Bin (1); Bu, He-Yang (1); Lu, Zheng-Wu (1); Liu, Zheng-Kun (2); Hong, Yi-Lin (2); Yu, Wei-Xing (3)
Author affiliation:(1) Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun; 130033, China; (2) University of Science and Technology of China, Hefei; 230026, China; (3) Key Laboratory of Spectral Imaging Technology of CAS, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Changchun; 710119, China
Corresponding author:Yu, Wei-Xing(yuwx@opt.ac.cn)
Source title:Guangxue Jingmi Gongcheng/Optics and Precision Engineering
Abbreviated source title:Guangxue Jingmi Gongcheng
Volume:25
Issue:1
Issue date:January 1, 2017
Publication year:2017
Pages:133-140
Language:Chinese
ISSN:1004924X
CODEN:GJGOF4
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences
Abstract:The meniscus chemical coating technology becomes a very promising new chemical thin-film coating technology after traditional coating technologies such as spin-coating and spray coating due to its merits of large area, low-cost and high efficiency. To meet the requirements of one national major projects on the meter-scale chemical thin film coating of optical component surface, based on the systematical research of the meniscus chemical film coating principal, static and dynamic gluing experiments were respectively conducted, and the relationships among the gluing pressure, the gap between substrate and slit, the material hydrophobicity and the morphology of meniscus were analyzed, then the fine tuning of the meniscus could be achieved and equipment based on the meniscus chemical thin film coating technology was developed. The coating uniformity of photo-resist was realized using this equipment on the glass substrate sizing 1400 mm×420 mm, making overall coating thickness error less than 4% and satisfying coating requirements of meter-scale chemical precision thin film coating of optical component surface. 2017, Science Press. All right reserved.
Number of references:25
Main heading:Optical films
Controlled terms:Chemical analysis - Chemical equipment - Coating techniques - Coatings - Film thickness - Gluing - Substrates - Thickness measurement - Thin films
Uncontrolled terms:Chemical coatings - Large area - Liquid level - Meniscus - Optical components
Classification code:741.3 Optical Devices and Systems - 802.1 Chemical Plants and Equipment - 813.1 Coating Techniques - 813.2 Coating Materials - 943.2 Mechanical Variables Measurements
Numerical data indexing:Percentage 4.00e+00%
DOI:10.3788/OPE.20172501.0133
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<55>
Accession number:20172203698744
Title:Radiometric calibration of photographic camera with a composite plane array CCD in laboratory
Authors:Li, Jing (1); Zhao, Jian-Ke (1); Chang, Ming (1); Hu, Xin-Rong (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Li, Jing(lijing@opt.ac.cn)
Source title:Guangxue Jingmi Gongcheng/Optics and Precision Engineering
Abbreviated source title:Guangxue Jingmi Gongcheng
Volume:25
Issue:1
Issue date:January 1, 2017
Publication year:2017
Pages:73-83
Language:Chinese
ISSN:1004924X
CODEN:GJGOF4
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences
Abstract:To eliminate the serious vignetting phenomenon and to solve the difficulty of choosing a relatively positioning target value problems among CCDs during the radiometric calibration of the whole image plane of the photographic camera with a composite plane array CCD, a method for radiometric calibration of multi-CCDs was proposed. After the dark signal calibration on each pixel, the gray value of the pixel in the vignetting area was revised, and by choosing the appropriate relative calibration target gray value of the whole image plane, the radiometric calibration of the photographic camera with a composite plane array CCD was eventually completed. Through analysis of the gray distribution characteristics of vignetting area, the gray correction method for all kinds of explosion time and radiance was proposed. With calculation of fitting coefficient between each CCD gray value and the input radiance respectively, the coefficient with global minimum fitting error was chosen to calculate the relative calibration target gray value corresponding to radiance. After the radiometric calibration using this method, the non-uniformity of the whole image plane of the photographic camera with a composite plane array CCD is reduced from above 20% to better than 2%, and the accuracy of the absolute calibration is 4.23%. The result indicates that the proposed calibration method is appropriate for the calibration of composite planes array CCD. The accuracy of the calibration satisfies the radiometric calibration requirement of aerial cameras. 2017, Science Press. All right reserved.
Number of references:15
Main heading:Calibration
Controlled terms:Antennas - CCD cameras - Pixels - Radiometry
Uncontrolled terms:Absolute calibration - Array CCD - Fitting coefficient - Non-uniformities - Photographic camera - Radiometric calibrations - Relative calibrations - Vignetting
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 944.8 Radiation Measurements
Numerical data indexing:Percentage 2.00e+00%, Percentage 4.23e+00%
DOI:10.3788/OPE.20172501.0073
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<56>
Accession number:20181605019536
Title:A parallel linearized ADMM with application to multichannel tgv-based image restoration
Authors:He, Chuan (1); Hu, Changhua (1); Li, Xuelong (2)
Author affiliation:(1) High-tech Institute of xi'An, China; (2) Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, China
Source title:Proceedings - International Conference on Image Processing, ICIP
Abbreviated source title:Proc. Int. Conf. Image Process. ICIP
Volume:2017-September
Part number:1 of 1
Issue title:2017 IEEE International Conference on Image Processing, ICIP 2017 - Proceedings
Issue date:July 2, 2017
Publication year:2017
Pages:1187-1191
Language:English
ISSN:15224880
ISBN-13:9781509021758
Document type:Conference article (CA)
Conference name:24th IEEE International Conference on Image Processing, ICIP 2017
Conference date:September 17, 2017 - September 20, 2017
Conference location:Beijing, China
Conference code:134723
Sponsor:The Institute of Electrical and Electronics Engineers Signal Processing Society
Publisher:IEEE Computer Society
Abstract:A parallel linearized alternating direction method of multipliers (PLADMM) is proposed to solve large-scale imaging inverse problems, which involve the sum of several linear-operator-coupled nonsmooth terms. In the proposed method, the proximity operators of the nonsmooth terms are called individually at each iteration and the auxiliary variables existing in the classical ADMM are excluded. Therefore, the proposed method possesses a highly parallel structure and most of its substeps can be executed simultaneously. The application to multichannel total generalized variation (TGV) based image restoration shows the effectiveness of the proposed method. 2017 IEEE.
Number of references:16
Main heading:Image reconstruction
Controlled terms:Inverse problems - Iterative methods - Linearization - Mathematical operators - Restoration
Uncontrolled terms:Alternating direction method of multipliers - Auxiliary variables - Generalized variation - Highly parallels - Linear operators - Nonsmooth optimization - PLADMM - Proximity operator
Classification code:921.6 Numerical Methods
DOI:10.1109/ICIP.2017.8296469
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<57>
Accession number:20174504368393
Title:Transmit-receive Isolation Analysis and Test of Cassegrain Optical Antenna
Authors:Xia, Fang-Yuan (1, 2, 3); Yang, Jian-Feng (1); Yao, Zhou-Shi (3); Li, Shuai (3); Wang, Bo (3); Chen, Xiang (3)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Xi'an Institute of SPACE Radio Technology, Xi'an; 710100, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:10
Issue date:October 1, 2017
Publication year:2017
Article number:1023001
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Two schemes such as single pixel signal to noise ratio and extinction ratio are used to evaluate transmit-receive isolation ability based on the practical application of the tracking and communication detector in laser communication system. A method to inhibit the back scattering light was presented which boring a hole in the secondary mirror and increasing light trap. It is derived that when aperture ratio of secondary mirror K is 0.1~0.3, it dose not affect the emission efficiency, the measured results show that the improved Cassegrain optical antenna Transmit-Receive isolation is lower than -40 dB while not affecting the emission efficiency of system, and meet the requirements of laser communication system acquiring, tracking and communication. 2017, Science Press. All right reserved.
Number of references:13
Main heading:Optical communication
Controlled terms:Antennas - Backscattering - Efficiency - Integrated optics - Laser mirrors - Light extinction - Optical instruments - Signal to noise ratio - Stray light
Uncontrolled terms:Aperture ratio - Cassegrain optical antennas - Emission efficiencies - Extinction ratios - Isolation - Isolation analysis - Measured results - Secondary mirror
Classification code:716.1 Information Theory and Signal Processing - 717.1 Optical Communication Systems - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 913.1 Production Engineering - 941.3 Optical Instruments
Numerical data indexing:Decibel -4.00e+01dB
DOI:10.3788/gzxb20174610.1023001
Funding details: Number: 61231012, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The National Natural Science Foundation of China (No.61231012).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<58>
Accession number:20161402198767
Title:Joint Dictionary Learning for Multispectral Change Detection
Authors:Lu, Xiaoqiang (1); Yuan, Yuan (1); Zheng, Xiangtao (1)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Source title:IEEE Transactions on Cybernetics
Abbreviated source title:IEEE Trans. Cybern.
Volume:47
Issue:4
Issue date:April 2017
Publication year:2017
Pages:884-897
Article number:7422756
Language:English
ISSN:21682267
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Change detection is one of the most important applications of remote sensing technology. It is a challenging task due to the obvious variations in the radiometric value of spectral signature and the limited capability of utilizing spectral information. In this paper, an improved sparse coding method for change detection is proposed. The intuition of the proposed method is that unchanged pixels in different images can be well reconstructed by the joint dictionary, which corresponds to knowledge of unchanged pixels, while changed pixels cannot. First, a query image pair is projected onto the joint dictionary to constitute the knowledge of unchanged pixels. Then reconstruction error is obtained to discriminate between the changed and unchanged pixels in the different images. To select the proper thresholds for determining changed regions, an automatic threshold selection strategy is presented by minimizing the reconstruction errors of the changed pixels. Adequate experiments on multispectral data have been tested, and the experimental results compared with the state-of-the-art methods prove the superiority of the proposed method. Contributions of the proposed method can be summarized as follows: 1) joint dictionary learning is proposed to explore the intrinsic information of different images for change detection. In this case, change detection can be transformed as a sparse representation problem. To the authors' knowledge, few publications utilize joint learning dictionary in change detection; 2) an automatic threshold selection strategy is presented, which minimizes the reconstruction errors of the changed pixels without the prior assumption of the spectral signature. As a result, the threshold value provided by the proposed method can adapt to different data due to the characteristic of joint dictionary learning; and 3) the proposed method makes no prior assumption of the modeling and the handling of the spectral signature, which can be adapted to different data. 2017 IEEE.
Number of references:59
Main heading:Image reconstruction
Controlled terms:Errors - Pixels - Remote sensing
Uncontrolled terms:Automatic threshold selection - Change detection - Dictionary learning - Multi-temporal remote sensing - Remote sensing technology - Sparse representation - Spectral information - State-of-the-art methods
DOI:10.1109/TCYB.2016.2531179
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<59>
Accession number:20170803367452
Title:Secrecy-Optimized Resource Allocation for Device-to-Device Communication Underlaying Heterogeneous Networks
Authors:Zhang, Kecheng (1); Peng, Mugen (1); Zhang, Ping (2); Li, Xuelong (3)
Author affiliation:(1) Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing; 100876, China; (2) State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing; 100876, China; (3) Center for Optical Imagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Peng, Mugen(pmg@bupt.edu.cn)
Source title:IEEE Transactions on Vehicular Technology
Abbreviated source title:IEEE Trans. Veh. Technol.
Volume:66
Issue:2
Issue date:February 2017
Publication year:2017
Pages:1822-1834
Article number:7467574
Language:English
ISSN:00189545
CODEN:ITVTAB
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Device-to-device (D2D) communications have recently attracted much attention for the potential capability to improve spectral efficiency (SE) underlaying the existing heterogeneous networks (HetNets). Due to no sophisticated control, D2D-worked user equipments (DUEs) themselves cannot resist eavesdropping or security attacks. It is urgent to maximize the secure capacity for both cellular users and DUEs. This paper formulates the radio resource-allocation problem to maximize the secure capacity of DUEs for D2D communication underlaying HetNets, which consist of high-power nodes (HPNs) and low-power nodes (LPNs). The optimization objective function with transmit bit rate and power constraints, which is nonconvex and hard to directly derive, is first transformed into a matrix form. Then, the equivalent convex form of the optimization problem is derived according to Perron-Frobenius theory. A heuristic iterative algorithm based on the proximal theory is proposed to solve this equivalent convex problem through evaluating the proximal operator of the Lagrange function. Numerical results show that the proposed radio resource-allocation solution significantly improves the secure capacity with a fast convergence speed. 2016 IEEE.
Number of references:26
Main heading:Network security
Controlled terms:Heterogeneous networks - Iterative methods - Optimization - Resource allocation
Uncontrolled terms:Device-to-Device communications - Deviceto-device (D2D) communication - Heterogeneous Network (HetNet) - Heterogeneous network (HetNets) - Heuristic iterative algorithms - Optimization objective function - Radio resource allocation - Secure capacity
Classification code:723 Computer Software, Data Handling and Applications - 912.2 Management - 921.5 Optimization Techniques - 921.6 Numerical Methods
DOI:10.1109/TVT.2016.2566298
Funding details: Number: 2014AA01A701, Acronym: -, Sponsor: -;Number: 2016ZX03001020-006, Acronym: -, Sponsor: -;Number: 61271198, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61361166005, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: KZ201511232036, Acronym: -, Sponsor: Beijing Municipal Commission of Education;
Funding text:This work was supported in part by the National High Technology Research and Development Program of China under Grant 2014AA01A701, by the National Natural Science Foundation of China under Grant 61361166005 and Grant 61271198, by the Science and Technology Development Project of Beijing Municipal Education Commission of China under Grant KZ201511232036, by the National Program for Support of Top-notch Young Professionals, and by the State Major Science and Technology Special Projects under Grant 2016ZX03001020-006.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<60>
Accession number:20180404670997
Title:Taylor series-based generic demosaicking algorithm for multispectral image
Authors:Tonghan, Jia (1, 2); Zhang, Geng (1); Liu, Xuebin (1)
Author affiliation:(1) Xi'an Institute Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:1046237
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Using coated mosaic video spectrometer to collect multispectral image which reduce the spectral information redundancy and data volume greatly and achieve real-Time data transmission conditions. The mosaic video spectrometer imaging technique use a similar mosaic template to capture all the pixels and output a two-dimensional multi-spectral image with dozens of spectral information. The image is divided into a certain size of matrix in its field, and each pixel in the pixel matrix is only for one wavelength information response and every pixel response for different wavelength. The size of the pixel matrix block depends on the number of spectral segments, which results in a low spatial resolution of the single spectral segment image and the spectral information of each pixel absenting severely. Therefore, to reconstruct the complete multi-spectral image, we must estimate and interpolate the missing spatial information and spectral information by demosaicking multispectral image. In this paper, we present a novel demosaicking method to produce the high resolution multispectral image and reconstruct missing spectrum information in high accuracy. The proposed method computes the first-And second-order derivatives of the original single multispectral image to measure the geometry of edges in the image and the spectrum value of missing pixel. Two metrics are used to evaluate the generic algorithm, including the structural similarity index-measurement system (SSIM) for reconstruction performance and the procession time. Experimental results show that the demosaicked images present higher SSIM (more than 0.9) and comparable calculated time performance as traditional ways. This algorithm brings the greatest advantage that make up for the weakness of mosaick multispectral image and reduce the data transmission process cost and storage needs. 2017 SPIE.
Number of references:12
Main heading:Pixels
Controlled terms:Computer programming - Computerized tomography - Data transfer - Digital storage - Image reconstruction - Image segmentation - Matrix algebra - Spectrometers - Spectroscopy
Uncontrolled terms:Demosaicking - Mosaic template - Multispectral images - Real time data transmission - Second order derivatives - Spatial informations - Spectrum information - Structural similarity indices
Classification code:722.1 Data Storage, Equipment and Techniques - 723.1 Computer Programming - 723.5 Computer Applications - 741.3 Optical Devices and Systems - 921.1 Algebra
DOI:10.1117/12.2285052
Funding details: Number: -, Acronym: CAAS, Sponsor: Chinese Academy of Agricultural Sciences;Number: 61501456, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China (No. 61501456) and "Light of West China" Program of Chinese Academy of Science.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<61>
Accession number:20180404671009
Title:Automatic detection of cloud in high-resolution remote sensing images based on adaptive SLIC and MFC
Authors:Kang, Chaomeng (1, 2); Liu, Jiahang (1); Yu, Kai (1, 2); Lu, Zhuanli (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:1046249
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Reliable cloud detection plays an important role in the manufacture of remote sensing and the alarm of natural calamities. However, it makes the task difficult with high-resolution remote sensing images with complex background and various types of clouds with different concentration, color and shapes. Related works mostly used gray, shape and texture features to detect clouds, which obtain results with poor robustness and efficiency. To detect cloud more automatically and robustly, we propose a novel could detection method based on the fusion of local optimum by adaptive simple linear iterative clustering (ASLIC) and the whole optimum by bilateral filtering with an improved saliency detection method. After this step, we trained a multi-feature fusion model based support vector machine(SVM) used geometric feature: fractal dimension index (FRAC) and independence index (IDD) which is proposed by us to describe the piece of region's spatial distribution, texture feature: We use four angles to calculate the gray-level co-occurrence matrix (GLXM) about entropy, energy, contrast, homogeneity, spectral feature(SF): After principal component analysis(PCA) we choose the first bond, the second bond and the near infrared bond(NIR). Besides, in view of the disturbance of water, ice, we also use NDVI and HOT index to estimate the model. Compared to the traditional methods of SLIC,our new method for cloud detection is accurate, and robust when dealing with clouds of different types and sizes over various land satellite images. 2017 SPIE.
Number of references:31
Main heading:Remote sensing
Controlled terms:Adaptive optics - Fractal dimension - Infrared devices - Iterative methods - Learning systems - Principal component analysis - Support vector machines
Uncontrolled terms:Automatic Detection - Bilateral filtering - Cloud detection - Complex background - Gray level co-occurrence matrix - High resolution remote sensing images - Multi-feature fusion - Simple Linear Iterative Clustering
Classification code:723 Computer Software, Data Handling and Applications - 741.1 Light/Optics - 921 Mathematics - 921.6 Numerical Methods - 922.2 Mathematical Statistics
DOI:10.1117/12.2285505
Funding details:
Funding text:Acknowledgments: The authors would like to thank National Key Research and Development Program through Grant
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<62>
Accession number:20174204273360
Title:Nested grazing incidence optics for x ray detection
Authors:Li, Lin-Sen (1, 2, 3); Qiang, Peng-Fei (1, 3); Sheng, Li-Zhi (3); Liu, Yong-An (1, 3); Liu, Zhe (3); Liu, Duo (1, 3); Zhao, Bao-Sheng (3); Zhang, Chun-Min (2)
Author affiliation:(1) University of Chinese Academy of Sciences, Beijing; 100049, China; (2) School of Science, Xi'An Jiaotong University, Xi'an; 710119, China; (3) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Xi'an; 710119, China
Corresponding author:Qiang, Peng-Fei(qiangpengfei@opt.ac.cn)
Source title:Chinese Physics B
Abbreviated source title:Chin. Phys.
Volume:26
Issue:10
Issue date:October 2017
Publication year:2017
Article number:100703
Language:English
ISSN:16741056
E-ISSN:20583834
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:Grazing incidence optics (GIO) is the most important compound in an x-ray detection system; it is used to concentrate the x-ray photons from outer space. A nested planar GIO for x-ray concentration is designed and developed by authors in this paper; planar segments are used as the reflection mirror instead of curved segments because of the simple process and low cost. After the complex assembling process with a special metal supporter, a final circle light spot of φ12 mm was obtained in the visible light testing experiment of GIO; the effective area of 1710.51 mm2@1 keV and 530 mm2@8 keV is obtained in the x-ray testing experiment with the GIO-SDD combination, which is supposed to be a concentrating detector in xray detection systems. 2017 Chinese Physical Society and IOP Publishing Ltd.
Number of references:16
Main heading:X ray detectors
Controlled terms:Light - Metal testing - X rays
Uncontrolled terms:Assembling process - Effective area - Grazing incidence optics - Planar segments - Reflection mirrors - X ray photons - X-ray detection system - X-ray detections
Classification code:741.1 Light/Optics - 932.1 High Energy Physics
DOI:10.1088/1674-1056/26/10/100703
Funding details: Number: SKLGIE2014-M-2-1, Acronym: -, Sponsor: -;Number: 61471357, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;
Funding text:?Project supported by the National Natural Science Foundation of China (Grant No. 61471357) and the State Key Laboratory of Geo-Information Engineering Foundation (Grant No. SKLGIE2014-M-2-1). ?Corresponding author. E-mail: qiangpengfei@opt.ac.cn
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<63>
Accession number:20172503802226
Title:Analysis of the influence of diattenuation on optical imaging system by using the theory of vector plane wave spectrum
Authors:Zhang, Min-Rui (1, 2); He, Zheng-Quan (1); Wang, Tao (1); Tian, Jin-Shou (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Zhang, Min-Rui(m_rzhang@163.com)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:8
Issue date:April 20, 2017
Publication year:2017
Article number:084202
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:In most of the researches of polarization aberration, the influence of diattenuation is not large enough to affect imaging quality evidently. However, the modulation transfer function decreases when optical elements with complex planar dielectric structures and low transmittance, such as beam-splitter and optical modulator, are introduced into an imaging system. In this paper, a vector optical model in Descartes coordinate system is proposed based on the concept of vector plane wave spectrum (VPWS). The results of calculation show that the VPWS model is consistent with Debye model. Compared with Debye vector diffraction integral, the VPWS method is more suitable to the description of the PA introduced by planar optical device with opaque mask, such as larger surface quantum-confined-stark-effect electro-absorption modulator, which is used to modulate the light collected by optical antenna of time-of-flight (TOF) depth system or modulating-retroreflector free-space-optical communication system. In order to simplify the calculation and obtain the conclusion of the change in imaging quality directly, the formula of optical transfer function is decomposed into three parts (TE component, TM component and the correlation of them) instead of polynomial expansion of pupil function. The influences of diattenuation on MTF is studied globally and locally in a range of cut-off frequency of optical imaging system (2NA/λ). Allowance of diattenuation is analysed by numerical calculation, and a mathematical expression is derived. The result shows that the change of diattenuation can be neglected when the spatial frequency v is less than 0.2NA/λ, and the range of allowance decreases with the increase of spatial frequency. According to numerical calculation shown in Fig.7 and the derived formulas (15) and (16), the ratios of reflection/transmission coefficient of s-light and p-light √D
Number of references:23
Main heading:Optical communication
Controlled terms:Antennas - Diffraction - Elastic waves - Electric current control - Free flight - Imaging systems - Light - Light modulators - Modulation - Optical beam splitters - Optical correlation - Optical image storage - Optical instruments - Optical signal processing - Optical transfer function - Polarization - Prisms - Semiconductor quantum wells - Transfer functions - Vector spaces - Vectors
Uncontrolled terms:Diffraction-limited systems - Free space optical communication systems - Mathematical expressions - Modulating retro-reflectors - Planar optical devices - Polarization aberration - Polarization beam splitters - Quantum confined stark effect
Classification code:651.1 Aerodynamics, General - 714.2 Semiconductor Devices and Integrated Circuits - 717.1 Optical Communication Systems - 722.1 Data Storage, Equipment and Techniques - 731.3 Specific Variables Control - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 746 Imaging Techniques - 921 Mathematics - 921.1 Algebra - 931.1 Mechanics - 941.3 Optical Instruments
Numerical data indexing:Percentage 9.00e+01%
DOI:10.7498/aps.66.084202
Funding details: Number: 11274377, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: ZDY2011-2, Acronym: -, Sponsor: -;
Funding text:Project supported by the National Natural Science Foundation of China (Grant No.11274377) and the State Major Research Equipment Project, China (Grant No. ZDY2011-2).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<64>
Accession number:20170103208641
Title:Electron optics design of an 8-in. spherical MCP-PMT
Authors:Chen, Ping (1, 2, 4); Tian, Jinshou (1, 4); Qian, Sen (3); Zhao, Tianchi (3); Liu, Hulin (1); Wei, Yonglin (1); Sai, Xiaofeng (1); He, Jianping (1); Wang, Xing (1); Lu, Yu (1); Chen, Lin (1, 2); Guo, Lehui (1, 2); Pei, Chengquan (1, 2); Hui, Dandan (1, 2)
Author affiliation:(1) Key Laboratory of Ultra-fast photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Institute of High Energy Physics, Chinese Academy of Sciences, Beijing; 100049, China; (4) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; Shanxi; 030006, China
Corresponding author:Chen, Ping
Source title:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Abbreviated source title:Nucl Instrum Methods Phys Res Sect A
Volume:848
Issue date:March 11, 2017
Publication year:2017
Pages:1-8
Language:English
ISSN:01689002
CODEN:NIMAER
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:This paper discusses the electron optical system of an 8-in. spherical MCP-PMT. The MCP assembly, the supporting pole and the supply voltages are carefully designed to optimize the photoelectron collection efficiency and the transit time spread. Coating the MCP nickel-chromium electrode with an additional high secondary emission material is employed to make a breakthrough on the collection efficiency. With the simulation software CST, the Finite Integration method and the Monte Carlo method are combined to evaluate the collection efficiency, the time properties and the Earth's magnetic field effects. Simulation results show that the photocathode active solid angle is over 3.5 πsr, the average collection efficiency can exceed 95% with the coated MCP and the mean transit time spread is 2.2 ns for a typical electric potential of 500 V applied between the photocathode and the MCP input facet. The prototype and the measured single photoelectron spectrum are also presented. 2016 Elsevier B.V.
Number of references:8
Main heading:Monte Carlo methods
Controlled terms:Computer software - Efficiency - Electric potential - Electrooptical effects - Magnetic field effects - Nickel coatings - Optical systems - Photocathodes - Photoelectron spectroscopy - Photoelectrons - Photomultipliers - Photons - Phototubes - Secondary emission
Uncontrolled terms:Collection efficiency - MCP-PMT - Photo multiplier tube - Secondary emission yield - Transit time spread
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 701.2 Magnetism: Basic Concepts and Phenomena - 714.1 Electron Tubes - 723 Computer Software, Data Handling and Applications - 741.3 Optical Devices and Systems - 813.2 Coating Materials - 913.1 Production Engineering - 922.2 Mathematical Statistics - 931.3 Atomic and Molecular Physics
Numerical data indexing:Percentage 9.50e+01%, Size 2.03e-01m
DOI:10.1016/j.nima.2016.11.054
Funding details: Number: 11305258, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The work is supported by a grant from the National Natural Science Foundation of China. [Grant no. 11305258].
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<65>
Accession number:20173104014349
Title:A Method for Solving the Refractive Index Temperature Coefficient Empirical Formula Constants of Optical Glasses Based on 1st Opt
Authors:Ma, Zhi-Yuan (1); Wang, Peng-Fei (2); Wu, Zhi-Qiang (1); Wu, De-Lin (1); Su, Yong (1)
Author affiliation:(1) Test Technology Research Institute, CDGM GLASS Co., Ltd., Chengdu; 610000, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Wang, Peng-Fei(pfwang@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:6
Issue date:June 1, 2017
Publication year:2017
Article number:0616002
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:In order to solve the problem that large deviation of the refraction index and temperature coefficient of refraction index obtained by regression calculation from the experimentally measured ones comes out when ZEMAX method is used for solving these empirical formula constants and regression calculation, 1stOpt differential evolution was used to calculate the temperature coefficient of refraction index empirical formula constants. With fluoro-crown D-FK61 and flint H-TF3A optical glass as examples, the λ
Number of references:16
Main heading:Refractive index
Controlled terms:Evolutionary algorithms - Numerical methods - Optical glass - Optical systems - Optimization - Refraction - Regression analysis - Temperature
Uncontrolled terms:Differential Evolution - Empirical formulas - Inorganic materials - Large deviations - Optical parameter - Refraction index - Temperature coefficient - Thermal compensation
Classification code:641.1 Thermodynamics - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 921.5 Optimization Techniques - 921.6 Numerical Methods - 922.2 Mathematical Statistics
DOI:10.3788/gzxb20174606.0616002
Funding details: Number: 2016YFB0303805, Acronym: -, Sponsor: -;Number: 61307046, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (No. 61307046) and State Key Research and Development Plan (No. 2016YFB0303805).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<66>
Accession number:20173404074971
Title:Normalized euclidean super-pixels for medical image segmentation
Authors:Liu, Feihong (1); Feng, Jun (1); Su, Wenhuo (2); Lv, Zhaohui (1); Xiao, Fang (1); Qiu, Shi (3)
Author affiliation:(1) School of Information and Technology, Northwest University, Xi’an, China; (2) Center for Nonlinear Studies, Department of Mathematicals, Northwest University, Xi’an, China; (3) Xi’an Institute of Optics and Precision Mechanics of CAS, Xi’an, China
Corresponding author:Feng, Jun(fengjun@nwu.edu.cn)
Source title:Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Abbreviated source title:Lect. Notes Comput. Sci.
Volume:10363 LNAI
Part number:3 of 3
Issue title:Intelligent Computing Methodologies - 13th International Conference, ICIC 2017, Proceedings
Issue date:2017
Publication year:2017
Pages:586-597
Language:English
ISSN:03029743
E-ISSN:16113349
ISBN-13:9783319633145
Document type:Conference article (CA)
Conference name:13th International Conference on Intelligent Computing, ICIC 2017
Conference date:August 7, 2017 - August 10, 2017
Conference location:Liverpool, United kingdom
Conference code:195469
Publisher:Springer Verlag
Abstract:We propose a super-pixel segmentation algorithm based on normalized Euclidean distance for handling the uncertainty and complexity in medical image. Benefited from the statistic characteristics, compactness within super-pixels is described by normalized Euclidean distance. Our algorithm banishes the balance factor of the Simple Linear Iterative Clustering framework. In this way, our algorithm properly responses to the lesion tissues, such as tiny lung nodules, which have a little difference in luminance with their neighbors. The effectiveness of proposed algorithm is verified in The Cancer Imaging Archive (TCIA) database. Compared with Simple Linear Iterative Clustering (SLIC) and Linear Spectral Clustering (LSC), the experiment results show that, the proposed algorithm achieves competitive performance over super-pixel segmentation in the state of art. Springer International Publishing AG 2017.
Number of references:12
Main heading:Medical image processing
Controlled terms:Clustering algorithms - Image segmentation - Intelligent computing - Iterative methods - Medical imaging - Pixels
Uncontrolled terms:Competitive performance - Euclidean distance - Linear spectral - Local compactness - Segmentation algorithms - Simple Linear Iterative Clustering - Statistic characteristics - Uncertainty and complexity
Classification code:723.2 Data Processing and Image Processing - 723.4 Artificial Intelligence - 746 Imaging Techniques - 903.1 Information Sources and Analysis - 921.6 Numerical Methods
DOI:10.1007/978-3-319-63315-2_51
Funding details: Number: 61372046, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by National Natural Science Foundation of China (No. 61372046).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<67>
Accession number:20164703040835
Title:A robust stereo matching algorithm based on improved epipolar distance transformation
Authors:Yue, Qi (1, 2, 3); Ma, Caiwen (1); Cao, Xiaoqian (2, 3, 4)
Author affiliation:(1) Xi'an University of Posts and Telecommunications, Xi'an; 710121, China; (2) Xi'an Institute of Optics and Precision Mechanic, CAS, Xi'an; 710119, China; (3) University of Chinese Academy of Sciences, Beijing; 100039, China; (4) Shaanxi University of Science and Technology, Xi'an; 710021, China
Corresponding author:Yue, Qi(yueqi6@163.com)
Source title:Optik
Abbreviated source title:Optik
Volume:130
Issue date:February 1, 2017
Publication year:2017
Pages:91-98
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Elsevier GmbH
Abstract:Aim to the problem of initial epipolar distance transformation algorithm is sensitive to illumination and depth discontinuous, an improved stereo matching algorithm is proposed. In Delta-Gama log-chromaticity space, Gamma correction coefficient is computed firstly according to raw disparity map which is used to Modified the similarity function bandwidth. Secondly, by employing image structure and color features, the segment of epipolar is obtained adaptively. At last, final disparity map is acquired by belief propagation method. Experimental results demonstrate the effectiveness of the proposed transform in illumination change regions and discontinuities regions. The matching rate of proposed algorithm is improved about 60%, comparing with the initial epipolar distance transformation algorithm and state-of-art algorithm such as ANCC(Adaptive Normalized Cross Correlation). 2016 Elsevier GmbH
Number of references:13
Main heading:Stereo image processing
Controlled terms:Computer vision - Image segmentation - Stereo vision
Uncontrolled terms:Belief propagation - Distance transformation - Illumination changes - Normalized cross correlation - Radiometric varying - Similarity functions - Stereo matching - Stereo matching algorithm
Classification code:723.2 Data Processing and Image Processing - 723.5 Computer Applications
Numerical data indexing:Percentage 6.00e+01%
DOI:10.1016/j.ijleo.2016.11.054
Funding details: Number: 2010AA7080302, Acronym: -, Sponsor: -;Number: KGCX1-YW-16, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61275134, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is partially supported by National 863 high technology research and development program (No.: 2010AA7080302 ), Knowledge innovation project of Chinese Academy of Sciences (No. KGCX1-YW-16 ) and National Natural Science Foundation of China (No. 61275134 ).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<68>
Accession number:20171903655160
Title:1.5-MHz repetition rate passively Q-switched Nd:YVO
Authors:Wang, Xi (1, 2); Li, Lu (1, 2); Li, Jin-Ping (3); Wang, Yong-Gang (1, 3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) School of Physics and Information Technology, Shaanxi Normal University, Xi'an; 710119, China
Corresponding author:Wang, Yong-Gang(chinawygxjw@snnu.edu.cn)
Source title:Chinese Physics B
Abbreviated source title:Chin. Phys.
Volume:26
Issue:4
Issue date:April 2017
Publication year:2017
Article number:044203
Language:English
ISSN:16741056
E-ISSN:20583834
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:A transmission-type tungsten disulfide (WS2)-based saturable absorber (SA) is fabricated and applied to passively Q-switched Nd:YVO
Number of references:44
Main heading:Solid state lasers
Controlled terms:Neodymium compounds - Optical materials - Q switched lasers - Q switching - Saturable absorbers - Single crystals - Sulfur compounds - Tungsten compounds
Uncontrolled terms:All solid-state lasers - Average output power - Evaporation method - Low-dimensional materials - Non-linear optical material - Passively Q-switched - Q-switched solid-state lasers - Tungsten disulfide
Classification code:741.3 Optical Devices and Systems - 744 Lasers - 933.1 Crystalline Solids
Numerical data indexing:Frequency 1.18e+06Hz to 1.58e+06Hz, Frequency 1.50e+06Hz, Size 1.06e-06m, Time 1.53e-07s
DOI:10.1088/1674-1056/26/4/044203
Funding details: Number: 61378024, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Project supported by the National Natural Science Foundation of China (Grant No. 61378024).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<69>
Accession number:20170203239137
Title:A new kind of vertically aligned field emission transistor with a cylindrical vacuum channel
Authors:Shen, Zhihua (1); Wang, Xiao (1); Wu, Shengli (1); Tian, Jinshou (2)
Author affiliation:(1) Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an; 710049, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China
Corresponding author:Wu, Shengli(slwu@mail.xjtu.edu.cn)
Source title:Vacuum
Abbreviated source title:Vacuum
Volume:137
Issue date:March 1, 2017
Publication year:2017
Pages:163-168
Language:English
ISSN:0042207X
CODEN:VACUAV
Document type:Journal article (JA)
Publisher:Elsevier Ltd
Abstract:This study investigated a vertically aligned field emission transistor with a cylindrical vacuum channel. The channel length of this proposed transistor can be precisely controlled and easily fabricated to be comparable to the mean free path of electrons in air so that the device can operate in the air without performance degradation. In the study, this vacuum transistor showed a low threshold voltage (1.2 V, 2.2 V, and 3.3 V) with a gate dielectric thickness of 10 nm, 15 nm, and 20 nm and a subthreshold slope of 1.1 V/dec. It was found that the vacuum channel radius should be no less than 20 nm, otherwise, severe performance degradation will appear due to the effect of the gate shield (leading to reduction of the anode current) and electron collision events with the dielectric layer (presenting reliability issues). This kind of vacuum transistor may have wide applications in extreme conditions such as high temperature and intense irradiation. 2017
Number of references:25
Main heading:Transistors
Controlled terms:Field emission - Gate dielectrics - High temperature applications - Threshold voltage
Uncontrolled terms:Field emission transistors - Finite integration technique - Gate dielectric thickness - Low threshold voltage - Mean free path of electrons - Performance degradation - Vacuum channels - Vertically aligned
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 714.2 Semiconductor Devices and Integrated Circuits
DOI:10.1016/j.vacuum.2017.01.002
Funding details: Number: 61275023, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 51271140, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China (51271140, 61275023).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<70>
Accession number:20171303500899
Title:A hydrophobic and abrasion-resistant MgF
Authors:Cui, Xinmin (1, 2); Ding, Ruimin (1); Wang, Mengchao (1, 2); Wang, Conghui (1, 2); Zhang, Jing (1, 2); Wang, Jing (1, 2); Dong, Wensheng (3); Xu, Yao (4)
Author affiliation:(1) Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan; 030001, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Key Laboratory of Applied Surface & Colloid Chemistry of Ministry of Education, Shaanxi Normal University, Shaanxi; 710119, China; (4) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Shaanxi; 710119, China
Corresponding author:Ding, Ruimin
Source title:Journal of Materials Chemistry C
Abbreviated source title:J. Mater. Chem. C
Volume:5
Issue:12
Issue date:2017
Publication year:2017
Pages:3088-3096
Language:English
ISSN:20507534
E-ISSN:20507526
CODEN:JMCCCX
Document type:Journal article (JA)
Publisher:Royal Society of Chemistry
Abstract:An ultralow-index top layer is a prerequisite to preparing high-performance broadband AR coatings. When coupled with hydrophobicity and the abrasion-resistance required in practical applications, the challenge becomes even greater. In this work, a MgF
Number of references:34
Main heading:Magnesium compounds
Controlled terms:Abrasion - Antireflection coatings - Display devices - Heat resistance - Heat treatment - Hydrophobicity - Low temperature operations - Refractive index - Silica - Temperature - Tribology - Wear resistance
Uncontrolled terms:Abrasion resistant - Anti reflective coatings - Broadband AR coatings - Low refractive index - Network structures - Ultralow refractive indices - Water contact angle - Wavelength ranges
Classification code:537.1 Heat Treatment Processes - 641.1 Thermodynamics - 722.2 Computer Peripheral Equipment - 741.1 Light/Optics - 813.2 Coating Materials - 931 Classical Physics; Quantum Theory; Relativity - 931.2 Physical Properties of Gases, Liquids and Solids - 951 Materials Science
Numerical data indexing:Percentage 9.94e+01%, Size 4.00e-07m to 1.00e-06m, Temperature 5.23e+02K
DOI:10.1039/c6tc05307f
Funding details: Number: -, Acronym: -, Sponsor: Shaanxi Normal University;Number: U1530148, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The authors gratefully acknowledge the support from the Natural Science Foundation of China ?Project U1530148?. We also acknowledge the open fund of Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<71>
Accession number:20173003982915
Title:Nanosecond pulse signals restoration via stochastic resonance in the Fabry-Perot cavity with graphene
Authors:Chang, Zheng (1, 3); Liu, Hongjun (1, 2); Huang, Nan (1); Wang, Zhaolu (1); Han, Jing (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi; 030006, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:EPJ Applied Physics
Abbreviated source title:EPJ Appl Phys
Volume:79
Issue:2
Issue date:August 1, 2017
Publication year:2017
Article number:20502
Language:English
ISSN:12860042
E-ISSN:12860050
CODEN:EPAPFV
Document type:Journal article (JA)
Publisher:EDP Sciences
Abstract:We investigate a technology for reconstructing nanosecond pulse noise hidden signals via stochastic resonance, which is based on optical bistability in the Fabry-Perot (F-P) cavity with graphene. The bistable properties are analyzed with different initial wavelengths and Fermi energies. The system is tunable and the bistable behavior of the output intensity can be accurately controlled to obtain a cross-correlation gain larger than 10 in a wide range of input signal-to-noise (SNR) ratio from 1:8 to 1:45. Meanwhile, the distortion of the output signal and the pulse tailing caused by the phase delay can be reduced to a negligible level. This work provides a potential method for detecting low-level or hidden pulse signals in various communication fields. 2017 EDP Sciences.
Number of references:28
Main heading:Signal to noise ratio
Controlled terms:Circuit resonance - Fabry-Perot interferometers - Graphene - Magnetic resonance - Signal reconstruction - Stochastic systems
Uncontrolled terms:Communication fields - Cross correlations - Fabry-Perot cavity - Nanosecond pulse - Nanosecond pulse signal - Output intensity - Potential methods - Stochastic resonances
Classification code:701.2 Magnetism: Basic Concepts and Phenomena - 703.1 Electric Networks - 716.1 Information Theory and Signal Processing - 761 Nanotechnology - 804 Chemical Products Generally - 941.3 Optical Instruments - 961 Systems Science
DOI:10.1051/epjap/2017170145
Funding details: Number: 61505247, Acronym: -, Sponsor: National Aerospace Science Foundation of China;Number: 11604377, Acronym: -, Sponsor: National Aerospace Science Foundation of China;Number: 61275134, Acronym: -, Sponsor: National Aerospace Science Foundation of China;Number: QNLM2016ORP0111, Acronym: QNLM, Sponsor: Qingdao National Laboratory for Marine Science and Technology;
Funding text:This research is supported by the National Nature Science Foundation of China under Grant Nos. 61505247, 11604377 and 61275134, also financially supported by Qingdao National Laboratory for Marine Science and Technology (QNLM2016ORP0111).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<72>
Accession number:20181104893549
Title:Development of the electronics system prototype of the high-speed camera
Authors:Zheng, Yang (1, 2); Li, Ruimin (1, 2); Song, Zongxi (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics Chinese Academy of Sciences Xi'an, Shaanxi Province, China; (2) University of Chinese Academy of Sciences, Beijing, China
Source title:Proceedings of 2017 IEEE 3rd Information Technology and Mechatronics Engineering Conference, ITOEC 2017
Abbreviated source title:Proc. IEEE Inf. Technol. Mechatronics Eng. Conf., ITOEC
Volume:2017-January
Part number:1 of 1
Issue title:Proceedings of 2017 IEEE 3rd Information Technology and Mechatronics Engineering Conference, ITOEC 2017
Issue date:November 27, 2017
Publication year:2017
Pages:1155-1159
Language:English
ISBN-13:9781509053629
Document type:Conference article (CA)
Conference name:3rd IEEE Information Technology and Mechatronics Engineering Conference, ITOEC 2017
Conference date:October 3, 2017 - October 5, 2017
Conference location:Chongqing, China
Conference code:133411
Sponsor:Chongqing Geeks Education Technology Co., Ltd; Chongqing Global Union Academy of Science and Technology; Global Union Academy of Science and Technology; IEEE Beijing Section
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:The high-speed camera is an imaging device that records a particular transient state or all of the high-speed processes. It can accurately record the transient process of the high-speed target in real time and thus allow us to achieve the purpose of analysis of high-speed process through the slow motion playback. So the high-speed camera becomes an important tool for the study of the transient phenomena. This paper presents the development of a high-speed imaging system, which was build based upon a CMOS (Complementary Metal Oxide Semiconductor) image sensor and a high density FPGA (Field Programmable Gate Array) and USB 3.0 (Universal Serial Bus 3.0). In this paper, the design methodology and the electronics system architecture are briefly discussed. Besides, the designs and implements are particularly depicted. Finally the experimental verification shows the correlated results. The system has the advantage of high frame rate, high resolution, high performance and flexibility. 2017 IEEE.
Number of references:7
Main heading:High speed cameras
Controlled terms:CMOS integrated circuits - Field effect transistors - Field programmable gate arrays (FPGA) - Image sensors - Metals - MOS devices - Oxide semiconductors - Speed - System buses
Uncontrolled terms:CMOS (complementary metal oxide semiconductor) - CMOS image sensor - Experimental verification - Fpga(field programmable gate array) - High speed imaging systems - Transient phenomenon - Universal serial bus - USB3.0
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 721.2 Logic Elements - 722.2 Computer Peripheral Equipment - 742.2 Photographic Equipment
DOI:10.1109/ITOEC.2017.8122537
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<73>
Accession number:20181705047001
Title:A design of high-precision BLDCM drive with bus voltage protection
Authors:Lian, Xuezheng (1); Wang, Haitao (1); Xie, Meilin (1, 2); Huang, Wei (1); Li, Dawei (1); Jing, Feng (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics of CAS, Shaanxi, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10605
Part number:1 of 1
Issue title:LIDAR Imaging Detection and Target Recognition 2017
Issue date:2017
Publication year:2017
Article number:1060510
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510617063
Document type:Conference article (CA)
Conference name:LIDAR Imaging Detection and Target Recognition 2017
Conference date:July 23, 2017 - July 25, 2017
Conference location:Changchun, China
Conference code:133763
Sponsor:Chinese Academy of Engineering; Chinese Society for Optical Engineering (CSOE); National Natural Science Foundation of China
Publisher:SPIE
Abstract:In the application of space satellite turntable, the design of balance wheel is very necessary. To solve the acquisition precision of Brushless DC motor speed is low, and the encoder is also more complex, this paper improves the original hall signal measurement methods. Using the logic device to achieve the six frequency multiplication of hall signal, the signal is used as speed feedback to achieve speed closed-loop control and improve the speed stability. At the same time, in order to prevent the E.M.F of BLDC motor to raise the voltage of the bus bar when reversing or braking, and affect the normal operation of other circuit modules, the analog circuit is used to protect the bus bar voltage by the way of energy consumption braking. The experimental results are consistent with the theoretical design, and the rationality and feasibility of the frequency multiplication scheme and bus voltage protection scheme are verified. 2017 SPIE.
Number of references:9
Main heading:Surge protection
Controlled terms:Braking - Brushless DC motors - Busbars - Electric drives - Electric motors - Energy utilization - Flywheels - Logic devices - Optical radar - Wheels
Uncontrolled terms:Balance wheels - BLDC motors - Bus voltage - Frequency multiplication - Normal operations - Space satellites - Speed closed-loop control - Theoretical design
Classification code:525.3 Energy Utilization - 601.1 Mechanical Devices - 601.2 Machine Components - 602 Mechanical Drives and Transmissions - 704 Electric Components and Equipment - 705.3 Electric Motors - 705.3.2 DC Motors - 716.2 Radar Systems and Equipment - 721.2 Logic Elements
DOI:10.1117/12.2286416
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<74>
Accession number:20181104893726
Title:Embedded measurement system of two-dimensional autocollimator based on FPGA
Authors:Gao, Xiang (1); Hu, Xiaodong (2); Yang, Donglai (2); Zhang, Jian (3)
Author affiliation:(1) College of Physics and Information Technology, Shaanxi Normal University, Xi'an Beijing, China; (2) Xi'an Institute of Optics and Precision Mechanics, Academy of Sciences of China, Xi'an Beijing, China; (3) Beijing Institute of Control and Electronic Technology, Xi'an Beijing, China
Source title:Proceedings of 2017 IEEE 3rd Information Technology and Mechatronics Engineering Conference, ITOEC 2017
Abbreviated source title:Proc. IEEE Inf. Technol. Mechatronics Eng. Conf., ITOEC
Volume:2017-January
Part number:1 of 1
Issue title:Proceedings of 2017 IEEE 3rd Information Technology and Mechatronics Engineering Conference, ITOEC 2017
Issue date:November 27, 2017
Publication year:2017
Pages:304-308
Language:English
ISBN-13:9781509053629
Document type:Conference article (CA)
Conference name:3rd IEEE Information Technology and Mechatronics Engineering Conference, ITOEC 2017
Conference date:October 3, 2017 - October 5, 2017
Conference location:Chongqing, China
Conference code:133411
Sponsor:Chongqing Geeks Education Technology Co., Ltd; Chongqing Global Union Academy of Science and Technology; Global Union Academy of Science and Technology; IEEE Beijing Section
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:For the miniaturization of two-dimensional autocollimator, a method of using embedded measurement system instead of special host computer is presented. This system integrates CMOS image sensor's driving circuit, frame processing, adaptive exposure control, centroid subdivision and localization of cross, misalignment angle calculation, display driver and other functions within a FPGA chip, and the sampling image and measurement results are displayed through the TFTLCD mounted on the device body. The engineering prototype shows that the system has characters of high precision, high integration and high reliability. 2017 IEEE.
Number of references:6
Main heading:Adaptive control systems
Controlled terms:Display devices - Field programmable gate arrays (FPGA) - Miniature instruments - Precision engineering
Uncontrolled terms:Autocollimators - CMOS image sensor - Driving circuits - Embedded - High reliability - Measurement system - Miniaturization - Misalignment angles
Classification code:721.2 Logic Elements - 722.2 Computer Peripheral Equipment - 731.1 Control Systems
DOI:10.1109/ITOEC.2017.8122304
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<75>
Accession number:20171703607645
Title:Research on electromechanical resonance of two-axis tracking system
Authors:Zhao, Zhi-Ming (1); Xue, Ying-Jie (1); Zeng, Shu-Qin (1); Li, Zhi-Guo (2)
Author affiliation:(1) School of Mechanic and Electronic Engineering, Shaanxi University of Science and Technology, Xi'an; 710021, China; (2) Xi'an Institute of Optics and Precision Mechanics CAS, New Industrial Park, Xi'an Hi-Tech Industrial Development Zone, NO.17 Xinxi Road, Xi'an, Shaanxi, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102561V
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:The multi-axes synchronous system about the spatial two-axis turntable is the key equipment for semi-physical simulation and test in aerospace. In this paper, the whole structure design of the turntable is created by using Solidworks, then putting the three-dimensional solid model into ANSYS to build the finite element model. The software ANSYS is used to do the simulation about the static and dynamic analysis of two-axis turntable. Based on the modal analysis, we can forecast the inherent frequencies and the mode of vibration during the launch conditions which is very important to the design and safety of the structure. 2017 SPIE.
Number of references:6
Main heading:Finite element method
Controlled terms:Computer software - Modal analysis - Photonics - Tracking (position) - Vibration analysis
Uncontrolled terms:ANSYS - Electromechanical resonances - Inherent frequencies - Semi-physical simulations - Static and dynamic analysis - Synchronous system - Three-Dimensional Solid Modeling - Two-axis turntables
Classification code:723 Computer Software, Data Handling and Applications - 741.1 Light/Optics - 921 Mathematics - 921.6 Numerical Methods
DOI:10.1117/12.2257210
Funding details: Number: 14JK1107, Acronym: -, Sponsor: -;Number: -, Acronym: SUST, Sponsor: Shahjalal University of Science and Technology;Number: 51305246, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is supported by the National Natural Science Foundation of China (No.51305246), Scientific Research Plan Projects of Shaanxi Education Department (No. 14JK1107) and the scientific research project of SUST (No.BJ13-07).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<76>
Accession number:20171503546583
Title:Flexible multifunction optical micro-manipulation technique based on PDMS chip
Authors:Liu, Kunshan (1); Xiao, Guangzong (1, 2); Chen, Xinlin (1); Hu, Shaomin (1); Luo, Hui (1)
Author affiliation:(1) College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha; 410073, China; (2) State Key Laboratory of Transient Optics and Photonic, Chinese Academy of Sciences, Xian; 710068, China
Corresponding author:Xiao, Guangzong
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10244
Part number:1 of 1
Issue title:International Conference on Optoelectronics and Microelectronics Technology and Application
Issue date:2017
Publication year:2017
Article number:1024421
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510609891
Document type:Conference article (CA)
Conference name:International Conference on Optoelectronics and Microelectronics Technology and Application 2016, OMTA 2016
Conference date:October 10, 2016 - October 12, 2016
Conference location:Shanghai, China
Conference code:127002
Sponsor:Chinese Academy of Engineering National; Chinese Society for Optical Engineering; Information and Electronic Engineering Faculty; National Natural Science Foundation of China
Publisher:SPIE
Abstract:Design a chip for flexible multifunction optical micro-manipulation based on elastomeric materials-PDMS. We realized the different motion types of microspheres, including stably capture, spiral motion and orbital rotation, by adjusting the input voltage of piezoceramics designed in PDMS Chip. Compared to conventional techniques, this PDMS chip based method does not require special optical properties of the microspheres to be manipulated. In addition, the technique was convenient and precise for dynamical adjustment of motion types without external influences. From these results, we verify that this multifunctional optical micro-manipulation technique of PDMS elastomeric materials can find potential applications for optical manipulation, including cost-effective on-chip diagnostics, optical sorting and optical binding, etc. 2017 SPIE.
Number of references:17
Main heading:Optical properties
Controlled terms:Cost effectiveness - Elastomers - Microchannels - Microelectronics - Micromanipulators - Microspheres - Optoelectronic devices - Piezoelectric ceramics
Uncontrolled terms:Conventional techniques - Elastomeric materials - External influences - On-chip diagnostics - Optical manipulation - Optical micromanipulation - Optical sorting - Orbital rotations
Classification code:708.1 Dielectric Materials - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 818.2 Elastomers - 911.2 Industrial Economics
DOI:10.1117/12.2261968
Funding details: Number: 61308058, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The project was supported by the National Natural Science Foundation of China (61308058).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<77>
Accession number:20175004522978
Title:Single shot, three-dimensional fluorescence microscopy with a spatially rotating point spread function
Authors:Wang, Zhaojun (1, 2); Cai, Yanan (1, 2); Liang, Yansheng (1, 2); Zhou, Xing (1, 2); Yan, Shaohui (1); Dan, Dan (1); Bianco, Piero R. (3); Lei, Ming (1); Yao, Baoli (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi’ an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’ an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) University at Buffalo, Department of Microbiology and Immunology, No. 12 Capen Hall, Buffalo; NY; 14214, United States
Source title:Biomedical Optics Express
Abbreviated source title:Biomed. Opt. Express
Volume:8
Issue:12
Issue date:December 1, 2017
Publication year:2017
Pages:5493-5506
Article number:#307480
Language:English
E-ISSN:21567085
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:A wide-field fluorescence microscope with a double-helix point spread function (PSF) is constructed to obtain the specimen’s three-dimensional distribution with a single snapshot. Spiral-phase-based computer-generated holograms (CGHs) are adopted to make the depth-of-field of the microscope adjustable. The impact of system aberrations on the double-helix PSF at high numerical aperture is analyzed to reveal the necessity of the aberration correction. A modified cepstrum-based reconstruction scheme is promoted in accordance with properties of the new double-helix PSF. The extended depth-of-field images and the corresponding depth maps for both a simulated sample and a tilted section slice of bovine pulmonary artery endothelial (BPAE) cells are recovered, respectively, verifying that the depth-of-field is properly extended and the depth of the specimen can be estimated at a precision of 23.4nm. This three-dimensional fluorescence microscope with a framerate-rank time resolution is suitable for studying the fast developing process of thin and sparsely distributed micron-scale cells in extended depth-of-field. 2017 Optical Society of America.
Number of references:32
Main heading:Optical transfer function
Controlled terms:Endothelial cells - Fluorescence - Fluorescence microscopy - Microscopes
Uncontrolled terms:Aberration correction - Computer generated holograms - Developing process - Double-helix point-spread functions - Extended depth of field - High numerical apertures - Three-dimensional fluorescence microscopy - Three-dimensional fluorescences
Classification code:461.9 Biology - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 931.4 Quantum Theory; Quantum Mechanics
Numerical data indexing:Size 2.34e-08m
DOI:10.1364/BOE.8.005493
Funding details: Number: 11474352, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61377008, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61522511, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 81427802, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: GM100156, Acronym: NIH, Sponsor: National Institutes of Health;
Funding text:This research was supported by the Natural Science Foundation of China (NSFC) (61522511, 81427802, 11474352, 61377008), the Natural Science Basic Research Plan in Shaanxi Province of China (Program No: 2016JZ020), and the National Institutes of Health Grant GM100156 to P. R. B.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<78>
Accession number:20172703873544
Title:Development of submicron high precision CFRP reflector
Authors:Xu, Liang (1); Xie, Yongjie (1); Ding, Jiaoteng (1); Wang, Yongjie (1); Ma, Zhen (1); Fan, Xuewu (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Xu, Liang(liangx@opt.ac.cn)
Source title:27th International Symposium on Space Terahertz Technology, ISSTT 2016
Abbreviated source title:Int. Symp. Space Terahertz Technol., ISSTT
Part number:1 of 1
Issue title:27th International Symposium on Space Terahertz Technology, ISSTT 2016
Issue date:2017
Publication year:2017
Language:English
Document type:Conference article (CA)
Conference name:27th International Symposium on Space Terahertz Technology, ISSTT 2016
Conference date:April 12, 2016 - April 15, 2016
Conference location:Nanjing, China
Conference code:127936
Sponsor:Oxford Instruments; Rohde and Schwarz; Sumitomo Heavy Industries
Publisher:International Symposium on Space Terahertz Technology
Abstract:Antenna gain affected by reflector surface figure accuracy and dimension stability directly, so one of the most important tasks is how to ensure the surface precision and dimensional stability. It is hard to control surface precision for springback of metal, so carbon fibre reinforced polymer (CFRP) usually be adopted to fabricate high precision reflector. With the rapid development of electronic technology, especially millimetre and terahertz wave technology, the precision of reflector needed increasingly. A Φ300mm CFRP flat reflector is developed for process study. In order to improve the thermal stability, a special "all CFRP" structure adopted. Optical replica process used to realize surface modification of CFRP reflector blank, final surface figure accuracy RMS reaching 0.1μm, and roughness Ra reaching 2nm. Further thermal stability tests show that the thermal stability reaching 13nm/C. AΦ500mm CFRP aspherical reflector also fabricated, and surface accuracy reaching 0.4μm. The study is of certain reference value for the development of CFRP reflector in millimetre wave and terahertz wave band.
Number of references:5
Main heading:Terahertz waves
Controlled terms:Antennas - Carbon fiber reinforced plastics - Carbon fibers - Fiber reinforced plastics - Millimeter waves - Reflection - Stability - Surface treatment - Thermodynamic stability
Uncontrolled terms:Carbon fibre reinforced polymer - Dimension stability - Electronic technologies - Millimetre waves - Reflector surfaces - Surface accuracy - Surface figure accuracies - Surface precision
Classification code:641.1 Thermodynamics - 711 Electromagnetic Waves - 804 Chemical Products Generally - 817.1 Polymer Products
Numerical data indexing:Size 1.00e-07m, Size 2.00e-09m, Size 4.00e-07m
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<79>
Accession number:20171603576231
Title:Optimization of the doughnut-shaped depletion spot in stimulated emission depletion microscopy
Authors:Cai, Yanan (1); Wang, Zhaojun (1); Liang, Yansheng (1); Yan, Shaohui (1); Dan, Dan (1); Yao, Baoli (1); Lei, Ming (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China
Corresponding author:Lei, Ming(leiming@opt.ac.cn)
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:37
Issue:3
Issue date:March 10, 2017
Publication year:2017
Article number:0318009
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Stimulated emission depletion microscopy (STED) is a powerful far-field technique for super-resolution optical imaging with a few tens even a few of nanometer spatial resolution, thus it is extensively used in investigation of cell biology and so on. The spatial resolution of STED highly depends on the intensity distribution of the doughnut-shaped depletion spot, near the objective focus. The polarization state of field has influence on focal intensity focused with high numerical aperture objective. The off-axis aberrations of microscopic system bring serious damage to the central symmetry of doughnut-shaped depletion spot. The influences of different polarization states of incidence vortex beam and aberrations of coma and astigmatism is of the optical system on the intensity profiles of doughnut-shaped depletion spot simulated by using the vectorial diffraction theory. In the experiment, the deformed depletion spot is optimized by utilizing a pure phase spatial light modulator to correct the aberrations of the optical system. A fluorescent nanoparticle is used as a probe to scan the focal region to obtain a high spatial resolution of intensity distribution. The measured results are in good agreement with those predicted by the vectorial diffraction theory. 2017, Chinese Lasers Press. All right reserved.
Number of references:33
Page count:9
Main heading:Aberrations
Controlled terms:Cytology - Diffraction - Diffraction gratings - Image resolution - Light modulation - Light modulators - Microscopic examination - Optical resolving power - Optical systems - Polarization - Stimulated emission
Uncontrolled terms:Fluorescent nanoparticles - High numerical aperture objective - Off-axis - Phase spatial light modulator - Spatial light modulators - Stimulated emission depletion microscopy - Super resolution - Vectorial diffraction theories
Classification code:461.2 Biological Materials and Tissue Engineering - 711 Electromagnetic Waves - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 746 Imaging Techniques
DOI:10.3788/AOS201737.0318009
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<80>
Accession number:20180404671142
Title:A Multispectral target tracking algorithm based on particle filter
Authors:Gao, Zhen-Zhen (1, 2); Zhang, Geng (1); Hu, Bing-Liang (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104622K
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Target detection and tracking important in many applications including intelligent monitoring system, defense system and terminal guidance system. Aiming to solve the problem of simulated target tracking, this paper proposes an adaptive algorithm which uses the fusion of the spectral and morphological features of multispectral image to realize the target tracking based on the Particle Filter. Firstly, the target area is manually initialized in the multispectral image and the spectral and texture features of the target are extracted. Secondly, we build the adaptive tracking model of multiple features under the framework of Particle Filter. We validate the effectiveness of the proposed approach on the MATLAB platform. The results show that the proposed approach achieves accurate and stable multispectral target tracking in complex scenes by improving the efficiency of particles usage under defective tracking conditions, which is of great theoretical and practical values for the application of multispectral target tracking technology. 2017 SPIE.
Number of references:8
Main heading:Target tracking
Controlled terms:Adaptive algorithms - Adaptive optics - Bandpass filters - Clutter (information theory) - Monitoring - Monte Carlo methods
Uncontrolled terms:Feature extract - Multi-spectral - Particle filter - Spectral angles - Texture features
Classification code:703.2 Electric Filters - 716.1 Information Theory and Signal Processing - 741.1 Light/Optics - 922.2 Mathematical Statistics
DOI:10.1117/12.2284791
Funding details: Number: -, Acronym: CAAS, Sponsor: Chinese Academy of Agricultural Sciences;Number: 61405239, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11327303, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61501456, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is supported by the National Natural Science Foundation of China (No. 61501456, NO.11327303 and NO.61405239), International Science &Technology Cooperation Program of china and "Light of West China" Program of Chinese Academy of Science.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<81>
Accession number:20172903947104
Title:OpenMRE: A Numerical Platform for MRE Study
Authors:Li, Bing Nan (1); Shan, Xiang (2); Xiang, Kui (3); Kobayashi, Etsuko (4); Wang, Meng (5); Li, Xuelong (6)
Author affiliation:(1) Department of Biomedical Engineering, Hefei University of Technology, Hefei 230009, China.(e-mail: bingoon@ieee.org); (2) Department of Biomedical Engineering, Hefei University of Technology, Hefei 230009, China.; (3) School of Automation, Wuhan University of Technology, Wuhan 430070, China.; (4) Department of Precision Engineering, University of Tokyo, Tokyo 113-8656, Japan.; (5) School of Computer Science and Information Engineering, Hefei University of Technology, Hefei 230009, China.; (6) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China.
Source title:IEEE Transactions on Systems, Man, and Cybernetics: Systems
Abbreviated source title:IEEE Trans. Syst. Man Cybern. Syst.
Issue date:July 6, 2017
Publication year:2017
Language:English
ISSN:21682216
E-ISSN:21682232
Document type:Article in Press
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Magnetic resonance elastography (MRE) offers a noninvasive solution to visualize the mechanical properties of soft tissue, but the study suffers from expensive magnetic resonance scanning. Moreover, translating MRE wave images into soft tissue elasticity is a nontrivial issue for clinical professionals and healthcare practitioners. An interactive system--OpenMRE--is thus developed with the aid of ImageJ for numerical MRE study. It is comprised of two comparatively independent toolkits, namely MREA for simulation and MREP for interpretation. MREA mainly deals with the forward problem of MRE, and provides a numerical platform to determine the propagation and distribution of specially designed elastic wave. It is possible to numerically study some state-of-the-art paradigms including multisource and multifrequency MRE. The resultant wave images are interpretable in MREP that is designed for the inverse problem of MRE. It consists of the algorithms for phase unwrapping, directional filtering, and elasticity reconstruction. In a word, OpenMRE offers the MRE community a convenient and well-functioning system for interactive MRE study.
IEEE
Main heading:Inverse problems
Controlled terms:Bioinformatics - Biomechanics - Computer simulation - Elastic waves - Elasticity - Magnetic resonance imaging - Magnetism - Medical imaging - Numerical models - Resonance - Tissue - Wave propagation
Uncontrolled terms:Biological tissues - Directional filtering - Elasticity reconstruction - Elastography - Forward problem - Interactive system - Magnetic resonance elastography - Phase unwrapping
Classification code:461 Bioengineering and Biology - 701.2 Magnetism: Basic Concepts and Phenomena - 723.5 Computer Applications - 746 Imaging Techniques - 921 Mathematics - 931.1 Mechanics
DOI:10.1109/TSMC.2017.2717481
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<82>
Accession number:20173003967968
Title:Diagnostic Equipment Calibration Platform Based on Sub-Picosecond Ultraviolet Laser
Authors:Yuan, Zheng (1); Deng, Keli (1); Li, Jin (1); Yang, Zhiwen (1); Wu, Bingjing (2); Chen, Tao (1); Deng, Bo (1); Qi, Wenbo (2); Wang, Qiangqiang (1); Cao, Zhurong (1); Liu, Shenye (1)
Author affiliation:(1) Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang; Sichuan; 621900, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:37
Issue:6
Issue date:June 10, 2017
Publication year:2017
Article number:0614002
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:In order to make full use of output characteristics of high energy, ultrashort pulse width of sub-picosecond ultraviolet lasers, a calibration platform of laser inertial confinement fusion(ICF) diagnostic equipment is established. The calibration platform has such functions as laser energy measurement, optical transmission delay, beam splitting and geometric decline, and sequential optical pulse generator, which can provide the structural support and high vacuum operating environment for the relevant diagnostic equipment. The mechanical and optical design is developed in all parts of the platform, and the platform is used to calibrate the X-ray diode response time, X-ray streak camera sweep speed, X-ray framing camera dynamic range and so on. The results show that the calibration platform matches the sub-picosecond ultraviolet calibration source well, and can achieve precise calibration of various diagnostic equipments. 2017, Chinese Lasers Press. All right reserved.
Number of references:11
Main heading:Ultraviolet lasers
Controlled terms:Calibration - High energy lasers - Inertial confinement fusion - Lasers - Light transmission - Optical design - X rays
Uncontrolled terms:Diagnostic equipment - Dynamic range - Operating environment - Output characteristics - Sub-picosecond - Sweep speed - X-ray framing camera - X-ray streak cameras
Classification code:741.1 Light/Optics - 744.1 Lasers, General - 932.1 High Energy Physics - 932.2.1 Fission and Fusion Reactions
DOI:10.3788/AOS201737.0614002
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<83>
Accession number:20171703607568
Title:Athermalization of infrared dual field optical system based on wavefront coding
Authors:Kai, Jiang (1); Bo, Jiang (1); Kai, Liu (1); Peipei, Yan (1); Jing, Duan (1); Qiusha, Shan (1)
Author affiliation:(1) Photoelectric Track and Measurement Technology Research Department, Xi'an Institute of Optics and Precision Mechanics, CAS, Shaanxi Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102563X
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:Wavefront coding is a technology which combination of the optical design and digital image processing. By inserting a phase mask closed to the pupil plane of the optical system, the wavefront of the system is re-modulated. And the depth of focus is extended consequently. In reality the idea is same as the athermalization theory of infrared optical system. In this paper, an uncooled infrared dual field optical system with effective focal as 38mm/19mm, F number as 1.2 of both focal length, operating wavelength varying from 8μm to 12μm was designed. A cubic phase mask was used at the pupil plane to re-modulate the wavefront. Then the performance of the infrared system was simulated with CODEV as the environment temperature varying from -40°C to 60°C. MTF curve of the optical system with phase mask are compared with the outcome before using phase mask. The result show that wavefront coding technology can make the system not sensitive to thermal defocus, and then realize the athermal design of the infrared optical system. 2017 SPIE.
Number of references:8
Main heading:Optical systems
Controlled terms:C (programming language) - Codes (symbols) - Image coding - Light polarization - Optical data processing - Optical design - Photonics - Wavefronts
Uncontrolled terms:Athernalization - Depth of focus - Environment temperature - Infrared optical systems - Infrared systems - Operating wavelength - Uncooled Infrared - Wave-front coding
Classification code:723.1.1 Computer Programming Languages - 723.2 Data Processing and Image Processing - 741.1 Light/Optics - 741.3 Optical Devices and Systems
Numerical data indexing:Size 8.00e-06m to 1.20e-05m, Temperature 2.33e+02K to 3.33e+02K
DOI:10.1117/12.2257873
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<84>
Accession number:20172403763410
Title:Visibility enhancement of hazy images using polarimetric dehazing method based on stokes parameters
Authors:Liang, Jian (1, 2); Zhang, Wenfei (1, 2); Ren, Liyong (1); Ju, Haijuan (1, 2); Bai, Zhaofeng (1); Qu, Enshi (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Ren, Liyong(renliy@opt.ac.cn)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F43-CLEO_AT 2017
Part number:1 of 1
Issue title:CLEO: Applications and Technology, CLEO_AT 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:CLEO: Applications and Technology, CLEO_AT 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:135878
Publisher:OSA - The Optical Society
Abstract:Polarimetric dehazing methods are proven very effective in enhancing the contrast and visibility of images captured in hazy weather. In this paper, we analyze the capability of visibility enhancement in experiments. 2017 OSA.
Number of references:6
Page count:2
Main heading:Image enhancement
Controlled terms:Demulsification - Polarimeters - Visibility
Uncontrolled terms:Dehazing - Stokes parameters
Classification code:741.2 Vision - 802.3 Chemical Operations - 941.3 Optical Instruments
DOI:10.1364/CLEO_AT.2017.AM4B.5
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<85>
Accession number:20173504090068
Title:Comparative analysis of direct torque control and DTC based on sliding mode control for PMSM drive
Authors:Meng, Lingnan (1, 2); Yang, Xiaojun (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100080, China
Source title:Proceedings of the 29th Chinese Control and Decision Conference, CCDC 2017
Abbreviated source title:Proc. Chin. Control Decis. Conf., CCDC
Part number:1 of 1
Issue title:Proceedings of the 29th Chinese Control and Decision Conference, CCDC 2017
Issue date:July 12, 2017
Publication year:2017
Pages:736-741
Article number:7978529
Language:English
ISBN-13:9781509046560
Document type:Conference article (CA)
Conference name:29th Chinese Control and Decision Conference, CCDC 2017
Conference date:May 28, 2017 - May 30, 2017
Conference location:Chongqing, China
Conference code:129162
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:This paper firstly introduces the mathematical equations of PMSM (permanent magnet synchronous motor), an overview of direct torque control (DTC) and a DTC based on sliding mode control for PMSM, and then builds PMSM control system simulation models with above two methods in MATLAB /Simulink environment. Finally, we got the starting response, torque ripple and load perturbation responses of DTC and SMC-DTC by comparison the simulation results of the two models. ？ 2017 IEEE.
Number of references:10
DOI:10.1109/CCDC.2017.7978529
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<86>
Accession number:20172103691508
Title:Ranging method based on linear frequency modulated laser
Authors:Guo, Na (1, 2); Gao, Cunxiao (1); Xue, Mingyuan (1, 2); Niu, Linquan (1); Zhu, Shaolan (1); Feng, Li (1); He, Haodong (1); Cao, Zongying (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 101408, China
Corresponding author:Gao, Cunxiao(cxgao@opt.ac.cn)
Source title:Laser Physics
Abbreviated source title:Laser Phys.
Volume:27
Issue:6
Issue date:June 2017
Publication year:2017
Article number:065108
Language:English
ISSN:1054660X
E-ISSN:15556611
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:In this paper, we obtain target information about the distance between laser sources and targets based on the linear frequency modulated laser ranging system. We designed a specific experimental scheme for the ranging of linear frequency modulated semiconductor lasers based on heterodyne ranging experiment. Ranging precision can reach micron dimension and range resolution is about 0.002 m within the range of 1-40 m. The ranging method in this paper can apply to laser radars which could be used to capture target information, which is very helpful for tracking, identifying and extracting targets. 2017 Astro Ltd.
Number of references:18
Main heading:Frequency modulation
Controlled terms:Chirp modulation - Fiber lasers - Range finding - Semiconductor lasers
Uncontrolled terms:Experimental scheme - Laser sources - Linear frequency modulated - Linear modulations - Micron dimension - Range resolution - Ranging precision - Target information
Classification code:716 Telecommunication; Radar, Radio and Television - 744.4 Solid State Lasers - 744.4.1 Semiconductor Lasers
Numerical data indexing:Size 1.00e+00m to 4.00e+01m, Size 2.00e-03m
DOI:10.1088/1555-6611/aa6da3
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<87>
Accession number:20172403763268
Title:Multi-channel phase-sensitive amplification in nonlinear waveguides
Authors:Zhang, Y. (1); Reimer, C. (1); Wu, J. (1); Roztocki, P. (1); Wetzel, B. (1, 2); Little, B.E. (3); Chu, S.T. (4); Moss, D.J. (5); Kues, M. (1, 6); Morandotti, R. (1, 7)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) Department of Physics and Astronomy, University of Sussex, Falmer, Brighton; BN1 9QH, United Kingdom; (3) State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Science, Xi'an, China; (4) City University of Hong Kong, Department of Physics and Material Science, Tat Chee Avenue, Hong Kong; (5) Center for Micro-Photonics, Swinburne University of Technology, Hawthorne; VIC; 3122, Australia; (6) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (7) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, India
Corresponding author:Zhang, Y.(yanbing.zhang@emt.inrs.ca)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F43-CLEO_AT 2017
Part number:1 of 1
Issue title:CLEO: Applications and Technology, CLEO_AT 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:CLEO: Applications and Technology, CLEO_AT 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:135878
Publisher:OSA - The Optical Society
Abstract:We demonstrate on-chip multi-channel phase-sensitive amplification in a nonlinear waveguide, achieving 5 dB net gain and 15 dB extinction ratio. We show the manipulation of individual channels in a multi-channel scheme through controlling the initial phases. 2017 OSA.
Number of references:11
Page count:2
Main heading:Waveguides
Uncontrolled terms:Extinction ratios - Initial phasis - Multi channel - Net gain - Nonlinear waveguides - On chips
Classification code:714.3 Waveguides
Numerical data indexing:Decibel 1.50e+01dB, Decibel 5.00e+00dB
DOI:10.1364/CLEO_AT.2017.JTh2A.91
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<88>
Accession number:20171703607530
Title:Synchronous acquisition method based on feature recognition of sequence images in online vision inspection
Authors:Xin, Jiang (1, 2); Hua, Li (2); Jie, Liu (1, 2)
Author affiliation:(1) University of Chinese Academy of Sciences, Beijing; 100049, China; (2) Xi'an Institute of Optics and Precision Mechanics of CAS, 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:1025630
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:In order to meet the requirements of synchronous image acquisition in online industrial vision inspection, a new method based on image feature recognition is proposed. According to the method, the spatial characteristic information of sequence images has been calculated, and an algorithm under multi-constrained conditions which based on the trend of feature values of sequence images is established. The synchronous target image in online inspection is acquired by the trigger signal which was obtained by the algorithm under the condition of no dependence on external attachment. The method does not need to rely on the external position feedback device, and reduces the hardware cost. The algorithm has a better synchronization precision and adaptability, and has been successfully applied in practice. 2017 SPIE.
Number of references:6
Main heading:Image acquisition
Controlled terms:Inspection - Photonics
Uncontrolled terms:Constrained conditions - Feature recognition - Position feedback device - Sequence images - Spatial characteristics - Synchronization precision - Synchronous acquisition - Vision inspection
Classification code:723 Computer Software, Data Handling and Applications - 741.1 Light/Optics
DOI:10.1117/12.2257657
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<89>
Accession number:5190322
Title:On-chip generation of high-dimensional entangled quantum states and their coherent control
Authors:Kues, Michael (1, 2); Reimer, Christian (1); Roztocki, Piotr (1); Cortés, Luis Romero (1); Sciara, Stefania (1, 3); Wetzel, Benjamin (1, 4); Zhang, Yanbing (1); Cino, Alfonso (3); Chu, Sai T. (5); Little, Brent E. (6); Moss, David J. (7); Caspani, Lucia (8, 9); Aza？a, José (1); Morandotti, Roberto (1, 10, 11)
Author affiliation:(1) Institut National de la Recherche Scientifique - Centre énergie, Matériaux et Télécommunications (INRS-EMT), 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) Department of Energy, Information Engineering and Mathematical Models, University of Palermo, Palermo, Italy; (4) School of Mathematical and Physical Sciences, University of Sussex, Falmer, Brighton; BN1 9RH, United Kingdom; (5) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, Hong Kong; (6) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China; (7) Centre for Micro Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (8) Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow; G1 1RD, United Kingdom; (9) Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh; EH14 4AS, United Kingdom; (10) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China; (11) National Research University of Information Technologies, Mechanics and Optics, St Petersburg, Russia
Source title:Nature
Abbreviated source title:Nature
Volume:546
Issue:7660
Issue date:June 28, 2017
Publication year:2017
Pages:622-626
Language:English
ISSN:00280836
E-ISSN:14764687
CODEN:NATUAS
Document type:Journal article (JA)
Publisher:Nature Publishing Group, Houndmills, Basingstoke, Hampshire, RG21 6XS, United Kingdom
Abstract:Optical quantum states based on entangled photons are essential for solving questions in fundamental physics and are at the heart of quantum information science1. Specifically, the realization of high-dimensional states (D-level quantum systems, that is, qudits, with D > 2) and their control are necessary for fundamental investigations of quantum mechanics2, for increasing the sensitivity of quantum imaging schemes3, for improving the robustness and key rate of quantum communication protocols4, for enabling a richer variety of quantum simulations5, and for achieving more efficient and error-tolerant quantum computation6. Integrated photonics has recently become a leading platform for the compact, cost-efficient, and stable generation and processing of non-classical optical states7. However, so far, integrated entangled quantum sources have been limited to qubits (D = 2)8-11. Here we demonstrate on-chip generation of entangled qudit states, where the photons are created in a coherent superposition of multiple high-purity frequency modes. In particular, we confirm the realization of a quantum system with at least one hundred dimensions, formed by two entangled qudits with D = 10. Furthermore, using state-of-the-art, yet off-the-shelf telecommunications components, we introduce a coherent manipulation platform with which to control frequency-entangled states, capable of performing deterministic high-dimensional gate operations. We validate this platform by measuring Bell inequality violations and performing quantum state tomography. Our work enables the generation and processing of high-dimensional quantum states in a single spatial mode. 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.
Number of references:45
Controlled terms:electronic equipment - imaging method - operations technology - physics - quantum mechanics - telecommunication - tomography
Classification code:901 Geobase: Related Topics
DOI:10.1038/nature22986
Funding details: Number: XDB24030300, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;
Funding text:This work was supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) through the Steacie, Strategic, Discovery and Acceleration Grants Schemes, by the MESI PSRSIIRI Initiative in Quebec, by the Canada Research Chair Program and by the Australian Research Council Discovery Projects scheme (DP150104327). C.R. and P.R. acknowledge the support of NSERC Vanier Canada Graduate Scholarships. M.K. acknowledges funding from the European Union's Horizon 2020 Research and Innovation programme under the Marie Sklodowska- Curie grant agreement number 656607. S.T.C. acknowledges support from the CityU APRC programme number 9610356. B.E.L. acknowledges support from the Strategic Priority Research Program of the Chinese Academy of Sciences (grant number XDB24030300). B.W. acknowledges support from the People Programme (Marie Curie Actions) of the European Union's FP7 Programme under REA grant agreement INCIPIT (PIOF-GA-2013-625466). L.C. acknowledges support from the People Programme (Marie Curie Actions) of the European Union's FP7 Programme under REA Grant Agreement number 627478 (THREEPLE). R.M. acknowledges additional support by the Government of the Russian Federation through the ITMO Fellowship and Professorship Program (grant 074-U 01) and from the 1000 Talents Sichuan Program. We thank R. Helsten and M. Islam for technical insights; A. Tavares, T. Hansson and A. Bruhacs for discussions; T. A. Denidni and S. O. Tatu for lending us some of the required experimental equipment; P. Kung from QPS Photronics for help and the use of processing equipment; as well as Quantum Opus and N. Bertone of OptoElectronics Components for their support and for providing us with state-of-the-art photon detection equipment.
Database:GEOBASE
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<90>
Accession number:20181705046884
Title:Multispectral image compression algorithm based on spectral clustering and wavelet transform
Authors:Huang, Rong (1, 2); Qiao, Weidong (2); Yang, Jianfeng (2); Wang, Hong (1, 2); Xue, Bin (2); Tao, Jinyou (2)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710068, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10605
Part number:1 of 1
Issue title:LIDAR Imaging Detection and Target Recognition 2017
Issue date:2017
Publication year:2017
Article number:106051X
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510617063
Document type:Conference article (CA)
Conference name:LIDAR Imaging Detection and Target Recognition 2017
Conference date:July 23, 2017 - July 25, 2017
Conference location:Changchun, China
Conference code:133763
Sponsor:Chinese Academy of Engineering; Chinese Society for Optical Engineering (CSOE); National Natural Science Foundation of China
Publisher:SPIE
Abstract:In this paper, a method based on spectral clustering and the discrete wavelet transform (DWT) is proposed, which is based on the problem of the high degree of space-time redundancy in the current multispectral image compression algorithm. First, the spectral images are grouped by spectral clustering methods, and the clusters of similar heights are grouped together to remove the redundancy of the spectra. Then, wavelet transform and coding of the class representative are performed, and the space redundancy is eliminated, and the difference composition is applied to the Karhunen-Loeve transform (KLT) and wavelet transform. Experimental results show that with JPEG2000 and upon KLT + DWT algorithm, compared with the method has better peak signal-to-noise ratio and compression ratio, and it is suitable for compression of different spectral bands. 2017 SPIE.
Number of references:9
Main heading:Image compression
Controlled terms:Clustering algorithms - Compaction - Digital image storage - Discrete wavelet transforms - Image coding - Optical radar - Principal component analysis - Redundancy - Signal reconstruction - Signal to noise ratio - Spectroscopy - Wavelet transforms
Uncontrolled terms:DWT algorithms - Karhunen Loeve Transform (KLT) - Multispectral images - Multispectral-image compression - Peak signal to noise ratio - Spectral clustering - Spectral clustering methods - Spectral images
Classification code:716.1 Information Theory and Signal Processing - 716.2 Radar Systems and Equipment - 722.1 Data Storage, Equipment and Techniques - 903.1 Information Sources and Analysis - 921.3 Mathematical Transformations - 922.2 Mathematical Statistics
DOI:10.1117/12.2292014
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<91>
Accession number:20171403518577
Title:Study of imaging fiber bundle coupling technique in IR system
Authors:Chen, Guoqing (1, 2); Yang, Jianfeng (2); Yan, Xingtao (2); Song, Yansong (1, 2)
Author affiliation:(1) University of Chinese Academy of Sciences, China; (2) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Science, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10250
Part number:1 of 1
Issue title:International Conference on Optical and Photonics Engineering, icOPEN 2016
Issue date:2017
Publication year:2017
Article number:102500S
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510610019
Document type:Conference article (CA)
Conference name:International Conference on Optical and Photonics Engineering, icOPEN 2016
Conference date:September 26, 2016 - September 30, 2016
Conference location:Chengdu, China
Conference code:126841
Sponsor:International Association of Computer Science and Information Technology; Sichuan Institute of Electronics
Publisher:SPIE
Abstract:Due to its advantageous imaging characteristic and banding flexibility, imaging fiber bundle can be used for line-plane-switching push-broom infrared imaging. How to precisely couple the fiber bundle in the optics system is the key to get excellent image for transmission. After introducing the basic system composition and structural characteristics of the infrared systems coupled with imaging fiber bundle, this article analysis the coupling efficiency and the design requirements of its relay lenses with the angle of the numerical aperture selecting in the system and cold stop matching of the refrigerant infrared detector. For an actual need, one relay coupling system has been designed with the magnification is -0.6, field of objective height is 4mm, objective numerical aperture is 0.15, which has excellent image quality and enough coupling efficiency. In the end, the push broom imaging experiment is carried out. The results show that the design meets the requirements of light energy efficiency and image quality. This design has a certain reference value for the design of the infrared fiber optical system. 2017 COPYRIGHT SPIE.
Number of references:9
Main heading:Thermography (imaging)
Controlled terms:Energy efficiency - Fibers - Image quality - Light - Optical systems - Photonics
Uncontrolled terms:Cold stop - Imaging fiber bundle - Ir systems - Numerical aperture - Relay lens
Classification code:525.2 Energy Conservation - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.1 Photography
Numerical data indexing:Size 4.00e-03m
DOI:10.1117/12.2266955
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<92>
Accession number:20181705046990
Title:Electro-optical design of a long slit streak tube
Authors:Tian, Liping (1, 2, 3); Tian, Jinshou (1, 3); Wen, Wenlong (1); Chen, Ping (1); Wang, Xing (1); Hui, Dandan (1, 2); Wang, Junfeng (1)
Author affiliation:(1) Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10605
Part number:1 of 1
Issue title:LIDAR Imaging Detection and Target Recognition 2017
Issue date:2017
Publication year:2017
Article number:106050O
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510617063
Document type:Conference article (CA)
Conference name:LIDAR Imaging Detection and Target Recognition 2017
Conference date:July 23, 2017 - July 25, 2017
Conference location:Changchun, China
Conference code:133763
Sponsor:Chinese Academy of Engineering; Chinese Society for Optical Engineering (CSOE); National Natural Science Foundation of China
Publisher:SPIE
Abstract:A small size and long slit streak tube with high spatial resolution was designed and optimized. Curved photocathode and screen were adopted to increase the photocathode working area and spatial resolution. High physical temporal resolution obtained by using a slit accelerating electrode. Deflection sensitivity of the streak tube was improved by adopting two-folded deflection plates. The simulations indicate that the photocathode effective working area can reach 30mm × 5mm. The static spatial resolution is higher than 40lp/mm and 12lp/mm along scanning and slit directions respectively while the physical temporal resolution is higher than 60ps. The magnification is 0.75 and 0.77 in scanning and slit directions. And also, the deflection sensitivity is as high as 37mm/kV. The external dimension of the streak tube are only '.74mm×231mm. Thus, it can be applied to laser imaging radar system for large field of view and high range precision detection. 2017 SPIE.
Number of references:8
Main heading:Optical radar
Controlled terms:Image resolution - Optical design - Photocathodes - Radar systems - Streak cameras - Tubes (components)
Uncontrolled terms:Deflection sensitivities - High spatial resolution - Large field of views - Laser imaging - Slit streak tubes - Spatial resolution - Streak tubes - Temporal resolution
Classification code:619.1 Pipe, Piping and Pipelines - 716.2 Radar Systems and Equipment - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment
Numerical data indexing:Size 5.00e-03m, Time 6.00e-11s
DOI:10.1117/12.2295869
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<93>
Accession number:20173504083027
Title:Entanglement generation with integrated optical frequency comb sources
Authors:Reimer, Christian (1); Kues, Michael (1, 2); Roztocki, Piotr (1); Wetzel, Benjamin (1, 3); Bromberg, Yaron (4); Little, Brent E. (5); Chu, Sai T. (6); Moss, David J. (7); Caspani, Lucia (8); Morandotti, Roberto (1)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) Department of Physics and Astronomy, University of Sussex, Falmer, Brighton; BN1 9RH, United Kingdom; (4) Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem; 91904, Israel; (5) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, China; (6) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong; (7) Centre for Micro Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (8) Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow; G4 0NW, United Kingdom
Corresponding author:Morandotti, Roberto
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F54-NLO 2017
Part number:1 of 1
Issue title:Nonlinear Optics, NLO 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:Nonlinear Optics, NLO 2017
Conference date:July 17, 2017 - July 21, 2017
Conference location:Waikoloa, HI, United states
Conference code:136898
Sponsor:AMERICAN ELEMENTS; KMLabs Inc; OSA
Publisher:OSA - The Optical Society
Abstract:We show that integrated optical frequency comb sources, based on on-chip microring resonators, can be used as versatile sources of two- and multi-photon entangled states when operated well below their optical parametric oscillation threshold. OSA 2017.
Number of references:15
Page count:2
Main heading:Nonlinear optics
Controlled terms:Natural frequencies - Optical materials - Quantum entanglement
Uncontrolled terms:Entanglement generation - Microring resonator - Multi-photon entangled state - On chips - Optical frequency comb sources - Optical parametric oscillations
Classification code:741.1.1 Nonlinear Optics - 741.3 Optical Devices and Systems - 931.4 Quantum Theory; Quantum Mechanics
DOI:10.1364/NLO.2017.NM1A.5
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<94>
Accession number:20180504692894
Title:Assessment of image quality for spot-detecting camera with anisotropic Gaussian fitting
Authors:Li, Kun (1); Zhao, Jian-Ke (1); Chen, Yong-Quan (1); Xue, Xun (1); Duan, Ya-Xuan (1); Cao, Kun (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China
Corresponding author:Li, Kun(wllk-19821118@163.com)
Source title:Guangxue Jingmi Gongcheng/Optics and Precision Engineering
Abbreviated source title:Guangxue Jingmi Gongcheng
Volume:25
Issue:12
Issue date:December 1, 2017
Publication year:2017
Pages:3187-3194
Language:Chinese
ISSN:1004924X
CODEN:GJGOF4
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences
Abstract:To evaluate quantitatively the image quality of a spot-detecting camera, a 2D anisotropic Gaussian fitting method was proposed. A spot-detecting camera was used to collect the infinity point target coming from a star simulator, and a certain area of energy distribution was obtained. Based on the correlation of the Gaussian energy distribution and the original distribution, this energy distribution was used in anisotropic Gaussian fitting to solve the parameters such as Gaussian radius and anisotropic factor. Then, the size of 80% of the energy was obtained by numerical integration. The experimental results show that the background threshold and anisotropic factor are optimized automatically and the influence of the noise on test results is reduced since the correlation is introduced. Moreover, the introduction of anisotropic factors, evaluation of pixel-phase error and the effect of optical system aberration on the imaging quality of the camera can be used as the testing condition criterion for defocused spots. The experimental results show that the repeatability of equivalent area circle diameter for the defocused spots is 0.15 pixel under the crisscross-shaped condition and that is 0.19 pixel under the farmland-shaped condition, respectively. The proposed method implements the defocused spot test by spot-detecting cameras, and also controls better imaging quality. 2017, Science Press. All right reserved.
Number of references:12
Main heading:Image quality
Controlled terms:Anisotropy - Cameras - Correlation methods - Gaussian distribution - Optical systems - Pixels - Quality control
Uncontrolled terms:Anisotropic factor - Background threshold - Energy distributions - Gaussian energy distribution - Gaussian fitting - Numerical integrations - Pixel phase - Testing conditions
Classification code:741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 913.3 Quality Assurance and Control - 922.2 Mathematical Statistics - 931.2 Physical Properties of Gases, Liquids and Solids
Numerical data indexing:Percentage 8.00e+01%
DOI:10.3788/OPE.20172512.3187
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<95>
Accession number:20163502755891
Title:A novel strategy to prepare 2D g-C
Authors:Miao, Hui (1, 2, 3); Zhang, Guowei (1); Hu, Xiaoyun (1, 3); Mu, Jianglong (1); Han, Tongxin (1); Fan, Jun (4); Zhu, Changjun (6); Song, Lixun (6); Bai, Jintao (1, 3); Hou, Xun (2, 3, 5)
Author affiliation:(1) School of Physics, Northwest University, Xi'an; 710069, China; (2) Institute of Photonics & Photon-Technology, Northwest University, Xi'an; 710069, China; (3) National Photoelectric Technology and Functional Materials & Application of Science and Technology International Cooperation Base, Northwest University, Xi'an; 710069, China; (4) School of Chemical Engineering, Northwest University, Xi'an; 710069, China; (5) State Key Laboratory of Transient Optics and Technology, Xi'an Institute of Optics & Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710068, China; (6) School of Science, Xi'an Polytechnic University, Xi'an; 710048, China
Corresponding author:Hu, Xiaoyun(hxy3275@nwu.edu.cn)
Source title:Journal of Alloys and Compounds
Abbreviated source title:J Alloys Compd
Volume:690
Issue date:2017
Publication year:2017
Pages:669-676
Language:English
ISSN:09258388
CODEN:JALCEU
Document type:Journal article (JA)
Publisher:Elsevier Ltd
Abstract:Herein, 2D g-C
Number of references:24
Main heading:Thin films
Controlled terms:Charge transfer - Electrochemistry - Electrolytes - Gas adsorption - Interfaces (materials) - Nanosheets
Uncontrolled terms:Charge separations - g-C3N4 - Indirect synthesis - Liquid exfoliations - Nitrogen adsorption desorption isotherms - Photocurrent response - Photoelectrochemical properties - Photoelectrochemicals
Classification code:702 Electric Batteries and Fuel Cells - 761 Nanotechnology - 801.4.1 Electrochemistry - 802.2 Chemical Reactions - 802.3 Chemical Operations - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 933 Solid State Physics - 951 Materials Science
DOI:10.1016/j.jallcom.2016.08.184
Funding details: Number: 20136101110009, Acronym: -, Sponsor: -;Number: 21476183, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 51372201, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work has been supported by the National Natural Science Foundation of China (Grant No. 21476183 , 51372201 ), and the Research Fund for the Doctoral Program of Higher Education (Grant No. 20136101110009 ).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<96>
Accession number:20175104545957
Title:Analysis of partial crystallization in Yb3+doped aluminophosphosilicate fiber preforms prepared with organic chelate precursor doping technique
Authors:Luo, Rong (1, 2); Li, Weinan (1); Hou, Chaoqi (1); Wang, Pengfei (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi’an; 710119, China; (2) University of Chinese Academy of Sciences (UCAS), Beijing; 100049, China
Source title:ECS Journal of Solid State Science and Technology
Abbreviated source title:ECS J. Solid State Sci. Technol.
Volume:6
Issue:4
Issue date:2017
Publication year:2017
Pages:P138-P143
Language:English
ISSN:21628769
E-ISSN:21628777
Document type:Journal article (JA)
Publisher:Electrochemical Society Inc.
Abstract:Yb3+doped aluminophosphosilicate fiber preforms have been prepared by modified chemical vapor deposition (MCVD) with organic chelate precursor doping technique (OCD). It was found that the flow ratio of Yb(thd)
Number of references:30
Main heading:Aluminum
Controlled terms:Chelation - Chemical vapor deposition - Electron probe microanalysis - Glass - Photoelectricity - Preforming - Silica
Uncontrolled terms:Characteristic peaks - Chelate precursor - Doping techniques - Etching process - Modified chemical vapor depositions - Partial crystallization - Structural modeling - X-ray photoelectric spectroscopy
Classification code:541.1 Aluminum - 701.1 Electricity: Basic Concepts and Phenomena - 801 Chemistry - 802.2 Chemical Reactions - 812.3 Glass
DOI:10.1149/2.0151704jss
Funding details: Number: 2015JM6315, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61675229, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61307046, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61138007, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The authors acknowledge the following projects financially supported by the National Natural Science Foundation of China (grant No. 61138007, No.61307046 and No. 61675229), Natural Science Basic Research Project in Shaanxi Province (2015JM6315) and West Young Scholars Program of the Chinese Academy of Sciences.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<97>
Accession number:20171703607610
Title:Modal analysis of collimation frame fabricated by titanium alloy
Authors:Zhang, Yongqiang (1, 2); Liu, Zhaohui (2); Li, Zhiguo (2)
Author affiliation:(1) University of Chinese, Academy of Sciences, China; (2) Xi'An Institute of Optics and Precision Mechanics CAS, GaoXin qu, XinXi road 17, Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102560C
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:Collimation frame is the key supporting component of Space two-dimensional turntable. Its stiffness characteristics are vital for the performance of turntable. In order to reduce weight and improve rigidity, a lightweight collimation frame is designed. Compared with some commonly used aerospace materials, titanium alloy is chosen as the material of collimation frame for its excellent advantages. Modal analysis of the collimation frame is realized by using finite element analysis software MSC. Patran/Nastran to verify whether the stiffness of frame meet the design requirements. The results of analysis show that the first natural frequency of collimation frame is 169.5Hz, which satisfies the design requirement of stiffness. Then, modal experiment is conducted to verify the correctness of the results obtained from finite element modal analysis. The results of experiment show that simulation and experiment results agree well, which further confirm the correctness of the finite element modal analysis. Therefore, it proves that the selection of material and the design of structure are feasible. 2017 SPIE.
Number of references:12
Main heading:Modal analysis
Controlled terms:Finite element method - Photonics - Stiffness - Titanium alloys
Uncontrolled terms:Collimation frame - Finite element analysis software - Finite element modal analysis - Material stiffness - Model analysis - Selection of materials - Stiffness characteristics - Two-dimensional turntables
Classification code:542.3 Titanium and Alloys - 741.1 Light/Optics - 921 Mathematics - 921.6 Numerical Methods - 951 Materials Science
Numerical data indexing:Frequency 1.70e+02Hz
DOI:10.1117/12.2268787
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<98>
Accession number:20170803379718
Title:Ground-based optical detection of low-dynamic vehicles in near-space
Authors:Jing, Nan (1, 2); Li, Chuang (1); Zhong, Peifeng (1, 2)
Author affiliation:(1) Chinese Academy of Sciences, Xi'an Institute of Optics and Precision Mechanics, Xi'an, China; (2) University of Chinese Academy of Sciences, Beijing, China
Corresponding author:Li, Chuang(lichuang@opt.ac.cn)
Source title:Optical Engineering
Abbreviated source title:Opt Eng
Volume:56
Issue:1
Issue date:January 1, 2017
Publication year:2017
Article number:014107
Language:English
ISSN:00913286
E-ISSN:15602303
CODEN:OPEGAR
Document type:Journal article (JA)
Publisher:SPIE
Abstract:Ground-based optical detection of low-dynamic vehicles in near-space is analyzed to detect, identify, and track high-altitude balloons and airships. The spectral irradiance of a representative vehicle on the entrance pupil plane of ground-based optoelectronic equipment was obtained by analyzing the influence of its geometry, surface material characteristics, infrared self-radiation, and the reflected background radiation. Spectral radiation characteristics of the target in both clear weather and complex meteorological weather were simulated. The simulation results show the potential feasibility of using visible-near-infrared (VNIR) equipment to detect objects in clear weather and long-wave infrared (LWIR) equipment to detect objects in complex meteorological weather. A ground-based VNIR and LWIR optoelectronic experimental setup is built to detect low-dynamic vehicles in different weather. A series of experiments in different weather are carried out. The experiment results validate the correctness of the simulation results. 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).
Number of references:42
Main heading:Distribution functions
Controlled terms:Atmospheric spectra - Infrared devices - Infrared radiation - Meteorological balloons - Object detection - Reflection - Space optics - Vehicles
Uncontrolled terms:Background radiation - Bi-directional scattering distribution functions - Bidirectional reflectance distribution functions - High-altitude balloons - Spectral irradiance - Spectral radiation characteristic - Transmittance distribution - Visible near-infrared
Classification code:443.2 Meteorological Instrumentation - 723.2 Data Processing and Image Processing - 741.1 Light/Optics - 922.1 Probability Theory
DOI:10.1117/1.OE.56.1.014107
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<99>
Accession number:20171203489690
Title:Effect of iodine (I
Authors:Guo, Quan (1, 2); Xu, Yantao (1, 2); Guo, Haitao (1, 3); Xiao, Xusheng (1); Lin, Changgui (4); Cui, Xiaoxia (1); Wang, Pengfei (1); Gao, Fei (1); Lu, Min (1); Peng, Bo (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and precision Mechanics, Chinese Academy of Science (CAS), Xi'an; Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences (UCAS), Beijing; 100049, China; (3) State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou; 510640, China; (4) Laboratory of Infrared Materials and Devices, The Research of Institution of Advanced Technologies of Ningbo University, Ningbo; Zhejiang; 315211, China
Corresponding author:Guo, Haitao(guoht_001@opt.ac.cn)
Source title:Journal of Non-Crystalline Solids
Abbreviated source title:J Non Cryst Solids
Volume:464
Issue date:May 15, 2017
Publication year:2017
Pages:81-88
Language:English
ISSN:00223093
CODEN:JNCSBJ
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:A serial (100 ？ x)Ge
Number of references:59
Main heading:Sulfur compounds
Controlled terms:Antimony compounds - Fluorescence - Germanium compounds - Glass - Glass transition - Infrared devices - Iodine - Iodine compounds - Metal ions - Optical properties - Rare earths - Refractive index - Structure (composition) - Thermodynamic properties
Uncontrolled terms:Bond energies - Chalcohalide glass - Doped glass - Glass network - Judd-ofelt analysis - Midinfrared - Peak values - Rare earth ions
Classification code:531.1 Metallurgy - 641.1 Thermodynamics - 741.1 Light/Optics - 802.3 Chemical Operations - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 812.3 Glass - 951 Materials Science
DOI:10.1016/j.jnoncrysol.2017.03.024
Funding details: Number: 2015JQ5141, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 2015-skllmd-05, Acronym: SCUT, Sponsor: South China University of Technology;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61475189, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61405241, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was financially supported by the West Light Foundation from Chinese Academy of Sciences (CAS) of China, the National Natural Science Foundation of China (61475189 and 61405241) and the Natural Science Basic Research Project in Shaanxi Province (2015JQ5141). The work was also funded by the State Key Laboratory of Luminescent Materials and Devices (South China University of Technology) (2015-skllmd-05).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<100>
Accession number:20171803628642
Title:Nonlinear optical response and applications of tin disulfide in the near- and mid-infrared
Authors:Yang, H.R. (1, 2); Liu, X.M. (1, 2, 3)
Author affiliation:(1) State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou; 310027, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) School of Physics and Electronic Science, Hunan University of Science and Technology, Xiangtan; 411201, China
Corresponding author:Liu, X.M.(liuxueming72@yahoo.com)
Source title:Applied Physics Letters
Abbreviated source title:Appl Phys Lett
Volume:110
Issue:17
Issue date:April 24, 2017
Publication year:2017
Article number:171106
Language:English
ISSN:00036951
CODEN:APPLAB
Document type:Journal article (JA)
Publisher:American Institute of Physics Inc.
Abstract:Layered metal dichalcogenides (LMDs) have received considerable attention in optoelectronics and photonics. Tin disulfide (SnS
Number of references:59
Main heading:Tin compounds
Controlled terms:Fiber lasers - Infrared devices - IV-VI semiconductors - Locks (fasteners) - Nonlinear optics - Optical properties - Saturable absorbers - Semiconducting tin compounds - Semiconductor quantum wells - Sulfur compounds
Uncontrolled terms:Broadband applications - D-shaped fiber - Dichalcogenides - Mid-infrared regions - Nonlinear optical response - Saturable absorption - Thulium-doped fibers - Ultrafast pulse
Classification code:712.1.2 Compound Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 741.1.1 Nonlinear Optics - 744.1 Lasers, General - 744.4 Solid State Lasers
Numerical data indexing:Size 1.06e-06m, Size 1.55e-06m, Size 1.91e-06m
DOI:10.1063/1.4982624
Funding details: Number: 2015KCT-06, Acronym: -, Sponsor: -;Number: 61525505, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under Grant Agreement No. 61525505, and by the Key Scientific and Technological Innovation Team Project in Shaanxi Province (2015KCT-06).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<101>
Accession number:20171103436800
Title:Electromechanical coupling characteristics of optical-electric theodolite
Authors:Zhang, Jing (1); Hao, Wei (1); Yang, Xiao-Xu (1); Jing, Feng (1); Huang, Wei (1); Qiu, Peng (1); Cao, Bei (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences (CAS), Xi'an; 710119, China
Corresponding author:Cao, Bei(candy@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:1
Issue date:January 1, 2017
Publication year:2017
Article number:0112005
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Combing the structure dynamic design method with the control theory, the flexible electromechanical coupling control model was built which is difference from the traditional rigid control model. The relationship between the structural fundamental frequency and servo bandwidth was analyzed, then the dynamic quantitative design principles were put-forward, The experiment results show that, the theodolite structure frequency should be far away from the resonant frequency of the system, and meet ω
Number of references:10
Page count:7
Main heading:Structural design
Controlled terms:Bandwidth - Dynamic analysis - Electromechanical coupling - Natural frequencies - Photoelectricity - Precision engineering - Professional aspects
Uncontrolled terms:Damping ratio - Electro-optical - Gain - Servo bandwidth - Structural frequencies
Classification code:408.1 Structural Design, General - 701.1 Electricity: Basic Concepts and Phenomena - 716.1 Information Theory and Signal Processing - 901.1 Engineering Professional Aspects
DOI:10.3788/gzxb20174601.0112005
Funding details: Number: 61505248, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The Natural Science Foundation of China(No.61505248).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<102>
Accession number:20173003979034
Title:Development of 808 nm Quasi-Continuous Wave Laser Diode Bar with 600 W Output Power
Authors:Wang, Zhenfu (1); Li, Te (1); Yang, Guowen (1, 2); Song, Yunfei (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (2) Xi'an Lumcore Optoelectronics Technologies Co., Ltd., Xi'an; Shaanxi; 710077, China
Corresponding author:Yang, Guowen(yangguowen@opt.ac.cn)
Source title:Zhongguo Jiguang/Chinese Journal of Lasers
Abbreviated source title:Zhongguo Jiguang
Volume:44
Issue:6
Issue date:June 10, 2017
Publication year:2017
Article number:0601004
Language:Chinese
ISSN:02587025
CODEN:ZHJIDO
Document type:Journal article (JA)
Publisher:Science Press
Abstract:Design of 808 nm epitaxial layer structure is demonstrated, and a very low internal loss less than 0.5 cm-1is achieved. The quasi-continuous wave (QCW) high peak power 808 nm laser bar is fabricated with this high efficiency wafer. The bar with a filled factor of 85%, emitter number of 60, emitting width of 140 μm, and cavity length of 2 mm is measured at QCW mode. The peak power is 613 W with a slope efficiency of 1.34 W/A (drive current of 500 A, pulse width of 200 μs, repetition frequency of 400 Hz, duty ratio of 8%). The peak wavelength is about 807.46 nm with a spectral half-width full-maximum of 2.88 nm. The lifetime test is also demonstrated at QCW 300 W (8% duty ratio), the lifetime of five bars is all above 3.63×109shot, the current fluctuation is lower than 10% at the constant power of 300 W, which satisfies commercial application requirement. 2017, Chinese Lasers Press. All right reserved.
Number of references:15
Main heading:Continuous wave lasers
Controlled terms:Efficiency - Laser optics - Optical losses
Uncontrolled terms:Commercial applications - Current fluctuations - Epitaxial layer structures - Lifetime - Peak power - Quasi-continuous waves - Repetition frequency - Slope efficiencies
Classification code:741 Light, Optics and Optical Devices - 744.1 Lasers, General - 913.1 Production Engineering
Numerical data indexing:Electric_Current 5.00e+02A, Frequency 4.00e+02Hz, Percentage 1.00e+01%, Percentage 8.00e+00%, Percentage 8.50e+01%, Power 3.00e+02W, Power 6.00e+02W, Power 6.13e+02W, Size 1.40e-04m, Size 2.00e-03m, Size 2.88e-09m, Size 8.07e-07m, Size 8.08e-07m, Time 2.00e-04s
DOI:10.3788/CJL201744.0601004
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<103>
Accession number:20171703607490
Title:The influence of temperature and pressure on primary mirror surface figure and image quality of the 1.2m colorful schlieren system
Authors:Xu, Songbo (1); Wang, Peng (1); Chen, Lei (2); Wang, Jing (1); Xie, Yong-Jun (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710072, China; (2) China Aerodynamics Research and Development Center, Mianyang; 621000, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102565D
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:In this paper, a colorful schlieren system without any protecting windows was introduced which results in that the 1.2m primary mirror would directly be confronted with the pressure and temperature variation from the wind tunnel test. To achieve a good schlieren image under the wind tunnel test working condition of a wide temperature fluctuation range (-10°C to 50°C) as well as a pressure (2kPa), a new flexible support method of the primary mirror was strategically designed. A finite element model of the primary mirror combined with its supporting structures was built up to approach the surface figure of the primary mirror under the complex working conditions as gravity, temperature variation, and pressure. The schlieren images due to the change of the primary mirror surface figure were simulated by Light-tools software. It was found that the temperature changing and pressure would lead to the variation of the surface figure of the primary mirror surface figure and therefore, results in the changing of the quality of simulated schlieren images. 2017 SPIE.
Number of references:9
Main heading:Optical testing
Controlled terms:Finite element method - Mirrors - Photonics - Schlieren systems - Structures (built objects) - Temperature distribution - Wind stress - Wind tunnels
Uncontrolled terms:Pressure and temperature - Primary mirrors - Supporting structure - Surface figure - Temperature and pressures - Temperature changing - Temperature fluctuation - Temperature variation
Classification code:443.1 Atmospheric Properties - 641.1 Thermodynamics - 651.2 Wind Tunnels - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 921.6 Numerical Methods
Numerical data indexing:Pressure 2.00e+03Pa, Size 1.20e+00m, Temperature 2.63e+02K to 3.23e+02K
DOI:10.1117/12.2247935
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<104>
Accession number:20174804480176
Title:Superfluidicity in an optical lattice with a PT symmetric defect
Authors:Zhang, Lingxuan (1, 2, 3); Zhang, Wenfu (3); Ge, Li (1, 2)
Author affiliation:(1) College of Staten Island, CUNY, NY, United States; (2) Graduate School, CUNY, NY, United States; (3) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an, Shaanxi, China
Corresponding author:Ge, Li(li.ge@csi.cuny.edu)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F66-FiO 2017
Part number:1 of 1
Issue title:Frontiers in Optics, FiO 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:Frontiers in Optics, FiO 2017
Conference date:September 18, 2017 - September 21, 2017
Conference location:Washington, DC, United states
Conference code:137738
Publisher:OSA - The Optical Society
Abstract:We consider a nonlinear waveguide array with a PT symmetric defect at the center of a parabolic potential. The oscillations of a coherent state persist without dissipation, if its velocity is below a critical value. OSA 2017.
Number of references:4
Page count:2
Main heading:Optical lattices
Controlled terms:Defects - Waveguides
Uncontrolled terms:Coherent state - Critical value - Nonlinear waveguide arrays - Parabolic potential
Classification code:714.3 Waveguides - 744.8 Laser Beam Interactions - 951 Materials Science
DOI:10.1364/FIO.2017.JTu3A.89
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<105>
Accession number:20175004524946
Title:N-vector inertial navigation mechanization algorithm for transpolar aircraft
Authors:Zhang, Guang-Dong (1); Yan, Gong-Min (2); Weng, Jun (2); Yang, Hong-Tao (1)
Author affiliation:(1) Xi'an Institute of Optics And Precision Mechanics Chinese Academy of Sciences, Xi'an; 710119, China; (2) School of Automation, Northwestern Polytechnical University, Xi'an; 710129, China
Source title:Zhongguo Guanxing Jishu Xuebao/Journal of Chinese Inertial Technology
Abbreviated source title:Zhongguo Guanxing Jishu Xuebao
Volume:25
Issue:5
Issue date:October 1, 2017
Publication year:2017
Pages:606-610 and 617
Language:Chinese
ISSN:10056734
Document type:Journal article (JA)
Publisher:Editorial Department of Journal of Chinese Inertial Technology
Abstract:The classical mechanization working could not confirm its position and heading in the circumpolar latitude area. For overcoming this problem, the normal vector inertial navigation basing on earth-fixed frame is presented. This approach uses a normal vector instead of latitude/longitude to finish updating of position. It could achieve navigation requirement world-wide. The n-vector mechanization error equations are derived, which can be used in the design of integrated navigation systems. The simulation could test and verify the error characteristics of n-vector mechanization. The n-vector mechanization offers the solution to transpolar aircraft. The reason of the navigation error saltation near the pole area is explained. 2017, Editorial Department of Journal of Chinese Inertial Technology. All right reserved.
Number of references:11
Main heading:Air navigation
Controlled terms:Errors - Inertial navigation systems - Machinery - Mechanization - Navigation - Vectors
Uncontrolled terms:Earth-fixed frames - Error characteristics - Error equation - Inertial navigations - Integrated navigation systems - Navigation error - Normal vector - Test and verify
Classification code:431.5 Air Navigation and Traffic Control - 601 Mechanical Design - 921.1 Algebra
DOI:10.13695/j.cnki.12-1222/o3.2017.05.009
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<106>
Accession number:20174404315730
Title:Effects of doping SiO
Authors:Sun, Mengya (1, 2); Duan, Zhanjun (3); Wang, Pengfei (1); Lu, Min (1); Peng, Bo (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi'an; 710119, China; (2) University of Chinese Academy of Sciences (UCAS), Beijing; 100049, China; (3) Department of Systems Engineering, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi'an; 710119, China
Corresponding author:Wang, Pengfei(pfwang@opt.ac.cn)
Source title:Optical Materials Express
Abbreviated source title:Opt. Mater. Express
Volume:7
Issue:11
Issue date:2017
Publication year:2017
Article number:307525
Language:English
E-ISSN:21593930
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:The introduction of SiO
Number of references:22
Main heading:Silica
Controlled terms:Defects - Glass - High energy lasers - Irradiation - Nuclear magnetic resonance spectroscopy - Oxygen
Uncontrolled terms:Gamma irradiation - Irradiation dose - Multicomponents - Non-bridging oxygen - Phosphate based glass - Phosphate chain - Phosphate glass - Structure-related
Classification code:744.1 Lasers, General - 804 Chemical Products Generally - 812.3 Glass - 951 Materials Science
DOI:10.1364/OME.7.004111
Funding details: Number: 61307046, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61775235, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC No. 61775235, 61307046); Natural Science Basic Research Project in Shaanxi Province (2015JM6315); West Young Scholars Program of the Chinese Academy of Sciences (XAB2016A08); and Youth Innovation Promotion Association CAS (2017446), China.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<107>
Accession number:20180404671116
Title:Design of imaging circuitry of space CCD camera based on FPGA
Authors:Liu, Meiying (1, 2); Wen, Desheng (1); Wang, Hu (1); Liu, Yang (1); Zhao, Hui (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, No. 17 Xinxi Road, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences 19 a Yuquan Rd, Shijingshan District, Beijing; 100049, China
Corresponding author:Liu, Meiying(liumeiying@opt.ac.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104621M
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:A imaging system of area-Array CCD cameras based on FPGA was designed. The overall structure and design of the system was introduced in detail. According to the working mode and driving timing requirements of this CCD image sensor, the driving schedule under the control of FPGA was designed. The working mode and parameters of such an imaging system were aligned with the control signals in accordance with the general requirements of space CCD cameras. With FPGA device as the platform of hardware design, the hardware of integrated timing and control system was described in VHDL language. The A/D converter AD9945 based on the correlated double sampling was used to realize the analog-digital (A/D) conversion of ICX285AL output signals. The XQR2V3000-4CG717V developed by Xilinx was chosen to accomplish the design of this hardware circuit. Through simulation, the correctness of driving schedule was verified, thus preparing necessary hardware for the final development of space area-Array CCD cameras with high performance. 2017 SPIE.
Number of references:9
Main heading:CCD cameras
Controlled terms:Analog to digital conversion - Computer hardware description languages - Field programmable gate arrays (FPGA) - Hardware - Imaging systems - Integrated circuit design - Timing circuits
Uncontrolled terms:CCD image sensors - Correlated double sampling - Driving circuits - Hardware circuits - Hardware design - Space arrays - Space CCD cameras - Timing requirements
Classification code:605 Small Tools and Hardware - 713.4 Pulse Circuits - 714.2 Semiconductor Devices and Integrated Circuits - 721.2 Logic Elements - 723.1.1 Computer Programming Languages - 746 Imaging Techniques
DOI:10.1117/12.2284098
Funding details: Number: 61105017, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work has been supported by: National Natural Science Foundation of China under the contract No.61105017.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<108>
Accession number:20175104558227
Title:Demonstration of a mid-infrared NO molecular Faraday optical filter
Authors:Wu, Kuijun (1); Feng, Yutao (2); Li, Juan (2); Yu, Guangbao (1); Liu, Linmei (1); Xiong, Yuanhui (1); Li, Faquan (1)
Author affiliation:(1) State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan National Laboratory for Optoelectronics, Wuhan; 430071, China; (2) Key Laboratory of Spectral Imaging Technology of Chinese Academy of Sciences, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China
Corresponding author:Li, Faquan(lifaquan@wipm.ac.cn)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:25
Issue date:December 11, 2017
Publication year:2017
Pages:30916-30930
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:A molecular Faraday optical filter (MFOF) working in the mid-infrared region is realized for the first time. NO molecule was used as the working material of the MFOF for potential applications in atmospheric remote sensing and combustion diagnosis. We develop a complete theory to describe the performance of MFOF by taking both Zeeman absorption and Faraday rotation into account. We also record the Faraday rotation transmission (FRT) signal using a quantum cascade laser over the range of 1,820 cm？1to 1,922 cm？1and calibrate it by using a 101.6 mm long solid germanium etalon with a free spectral range of 0.012 cm？1. Good agreement between the simulation results and experimental data is achieved. The NO-MFOF’s transmission characteristics as a function of magnetic field and pressure are studied in detail. Both Comb-like FRT spectrum and single branch transmission spectrum are obtained by changing the magnetic field. The diversity of FRT spectrum expands the range of potential applications in infrared optical remote sensing. This filtering method can also be extended to the lines of other paramagnetic molecules. 2017 Optical Society of America.
Number of references:39
Main heading:Remote sensing
Controlled terms:Bandpass filters - Infrared devices - Magnetic fields - Molecules - Optical filters - Quantum cascade lasers
Uncontrolled terms:Atmospheric remote sensing - Combustion diagnosis - Free spectral range - Mid-infrared regions - Optical remote sensing - Paramagnetic molecules - Transmission characteristics - Transmission spectrums
Classification code:701.2 Magnetism: Basic Concepts and Phenomena - 703.2 Electric Filters - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 931.3 Atomic and Molecular Physics
Numerical data indexing:Size 1.02e-01m
DOI:10.1364/OE.25.030916
Funding details: Number: -, Acronym: AXA, Sponsor: AXA Research Fund;Number: 2017YFC0211900, Acronym: -, Sponsor: Changjiang Scholar Program of Chinese Ministry of Education;Number: LSIT201701D, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: ITL, Sponsor: Information Technology Laboratory;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61705253, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Key R&D Program of China (2017YFC0211900); National Natural Science Foundation of China (NSFC) (61705253); Open Research Fund of Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences (LSIT201701D). The authors gratefully acknowledge helpful and informative discussions with Gong Shunsheng on experimental details of this work.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<109>
Accession number:20171803618683
Title:Photonic microwave and mm-wave mixer for multichannel fiber transmission
Authors:Gao, Yongsheng (1, 2); Wen, Aijun (2, 3); Zhang, Wu (2, 3); Wang, Yong (2, 3); Zhang, Huixing (2, 4)
Author affiliation:(1) School of Electronics and Information, Northwestern Polytechnical University, Xi'an; 710072, China; (2) State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an; 710071, China; (3) Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi'an; 710071, China; (4) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Journal of Lightwave Technology
Abbreviated source title:J Lightwave Technol
Volume:35
Issue:9
Issue date:May 1, 2017
Publication year:2017
Pages:1566-1574
Article number:7814218
Language:English
ISSN:07338724
CODEN:JLTEDG
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Photonic microwave and millimeter wave (mm-wave) frequency conversion is a promising technique for future electronic systems due to its large bandwidth, electromagnetic immunity, and compatibility with other optical systems. However, the conversion gain of a photonic mixer is often low and may be further reduced by the fiber dispersion. In this paper, a photonic microwave and mm-wave mixer using an integrated polarization division multiplexing Mach-Zehnder modulator (PDM-MZM) is proposed, which exhibits the merits of high conversion gain, high purity, and compensation of the power fading in multichannel fiber transmission. By suppressing the optical carrier and optimizing the modulation index, the conversion gain and isolation are respectively improved by 27.6 and 55.3 dB in the experiment. After power compensation, high and relatively flat microwave and mm-wave signals from 12 to 45 GHz are obtained after transmission over 25-km fiber. In addition, an up-converted 38-GHz mm-wave signal carrying 100-MSym/s 16-quadrature amplitude modulation (16QAM) vector signal is simultaneously transmitted over four channels with different fiber length (back to back, 4, 25, and 50 km). The power fading in each channel can be independently compensated, and good electrical spectra, constellation diagrams, and receiver sensitivity are obtained. 2017 IEEE.
Number of references:31
Main heading:Microwave power transmission
Controlled terms:Dispersion (waves) - Fibers - Light modulators - Microwave devices - Microwaves - Millimeter waves - Modulation - Optical communication - Optical frequency conversion - Photonics
Uncontrolled terms:Conversion gain - Fiber dispersion - Microwave mixers - Microwave Photonics - Multi channel - power fading
Classification code:706.1.1 Electric Power Transmission - 711 Electromagnetic Waves - 717.1 Optical Communication Systems - 741 Light, Optics and Optical Devices
Numerical data indexing:Decibel 2.76e+01dB, Decibel 5.53e+01dB, Frequency 1.20e+10Hz to 4.50e+10Hz, Size 2.50e+04m, Size 5.00e+04m
DOI:10.1109/JLT.2017.2652122
Funding details: Number: SKLST201407, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61306061, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61674119, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the China 111 Project under Grant B08038, in part by the National Natural Science Foundation of China under Grants 61306061 and 61674119, and in part by the Open Research Fund of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences under Grant SKLST201407.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<110>
Accession number:20171403539925
Title:Stable and uniform multiwavelength erbium-doped fiber laser based on a microfiber knot resonator with a Sagnac loop reflector
Authors:Xu, Yiping (1); Ren, Liyong (2); Ma, Chengju (3); Kong, Xudong (2); Ren, Kaili (2); Song, Feng (1, 4)
Author affiliation:(1) School of Physics and Optoelectronic Engineering, Yangtze University, Jingzhou; 434023, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China; (3) School of Science, Xi’an Shiyou University, Xi’an; 710065, China; (4) School of Physics, Nankai University, Tianjin; 300071, China
Corresponding author:Xu, Yiping(ypxu@yangtzeu.edu.cn)
Source title:Journal of Optics (India)
Abbreviated source title:J. Opt.
Volume:46
Issue:4
Issue date:December 1, 2017
Publication year:2017
Pages:420-424
Language:English
ISSN:09728821
E-ISSN:09746900
CODEN:JOPTBQ
Document type:Journal article (JA)
Publisher:Optical Society of India
Abstract:In this paper, we proposed and demonstrated a stable and uniform multiwavelength erbium-doped fiber laser (EDFL) by using of the filer action of microfiber knot resonator (MKR) with a Sagnac loop reflector. By embedding the resonator to the ring cavity of the EDFL by means of a circulator, a multiwavelength EDFL is created. The number of the lasing lines with different wavelengths within 3-dB bandwidth is up to 42, the linewidth of each lasing line is about 0.05 nm and the side-mode suppression ratio is about 45 dB. The results demonstrate that the MKR with a Sagnac loop reflector can be employed as a high performance comb filter to realize a stable and uniform multiwavelength fiber laser. 2017, The Optical Society of India.
Number of references:33
Main heading:Optical fiber communication
Controlled terms:Erbium - Fiber lasers - Optical fibers - Reflection - Resonators - Ring lasers
Uncontrolled terms:Fiber communications - Micro-fiber - Micro-fiber knot resonators - Multi wavelength fiber laser - Multiwavelength - Multiwavelength erbium-doped fiber lasers - Ring cavities - Side mode suppression ratios
Classification code:547.2 Rare Earth Metals - 717.1 Optical Communication Systems - 741.1.2 Fiber Optics - 744 Lasers - 744.4 Solid State Lasers
Numerical data indexing:Decibel 3.00e+00dB, Decibel 4.50e+01dB, Size 5.00e-11m
DOI:10.1007/s12596-017-0394-1
Funding details: Number: 2016CFC767, Acronym: -, Sponsor: Natural Science Foundation of Hubei Province;Number: 61275149, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61535015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61605018, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant Nos. 61275149, 61535015 and 61605018, the Hubei Natural Science Foundation of China under Grant No. 2016CFC767, the Doctoral Scientific Research Startup Foundation of Yangtze University under Grant No. 801080010128, and the Open Research Fund of State Key Laboratory of Transient Optics and Photonics under Grant No. SKLST201612.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<111>
Accession number:20171403517382
Title:Small-size streak tube for imaging lidar
Authors:Tian, Jinshou (1); Hui, Dandan (1, 2); Luo, Duan (1, 2); Wang, Tao (1); Zhang, Jun (3); Chen, Shaorong (3); Jia, Hui (3)
Author affiliation:(1) Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) National University of Defense Technology, China
Corresponding author:Tian, Jinshou(tianjs@opt.ac.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10328
Part number:1 of 1
Issue title:Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics
Issue date:2017
Publication year:2017
Article number:103280O
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510611009
Document type:Conference article (CA)
Conference name:31st International Congress on High-Speed Imaging and Photonics
Conference date:November 6, 2016 - November 10, 2016
Conference location:Osaka, Japan
Conference code:126843
Publisher:SPIE
Abstract:Streak tube imaging lidar, as a novel flash lidar, due to its advantages of higher resolution for low contrast conditions, compact and rugged physical configurations, small image distortions owing to its scannerless design, and higher image update rates, has immense potential to provide 3D single-laser-pulse scannerless imaging, 3D multispectral imaging, 3D multispectral fluorescence imaging, and 3D polarimetry. In order to further reduce the size and enlarge the field of view (FOV) of the lidar system, we designed a super small-size, large photocathode area and meshless streak tube with spherical cathode and screen. With the aid of Computer Simulation Technology Software package (CST), a model of the streak tube was built, and its predominant performances were illustrated via tracking electron trajectories. Spatial resolution of the streak tube reaches 20lp/mm over the entire 028mm photocathode working area, and its temporal resolution is better than 30ps. Most importantly, the external dimensions of the streak tube are only 050mmx100mm. And several prototypes are already manufactured on the basis of the computer design. 2017 SPIE.
Number of references:14
Main heading:Fluorescence imaging
Controlled terms:Computer software - High speed cameras - Imaging systems - Optical radar - Photocathodes - Streak cameras - Tubes (components)
Uncontrolled terms:Computer simulation technology - Electron trajectories - Large photocathode area - Meshless - Multispectral imaging - Streak tube imaging lidars - Super small-size - Temporal resolution
Classification code:619.1 Pipe, Piping and Pipelines - 714.1 Electron Tubes - 716.2 Radar Systems and Equipment - 723 Computer Software, Data Handling and Applications - 742.2 Photographic Equipment - 746 Imaging Techniques
Numerical data indexing:Size 2.80e-02m, Time 3.00e-11s
DOI:10.1117/12.2269063
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<112>
Accession number:20172403752852
Title:High power vertical stacked diode laser development using macro-channel water cooling and hard solder bonding technology
Authors:Yu, Dongshan (1); Liang, Xuejie (1); Wang, Jingwei (1); Li, Xiaoning (1); Nie, Zhiqiang (2); Liu, Xingsheng (1, 2)
Author affiliation:(1) Focuslight Technologies Inc, No. 56 Zhangba liu Road, High-Tech Zone, Xi'an, Shaanxi; 710077, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an Hi-Tech Industrial Development Zone, No. 17 Xinxi Road, New Industrial Park, Xi'an, Shaanxi; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10123
Part number:1 of 1
Issue title:Novel In-Plane Semiconductor Lasers XVI
Issue date:2017
Publication year:2017
Article number:101231A
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510606876
Document type:Conference article (CA)
Conference name:Novel In-Plane Semiconductor Lasers XVI 2017
Conference date:January 30, 2017 - February 2, 2017
Conference location:San Francisco, CA, United states
Conference code:1279611
Sponsor:The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:A novel marco channel cooler (MaCC) has been developed for packaging high power diode vertical stacked (HPDL) lasers, which eliminates many of the issues in commercially-available copper micro-channel coolers (MCC). The MaCC coolers, which do not require deionized water as coolant, were carefully designed for compact size and superior thermal dissipation capability. Indium-free packaging technology was adopted throughout product design and fabrication process to minimize the risk of solder electromigration and thermal fatigue at high current density and long pulse width under QCW operation. Single MaCC unit with peak output power of up to 700W/bar at pulse width in microsecond range and 200W/bar at pulse width in millisecond range has been recorded. Characteristic comparison on thermal resistivity, spectrum, near filed and lifetime have been conducted between a MaCC product and its counterpart MCC product. QCW lifetime test (30ms 10Hz, 30% duty cycle) has also been conducted with distilled water as coolant. A vertical 40-MaCC stack product has been fabricated, total output power of 9 kilowatts has been recorded under QCW mode (3ms, 30Hz, 9% duty cycle). 2017 SPIE.
Number of references:13
Main heading:Semiconductor lasers
Controlled terms:Chip scale packages - Coolants - Cooling systems - Deionized water - Diodes - Gold alloys - Power semiconductor diodes - Product design - Tin alloys
Uncontrolled terms:Distilled water - Gold tin alloys - High current densities - High power diode laser - Indium-free - Microchannel coolers - Packaging technologies - Thermal dissipation
Classification code:445.1 Water Treatment Techniques - 546.2 Tin and Alloys - 547.1 Precious Metals - 714.2 Semiconductor Devices and Integrated Circuits - 744.4.1 Semiconductor Lasers - 803 Chemical Agents and Basic Industrial Chemicals - 913.1 Production Engineering
Numerical data indexing:Frequency 1.00e+01Hz, Frequency 3.00e+01Hz, Percentage 3.00e+01%, Percentage 9.00e+00%, Power 9.00e+03W, Time 3.00e-03s
DOI:10.1117/12.2250692
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<113>
Accession number:20174104242975
Title:Unsupervised large graph embedding
Authors:Nie, Feiping (1); Zhu, Wei (1); Li, Xuelong (2)
Author affiliation:(1) School of Computer Science, Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Source title:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Abbreviated source title:AAAI Conf. Artif. Intell., AAAI
Part number:1 of 1
Issue title:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Issue date:2017
Publication year:2017
Pages:2422-2428
Language:English
Document type:Conference article (CA)
Conference name:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Conference date:February 4, 2017 - February 10, 2017
Conference location:San Francisco, CA, United states
Conference code:130407
Sponsor:Amazon; Artificial Intelligence; Baidu; et al.; IBM; Tencent
Publisher:AAAI press
Abstract:There are many successful spectral based unsupervised dimensionality reduction methods, including Laplacian Eigenmap (LE), Locality Preserving Projection (LPP), Spectral Regression (SR), etc. LPP and SR are two different linear spectral based methods, however, we discover that LPP and SR are equivalent, if the symmetric similarity matrix is doubly stochastic, Positive Semi-Definite (PSD) and with rank p, where p is the reduced dimension. The discovery promotes us to seek low-rank and doubly stochastic similarity matrix, we then propose an unsupervised linear dimensionality reduction method, called Unsupervised Large Graph Embedding (ULGE). ULGE starts with similar idea as LPP, it adopts an efficient approach to construct similarity matrix and then performs spectral analysis efficiently, the computational complexity can reduce to O(ndm), which is a significant improvement compared to conventional spectral based methods which need O(n2d) at least, where n, d and m are the number of samples, dimensions and anchors, respectively. Extensive experiments on several public available data sets demonstrate the efficiency and effectiveness of the proposed method.
Copyright ？ 2017, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved.
Number of references:25
Main heading:Matrix algebra
Controlled terms:Artificial intelligence - Spectrum analysis - Stochastic systems
Uncontrolled terms:Dimensionality reduction method - Doubly stochastic - Laplacian eigenmap - Linear dimensionality reduction - Locality preserving projections - Number of samples - Similarity matrix - Spectral regressions
Classification code:723.4 Artificial Intelligence - 921.1 Algebra - 961 Systems Science
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<114>
Accession number:20175104549161
Title:Deep temporal architecture for audiovisual speech recognition
Authors:Tian, Chunlin (1, 2); Yuan, Yuan (1); Lu, Xiaoqiang (1)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing; 100049, China
Corresponding author:Lu, Xiaoqiang(luxiaoqiang@opt.ac.cn)
Source title:Communications in Computer and Information Science
Abbreviated source title:Commun. Comput. Info. Sci.
Volume:771
Part number:1 of 3
Issue title:Computer Vision - 2nd CCF Chinese Conference, CCCV 2017, Proceedings
Issue date:2017
Publication year:2017
Pages:650-661
Language:English
ISSN:18650929
ISBN-13:9789811072987
Document type:Conference article (CA)
Conference name:2nd Chinese Conference on Computer Vision, CCCV 2017
Conference date:October 11, 2017 - October 14, 2017
Conference location:Tianjin, China
Conference code:208009
Publisher:Springer Verlag
Abstract:The Audiovisual Speech Recognition (AVSR) is one of the applications of multimodal machine learning related to speech recognition, lipreading systems and video classification. In recent and related work, increasing efforts are made in Deep Neural Network (DNN) for AVSR, moreover some DNN models including Multimodal Deep Autoencoder, Multimodal Deep Belief Network and Multimodal Deep Boltzmann Machine perform well in experiments owing to the better generalization and nonlinear transformation. However, these DNN models have several disadvantages: (1) They mainly deal with modal fusion while ignoring temporal fusion. (2) Traditional methods fail to consider the connection among frames in the modal fusion. (3) These models aren’t end-to-end structure. We propose a deep temporal architecture, which has not only classical modal fusion, but temporal modal fusion and temporal fusion. Furthermore, the overfitting and learning with small size samples in the AVSR are also studied, so that we propose a set of useful training strategies. The experiments show the superiority of our model and necessity of the training strategies in three datasets: AVLetters, AVLetters2, AVDigits. In the end, we conclude the work. Springer Nature Singapore Pte Ltd. 2017.
Number of references:32
Main heading:Speech recognition
Controlled terms:Computer vision - Deep neural networks - Elastic constants - Mathematical transformations - Network architecture
Uncontrolled terms:Audio visual speech recognition - Deep belief networks - Deep boltzmann machines - Multi-modal - Non-linear transformations - Small size samples - Training strategy - Video classification
Classification code:723.5 Computer Applications - 751.5 Speech - 921.3 Mathematical Transformations - 931.2 Physical Properties of Gases, Liquids and Solids
DOI:10.1007/978-981-10-7299-4_54
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<115>
Accession number:20173103998663
Title:A deep convolution neural network for object detection based
Authors:Yue, Qi (1, 2, 3); Ma, Caiwen (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100039, China; (3) Xi'an University of Posts and Telecomunications, Xi'an; 710121, China
Corresponding author:Yue, Qi(yueqi6@163.com)
Source title:Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology
Abbreviated source title:Harbin Gongye Daxue Xuebao
Volume:49
Issue:5
Issue date:May 30, 2017
Publication year:2017
Pages:159-164
Language:Chinese
ISSN:03676234
CODEN:HPKYAY
Document type:Journal article (JA)
Publisher:Harbin Institute of Technology
Abstract:Deep convolutional neural network (CNN) has too many parameters to initialize, and the usual random initialization method is easy to disappear of modified gradient and the problem of premature. The unsupervised PCA learning method is used to obtain oriented initialization parameters. And the gradient descendent method with exponential flexible momentum for updating free parameters of the network is proposed on the basis of analyzing the error propagation of the network. Image detection experiments are respectively carried out on pedestrian detection, and the results show that, compared with other artificial feature detection algorithms, this method can effectively improve target detection accuracy and the detection speed of this method is 20% faster than that of classical CNN; compared with homologous updating mechanism of other momentum, our method has faster convergence and smaller oscillation, and can improve the detection accuracy by 1.6%, 1.8% and 6.19% respectively in different depth models. 2017, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.
Number of references:15
Main heading:Deep neural networks
Controlled terms:Convolution - Image enhancement - Momentum - Neural networks - Object detection - Object recognition - Target tracking
Uncontrolled terms:Convolution neural network - Deep convolutional neural networks - Detection accuracy - Faster convergence - Feature detection algorithm - Initialization methods - Model optimization - Pedestrian detection
Classification code:716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing - 931.1 Mechanics
Numerical data indexing:Percentage 1.60e+00%, Percentage 1.80e+00%, Percentage 2.00e+01%, Percentage 6.19e+00%
DOI:10.11918/j.issn.0367-6234.201603145
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<116>
Accession number:20181304967768
Title:Four-wave mixing photon pair generation statistics for a nonlinear microcavity with chaotic and pulsed excitation
Authors:Roztocki, Piotr (1); Kues, Michael (1, 2); Reimer, Christian (1); Little, Brent E. (3); Chu, Sai T. (4); Moss, David J. (1, 5); Morandotti, Roberto (1, 6, 7)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, China; (4) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong; (5) Center for Microphotonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (6) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (7) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Source title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Abbreviated source title:Conf. Lasers. Electr.-Opt., Proc.
Volume:2017-January
Part number:1 of 1
Issue title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Issue date:October 25, 2017
Publication year:2017
Pages:1-2
Language:English
ISBN-13:9781943580279
Document type:Conference article (CA)
Conference name:2017 Conference on Lasers and Electro-Optics, CLEO 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:131854
Sponsor:AdValue Photonics; American Elements - The Materials Science Company; Coherent; et al.; KMLabs - Leading in Ultrafast; MKS
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We characterize four-wave mixing photon pair generation statistics in the chaotic pulsed regime associated with a self-locked nonlinear microcavity excitation scheme, and contrast these statistics against a pulsed actively mode-locked excitation. 2017 IEEE
Number of references:4
Main heading:Four wave mixing
Controlled terms:Locks (fasteners) - Microcavities - Photons
Uncontrolled terms:Excitation schemes - Mode-locked - Photon pair generations - Pulsed excitation
Classification code:714 Electronic Components and Tubes - 931.3 Atomic and Molecular Physics
DOI:10.1364/CLEO_QELS.2017.FTu4D.3
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<117>
Accession number:20163002627747
Title:The theoretical investigation of the impact of two-photon absorption and free-carrier absorption on phase-sensitive amplification in silicon waveguides
Authors:Ma, Yonghua (1); Liu, Hongjun (1); Sun, Qibing (1); Huang, Nan (1); Wang, Zhaolu (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi’an, China
Corresponding author:Liu, Hongjun(liuhongjun@opt.ac.cn)
Source title:Journal of Modern Optics
Abbreviated source title:J. Mod. Opt.
Volume:64
Issue:1
Issue date:January 2, 2017
Publication year:2017
Pages:93-99
Language:English
ISSN:09500340
E-ISSN:13623044
CODEN:JMOPEW
Document type:Journal article (JA)
Publisher:Taylor and Francis Ltd.
Abstract:We investigate the influence of two-photon absorption (TPA) and free-carrier absorption (FCA) on phase-sensitive amplification (PSA) process in a dispersion engineered silicon strip waveguide at the telecom wavelengths. The phase-dependent gain and phase-to-phase transfer functions as well as the phase regeneration capacity of PSA are numerically analysed. It is found that TPA and FCA will suppress the phase-sensitive extinction ratio (PER) and the efficiency of phase squeezing. Moreover, the phase regeneration capability of silicon waveguide-based PSA is investigated by comparing the regenerated signal waveforms at a different signal power with/without TPA and FCA. Our results have potential application in all-optical signal regeneration. 2016 Informa UK Limited, trading as Taylor & Francis Group.
Number of references:31
Main heading:Luminescence of organic solids
Controlled terms:Four wave mixing - Optical signal processing - Photons - Silicon - Two photon processes - Waveguides
Uncontrolled terms:All-optical signal regeneration - Free carrier absorption - Non-linear optical - Parametric process - Phase transfer functions - Phase-sensitive amplifications - Theoretical investigations - Two photon absorption
Classification code:549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 714.3 Waveguides - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics
DOI:10.1080/09500340.2016.1208850
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<118>
Accession number:20173404078688
Title:Filter-driven four wave mixing laser with a controllable repetition rate
Authors:Cooper, Andrew (1); Bao, Hualong (1); Di Lauro, Luigi (1); Rowley, Maxwell (1); Chu, Sai T. (2); Little, Brent E. (3); Morandotti, Roberto (4); Moss, David J. (5); Peccianti, Marco (1); Pasquazi, Alessia (1)
Author affiliation:(1) Emergent Photonics (Epic) Lab, Dept. of Physics and Astronomy, University of Sussex, BN1 9QH, United Kingdom; (2) City University of Hong Kong, Tat Chee Avenue, Hong Kong; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China; (4) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (5) Swinburne University of Technology, Hawthorn; VIC; 3122, Australia
Corresponding author:Cooper, Andrew(A.Cooper@sussex.ac.uk)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F52-IPRSN 2017
Part number:1 of 1
Issue title:Advanced Photonics, IPRSN 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:Advanced Photonics, IPRSN 2017
Conference date:July 24, 2017 - July 27, 2017
Conference location:New Orleans, LA, United states
Conference code:136878
Publisher:OSA - The Optical Society
Abstract:We demonstrate a robust control over the repetition rate of a micro-comb laser by using the Filter-Driven Four Wave Mixing scheme. Results show that the coherence can be kept during the whole process. OSA 2017.
Number of references:7
Page count:3
Main heading:Four wave mixing
Controlled terms:Bandpass filters - Q switched lasers - Robust control
Uncontrolled terms:Controllable repetition rate - Repetition rate - Whole process
Classification code:703.2 Electric Filters - 731 Automatic Control Principles and Applications - 744.1 Lasers, General
DOI:10.1364/IPRSN.2017.IM4A.2
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<119>
Accession number:20173504101270
Title:A Method for Achieving Super Resolution Vibrational Sum-Frequency Generation Microscopy by Structured Illumination
Authors:Li, Ya-Hui (1, 2, 3); Chen, Dan-Ni (2, 4, 5); Niu, Han-Ben (2, 4, 5)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Xi'an; 710119, China; (2) Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen; 518060, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China; (4) Shenzhen Key Laboratory of Biomedicine Engineering, Shenzhen University, Shenzhen; 518060, China; (5) Shenzhen Key Laboratory of Micro-Nano Measuring and Imaging in Biomedical Optics, College of Optoelectronic Engineering, Shenzhen University, Shenzhen; 518060, China
Source title:IEEE Photonics Journal
Abbreviated source title:IEEE Photon. J.
Volume:9
Issue:3
Issue date:June 2017
Publication year:2017
Article number:7931556
Language:English
ISSN:19430655
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:A scheme was proposed to achieve wide-field vibrational sum-frequency generation (SFG) microscopy with subdiffraction-limited resolution in one dimension. In this approach, samples are illuminated with a structured visible field and a uniform IR field to induce vibrational sum-frequency generation. With five raw images acquired at five different phases of the visible stripe pattern, a super-resolved vibrational SFG (SR-SFG) image with the resolution triple to that of the original can be reconstructed. Theoretical framework describing the coherent image formation and reconstruction scheme for the SR-SFG imaging system was derived and carried out with numerical simulations to investigate its imaging performance. With a typical imaging system, the lateral resolution was improved from 390 nm of the conventional SFG imaging system, to around 130 nm of the SR-SFG imaging system. 2009-2012 IEEE.
Number of references:18
Main heading:Image resolution
Controlled terms:Image reconstruction - Imaging systems - Interferometry - Nanophotonics - Spectroscopy
Uncontrolled terms:Coherent imaging - Imaging performance - Lateral resolution - Limited resolution - Nonlinear microscopy - Structured illumination - Theoretical framework - Vibrational sum-frequency generations
Classification code:741.1 Light/Optics - 746 Imaging Techniques - 941.4 Optical Variables Measurements
Numerical data indexing:Size 1.30e-07m, Size 3.90e-07m
DOI:10.1109/JPHOT.2017.2705124
Funding details: Number: -, Acronym: -, Sponsor: Mayday Fund;Number: 2012CB825802, Acronym: -, Sponsor: Basic Research Program of Jiangsu Province;Number: 2015CB352005, Acronym: -, Sponsor: Basic Research Program of Jiangsu Province;Number: -, Acronym: -, Sponsor: Guangzhou Science and Technology Program key projects;Number: JCYJ 20160308104404452, Acronym: -, Sponsor: Shenzhen Graduate School, Peking University;Number: 2012YQ15009203, Acronym: -, Sponsor: China Youth Development Foundation;Number: 61235012, Acronym: -, Sponsor: National Natural Science Foundation of China;Number: 61335001, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:Manuscript received March 5, 2017; revised May 8, 2017; accepted May 12, 2017. Date of publication May 18, 2017; date of current version June 21, 2017. This work was sponsored in part by the National Natural Science Foundation of China (NSFC) under Grant 61335001 and Grant 61235012, in part by the Special Funds of the Major Scientific Instruments Equipment Development of China under Grant 2012YQ15009203, in part by the National Basic Research Program of China under Grant 2015CB352005 and Grant 2012CB825802, in part by the Science and Technology Planning project of Shenzhen, China, under Grant JCYJ 20160308104404452. Corresponding author: Dan-Ni Chen (e-mail: danny@szu.edu.cn).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<120>
Accession number:20171703607548
Title:Application of linear CCD in tunnel crack detection
Authors:Jie, Liu (1, 2); Hua, Li (2); Xin, Jiang (2); Hemin, Chang (2)
Author affiliation:(1) University of Chinese, Academy of Sciences, Beijing; 100049, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102562Y
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:To meet the actual demand, the linear CCD technology is applied to tunnel crack detection, and an edge detection algorithm is proposed to measure the crack width. Firstly, the application form of linear CCD imaging technology in tunnel crack detection is introduced concretely in this paper. Then, the key influencing parameters of measurement are discussed. Finally, an edge detection algorithm based on the change of gray level in linear direction is proposed and it is verified by experiments. Experimental results indicated that the linear CCD imaging technology in tunnel crack detection could obtain measurement data quickly and improve the efficiency of tunnel cracks' measurement, and that the detection algorithm could be used for the crack width measuring. 2017 SPIE.
Number of references:10
Main heading:Crack detection
Controlled terms:Edge detection - Photonics - Signal detection
Uncontrolled terms:Crack width - Detection algorithm - Edge detection algorithms - Influencing parameters - Linear CCD - Linear direction - Measurement data - Optical detection
Classification code:716.1 Information Theory and Signal Processing - 741.1 Light/Optics
DOI:10.1117/12.2257653
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<121>
Accession number:20174404326316
Title:Imaging through a scattering medium based on spatial transmission matrix
Authors:Zhuang, Bin (1, 2); Xu, Chengfang (1, 2); Geng, Yi (1, 2); Zhao, Guangzhi (1, 2); Zhou, Libin (3); He, Zhengquan (1); Ren, Liyong (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, China; (2) University of Chinese Academy of Sciences, China; (3) Shaanxi University of Science and Technology, China
Corresponding author:He, Zhengquan(zhqhe@opt.ac.cn)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F61-ECBO 2017
Part number:1 of 1
Issue title:European Conference on Biomedical Optics, ECBO 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:European Conference on Biomedical Optics, ECBO 2017
Conference date:June 25, 2017 - June 29, 2017
Conference location:Munich, Germany
Conference code:137548
Sponsor:OSA; SPIE
Publisher:OSA - The Optical Society
Abstract:The inhomogeneity of scattering medium distorts the propagation of the waves, which has been detrimental to the performance of optical imaging. The operating time of the traditional solutions will be very long as the scanning is necessary during the imaging. A recovery solution based on spatial optical transmission matrix has been proposed. With the acquiring of the spatial optical transmission matrix, the incident object wave will be recovered directly from the distorted transmitted wave, in this way, only a single shot is needed during the imaging. The effectiveness of this method has been proved by the simulation and experiment, the principle is simpler and the algorithm is more efficient, which are beneficial to the imaging through the scattering medium. 2017 SPIE-OSA.
Number of references:11
Page count:4
Main heading:Light transmission
Uncontrolled terms:Inhomogeneities - Object waves - Operating time - Optical imaging - Optical transmission matrix - Scattering medium - Spatial transmission - Transmitted waves
Classification code:741.1 Light/Optics
DOI:10.1117/12.2285014
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<122>
Accession number:20173904206130
Title:Realization and testing of a deployable space telescope based on tape springs
Authors:Lei, Wang (1, 2); Li, Chuang (1); Zhong, Peifeng (1); Chong, Yaqin (1); Jing, Nan (1)
Author affiliation:(1) Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, 17 Xinxi Road, Xian, Shaanxi; 710119, China; (2) Shaanxi Normal University, 620 Xichang'an Road, Xian, Shaanxi; 710119, China
Corresponding author:Li, Chuang(lichuang@opt.ac.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10339
Part number:1 of 1
Issue title:Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers
Issue date:2017
Publication year:2017
Article number:1033920
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510611238
Document type:Conference article (CA)
Conference name:Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers
Conference date:May 21, 2017 - May 24, 2017
Conference location:Shanghai, China
Conference code:130514
Publisher:SPIE
Abstract:For its compact size and light weight, space telescope with deployable support structure for its secondary mirror is very suitable as an optical payload for a nanosatellite or a cubesat. Firstly the realization of a prototype deployable space telescope based on tape springs is introduced in this paper. The deployable telescope is composed of primary mirror assembly, secondary mirror assembly, 6 foldable tape springs to support the secondary mirror assembly, deployable baffle, aft optic components, and a set of lock-released devices based on shape memory alloy, etc. Then the deployment errors of the secondary mirror are measured with three-coordinate measuring machine to examine the alignment accuracy between the primary mirror and the deployed secondary mirror. Finally modal identification is completed for the telescope in deployment state to investigate its dynamic behavior with impact hammer testing. The results of the experimental modal identification agree with those from finite element analysis well. 2017 SPIE.
Number of references:6
Main heading:Springs (components)
Controlled terms:Finite element method - Hammers - High power lasers - Laser damage - Locks (fasteners) - Mirrors - Nanosatellites - Optical materials - Shape memory effect - Space telescopes
Uncontrolled terms:Alignment accuracy - Deployable telescopes - Dynamic behaviors - Impact hammer testing - Modal identification - Support structures - Tape springs - Three-coordinate measuring machines
Classification code:601.2 Machine Components - 605.2 Small Tools, Unpowered - 655.2 Satellites - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 744.8 Laser Beam Interactions - 921.6 Numerical Methods - 951 Materials Science
DOI:10.1117/12.2269968
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<123>
Accession number:20180304654530
Title:Lightweight structure design for supporting plate of primary mirror
Authors:Wang, Xiao (1, 2); Wang, Wei (1); Liu, Bei (1, 2); Qu, Yan Jun (1, 2); Li, Xu Peng (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, No.17, Xinxi Road, Xi'an; 710119, China; (2) University of Chinese, Academy of Science, Jingjia Road, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10463
Part number:1 of 1
Issue title:AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Issue date:2017
Publication year:2017
Article number:104631O
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614079
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133232
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:A topological optimization design for the lightweight technology of supporting plate of the primary mirror is presented in this paper. The supporting plate of the primary mirror is topologically optimized under the condition of determined shape, loads and environment. And the optimal structure is obtained. The diameter of the primary mirror in this paper is 450mm, and the material is SiC1. It is better to select SiC/Al as the supporting material. Six points of axial relative displacement can be used as constraints in optimization2. Establishing the supporting plate model and setting up the model parameters. After analyzing the force of the main mirror on the supporting plate, the model is applied with force and constraints. Modal analysis and static analysis of supporting plates are calculated. The continuum structure topological optimization mathematical model is created with the variable-density method. The maximum deformation of the surface of supporting plate under the gravity of the mirror and the first model frequency are assigned to response variable, and the entire volume of supporting structure is converted to object function. The structures before and after optimization are analyzed using the finite element method. Results show that the optimized fundamental frequency increases 29.85Hz and has a less displacement compared with the traditional structure. 2017 SPIE.
Number of references:11
Main heading:Structural design
Controlled terms:Earth (planet) - Finite element method - Mirrors - Modal analysis - Plates (structural components) - Shape optimization - Silicon carbide - Structural optimization - Topology
Uncontrolled terms:Fundamental frequencies - Lightweight structure designs - Lightweight technology - Primary mirrors - Relative displacement - Topological optimization - Traditional structures - Variable density methods
Classification code:408.1 Structural Design, General - 408.2 Structural Members and Shapes - 741.3 Optical Devices and Systems - 804.2 Inorganic Compounds - 921 Mathematics
Numerical data indexing:Frequency 2.99e+01Hz, Size 4.50e-01m
DOI:10.1117/12.2285730
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<124>
Accession number:20170603336429
Title:Adaptive Multimedia Data Forwarding for Privacy Preservation in Vehicular Ad-Hoc Networks
Authors:Xia, Yingjie (1); Chen, Wenzhi (1); Liu, Xuejiao (2); Zhang, Luming (3); Li, Xuelong (4); Xiang, Yang (5)
Author affiliation:(1) College of Computer Sciences, Zhejiang University, Hangzhou; 310027, China; (2) Institute of Service Engineering, Hangzhou Normal University, Hangzhou; 311121, China; (3) School of Computing, National University of Singapore, Singapore; 119077, Singapore; (4) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian; 710119, China; (5) School of Information Technology, Deakin University, Burwood; VIC; 3125, Australia
Source title:IEEE Transactions on Intelligent Transportation Systems
Abbreviated source title:IEEE Trans. Intell. Transp. Syst.
Volume:18
Issue:10
Issue date:October 2017
Publication year:2017
Pages:2629-2641
Article number:7837606
Language:English
ISSN:15249050
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Vehicular ad-hoc networks (VANETs) have drawn much attention of researchers. The vehicles in VANETs frequently join and leave the networks, and therefore restructure the network dynamically and automatically. Forwarded messages in vehicular ad-hoc networks are primarily multimedia data, including structured data, plain text, sound, and video, which require access control with efficient privacy preservation. Ciphertext-policy attribute-based encryption (CP-ABE) is adopted to meet the requirements. However, solutions based on traditional CP-ABE suffer from challenges of the limited computational resources on-board units equipped in the vehicles, especially for the complex policies of encryption and decryption. In this paper, we propose a CP-ABE delegation scheme, which allows road side units (RSUs) to perform most of the computation, for the purpose of improving the decryption efficiency of the vehicles. By using decision tree to jointly optimize multiple factors, such as the distance from RSU, the communication and computational cost, the CP-ABE delegation scheme is adaptively activated based on the estimation of various vehicles decryption overhead. Experimental results thoroughly demonstrate that our scheme is effective and efficient for multimedia data forwarding in vehicular ad-hoc networks with privacy preservation. 2017 IEEE.
Number of references:51
Main heading:Vehicular ad hoc networks
Controlled terms:Access control - Cryptography - Data privacy - Decision trees - Vehicle to vehicle communications - Vehicles
Uncontrolled terms:Adaptive multimedia - Attributed-based encryptions - Ciphertext-policy attribute-based encryptions - Computational resources - Encryption and decryption - Multimedia messages - Privacy preservation - Vehicular Adhoc Networks (VANETs)
Classification code:716 Telecommunication; Radar, Radio and Television - 723 Computer Software, Data Handling and Applications - 961 Systems Science
DOI:10.1109/TITS.2017.2653103
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<125>
Accession number:5164666
Title:Reweighted Infrared Patch-Tensor Model with Both Nonlocal and Local Priors for Single-Frame Small Target Detection
Authors:Dai, Yimian (1); Wu, Yiquan (1, 2)
Author affiliation:(1) College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 211106, China; (2) Key Laboratory of Spectral Imaging Technology CAS, Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an; 710000, China
Corresponding author:Wu, Yiquan(nuaaimagestrong@163.com)
Source title:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Abbreviated source title:IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens.
Volume:10
Issue:8
Issue date:August 2017
Publication year:2017
Pages:3752-3767
Article number:7932858
Language:English
ISSN:19391404
E-ISSN:21511535
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers
Abstract:Many state-of-the-art methods have been proposed for infrared small target detection. They work well on the images with homogeneous backgrounds and high-contrast targets. However, when facing highly heterogeneous backgrounds, they would not perform very well, mainly due to: 1) the existence of strong edges and other interfering components, 2) not utilizing the priors fully. Inspired by this, we propose a novel method to exploit both local and nonlocal priors simultaneously. First, we employ a new infrared patch-tensor (IPT) model to represent the image and preserve its spatial correlations. Exploiting the target sparse prior and background nonlocal self-correlation prior, the target-background separation is modeled as a robust low-rank tensor recovery problem. Moreover, with the help of the structure tensor and reweighted idea, we design an entrywise local-structure-adaptive and sparsity enhancing weight to replace the globally constant weighting parameter. The decomposition could be achieved via the elementwise reweighted higher order robust principal component analysis with an additional convergence condition according to the practical situation of target detection. Extensive experiments demonstrate that our model outperforms the other state-of-the-arts, in particular for the images with very dim targets and heavy clutters. ？ 2008-2012 IEEE.
Number of references:52
Controlled terms:detection method - image processing - numerical model - principal component analysis
Classification code:71.8.5.4 Remote sensing: numerical and image analysis
DOI:10.1109/JSTARS.2017.2700023
Funding details: Number: 61573183, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61573183, and in part by Open Research Fund of Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences under Grant LSIT201401.
Database:GEOBASE
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<126>
Accession number:20165203170887
Title:Short-term prediction of UT1-UTC by combination of the grey model and neural networks
Authors:Lei, Yu (1, 2); Guo, Min (3); Hu, Dan-dan (3); Cai, Hong-bing (1, 2); Zhao, Dan-ning (1, 4); Hu, Zhao-peng (1, 4); Gao, Yu-ping (1, 2)
Author affiliation:(1) National Time Service Center, Chinese Academy of Sciences, Xi'an; Shaanxi; 710600, China; (2) Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences, Xi'an; Shaanxi; 710600, China; (3) Xi'an Institute of Optics and Precision Mechanics, Xi'an; Shaanxi; 710119, China; (4) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Lei, Yu(leiyu@ntsc.ac.cn)
Source title:Advances in Space Research
Abbreviated source title:Adv. Space Res.
Volume:59
Issue:2
Issue date:January 15, 2017
Publication year:2017
Pages:524-531
Language:English
ISSN:02731177
E-ISSN:18791948
CODEN:ASRSDW
Document type:Journal article (JA)
Publisher:Elsevier Ltd
Abstract:UT1-UTC predictions especially short-term predictions are essential in various fields linked to reference systems such as space navigation and precise orbit determinations of artificial Earth satellites. In this paper, an integrated model combining the grey model GM(1, 1) and neural networks (NN) are proposed for predicting UT1-UTC. In this approach, the effects of the Solid Earth tides and ocean tides together with leap seconds are first removed from observed UT1-UTC data to derive UT1R-TAI. Next the derived UT1R-TAI time-series are de-trended using the GM(1, 1) and then residuals are obtained. Then the residuals are used to train a network. The subsequently predicted residuals are added to the GM(1, 1) to obtain the UT1R-TAI predictions. Finally, the predicted UT1R-TAI are corrected for the tides together with leap seconds to obtain UT1-UTC predictions. The daily values of UT1-UTC between January 7, 2010 and August 6, 2016 from the International Earth Rotation and Reference Systems Service (IERS) 08 C04 series are used for modeling and validation of the proposed model. The results of the predictions up to 30 days in the future are analyzed and compared with those by the GM(1, 1)-only model and combination of the least-squares (LS) extrapolation of the harmonic model including the linear part, annual and semi-annual oscillations and NN. It is found that the proposed model outperforms the other two solutions. In addition, the predictions are compared with those from the Earth Orientation Parameters Prediction Comparison Campaign (EOP PCC) lasting from October 1, 2005 to February 28, 2008. The results show that the prediction accuracy is inferior to that of those methods taking into account atmospheric angular momentum (AAM), i.e., Kalman filter and adaptive transform from AAM to LODR, but noticeably better that of the other existing methods and techniques, e.g., autoregressive filtering and least-squares collocation. 2016 COSPAR
Number of references:22
Main heading:Forecasting
Controlled terms:Earth (planet) - Kalman filters - Least squares approximations - Orbits - Tides
Uncontrolled terms:Artificial Earth satellites - Earth orientation parameters - Grey Model - Least-squares collocation - Modeling and validation - Neural network (nn) - Precise orbit determination - UT1-UTC
Classification code:471.4 Seawater, Tides and Waves - 921.6 Numerical Methods
DOI:10.1016/j.asr.2016.10.030
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<127>
Accession number:20170603335953
Title:Interface modification based ultrashort laser microwelding between SiC and fused silica
Authors:Zhang, Guodong (1, 2); Bai, Jing (1); Zhao, Wei (1); Zhou, Kaiming (1); Cheng, Guanghua (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Cheng, Guanghua(gcheng@opt.ac.cn)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:3
Issue date:February 6, 2017
Publication year:2017
Pages:1702-1709
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:It is a big challenge to weld two materials with large differences in coefficients of thermal expansion and melting points. Here we report that the welding between fused silica (softening point, 1720°C) and SiC wafer (melting point, 3100°C) is achieved with a near infrared femtosecond laser at 800 nm. Elements are observed to have a spatial distribution gradient within the cross section of welding line, revealing that mixing and inter-diffusion of substances have occurred during laser irradiation. This is attributed to the femtosecond laser induced local phase transition and volume expansion. Through optimizing the welding parameters, pulse energy and interval of the welding lines, a shear joining strength as high as 15.1 MPa is achieved. In addition, the influence mechanism of the laser ablation on welding quality of the sample without pre-optical contact is carefully studied by measuring the laser induced interface modification. 2017 Optical Society of America.
Number of references:30
Main heading:Fused silica
Controlled terms:Femtosecond lasers - Infrared devices - Laser ablation - Melting point - Silicon carbide - Thermal expansion - Welding
Uncontrolled terms:Coefficients of thermal expansions - Influence mechanism - Interface modification - Joining strength - Local phase transition - Near infrared femtosecond laser - Softening points - Welding parameters
Classification code:538.2 Welding - 641.2 Heat Transfer - 804.2 Inorganic Compounds - 812.3 Glass - 931.2 Physical Properties of Gases, Liquids and Solids - 951 Materials Science
Numerical data indexing:Pressure 1.51e+07Pa, Size 8.00e-07m, Temperature 1.99e+03K, Temperature 3.37e+03K
DOI:10.1364/OE.25.001702
Funding details: Number: 61378019, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61223007, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC) (61378019, 61223007). The corresponding author thanks Prof. Hong Chang and Dr. Maojie Yang in Institute of Earth Environment, CAS for SEM imaging.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<128>
Accession number:20181605018231
Title:Photonic microwave and RF signal processing based on optical micro-combs
Authors:Xu, Xingyuan (1); Wu, Jiayang (1); Shoeiby, Mehrdad (2); Chu, Sai T. (3); Little, Brent E. (4); Morandotti, Roberto (5); Mitchell, Arnan (2); Moss, David J. (1)
Author affiliation:(1) Centre for Micro-Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (2) School of Engineering, RMIT University, Melbourne; VIC; 3000, Australia; (3) Department of Physics and Material Science, University of Hong Kong, Hong Kong, Hong Kong; (4) Xi'an Institute of Optics and Precision Mechanics Precision Mechanics of CAS, Xi'an, China; (5) INRS - énergie, Matériaux et Télécommunications, Varennes; QC; J3X 1S2, Canada
Source title:Progress in Electromagnetics Research Symposium
Abbreviated source title:Prog. Electromagn. Res. Symp.
Volume:2017-November
Part number:1 of 1
Issue title:2017 Progress In Electromagnetics Research Symposium - Fall, PIERS - FALL 2017 - Proceedings
Issue date:2017
Publication year:2017
Pages:2232-2236
Language:English
ISSN:15599450
E-ISSN:19317360
ISBN-13:9781538612118
Document type:Conference article (CA)
Conference name:2017 Progress In Electromagnetics Research Symposium - Fall, PIERS - FALL 2017
Conference date:November 19, 2017 - November 22, 2017
Conference location:Singapore, Singapore
Conference code:134703
Sponsor:Computer Simulation Technology (CST); et al.; Interhorizon Corporation Pte Ltd.; Linbou Nearfield Technology Co., Ltd.; Office of Naval Research Global; The Electromagnetics Academy
Publisher:Electromagnetics Academy
Abstract:We demonstrate the use of integrated micro-resonator based optical frequency comb sources as the basis for transversal filtering functions for microwave and radio frequency photonic filtering and advanced functions. 2018 Electromagnetics Academy. All rights reserved.
Number of references:40
Main heading:Microwave resonators
Controlled terms:Microelectromechanical devices - Optical signal processing
Uncontrolled terms:Advanced functions - Filtering functions - Micro resonators - Optical frequency comb sources - Photonic microwave - Radio frequency photonics - RF signal processing
Classification code:714 Electronic Components and Tubes
DOI:10.1109/PIERS-FALL.2017.8293510
Funding details:
Funding text:This work was supported by the Australian Research Council Discovery Projects scheme.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<129>
Accession number:20174504371628
Title:Multichannel phase-sensitive amplification in a low-loss CMOS-compatible spiral waveguide
Authors:Zhang, Yanbing (1); Reimer, Christian (1); Wu, Jenny (1); Roztocki, Piotr (1); Wetzel, Benjamin (1, 2); Little, Brent E. (3); Chu, Sai T. (4); Moss, David J. (5); Eggleton, Benjamin J. (6); Kues, Michael (1, 7); Morandotti, Roberto (1, 8, 9)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Mathematical and Physical Sciences, University of Sussex, Falmer; Brighton; BN1 9QH, United Kingdom; (3) State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Science, Xi’an, China; (4) City University of Hong Kong, Department of Physics and Material Science, Tat Chee Avenue, Hong Kong, Hong Kong; (5) Center for Micro-Photonics, Swinburne University of Technology, Hawthorn; VC; 3122, Australia; (6) CUDOS, IPOS, School of Physics, University of Sydney, Sydney; NSW; 2006, Australia; (7) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (8) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China; (9) National Research University of Information Technologies, Mechanics and Optics, St Petersburg, Russia
Corresponding author:Morandotti, Roberto(morandotti@emt.inrs.ca)
Source title:Optics Letters
Abbreviated source title:Opt. Lett.
Volume:42
Issue:21
Issue date:November 1, 2017
Publication year:2017
Pages:4391-4394
Language:English
ISSN:01469592
E-ISSN:15394794
CODEN:OPLEDP
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We investigate single-channel and multichannel phase-sensitive amplification (PSA) in a highly nonlinear, CMOS-compatible spiral waveguide with ultralow linear and negligible nonlinear losses. We achieve a net gain of 10.4 dB and an extinction ratio of 24.6 dB for single-channel operation, as well as a 5 dB gain and a 15 dB extinction ratio spanning over a bandwidth of 24 nm for multiple-channel operation. In addition, we derive a simple analytic solution that enables calculating the maximum phase-sensitive gain in any Kerr medium featuring linear and nonlinear losses. These results not only give a clear guideline for designing PSA-based amplifiers but also show that it is possible to implement both optical regeneration and amplification in a single on-chip device. 2017 Optical Society of America.
Number of references:22
Main heading:Amplification
Controlled terms:CMOS integrated circuits - Light extinction - Waveguides
Uncontrolled terms:Analytic solution - Extinction ratios - Multiple channels - On-chip devices - Optical regeneration - Phase-sensitive amplifications - Single channel operation - Spiral waveguides
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 714.3 Waveguides - 741.1 Light/Optics
Numerical data indexing:Decibel 1.04e+01dB, Decibel 1.50e+01dB, Decibel 2.46e+01dB, Decibel 5.00e+00dB, Size 2.40e-08m
DOI:10.1364/OL.42.004391
Funding details: Number: -, Acronym: ARC, Sponsor: Australian Research Council;Number: DP150104327, Acronym: ARC, Sponsor: Australian Research Council;Number: 074-U01, Acronym: -, Sponsor: -;Number: PIOF-GA-2013-625466, Acronym: -, Sponsor: -;Number: -, Acronym: MSCA, Sponsor: H2020 Marie Skłodowska-Curie Actions;Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;Number: 656607, Acronym: MSCA, Sponsor: Multiple Sclerosis Center of Atlanta;Number: -, Acronym: -, Sponsor: Canada Research Chairs;Number: IT06530, Acronym: -, Sponsor: Mitacs;Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;
Funding text:Funding. Canada Research Chairs (MESI PSR-SIIR); Natural Sciences and Engineering Research Council of Canada (NSERC); Mitacs (IT06530); H2020 Marie Sk?odowska-Curie Actions (MSCA) (656607); European Union’s FP7 Programme (PIOF-GA-2013-625466); ITMO Fellowship and Professorship Program (074-U01); 1000 Talents Sichuan Program; Australian Research Council (ARC) (DP150104327).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<130>
Accession number:20172003669299
Title:Re-weighted discriminatively embedded K-means for multi-view clustering
Authors:Xu, Jinglin (1); Han, Junwei (1); Nie, Feiping (2); Li, Xuelong (3)
Author affiliation:(1) School of Automation, Northwestern Polytechnical University, Xi'an; 710072, China; (2) School of Computer Science, Center for OPTical IMagery Analysis and Learning, Northwestern Polytechnical University, Xi'an; 710072, China; (3) Center for OPTical IMagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Xi'an; 710119, China
Corresponding author:Xu, Jinglin(xujinglinlove@gmail.com)
Source title:IEEE Transactions on Image Processing
Abbreviated source title:IEEE Trans Image Process
Volume:26
Issue:6
Issue date:June 2017
Publication year:2017
Pages:3016-3027
Article number:7847419
Language:English
ISSN:10577149
CODEN:IIPRE4
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Recent years, more and more multi-view data are widely used in many real-world applications. This kind of data (such as image data) is high dimensional and obtained from different feature extractors, which represents distinct perspectives of the data. How to cluster such data efficiently is a challenge. In this paper, we propose a novel multi-view clustering framework, called re-weighted discriminatively embedded K -means, for this task. The proposed method is a multi-view least-absolute residual model, which induces robustness to efficiently mitigates the influence of outliers and realizes dimension reduction during multi-view clustering. Specifically, the proposed model is an unsupervised optimization scheme, which utilizes iterative re-weighted least squares to solve least-absolute residual and adaptively controls the distribution of multiple weights in a re-weighted manner only based on its own low-dimensional subspaces and a common clustering indicator matrix. Furthermore, theoretical analysis (including optimality and convergence analysis) and the optimization algorithm are also presented. Compared with several state-of-the-art multi-view clustering methods, the proposed method substantially improves the accuracy of the clustering results on widely used benchmark data sets, which demonstrates the superiority of the proposed work. 1992-2012 IEEE.
Number of references:48
Main heading:Iterative methods
Controlled terms:Clustering algorithms
Uncontrolled terms:Convergence analysis - Dimension reduction - Iterative reweighted least square - K-means - Low-dimensional subspace - Multi-view clustering - Optimization algorithms - Optimization scheme
Classification code:903.1 Information Sources and Analysis - 921.6 Numerical Methods
DOI:10.1109/TIP.2017.2665976
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<131>
Accession number:20170803363276
Title:Resonance spiking by periodic loss in the double-sided liquid cooling disk oscillator
Authors:Nie, Rongzhi (1, 2); She, Jiangbo (1); Li, Dongdong (4); Li, Fuli (2); Peng, Bo (1, 3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi'an; 710119, China; (2) School of Science, Xi'An Jiaotong University, Xi'an; 710049, China; (3) Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu; 210046, China; (4) School of Electronic Engineering, Xi'An University of Post and Telecommunications, Xi'an; 710121, China
Source title:Laser Physics
Abbreviated source title:Laser Phys.
Volume:27
Issue:3
Issue date:March 2017
Publication year:2017
Article number:035002
Language:English
ISSN:1054660X
E-ISSN:15556611
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:A double-sided liquid cooling Nd:YAG disk oscillator working at a pump repetition rate of 20 Hz is demonstrated. The output energy of 376 mJ is realized, corresponding to the optical-optical efficiency of 12.8% and the slope efficiency of 14%. The pump pulse width is 300 μs and the laser pulse width is 260 μs. Instead of being a damped signal, the output of laser comprises undamped spikes. A periodic intra-cavity loss was found by numerical analysis, which has a frequency component near the eigen frequency of the relaxation oscillation. Resonance effect will induce amplified spikes even though the loss fluctuates in a small range. The Shark-Hartmann sensor was used to investigate the wavefront aberration induced by turbulent flow and temperature gradient. According to the wavefront and fluid mechanics analysis, it is considered that the periodic intra-cavity loss can be attributed to turbulent flow and temperature gradient. 2017 Astro Ltd.
Number of references:25
Main heading:Aberrations
Controlled terms:Cooling - Disks (machine components) - Fluid mechanics - Liquid lasers - Liquids - Optical pumping - Resonance - Thermal gradients - Turbulent flow - Wavefronts - Yttrium aluminum garnet
Uncontrolled terms:Disk lasers - Frequency components - Liquid cooling - Optical-optical efficiency - Relaxation oscillation - Shark-Hartmann sensor - Slope efficiencies - Wavefront aberrations
Classification code:601.2 Machine Components - 631.1 Fluid Flow, General - 641.1 Thermodynamics - 641.2 Heat Transfer - 744.3 Liquid Lasers - 931.1 Mechanics
Numerical data indexing:Energy 3.76e-01J, Frequency 2.00e+01Hz, Percentage 1.28e+01%, Percentage 1.40e+01%, Time 2.60e-04s, Time 3.00e-04s
DOI:10.1088/1555-6611/aa5c10
Funding details: Number: 2016JQ6016, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 61308086, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is financially supported by the National Natural Science Foundation of China (NSFC, No. 61308086) and Natural Science Basic Research Plan in Shaanxi Province of China (No: 2016JQ6016).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<132>
Accession number:20182405306595
Title:Microwave and RF applications of micro-combs
Authors:Xu, Xingyuan (1); Wu, Jiayang (1); Shoeiby, Mehrdad (2); Chu, Sai T. (3); Little, Brent E. (4); Morandotti, Roberto (5); Mitchell, Arnan (2); Moss, David J. (1)
Author affiliation:(1) Centre for Micro-Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (2) School of Engineering, RMIT University, Melbourne; VIC; 3000, Australia; (3) Department of Physics and Material Science, City University of Hong Kong, Hong Kong, Hong Kong; (4) Xi'An Institute of Optics and Precision Mechanics Precision Mechanics of CAS, Xi'an, China; (5) INRS-énergie, Matériaux et Télécommunications, Varennes; QC; J3X 1S2, Canada
Source title:2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
Abbreviated source title:Opto-Electron. Commun. Conf., OECC Photonics Glob. Conf., PGC
Volume:2017-November
Part number:1 of 1
Issue title:2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
Issue date:November 17, 2017
Publication year:2017
Pages:1-4
Language:English
ISBN-13:9781509062935
Document type:Conference article (CA)
Conference name:2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
Conference date:July 31, 2017 - August 4, 2017
Conference location:Singapore, Singapore
Conference code:132616
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We demonstrate the use of integrated micro-resonator based optical frequency comb sources as the basis for transversal filtering functions for microwave and radio frequency photonic filtering and advanced functions. 2017 IEEE.
Number of references:32
Main heading:Microwave resonators
Controlled terms:Crystal resonators - Microelectromechanical devices - Microwaves - Photonics
Uncontrolled terms:Advanced functions - Filtering functions - Frequency combs - Micro resonators - Optical frequency comb sources - Radio frequency photonics - RF applications
Classification code:711 Electromagnetic Waves - 713.5 Electronic Circuits Other Than Amplifiers, Oscillators, Modulators, Limiters, Discriminators or Mixers - 714 Electronic Components and Tubes - 741.1 Light/Optics
DOI:10.1109/OECC.2017.8115044
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<133>
Accession number:20174804481697
Title:A multi-task framework for weather recognition
Authors:Li, Xuelong (1); Wang, Zhigang (2); Lu, Xiaoqiang (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710019, China; (2) School of Computer Science, Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China
Source title:MM 2017 - Proceedings of the 2017 ACM Multimedia Conference
Abbreviated source title:MM - Proc. ACM Multimed. Conf.
Part number:1 of 1
Issue title:MM 2017 - Proceedings of the 2017 ACM Multimedia Conference
Issue date:October 23, 2017
Publication year:2017
Pages:1318-1326
Language:English
ISBN-13:9781450349062
Document type:Conference article (CA)
Conference name:25th ACM International Conference on Multimedia, MM 2017
Conference date:October 23, 2017 - October 27, 2017
Conference location:Mountain View, CA, United states
Conference code:131373
Sponsor:ACM SIGMM
Publisher:Association for Computing Machinery, Inc
Abstract:Weather recognition is important in practice, while this task has not been thoroughly explored so far. The current trend of dealing with this task is treating it as a single classification problem, i.e., determining whether a given image belongs to a certain weather category or not. However, weather recognition differs significantly from traditional image classification, since several weather features may appear simultaneously. In this case, a simple classification result is insufficient to describe the weather condition. To address this issue, we propose to provide auxiliary weather related information for comprehensive weather description. Specifically, semantic segmentation of weather-cues, such as blue sky and white clouds, is exploited as an auxiliary task in this paper. Moreover, a convolutional neural network (CNN) based multi-task framework is developed which aims to concurrently tackle weather category classification task and weather-cues segmentation task. Due to the intrinsic relationships between these two tasks, exploring auxiliary semantic segmentation of weather-cues can also help to learn discriminative features for the classification task, and thus obtain superior accuracy. To verify the effectiveness of the proposed approach, extra segmentation masks of weather-cues are generated manually on an existing weather image dataset. Experimental results have demonstrated the superior performance of our approach. The enhanced dataset, source codes and pre-trained models are available at https://github.com/wzgwzg/Multitask-Weather. 2017 ACM.
Number of references:38
Main heading:Classification (of information)
Controlled terms:Convolution - Image segmentation - Neural networks - Semantics
Uncontrolled terms:Category Classification - Classification results - Convolutional neural network - Convolutional Neural Networks (CNN) - Discriminative features - Multitask learning - Semantic segmentation - Weather recognition
Classification code:716.1 Information Theory and Signal Processing
DOI:10.1145/3123266.3123382
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<134>
Accession number:20182205244172
Title:A Bayesian-adaboost model for stock trading rule discovery
Authors:Kong, Zhoufan (1); Yang, Jie (1); Huang, Qinghua (1); Li, Xuelong (2)
Author affiliation:(1) School of Electronica Information Engineering, South China University of Technology, Guangzhou; 510641, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Xi'an, Shaanxi; 710119, China
Corresponding author:Huang, Qinghua(qhhuang@scut.edu.cn)
Source title:Proceedings - 2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2017
Abbreviated source title:Proc. - Int. Congr. Image Signal Process., BioMed. Eng. Inf., CISP-BMEI
Volume:2018-January
Part number:1 of 1
Issue title:Proceedings - 2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2017
Issue date:July 2, 2017
Publication year:2017
Pages:1-6
Language:English
ISBN-13:9781538619377
Document type:Conference article (CA)
Conference name:10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2017
Conference date:October 14, 2017 - October 16, 2017
Conference location:Shanghai, China
Conference code:135071
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Detecting the trading patterns with different technical indicators from the historical financial data is an efficient way to forecast the trading decisions in the financial market. In most cases, the trading patterns which consist of some specific combinations of technical indicators are significant in predicting the efficient trading decisions. However, discovering those combinations is a rather challenge assignment. In this paper, we propose a novel method to detect the trading patterns and later the Naive bayes with Adaboost method was employed to determine the trading decisions. The proposed method has been implemented on two historical stock datasets, the experimental results demonstrate that the proposed algorithm outperforms the other three algorithms and could provide a worthwhile reference for the financial investments. 2017 IEEE.
Number of references:30
Main heading:Commerce
Controlled terms:Adaptive boosting - Biomedical engineering - Electronic trading - Financial markets - Forecasting - Image processing
Uncontrolled terms:AdaBoost model - Biclusters - Financial data - Financial investments - Naive Bayeians method - Stock predictions - Technical indicator - Trading patterns
Classification code:461.1 Biomedical Engineering - 723 Computer Software, Data Handling and Applications - 723.5 Computer Applications
DOI:10.1109/CISP-BMEI.2017.8302138
Funding details: Number: 2014A050503020, Acronym: -, Sponsor: -;Number: 61571193, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:ACKNOWLEDGMENT This work was partially supported by National Natural Science Foundation of China (Nos. 61372007 and 61571193), and Guangdong Provincial Science and Technology Program - International Collaborative Projects (No. 2014A050503020).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<135>
Accession number:20183105646934
Title:A markerless visual-motor tracking system for behavior monitoring in DCD assessment
Authors:Li, Shengyan (1); Li, Bin (1, 2); Zhang, Shixiong (1); Fu, Hong (1); Lo, Wai-Lun (1); Yu, Jie (3); Sit, Cindy H. P. (3); Li, Ruimin (1, 2)
Author affiliation:(1) Department of Computer Science, Chu Hai College of Higher Education, Hong Kong, Hong Kong; (2) Xi'An Institute of Optics and Precision Mechanics of CAS, University of Chinese Academy of Sciences, Beijing, China; (3) Department of Sports Science and Physical Education, Chinese University of Hong Kong, Shatin, Hong Kong
Corresponding author:Fu, Hong(hfu@chuhai.edu.hk)
Source title:Proceedings - 9th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2017
Abbreviated source title:Proc. - Asia-Pacific Signal Inf. Process. Assoc. Annu. Summit Conf., APSIPA ASC
Volume:2018-February
Part number:1 of 1
Issue title:Proceedings - 9th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2017
Issue date:July 2, 2017
Publication year:2017
Pages:774-777
Language:English
ISBN-13:9781538615423
Document type:Conference article (CA)
Conference name:9th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2017
Conference date:December 12, 2017 - December 15, 2017
Conference location:Kuala Lumpur, Malaysia
Conference code:134570
Sponsor:DOLBY; et al.; Microsoft; Mobvoi; National Instruments; Sogou
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Development coordination disorder (DCD) is a disorder of visual-motor integration in children, so the study on coordination of vision and motion is essential to understand the mechanism of DCD. The standardized assessments with certain visual-motor tasks are often used to detect impairments in eye-motion coordination, which is the most important component for diagnosis of DCD. However, these assessments emphasize on motor performance of children, while ignoring the detailed process of eye-motion coordination in performing these tasks. Therefore, it is a need to develop a proper digital visual-motor system to detect the eye movement and body motion simultaneously during these tasks, to study the mechanism of a typical eye-motion coordination. Currently, the eye-motion system is based on marker to detect the joints and gaze points for integration. This kind of system is very expensive and the markers may affect children's behavior in the task of DCD assessment. In this study, an integrated and markerless eye-motion system is developed to detect children's behavior in DCD assessment. In this system, a multi-Kinect system is used to monitor body motion and extract the skeletal joints. The gaze point is detected by a head-mount eye tracker and will be integrated into the system of body motion using image processing method. With the proposed system, the skeletal joints and gaze points can be obtained simultaneously for further digital DCD assessment. 2017 IEEE.
Number of references:6
Main heading:Eye tracking
Controlled terms:Eye movements - Image processing - Monitoring - Motion planning - Processing
Uncontrolled terms:Behavior monitoring - Image processing - methods - Motion coordination - Motor performance - Skeletal joints - Tracking system - Visual motor integrations - Visual-motor task
Classification code:913.4 Manufacturing
DOI:10.1109/APSIPA.2017.8282139
Funding details: Number: -, Acronym: -, Sponsor: Canadian Anesthesiologists' Society;Number: -, Acronym: -, Sponsor: University of Chinese Academy of Sciences;Number: -, Acronym: -, Sponsor: Chinese University of Hong Kong;Number: UGC/FDS13/E02/16, Acronym: -, Sponsor: -;
Funding text:1 Department of Computer Science, Chu Hai College of Higher Education, Hong Kong 2 Xi’an Institute of Optics and Precision Mechanics of CAS, University of Chinese Academy of Sciences, Beijing, China 3 Department of Sports Science and Physical Education, The Chinese University of Hong Kong, Shatin, Hong Kong * Corresponding Author, E-mail: hfu@chuhai.edu.hk, Tel: +852-29727250The work described in this paper was fully supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project Reference No.: UGC/FDS13/E02/16).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<136>
Accession number:20172703889299
Title:Large-area micro-channel plate photomultiplier tube
Authors:Sun, Jianning (1); Ren, Ling (1); Cong, Xiaoqing (1); Huang, Guorui (1); Jin, Muchun (1); Li, Dong (1); Liu, Hulin (3); Qiao, Fangjian (1); Qian, Sen (2); Si, Shuguang (1); Tian, Jinshou (2); Wang, Xingchao (1); Wang, Yifang (2); Wei, Yonglin (3); Xin, Liwei (3); Zhang, Haoda (1); Zhao, Tianchi (2)
Author affiliation:(1) North Night Vision Technology Co., Ltd, Nanjing; 211100, China; (2) Institute of High Energy Physics, Chinese Academy of Sciences, Beijing; 100049, China; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Abbreviated source title:Hongwai yu Jiguang Gongcheng Infrared Laser Eng.
Volume:46
Issue:4
Issue date:April 25, 2017
Publication year:2017
Article number:0402001
Language:Chinese
ISSN:10072276
Document type:Journal article (JA)
Publisher:Chinese Society of Astronautics
Abstract:According to the requirement of detector in high energy physics and nuclear physics national scientific equipment, the large-area micro-channel plate photomultiplier(MCP-PMT) different from dynode PMT was researched. The large-area MCP-PMT had low-background glass and microchannel plate multiplier. Using Sb-K-Cs as photocathode, MCP-PMT enjoyed very high quantum efficiency at 350- 450 nm. With double MCPs as electron amplifier, the gain could reach 107. The detection efficiency and single photon detection of large-area PMT was improved. Compared with conventional dynode PMT, this MCP-PMT is a completely new design in structure and has better ratio of spectrum peak to valley, high gain, better anode uniformity, fast response time in single photoelectron detection. 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
Number of references:10
Main heading:Image storage tubes
Controlled terms:Microchannels - Particle beams - Photoelectron spectroscopy - Photomultipliers - Photons - Plates (structural components) - Quantum efficiency
Uncontrolled terms:Detection efficiency - High quantum efficiency - Low background - Micro channel plate - Micro-channel plate photomultiplier tubes - Scientific equipment - Single photoelectrons - Single photon detection
Classification code:408.2 Structural Members and Shapes - 714.1 Electron Tubes - 931.3 Atomic and Molecular Physics - 931.4 Quantum Theory; Quantum Mechanics - 932.1 High Energy Physics
Numerical data indexing:Size 3.50e-07m to 4.50e-07m
DOI:10.3788/IRLA201746.0402001
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<137>
Accession number:20173704143891
Title:Ti:Sapphire Femtosecond Pulses Pumped Directly by Green Diode Lasers
Authors:Wang, Xianglin (1, 2); Hu, Xiaohong (1, 2); Xu, Peng (1); Zhang, Wei (1); Yang, Zhi (1); Wang, Yishan (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Wang, Yishan(yshwang@opt.ac.cn)
Source title:Zhongguo Jiguang/Chinese Journal of Lasers
Abbreviated source title:Zhongguo Jiguang
Volume:44
Issue:7
Issue date:July 10, 2017
Publication year:2017
Article number:0701002
Language:Chinese
ISSN:02587025
CODEN:ZHJIDO
Document type:Journal article (JA)
Publisher:Science Press
Abstract:The laser beams emitted from a pair of 520 nm/1.45 W green diode lasers are shaped and focused on a Ti:sapphire laser crystal to complete the pumping process. The intracavity dispersion is compensated by using the GTI (Gires-Tournois interferometer) mirrors. The stable Kerr-lens mode locking state is achieved with an output pulse width of 91 fs, an output power of 208 mW, and a single pulse energy of 1.59 nJ. The narrowest pulse width of 82 fs is further realized after the optimization of cavity-type parameters and the maximum output power reaches 232 mW when the cavity length is shortened. 2017, Chinese Lasers Press. All right reserved.
Number of references:16
Main heading:Optical pumping
Controlled terms:Diodes - Electromagnetic pulse - Laser accessories - Laser beams - Laser mode locking - Locks (fasteners) - Q switched lasers - Sapphire - Semiconductor lasers - Ultrashort pulses
Uncontrolled terms:Diode laser pumping - Gires-Tournois interferometers - Intra-cavity dispersion - Kerr lens mode locking - Laser technique - Maximum output power - Single pulse energy - Ti: Sapphire laser
Classification code:482.2.1 Gems - 701 Electricity and Magnetism - 744 Lasers
Numerical data indexing:Time 8.20e-14s, Time 9.10e-14s, Energy 1.59e-09J, Power 2.08e-01W, Power 2.32e-01W
DOI:10.3788/CJL201744.0701002
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<138>
Accession number:20171903648492
Title:A generalized power iteration method for solving quadratic problem on the Stiefel manifold
Authors:Nie, Feiping (1); Zhang, Rui (1); Li, Xuelong (2)
Author affiliation:(1) School of Computer Science and Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi’an; 710072, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China
Corresponding author:Nie, Feiping(feipingnie@gmail.com)
Source title:Science China Information Sciences
Abbreviated source title:Sci. China Inf. Sci.
Volume:60
Issue:11
Issue date:November 1, 2017
Publication year:2017
Article number:112101
Language:English
ISSN:1674733X
E-ISSN:18691919
Document type:Journal article (JA)
Publisher:Science in China Press
Abstract:In this paper, we first propose a novel generalized power iteration (GPI) method to solve the quadratic problem on the Stiefel manifold (QPSM) as minWTW=I Tr(WTAW ？ 2WTB) along with the theoretical analysis. Accordingly, its special case known as the orthogonal least square regression (OLSR) is under further investigation. Based on the aforementioned studies, we then majorly focus on solving the unbalanced orthogonal procrustes problem (UOPP). As a result, not only a general convergent algorithm is derived theoretically but the efficiency of the proposed approach is verified empirically as well. 2017, Science China Press and Springer-Verlag Berlin Heidelberg.
Number of references:18
Main heading:Problem solving
Controlled terms:Iterative methods
Uncontrolled terms:Orthogonal least squares - power iteration - Procrustes problem - Quadratic problem - Stiefel manifold
Classification code:921.6 Numerical Methods
DOI:10.1007/s11432-016-9021-9
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<139>
Accession number:20173804179887
Title:Polarization control methods in structured illumination microscopy
Authors:Zhao, Tian-Yu (1, 2); Zhou, Xing (1); Dan, Dan (1); Qian, Jia (1); Wang, Zhao-Jun (1); Lei, Ming (1); Yao, Bao-Li (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Lei, Ming(leiming@opt.ac.cn)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:14
Issue date:July 20, 2017
Publication year:2017
Article number:148704
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:Structured illumination microscopy (SIM) is one of the most promising super-resolution techniques, owing to its advantages of fast imaging speed and weak photo bleaching. The quality of the SIM image is greatly dependent on the contrast of the sinusoidal fringe illumination patterns. Low fringe contrast illumination will seriously affect the super-resolution result and lead to additional artifacts. The generation of fringe patterns with high contrast is the key requirement in hardware for the SIM technique. This can be done by the interference of two laser beams diffracted from the phase gratings addressed on a spatial light modulator. Meanwhile, for maximal interference contrast, precise polarization control to maintain s-polarization for different fringe orientations is critical. In this paper, we review several typical polarization control methods in SIM, and propose a new method by using a zero-order vortex half-wave retarder (VHR). Compared with the other methods, the presented VHR-based polarization control method is very efficient in terms of simple system configuration, ease of use, and high light energy utilization efficiency near to 100%. 2017 Chinese Physical Society.
Number of references:22
Main heading:Polarization
Controlled terms:Energy utilization - Laser beams - Light modulators - Optical resolving power - Vortex flow
Uncontrolled terms:Half-wave - Illumination patterns - Polarization control - Polarization control methods - Spatial light modulators - Structured illumination microscopies (SIM) - Structured illumination microscopy - Super resolution
Classification code:525.3 Energy Utilization - 631.1 Fluid Flow, General - 741.1 Light/Optics - 744.8 Laser Beam Interactions
Numerical data indexing:Percentage 1.00e+02%
DOI:10.7498/aps.66.148704
Funding details: Number: 11404389, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11474352, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61522511, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 81427802, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Project supported by the National Natural Science Foundation of China (Grant Nos. 61522511, 11404389, 81427802, 11474352) and the Basic Research Plan of Natural Science in Shaanxi Province, China (Grant No. 2016JZ020).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<140>
Accession number:20181004853707
Title:Speckle-correlation imaging through scattering media with hybrid bispectrum-iteration algorithm
Authors:Zhou, Meiling (1, 2, 3); Singh, Alok Kumar (1); Pedrini, Giancarlo (1); Osten, Wolfgang (1); Min, Junwei (2); Yao, Baoli (2)
Author affiliation:(1) University of Stuttgart, Institut für Technische Optik ITO, Stuttgart, Germany; (2) Chinese Academy of Sciences, Xi'An Institute of Optics and Precision Mechanics, State Key Laboratory of Transient Optics and Photonics, Xi'an, China; (3) University of Chinese Academy of Sciences, Beijing, China
Corresponding author:Yao, Baoli(yaobl@opt.ac.cn)
Source title:Optical Engineering
Abbreviated source title:Opt Eng
Volume:56
Issue:12
Issue date:December 1, 2017
Publication year:2017
Article number:123102
Language:English
ISSN:00913286
E-ISSN:15602303
CODEN:OPEGAR
Document type:Journal article (JA)
Publisher:SPIE
Abstract:We present an improved iteration algorithm for speckle-correlation imaging through scattering media. We employ an approximate solution obtained from a bispectrum-analysis method as the initial condition of the iterative process. This method avoids several different runs performed with different random initial conditions in the traditional iteration algorithm and reduces the execution time in comparison with the conventional bispectrum-analysis method. Therefore, we obtain a balance between image quality and reconstruction speed. The feasibility of the proposed method is proved by the experimental results. 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).
Number of references:25
Main heading:Iterative methods
Controlled terms:Speckle
Uncontrolled terms:Approximate solution - Bispectrum analysis - initial input - Iteration algorithms - Iterative algorithm - Random initial conditions - Reconstruction speed - Speckle correlations
Classification code:741.1 Light/Optics - 921.6 Numerical Methods
DOI:10.1117/1.OE.56.12.123102
Funding details: Number: -, Acronym: -, Sponsor: Universit？t Stuttgart;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61377008, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61475187, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61405242, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Meiling Zhou is grateful to Chinese Academy of Sciences for supporting her study at the Institut für Technische Optik (ITO), Universit?t Stuttgart through the Joint Training PhD Program UCAS[2015]42. This research was supported by the Natural Science Foundation of China (NSFC) under Grant Nos. 61377008, 61405242, and 61475187.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<141>
Accession number:20175204584523
Title:SCECam: a spherical compound eye camera for fast location and recognition of objects at a large field of view
Authors:Shi, Chengyong (1, 2); Wang, Yuanyuan (1, 2); Liu, Chenyang (1, 2); Wang, Taisheng (1); Zhang, Hongxin (1); Liao, Wuxia (3); Xu, Zhijun (1); Yu, Weixing (4)
Author affiliation:(1) State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, No. 3888, Dongnanhu Road, Changchun, Jinlin, China; (2) University of the Chinese Academy of Sciences, Beijing; 10039, China; (3) School of Electronic Engineering, Chengdu Technological University, No. 1, Zhongxin Road, Chengdu; 611730, China; (4) Key Laboratory of Spectral Imaging Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No. 17, Xinxi Road, Xian; 710119, China
Corresponding author:Yu, Weixing(yuwx@opt.ac.cn)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:26
Issue date:December 25, 2017
Publication year:2017
Pages:32333-32345
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:In recent years, the compound eye imaging system has attracted great attention due to its fascinating optical features such as large field of view (FOV), small volume and high acuity to moving objects. However, it is still a big challenge to fabricate such a whole system due to the mismatch between the spherical compound eye imaging element and the planar imaging sensor. In this work, we demonstrate a kind of hemispherical compound eye camera (SCECam) which analogs the eye of the fruit fly. The SCECam consists of three sub-systems, a hemispherical compound eye, an optical relay system and a commercial CMOS imaging sensor. By introducing an intermediate optical relay system, the curved focal plane after the compound eye can be transformed and projected onto the planar focal plane of the imaging sensor. In this way, the SCECam can realize a large FOV (up to 122.4°) with 4400 ommatidia, which makes it possible to detect and locate fast moving objects at a very fast speed. It is calculated that the recognition speed of the SCECam is two to three orders of magnitude higher than those conventional methods such as the Canny and Log edge-detection methods. 2017 Optical Society of America.
Number of references:28
Main heading:Cameras
Controlled terms:Edge detection - Focusing
Uncontrolled terms:CMOS imaging sensor - Compound-eye camera - Conventional methods - Edge detection methods - Large field of views - Location and recognition - Recognition speed - Three orders of magnitude
Classification code:742.2 Photographic Equipment
DOI:10.1364/OE.25.032333
Funding details: Number: 61361166004, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61475156, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC) (61475156 and 61361166004).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<142>
Accession number:20173003988115
Title:Efficiency analysis of 808 nm laser diode array under different operating temperatures
Authors:Song, Yun-Fei (1, 2); Wang, Zhen-Fu (1); Li, Te (1); Yang, Guo-Wen (1, 3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Xi'an Lumcore Optoelectronics Technologies Co., Ltd, Xi'an; 710077, China
Corresponding author:Yang, Guo-Wen(yangguowen@opt.ac.cn)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:10
Issue date:May 20, 2017
Publication year:2017
Article number:104202
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:The 808 nm high-efficiency laser diodes have many advantages, such as high output power, high reliabilities, compact sizes, which are widely used in many areas, such as industry, communication, science, medicine and biology. In order to improve the power conversion efficiencies of 808 nm laser diodes, the following requirements must be considered, such as loss of joule heating, loss by the carrier leakage, spontaneous radiation loss below the threshold current, loss by interface voltage defect, internal losses including free-carrier absorption loss and scattering loss. These losses above are closely related to the operating temperature of laser diode. In this paper, power conversion efficiency analysis is demonstrated from the aspects of the output power, threshold current, slope efficiency, voltage, and series resistance at different temperatures.. This is the first time that the detailed study has been carried out under various temperatures (up to the lowest temperature of -40℃). And the detailed study above can be of benefit to designing the wafer epitaxial structure. High-power 808 nm laser diode arrays are mounted on conduction cooled heatsinks. And the laser chips have 47 emitters with 50% in fill factor, 100 μm stripe in width and 1.5 mm in cavity length. The asymmetric broad waveguide epitaxial structure with lower absorption loss in p-type waveguide and cladding layer is designed in order to reduce the internal losses. The device performances are measured under operating temperatures ranging from -40℃ to 25℃ including the output power, threshold current, slope efficiency, series resistance, voltage, etc. Then the power conversion efficiency of 808 nm laser diode arrays are demonstrated from the output characteristics at different operating temperatures. With temperature decreasing, the series resistance gradually increases. The loss of joule heating ratio rises from 7.8% to 10.3%. In that case, the high series resistance is the major factor to prevent the efficiency from further improving at a low temperature of -40℃. As temperature decreases from 25℃ to -40℃, the carrier leakage ratio is reduced from 16.6% to 3.1%, the carrier leakage is the dominant factor for increasing efficiency, which means that it is necessary to optimize the epitaxial structure in order to reduce the carrier leakage at the room temperature. Comparing the two different work temperatures from -30℃ to -40℃, the carrier leakage ratio only changes 0.1%, which implies that the carrier leakage could be ignored under the low temperature. Meanwhile, as temperature decreases from 25℃ to -40℃, the power conversion efficiency increases from 56.7% to 66.8%. 2017 Chinese Physical Society.
Number of references:19
Main heading:Efficiency
Controlled terms:Conversion efficiency - Diodes - Electric resistance - Joule heating - Semiconductor lasers - Temperature - Waveguides
Uncontrolled terms:Free carrier absorption - High series resistances - High-efficiency lasers - Laser chips - Operating temperature - Output characteristics - Power conversion efficiencies - Spontaneous radiation
Classification code:525.5 Energy Conversion Issues - 641.1 Thermodynamics - 701.1 Electricity: Basic Concepts and Phenomena - 714.3 Waveguides - 744.4.1 Semiconductor Lasers - 913.1 Production Engineering
Numerical data indexing:Percentage 1.00e-01%, Percentage 1.66e+01% to 3.10e+00%, Percentage 5.00e+01%, Percentage 5.67e+01% to 6.68e+01%, Percentage 7.80e+00% to 1.03e+01%, Size 1.00e-04m, Size 1.50e-03m, Size 8.08e-07m
DOI:10.7498/aps.66.104202
Funding details: Number: Y429941233, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61504167, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Project supported by the National Natural Science Foundation of China (Grant No. 61504167) and the "100 Talents Project" of Chinese Academy of Sciences, China (Grant No. Y429941233).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<143>
Accession number:20174904498761
Title:Graphene oxide-COOH as a new saturable absorber for both Q-switching and mode-locking fiber lasers
Authors:Zhao, Fengyan (1, 2); Wang, Yishan (1); Wang, Yonggang (3); Wang, Hushan (1, 2); Cai, Yajun (1, 2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) School of Physics and Information Technology, Shaanxi Normal University, Xi'an; 710119, China
Corresponding author:Wang, Yishan(yshwang@opt.ac.cn)
Source title:Chinese Optics Letters
Abbreviated source title:Chin. Opt. Lett.
Volume:15
Issue:10
Issue date:October 10, 2017
Publication year:2017
Article number:101402
Language:English
ISSN:16717694
Document type:Journal article (JA)
Publisher:Science Press
Abstract:Graphene oxide carboxylic acid (COOH), a novel two-dimensional (2D) layered material with its unique optical and electronic properties, is discovered to exhibit the saturation of optical absorption under laser illumination. Applying the liquid-phase exfoliation method, we prepare graphene oxide-COOH dispersions with deionized water and fabricate graphene oxide-COOH polyvinyl alcohol polymer composite film. We further obtain stable Q-switching pulse and mode-locked laser operation with a 22.7 MHz repetition rate and a 1.5 ps pulse duration by incorporating the graphene oxide-COOH-based saturable absorbers into the all-fiber erbium-doped fiber laser cavity. The experimental results show that the proposed graphene oxide-COOH material can act as an effective absorber for pulsed fiber lasers, which demonstrate potential applications in the area of ultrafast optics. 2017 Chinese Optics Letters.
Number of references:31
Main heading:Graphene
Controlled terms:Composite films - Deionized water - Dispersions - Electronic properties - Fiber lasers - Fibers - Light absorption - Locks (fasteners) - Mode-locked fiber lasers - Pulse repetition rate - Pulsed lasers - Q switched lasers - Q switching - Saturable absorbers - Semiconductor quantum wells
Uncontrolled terms:Erbium doped fiber laser - Laser illumination - Layered material - Mode-locked laser operation - Optical and electronic properties - Pulsed fiber lasers - Q-switching and mode-locking - Two Dimensional (2 D)
Classification code:445.1 Water Treatment Techniques - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 744 Lasers - 761 Nanotechnology - 804 Chemical Products Generally - 951 Materials Science
Numerical data indexing:Frequency 2.27e+07Hz, Time 1.50e-12s
DOI:10.3788/COL201715.101402
Funding details: Number: -, Acronym: SAFEA, Sponsor: State Administration of Foreign Experts Affairs;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61690222, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China (No. 61690222) and the CAS/ SAFEA international Partnership Program for creative Research Teams.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<144>
Accession number:20173003968760
Title:Development of 2.5 THz suspended porous microstructured fiber based on cyclic-olefin copolymer
Authors:Chen, Qi (1); Zhu, Wenjing (1); Kong, Depeng (2); He, Xiaoyang (1); Li, Bo (1); Miao, Jing (2); Luo, Zhenfei (3); Zhou, Xun (3); Yang, Chun (1); Zhang, Jian (1)
Author affiliation:(1) Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang; 621999, China; (2) Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian, 710119, China; (3) Research Center of Laser Fusion, China Academy of Engineering Physics, Chengdu; 610041, China
Corresponding author:Li, Bo(libocaepiee@163.com)
Source title:Optik
Abbreviated source title:Optik
Volume:145
Issue date:September 2017
Publication year:2017
Pages:56-60
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Elsevier GmbH
Abstract:Efficient transmission of terahertz (THz) wave is very important in the development of THz technology. Polymer microstructured fiber is ideal in THz waveguide transmission for its advantages of low loss, low dispersion and good flexibility to bend. Based on the full vector finite element method, a suspended porous microstructured fiber with the operating frequency of 2.5 THz was designed. Fiber samples made of cyclic-olefin copolymer were fabricated, and their transmission performances were measured by using the CO
Number of references:18
Main heading:Terahertz waves
Controlled terms:Fibers - Finite element method - Microstructure - Olefins - Pumping (laser)
Uncontrolled terms:Cyclic Olefin Copolymers - Full vector finite element methods - Fundamental modes - Microstructured fibers - Operating frequency - Suspended porous - Tera Hertz - Transmission performance
Classification code:711 Electromagnetic Waves - 744.1 Lasers, General - 804.1 Organic Compounds - 921.6 Numerical Methods - 951 Materials Science
Numerical data indexing:Percentage 5.00e+00%
DOI:10.1016/j.ijleo.2017.06.124
Funding details: Number: -, Acronym: CACMS, Sponsor: China Academy of Chinese Medical Sciences;Number: CAEPTHZ201307, Acronym: -, Sponsor: China Academy of Engineering Physics THz Science and Technology Foundation;Number: 11504416, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is financially supported by the National Natural Science Foundation of China (No. 11504416), China Academy of Engineering Physics THz Science and Technology Foundation under the Grant No. CAEPTHZ201307, and China Academy of Science ?Light of West China? Program (Title: Novel polymer microstructured graded-index terahertz fiber).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<145>
Accession number:20172603861820
Title:Graphene on meta-surface for superresolution optical imaging with a sub-10 nm resolution
Authors:Cao, Shun (1, 2); Wang, Taisheng (1); Sun, Qiang (1); Hu, Bingliang (3); Levy, Uriel (4); Yu, Weixing (3)
Author affiliation:(1) State Key Laboratory of Applied Optics, Changchun Institute of Optics, Chinese Academy of Sciences, No.3888, Dongnanhu Road, Changchun, Jilin, China; (2) University of the Chinese Academy of Sciences, Beijing; 10039, China; (3) Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No.17, Xinxi Road, Xian; 710119, China; (4) Department of Applied Physics, Benin School of Engineering and Computer Science, Hebrew University of Jerusalem, Jerusalem; 91904, Israel
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:13
Issue date:June 26, 2017
Publication year:2017
Pages:14494-14503
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:Nowadays, wide-field of view plasmonic structured illumination method (WFPSIM) has been extensively studied and experimentally demonstrated in biological researches. Normally, noble metal structures are used in traditional WFPSIM to support ultrahigh wave-vector of SPs and an imaging resolution enhancement of 3-4 folds can be achieved. To further improve the imaging resolution of WFPSIM, we hereby propose a widefield optical nanoimaging method based on a hybrid graphene on meta-surface structure (GMS) model. It is found that an ultra-high wave-vector of graphene SPs can be excited by a metallic nanoslits array with localized surface plasmon enhancement. As a result, a standing wave surface plasmons (SW-SPs) interference pattern with a period of 11 nm for a 980 nm incident wavelength can be obtained. The potential application of the GMS for wide-field of view super-resolution imaging is discussed followed by simulation results which show that an imaging resolution of sub-10 nm can be achieved. The demonstrated method paves a new route for wide field optical nanoimaging, with applications e.g. in biological research to study biological processes occurring in cell membrane. 2017 Optical Society of America.
Number of references:54
Main heading:Graphene
Controlled terms:Cytology - Optical resolving power - Plasmonics - Precious metals - Surface plasmons
Uncontrolled terms:Biological research - Imaging resolutions - Incident wavelength - Interference patterns - Localized surface plasmon - Structured illumination method - Super resolution imaging - Wide field of view
Classification code:461.2 Biological Materials and Tissue Engineering - 547.1 Precious Metals - 741.1 Light/Optics - 761 Nanotechnology - 804 Chemical Products Generally
Numerical data indexing:Size 1.10e-08m, Size 9.80e-07m
DOI:10.1364/OE.25.014494
Funding details: Number: 61475156, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61361166004, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC) (61361166004, 61475156)
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<146>
Accession number:20173404075756
Title:Denoising algorithm of pulsar signal based on EMD with kurtosis test window
Authors:Wang, Lu (1); Li, Jianxun (1, 2); He, Tingting (1)
Author affiliation:(1) School of Automation and Information Engineering, Xi'an University of Technology, Xi'an; 710048, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics
Abbreviated source title:Xi Tong Cheng Yu Dian Zi Ji Shu/Syst Eng Electron
Volume:39
Issue:6
Issue date:June 1, 2017
Publication year:2017
Pages:1208-1214
Language:Chinese
ISSN:1001506X
CODEN:XGYDEM
Document type:Journal article (JA)
Publisher:Chinese Institute of Electronics
Abstract:For the problem that pulsar signal and noise are aliasing on the intrinsic mode functions (IMF) during the empirical mode decomposition (EMD), a denoising method based on EMD with kurtosis test window is proposed. Firstly, the starting point for IMF refactoring is calculated by auto-correlation and cross-correlation. On that basis, the left and the right endpoints of the pulse part of signal from the former two IMFs of the starting point for refactoring are acquired by the local kurtosis test. Finally, the adaptive threshold method is used to remove noise and improve signal quality. The experimental results show that, compared with the other five methods, the proposed method has higher denoising performance, which can effectively eliminate the noises and retain the details in pulsar signal. 2017, Editorial Office of Systems Engineering and Electronics. All right reserved.
Number of references:16
Main heading:Time domain analysis
Controlled terms:Higher order statistics - Pulsars - Signal denoising
Uncontrolled terms:Adaptive threshold method - Adaptive thresholds - Cross correlations - De-noising algorithm - Denoising methods - Empirical Mode Decomposition - Intrinsic Mode functions - Time domain windowing
Classification code:657.2 Extraterrestrial Physics and Stellar Phenomena - 716.1 Information Theory and Signal Processing - 921 Mathematics - 922.2 Mathematical Statistics
DOI:10.3969/j.issn.1001-506X.2017.06.04
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<147>
Accession number:20172003675753
Title:Numerical investigation of a microfiberplane-grating composite optical waveguide for gas refractive index sensing
Authors:Ma, Chengju (1); Ren, Liyong (2); Guo, Wenge (1); Fu, Haiwei (1); Xu, Yiping (3); Liu, Yinggang (1); Wen, Jin (1)
Author affiliation:(1) School of Science, Xi'an Shiyou University, Xi'an; 710065, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) School of Physics and Optoelectronic Engineering, Yangtze University, Jingzhou; 434023, China
Corresponding author:Ma, Chengju(chengjuma@xsyu.edu.cn)
Source title:Applied Optics
Abbreviated source title:Appl. Opt.
Volume:56
Issue:14
Issue date:May 10, 2017
Publication year:2017
Pages:3984-3988
Language:English
ISSN:1559128X
E-ISSN:21553165
CODEN:APOPAI
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:In this paper, we propose a microfiber-plane-grating composite optical waveguide (MPGCOW), which is formed by immobilizing a tapered microfiber on the surface of a plane grating with one defect, for gas refractive index (RI) sensing. Its optical properties and gas RI sensing properties are investigated by the finite difference time domain method. Results show that the MPGCOW has a photonic stop band and is very sensitive to the ambient gas RI variation. The largest gas RI sensing sensitivity of 486.67 nm/RIU and detection limit of 2 × 10-6are obtained by immersing the structure in the mixture gas of N
Number of references:19
Main heading:Refractive index
Controlled terms:Finite difference time domain method - Gases - Mixtures - Optical waveguides - Surface defects - Time domain analysis
Uncontrolled terms:Composite optical waveguides - Detection limits - Gas refractive index - Mixture ratio - Numerical investigations - Photonic stop band - Plane grating - Sensing property
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 921 Mathematics - 951 Materials Science
DOI:10.1364/AO.56.003984
Funding details: Number: SKLST201612, Acronym: -, Sponsor: -;Number: 2016JQ6051, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 2015BS01, Acronym: -, Sponsor: Doctoral Scientific Research Start-up Foundation from Henan University of Technology;Number: 61275149, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61505160, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61605018, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 15JK1578, Acronym: -, Sponsor: Education Department of Shaanxi Province;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC) (61275149, 61505160, 61605018); Scientific Research Program Funded by Shaanxi Provincial Education Department (15JK1578); Natural Science Foundation of Shaanxi Province (2016JQ6051); Doctoral Scientific Research Startup Foundation of Xi'an Shiyou University (2015BS01); Open Research Fund of State Key Laboratory of Transient Optics and Photonics (SKLST201612); Students Research Training Program of Xi'an Shiyou University.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<148>
Accession number:20172403756324
Title:Chiral long-period gratings: Fabrication, highly sensitive torsion sensing, and tunable single-band filtering
Authors:Kong, Xudong (1, 2); Ren, Kaili (1, 2); Ren, Liyong (1); Liang, Jian (1, 2); Ju, Haijuan (1, 2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Ren, Liyong(renliy@opt.ac.cn)
Source title:Applied Optics
Abbreviated source title:Appl. Opt.
Volume:56
Issue:16
Issue date:June 1, 2017
Publication year:2017
Pages:4702-4707
Language:English
ISSN:1559128X
E-ISSN:21553165
CODEN:APOPAI
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:A promising technology for fabricating chiral long-period gratings (CLPGs) is demonstrated using a commercial fusion splicer. The key aspect of this technology is the incorporation of a fully automatic program we designed for the fusion splicer. High-quality CLPGs are successfully fabricated from single-mode fibers, which have very flat surfaces and low insertion loss. We also investigate the tuning characteristics of the transmission spectrum with the mechanical twist rate in CLPGs for torsion sensing application. The torsion sensitivity is improved and the shift in resonance wavelength versus the mechanical twist rate shows an almost perfect linear relationship. In addition, by choosing appropriate fabrication parameters, the fabricated CLPGs can be used as tunable single-band-rejection filters in a broad wavelength range. 2017 Optical Society of America.
Number of references:25
Main heading:Fabrication
Controlled terms:Fiber optic sensors - Notch filters - Single mode fibers - Torsional stress
Uncontrolled terms:Automatic programs - Fabrication parameters - Linear relationships - Long Period Gratings - Low insertion loss - Resonance wavelengths - Sensing applications - Transmission spectrums
Classification code:703.2 Electric Filters - 741.1.2 Fiber Optics
DOI:10.1364/AO.56.004702
Funding details: Number: 61535015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61505246, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275149, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC) (61275149, 61505246, 61535015).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<149>
Accession number:20173104014252
Title:Optimization Design and Test for the Front Frame of a Large Off-axis TMA Space Camera
Authors:Wei, Lei (1, 2); Zhang, Lei (1, 3); Xie, Peng (1); Chen, Su (4)
Author affiliation:(1) Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun; 130033, China; (2) University of Chinese Academy of Sciences, Beijing; 100039, China; (3) Chang Guang Satellite Technology LTD. Co, Changchun; 130000, China; (4) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:5
Issue date:May 1, 2017
Publication year:2017
Article number:0522001
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:To guarantee the high stability and high precision of an off-axis thee-mirror optical system space camera, a integration front frame structure was designed to support the second mirror and folded mirror according to the characteristics of the same height of second mirror and folded mirror in optical axis direction, and a topology optimization method based on constraint mode and free mode was proposed to optimize the front frame structure. Then, the integrated structure was assembled into the entire camera after optimization, and the finite element analysis of static was carried out. The results show that the camera maintains excellent static performance with the optical tilt between the primary mirror and secondary mirror being less than 9″ and the optical tilt between the primary mirror and fold mirror being less than 22.4″, the optical eccentricity between the primary mirror and secondary mirror being less than 0.021 mm, meeting the tolerance requirement of system. By free modal analysis and test to the integrated front frame structure, the results verify the correctness of the design method. The proposed topology optimization method can efficient avoid the defect of topology optimization based on constraint modal frequency that there is no relationship between the constraint points. It can provide reference for design the space camera with high-resolution and wide field. 2017, Science Press. All right reserved.
Number of references:14
Main heading:Optical testing
Controlled terms:Cameras - Design - Finite element method - Mirrors - Modal analysis - Optical systems - Shape optimization - Structural frames - Topology
Uncontrolled terms:Front frame - Integrated structure - Modal test - Optimization design - Space cameras - Static performance - Tolerance requirement - Topology Optimization Method
Classification code:408.2 Structural Members and Shapes - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 921 Mathematics
Numerical data indexing:Size 2.10e-05m
DOI:10.3788/gzxb20174605.0522001
Funding details: Number: 2016YFB0500904, Acronym: -, Sponsor: -;Number: 41501383, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The National Natural Science Foundation of China (No.41501383) and National Key Research and Development Plan of Ministry of Science and Technology(No.2016YFB0500904).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<150>
Accession number:20171203489550
Title:Several nanosecond Nd:YVO
Authors:Liu, Huan (1, 2); Sun, Zhe (1); Wang, Xi (1, 2); Wang, Yonggang (3); Cheng, Guanghua (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 10049, China; (3) Shaanxi Normal University, Xi'an; 710119, China
Corresponding author:Cheng, Guanghua(gcheng@opt.ac.cn)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:6
Issue date:March 20, 2017
Publication year:2017
Pages:6244-6252
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:Graphene-like two-dimensional (2D) materials have shown remarkable broadband saturable absorption properties. These materials were successfully applied into mode locked lasers to generate laser pulses with the pulse duration from picosecond to femtosecond. However, these novel materials have not shown good performance as far in another important aspect: Q-switched lasers. Solid-state or fiber lasers Q-switched with broadband absorbers usually generated pulses of one hundred nanosecond to several microsecond, which show weak competitiveness compared to traditional absorbers such as Cr: YAG and semiconductor saturable absorption mirror (SESAM). In this paper we utilized BP, WS
Number of references:48
Main heading:Semiconductor saturable absorber mirrors
Controlled terms:Fiber lasers - Laser mirrors - Layered semiconductors - Liquid lasers - Molybdenum compounds - Neodymium compounds - Phosphorus - Q switched lasers - Q switching - Semiconductor lasers - Semiconductor quantum wells - Solid state lasers - Sulfur compounds - Tungsten compounds - Yttrium aluminum garnet
Uncontrolled terms:Broadband absorbers - Molybdenum disulfide - Passively Q-switched - Saturable absorption - Semiconductor saturable absorption mirror - Tungsten disulfide - Two Dimensional (2 D) - Two-dimensional materials
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 744 Lasers - 804 Chemical Products Generally
Numerical data indexing:Time 2.86e-09s
DOI:10.1364/OE.25.006244
Funding details: Number: XAB2015B27, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61378019, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61378024, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:West Young Scholar Foundation of the Chinese Academy of Sciences, (Grant No: XAB2015B27) and the National Natural Science Foundation of China, (Grant No: 61378024, 61378019).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<151>
Accession number:20172703889327
Title:Decoding techniques of single-ring absolute photoelectric shaft encoder
Authors:Su, Xiaogang (1, 2); Hu, Xiaodong (1); Xiao, Maosen (1); Zhang, Xiaodong (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Abbreviated source title:Hongwai yu Jiguang Gongcheng Infrared Laser Eng.
Volume:46
Issue:4
Issue date:April 25, 2017
Publication year:2017
Article number:0411007
Language:Chinese
ISSN:10072276
Document type:Journal article (JA)
Publisher:Chinese Society of Astronautics
Abstract:In comparison with incremental and traditional absolute encoder, the single-ring absolute encoder processes more advantage. And the research of decoding system and algorithm are essential to the single-ring absolute encoder. In order to improve single-ring absolute photoelectric encoder's circuit integration, response speed and accuracy, a decoding system was designed in this paper. Linear CCD was used in this system as the disc image receiving and photoelectric conversion device which also provided the basement of subdivision algorithm. And FPGA was used to achieve circuit control and decoding algorithm. A new decoding algorithm was also proposed in this paper. On the one hand, the coding information was achieved by counting high electrical level of the binaryzation signal of CCD's output. Coding information was obtained by recognition of the disc image and combination of 12-bits coding number. On the other hand, precise value was obtained by calculating the shifting between the centroid of image and virtual center. The centroid of stripe was calculated based on CCD centroid location algorithm. Finally, the value of angle was precisely received from combination of these two values. A prototype of theodolite was developed based on this single-ring absolute encoder decoding system and can reach the accuracy of 2". 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
Number of references:12
Main heading:Signal encoding
Controlled terms:Decoding - Image coding - Photoelectricity
Uncontrolled terms:Centroid algorithm - Circuit integration - Decoding techniques - Linear CCD - Location algorithms - Photoelectric conversion - Photoelectric encoders - Subdivision algorithms
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing
DOI:10.3788/IRLA201746.0411007
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<152>
Accession number:20172803922836
Title:Research on position error of sparse optical system
Authors:Wang, Chenchen (1, 2); Shen, Yang (1, 2); Zou, Gangyi (1, 2); Li, Ruichang (1, 2); Fan, Xuewu (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Wang, Chenchen(wangchenchen@opt.ac.cn)
Source title:Optik
Abbreviated source title:Optik
Volume:144
Issue date:September 2017
Publication year:2017
Pages:191-198
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Elsevier GmbH
Abstract:The main method to improve the resolution of optical system is to increase the aperture of the optical system, and it is a common method to use the sparse-aperture mirrors to obtain a large aperture primary mirror. The primary mirror of optical system is deployed when it is launched into the orbit, and the deviation between deployed position and design position determines the quality of the optical system. So it is necessary to analyze the position accuracy of segmented mirrors. Sparse-aperture optical system is modeled by optical software Zemax, and by adjusting six degrees of freedom of segmented mirrors can get curves between position error and image quality. The results show that different positions of segmented mirrors can produce different wave-front when they have same position error. Moving along the Z axis, the inner mirrors influence most while the outer ones influence smallest; tilt along the X axis, middle ones have maximum wave-front aberration while the outer ones produce minimum wave-front aberration. When tilt along Y axis, middle segmented mirrors have the smallest wave-front aberration and outer ones have maximum. Two methods are used to distribute the wave-front aberration onto each segmented mirror. One is that according to the relationship curves, distribute the position error to each segmented mirror alone. Another is that each one has same position errors. The final result shows that the former method has a more relax position error when generates the same wave-front aberration. 2017 Elsevier GmbH
Number of references:14
Main heading:Optical systems
Controlled terms:Aberrations - Degrees of freedom (mechanics) - Errors - Image analysis - Mirrors - Modulation - Optical design - Wavefronts
Uncontrolled terms:Geometric optical designs - Optical software - Position accuracy - Primary mirrors - Segmented mirror - Six degrees of freedom - Sparse aperture - Wavefront aberrations
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 931.1 Mechanics
DOI:10.1016/j.ijleo.2017.06.082
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<153>
Accession number:20172803941563
Title:Effects of doping B
Authors:He, Quanlong (1, 2); Wang, Pengfei (1); Sun, Mengya (1, 2); Lu, Min (1); Peng, And Bo (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi'an; 710119, China; (2) University of Chinese Academy of Sciences (UCAS), Beijing; 100049, China
Source title:Optical Materials Express
Abbreviated source title:Opt. Mater. Express
Volume:7
Issue:8
Issue date:2017
Publication year:2017
Pages:2697-2705
Language:English
E-ISSN:21593930
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:The effects of doping B
Number of references:21
Main heading:Glass
Controlled terms:Chains - Defects - Radiation effects - Silica
Uncontrolled terms:Anti radiations - High energy regions - Multicomponents - Oxidizability - Phosphate based glass - Phosphate chain - Phosphate glass - Radiation resistance
Classification code:602.1 Mechanical Drives - 812.3 Glass - 951 Materials Science
DOI:10.1364/OME.7.002697
Funding details: Number: 2017446, Acronym: -, Sponsor: Youth Innovation Promotion Association of the Chinese Academy of Sciences;Number: 2015JM6315, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: XAB2016A08, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61307046, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC No.61307046); Natural Science Basic Research Project in Shaanxi Province (2015JM6315); West Young Scholars Program of the Chinese Academy of Sciences (XAB2016A08); and Youth Innovation Promotion Association CAS (2017446), China.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<154>
Accession number:20171703607535
Title:Automatic seamless image mosaic method based on SIFT features
Authors:Liu, Meiying (1, 2); Wen, Desheng (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, No. 17 Xinxi Road, Xi'an; 710119, China; (2) University of Chinese, Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing; 100049, China
Corresponding author:Liu, Meiying(liumeiying@opt.ac.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:1025636
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:An automatic seamless image mosaic method based on SIFT features is proposed. First a scale-invariant feature extracting algorithm SIFT is used for feature extraction and matching, which gains sub-pixel precision for features extraction. Then, the transforming matrix H is computed with improved PROSAC algorithm, compared with RANSAC algorithm,the calculate efficiency is advanced, and the number of the inliers are more. Then the transforming matrix H is purify with LM algorithm. And finally image mosaic is completed with smoothing algorithm. The method implements automatically and avoids the disadvantages of traditional image mosaic method under different scale and illumination conditions. Experimental results show the image mosaic effect is wonderful and the algorithm is stable very much. It is high valuable in practice. 2017 SPIE.
Number of references:10
Main heading:Photonics
Controlled terms:Extraction
Uncontrolled terms:Feature extraction and matching - Features extraction - Illumination conditions - Image mosaic - Scale invariant features - Seamless image mosaic - SIFT Feature - Smoothing algorithms
Classification code:741.1 Light/Optics - 802.3 Chemical Operations
DOI:10.1117/12.2257792
Funding details: Number: 61107008, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61105017, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work has been supported by: (1) National Natural Science Foundation of China under the contract No.61107008 and No.61105017.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<155>
Accession number:20180404670972
Title:A star image registration algorithm based on joint feature matching
Authors:Li, Zhao (1, 2); Wen, Yan (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 10049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:1046212
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:With the amount of space debris increasing accordingly with human activities in near space, the threat of space debris to space missions raises the concern of surveillance of these malicious targets. Space target detection based on optical image is a feasible and effective solution for monitoring these malicious targets. However, as the observation platform is nonestationary, image obtained from the telescope need registration for further operation. In this paper, a star image registration algorithm based on joint feature matching is proposed. The star images are firstly denoised by filtering system. Then reference stars are preselected and their features are constructed. By matching the extracted features, a pool of star pairs is established. Transform parameters are derived from the locations of these matched pairs. Experimental results have validated the capability of our algorithm in pixel accurate star image registration. 2017 SPIE.
Number of references:10
Main heading:Stars
Controlled terms:Geometrical optics - Image registration - Space debris
Uncontrolled terms:Effective solution - Feature construction - Feature matching - Filtering systems - Human activities - Reference Star - Registration - Star images
Classification code:656.1 Space Flight - 657.2 Extraterrestrial Physics and Stellar Phenomena - 723.2 Data Processing and Image Processing - 741.1 Light/Optics
DOI:10.1117/12.2283215
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<156>
Accession number:20175104560054
Title:Removal functions of different polishing heads worked in planet motion model
Authors:Yao, Yong-Sheng (1); Ma, Zhen (1); Xu, Liang (1); Ding, Jiao-Teng (1); Wang, Yong-Jie (1); Shen, Le (1); Jiang, Bo (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Yao, Yong-Sheng(ganglangyao@126.com)
Source title:Guangxue Jingmi Gongcheng/Optics and Precision Engineering
Abbreviated source title:Guangxue Jingmi Gongcheng
Volume:25
Issue:10
Issue date:October 1, 2017
Publication year:2017
Pages:2706-2713
Language:Chinese
ISSN:1004924X
CODEN:GJGOF4
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences
Abstract:To obtain Gaussian-like removal function in optical manufacturing process, a convenient method to derive the removal functions of various complicated polishing heads by integrating the rotation removal function along the revolution trajectory was proposed based on the traditional planet polising theory. When the speed ratio was greater than 10,the removal function curve of a solid disk by the proposed method was very close to the result by the traditional method, which verifies the correctness of the proposed method. The proposed method was used to derive polishing removal functions of different polishing heads. By computer simulation, it shows that type II petal polishing head gets a better removal function curve when the eccentricity ratio is 0.4.Finally, the type II petal polishing head was polished, and the results indicate that when the eccentricity ratio was 0.4 and the speed ratio is 10,the test and simulation results are consistent with each other and they are all close to the Gaussian curve. These test result verifies the correctness of the proposed method again. 2017, Science Press. All right reserved.
Number of references:19
Main heading:Polishing
Controlled terms:Gaussian distribution
Uncontrolled terms:Eccentricity ratios - Gaussian curves - Motion modeling - Optical manufacturing - Polishing head - Removal function - Solid disks - Speed ratio
Classification code:604.2 Machining Operations - 922.1 Probability Theory
DOI:10.3788/OPE.20172510.2706
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<157>
Accession number:20180404671166
Title:A self-Adaptive remote sensing image enhancement method based on gradient and intensity histogram
Authors:Lu, Zhuanli (1, 2); Liu, Jiahang (1); Chen, Tieqiao (1, 2); Kang, Chaomeng (1, 2); Yu, Kai (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104623I
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:It is crucial to enhance the lower contrast Remote remote sensing images to obtain more details information for further remote sensing image processing and application. In this letter here, a self-Adaptive remote sensing image contrast enhancement method has been proposed. The method is an improvement, based on gradient and intensity histogram equalization (GIHE) by using the advantage of histogram compaction transform (HCT). Firstly, we obtained two enhanced images by GIHE and HCT, respectively. Then furthermore, the two enhaceed images were normalized with a self-Adaptive paremeter, which based on standard deviation and mean of the gradient. Finally and then, we modified the normalized image by dual-gamma function for preserving the local details. It's evidenced that the proposed method have more richer details and better subjective visual quality, comparedwith the other methods. The experimental results depicted in terms of PSNR, MAE and Q. Comparing with the other methods, the proposed method had richer details and better subjective visual quality. 2017 SPIE.
Number of references:10
Main heading:Image enhancement
Controlled terms:Adaptive optics - Compaction - Equalizers - Graphic methods - Optical data processing - Remote sensing
Uncontrolled terms:Contrast Enhancement - Dual-gamma modification - Histogram compaction transform (HCT) - Intensity histograms - Remote sensing images
Classification code:713.5 Electronic Circuits Other Than Amplifiers, Oscillators, Modulators, Limiters, Discriminators or Mixers - 723.2 Data Processing and Image Processing - 741.1 Light/Optics
DOI:10.1117/12.2285168
Funding details:
Funding text:This work was supported in part by the National Key Research and Development Program through Grant
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<158>
Accession number:20173904210171
Title:Multifeature anisotropic orthogonal Gaussian process for automatic age estimation
Authors:Li, Zhifeng (1); Gong, Dihong (2); Zhu, Kai (3); Tao, Dacheng (4, 5); Li, Xuelong (6)
Author affiliation:(1) Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; (2) Guangdong Provincial Key Laboratory of Computer Vision and Virtual Reality Technology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; (3) Department of Information Engineering, Chinese University of Hong Kong, Hong Kong; (4) UBTECH Sydney Artificial Intelligence Centre, J12, 6 Cleveland St, Darlington; NSW; 2008, Australia; (5) School of Information Technologies, Faculty of Engineering and Information Technologies, University of Sydney, J12, 6 Cleveland St, Darlington; NSW; 2008, Australia; (6) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Source title:ACM Transactions on Intelligent Systems and Technology
Abbreviated source title:ACM Trans. Intell. Syst. Technolog.
Volume:9
Issue:1
Issue date:August 2017
Publication year:2017
Article number:2
Language:English
ISSN:21576904
E-ISSN:21576912
Document type:Journal article (JA)
Publisher:Association for Computing Machinery
Abstract:Automatic age estimation is an important yet challenging problem. It has many promising applications in social media. Of the existing age estimation algorithms, the personalized approaches are among the most popular ones. However, most person-specific approaches rely heavily on the availability of training images across different ages for a single subject, which is usually difficult to satisfy in practical application of age estimation. To address this limitation,we first propose a new model called Orthogonal Gaussian Process (OGP), which is not restricted by the number of training samples per person. In addition, without sacrifice of discriminative power, OGP is much more computationally efficient than the standard Gaussian Process. Based on OGP, we then develop an effective age estimation approach, namely anisotropic OGP (A-OGP), to further reduce the estimation error. A-OGP is based on an anisotropic noise level learning scheme that contributes to better age estimation performance. To finally optimize the performance of age estimation, we propose a multifeature A-OGP fusion framework that uses multiple features combined with a random sampling method in the feature space. Extensive experiments on several public domain face aging datasets (FG-NET, MORPH Album1, and MORPH Album 2) are conducted to demonstrate the state-of-the-art estimation accuracy of our new algorithms. 2017 ACM.
Number of references:49
Main heading:Gaussian distribution
Controlled terms:Anisotropy - Gaussian noise (electronic) - Human computer interaction
Uncontrolled terms:Age estimation - Anisotropic noise - Computationally efficient - Discriminative power - Face images - Gaussian Processes - Multiple features - Random sampling method
Classification code:922.1 Probability Theory - 931.2 Physical Properties of Gases, Liquids and Solids
DOI:10.1145/3090311
Funding details: Number: -, Acronym: -, Sponsor: University of Sydney;Number: 2014A030313688, Acronym: -, Sponsor: Natural Science Foundation of Guangdong Province;Number: -, Acronym: CUHK, Sponsor: Chinese University of Hong Kong;Number: FT-130101457, Acronym: ARC, Sponsor: Australian Research Council;Number: LP-150100671, Acronym: ARC, Sponsor: Australian Research Council;Number: DP-140102164, Acronym: ARC, Sponsor: Australian Research Council;Number: 172644KYSB20160033, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: ACM, Sponsor: Anacostia Community Museum;
Funding text:This work was funded by the External Cooperation Program of BIC, the Chinese Academy of Sciences (172644KYSB20160033), Australian Research Council Projects (FT-130101457, DP-140102164, and LP-150100671), and Natural Science Foundation of Guangdong Province (2014A030313688). Authors’ addresses: Z. Li, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; email: zhifeng.li@siat.ac.cn; D. Gong, Guangdong Provincial Key Laboratory of Computer Vision and Virtual Reality Technology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; email: gongd@ufl.edu; K. Zhu, Department of Information Engineering, Chinese University of Hong Kong, Hong Kong; email: zk013@ie.cuhk.edu.hk; D. Tao, UBTECH Sydney Artificial Intelligence Centre and the School of Information Technologies in the Faculty of Engineering and Information Technologies at The University of Sydney, J12, 6 Cleveland St, Darlington, NSW 2008, Australia; email: dacheng.tao@sydney.edu.au; X. Li, Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, Shaanxi, P. R. China; email: xuelong_li@opt.ac.cn. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies show this notice on the first page or initial screen of a display along with the full citation. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers, to redistribute to lists, or to use any component of this work in other works requires prior specific permission and/or a fee. Permissions may be requested from Publications Dept., ACM, Inc., 2 Penn Plaza, Suite 701, New York, NY 10121-0701 USA, fax + 1 (212) 869-0481, or permissions@acm.org. ? 2017 ACM 2157-6904/2017/09-ART2 $15.00 https://doi.org/10.1145/3090311
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<159>
Accession number:20174504368492
Title:Characteristis research of diffuser panel in near backscatter measurement system
Authors:Han, Yang (1, 2); He, Junhua (1); Yan, Yadong (1); Wu, Bingjing (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Abbreviated source title:Hongwai yu Jiguang Gongcheng Infrared Laser Eng.
Volume:46
Issue:9
Issue date:September 25, 2017
Publication year:2017
Article number:0917002
Language:Chinese
ISSN:10072276
Document type:Journal article (JA)
Publisher:Chinese Society of Astronautics
Abstract:Based on the analysis of near back scattered light in laser fusion, a method was proposed to collect near back scattered light by using diffuser panel. Based on the analysis of the application scenarios of the diffuser panel, the characteristic of the diffuser panel was presented. A device for measuring the characteristics of diffuser panel was set up. The directional hemispherical reflectance (DHR), bidirectional reflectance distribution function, surface uniformity, vacuum and UV properties were measured and analyzed. The analysis results show that the F
Number of references:12
Main heading:Distribution functions
Controlled terms:Backscattering - Inertial confinement fusion - Light scattering - Reflection
Uncontrolled terms:Application scenario - Backscattered light - Bidirectional reflectance distribution functions - Cosine distributions - Directional hemispherical reflectances - High reflectivity - Measurement system - Surface uniformity
Classification code:741.1 Light/Optics - 922.1 Probability Theory - 932.2.1 Fission and Fusion Reactions
DOI:10.3788/IRLA201746.0917002
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<160>
Accession number:20173504083070
Title:Integrated kerr comb-based reconfigurable transversal differentiator for microwave photonic signal processing
Authors:Xu, Xingyuan (1); Wu, Jiayang (1); Shoeiby, Mehrdad (2); Nguyen, Thach G. (2); Chu, Sai T. (3); Little, Brent E. (4); Morandotti, Roberto (5, 6, 7); Mitchell, Arnan (2); Moss, David J. (1)
Author affiliation:(1) Centre for Micro-Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (2) School of Engineering, RMIT University, Melbourne; VIC; 3000, Australia; (3) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong; (4) Xi'an Institute of Optics and Precision Mechanics Precision Mechanics of CAS, Xi'an, China; (5) INSR-énergie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (6) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (7) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Corresponding author:Moss, David J.(dmoss@swin.edu.au)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F52-IPRSN 2017
Part number:1 of 1
Issue title:Advanced Photonics, IPRSN 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:Advanced Photonics, IPRSN 2017
Conference date:July 24, 2017 - July 27, 2017
Conference location:New Orleans, LA, United states
Conference code:136878
Publisher:OSA - The Optical Society
Abstract:An integrated reconfigurable transversal differentiator is achieved based on an integrated nonlinear micro-ring resonator. The RF responses of different orders of differentiation are experimentally characterized. Systems demonstrations for Gaussian input signals are also performed. OSA 2017.
Number of references:8
Page count:3
Main heading:Signal processing
Controlled terms:Optical resonators
Uncontrolled terms:Differentiators - Gaussian inputs - Microring resonator - Microwave Photonics - Reconfigurable
Classification code:716.1 Information Theory and Signal Processing - 741.3 Optical Devices and Systems
DOI:10.1364/IPRSN.2017.IW1A.6
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<161>
Accession number:20180304654848
Title:Rearranging the lenslet array of the compact passive interference imaging system with high resolution
Authors:Liu, Gang (1, 2); Wen, Desheng (1); Song, Zongxi (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi Province; 710119, China; (2) University of Chinese, Academy of Sciences, Beijing; 100039, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10463
Part number:1 of 1
Issue title:AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Issue date:2017
Publication year:2017
Article number:1046310
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614079
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133232
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:With the development of aeronautics and astronautics, higher resolution requirement of the telescope was necessary. However, the increase in resolution of conventional telescope required larger apertures, whose size, weight and power consumption could be prohibitively expensive. This limited the further development of the telescope. This paper introduced a new imaging technology using interference-Compact Passive Interference Imaging Technology with High Resolution, and proposed a rearranging method for the arrangement of the lenslet array to obtain continuously object spatial frequency. 2017 SPIE.
Number of references:8
Main heading:Image resolution
Controlled terms:Earth (planet) - Telescopes
Uncontrolled terms:High resolution - Higher resolution - Imaging technology - Lenslet array - Optical interferometry - Passive interference - Rearranging - Spatial frequency
Classification code:746 Imaging Techniques
DOI:10.1117/12.2283216
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<162>
Accession number:20172003680377
Title:Hardware in-loop system for X-ray pulsar-based navigation and experiments
Authors:Zhang, Dapeng (1); Zheng, Wei (1); Sheng, Lizhi (2); Wang, Yidi (1); Xu, Neng (2)
Author affiliation:(1) College of Aerospace Science and Engineering, National University of Defense Technology, Changsha; 410073, China; (2) Xi’an Institute of Optics and Precision Mechanics of CAS, Xi’an; 710119, China
Corresponding author:Zheng, Wei(zhengwei@nudt.edu.cn)
Source title:Lecture Notes in Electrical Engineering
Abbreviated source title:Lect. Notes Electr. Eng.
Volume:438
Part number:2 of 3
Issue title:China Satellite Navigation Conference, CSNC 2017 Proceedings
Issue date:2017
Publication year:2017
Pages:553-563
Language:English
ISSN:18761100
E-ISSN:18761119
ISBN-13:9789811045905
Document type:Conference article (CA)
Conference name:8th China Satellite Navigation Conference, CSNC 2017
Conference date:May 23, 2017 - May 25, 2017
Conference location:Shanghai, China
Conference code:191589
Publisher:Springer Verlag
Abstract:X-ray pulsar-based navigation uses natural objects, the neutron star, in space as the navigation signal source. The advantages of the method are navigation information is complete, and the reliability and autonomy are high. It is a research hot spot at present both at home and abroad. As a result of the X-ray signal from the pulsars is very weak, it cannot penetrate the thickset atmosphere. In order to validate the pulsar navigation algorithms closer to the real conditions on ground, the special Hardware in-Loop System should be used to do the experiments. This paper adopted the system “Tianshu-II” which is developed by National University of Defense Technology and Xi’an Institute of Optics and Precision Mechanics research institute. A series of X-ray pulsar-based navigation experiments are carried out. Experimental results show that the algorithms are reliable. They are verified to be effective in the hardware-in-the-loop simulation. Springer Nature Singapore Pte Ltd. 2017.
Number of references:10
Main heading:X rays
Controlled terms:Electromagnetic wave emission - Experiments - Hardware - Navigation - Pulsars - Satellite navigation aids - Traction (friction)
Uncontrolled terms:Defense technologies - Hardware in loop - Navigation in formation - Navigation signals - Precision mechanics - Pulsar navigations - Research institutes - X-ray pulsars
Classification code:605 Small Tools and Hardware - 655.2 Satellites - 657.2 Extraterrestrial Physics and Stellar Phenomena - 711 Electromagnetic Waves - 901.3 Engineering Research - 931.1 Mechanics - 932.1 High Energy Physics
DOI:10.1007/978-981-10-4591-2_45
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<163>
Accession number:20172403771228
Title:Four-wave mixing photon pair generation statistics for a nonlinear microcavity with chaotic and pulsed excitation
Authors:Roztocki, Piotr (1); Kues, Michael (1, 2); Reimer, Christian (1); Little, Brent E. (3); Chu, Sai T. (4); Moss, David J. (1, 5); Morandotti, Roberto (1, 6, 7)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, China; (4) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong; (5) Center for Microphotonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (6) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (7) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Corresponding author:Kues, Michael(michael.kues@emt.inrs.ca)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F42-CLEO_QELS 2017
Part number:1 of 1
Issue title:CLEO: QELS_Fundamental Science, CLEO_QELS 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:CLEO: QELS_Fundamental Science, CLEO_QELS 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:135898
Publisher:OSA - The Optical Society
Abstract:We characterize four-wave mixing photon pair generation statistics in the chaotic pulsed regime associated with a self-locked nonlinear microcavity excitation scheme, and contrast these statistics against a pulsed actively mode-locked excitation. OSA 2017.
Number of references:4
Page count:2
Main heading:Four wave mixing
Controlled terms:Locks (fasteners) - Microcavities - Photons
Uncontrolled terms:Excitation schemes - Mode-locked - Photon pair generations - Pulsed excitation
Classification code:714 Electronic Components and Tubes - 931.3 Atomic and Molecular Physics
DOI:10.1364/CLEO_QELS.2017.FTu4D.3
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<164>
Accession number:20173404078690
Title:Type II micro-comb based on a filter-driven four wave mixing laser
Authors:Bao, Hualong (1); Cooper, Andrew (1); Chu, Sai T. (2); Moss, Dave J. (3); Morandotti, Roberto (4); Little, Brent E. (5); Peccianti, Marco (1); Pasquazi, Alessia (1)
Author affiliation:(1) Emergent Photonics (Epic) Lab, Dept. of Physics and Astronomy, University of Sussex, BN1 9QH, United Kingdom; (2) City University of Hong Kong, Tat Chee Avenue, Hong Kong; (3) Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (4) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (5) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China
Corresponding author:Bao, Hualong(H.Bao@sussex.ac.uk)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F52-IPRSN 2017
Part number:1 of 1
Issue title:Advanced Photonics, IPRSN 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:Advanced Photonics, IPRSN 2017
Conference date:July 24, 2017 - July 27, 2017
Conference location:New Orleans, LA, United states
Conference code:136878
Publisher:OSA - The Optical Society
Abstract:We numerically and experimentally demonstrate the generation of Type II micro-combs in a Filter-Driven four wave mixing laser, showing that the generated Type II micro-combs are fully coherent. OSA 2017.
Number of references:6
Page count:3
Main heading:Four wave mixing
Controlled terms:Bandpass filters - Comb filters
Uncontrolled terms:Type II
Classification code:703.2 Electric Filters
DOI:10.1364/IPRSN.2017.IM4A.4
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<165>
Accession number:20172803900091
Title:Dimensionality reduction method based on a tensor model
Authors:Yan, Ronghua (1, 2); Peng, Jinye (1, 3); Ma, Dongmei (4); Wen, Desheng (2)
Author affiliation:(1) Northwestern Polytechnical University, School of Electronics and Information, Xian, China; (2) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian, China; (3) Northwest University, School of Information and Technology, Xian, China; (4) Xian Janssen Pharmaceutical Ltd, Xian, China
Corresponding author:Yan, Ronghua(yanronghua@opt.ac.cn)
Source title:Journal of Applied Remote Sensing
Abbreviated source title:J. Appl. Remote Sens.
Volume:11
Issue:2
Issue date:April 1, 2017
Publication year:2017
Article number:025011
Language:English
E-ISSN:19313195
CODEN:JARSC4
Document type:Journal article (JA)
Publisher:SPIE
Abstract:Dimensionality reduction is a preprocessing step for hyperspectral image (HSI) classification. Principal component analysis reduces the spectral dimension and does not utilize the spatial information of an HSI. Both spatial and spectral information are used when an HSI is modeled as a tensor, that is, the noise in the spatial dimension is decreased and the dimension in a spectral dimension is reduced simultaneously. However, this model does not consider factors affecting the spectral signatures of ground objects. This means that further improving classification is very difficult. The authors propose that the spectral signatures of ground objects are the composite result of multiple factors, such as illumination, mixture, atmospheric scattering and radiation, and so on. In addition, these factors are very difficult to distinguish. Therefore, these factors are synthesized as within-class factors. Within-class factors, class factors, and pixels are selected to model a third-order tensor. Experimental results indicate that the classification accuracy of the new method is higher than that of the previous methods. 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).
Number of references:19
Main heading:Tensors
Controlled terms:Hyperspectral imaging - Image processing - Principal component analysis - Spectroscopy
Uncontrolled terms:Atmospheric scattering - Classification accuracy - Dimensionality reduction - Dimensionality reduction method - Pre-processing step - Spatial informations - Spectral dimensions - Spectral information
Classification code:921.1 Algebra - 922.2 Mathematical Statistics
DOI:10.1117/1.JRS.11.025011
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<166>
Accession number:20180704784160
Title:Long period fiber grating around the dispersion turning point fabricated with a femtosecond laser
Authors:Shen, Fangcheng (1); Zhou, Kaiming (2, 3); Zhang, Lin (2); Shu, Xuewen (1)
Author affiliation:(1) Wuhan National Laboratory for Optoelectronics and oSchool of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan; 430074, China; (2) Aston Institute of Photonic Technologies, Aston University, Birmingham; B4 7ET, United Kingdom; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Corresponding author:Shu, Xuewen(xshu@hust.edu.cn)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F83-ACPC 2017
Part number:1 of 1
Issue title:Asia Communications and Photonics Conference, ACPC 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:Asia Communications and Photonics Conference, ACPC 2017
Conference date:November 10, 2017 - November 13, 2017
Conference location:Huanshi Dong (City Ring East) Road, Guangzhou, Uangdong, 510064, China
Conference code:139338
Publisher:OSA - The Optical Society
Abstract:Long period fiber grating around the dispersion turning point, which exhibits high sensitivity to measurands such as temperature and refractive index, is fabricated in single mode fiber with a femtosecond laser for the first time. 2017 OSA.
Number of references:5
Page count:3
Main heading:Diffraction gratings
Controlled terms:Dispersion (waves) - Fabrication - Femtosecond lasers - Photonics - Refractive index - Single mode fibers
Uncontrolled terms:High sensitivity - Long period fiber grating - Turning points
Classification code:741 Light, Optics and Optical Devices
DOI:10.1364/ACPC.2017.Su2A.104
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<167>
Accession number:20173304042248
Title:Large aperture lidar receiver optical system based on diffractive primary lens
Authors:Zhu, Jinyi (1, 2); Xie, Yongjun (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Abbreviated source title:Hongwai yu Jiguang Gongcheng Infrared Laser Eng.
Volume:46
Issue:5
Issue date:May 25, 2017
Publication year:2017
Article number:0518001
Language:Chinese
ISSN:10072276
Document type:Journal article (JA)
Publisher:Chinese Society of Astronautics
Abstract:Diffractive optical systems are promising in large aperture lidar receiver applications. The negative dispersion effect on lidar image quality caused by the diffractive primary lens was analyzed. Two chromatic aberration correcting methods, inserting high dispersion glass and adopting Schupmann theory, were discussed. An achromatic system based on Schupmann theory was lightweight, and provided perfect image quality. And the system light transmittance was over 60%. A design of lidar receiver optical system with 1m aperture and 1 mrad max FOV was demonstrated, and the system f/# was 8. The image quality attained diffraction limit approximately. 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
Number of references:22
Main heading:Aberrations
Controlled terms:Diffraction - Dispersions - Image quality - Lenses - Optical design - Optical radar - Optical systems
Uncontrolled terms:Achromatic - Achromatic system - Chromatic aberration - Diffraction limits - Diffractive lens - Diffractive optical systems - Dispersion effect - Light transmittance
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 951 Materials Science
Numerical data indexing:Percentage 6.00e+01%, Size 1.00e+00m
DOI:10.3788/IRLA201746.0518001
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<168>
Accession number:20173804169208
Title:A universal pedestrian's foot-point and head-point recognition with improved motion detection algorithm
Authors:Shi, Liu (1, 2); Liu, Jiahang (1); Yihao, Wang (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics of CAS, China; (2) University of Chinese Academy of Sciences, Beijing, China
Source title:2017 2nd International Conference on Image, Vision and Computing, ICIVC 2017
Abbreviated source title:Int. Conf. Image, Vis. Comput., ICIVC
Part number:1 of 1
Issue title:2017 2nd International Conference on Image, Vision and Computing, ICIVC 2017
Issue date:July 18, 2017
Publication year:2017
Pages:281-287
Article number:7984562
Language:English
ISBN-13:9781509062379
Document type:Conference article (CA)
Conference name:2nd International Conference on Image, Vision and Computing, ICIVC 2017
Conference date:June 2, 2017 - June 4, 2017
Conference location:Chengdu, China
Conference code:129351
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Detecting pedestrians' spatial locations is a key, yet challenging task in video surveillance. From video sequences, we can apply motion detection algorithm to detect the whole pedestrians, and recognize pedestrians' foot-point locations with foot-point recognition method. While we propose a solution to recognize pedestrians' head-point locations for partially occluded pedestrians in complex scenes. Then, a few simple mappings can be used for converting head-point to foot-point and converting 2-D locations to 3-D spatial locations in computer vision. In this paper, we present a pixel-level background sample set motion detection approach based on Self-Balanced SENsitivity SEgmenter, coined SuBSENSE algorithm. Instead of using the same background/foreground segmentation criterion for low and high brightness distribution areas, we use completely different segmentation criterion for low and high brightness, respectively. Besides, for an actual scenario with camouflaged foreground objects, simple color and texture feature could not detect these motion objects. To best address these disadvantages, we introduce normalized color feature and extended local binary similarity pattern (ELBSP) operator by adaptive threshold to segment motion objects for high brightness while providing normalized color feature by perception-inspired confidence interval for high brightness. Due to the diversity of camera gesture in video images, we can't directly gain foot-point and head-point location from the results of motion detection. For foot-point, principal component analysis is employed in getting pedestrian's upright direction and mapping the whole object to this direction. Moreover, color feature, area feature, and position feature are utilized for detecting head-point. Experiments show that it outperforms original motion detection approach and several state-of-the-art methods, and can accurately obtain pedestrians' 2-D locations in real scenarios. 2017 IEEE.
Number of references:15
Main heading:Motion analysis
Controlled terms:Color - Feature extraction - Financial data processing - Image segmentation - Location - Luminance - Mapping - Motion compensation - Object detection - Principal component analysis - Security systems - Signal detection
Uncontrolled terms:Color and texture features - Foot points - Head-point - Motion detection - Recognition methods - Similarity patterns - State-of-the-art methods - Video surveillance
Classification code:405.3 Surveying - 716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing - 741.1 Light/Optics - 914.1 Accidents and Accident Prevention - 922.2 Mathematical Statistics
DOI:10.1109/ICIVC.2017.7984562
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<169>
Accession number:20161002045137
Title:Modeling Disease Progression via Multisource Multitask Learners: A Case Study with Alzheimer's Disease
Authors:Nie, Liqiang (1); Zhang, Luming (2); Meng, Lei (3); Song, Xuemeng (4); Chang, Xiaojun (5); Li, Xuelong (6)
Author affiliation:(1) School of Computer Science and Technology, Shandong University, Jinan; 250100, China; (2) Department of Electric Engineering and Information System, Hefei University of Technology, Hefei; 230009, China; (3) Jt. NTU-Univ. of British Columbia Research Center of Excellence in Active Living for the Elderly, Nanyang Technological University, Singapore; 639798, Singapore; (4) School of Computing, National University of Singapore, Singapore; 119077, Singapore; (5) Centre for Quantum Computation and Intelligent Systems, University of Technology Sydney, Sydney; NSW; 2007, Australia; (6) State Key Laboratory of Transient Optics and Photonics, Center for Optical Imagery Analysis and Learning, Xi'an Institute of Optics and Precision Mechanics, Xi'an; 710119, China
Source title:IEEE Transactions on Neural Networks and Learning Systems
Abbreviated source title:IEEE Trans. Neural Networks Learn. Sys.
Volume:28
Issue:7
Issue date:July 2017
Publication year:2017
Pages:1508-1519
Article number:7419264
Language:English
ISSN:2162237X
E-ISSN:21622388
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Understanding the progression of chronic diseases can empower the sufferers in taking proactive care. To predict the disease status in the future time points, various machine learning approaches have been proposed. However, a few of them jointly consider the dual heterogeneities of chronic disease progression. In particular, the predicting task at each time point has features from multiple sources, and multiple tasks are related to each other in chronological order. To tackle this problem, we propose a novel and unified scheme to coregularize the prior knowledge of source consistency and temporal smoothness. We theoretically prove that our proposed model is a linear model. Before training our model, we adopt the matrix factorization approach to address the data missing problem. Extensive evaluations on real-world Alzheimer's disease data set have demonstrated the effectiveness and efficiency of our model. It is worth mentioning that our model is generally applicable to a rich range of chronic diseases. 2012 IEEE.
Number of references:45
Main heading:Neurodegenerative diseases
Controlled terms:Factorization - Forecasting - Learning systems
Uncontrolled terms:Alzheimer's disease - Disease progression - Effectiveness and efficiencies - Machine learning approaches - Matrix factorizations - Multisources - source consistency - Temporal regularization
Classification code:461.6 Medicine and Pharmacology - 921 Mathematics
DOI:10.1109/TNNLS.2016.2520964
Funding details: Number: 61572169, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China under Grant 61572169.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<170>
Accession number:20172403755708
Title:Dispersion management of a compact all fiber Yb doped NPE passive mode-locked oscillator by a tapered fiber
Authors:Yang, Peilong (1, 2); Hu, Zhongqi (1, 2); Teng, Hao (2); Lv, Zhiguo (3); Wei, Zhiyi (2)
Author affiliation:(1) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710071, China; (2) Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing; 100190, China; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, xi'an; 710119, China
Corresponding author:Wei, Zhiyi(zywei@iphy.ac.cn)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F41-CLEO_SI 2017
Part number:1 of 1
Issue title:CLEO: Science and Innovations, CLEO_SI 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:CLEO: Science and Innovations, CLEO_SI 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:135888
Publisher:OSA - The Optical Society
Abstract:We explored dispersion management of a NPE mode-locked Yb-doped all fiber oscillator by a tapered fiber, the compressed pulse duration of 116fs, power of 36mW , spectrum is widened to near 20nm. 2017 OSA.
Number of references:4
Page count:2
Main heading:Fibers
Controlled terms:Locks (fasteners)
Uncontrolled terms:All fiber - Compressed pulse - Dispersion management - Mode-locked - Passive mode-locked - Tapered fiber - Yb-doped
Classification code:547.2 Rare Earth Metals
Numerical data indexing:Power 3.60e-02W, Size 2.00e-08m, Time 1.16e-13s
DOI:10.1364/CLEO_SI.2017.SM4L.8
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<171>
Accession number:20174504379313
Title:Influence of test equipment pose error on dividing error measurement based on autocollimator
Authors:Tian, Liu-De (1, 2); Zhao, Jian-Ke (1); Wang, Tao (1); Zhao, Huai-Xue (1); Duan, Ya-Xuan (1, 2); Liu, Zhao-Hui (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Tian, Liu-De(tianliude@126.com)
Source title:Guangxue Jingmi Gongcheng/Optics and Precision Engineering
Abbreviated source title:Guangxue Jingmi Gongcheng
Volume:25
Issue:9
Issue date:September 1, 2017
Publication year:2017
Pages:2267-2276
Language:Chinese
ISSN:1004924X
CODEN:GJGOF4
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences
Abstract:In order to improve the measurement accuracy of dividing error of encoders, the principle and method to measure dividing error by using angular polygon and autocollimator were introduced, and the error sources were analyzed. According to the measurement principle, coordinate systems of angular polygon and autocollimator were established. Utilizing the method of coordinate transformation, precise mathematical models were deduced for indicating the relationships between dividing error and misalignment errors, such as parallelism error between the angular polygon working surface and the axis of the tested unit, perpendicularity error between autocollimator optical axis and the working surface of angular polygon, parallelism error between vertical wire of the autocollimator and the axis of the tested unit. In order to verify the error models of misadjustment, three experiments were performed in the laboratory, taking the positioning error of a single-axis position turntable as test object. The experimental and theoretical results have good consistency and the maximum deviation was less than 0.9″, which indicate that the error models of misadjustment are applicable to guide dividing error measurement. 2017, Science Press. All right reserved.
Number of references:21
Main heading:Geometry
Controlled terms:Equipment testing - Error analysis - Mathematical transformations
Uncontrolled terms:Angular polygon - Autocollimators - Co-ordinate system - Co-ordinate transformation - Coodinate transformation - Error measurements - Measurement accuracy - Misalignment errors
Classification code:921 Mathematics - 921.3 Mathematical Transformations
DOI:10.3788/OPE.20172509.2267
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<172>
Accession number:20163702783562
Title:Femtosecond passively Er-doped mode-locked fiber laser with WS
Authors:Li, Lu (1, 2); Su, Yulong (1); Wang, Yonggang (1); Wang, Xi (1); Wang, Yishan (1, 3); Li, Xiaohui (3); Mao, Dong (4); Si, Jinhai (2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; (3) School of Physics and information Technology, Shaanxi Normal University, Xi'an; 710119, China; (4) Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an; 710072, China
Corresponding author:Li, Lu(lilu@opt.cn)
Source title:IEEE Journal of Selected Topics in Quantum Electronics
Abbreviated source title:IEEE J Sel Top Quantum Electron
Volume:23
Issue:1
Issue date:January-February 2017
Publication year:2017
Article number:7426731
Language:English
ISSN:07921233
E-ISSN:21910359
CODEN:IJSQEN
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:This study presents the femtosecond fundamental and harmonic mode-locked Er-doped fiber laser with WS
Number of references:52
Main heading:Mode-locked fiber lasers
Controlled terms:Erbium compounds - Fiber lasers - Fibers - Harmonic analysis - Heat resistance - Locks (fasteners) - Nonlinear optics - Optical materials - Pulse repetition rate - Saturable absorbers - Signal to noise ratio - Tungsten compounds
Uncontrolled terms:Antioxidant capacity - Damage threshold - Er-doped fiber laser - Harmonic mode locking - Modulation depth - Non-linear optical material - Non-saturable loss - Ultrafast nonlinear optics
Classification code:716.1 Information Theory and Signal Processing - 741.1.1 Nonlinear Optics - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 744.4 Solid State Lasers - 921.6 Numerical Methods
Numerical data indexing:Decibel 6.60e+01dB, Frequency 1.02e+07Hz, Frequency 4.61e+08Hz, Percentage 1.10e+01%, Percentage 1.80e+01%, Power 3.50e-01W, Surface_Power_Density 5.00e+10W/m2, Time 6.60e-13s, Time 7.10e-13s
DOI:10.1109/JSTQE.2016.2538640
Funding details: Number: SKLST201401, Acronym: CAAS, Sponsor: Chinese Academy of Agricultural Sciences;Number: 61378024, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61378024, and the Open Research Fund of the State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Science under Grant SKLST201401.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<173>
Accession number:20175104560097
Title:Effects of Spatial Electrons on Signal-Noise-Ratio of a X-ray Communication System
Authors:Li, Yao (1, 2); Su, Tong (1, 2); Sheng, Li-Zhi (1); Qiang, Peng-Fei (1, 2); Xu, Neng (1, 2, 3); Li, Lin-Sen (1, 2, 4); Zhao, Bao-Sheng (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; (4) School of Sciences, Xi'an Jiaotong University, Xi'an; 710049, China
Corresponding author:Qiang, Peng-Fei(qiangpengfei@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:11
Issue date:November 1, 2017
Publication year:2017
Article number:1106002
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:A model of electron interacting with nested X-ray focusing optics was designed firstly. Then the process of electrons interacting with coating material of X-ray focusing optics and the quantum efficiency of X-ray source by using a Monte Carlo N Particle transport code was analysized. Simulation results accord well with the analyze results. Finally, a silicon drift detector, which has an energy resolution of 125 eV was used to analysis the energy spectrum in the focal point. In the detecting part, X-ray photons are composed of two parts, signal photons generated by the X-ray source and noisy X-ray photons generated from nested X-ray focusing optics' coating material. According to different conditions of X-ray source and electron gun voltage, the number of signal photon, noisy photon and signal to noise ratio of the X-ray communication demonstration system then can be calculated. Experiment and calculate results show that nested X-ray focusing optics can effectively filter spatial particles, which will optimize the signal to noise ratio of X-ray communication system. When the number of incident electrons is about 1×108counts per second with an energy distribution from 1~20 keV, signal to noise ratio of the X-ray communication demonstration system can reach at least 15.1 dB. These results will provide foundations for optimizing the core parameters of X-ray communication system in the future. 2017, Science Press. All right reserved.
Number of references:22
Main heading:X rays
Controlled terms:Coatings - Electron guns - Electron sources - Electrons - Focusing - Light - Photons - Plating - Quantum chemistry - Signal to noise ratio - X ray apparatus
Uncontrolled terms:Energy distributions - Energy resolutions - Fluoresycence - Focusing optics - Incident electrons - Monte carlo n particles - Silicon Drift Detector - X-ray focusing optics
Classification code:539.3 Metal Plating - 714.1 Electron Tubes - 716.1 Information Theory and Signal Processing - 741.1 Light/Optics - 801.4 Physical Chemistry - 813.2 Coating Materials - 931.3 Atomic and Molecular Physics - 932.1 High Energy Physics
Numerical data indexing:Decibel 1.51e+01dB, Electron_Volt 1.00e+03eV to 2.00e+04eV, Electron_Volt 1.25e+02eV
DOI:10.3788/gzxb20174611.1106002
Funding details: Number: 61471357, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The National Natural Science Foundation of China (No. 61471357) and the Western Light Research Program of the Chinese Academy of Sciences.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<174>
Accession number:20181304958855
Title:Simultaneous, real-time, chromatic polarimetric imaging technology with full-polarization-state detection
Authors:Ju, Hai-Juan (1, 2); Liang, Jian (1, 2); Zhang, Wen-Fei (1, 2); Bai, Zhao-Feng (1); Ren, Li-Yong (1); Qu, En-Shi (1)
Author affiliation:(1) Department of Information Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves
Abbreviated source title:Hongwai Yu Haomibo Xuebao
Volume:36
Issue:6
Issue date:December 1, 2017
Publication year:2017
Pages:744-748
Language:Chinese
ISSN:10019014
CODEN:HHXUEZ
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:As a new kind of optical imaging technology, polarimetric imaging can efficiently increase the detection dimension of the information by detecting the polarization properties of the optical wave. This is useful for obtaining the target information comprehensively and accurately. Firstly, the method of polarization imaging detecting was introduced and the typical polarization imaging systems are reviewed in this paper. Then, based on Stokes Vector, a simultaneous, real-time, division of aperture chromatic polarimetric imaging camera with full-polarization-state detection was introduced in detail. Finally, the experimental results of full polarimetric imaging and polarimetric dehazing imaging using this camera were demonstrated. The experimental results indicate that the polarimetric imaging technology of full polarization states simultaneous detecting has obvious advantages on developing the detecting distance and acquiring the detail features, so it can provide important supplement for modern optical imaging system. 2017, Science Press. All right reserved.
Number of references:24
Main heading:Polarization
Controlled terms:Cameras - Demulsification - Imaging systems - Optical image storage - Polarimeters
Uncontrolled terms:Division of aperture - Full polarization state - Optical imaging system - Optical imaging technology - Polarimetric imaging - Polarization imaging - Polarization properties - Simultaneous detection
Classification code:722.1 Data Storage, Equipment and Techniques - 742.2 Photographic Equipment - 746 Imaging Techniques - 802.3 Chemical Operations - 941.3 Optical Instruments
DOI:10.11972/j.issn.1001-9014.2017.06.018
Funding details: Number: 61275149, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61505246, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61535015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Foundation items: Supported by National Natural Science Foundation of China(61505246, 61535015, 61275149).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<175>
Accession number:20171703607634
Title:Ultra-short wavelength operation in Thulium-doped silica fiber laser with bidirectional pumping
Authors:Xiao, Xusheng (1, 2); Guo, Haitao (1); Yan, Zhijun (1); Wang, Hushan (1); Xu, Yantao (1); Lu, Min (1); Wang, Yishan (1); Peng, Bo (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi'an, Shaanxi; 710119, China; (2) Graduate School, Chinese Academy of Sciences (CAS), Beijing; 100049, China
Corresponding author:Guo, Haitao
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102561F
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:An ultra-short wavelength operation of Tm-doped all fiber laser based on fiber Bragg gratings (FBGs) was developed. A bi-directional pump configuration for the ultra-short wavelength operation was designed and investigated for the first time. the laser yielded 3.15W of continuous-wave output at 1706.75nm with a narrow-linewidth of ～50pm and a maximum slope efficiency of 42.1%. The dependencies of the slope efficiencies and pump threshold of the laser versus the length of active fiber and reflectivity of the output mirror (FBG) were investigated in detail. An experimental comparative study between two Thulium-doped fiber lasers (TDFLs) with two different pumping configuration(forward unidirectional pumping and bidirectional pumping) was presented. It is indisputable that the development of 1.7μm silicate fiber lasers with Watt-level output power open up a number of heart-stirring and tempting application windows. 2017 SPIE.
Number of references:20
Main heading:Pumping (laser)
Controlled terms:Efficiency - Fiber Bragg gratings - Fiber lasers - Fibers - Laser mirrors - Photonics - Silica - Silicates - Thulium
Uncontrolled terms:Bidirectional pumping - Comparative studies - Fiber Bragg gratings (FBGs) - Pump configuration - Pumping configurations - Short wavelengths - Slope efficiencies - Thulium-doped fibers
Classification code:547.2 Rare Earth Metals - 741.1 Light/Optics - 744 Lasers - 913.1 Production Engineering
Numerical data indexing:Power 3.15e+00W, Size 1.70e-06m, Size 1.71e-06m, Percentage 4.21e+01%
DOI:10.1117/12.2256818
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<176>
Accession number:20172103685887
Title:Thermal characteristics of compact conduction-cooled high power diode laser array packages
Authors:Zhang, Pu (1); Liu, Xingsheng (1, 2); Zhu, Qiwen (1); Wang, Jingwei (2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an Hi-Tech Industrial Development Zone, No. 17 Xinxi Road, New Industrial Park, Xi'an, Shaanxi; 710119, China; (2) Focuslight Technologies Co., LTD, Xi'an Hi-Tech Industrial Development Zone, No. 60 Xibu Road, New Industrial Park, Xi'an, Shaanxi; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10085
Part number:1 of 1
Issue title:Components and Packaging for Laser Systems III 2017
Issue date:2017
Publication year:2017
Article number:100850A
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510606111
Document type:Conference article (CA)
Conference name:Components and Packaging for Laser Systems III 2017
Conference date:January 31, 2017 - February 2, 2017
Conference location:San Francisco, CA, United states
Conference code:127684
Sponsor:The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Thermal management is one of the most important factors affecting the performance of high power diode lasers. In this paper, transient thermal behavior of conduction-cooled high power diode lasers has been studied using finite element method. The effects of heat sink geometry, ceramics size on the junction temperature of high power diode laser packages have been analyzed. Based on the simulations, heat dissipation capability of high power diode laser packages is improved and compact conduction-cooled diode laser array packages with 3 bars and 5 bars are fabricated. The power ～ current and spectrum of the optimized high power diode laser array packages at different operation parameters are characterized at different pulse widths, repetition frequencies and TEC temperatures. The effects of temperature on the output power and spectrum are discussed. The lifetime test of high power diode laser array packages is also performed. It shows that the conduction-cooled high power diode laser array packages have good optical performance. 2017 SPIE.
Number of references:11
Main heading:Semiconductor lasers
Controlled terms:Diodes - Finite element method - Laser beam welding - Packaging - Power semiconductor diodes - Temperature
Uncontrolled terms:Conduction cooled - Effects of temperature - Heat dissipation capability - High power diode laser - High-power diode laser arrays - Junction temperatures - Thermal characteristics - Thermal optimization
Classification code:641.1 Thermodynamics - 694.1 Packaging, General - 744.4.1 Semiconductor Lasers - 744.9 Laser Applications - 921.6 Numerical Methods
DOI:10.1117/12.2250258
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<177>
Accession number:20171703607655
Title:The cooling control system for focal plane assembly of astronomical satellite camera based on TEC
Authors:Yuqing, He (1, 2); Yunfei, Du (1); Wei, Gao (1); Baopeng, Li (1); Xuewu, Fan (1); Wengang, Yang (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese, Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102562H
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:The dark current noise existing in the CCD of the astronomical observation camera has a serious influence on its working performance, reducing the working temperature of CCD can suppress the influence of dark current effectively. By analyzing the relationship between the CCD chip and the dark current noise, the optimum working temperature of the red band CCD focal plane is identified as -75°C. According to the refrigeration temperature, a cooling control system for focal plane based on a thermoelectric cooler (TEC) was designed. It is required that the system can achieve high precision temperature control for the target. In the cooling control system, the 80C32 microcontroller was used as its systematic core processor. The advanced PID control algorithm is adopted to control the temperature of the top end of TEC. The bottom end of the TEC setting a constant value according to the target temperature used to assist the upper TEC to control the temperature. The experimental results show that the cooling system satisfies the requirements of the focal plane for the astronomical observation camera, it can reach the working temperature of -75°C and the accuracy of ±2°C. 2017 SPIE.
Number of references:12
Main heading:Thermal management (electronics)
Controlled terms:Cameras - Charge coupled devices - Cooling - Cooling systems - Dark currents - Flight control systems - Focusing - Photonics - Temperature control - Thermoelectric equipment - Three term control systems
Uncontrolled terms:Astronomical observation - Dark current noise - Focal plane assemblies - Refrigeration temperatures - Target temperature - Thermoelectric cooler - Working performance - Working temperatures
Classification code:615.4 Thermoelectric Energy - 641.2 Heat Transfer - 711.2 Electromagnetic Waves in Relation to Various Structures - 714.2 Semiconductor Devices and Integrated Circuits - 731.1 Control Systems - 731.3 Specific Variables Control - 741.1 Light/Optics - 742.2 Photographic Equipment
Numerical data indexing:Temperature 1.98e+02K
DOI:10.1117/12.2257422
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<178>
Accession number:20170803359894
Title:Latent semantic concept regularized model for blind image deconvolution
Authors:Ye, Renzhen (1, 2); Li, Xuelong (1)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (2) School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an; Shaanxi; 710119, China
Corresponding author:Ye, Renzhen(yerenzhen@gmail.com)
Source title:Neurocomputing
Abbreviated source title:Neurocomputing
Volume:257
Issue date:September 27, 2017
Publication year:2017
Pages:206-213
Language:English
ISSN:09252312
E-ISSN:18728286
CODEN:NRCGEO
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:Blind image deconvolution refers to the recovery of a sharp image when the degradation processing is unknown. Many existing methods have the problem that they are designed to exploit low level image descriptors (e.g. image pixels or image gradient) only, rather than high-level latent semantic concepts, thus there is no guarantee of human visual perception. To address this problem, in this paper, a latent semantic concept regularized (LSCR) method is proposed to reduce the blind deconvolution problem at a semantic level. The proposed method explores the relationship between different image descriptors and exploits sparse measure to favor sharp images over blurry images. And matrix factorization is introduced to learn the latent concepts from the image descriptors. Then, the image prior can be described and constrained by the learned latent semantic concepts of image descriptors using a much more effective convolution matrix. In this case, the blind deconvolution problem can be regularized and the sharp version of the blurry image can be recovered at a new latent semantic level. Furthermore, an iterative algorithm is exploited to derive optimal solution. The proposed model is evaluated on two different datasets, including simulation dataset and real dataset, and state-of-the-art performance is achieved compared with other methods. 2017 Elsevier B.V.
Number of references:58
Main heading:Iterative methods
Controlled terms:Convolution - Factorization - Learning systems - Matrix algebra
Uncontrolled terms:Blind deconvolution - Blind image deconvolution - Degradation processing - Human visual perception - Latent semantics - Manifold regularized - Matrix factorizations - State-of-the-art performance
Classification code:716.1 Information Theory and Signal Processing - 921 Mathematics
DOI:10.1016/j.neucom.2016.11.064
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<179>
Accession number:20164603021588
Title:Adaptive synchronization of delayed reaction-diffusion neural networks with unknown non-identical time-varying coupling strengths
Authors:Li, Junmin (1); He, Chao (1); Zhang, Weiyuan (2); Chen, Minglai (1, 3)
Author affiliation:(1) School of Mathematics and Statistics, Xidian University, Xi'an; 710071, China; (2) Institute of Nonlinear Science, Xianyang Normal University, Xianyang; 712000, China; (3) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China
Corresponding author:Li, Junmin(jmli@mail.xidian.edu.cn)
Source title:Neurocomputing
Abbreviated source title:Neurocomputing
Volume:219
Issue date:January 5, 2017
Publication year:2017
Pages:144-153
Language:English
ISSN:09252312
E-ISSN:18728286
CODEN:NRCGEO
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:This paper concerns the asymptotic synchronization of delayed reaction-diffusion neural networks (RDNNs) with unknown nonidentical time-varying coupling strengths, where the time-varying coupling strengths are consist of continuous time-varying periodic parameters and time-invariant nonnegative parameters. By utilizing a novel adaptive approach, the differential-difference type adaptive laws of coupling strengths and adaptive controller are designed such that the nonidentical RDNNs are asymptotic synchronization. The sufficient conditions dependent on the reaction-diffusion terms are derived by constructing a novel Lyapunov-Krasovskii-like composite energy functional (CEF) and using Barbalat's lemma. Finally, a simulation example is provided to illustrate the effectiveness of the developed approach. 2016 Elsevier B.V.
Number of references:43
Main heading:Time varying networks
Controlled terms:Continuous time systems - Diffusion in liquids - Synchronization
Uncontrolled terms:Adaptive - Asymptotic synchronization - Composite energy - Reaction-diffusion neural networks - Time-varying coupling strengths
Classification code:703.1 Electric Networks - 961 Systems Science
DOI:10.1016/j.neucom.2016.09.006
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<180>
Accession number:20182305271468
Title:CCD imagers MTF enhanced filter design
Authors:Jian, Zhang (1, 2); Yangyu, Fan (1); Zhe, Xu (2)
Author affiliation:(1) Institute of Information, Northwest Polytechnical University, Xi'an, China; (2) Space Optics Lab, Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an, China
Source title:International Conference on Communication Technology Proceedings, ICCT
Abbreviated source title:Int. Conf. Commun. Technol. Proc. ICCT
Volume:2017-October
Part number:1 of 1
Issue title:2017 17th IEEE International Conference on Communication Technology, ICCT 2017
Issue date:July 2, 2017
Publication year:2017
Pages:1720-1724
Language:English
ISBN-13:9781509039432
Document type:Conference article (CA)
Conference name:17th IEEE International Conference on Communication Technology, ICCT 2017
Conference date:October 27, 2017 - October 30, 2017
Conference location:Chengdu, China
Conference code:136565
Sponsor:IEEE; SIE
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In order to improve the imaging quality of the optical imagers, the modulation transfer function enhanced CCD signal filter circuit is designed. Firstly, the imager MTF transfer chain is discussed, and the impact to MTF causing by each part of imaging chain is introduced. Secondly, from frequency domain and time domain respectively the MTF enhanced filter principle and implementation method are analyzed, the filter minimum bandwidth is confirmed. By comparing the step response of the filter and the response of the camera to the Nyquist spatial frequency fringe imaging in simulation experiment, the optimum quality factor of the MTF enhancement filter is determined. Lastly, the camera MTF test was carried out using black and white stripe target, and the SNR of the camera was measured by integrating sphere. The test results show that MTF enhanced filter can improve the system MTF 30% when the quality factor is 1, and the noise suppression capability is comparable to that of the maximally flat filter in the pass-band. MTF enhancement filter can effectively improve the imaging performance of CCD camera. 2017 IEEE.
Number of references:17
Main heading:Image enhancement
Controlled terms:Bandpass filters - Butterworth filters - CCD cameras - Chains - Frequency domain analysis - Low pass filters - Modulation - Optical transfer function - Signal to noise ratio - Time domain analysis - Transfer functions
Uncontrolled terms:Frequency domains - Imaging performance - Integrating spheres - Maximally flat filters - Modulation transfer function (MTF) - Quality factors - Signal-noise ratio - Spatial frequency
Classification code:602.1 Mechanical Drives - 703.2 Electric Filters - 714.2 Semiconductor Devices and Integrated Circuits - 716.1 Information Theory and Signal Processing - 741.1 Light/Optics - 921 Mathematics - 921.3 Mathematical Transformations
Numerical data indexing:Percentage 3.00e+01%
DOI:10.1109/ICCT.2017.8359924
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<181>
Accession number:20171503568129
Title:Efficient modulation of orthogonally polarized infrared light using graphene metamaterials
Authors:Cui, Yudong (1, 2); Zeng, Chao (2)
Author affiliation:(1) State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou; 310027, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Zeng, Chao(zengchao@opt.cn)
Source title:Journal of Applied Physics
Abbreviated source title:J Appl Phys
Volume:121
Issue:14
Issue date:April 14, 2017
Publication year:2017
Article number:143102
Language:English
ISSN:00218979
E-ISSN:10897550
CODEN:JAPIAU
Document type:Journal article (JA)
Publisher:American Institute of Physics Inc.
Abstract:We propose an efficient modulation of linearly polarized infrared light using graphene metamaterials (GMMs) by exploiting the phase-coupled plasmon-induced transparency (PIT) mechanism. Because of the phase-coupling effect in GMMs, pronounced PIT peaks can be simultaneously obtained for the orthogonally polarized light through tuning of the Fermi level in graphene. Taking advantage of such polarization-selective PIT spectral responses and precise phase management, a dual-polarization GMM modulator is successfully achieved with ultra-high modulation depths of ～32 dB at 10 μm and ～28 dB at 12.45 μm for the x- and y-polarized light beams, respectively. The underlying principle of the proposal is well explained and verified by using transfer matrix method. The proposed scheme provides new opportunities for developing graphene-integrated high-performance electro-optical modulation, switching, and other optoelectronics applications. 2017 Author(s).
Number of references:31
Main heading:Transfer matrix method
Controlled terms:Graphene - Light polarization - Metamaterials - Modulation
Uncontrolled terms:Dual-polarizations - Electro-optical modulation - Induced transparency - Linearly polarized - Modulation depth - Polarized light beams - Spectral response - Underlying principles
Classification code:741.1 Light/Optics - 761 Nanotechnology - 804 Chemical Products Generally - 921 Mathematics - 951 Materials Science
Numerical data indexing:Size 1.00e-05m, Size 1.24e-05m
DOI:10.1063/1.4980029
Funding details: Number: 2015KCT-06, Acronym: -, Sponsor: -;Number: 61525505, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under Grant Agreement No. 61525505 and by the Key Scientific and Technological Innovation Team Project in Shaanxi Province (2015KCT-06).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<182>
Accession number:20173804172573
Title:Modeling Information Diffusion over Social Networks for Temporal Dynamic Prediction
Authors:Li, Dong (1, 2); Zhang, Shengping (3); Sun, Xin (3); Zhou, Huiyu (4); Li, Sheng (5); Li, Xuelong (6)
Author affiliation:(1) School of Electrical and Information Engineering, Shandong University, Weihai; 264209, China; (2) Harbin Institute of Technology, Harbin; 150001, China; (3) School of Computer Science and Technology, Harbin Institute of Technology, Weihai; 264200, China; (4) Centre for Secure Information Technologies (CSIT), Queen's University Belfast, Belfast; BT7 1NN, United Kingdom; (5) School of Computer Science and Technology, Harbin Institute of Technology, Harbin; 150001, China; (6) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Zhang, Shengping(s.zhang@hit.edu.cn)
Source title:IEEE Transactions on Knowledge and Data Engineering
Abbreviated source title:IEEE Trans Knowl Data Eng
Volume:29
Issue:9
Issue date:September 1, 2017
Publication year:2017
Pages:1985-1997
Article number:7921565
Language:English
ISSN:10414347
CODEN:ITKEEH
Document type:Journal article (JA)
Publisher:IEEE Computer Society
Abstract:Modeling the process of information diffusion is a challenging problem. Although numerous attempts have been made in order to solve this problem, very few studies are actually able to simulate and predict temporal dynamics of the diffusion process. In this paper, we propose a novel information diffusion model, namely GT model, which treats the nodes of a network as intelligent and rational agents and then calculates their corresponding payoffs, given different choices to make strategic decisions. By introducing time-related payoffs based on the diffusion data, the proposed GT model can be used to predict whether or not the user's behaviors will occur in a specific time interval. The user's payoff can be divided into two parts: social payoff from the user's social contacts and preference payoff from the user's idiosyncratic preference. We here exploit the global influence of the user and the social influence between any two users to accurately calculate the social payoff. In addition, we develop a new method of presenting social influence that can fully capture the temporal dynamics of social influence. Experimental results from two different datasets, Sina Weibo and Flickr demonstrate the rationality and effectiveness of the proposed prediction method with different evaluation metrics. 1989-2012 IEEE.
Number of references:43
Main heading:Economic and social effects
Controlled terms:Behavioral research - Forecasting - Models - Social networking (online)
Uncontrolled terms:Diffusion process - Evaluation metrics - Information diffusion - Model informations - Novel information - Prediction methods - Strategic decisions - Temporal dynamics
Classification code:723 Computer Software, Data Handling and Applications - 971 Social Sciences
DOI:10.1109/TKDE.2017.2702162
Funding details: Number: 2015ZDXX0201B02, Acronym: -, Sponsor: Department of Science and Technology of Shandong Province;Number: -, Acronym: -, Sponsor: Natural Science Foundation of Shandong Province;Number: EP/N508664/1, Acronym: -, Sponsor: Engineering and Physical Sciences Research Council;Number: 2016M600250, Acronym: -, Sponsor: China Postdoctoral Science Foundation;Number: ALGA4131016116, Acronym: -, Sponsor: Society of Hong Kong Scholars;Number: 61761130079, Acronym: -, Sponsor: National Natural Science Foundation of China;Number: 61602128, Acronym: -, Sponsor: National Natural Science Foundation of China;Number: NA160342, Acronym: -, Sponsor: -;
Funding text:D. Li was supported in part by the Hong Kong Scholar Foundation of China (No. ALGA4131016116), the China Postdoctoral Foundation (No. 2016M600250), and the Major Science and Technology Foundation of Shandong Province (No. 2015ZDXX0201B02). S. Zhang was supported in part by the Natural Science Foundation of China (No. 61672188). X. Sun was supported in part by the Natural Science Foundation of China (No. 61602128) and the Natural Science Foundation of Shandong Province (No. ZR2016FQ13). H. Zhou was supported in part by UK EPSRC under Grants EP/N508664/1 and EP/N011074/1, and Royal Society-Newton Advanced Fellowship under Grant NA160342. X. Li was supported in part by the National Natural Science Foundation of China (Grant No. 61761130079).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<183>
Accession number:20174304313456
Title:Temperature-calibrated high-precision refractometer using a tilted fiber Bragg grating
Authors:Jiang, Biqiang (1, 2); Zhou, Kaiming (2, 3); Wang, Changle (2); Zhao, Yunhe (2); Zhao, Jianlin (1); Zhang, Lin (2)
Author affiliation:(1) MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi’an; 710072, China; (2) Aston Institute of Photonic Technologies, Aston University, Birmingham; B4 7ET, United Kingdom; (3) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China
Corresponding author:Jiang, Biqiang(bqjiang@nwpu.edu.cn)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:21
Issue date:October 16, 2017
Publication year:2017
Pages:25910-25918
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We present a refractometer with main- and vernier-scale to measure the refractive index (RI) of liquids with high precision by using the fine spectrum structure of a tilted fiber Bragg grating (TFBG). The absolute RI values are determined by the accurate wavelength of cut-off mode resonances. The main- and vernier-scale are calibrated by measuring large groups of fine spectra at different cut-off mode resonances in a small RI range, and the use of vernier-scale certainly reduces the RI measurement uncertainty resulted from the discrete cladding mode resonances. The performance of the TFBG-based vernier refractometer is experimentally verified by exploring the temperature dependence of RI of anhydrous ethanol in a near infrared region, showing an enhanced accuracy to the order of 10？4, high repeatability and temperature self-calibration capability. 2017 Optical Society of America.
Number of references:25
Main heading:Refractometers
Controlled terms:Fiber Bragg gratings - Infrared devices - Refractive index - Resonance - Temperature distribution - Uncertainty analysis
Uncontrolled terms:Anhydrous ethanol - Cladding mode resonances - Measurement uncertainty - Near infrared region - Self calibration - Spectrum structure - Temperature dependence - Tilted fiber Bragg grating
Classification code:641.1 Thermodynamics - 741.1 Light/Optics - 922.1 Probability Theory - 931.1 Mechanics - 941.3 Optical Instruments
DOI:10.1364/OE.25.025910
Funding details: Number: 61505165, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 660648, Acronym: H2020, Sponsor: Horizon 2020 Framework Programme;
Funding text:Marie Sk?odowska-Curie Individual Fellowships in the European Union’s Horizon 2020 Research and Innovation Programme (660648); National Natural Science Foundation of China (61505165); Natural Science Basic Research Plan in Shaanxi Province of China (2016JQ6032).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<184>
Accession number:20181304944791
Title:Generation of carrier-envelope phase stabilized laser from solid plates and application in high-harmonic generation
Authors:Liu, Yangyang (1); He, Peng (2); Zhao, Kun (1); Huang, Hangdong (2); Jiang, Yujiao (2); Huang, Pei (3); Teng, Hao (1); He, Xinkui (1); Fang, Shaobo (1); Hou, Xun (3); Wei, Zhiyi (1)
Author affiliation:(1) Institute of Physics, Chinese Academy of Sciences, Beijing; 100190, China; (2) School of Physics and Optoelectronics Engineering, Xidian University, Xi'an; 710071, China; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Abbreviated source title:Conf. Lasers. Electr.-Opt., Proc.
Volume:2017-January
Part number:1 of 1
Issue title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Issue date:October 25, 2017
Publication year:2017
Pages:1-2
Language:English
ISBN-13:9781943580279
Document type:Conference article (CA)
Conference name:2017 Conference on Lasers and Electro-Optics, CLEO 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:131854
Sponsor:AdValue Photonics; American Elements - The Materials Science Company; Coherent; et al.; KMLabs - Leading in Ultrafast; MKS
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We demonstrated carrier-envelope phase (CEP) stabilized pulse as short as 5.4fs by compressing the octave-spanning spectrum from solid-state plates. Continuous and discrete HHG were observed by using the laser pulse as driver with different CEP. 2017 IEEE.
Number of references:8
Main heading:Harmonic generation
Uncontrolled terms:Carrier-envelope phase - High harmonic generation - Octave-spanning spectra - Solid plates - Stabilized lasers
Numerical data indexing:Time 5.40e-15s
DOI:10.1364/CLEO_SI.2017.AF1B.4
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<185>
Accession number:20173804168577
Title:On-chip quantum state generation by means of integrated frequency combs
Authors:Sciara, Stefania (1, 2); Kues, Michael (1, 3); Reimer, Christian (1); Roztocki, Piotr (1); Wetzel, Benjamin (1, 4); Bromberg, Yaron (5); Little, Brent E. (6); Chu, Sai T. (7); Moss, David J. (8); Caspani, Lucia (9); Morandotti, Roberto (1)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel Boulet, Varennes; QC; J3X1S2, Canada; (2) University of Palermo, Department of Energy, Information Engineering and Mathematical Methods, Palermo; 90128, Italy; (3) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (4) Department of Physics and Astronomy, University of Sussex, Falmer, Brighton; BN1 9RH, United Kingdom; (5) Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem; 91904, Israel; (6) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an, China; (7) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, Hong Kong; (8) Centre for Micro Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (9) Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow; G4 0NW, United Kingdom
Source title:Summer Topicals Meeting Series, SUM 2017
Abbreviated source title:Summer Top. Meet. Ser., SUM
Part number:1 of 1
Issue title:Summer Topicals Meeting Series, SUM 2017
Issue date:August 17, 2017
Publication year:2017
Pages:181-182
Article number:8012710
Language:English
ISBN-13:9781509065707
Document type:Conference article (CA)
Conference name:2017 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2017
Conference date:July 10, 2017 - July 12, 2017
Conference location:San Juan, Puerto rico
Conference code:130065
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Entangled photon-pair sources are key building blocks towards the realization of applications in quantum information processing [1], quantum communications [2], as well as imaging and sensing with resolutions exceeding the classical limit [3]. The generation of, e.g. polarization, time-energy and time-bin entangled photon-pairs has been demonstrated using spontaneous parametric down-conversion (SPDC) in nonlinear second-order media, as well as spontaneous four-wave mixing (SFWM) in third-order nonlinear media. Specifically, nonlinear (third-order) interactions in on-chip microring resonators have been widely used to achieve classical frequency combs [4], mode-lock lasers [5], signal processing [6], etc. Integrated photonics can also find applications for quantum state generation in compact, scalable and efficient devices, required for future optical quantum circuits. In particular, solutions focusing on an integrated (on-chip) approach have been recently investigated and developed, including integrated quantum circuits, sources and detectors [7]. In contrast to waveguides, microring resonators [8] with narrow resonances and high Q-factors, offer an improvement in photon-pair generation efficiency, as well as a narrow photon-pair bandwidth, making them compatible with quantum optical devices (e.g. high temporal-resolution single-photon detectors and quantum memories). Most importantly, in contrast to non-resonant waveguides, where individuals photon-pairs, featured by one signal/idler frequency pair, are generally produced, resonant nonlinear cavities (e.g., microring resonators) allow the generation of correlated photon-pairs on multiple signal/idler frequency channels [9], due to their periodic and equidistant resonance structure. 2017 IEEE.
Number of references:15
Main heading:Quantum entanglement
Controlled terms:Four wave mixing - Optical frequency conversion - Optical resonators - Particle beams - Photonics - Photons - Q factor measurement - Quantum optics - Signal processing - Waveguides
Uncontrolled terms:Correlated photon pairs - High temporal resolution - Photon pair generations - Quantum state generation - Quantum-information processing - Single-photon detectors - Spontaneous four-wave mixing - Spontaneous parametric down conversion
Classification code:714.3 Waveguides - 716.1 Information Theory and Signal Processing - 741.1.1 Nonlinear Optics - 741.3 Optical Devices and Systems - 931.3 Atomic and Molecular Physics - 931.4 Quantum Theory; Quantum Mechanics - 932.1 High Energy Physics - 942.2 Electric Variables Measurements
DOI:10.1109/PHOSST.2017.8012710
Funding details: Number: -, Acronym: CityU, Sponsor: City University of Hong Kong;Number: -, Acronym: -, Sponsor: Canadian Anesthesiologists' Society;Number: -, Acronym: -, Sponsor: Swinburne University of Technology;Number: -, Acronym: -, Sponsor: University of Strathclyde;Number: -, Acronym: -, Sponsor: University of Glasgow;Number: -, Acronym: -, Sponsor: Hebrew University of Jerusalem;Number: -, Acronym: -, Sponsor: University of Sussex;
Funding text:1INRS-EMT, 1650 Boulevard Lionel Boulet, Varennes, Québec J3X 1S2, Canada 2 University of Palermo-Department of Energy, Information Engineering and Mathematical Methods, Palermo 90128, Italy 3School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow G12 8LT, Scotland 4Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9RH, England 5 Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel 6 Xi’an Institute of Optics and Precision Mechanics of CAS, Xi’an, China 7Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, China 8Centre for Micro Photonics, Swinburne University of Technology, Hawthorn, VIC, 3122 Australia 9Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow G4 0NW, Scotland *michael.kues@emt.inrs.ca, **morandotti@emt.inrs.ca
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<186>
Accession number:20172303739792
Title:Generation of complex quantum states via integrated frequency combs
Authors:Reimer, Christian (1); Kues, Michael (1, 2); Roztocki, Piotr (1); Wetzel, Benjamin (1, 3); Little, Brent E. (4); Chu, Sai T. (5); Caspani, Lucia (6); Moss, David J. (7); Morandotti, Roberto (1, 8)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) Department of Physics and Astronomy, University of Sussex, Falmer, Brighton; BN1 9QH, United Kingdom; (4) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China; (5) City University of Hong Kong, Department of Physics and Material Science, Tat Chee Avenue, Hong Kong, Hong Kong; (6) Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow; G4 0NW, United Kingdom; (7) Center for Micro-Photonics, Swinburne University of Technology, Hawthorne; VIC; 3122, Australia; (8) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Corresponding author:Morandotti, Roberto(morandotti@emt.inrs.ca)
Source title:Proceedings of the 2017 Design, Automation and Test in Europe, DATE 2017
Abbreviated source title:Proc. Des., Auto. Test Europe, DATE
Part number:1 of 1
Issue title:Proceedings of the 2017 Design, Automation and Test in Europe, DATE 2017
Issue date:May 11, 2017
Publication year:2017
Pages:336-337
Article number:7927012
Language:English
ISBN-13:9783981537093
Document type:Conference article (CA)
Conference name:20th Design, Automation and Test in Europe, DATE 2017
Conference date:March 27, 2017 - March 31, 2017
Conference location:Swisstech, Lausanne, Switzerland
Conference code:127781
Sponsor:ACM Special Interest Group on Design Automation (ACM SIGDA); Electronic System Design Alliance (ESDA); et al.; European Design and Automation Association (EDAA); European Electronic Chips and Systems Design Initiative (ECSI); IEEE Council on Electronic Design Automation (CEDA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:The generation of optical quantum states on an integrated platform will enable low cost and accessible advances for quantum technologies such as secure communications and quantum computation. We demonstrate that integrated quantum frequency combs (based on high-Q microring resonators made from a CMOS-compatible, high refractive-index glass platform) can enable, among others, the generation of heralded single photons, cross-polarized photon pairs, as well as bi- and multi-photon entangled qubit states over a broad frequency comb covering the S, C, L telecommunications band, constituting an important cornerstone for future practical implementations of photonic quantum information processing. 2017 IEEE.
Number of references:9
Main heading:Quantum entanglement
Controlled terms:Four wave mixing - Light - Mixer circuits - Nonlinear optics - Photons - Quantum computers - Quantum cryptography - Quantum optics - Refractive index
Uncontrolled terms:Cross-polarized photon pairs - Heralded single photons - High refractive index glass - Integrated optics devices - Integrated platform - Microring resonator - Quantum technologies - Quantum-information processing
Classification code:713.3 Modulators, Demodulators, Limiters, Discriminators, Mixers - 722 Computer Systems and Equipment - 741.1 Light/Optics - 741.1.1 Nonlinear Optics - 931.3 Atomic and Molecular Physics - 931.4 Quantum Theory; Quantum Mechanics
DOI:10.23919/DATE.2017.7927012
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<187>
Accession number:20164402973003
Title:Study on the key technologies of a high-speed CMOS camera
Authors:Jiang, Baotan (1, 2, 3); Pan, Zhibin (1); Qiu, Yuehong (2)
Author affiliation:(1) Xi'an Jiaotong University, Xi'an; 710049, China; (2) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (3) University of Chinese Academy of Sciences, Beijing; 10039, China
Corresponding author:Jiang, Baotan(jbt21@163.com)
Source title:Optik
Abbreviated source title:Optik
Volume:129
Issue date:January 1, 2017
Publication year:2017
Pages:100-107
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Elsevier GmbH
Abstract:The high-speed CMOS camera can be widely applied in image technology detection, image measurement, video monitoring, and satellite remote sensing. Given the large image data volume, many technical problems may be encountered in acquisition and transfer of image data and real-time processing. CMV4000 from CMOSIS Company has been selected as image sensor to research application problems. The high-frame and high-definition industrial camera has been designed based on CMV4000 image sensor, FPGA, DDR2 SDRAM high-speed memory chip, and USB3.0 technology. The camera is made up of data automatic alignment module, image acquisition module, memory module, and transfer module. These modules have realized data alignment, acquisition, cache, and transfer of high-speed data. An automatic alignment module is proposed which based on the sliding window consists of register for high-speed image sensor with multi-channel LVDS interface. This module can automatically identify training data sent by LVDS serial channel, and lock the sliding window when finding “Training Pattern”, then realize automatic alignment and synchronization for high-speed and multi-channel data. 2016 Elsevier GmbH
Number of references:7
Main heading:Image acquisition
Controlled terms:Alignment - Cameras - CMOS integrated circuits - Dynamic random access storage - Field programmable gate arrays (FPGA) - Image sensors - Remote sensing - Speed
Uncontrolled terms:Acquisition modules - CMOS camera - Data alignments - High-speed image sensors - LVDS - Realtime processing - Research applications - Satellite remote sensing
Classification code:601.1 Mechanical Devices - 714.2 Semiconductor Devices and Integrated Circuits - 721.2 Logic Elements - 722.1 Data Storage, Equipment and Techniques - 723 Computer Software, Data Handling and Applications - 742.2 Photographic Equipment
DOI:10.1016/j.ijleo.2016.10.056
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<188>
Accession number:20170303265694
Title:Robust Sparse Coding for Mobile Image Labeling on the Cloud
Authors:Tao, Dapeng (1); Cheng, Jun (2, 3); Gao, Xinbo (4); Li, Xuelong (5); Deng, Cheng (4)
Author affiliation:(1) School of Information Science and Engineering, Yunnan University, Kunming; 650091, China; (2) Laboratory for Human Machine Control, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen; 518055, China; (3) Chinese University of Hong Kong, Hong Kong; (4) School of Electronic Engineering, Xidian University, Xi'an; 710071, China; (5) State Key Laboratory of Transient Optics and Photonics, Center for OPTical IMagery Analysis and Learning, Xi'an Institute of Optics and Precision Mechanics, Xi'an; 710119, China
Source title:IEEE Transactions on Circuits and Systems for Video Technology
Abbreviated source title:IEEE Trans Circuits Syst Video Technol
Volume:27
Issue:1
Issue date:January 2017
Publication year:2017
Pages:62-72
Article number:7428904
Language:English
ISSN:10518215
CODEN:ITCTEM
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:With the rapid development of the mobile service and online social networking service, a large number of mobile images are generated and shared on the social networks every day. The visual content of these images contains rich knowledge for many uses, such as social categorization and recommendation. Mobile image labeling has, therefore, been proposed to understand the visual content and received intensive attention in recent years. In this paper, we present a novel mobile image labeling scheme on the cloud, in which mobile images are first and efficiently transmitted to the cloud by Hamming compressed sensing, such that the heavy computation for image understanding is transferred to the cloud for quick response to the queries of the users. On the cloud, we design a sparse correntropy framework for robustly learning the semantic content of mobile images, based on which the relevant tags are assigned to the query images. The proposed framework (called maximum correntropy-based mobile image labeling) is very insensitive to the noise and the outliers, and is optimized by a half-quadratic optimization technique. We theoretically show that our image labeling approach is more robust than the squared loss, absolute loss, Cauchy loss, and many other robust loss function-based sparse coding methods. To further understand the proposed algorithm, we also derive its robustness and generalization error bounds. Finally, we conduct experiments on the PASCAL VOC'07 data set and empirically demonstrate the effectiveness of the proposed robust sparse coding method for mobile image labeling. 1991-2012 IEEE.
Number of references:77
Main heading:Social networking (online)
Controlled terms:Cloud computing - Codes (symbols) - Error analysis - Image coding - Quadratic programming - Semantics
Uncontrolled terms:Correntropy - Generalization error bounds - Half-quadratic optimizations - Mobile images - Online social networkings - Robust sparse coding - Semantic content - Sparse coding
Classification code:722.4 Digital Computers and Systems - 723 Computer Software, Data Handling and Applications - 723.2 Data Processing and Image Processing
DOI:10.1109/TCSVT.2016.2539778
Funding details: Number: 61572486, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61263048, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61572388, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61432014, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61402458, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61572486, Grant 61572388, Grant 61432014, Grant 61402458, and Grant 61263048
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<189>
Accession number:20170903396367
Title:Fabrication of micro hole array on the surface of CVD ZnS by scanning ultrafast pulse laser for antireflection
Authors:Li, Yangping (1); Zhang, Tianhui (1); Fan, Siling (1); Cheng, Guanghua (2)
Author affiliation:(1) State Key Laboratory of Solidification Processing, MIIT Key Laboratory of Radiation Detection Materials and Devices, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an; Shaanxi; 710072, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; Shaanxi; 710119, China
Corresponding author:Li, Yangping(Yangping.li@hotmail.com)
Source title:Optical Materials
Abbreviated source title:Opt Mater
Volume:66
Issue date:April 1, 2017
Publication year:2017
Pages:356-360
Language:English
ISSN:09253467
CODEN:OMATET
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:Chemical vapor deposited (CVD) ZnS is a promising long-wave infrared (8–12 μm) window material. Yet antireflection is necessary since Fresnel reflection from its surface is high due to the high refractive index of ZnS. Sub-wavelength structured surface of micro hole array was fabricated on CVD ZnS by scanning ultrafast pulse laser ablation. The effects of beam profile, pulse width and beam power on the radius and morphology of the holes were studied. Gaussian beam can cause severe melted-resolidified layers around the hole, yet Bessel beam only resulted in thin ribbon around the hole. The picosecond Bessel laser is more suitable than femtosecond laser for ablating holes on ZnS. The radius of the holes increases with increasing the Bessel beam pulse width and the beam power. But larger power may cause circle grooves around the central holes. Ordered hole array was fabricated on single side of CVD ZnS and antireflection was realized. 2017 Elsevier B.V.
Number of references:18
Main heading:Gaussian beams
Controlled terms:Ablation - Bessel functions - Chemical vapor deposition - Fabrication - II-VI semiconductors - Infrared radiation - Laser ablation - Laser beams - Refractive index - Zinc - Zinc sulfide
Uncontrolled terms:Chemical vapor deposited - Fresnel reflections - High refractive index - Long wave infrared - Pulse power - Pulsewidths - Structured surfaces - Ultrafast pulse
Classification code:546.3 Zinc and Alloys - 641.2 Heat Transfer - 711 Electromagnetic Waves - 741.1 Light/Optics - 744.8 Laser Beam Interactions - 802.2 Chemical Reactions - 804.2 Inorganic Compounds - 921 Mathematics
DOI:10.1016/j.optmat.2017.02.019
Funding details: Number: B08040, Acronym: -, Sponsor: -;Number: 2015ZF53073, Acronym: -, Sponsor: -;Number: 110-QP-2014, Acronym: -, Sponsor: -;Number: SKLST201503, Acronym: -, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: -, Sponsor: State Key Laboratory of Heavy Oil Processing;Number: -, Acronym: -, Sponsor: State Key Laboratory of Transient Optics and Photonics;
Funding text:This Research was supported by the Aviation Science Fund (Grant no. 2015ZF53073), the Open Research Fund of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences (Grant no. SKLST201503), the Fund of the State Key Laboratory of Solidification Processing (NWPU), China (Grant No. 110-QP-2014) and the 111 Project (Contract No. B08040).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<190>
Accession number:20180304652589
Title:Entangled-photons compressive ghost imaging based on spatial correlation of sensing matrix
Authors:Liu, Dawei (1, 2); Li, Lifei (1); Geng, Yixing (1); Kang, Yan (1, 2); Zhang, Tongyi (1, 2); Zhao, Wei (1, 2); Dong, Weibin (3); Shi, Kunlin (3)
Author affiliation:(1) Chinese Academy of Sciences, Xi'an Institute of Optics and Precision Mechanics, State Key Laboratory of Transient Optics and Photonics, Xi'an, China; (2) University of Chinese Academy of Sciences, Beijing, China; (3) Xi'an Institute of Electro-Mechanical Information Technology, Xi'an, China
Corresponding author:Li, Lifei(lilifei@opt.ac.cn)
Source title:Optical Engineering
Abbreviated source title:Opt Eng
Volume:56
Issue:12
Issue date:December 2017
Publication year:2017
Article number:123108
Language:English
ISSN:00913286
E-ISSN:15602303
CODEN:OPEGAR
Document type:Journal article (JA)
Publisher:SPIE
Abstract:Using the entangled photons generated by the spontaneous parametric down conversion as a light source, we demonstrate the first quantum ghost imaging system with a modified compressive sensing technique based on the spatial correlation of sensing matrix (SCCS). The ghost image is achieved at 16.27% sampling ratio of raster scanning and 0.65 photons/pixel at each measurement on average. Our results show that image quality and photon-utilization efficiency are remarkably enhanced in comparison with the traditional compressive imaging technique, due to the sensing matrix and noise-free measurement vector rebuilt by SCCS technique. It suggests the great potential of SCCS technique applied in quantum imaging and other quantum optics fields, such as quantum charactering and quantum state tomography to use the information loaded in each photon with high efficiency. 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).
Number of references:20
Main heading:Quantum entanglement
Controlled terms:Compressed sensing - Efficiency - Image enhancement - Light - Light sources - Optical frequency conversion - Photons - Quantum optics
Uncontrolled terms:Compressive imaging - Compressive sensing - Entangled photons - Ghost imaging - Quantum ghost imaging - Quantum state tomography - Spatial correlations - Spontaneous parametric down conversion
Classification code:716.1 Information Theory and Signal Processing - 741.1 Light/Optics - 741.1.1 Nonlinear Optics - 913.1 Production Engineering - 931.3 Atomic and Molecular Physics - 931.4 Quantum Theory; Quantum Mechanics
Numerical data indexing:Percentage 1.63e+01%
DOI:10.1117/1.OE.56.12.123108
Funding details: Number: KH2016003, Acronym: -, Sponsor: -;Number: XAB2015B24, Acronym: -, Sponsor: -;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 2017ZDJC-27, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 61475191, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is supported by NSFC (Grant No. 61475191), CAS "Light of West China" Program (Grant No. XAB2015B24), CNGC "Process and technology basis" program (Grant No. KH2016003) and Natural Science Basics Research Plan in Shaanxi Province of China (Grant No. 2017ZDJC-27).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<191>
Accession number:20173804172486
Title:Discrete Nonnegative Spectral Clustering
Authors:Yang, Yang (1); Shen, Fumin (1); Huang, Zi (2); Shen, Heng Tao (1); Li, Xuelong (3)
Author affiliation:(1) Center for Future Media, School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu Shi; 610051, China; (2) School of Information Technology and Electrical Engineering, University of Queensland, St Lucia; QLD; 4072, Australia; (3) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Shen, Heng Tao(shenhengtao@hotmail.com)
Source title:IEEE Transactions on Knowledge and Data Engineering
Abbreviated source title:IEEE Trans Knowl Data Eng
Volume:29
Issue:9
Issue date:September 1, 2017
Publication year:2017
Pages:1834-1845
Article number:7920371
Language:English
ISSN:10414347
CODEN:ITKEEH
Document type:Journal article (JA)
Publisher:IEEE Computer Society
Abstract:Spectral clustering has been playing a vital role in various research areas. Most traditional spectral clustering algorithms comprise two independent stages (e.g., first learning continuous labels and then rounding the learned labels into discrete ones), which may cause unpredictable deviation of resultant cluster labels from genuine ones, thereby leading to severe information loss and performance degradation. In this work, we study how to achieve discrete clustering as well as reliably generalize to unseen data. We propose a novel spectral clustering scheme which deeply explores cluster label properties, including discreteness, nonnegativity, and discrimination, as well as learns robust out-of-sample prediction functions. Specifically, we explicitly enforce a discrete transformation on the intermediate continuous labels, which leads to a tractable optimization problem with a discrete solution. Besides, we preserve the natural nonnegative characteristic of the clustering labels to enhance the interpretability of the results. Moreover, to further compensate the unreliability of the learned clustering labels, we integrate an adaptive robust module with ℓ 2,p loss to learn prediction function for grouping unseen data. We also show that the out-of-sample component can inject discriminative knowledge into the learning of cluster labels under certain conditions. Extensive experiments conducted on various data sets have demonstrated the superiority of our proposal as compared to several existing clustering approaches. 1989-2012 IEEE.
Number of references:52
Main heading:Clustering algorithms
Controlled terms:Optimization
Uncontrolled terms:Discrete optimization - Discrete transformation - Non negatives - Optimization problems - Performance degradation - Prediction function - Spectral clustering - Spectral clustering algorithms
Classification code:903.1 Information Sources and Analysis - 921.5 Optimization Techniques
DOI:10.1109/TKDE.2017.2701825
Funding details: Number: 61632007, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: ZYGX2015J055, Acronym: -, Sponsor: -;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Project 61572108, Project 61632007 and Project 61502081, the National Thousand-Young-Talents Program of China, and the Fundamental Research Funds for the Central Universities under Project ZYGX2014Z007 and Project ZYGX2015J055.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<192>
Accession number:20181204935834
Title:Multi-channel phase-sensitive amplification in nonlinear waveguides
Authors:Zhang, Y. (1); Reimer, C. (1); Wu, J. (1); Roztocki, P. (1); Wetzel, B. (1, 2); Little, B.E. (3); Chu, S.T. (4); Moss, D.J. (5); Kues, M. (1, 6); Morandotti, R. (1, 7)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) Department of Physics and Astronomy, University of Sussex, Falmer Brighton; BN1 9QH, United Kingdom; (3) State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Science, Xi'an, China; (4) City University of Hong Kong, Department of Physics and Material Science, Tat Chee Avenue, Hong Kong, Hong Kong; (5) Center for Micro-Photonics, Swinburne University of Technology, Hawthorne; VIC; 3122, Australia; (6) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (7) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Source title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Abbreviated source title:Conf. Lasers. Electr.-Opt., Proc.
Volume:2017-January
Part number:1 of 1
Issue title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Issue date:October 25, 2017
Publication year:2017
Pages:1-2
Language:English
ISBN-13:9781943580279
Document type:Conference article (CA)
Conference name:2017 Conference on Lasers and Electro-Optics, CLEO 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:131854
Sponsor:AdValue Photonics; American Elements - The Materials Science Company; Coherent; et al.; KMLabs - Leading in Ultrafast; MKS
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We demonstrate on-chip multi-channel phase-sensitive amplification in a nonlinear waveguide, achieving 5 dB net gain and 15 dB extinction ratio. We show the manipulation of individual channels in a multi-channel scheme through controlling the initial phases. 2017 IEEE.
Number of references:11
Main heading:Waveguides
Uncontrolled terms:Extinction ratios - Initial phasis - Multi channel - Net gain - Nonlinear waveguides - On chips
Classification code:714.3 Waveguides
Numerical data indexing:Decibel 1.50e+01dB, Decibel 5.00e+00dB
DOI:10.1364/CLEO_AT.2017.JTh2A.91
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<193>
Accession number:20182405306848
Title:Optical pulling nanoparticles with nonparaxial accelerating beams
Authors:Han, Guoxia (1, 2); Huang, Zhangxiang (1, 2); An, Sha (2); Peng, Tong (2); Wang, Meirong (3); Yao, Baoli (2); Zhang, Peng (2)
Author affiliation:(1) College of Science, China University of Petroleum (East China), Qingdao, Shandong; 266580, China; (2) State of Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, shaanxi; 710119, China; (3) Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education, Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an; 710129, China
Corresponding author:Yao, Baoli(yaobl@opt.ac.cn)
Source title:2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
Abbreviated source title:Opto-Electron. Commun. Conf., OECC Photonics Glob. Conf., PGC
Volume:2017-November
Part number:1 of 1
Issue title:2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
Issue date:November 17, 2017
Publication year:2017
Pages:1-2
Language:English
ISBN-13:9781509062935
Document type:Conference article (CA)
Conference name:2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
Conference date:July 31, 2017 - August 4, 2017
Conference location:Singapore, Singapore
Conference code:132616
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We propose and theoretically demonstrate the generation of optical traction of nanoparticles through nonparaxial accelerating beams. A convenient optical pulling and manipulating of nanoparticles along curved trajectory is achieved, and the method to determine the conditions of optical traction is also presented. 2017 IEEE.
Number of references:9
Main heading:Photonics
Controlled terms:Nanoparticles
Uncontrolled terms:Nonparaxial - Pulling force
Classification code:741.1 Light/Optics - 761 Nanotechnology - 933 Solid State Physics
DOI:10.1109/OECC.2017.8114892
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<194>
Accession number:20172203698736
Title:Online measurement of atmospheric density based on space vehicle platform
Authors:Wang, Chao-Jie (1, 2); Wang, Bo (3); Guo, Hui-Nan (4); Qin, Lai-An (5)
Author affiliation:(1) National University of Defense Technology, Changsha; 410073, China; (2) National Key Laboratory of Science and Technology on Nearspace Vehicle Technology, Beijing; 100076, China; (3) Beijing No. 8 High School, Beijing; 100033, China; (4) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (5) Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei; 230031, China
Corresponding author:Qin, Lai-An(qinlaian@163.com)
Source title:Guangxue Jingmi Gongcheng/Optics and Precision Engineering
Abbreviated source title:Guangxue Jingmi Gongcheng
Volume:25
Issue:1
Issue date:January 1, 2017
Publication year:2017
Pages:15-20
Language:Chinese
ISSN:1004924X
CODEN:GJGOF4
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences
Abstract:In view of the high-altitude atmospheric density fluctuation and the difficulty to identify aerodynamic characteristics of the aircraft in orbit, a technical solution for atmospheric density measurement by lidar based on Rayleigh scattering principle was proposed. The online data of atmospheric density at different distances was acquired through the analysis of the laser backscattering Rayleigh optical cylinder, which was captured by the Electron-Multiplying Charge Coupled Device (EMCCD) in the measuring flow field based on the principle that the density of gas molecules is in direct proportion to Rayleigh scattering intensity. Furthermore the atmospheric density online measuring instrument was developed and calibrated. Experimental and calibration results show that the online measurement precision of atmospheric density is controlled within 5%. The instrument has a promising application in optimization of spacecraft appearance and improvement of aerodynamic identification. 2017, Science Press. All right reserved.
Number of references:12
Main heading:Density of gases
Controlled terms:Aerodynamics - Atmospheric density - Charge coupled devices - Optical radar - Orbits - Rayleigh scattering - Spacecraft
Uncontrolled terms:Aerodynamic characteristics - Electron multiplying charge coupled devices - Laser backscattering - On-line measurement - Online measuring - Scattering intensity - Space vehicles - Technical solutions
Classification code:443.1 Atmospheric Properties - 651.1 Aerodynamics, General - 655.1 Spacecraft, General - 711 Electromagnetic Waves - 714.2 Semiconductor Devices and Integrated Circuits - 716.2 Radar Systems and Equipment - 931.2 Physical Properties of Gases, Liquids and Solids
Numerical data indexing:Percentage 5.00e+00%
DOI:10.3788/OPE.20172501.0015
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<195>
Accession number:20172703894842
Title:Robust Web Image Annotation via Exploring Multi-Facet and Structural Knowledge
Authors:Hu, Mengqiu (1); Yang, Yang (1); Shen, Fumin (1); Zhang, Luming (2); Shen, Heng Tao (1); Li, Xuelong (3)
Author affiliation:(1) Center for Future Media, School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu; 610051, China; (2) Department of CSIE, Hefei University of Technology, Hefei; 230009, China; (3) Center for OPTical IMagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Yang, Yang(dlyyang@gmail.com)
Source title:IEEE Transactions on Image Processing
Abbreviated source title:IEEE Trans Image Process
Volume:26
Issue:10
Issue date:October 2017
Publication year:2017
Pages:4871-4884
Article number:7953515
Language:English
ISSN:10577149
CODEN:IIPRE4
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Driven by the rapid development of Internet and digital technologies, we have witnessed the explosive growth of Web images in recent years. Seeing that labels can reflect the semantic contents of the images, automatic image annotation, which can further facilitate the procedure of image semantic indexing, retrieval, and other image management tasks, has become one of the most crucial research directions in multimedia. Most of the existing annotation methods, heavily rely on well-labeled training data (expensive to collect) and/or single view of visual features (insufficient representative power). In this paper, inspired by the promising advance of feature engineering (e.g., CNN feature and scale-invariant feature transform feature) and inexhaustible image data (associated with noisy and incomplete labels) on the Web, we propose an effective and robust scheme, termed robust multi-view semi-supervised learning (RMSL), for facilitating image annotation task. Specifically, we exploit both labeled images and unlabeled images to uncover the intrinsic data structural information. Meanwhile, to comprehensively describe an individual datum, we take advantage of the correlated and complemental information derived from multiple facets of image data (i.e., multiple views or features). We devise a robust pairwise constraint on outcomes of different views to achieve annotation consistency. Furthermore, we integrate a robust classifier learning component via ℓ
Number of references:74
Main heading:Image annotation
Controlled terms:Content based retrieval - Image analysis - Iterative methods - Learning algorithms - Semantics - Supervised learning
Uncontrolled terms:Labeled training data - Multi-view learning - Optimization problems - Scale invariant feature transforms - Semi- supervised learning - Structural information - Structural knowledge - Web image annotations
Classification code:921.6 Numerical Methods
DOI:10.1109/TIP.2017.2717185
Funding details: Number: 61632007, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61572108, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61502081, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: ZYGX2015J055, Acronym: -, Sponsor: -;Number: ZYGX2014Z007, Acronym: -, Sponsor: -;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Project 61572108, Project 61632007, and Project 61502081, in part by the National Thousand-Young-Talents Program of China, and in part by the Fundamental Research Funds for the Central Universities under Project ZYGX2014Z007 and Project ZYGX2015J055.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<196>
Accession number:20182205249292
Title:Sensorless control of three-phase permanent magnet synchronous motor based on fundamental wave mathematical model
Authors:Xing, Shi Chen (1); Chen, Wang (2)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Xi'an, China; (2) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Corresponding author:Xing, Shi Chen(494620933@qq.com)
Source title:Proceedings - 2017 2nd International Conference on Cybernetics, Robotics and Control, CRC 2017
Abbreviated source title:Proc. - Int. Conf. Cybern., Robot. Control, CRC
Volume:2018-January
Part number:1 of 1
Issue title:Proceedings - 2017 2nd International Conference on Cybernetics, Robotics and Control, CRC 2017
Issue date:July 2, 2017
Publication year:2017
Pages:89-93
Language:English
ISBN-13:9781538606773
Document type:Conference article (CA)
Conference name:2nd International Conference on Cybernetics, Robotics and Control, CRC 2017
Conference date:July 21, 2017 - July 23, 2017
Conference location:Chengdu, Sichuan, China
Conference code:135561
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In the case of vector control using magnetic field orientation, in order to achieve high performance three-phase PMSM (Permanent Magnet Synchronous Motor) control system, generally we need to obtain an accurate rotor position and speed information, but the use of mechanical sensors will increase the use of system cost, size and quality, and the use of the environment has a more stringent requirements. Sensorless control technology detects the motor winding and focusing on the relevant electrical signals and uses a certain control algorithm to achieve the rotor position and speed estimates. It represents the three-phase PMSM control system development trend. This paper focuses on the sensorless control of three-phase permanent magnet synchronous motor based on the fundamental wave mathematical model. This method relies on the rotational speed-related quantities (such as the generated back electromotive force) in the three-phase PMSM fundamental excitation mathematical model for rotor position and velocity. It is estimated that since the signal-to-noise ratio of the useful signal is low when the motor is running at zero speed and very low speed, it is usually difficult to extract. Thus, ultimately, dependence on the fundamental excitation ultimately results in failure of rotor position and velocity detection at zero speed and low speed. At present, the commonly used algorithms include sliding mode observer algorithm, model reference adaptive control algorithm and extended Kalman filter algorithm. In this paper, the sliding mode observer algorithm is analyzed and modeled. This paper firstly introduces the basic concept of sliding mode control, and then analyzes the commonly used traditional sliding mode observer algorithm and the sliding mode observer algorithm in synchronous rotating coordinate system. Secondly, the permanent magnet synchronous motor control system based on two algorithms is simulated in Matlab2016 / Simulink environment. The response curves of the two control system simulation models under the condition of external disturbance are analyzed.We can get a conclusion that by selecting the appropriate controller parameters, SMO (sliding mode observer)-based three-phase PMSM sensorless control technology can meet the needs of the actual motor control performance. 2017 IEEE.
Number of references:5
Main heading:Sensorless control
Controlled terms:AC motors - Control systems - Estimation - Kalman filters - Model reference adaptive control - Permanent magnets - Quality control - Robotics - Signal to noise ratio - Sliding mode control - Speed - Synchronous motors - Vector control (Electric machinery)
Uncontrolled terms:Back electromotive force - Co-ordinate system - Control system simulations - Extended Kalman filter algorithm - Magnetic field orientations - Permanent Magnet Synchronous Motor - Rotating coordinate system - Sliding mode observers
Classification code:704.1 Electric Components - 705.3.1 AC Motors - 716.1 Information Theory and Signal Processing - 731 Automatic Control Principles and Applications - 913.3 Quality Assurance and Control - 921 Mathematics
DOI:10.1109/CRC.2017.29
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<197>
Accession number:20182105211474
Title:Demonstration of Real-Time Modulation-Adaptable Transmitter
Authors:Yan, Shuangyi (1); Beldachi, Arash Farhadi (1); Qian, Fengchen (1, 2); Kondepu, Koteswararao (1); Yan, Yan (1); Jackson, Chris (1); Nejabati, Reza (1); Simeonidou, DImitra (1)
Author affiliation:(1) High Performance Networks Group, University of Bristol, United Kingdom; (2) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an, China
Source title:European Conference on Optical Communication, ECOC
Abbreviated source title:Eur Conf Opt Commun ECOC
Volume:2017-September
Part number:1 of 1
Issue title:43rd European Conference on Optical Communication, ECOC 2017
Issue date:July 2, 2017
Publication year:2017
Pages:1-3
Language:English
CODEN:85MOAV
ISBN-13:9781538656242
Document type:Conference article (CA)
Conference name:43rd European Conference on Optical Communication, ECOC 2017
Conference date:September 17, 2017 - September 21, 2017
Conference location:Gothenburg, Sweden
Conference code:136165
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We demonstrate a 26 Gbaud real-time quick-reconfigurable 16QAM/QPSK-adaptable transmitter. The modulation format can be switched in less than a second by an RMAT agent. The FPGA-driven reconfigurable transmitter can work as a generic edge-node interface for traffic aggregation. 2017 IEEE.
Number of references:4
Main heading:Optical communication
Controlled terms:Modulation - Transmitters
Uncontrolled terms:Edge nodes - Modulation formats - Real time - Reconfigurable - Reconfigurable transmitters - Traffic aggregation
Classification code:717.1 Optical Communication Systems
DOI:10.1109/ECOC.2017.8346029
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<198>
Accession number:20163002643529
Title:A Biologically Inspired Appearance Model for Robust Visual Tracking
Authors:Zhang, Shengping (1); Lan, Xiangyuan (2); Yao, Hongxun (1); Zhou, Huiyu (3); Tao, Dacheng (4); Li, Xuelong (5)
Author affiliation:(1) School of Computer Science and Technology, Harbin Institute of Technology, Weihai, China; (2) Department of Computer Science, Hong Kong Baptist University, Hong Kong, Hong Kong; (3) School of Electronics, Electrical Engineering and Computer Science, Queen's University Belfast, Belfast, United Kingdom; (4) Centre for Quantum Computation and Intelligent Systems, Faculty of Engineering and Information Technology, University of Technology, 81 Broadway Street Ultimo, Sydney; NSW, Australia; (5) Center for OPTical IMagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi, China
Corresponding author:Zhang, Shengping(s.zhang@hit.edu.cn)
Source title:IEEE Transactions on Neural Networks and Learning Systems
Abbreviated source title:IEEE Trans. Neural Networks Learn. Sys.
Volume:28
Issue:10
Issue date:October 2017
Publication year:2017
Pages:2357-2370
Article number:7516592
Language:English
ISSN:2162237X
E-ISSN:21622388
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In this paper, we propose a biologically inspired appearance model for robust visual tracking. Motivated in part by the success of the hierarchical organization of the primary visual cortex (area V1), we establish an architecture consisting of five layers: Whitening, rectification, normalization, coding, and pooling. The first three layers stem from the models developed for object recognition. In this paper, our attention focuses on the coding and pooling layers. In particular, we use a discriminative sparse coding method in the coding layer along with spatial pyramid representation in the pooling layer, which makes it easier to distinguish the target to be tracked from its background in the presence of appearance variations. An extensive experimental study shows that the proposed method has higher tracking accuracy than several state-of-the-art trackers. 2012 IEEE.
Number of references:75
Main heading:Codes (symbols)
Controlled terms:Object recognition
Uncontrolled terms:Appearance modeling - biologically inspiration - Biologically inspired - Hierarchical organizations - Primary visual cortex - Sparse coding - Tracking accuracy - Visual Tracking
Classification code:723.2 Data Processing and Image Processing
DOI:10.1109/TNNLS.2016.2586194
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<199>
Accession number:20174004234853
Title:HDPA: Hierarchical deep probability analysis for scene parsing
Authors:Yuan, Yuan (1); Jiang, Zhiyu (1, 2); Wangm, Qi (3)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (2) 2University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing; 100049, China; (3) School of Computer Science and Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China
Corresponding author:Wangm, Qi(crabwq@nwpu.edu.cn)
Source title:Proceedings - IEEE International Conference on Multimedia and Expo
Abbreviated source title:Proc. IEEE Int. Conf. Multimedia Expo
Volume:0
Part number:1 of 1
Issue title:2017 IEEE International Conference on Multimedia and Expo, ICME 2017
Issue date:August 28, 2017
Publication year:2017
Pages:313-318
Article number:8019367
Language:English
ISSN:19457871
E-ISSN:1945788X
ISBN-13:9781509060672
Document type:Conference article (CA)
Conference name:2017 IEEE International Conference on Multimedia and Expo, ICME 2017
Conference date:July 10, 2017 - July 14, 2017
Conference location:Hong Kong, Hong kong
Conference code:130293
Publisher:IEEE Computer Society
Abstract:Scene parsing is an important task in computer vision and many issues still need to be solved. One problem is about the non-unified framework for predicting things and stuff and the other one refers to the inadequate description of contextual information. In this paper, we address these issues by proposing a Hierarchical Deep Probability Analysis(HDPA) method which particularly exploits the power of probabilistic graphical model and deep convolutional neural network on pixel-level scene parsing. To be specific, an input image is initially segmented and represented through a CNN framework under Gaussian pyramid. Then the graphical models are built under each scale and the labels are ultimately predicted by structural analysis. Three contributions are claimed: unified framework for scene labeling, hierarchical probabilistic graphical modeling and adequate contextual information consideration. Experiments on three benchmarks show that the proposed method outperforms the state-of-the-arts in scene parsing. 2017 IEEE.
Number of references:31
Main heading:Formal languages
Controlled terms:Computer vision - Deep neural networks - Graphic methods - Image segmentation - Neural networks - Semantics - Speech recognition
Uncontrolled terms:Contextual information - Deep convolutional neural networks - Gaussian pyramids - Probabilistic graphical models - Probability analysis - Scene parsing - Semantic segmentation - Unified framework
Classification code:721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 723.5 Computer Applications - 751.5 Speech
DOI:10.1109/ICME.2017.8019367
Funding details: Number: 2013CB336500, Acronym: -, Sponsor: -;Number: 61379094, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 60632018, Acronym: -, Sponsor: -;Number: 61232010, Acronym: -, Sponsor: -;
Funding text:?Qi Wang is the corresponding author of this paper. This work is supported by the National Basic Research Program of China (Youth 973 Program) (Grant No. 2013CB336500), the State Key Program of National Natural Science of China (Grant No. 60632018, 61232010), and the National Science Foundation of China(Grandt No. 61379094).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<200>
Accession number:20183705812406
Title:Analysis and test study of thermal deformation on a grid reinforced CFRP mirror
Authors:Xu, Liang (1); Ding, Jiao-Teng (1); Wang, Yong-Jie (1); Xie, Yong-Jie (1); Ma, Zhen (1); Fan, Xue-Wu (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:ICCM International Conferences on Composite Materials
Abbreviated source title:ICCM Int. Conf. Compos. Mater.
Volume:2017-August
Part number:1 of 1
Issue title:21st International Conference on Composite Materials, ICCM 2017
Issue date:2017
Publication year:2017
Language:English
Document type:Conference article (CA)
Conference name:21st International Conference on Composite Materials, ICCM 2017
Conference date:August 20, 2017 - August 25, 2017
Conference location:Xi'an, China
Conference code:138793
Publisher:International Committee on Composite Materials
Abstract:Due to the low density and extremely low thermal expansion, carbon fibre reinforced plastic (CFRP) is one of potential materials applied as precise dimension components. High precise structures, such as antenna reflectors and mirrors, require very strict thermal stability. However, the CFRP laminate usually companied with large thermal deformation, because of align error, thickness error, fiber and resin uneven distribution in the preparation. Therefore, a novel grid reinforced structure was adopted to improve stiffness and resistance of thermal deformation. The validity of the design is verified by finite element method. The thermal deformation test based on the vacuum tank verifies the reliability of the finite element analysis results. For 150mm CFRP mirror, the test results show that the thermal deformation RMS is only 16nm when 4.5 raised, so thermal stability is just about 3.5nm/, and satisfied the requirements in high precise structure application. 2017 International Committee on Composite Materials. All rights reserved.
Number of references:12
Funding details: Number: 51402351, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This paper has been supported by the National Science Foundation of China under Grant No.51402351
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<201>
Accession number:20175104550041
Title:Bidirectional adaptive feature fusion for remote sensing scene classification
Authors:Ji, Weijun (1, 2); Li, Xuelong (1); Lu, Xiaoqiang (1)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing; 100049, China
Corresponding author:Lu, Xiaoqiang(luxiaoqiang@opt.ac.cn)
Source title:Communications in Computer and Information Science
Abbreviated source title:Commun. Comput. Info. Sci.
Volume:772
Part number:2 of 3
Issue title:Computer Vision - 2nd CCF Chinese Conference, CCCV 2017, Proceedings
Issue date:2017
Publication year:2017
Pages:486-497
Language:English
ISSN:18650929
ISBN-13:9789811073014
Document type:Conference article (CA)
Conference name:2nd Chinese Conference on Computer Vision, CCCV 2017
Conference date:October 11, 2017 - October 14, 2017
Conference location:Tianjin, China
Conference code:208009
Publisher:Springer Verlag
Abstract:Convolutional neural networks (CNN) have been excellent for scene classification in nature scene. However, directly using the pre-trained deep models on the aerial image is not proper, because of the spatial scale variability and rotation variability of the HSR remote sensing images. In this paper, a bidirectional adaptive feature fusion strategy is investigated to deal with the remote sensing scene classification. The deep learning feature and the SIFT feature are fused together to get a discriminative image presentation. The fused feature can not only describe the scenes effectively by employing deep learning feature but also overcome the scale and rotation variability with the usage of the SIFT feature. By fusing both SIFT feature and global CNN feature, our method achieves state-of-the-art scene classification performance on the UCM and the AID datasets. Springer Nature Singapore Pte Ltd. 2017.
Number of references:26
Main heading:Classification (of information)
Controlled terms:Antennas - Computer vision - Deep learning - Neural networks - Remote sensing
Uncontrolled terms:Adaptive features - Convolutional Neural Networks (CNN) - Feature fusion - Image presentations - Remote sensing images - Scale and rotation - Scene classification - Spatial-scale variability
Classification code:716.1 Information Theory and Signal Processing - 723.5 Computer Applications
DOI:10.1007/978-981-10-7302-1_40
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<202>
Accession number:20174104242953
Title:Parameter free large margin nearest neighbor for distance metric learning
Authors:Song, Kun (1); Nie, Feiping (2); Han, Junwei (1); Li, Xuelong (3)
Author affiliation:(1) School of Automation, Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China; (2) School of Computer Science, Center for OPTIMAL, Northwestern Polytechnical University, Xi'an; 710072, China; (3) Center for OPTIMAL, State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Nie, Feiping(feipingnie@gmail.com)
Source title:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Abbreviated source title:AAAI Conf. Artif. Intell., AAAI
Part number:1 of 1
Issue title:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Issue date:2017
Publication year:2017
Pages:2555-2561
Language:English
Document type:Conference article (CA)
Conference name:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Conference date:February 4, 2017 - February 10, 2017
Conference location:San Francisco, CA, United states
Conference code:130407
Sponsor:Amazon; Artificial Intelligence; Baidu; et al.; IBM; Tencent
Publisher:AAAI press
Abstract:We introduce a novel supervised metric learning algorithm named parameter free large margin nearest neighbor (PFLMNN) which can be seen as an improvement of the classical large margin nearest neighbor (LMNN) algorithm. The contributions of our work consist of two aspects. First, our method discards the cost term which shrinks the distances between inquiry input and its k target neighbors (the k nearest neighbors with same labels as inquiry input) in LMNN, and only focuses on improving the action to push the imposters (the samples with different labels form the inquiry input) apart out of the neighborhood of inquiry. As a result, our method does not have the parameter needed to tune on the validating set, which makes it more convenient to use. Second, by leveraging the geometry information of the imposters, we construct a novel cost function to penalize the small distances between each inquiry and its imposters. Different from LMNN considering every imposter located in the neighborhood of each inquiry, our method only takes care of the nearest imposters. Because when the nearest imposter is pushed out of the neighborhood of its inquiry, other imposters would be all out. In this way, the constraints in our model are much less than that of LMNN, which makes our method much easier to find the optimal distance metric. Consequently, our method not only learns a better distance metric than LMNN, but also runs faster than LMNN. Extensive experiments on different data sets with various sizes and difficulties are conducted, and the results have shown that, compared with LMNN, PFLMNN achieves better classification results.
Copyright ？ 2017, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved.
Number of references:26
Main heading:Learning algorithms
Controlled terms:Artificial intelligence - Classification (of information) - Cost functions - Nearest neighbor search
Uncontrolled terms:Classification results - Distance Metric Learning - Distance metrics - Geometry information - K-nearest neighbors - Large margin nearest neighbors
Classification code:716.1 Information Theory and Signal Processing - 723.4 Artificial Intelligence - 921.5 Optimization Techniques
Funding details: Number: 61473231, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61522207, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Science Foundation of China under Grant 61473231 and Grant 61522207.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<203>
Accession number:20175004542616
Title:Thermal characteristics of kW-level conduction-cooled semiconductor laser array
Authors:Zhu, Qiwen (1, 2); Zhang, Pu (1); Wu, Dihai (1); Nie, Zhiqiang (1); Xiong, Lingling (1); Liu, Xingsheng (1, 3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Focuslight Technologies Co., LTD, Xi'an; 710119, China
Source title:Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Abbreviated source title:Hongwai yu Jiguang Gongcheng Infrared Laser Eng.
Volume:46
Issue:10
Issue date:October 25, 2017
Publication year:2017
Article number:1005003
Language:Chinese
ISSN:10072276
Document type:Journal article (JA)
Publisher:Chinese Society of Astronautics
Abstract:With the increase in output power of high power semiconductor lasers(HPSLs), thermal management is one of the critical bottlenecks affecting the optical-electrical performance and reliability of HPSLs. Thermal characteristics of a kW-level conduction cooled semiconductor laser array were analyzed based on numerical simulations and experiments. Firstly, transient thermal behavior was studied using finite element method (FEM). There is significant "thermal crosstalk" behavior among the semiconductor laser bars with pulse width greater than 250 μs. It shows thermal resistances along horizontal and vertical directions are 64.7% and 35.3%, respectively, indicating that heat mainly dissipates along horizontal direction. 74.9% of thermal resistance along horizontal direction and 66.5% of thermal resistance along vertical direction origin from CuW layer, which shows that CuW is the most significant factor affecting the efficiency of thermal dissipation. Based on accumulated average temperature method, the simulated temperature differences are 2.13, 1.47, 0.75℃ at the repetition frequencies of 20, 30 and 40 Hz compared with that at the frequency of 50 Hz. Average junction temperature rises at different repetition frequency have been measured using spectral method, and the temperature differences at the repetition frequencies of 20, 30 and 40 Hz are 2.33, 1.56, 0.78℃, respectively. The average error is less than 6.85% between experiment results and numerical simulation. It shows that the simulated transient thermal resistance is coincident with the experimental result. 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
Number of references:12
Main heading:Semiconductor lasers
Controlled terms:Binary alloys - Copper alloys - Finite element method - Heat resistance - High power lasers - Numerical models
Uncontrolled terms:Conduction cooled - Electrical performance - High power semiconductor laser - Junction temperatures - KW-level - Semiconductor laser arrays - Temperature differences - Thermal characteristics
Classification code:544.2 Copper Alloys - 744.1 Lasers, General - 744.4.1 Semiconductor Lasers - 921 Mathematics - 921.6 Numerical Methods
Numerical data indexing:Frequency 3.00e+01Hz, Frequency 4.00e+01Hz, Frequency 5.00e+01Hz, Percentage 3.53e+01%, Percentage 6.47e+01%, Percentage 6.65e+01%, Percentage 6.85e+00%, Percentage 7.49e+01%, Time 2.50e-04s
DOI:10.3788/IRLA201746.1005003
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<204>
Accession number:20170603336371
Title:A novel ZVS high voltage power supply for micro-channel plate photomultiplier tubes
Authors:Pei, Chengquan (1); Tian, Jinshou (2); Liu, Zhen (1); Qin, Hong (3); Wu, Shengli (1)
Author affiliation:(1) Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an; 710049, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) School of Computer Science and Technology, Xi'an University of Science and Technology, Xi'an; 710054, China
Corresponding author:Wu, Shengli(slwu@mail.xjtu.edu.cn)
Source title:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Abbreviated source title:Nucl Instrum Methods Phys Res Sect A
Volume:851
Issue date:April 11, 2017
Publication year:2017
Pages:43-49
Language:English
ISSN:01689002
CODEN:NIMAER
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:A novel resonant high voltage power supply (HVPS) with zero voltage switching (ZVS), to reduce the voltage stress on switching devices and improve conversion efficiency, is proposed. The proposed HVPS includes a drive circuit, a transformer, several voltage multiplying circuits, and a regulator circuit. The HVPS contains several secondary windings that can be precisely regulated. The proposed HVPS performed better than the traditional resistor voltage divider, which requires replacing matching resistors resulting in resistor dispersibility in the Micro-Channel Plate (MCP). The equivalent circuit of the proposed HVPS was established and the operational principle analyzed. The entire switching element can achieve ZVS, which was validated by a simulation and experiments. The properties of this HVPS were tested including minimum power loss (240 mW), maximum power loss (1 W) and conversion efficiency (85%). The results of this research are that the proposed HVPS was suitable for driving the micro-channel plate photomultiplier tube (MCP-PMT). It was therefore adopted to test the MCP-PMT, which will be used in Daya Bay reactor neutrino experiment II in China. 2017 Elsevier B.V.
Number of references:16
Main heading:Image storage tubes
Controlled terms:Barium compounds - Conversion efficiency - Efficiency - Electric network analysis - Equivalent circuits - Multiplying circuits - Photomultipliers - Resistors - Voltage dividers - Zero voltage switching
Uncontrolled terms:High voltage power supply - Micro channel plate - Micro-channel plate photomultiplier tubes - Neutrino experiments - Operational principles - Push pull - Resonant converters - Switching elements
Classification code:525.5 Energy Conversion Issues - 703.1.1 Electric Network Analysis - 704.2 Electric Equipment - 714.1 Electron Tubes - 721.3 Computer Circuits - 913.1 Production Engineering
Numerical data indexing:Percentage 8.50e+01%
DOI:10.1016/j.nima.2017.01.044
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<205>
Accession number:20181204933222
Title:An ultra-narrow spectral width passively mode-locked laser
Authors:Kues, Michael (1, 2); Reimer, Christian (1); Wetzel, Benjamin (1, 3); Roztocki, Piotr (1); Little, Brent E. (4); Chu, Sai T. (5); Hansson, Tobias (1); Viktorov, Evgeny A. (6); Moss, David J. (1, 7); Morandotti, Roberto (1)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) School of Mathematical and Physical Sciences, University of Sussex, Sussex House, Falmer, Brighton; BN1 9RH, United Kingdom; (4) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China; (5) City University of Hong Kong, Department of Physics and Materials Science, Tat Chee Avenue, Hong Kong; (6) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (7) Center for Micro-Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia
Corresponding author:Kues, Michael(michael.kues@emt.inrs.ca)
Source title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Abbreviated source title:Conf. Lasers. Electr.-Opt., Proc.
Volume:2017-January
Part number:1 of 1
Issue title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Issue date:October 25, 2017
Publication year:2017
Pages:1-2
Language:English
ISBN-13:9781943580279
Document type:Conference article (CA)
Conference name:2017 Conference on Lasers and Electro-Optics, CLEO 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:131854
Sponsor:AdValue Photonics; American Elements - The Materials Science Company; Coherent; et al.; KMLabs - Leading in Ultrafast; MKS
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We demonstrate a passively mode-locked laser emitting 4.3 nanosecond Fourier-limited pulses with a record low spectral bandwidth of 104.9 MHz (more than 100 times narrower than previous realizations), allowing its full characterization in the radio-frequency domain. 2017 IEEE.
Number of references:12
Main heading:Mode-locked fiber lasers
Controlled terms:Fourier series - Frequency domain analysis - Lasers - Passive mode locking
Uncontrolled terms:Fourier - Passively mode-locked lasers - Radio frequency domains - Spectral bandwidth - Spectral widths - Ultra narrows
Classification code:744.1 Lasers, General - 921.3 Mathematical Transformations
Numerical data indexing:Frequency 1.05e+08Hz, Time 4.30e-09s
DOI:10.1364/CLEO_AT.2017.FW4D.2
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<206>
Accession number:20173104012450
Title:Improved multiple circular array configuration for sparse aperture optical imaging systems
Authors:Liu, Aimin (1, 2); Gao, Limin (1); Xiao, Maosen (1)
Author affiliation:(1) Chinese Academy of Sciences, Xi'An Institute of Optics and Precision Mechanics, Xi'an, China; (2) University of Chinese Academy of Science, Beijing, China
Corresponding author:Liu, Aimin(liuaimin1232003@163.com)
Source title:Optical Engineering
Abbreviated source title:Opt Eng
Volume:56
Issue:7
Issue date:July 1, 2017
Publication year:2017
Article number:073109
Language:English
ISSN:00913286
E-ISSN:15602303
CODEN:OPEGAR
Document type:Journal article (JA)
Publisher:SPIE
Abstract:An improved multiple circular array (MCA) configuration is proposed for sparse aperture (SA) optical imaging systems. Using genetic algorithms, the practical cutoff frequency (PCOF), based on the modulation transfer function for the array, is selected as the fitness function. Moreover, the parameters, such as diameters of aperture sets, spacing between the aperture sets, and relative rotation angles between aperture sets on different concentric circles, are calculated. Improved MCA configurations, with aperture numbers of 6, 9, 12, 10, 15, 11, and 13, are given. Golay arrays, MCAs, a single annular aperture, and improved arrays with the same fill factor are compared. The results show that the improved array has highest PCOF of all the SA arrays, smoother coverage in Fourier space, and better midfrequency contrast than MCAs. Consequently, the improved array is a promising aperture configuration that can approximate a single annular aperture. 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).
Number of references:14
Main heading:Cutoff frequency
Controlled terms:Genetic algorithms - Imaging systems - Optical image storage
Uncontrolled terms:Annular apertures - Circular arrays - Concentric circles - Fitness functions - Mid-frequency - Optical imaging system - Relative rotation - Sparse aperture
Classification code:722.1 Data Storage, Equipment and Techniques - 746 Imaging Techniques
DOI:10.1117/1.OE.56.7.073109
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<207>
Accession number:20174104243241
Title:Multi-view clustering and semi-supervised classification with adaptive neighbours
Authors:Nie, Feiping (1); Cai, Guohao (1); Li, Xuelong (2)
Author affiliation:(1) School of Computer Science and Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Source title:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Abbreviated source title:AAAI Conf. Artif. Intell., AAAI
Part number:1 of 1
Issue title:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Issue date:2017
Publication year:2017
Pages:2408-2414
Language:English
Document type:Conference article (CA)
Conference name:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Conference date:February 4, 2017 - February 10, 2017
Conference location:San Francisco, CA, United states
Conference code:130407
Sponsor:Amazon; Artificial Intelligence; Baidu; et al.; IBM; Tencent
Publisher:AAAI press
Abstract:Due to the efficiency of learning relationships and complex structures hidden in data, graph-oriented methods have been widely investigated and achieve promising performance in multi-view learning. Generally, these learning algorithms construct informative graph for each view or fuse different views to one graph, on which the following procedure are based. However, in many real world dataset, original data always contain noise and outlying entries that result in unreliable and inaccurate graphs, which cannot be ameliorated in the previous methods. In this paper, we propose a novel multi-view learning model which performs clustering/semi-supervised classification and local structure learning simultaneously. The obtained optimal graph can be partitioned into specific clusters directly. Moreover, our model can allocate ideal weight for each view automatically without additional weight and penalty parameters. An efficient algorithm is proposed to optimize this model. Extensive experimental results on different real-world datasets show that the proposed model outperforms other state-of-the-art multi-view algorithms. Copyright 2017, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved.
Number of references:26
Main heading:Learning algorithms
Controlled terms:Artificial intelligence - Supervised learning
Uncontrolled terms:Complex structure - Local structure - Multi-view clustering - Multi-view learning - Penalty parameters - Real-world datasets - Semi-supervised classification - State of the art
Classification code:723.4 Artificial Intelligence
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<208>
Accession number:20170603337865
Title:Visible and near-infrared waveguides formed by double-energy proton implantation in magneto-optical glasses
Authors:Liu, Chun-Xiao (1); Shen, Xiao-Liang (1); Zheng, Rui-Lin (1); Guo, Hai-Tao (2); Li, Wei-Nan (2); Wei, Wei (1)
Author affiliation:(1) School of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing; 210023, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi′an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi′an; 710119, China
Corresponding author:Liu, Chun-Xiao(cxliu0816@sina.com)
Source title:Applied Physics B: Lasers and Optics
Abbreviated source title:Appl Phys B
Volume:123
Issue:2
Issue date:February 1, 2017
Publication year:2017
Article number:56
Language:English
ISSN:09462171
CODEN:APBOEM
Document type:Journal article (JA)
Publisher:Springer Verlag
Abstract:Ion implantation is one of the most competitive methods for the fabrication of optical waveguide structures in optoelectronic materials. Tb3+-doped aluminum borosilicate glass has been demonstrated to be a type of magneto-optical glass with high Verdet constant. In this work, the proton implantation technique with energies of (500 + 550) keV and fluences of (1.0 + 2.0) × 1016ions/cm2is performed to form planar waveguides in the Tb3+-doped aluminum borosilicate glass. The guiding modes of the fabricated waveguide were measured by the prism-coupling method at wavelengths of 632.8 and 1539 nm. The near-field light intensity distribution was measured by the end-face coupling method at the wavelength of 632.8 nm and calculated by the finite-difference beam propagation method at both 632.8 and 1539 nm. The optical properties of the double-energy proton-implanted magneto-optical glass waveguides show promise for use as multi-functional integrated optical devices in the visible and near-infrared bands. 2017, Springer-Verlag Berlin Heidelberg.
Number of references:23
Main heading:Borosilicate glass
Controlled terms:Aluminum compounds - Beam propagation method - Infrared devices - Ion implantation - Optical glass - Optical properties - Optical waveguides - Optoelectronic devices
Uncontrolled terms:Finite difference beam propagation method - Glass waveguides - Integrated optical devices - Opto-electronic materials - Prism coupling method - Proton implantation technique - Visible and near infrared - Waveguide structure
Classification code:711 Electromagnetic Waves - 741 Light, Optics and Optical Devices - 812.3 Glass - 921 Mathematics
DOI:10.1007/s00340-017-6644-8
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<209>
Accession number:20172203711701
Title:Comparative Study of Data Compression Methods for Large Aperture Static Imaging Spectrometer
Authors:Yu, Lu (1, 2, 3); Liu, Xue-Bin (1); Li, Hong-Bo (1, 3); Liu, Gui-Zhong (2)
Author affiliation:(1) Laboratory of Spectral Imaging Technique, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Liu, Xue-Bin(lxb@opt.ac.cn)
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:37
Issue:3
Issue date:March 1, 2017
Publication year:2017
Pages:939-945
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press
Abstract:Facing the problem of choosing different data source as compressing object results in different compression effect, several techniques are investigated to explore a better data source which can reduce the loss of image and spectral information while getting higher compression ratio in the compression work of the large aperture static imaging spectrometer. In this paper the optical path difference dimension data source of LASIS was proposed after analyzing the characteristic of LASIS and then compared with the LASIS and LAMIS data source in detail. The SWIR data collected with the principle prototype of LASIS were used in our experiment. Firstly, three forms of data sources were extracted after detailedly introducing their data characteristic and extracting methods. Secondly, the mature algorithms in engineering JPEG and JPEG2000 were employed to compress and reconstruct the three forms of data sources respectively. Finally, the compression effect was evaluated in the aspect of image content, interference dimension, spectral dimension and compression ratio respectively, and the original spectral curves of three materials choosing from the field of view and those after reconstruction were extracted next, then the loss of spectral information of these three materials were measured by using the SA (Spectral Angle) and RQE (Relative Quadratic Error) values of the spectral curves to evaluate the compression effect. It is demonstrated that using the optical path difference dimension data as compressing object shows obvious advantages compared with LASIS and LAMIS, which achieves a combination of higher compression ratio, lower mean square error, lower peak signal noise ratio and less information loss that is competitive with the best results from the literature. The results show that the proposed optical path difference dimension data source has good performance in preserving the spatial and spectral information during the compression of LASIS than the other two common forms data sources of LASIS. 2017, Peking University Press. All right reserved.
Number of references:9
Main heading:Data compression ratio
Controlled terms:Aspect ratio - Compaction - Data compression - Image compression - Mean square error - Spectrometers
Uncontrolled terms:Compression effects - Data characteristics - Data-source - Higher compression ratios - LASIS - Optical path difference - Peak signal noise ratio - Spectral information
Classification code:741.3 Optical Devices and Systems - 922.2 Mathematical Statistics
DOI:10.3964/j.issn.1000-0593(2017)03-0939-07
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<210>
Accession number:20171603575285
Title:All polarization-maintaining fiber amplification system to generate high-power and high-quality femtosecond laser pulses
Authors:Wen, Liang (1); Liu, Bowen (1); Song, Huanyu (1); Hu, Minglie (1); Song, Youjian (1); Chai, Lu (1); Zhu, Zhe (2); Wang, Qingyue (1)
Author affiliation:(1) Ultrafast Laser Laboratory, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin; 300072, China; (2) Lasfiberio Co., Ltd, Xi'an; Shaanxi; 710119, China
Corresponding author:Liu, Bowen(bwliu@tju.edu.cn)
Source title:Zhongguo Jiguang/Chinese Journal of Lasers
Abbreviated source title:Zhongguo Jiguang
Volume:44
Issue:2
Issue date:February 10, 2017
Publication year:2017
Article number:0201011
Language:Chinese
ISSN:02587025
CODEN:ZHJIDO
Document type:Journal article (JA)
Publisher:Science Press
Abstract:An all polarization-maintaining fiber femtosecond laser amplification system, using Yb-doped large-mode-area double-cladding fiber (LMA-DCF) as gain medium and adopting the chirped pulse amplification technology, was constructed. Benefiting from the all polarization-maintaining fiber construction, the amplification system showed high-integration and long-term stability. Furthermore, the quality and duration of the pulses after compression were optimized by controlling the length of the stretcher fiber, which made it possible to compensate the third-order-dispersion accumulated in the system by introducing nonlinear chirp in the amplifier. Meanwhile, we analyzed the impact on amplified pulses caused by periodic spectral modulation. Through optimizing artisan craftsmanship of polarization-maintaining fiber (2+1)×1 combiner, the issue of periodic spectral modulation was solved. Finally, the high-quality ultrashort laser pulses with an average power of 9 W and a pulse duration of 260 fs at the repetition rate of 111 MHz after compression, corresponding to single pulse energy up to 81 nJ and pulse polarization ratio of 13 dB, were generated. 2017, Chinese Lasers Press. All right reserved.
Number of references:18
Page count:7
Main heading:Polarization-maintaining fiber
Controlled terms:Chirp modulation - Cladding (coating) - Femtosecond lasers - Fiber amplifiers - Fiber lasers - Fibers - Laser optics - Light polarization - Pulse repetition rate - Q switched lasers - Spectroscopy - Ultrashort pulses
Uncontrolled terms:Chirped pulse amplifications - Double cladding fiber - Femtosecond fiber lasers - Laser amplification - Long term stability - Single pulse energy - Spectral modulation - Third order dispersion
Classification code:716 Telecommunication; Radar, Radio and Television - 741.1 Light/Optics - 741.1.2 Fiber Optics - 744.1 Lasers, General - 744.4 Solid State Lasers
Numerical data indexing:Decibel 1.30e+01dB, Energy 8.10e-08J, Frequency 1.11e+08Hz, Power 9.00e+00W, Time 2.60e-13s
DOI:10.3788/CJL201744.0201011
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<211>
Accession number:20174204273986
Title:Projected clustering via robust orthogonal least square regression with optimal scaling
Authors:Zhang, Rui (1); Nie, Feiping (1); Li, Xuelong (2)
Author affiliation:(1) School of Computer Science, Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Source title:Proceedings of the International Joint Conference on Neural Networks
Abbreviated source title:Proc Int Jt Conf Neural Networks
Volume:2017-May
Part number:1 of 1
Issue title:2017 International Joint Conference on Neural Networks, IJCNN 2017 - Proceedings
Issue date:June 30, 2017
Publication year:2017
Pages:2784-2791
Article number:7966199
Language:English
CODEN:85OFAE
ISBN-13:9781509061815
Document type:Conference article (CA)
Conference name:2017 International Joint Conference on Neural Networks, IJCNN 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:Anchorage, AK, United states
Conference code:128847
Sponsor:Brain-Mind Institute (BMI); Budapest Semester in Cognitive Science (BSCS); Intel
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:The orthogonal least square regression (OLSR) serves as a pretty significant problem for the dimensionality reduction. Due to lack of the scale change in OLSR, the scaling term is at first introduced to OLSR to build up a novel orthogonal least square regression with optimal scaling (OLSR-OS) problem. However, OLSR-OS is still sensitive to the outliers, such that associated results could be fallacious. To strengthen the robustness of OLSR-OS, we propose an original robust OLSR-OS (ROLSR-OS) problem in ℓ
Number of references:21
Main heading:Regression analysis
Controlled terms:Statistics
Uncontrolled terms:Convergence analysis - Dimensionality reduction - Orthogonal least squares - Projected clustering - Self-Adaptive
Classification code:922.2 Mathematical Statistics
DOI:10.1109/IJCNN.2017.7966199
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<212>
Accession number:20180104612208
Title:A passively mode-locked nanosecond laser with an ultra-narrow spectral width
Authors:Kues, Michael (1, 2); Reimer, Christian (1); Wetzel, Benjamin (1, 3); Roztocki, Piotr (1); Little, Brent E. (4); Chu, Sai T. (5); Hansson, Tobias (1); Viktorov, Evgeny A. (6); Moss, David J. (1, 7); Morandotti, Roberto (1)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) School of Mathematical and Physical Sciences, University of Sussex, Sussex House, Falmer, Brighton; BN1 9RH, United Kingdom; (4) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China; (5) City University of Hong Kong, Department of Physics and Materials Science, Tat Chee Avenue, Hong Kong; (6) National Research University of Information Technologies Mechanics and Optics, St. Petersburg, Russia; (7) Center for Micro-Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia
Corresponding author:Kues, Michael(michael.kues@emt.inrs.ca)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F82-CLEO_Europe 2017
Part number:1 of 1
Issue title:The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
Conference date:June 25, 2017 - June 29, 2017
Conference location:Munich, Germany
Conference code:139018
Publisher:OSA - The Optical Society
Number of references:3
Page count:1
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<213>
Accession number:20180404671056
Title:A star pattern identification algorithm based on wheel code feature
Authors:Shao, Yuancheng (1, 2); Gao, Wei (1); Song, Zongxi (1); Wei, Xin (1, 2)
Author affiliation:(1) Space Optics Laboratory, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104625C
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Pyramid algorithm and grid algorithm are typical algorithms for all-sky autonomous star identification, and it has advantages of high recognition rate, and fast in running. However their recognition rate decreases rapidly when the position noise, lost stars or fake stars exist in the star image. In order to improve the performance of star sensor, a new star identification algorithm based on star pattern of wheel code is proposed. The algorithm combines the main star and its surrounding neighbor stars to form the characteristic unit, and then constructs the corresponding code feature and the wheel feature respectively. In the process of star matching, the algorithm uses the code feature of the observation star as an index to Inquire storage address of the candidate navigation star, and then calculates the similarity of wheel feature between the candidate navigation star and the observation. Simulation shows that: compared to the grid algorithm, this algorithm has higher rate of correct star recognition and better robustness. When the position error is 1 pixel and 2 lost stars exist in star image, this algorithm can reach 98.4% on identification rate, while the grid algorithm is 94.6%, and the pyramid algorithm is 83.5%; when the position error is 1 pixel and 2 fake stars exist in star image, this algorithm can reach 98.6% on identification rate, while the grid algorithm is 92.3%, and the pyramid algorithm is 87.2%. 2017 SPIE.
Number of references:17
Main heading:Stars
Controlled terms:Codes (symbols) - Pixels - Wheels
Uncontrolled terms:Identification rates - Pyramid algorithms - Recognition rates - Star identification - Star pattern identification - Star recognition - Star sensors - Star-pattern
Classification code:601.2 Machine Components - 657.2 Extraterrestrial Physics and Stellar Phenomena - 723.2 Data Processing and Image Processing
Numerical data indexing:Percentage 8.72e+01%, Percentage 9.23e+01%, Percentage 9.46e+01%, Percentage 9.84e+01%, Percentage 9.86e+01%
DOI:10.1117/12.2285784
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<214>
Accession number:20180404664652
Title:Effect of Two-color Laser Wavelength on Intense Terahertz Generation
Authors:Chen, Ze-You (1, 2); Fan, Wen-Hui (1); Chen, Xu (1, 2); Ding, Ling (1, 2); Song, Chao (1, 2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Fan, Wen-Hui(fanwh@opt.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:12
Issue date:December 2017
Publication year:2017
Article number:1214003
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:The effect of the two-color laser wavelength on intense terahertz generation was studied based on the transient photocurrent model. Theoretical calculation proves that the terahertz signal will increase with the increase of laser wavelength, and this trend will not vary with the variation of the pulse intensity, the pulse duration, the laser phase and the intensity ratio of the two-color laser. The distribution of terahertz spectrum will not change with the variation of the laser wavelength. Furthermore, the influence of laser wavelength on terahertz generation is analyzed, and the physical mechanism of this effect is explained by the free electron density and the drift current density. 2017, Science Press. All right reserved.
Number of references:19
Main heading:Terahertz waves
Controlled terms:Color - Electrons - Plasmas
Uncontrolled terms:Drift currents - Free electron - Free-electron density - Laser wavelength - Physical mechanism - Terahertz generation - Theoretical calculations - Transient photocurrents
Classification code:711 Electromagnetic Waves - 741.1 Light/Optics - 932.3 Plasma Physics
DOI:10.3788/gzxb20174612.1214003
Funding details: Number: 61675230, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: J08-029, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: YYYJ-1123-4, Acronym: CAS, Sponsor: Chinese Academy of Sciences;
Funding text:The National Natural Science Foundation (No. 61675230), the Hundreds of Talents Programs' of the Chinese Academy of Sciences (No. J08-029), and the Innovative Project of the Chinese Academy of Sciences (No. YYYJ-1123-4).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<215>
Accession number:20171903639625
Title:Design, fabrication, and optical gain performance of the gain-guided and index-antiguided Nd3+-doped phosphate glass fiber (Open Access)
Authors:Shen, Xiao (1, 2); Zhang, Liaolin (1); Ding, Jianyong (3); Wei, Wei (1)
Author affiliation:(1) College of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing; 210023, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian; 710119, China; (3) Nanjing Institute of Advanced Laser Technology, Nanjing, Jiangsu; 210038, China
Corresponding author:Wei, Wei(weiwei@njupt.edu.cn)
Source title:Journal of the Optical Society of America B: Optical Physics
Abbreviated source title:J Opt Soc Am B
Volume:34
Issue:5
Issue date:May 1, 2017
Publication year:2017
Pages:998-1003
Language:English
ISSN:07403224
E-ISSN:15208540
CODEN:JOBPDE
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:Design, fabrication, and optical gain performance of the gain-guided and index-antiguided (GG-IAG) fiber are studied systematically in this work. The main parameters of the GG-IAG fiber, i.e., a, Δn, g, and ν, are designed by single-mode operation theories, followed by a detailed study of the fabrication of the GG-IAG fiber, including preform design and fabrication, fiber-drawing conditions, and so on. GG-IAG fibers with different core diameters (100-380 μm) are obtained and their corresponding performance is measured. In order to verify whether the parameters of the fabricated GG-IAG fiber meet the theoretical design, the laser amplifier experiments of the GG-IAG fiber and the fabricated gain-guided and index-guided (GG-IG) fiber are both demonstrated. The experimental results show that the net optical gain coefficient of the GG-IG fiber is the sum of the net optical gain coefficient and the leakage loss coefficient of the GG-IAG fiber, which indicates that the fabricated GG-IAG fiber parameters and performance are consistent with the theoretical design. This work should help further exploration of the GG-IAG fiber. 2017 Optical Society of America.
Number of references:21
Main heading:Fiber amplifiers
Controlled terms:Fibers - Optical fiber fabrication - Optical gain
Uncontrolled terms:Fiber parameters - Gain coefficients - Gain performance - Index antiguided - Laser amplifiers - Phosphate glass fibers - Single mode operation - Theoretical design
Classification code:741.1 Light/Optics - 741.1.2 Fiber Optics - 744.4 Solid State Lasers
Numerical data indexing:Size 1.00e-04m to 3.80e-04m
DOI:10.1364/JOSAB.34.000998
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<216>
Accession number:20171703607579
Title:Study on the key alignment technology of the catadioptric Optical system
Authors:Song, Chong (1); Fu, Xing (1); Fu, Xi-Hong (1); Kang, Xiao-Peng (1); Liu, Kai (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102564L
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:Optical system alignment has a great influence on the whole system accuracy. In this paper, the processing of optical system alignment was mainly studied, the processing method of optics on the primary and secondary mirrors, front correction lens group and behind correction lens group with high precision centering lathe and internal focusing telescope. Then using the height indicator complete the system alignment of the primary mirror, secondary mirror, front correction group and behind correction group. Finally, based on the zygo interferometer detect the wavefront information. Using this alignment program for catadioptric optical system, the wavefront aberration of optical system, focal length, modulation transfer function (MTF) and other technical indicators have reached the requirements. 2017 SPIE.
Number of references:7
Main heading:Aberrations
Controlled terms:Alignment - Lenses - Mirrors - Optical systems - Photonics - Processing - Wavefronts
Uncontrolled terms:Internal focusing telescopes - Modulation transfer function (MTF) - Processing method - Secondary mirror - Technical indicator - Wave aberrations - Wavefront aberrations - Zygo interferometer
Classification code:601.1 Mechanical Devices - 741.3 Optical Devices and Systems - 913.4 Manufacturing
DOI:10.1117/12.2259815
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<217>
Accession number:20171703607577
Title:An estimated method of visibility for a remote sensing system based on LabVIEW and Arduino
Authors:Chen, Xiaochuan (1, 3); Ruan, Chi (2); Zheng, Hairong (3)
Author affiliation:(1) Union Research Center for Advanced Photonics and Optical Engineering, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Shanxi Normal University, Xi'an; 710119, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) School of Physics and Information Technology, Shaanxi Normal University, Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102564H
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:Visibility data have long needed to traffic meteorological monitoring and warning system, but visibility data have monitored with expensive special equipment. Visibility degradation in fog is due to the light scattering of fog droplets, which are transit from aerosols via activation. Considering strong correlation between PM
Number of references:7
Main heading:Monitoring
Controlled terms:Controllers - Light scattering - Photonics - Regression analysis - Remote control - Remote sensing - Visibility
Uncontrolled terms:Arduino - Design and implements - LabViEW - Meteorological monitoring - Remote monitoring - Remote monitoring system - Remote sensing system - Visibility degradation
Classification code:731.1 Control Systems - 732.1 Control Equipment - 741.1 Light/Optics - 741.2 Vision - 922.2 Mathematical Statistics
Numerical data indexing:Size 2.50e-06m
DOI:10.1117/12.2258723
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<218>
Accession number:20171703607572
Title:Study on the optical properties of the off-axis parabolic collimator with eccentric pupil
Authors:Gang, Li (1, 2); Xin, Gao (3); Jing, Duan (1); Henjin, Zhang (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an; 710119, China; (2) University of the Chinese Academy of Sciences, Beijing; 100049, China; (3) Beijing Tracking and Communication Technology Research Institute, Beijing; 100094, China
Corresponding author:Gang, Li
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102564B
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:The off-axis parabolic collimator with eccentric pupil has the advantages of wide spectrum, simple structure, easy assembly and adjustment, high performance price ratio.So, it is widely used for parameters testing and image quality calibration of ground-based and space-based cameras. In addition to the Strehl ratio, resolution, wavefront aberration, modulation transfer function, the general evaluation criteria on the imaging quality of the optical system, the beam parallelism characterize the collimator angle resolving capability and collimation condition of the collimator with the target board, can be measured easily, quickly and operation process is simple, but the study mainly focus on how to measure it so far.In order to solve Quantitative calculation of this problem, firstly, the discussion of aberration condition of the off-axis parabolic is carried out based on the the primary aberration theory. Secondly, analysis on the influencing factor on collimator optical properties is given, including the geometrical aberrations of spherical aberration, coma, astigmatism, the relation between the position of the eccentric pupil and the aberration and optical element surface wavefront aberration, after that, according to the basis of diffraction and wavefront aberration theory, the paper deduced calculation method of the beam parallelism, at last, an example of a 400mm diameter off-axis parabolic collimator with eccentric pupil is given to caculate, the practical results shows that calculation data is well in accordance with actual measurement data and results can meet the demand and has a guiding significance to the actual project manufacture and the theory analysis. 2017 SPIE.
Number of references:26
Main heading:Aberrations
Controlled terms:Image quality - Optical collimators - Optical systems - Photonics - Quality control - Wavefronts
Uncontrolled terms:Beam parallelism - Eccentric pupil - Guiding significances - Off-axis parabolic - Primary aberration - Quantitative calculation - Spherical aberrations - Wavefront aberrations
Classification code:741.3 Optical Devices and Systems - 913.3 Quality Assurance and Control
Numerical data indexing:Size 4.00e-01m
DOI:10.1117/12.2258223
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<219>
Accession number:20171703607527
Title:Analysis and compensation of disturbance for small inertial stabilized line-of-sight system
Authors:Meng, Zhang (1, 2); Junfeng, Han (2)
Author affiliation:(1) University of Chinese, Academy of Sciences, China; (2) Xi'An Institute of Optics and Precision Mechanics CAS, GaoXin qu, XinXi road 17, Xi'An; 710129, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:1025626
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:One of the main factors that affect the performance of stabilized Line-of-Sight (LOS) control system is disturbance torque. Firstly, the transfer function between disturbance torque and angular velocity of LOS is given by establishing the system dynamics model. Secondly, we investigate the characteristics of disturbance torque for small inertial Line-of-Sight control system. Thirdly, an application of disturbance observer is presented to compensate for disturbance, such as friction and mass imbalance. In this paper, consider only friction. Simulation is made by using the friction model output as disturbance input. In the course of Matlab simulation, the compensation by using disturbance observer improves the overall stabilization performance of the system. The RMS value of the velocity error has decreased to 10%. 2017 SPIE.
Number of references:12
Main heading:Torque
Controlled terms:Control systems - Friction - MATLAB - Photonics - Tribology
Uncontrolled terms:Disturbance inputs - Disturbance observer - Disturbance torque - Friction torque - Line-of-sight control - Line-of-sight systems - Small inertia - System dynamics model
Classification code:731.1 Control Systems - 741.1 Light/Optics - 921 Mathematics - 931 Classical Physics; Quantum Theory; Relativity - 931.2 Physical Properties of Gases, Liquids and Solids
Numerical data indexing:Percentage 1.00e+01%
DOI:10.1117/12.2257355
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<220>
Accession number:5236060
Title:Remote sensing scene classification by unsupervised representation learning
Authors:Lu, Xiaoqiang (1); Zheng, Xiangtao (1); Yuan, Yuan (1)
Author affiliation:(1) Center for OPTicalIMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Lu, Xiaoqiang(luxq666666@gmail.com)
Source title:IEEE Transactions on Geoscience and Remote Sensing
Abbreviated source title:IEEE Trans Geosci Remote Sens
Volume:55
Issue:9
Issue date:September 2017
Publication year:2017
Pages:5148-5157
Article number:7936433
Language:English
ISSN:01962892
CODEN:IGRSD2
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:With the rapid development of the satellite sensor technology, high spatial resolution remote sensing (HSR) data have attracted extensive attention in military and civilian applications. In order to make full use of these data, remote sensing scene classification becomes an important and necessary precedent task. In this paper, an unsupervised representation learning method is proposed to investigate deconvolution networks for remote sensing scene classification. First, a shallow weighted deconvolution network is utilized to learn a set of feature maps and filters for each image by minimizing the reconstruction error between the input image and the convolution result. The learned feature maps can capture the abundant edge and texture information of high spatial resolution images, which is definitely important for remote sensing images. After that, the spatial pyramid model (SPM) is used to aggregate features at different scales to maintain the spatial layout of HSR image scene. A discriminative representation for HSR image is obtained by combining the proposed weighted deconvolution model and SPM. Finally, the representation vector is input into a support vector machine to finish classification. We apply our method on two challenging HSR image data sets: the UCMerced data set with 21 scene categories and the Sydney data set with seven land-use categories. All the experimental results achieved by the proposed method outperform most state of the arts, which demonstrates the effectiveness of the proposed method. ？ 1980-2012 IEEE.
Number of references:55
Controlled terms:data set - deconvolution - image classification - image processing - remote sensing - satellite sensor - spatial resolution - support vector machine - unsupervised classification
Geographic terms:Australia - New South Wales - Sydney [New South Wales]
Classification code:71.8.5.4 Remote sensing: numerical and image analysis
DOI:10.1109/TGRS.2017.2702596
Database:GEOBASE
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<221>
Accession number:20173103999046
Title:NIR 3D GISC lidar on a balloon-borne platform
Authors:Wang, Chenglong (1, 2); Mei, Xiaodong (1, 2); Pan, Long (1, 2); Wang, Pengwei (1, 2); Li, Wang (1); Gao, Xin (1); Xie, Meilin (3); Han, Junfeng (3); Zhang, Hui (2, 4); Bo, Zunwang (1); Chen, Mingliang (1); Gong, Wenling (1); Han, Shensheng (1)
Author affiliation:(1) Key Laboratory for Quantum Optics and Center for Cold Atom Physics of CAS, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China; (2) University of Chinese Academy of Sciences, Beijing, China; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China; (4) Nanjing Institute of Astronomical Optics and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Nanjing, China
Corresponding author:Gong, Wenling(gongwl@siom.ac.cn)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F44-3D 2017
Part number:1 of 1
Issue title:3D Image Acquisition and Display: Technology, Perception and Applications, 3D 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:3D Image Acquisition and Display: Technology, Perception and Applications, 3D 2017
Conference date:June 26, 2017 - June 29, 2017
Conference location:San Francisco, CA, United states
Conference code:136638
Sponsor:FISBA Innovators in Photonics; Foto Nation; Lockheed Martion; OSA
Publisher:OSA - The Optical Society
Abstract:The first NIR 3D GISC lidar on a balloon-borne platform is reported in this paper. Experimental results demonstrate that both the transverse and range resolutions of better than 0:5m at over 1km hight can be achieved by this lidar even under middle turbulence weather conditions, which suggests its great prospect in remote sensing application. 2016 OSA.
Number of references:8
Page count:3
Main heading:Three dimensional displays
Controlled terms:Balloons - Image acquisition - Infrared devices - Optical radar - Remote sensing
Uncontrolled terms:Range resolution - Remote sensing applications
Classification code:652.5 Balloons and Gliders - 716.2 Radar Systems and Equipment - 723 Computer Software, Data Handling and Applications
Numerical data indexing:Size 1.00e+03m, Size 5.00e+00m
DOI:10.1364/3D.2017.JTu5A.11
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<222>
Accession number:20174104243167
Title:Balanced clustering with least square regression
Authors:Liu, Hanyang (1); Han, Junwei (1); Nie, Feiping (2); Li, Xuelong (3)
Author affiliation:(1) School of Automation, Northwestern Polytechnical University, Xi'an; 710072, China; (2) School of Computer Science, Center for OPTIMAL, Northwestern Polytechnical University, Xi'an; 710072, China; (3) Center for OPTIMAL, State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Nie, Feiping(feipingnie@gmail.com)
Source title:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Abbreviated source title:AAAI Conf. Artif. Intell., AAAI
Part number:1 of 1
Issue title:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Issue date:2017
Publication year:2017
Pages:2231-2237
Language:English
Document type:Conference article (CA)
Conference name:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Conference date:February 4, 2017 - February 10, 2017
Conference location:San Francisco, CA, United states
Conference code:130407
Sponsor:Amazon; Artificial Intelligence; Baidu; et al.; IBM; Tencent
Publisher:AAAI press
Abstract:Clustering is a fundamental research topic in data mining. A balanced clustering result is often required in a variety of applications. Many existing clustering algorithms have good clustering performances, yet fail in producing balanced clusters. In this paper, we propose a novel and simple method for clustering, referred to as the Balanced Clustering with Least Square regression (BCLS), to minimize the least square linear regression, with a balance constraint to regularize the clustering model. In BCLS, the linear regression is applied to estimate the class-specific hyperplanes that partition each class of data from others, thus guiding the clustering of the data points into different clusters. A balance constraint is utilized to regularize the clustering, by minimizing which can help produce balanced clusters. In addition, we apply the method of augmented Lagrange multipliers (ALM) to help optimize the objective model. The experiments on seven real-world benchmarks demonstrate that our approach not only produces good clustering performance but also guarantees a balanced clustering result.
Copyright ？ 2017, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved.
Number of references:30
Main heading:Clustering algorithms
Controlled terms:Artificial intelligence - Benchmarking - Data mining - Lagrange multipliers - Least squares approximations - Regression analysis
Uncontrolled terms:Augmented lagrange multipliers - Balanced clustering - Clustering model - Fundamental research - Least Square - Least square regression - Objective modeling - SIMPLE method
Classification code:723.2 Data Processing and Image Processing - 723.4 Artificial Intelligence - 903.1 Information Sources and Analysis - 921.6 Numerical Methods - 922.2 Mathematical Statistics
Funding details: Number: 61473231, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61522207, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Science Foundation of China under Grant No.61473231 and Grant No.61522207.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<223>
Accession number:20171703607647
Title:Optimal design of an earth observation optical system with dual spectral and high resolution
Authors:Yan, Pei-Pei (1); Jiang, Kai (1); Liu, Kai (1); Duan, Jing (1); Shan, Qiusha (1)
Author affiliation:(1) Photoelectric Measurement and Control Technology Research Department, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy Sciences, Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102561X
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:With the increasing demand of the high-resolution remote sensing images by military and civilians, Countries around the world are optimistic about the prospect of higher resolution remote sensing images. Moreover, design a visible/infrared integrative optic system has important value in earth observation. Because visible system can't identify camouflage and recon at night, so we should associate visible camera with infrared camera. An earth observation optical system with dual spectral and high resolution is designed. The paper mainly researches on the integrative design of visible and infrared optic system, which makes the system lighter and smaller, and achieves one satellite with two uses. The working waveband of the system covers visible, middle infrared (3-5um). Dual waveband clear imaging is achieved with dispersive RC system. The focal length of visible system is 3056mm, F/# is 10.91. And the focal length of middle infrared system is 1120mm, F/# is 4. In order to suppress the middle infrared thermal radiation and stray light, the second imaging system is achieved and the narcissus phenomenon is analyzed. The system characteristic is that the structure is simple. And the especial requirements of the Modulation Transfer Function (MTF), spot, energy concentration, and distortion etc. are all satisfied. 2017 SPIE.
Number of references:7
Main heading:Optical systems
Controlled terms:Cameras - Infrared devices - Military photography - Observatories - Photonics - Remote sensing - Stray light
Uncontrolled terms:Dual spectral - Earth observation systems - Energy concentration - High resolution - High resolution remote sensing images - Modulation transfer function (MTF) - Remote sensing images - System characteristics
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.1 Photography - 742.2 Photographic Equipment
Numerical data indexing:Size 1.12e+00m, Size 3.06e+00m
DOI:10.1117/12.2257219
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<224>
Accession number:20180104611882
Title:Pulsed quantum frequency combs from an actively mode-locked intra-cavity generation scheme
Authors:Roztocki, Piotr (1); Kues, Michael (1, 2); Reimer, Christian (1); Wetzel, Benjamin (1, 3); Little, Brent E. (4); Chu, Sai T. (5); Moss, David J. (1, 6); Morandotti, Roberto (1, 7, 8)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) School of Mathematical and Physical Sciences, University of Sussex, Sussex House, Falmer, Brighton; BN1 9RH, United Kingdom; (4) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, China; (5) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, Hong Kong; (6) Center for Microphotonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (7) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (8) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Corresponding author:Kues, Michael
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F82-CLEO_Europe 2017
Part number:1 of 1
Issue title:The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781509067367
Document type:Conference article (CA)
Conference name:The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
Conference date:June 25, 2017 - June 29, 2017
Conference location:Munich, Germany
Conference code:139018
Publisher:OSA - The Optical Society
Number of references:3
Page count:1
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<225>
Accession number:20173804172835
Title:Learning bregman distance functions for structural learning to rank
Authors:Li, Xi (1, 2); Pi, Te (3); Zhang, Zhongfei (3); Zhao, Xueyi (3); Wang, Meng (4); Li, Xuelong (5); Yu, Philip S. (6)
Author affiliation:(1) College of Computer Science and Technology, Zhejiang University, Hangzhou; 310027, China; (2) Alibaba-Zhejiang University, Joint Institute of Frontier Technologies, Hangzhou, China; (3) College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou; 310027, China; (4) School of Computer and Information, Hefei University of Technology, Hefei; 230009, China; (5) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (6) Department of Computer Science, University of Illinois at Chicago, Chicago; IL; 60607, United States
Corresponding author:Li, Xi(xilizju@zju.edu.cn)
Source title:IEEE Transactions on Knowledge and Data Engineering
Abbreviated source title:IEEE Trans Knowl Data Eng
Volume:29
Issue:9
Issue date:September 1, 2017
Publication year:2017
Pages:1916-1927
Article number:7820190
Language:English
ISSN:10414347
CODEN:ITKEEH
Document type:Journal article (JA)
Publisher:IEEE Computer Society
Abstract:We study content-based learning to rank from the perspective of learning distance functions. Standardly, the two key issues of learning to rank, feature mappings and score functions, are usually modeled separately, and the learning is usually restricted to modeling a linear distance function such as the Mahalanobis distance. However, the modeling of feature mappings and score functions are mutually interacted, and the patterns underlying the data are probably complicated and nonlinear. Thus, as a general nonlinear distance family, the Bregman distance is a suitable distance function for learning to rank, due to its strong generalization ability for distance functions, and its nonlinearity for exploring the general patterns of data distributions. In this paper, we study learning to rank as a structural learning problem, and devise a Bregman distance function to build the ranking model based on structural SVM. To improve the model robustness to outliers, we develop a robust structural learning framework for the ranking model. The proposed model Robust Structural Bregman distance functions Learning to Rank (RSBLR) is a general and unified framework for learning distance functions to rank. The experiments of data ranking on real-world datasets show the superiority of this method to the state-of-the-art literature, as well as its robustness to the noisily labeled outliers. 1989-2012 IEEE.
Number of references:54
Main heading:Mapping
Controlled terms:Statistics
Uncontrolled terms:Bregman distances - Distance functions - Generalization ability - Learning to rank - Mahalanobis distances - Real-world datasets - Structural learning - structural SVM
Classification code:405.3 Surveying - 922.2 Mathematical Statistics
DOI:10.1109/TKDE.2017.2654250
Funding details: Number: 2015CB352302, Acronym: -, Sponsor: -;Number: 2012CB316400, Acronym: -, Sponsor: -;Number: U1509206, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61472353, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61672456, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grants (U1509206, 61472353, and 61672456), in part by the National Basic Research Program of China under Grant 2012CB316400 and Grant 2015CB352302, in part by the Alibaba-Zhejiang University Joint Institute of Frontier Technologies. Xi Li is the corresponding author.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<226>
Accession number:20171403514881
Title:A sCMOS camera and its tests for focal plane metrology and PSF centroiding experiment
Authors:Li, Haitao (1, 2, 4); Li, Baoquan (1, 2, 3); Cao, Yang (1, 2, 3); Li, Ligang (3, 4); Yang, Jianfeng (3, 5); Ge, Wei (5); Lv, Baogang (5); Tao, Jinyou (5)
Author affiliation:(1) National Space Science Center, Chinese Academy of Sciences, Beijing, China; (2) Key Laboratory of Avionics and Information Technology for Complex Aerospace Systems, Chinese Academy of Sciences, Beijing, China; (3) University of Chinese Academy of Sciences, Beijing, China; (4) Key Laboratory of Planetary Sciences, Chinese Academy of Sciences, Shanghai, China; (5) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10255
Part number:1 of 1
Issue title:Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016
Issue date:2017
Publication year:2017
Article number:102551P
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510610118
Document type:Conference article (CA)
Conference name:Chinese Society for Optical Engineering Conferences, CSOE 2016
Conference date:Nov. 2016
Conference location:Jinhua, Suzhou, Chengdu, Xi'an, And Wuxi, China
Conference code:126842
Sponsor:Chinese Academy of Engineering; Chinese Society for Optical Engineering; National Natural Science Foundation of China; Science and Technology on Low-light-level Night Vision Laboratory
Publisher:SPIE
Abstract:In this paper, the feasibility of a sCMOS camera for astrometric exoplanet detection space mission was evaluated and the evaluation methods were also studied. A 2k x 2k single-chip sCMOS camera was installed on the metrology testbed for the space mission. The pixel size of the detector is 11μm, corresponding to 1.86 arcsec on the focal plane. The sCMOS camera runs with a electronic rolling shutter. We tested the performance of the camera in detail, including the gain, linearity, readout noise, dark current, pixel response non-uniformity, etc. The data acquisition performance for the pseudo-star and the interference fringes are also studied. 2017 SPIE.
Number of references:10
Main heading:Cameras
Controlled terms:Data acquisition - Focusing - Pixels
Uncontrolled terms:Acquisition performance - Evaluation methods - Exoplanet detection - Focal Plane - Interference fringe - Linearity - Photon transfer curve - SCMOS
Classification code:723.2 Data Processing and Image Processing - 742.2 Photographic Equipment
Numerical data indexing:Size 1.10e-05m
DOI:10.1117/12.2268565
Funding details: Number: PSL15-13, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: XDA04060900, Acronym: SPP, Sponsor: Sociedade Portuguesa de Pediatria;Number: -, Acronym: AAO, Sponsor: Australian Astronomical Observatory;Number: 41604152, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61627818, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Thanks to the support of the advanced research project in Chinese Strategic Pioneer Program (SPP) on Space Science(NO. XDA04060900). The work was also funded by the Key Laboratory of Planetary Sciences, Shanghai Astronomical Observatory / Purple Mountain Observatory, Chinese Academy of Sciences(NO. PSL15-13), the National Science Foundation of China(NO. 41604152, 61627818)
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<227>
Accession number:20170703338991
Title:A novel PDE-based single image super-resolution reconstruction method
Authors:Zhao, Xiaodong (1, 2); Cao, Jianzhong (1, 2); Zhou, Zuofeng (1, 2); Huang, Jijiang (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese, Academy of Sciences, Beijing; 100049, China
Corresponding author:Zhao, Xiaodong(zxd861227@opt.ac.cn)
Source title:International Journal of Pattern Recognition and Artificial Intelligence
Abbreviated source title:Int J Pattern Recognit Artif Intell
Volume:31
Issue:6
Issue date:June 1, 2017
Publication year:2017
Article number:1754010
Language:English
ISSN:02180014
CODEN:IJPIEI
Document type:Journal article (JA)
Publisher:World Scientific Publishing Co. Pte Ltd
Abstract:For applications such as remote sensing imaging and medical imaging, high-resolution (HR) images are urgently required. Image Super-Resolution (SR) reconstruction has great application prospects in optical imaging. In this paper, we propose a novel unified Partial Differential Equation (PDE)-based method to single image SR reconstruction. Firstly, two directional diffusion terms calculated by Anisotropic Nonlinear Structure Tensor (ANLST) are constructed, combing information of all channels to prevent singular results, making full use of its directional diffusion feature. Secondly, by introducing multiple orientations estimation using high order matrix-valued tensor instead of gradient, orientations can be estimated more precisely for junctions or corners. As a unique descriptor of orientations, mixed orientation parameter (MOP) is separated into two orientations by finding roots of a second-order polynomial in the nonlinear part. Then, we synthesize a Gradient Vector Flow (GVF) shock filter to balance edge enhancement and de-noising process. Experimental results confirm the validity of the method and show that the method enhances image edges, restores corners or junctions, and suppresses noise robustness, which is competitive with the existing methods. 2017 World Scientific Publishing Company.
Number of references:38
Main heading:Image reconstruction
Controlled terms:Anisotropy - Image enhancement - Medical imaging - Nonlinear equations - Optical resolving power - Partial differential equations - Remote sensing - Tensors
Uncontrolled terms:Image super resolutions - Multiple orientations - Nonlinear structure tensor - Partial differential equations (PDE) - Remote sensing imaging - Second-order polynomial - Single-image super-resolution reconstruction - Super resolution
Classification code:741.1 Light/Optics - 746 Imaging Techniques - 921.1 Algebra - 921.2 Calculus - 931.2 Physical Properties of Gases, Liquids and Solids
DOI:10.1142/S0218001417540106
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<228>
Accession number:20173504101693
Title:Survey of Spatio-Temporal Interest Point Detection Algorithms in Video (Open Access)
Authors:Li, Yanshan (1); Xia, Rongjie (1); Huang, Qinghua (2, 3, 4); Xie, Weixin (1); Li, Xuelong (5)
Author affiliation:(1) ATR National Key Laboratory of Defense Technology, Shenzhen University, Shenzhen; 518060, China; (2) College of Information Engineering, Shenzhen University, Shenzhen; 518060, China; (3) School of Electronic and Information Engineering, South China University of Technology, Guangzhou; 510641, China; (4) Center for Optical Imagery Analysis and Learning, School of Electronics and Information, Northwestern Polytechnical University, Xian; 710072, China; (5) State Key Laboratory of Transient Optics and Photonics, Center for Optical Imagery Analysis and Learning, Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian; 710119, China
Corresponding author:Huang, Qinghua(qhhuang@scut.edu.cn)
Source title:IEEE Access
Abbreviated source title:IEEE Access
Volume:5
Issue date:2017
Publication year:2017
Pages:10323-10331
Article number:7944559
Language:English
E-ISSN:21693536
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Recently, increasing attention has been paid to the detection of spatio-temporal interest points (STIPs), which has become a key technique and research focus in the field of computer vision. Its applications include human action recognition, video surveillance, video summarization, and content-based video retrieval. Amount of work has been done by many researchers in STIP detection. This paper presents a comprehensive review on STIP detection algorithms. We first propose the detailed introductions and analysis of the existing STIP detection algorithms. STIP detection algorithms are robust in detecting interest points for video in the spatio-temporal domain. Next, we summarize the existing challenges in the STIP detection for video, such as low time efficiency, poor robustness with respect to camera movement, illumination change, perspective occlusion, and background clutter. This paper also presents the application situations of STIP and discusses the potential development trends of STIP detection. 2013 IEEE.
Number of references:55
Main heading:Security systems
Controlled terms:Image retrieval - Signal detection
Uncontrolled terms:Content-based video retrieval - Detection algorithm - Human-action recognition - Illumination changes - Local invariant features - Spatio-temporal domains - Spatio-temporal interest points - Video
Classification code:716.1 Information Theory and Signal Processing - 914.1 Accidents and Accident Prevention
DOI:10.1109/ACCESS.2017.2712789
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<229>
Accession number:20173904199634
Title:Remote sensing scene classification by unsupervised representation learning
Authors:Lu, Xiaoqiang (1); Zheng, Xiangtao (1); Yuan, Yuan (1)
Author affiliation:(1) Center for OPTicalIMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Lu, Xiaoqiang(luxq666666@gmail.com)
Source title:IEEE Transactions on Geoscience and Remote Sensing
Abbreviated source title:IEEE Trans Geosci Remote Sens
Volume:55
Issue:9
Issue date:September 2017
Publication year:2017
Pages:5148-5157
Article number:7936433
Language:English
ISSN:01962892
CODEN:IGRSD2
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:With the rapid development of the satellite sensor technology, high spatial resolution remote sensing (HSR) data have attracted extensive attention in military and civilian applications. In order to make full use of these data, remote sensing scene classification becomes an important and necessary precedent task. In this paper, an unsupervised representation learning method is proposed to investigate deconvolution networks for remote sensing scene classification. First, a shallow weighted deconvolution network is utilized to learn a set of feature maps and filters for each image by minimizing the reconstruction error between the input image and the convolution result. The learned feature maps can capture the abundant edge and texture information of high spatial resolution images, which is definitely important for remote sensing images. After that, the spatial pyramid model (SPM) is used to aggregate features at different scales to maintain the spatial layout of HSR image scene. A discriminative representation for HSR image is obtained by combining the proposed weighted deconvolution model and SPM. Finally, the representation vector is input into a support vector machine to finish classification. We apply our method on two challenging HSR image data sets: the UCMerced data set with 21 scene categories and the Sydney data set with seven land-use categories. All the experimental results achieved by the proposed method outperform most state of the arts, which demonstrates the effectiveness of the proposed method. 1980-2012 IEEE.
Number of references:55
Main heading:Remote sensing
Controlled terms:Image resolution - Land use - Military applications
Uncontrolled terms:Adaptive deconvolution - Deconvolution models - High spatial resolution - High spatial resolution images - Reconstruction error - Remote sensing images - Scene classification - unsupervised representation learning
Classification code:403 Urban and Regional Planning and Development - 404.1 Military Engineering
DOI:10.1109/TGRS.2017.2702596
Funding details: Number: LSIT201408, Acronym: -, Sponsor: -;Number: QYZDB-SSW-JSC015, Acronym: -, Sponsor: -;Number: 2013CB336500, Acronym: -, Sponsor: -;Number: luxq666666@gmail.com, Acronym: -, Sponsor: -;Number: KGZD-EW-T03, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 60632018, Acronym: -, Sponsor: -;Number: 61232010, Acronym: -, Sponsor: -;Number: 61472413, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Manuscript received March 4, 2017; accepted April 25, 2017. Date of publication May 31, 2017; date of current version August 25, 2017. This work was supported in part by the National Basic Research Program of China (Youth 973 Program) under Grant 2013CB336500, in part by the State Key Program of National Natural Science of China under Grant 60632018, in part by the State Key Program of National Natural Science of China under Grant 61232010, in part by the National Natural Science Foundation of China under Grant 61472413, in part by the Key Research Program of the Chinese Academy of Sciences under Grant KGZD-EW-T03, in part by the Open Research Fund of the Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences under Grant LSIT201408, and in part by the Young Top-notch Talent Program of Chinese Academy of Sciences under Grant QYZDB-SSW-JSC015. (Corresponding author: Xiaoqiang Lu.) The authors are with the Center for OPTicalIMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, Shaanxi, P. R. China (e-mail: luxq666666@gmail.com).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<230>
Accession number:20165203189515
Title:Character and mechanism of surface micromachining for C/SiC composites by ultrashort plus laser
Authors:Wang, J. (1); Liu, Y. (1); Wang, C. (1); Li, W. (1); Yang, X. (2); Zhang, Q. (1); Cheng, L. (1); Zhang, L. (1)
Author affiliation:(1) Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an, China
Corresponding author:Liu, Y.(yongshengliu@nwpu.edu.cn)
Source title:Advances in Applied Ceramics
Abbreviated source title:Adv. Appl. Ceram.
Volume:116
Issue:2
Issue date:February 17, 2017
Publication year:2017
Pages:99-107
Language:English
ISSN:17436753
E-ISSN:17436761
Document type:Journal article (JA)
Publisher:Taylor and Francis Ltd.
Abstract:A new surface micromachining way of ultrashort plus laser for C/SiC composites with high quality and efficiency was demonstrated, including picosecond and femtosecond laser. Surface morphologies, element content and bonding states of C/SiC composites were analysed in detail after machined by picosecond and femtosecond laser power respectively. For femtosecond laser machining, the amount of nanoparticles increased with increasing laser power. At 20 and 50 mW, Si–C, C–C and Si–O bonds existed in nanoparticles, while Si–C bonds disappeared at 70 mW. For picosecond laser machining, cauliflower-like particles and periodic ripple with certain depth were formed distinctly. Furthermore, thermal ablation phenomenon occurred, and only Si–O bonds existed in particles due to the oxidation of the carbon fibres and SiC matrix. The results showed that femtosecond laser with low power was more suitable to the surface machining due to better machining quality and less machining damage compared with high power picosecond laser. 2016 Institute of Materials, Minerals and Mining.
Number of references:26
Main heading:Silicon compounds
Controlled terms:Composite micromechanics - Femtosecond lasers - Nanoparticles - Picosecond lasers - Silicon carbide - Surface micromachining
Uncontrolled terms:C/SiC composites - Element contents - Femtosecond laser machining - Laser machining - Machining damage - Machining quality - Surface machining - Thermal ablation
Classification code:761 Nanotechnology - 804.2 Inorganic Compounds - 931.1 Mechanics - 933 Solid State Physics
DOI:10.1080/17436753.2016.1257101
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<231>
Accession number:20183105627013
Title:Real-time classification of forearm movements based on high density surface electromyography
Authors:Wei, Yue (1, 4); Geng, Yanjuan (1); Yu, Wenlong (1); Samuel, Oluwarotimi Williams (1, 2); Jiang, Naifu (3); Zhou, Hui (1); Guo, Xin (4); Lu, Xiaoqiang (5); Li, Guanglin (1, 2)
Author affiliation:(1) Chinese Academy of Sciences (CAS), Key Laboratory of Human-Machine Intelligence-Synergy Systems, Shenzhen Institutes of Advanced Technology, Shenzhen; 518055, China; (2) Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen; 518055, China; (3) Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; (4) Hebei University of Technology, Tianjin; 300130, China; (5) Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian; 710119, China
Corresponding author:Geng, Yanjuan(yj.geng@siat.ac.cn)
Source title:2017 IEEE International Conference on Real-Time Computing and Robotics, RCAR 2017
Abbreviated source title:IEEE Int. Conf. Real-Time Comput. Robot., RCAR
Volume:2017-July
Part number:1 of 1
Issue title:2017 IEEE International Conference on Real-Time Computing and Robotics, RCAR 2017
Issue date:July 2, 2017
Publication year:2017
Pages:246-251
Language:English
ISBN-13:9781538620342
Document type:Conference article (CA)
Conference name:2017 IEEE International Conference on Real-Time Computing and Robotics, RCAR 2017
Conference date:July 14, 2017 - July 18, 2017
Conference location:1-6-1 Nishizaki-cho, Okinawa, Japan
Conference code:135217
Sponsor:Beijing Institute of Technology; Harbin Institute of Technology; IEEE Robotics and Automation Society (RA); Inst. Electrical and Electronics Engineers (IEEE)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Partial or complete loss of the upper limb motor function has great impact on the activities of daily life (ADL) of post-stroke survivors. To improve the rehabilitation effect of fine motor function of forearms, a couple of recent studies focused on methods that try to decode the limb motion intent of patients through physical exercises. However, there exist a few studies on real-time active rehabilitation method for the classification of multiple hand movements. In the current investigate, a pattern-recognition based rehabilitation environment was set up using high-density surface electromyogram (HD-sEMG) and the real-time classification performance of 21 forearm motions was investigated with eight healthy subjects. The results showed that the average motion completion rate across all subjects was 91.17% + 2.86%, which suggests the potential of intention-initiated approach in assistive rehabilitation technique. 2017 IEEE.
Number of references:26
Main heading:Patient rehabilitation
Controlled terms:Electromyography - Pattern recognition - Robotics
Uncontrolled terms:Active rehabilitations - Activities of Daily Life - Assistive rehabilitations - Classification performance - Healthy subjects - Physical exercise - Rehabilitation effects - Stroke survivors
Classification code:461.5 Rehabilitation Engineering and Assistive Technology - 731.5 Robotics
Numerical data indexing:Percentage 2.86e+00%
DOI:10.1109/RCAR.2017.8311868
Funding details: Number: #KQCX2015033117354152, Acronym: -, Sponsor: -;Number: 61403367, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under grants (#61403367,#91420301), the Shenzhen Governmental Basic Research Grant (#JCYJ20150401145529005), and the Shenzhen High-level Oversea Talent Program (Shenzhen Peacock Plan) Grant (#KQCX2015033117354152).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<232>
Accession number:20174904498308
Title:Transmitting volume Bragg gratings in PTR glass written with femtosecond Bessel beams
Authors:Cheng, G.H. (1); Zhang, Y.J. (1); Liu, Q. (2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) Zhejiang Wanli University, Ningbo; 315100, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10173
Part number:1 of 1
Issue title:Fourth International Symposium on Laser Interaction with Matter
Issue date:2017
Publication year:2017
Article number:1017322
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:4th International Symposium on Laser Interaction with Matter
Conference date:November 6, 2016
Conference location:Chengdu, China
Conference code:128620
Sponsor:Academy of Engineering Physics, Research Center of Laser Fusion; CAS, Changchun Institute of Optics, Fine Mechanics and Physics; et al.; Nanjing University of Science and Technology, Advanced Solid State Laser Technology Key Laboratory of the Ministry of Industry and Information Technology; National University of Defense Technology, Institute of High Energy Laser Technology; Northwest Institute of Nuclear Technology
Publisher:SPIE
Abstract:Transmitting volume Bragg gratings were fabricated in photo-thermo-refractive glass using femtosecond laser Bessel beams and thermal treatment. The phase contrast images of gratings under different writing power were investigated before and after annealing. Microstructures composed of nano-sized crystals were observed in the exposed regions. Optimized writing power (100 mW) achieved dense nano-crystals distribution. A maximum diffraction efficiency of 92.36% was achieved with 1 mm grating thickness at period of 5 μm. 2017 SPIE.
Number of references:10
Main heading:Bragg gratings
Controlled terms:Bessel functions - Diffraction efficiency - Efficiency - Glass - Laser beams - Laser tissue interaction - Plasma interactions
Uncontrolled terms:Bessel beam - Femtoseconds - Laser-matter interactions - Nano-sized crystals - Phase-contrast image - Photo-thermo-refractive glass - Volume Bragg gratings - Writing power
Classification code:741.3 Optical Devices and Systems - 744.8 Laser Beam Interactions - 812.3 Glass - 913.1 Production Engineering - 921 Mathematics - 932.3 Plasma Physics
Numerical data indexing:Percentage 9.24e+01%, Power 1.00e-01W, Size 1.00e-03m, Size 5.00e-06m
DOI:10.1117/12.2268292
Funding details: Number: No.LY14F050002, Acronym: -, Sponsor: Natural Science Foundation of Zhejiang Province;
Funding text:National Natural Science Foundation of Zhejiang (No.LY14F050002)
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<233>
Accession number:20174804477440
Title:844-fs mode-locked fiber laser by carboxyl-functionalized graphene oxide
Authors:Duan, Lina (1); Wang, Hushan (2); Bai, Jing (2); Wang, Yonggang (3); Wei, Lianglei (3); Chen, Zhendong (3); Yu, Jia (4); Wen, Jin (1); Li, Yan (1)
Author affiliation:(1) Xi'an Shiyou University, School of Science, Xi'an, China; (2) Chinese Academy of Sciences, Xi'an Institute of Optics and Precision Mechanics, State Key Laboratory of Transient Optics and Photonics, Xi'an, China; (3) Shaanxi Normal University, School of Physics and Information Technology, Xi'an, China; (4) Xi'an Technological University, School of Photoelectrical Engineering, Xi'an, China
Corresponding author:Duan, Lina(linaduan2010@hotmail.com)
Source title:Optical Engineering
Abbreviated source title:Opt Eng
Volume:56
Issue:11
Issue date:November 1, 2017
Publication year:2017
Article number:116104
Language:English
ISSN:00913286
E-ISSN:15602303
CODEN:OPEGAR
Document type:Journal article (JA)
Publisher:SPIE
Abstract:We had proved that a kind of graphene nanomaterial "carboxyl-functionalized graphene oxide (GO-COOH)" possessed nonlinear saturable absorber (SA) property. The modulation depth of a GO-COOH water solution was measured as ～8%. Moreover, a GO-COOH-based SA device was made and applied in an erbium-doped fiber laser. In this fiber laser, Q-switching pulses and mode-locked pulses were both obtained. With an increase in the pump power, the pulse width of Q-switching pulses decreased from 9.05 to 2.49 μs. The mode-locked pulse width was 844 fs, and the corresponding spectral bandwidth was 3.64 nm. Moreover, polarization adjusting or control was not needed during the whole process of mode locking. It illustrated that the proposed fiber laser incorporating GO-COOH could endure bigger intracavity birefringence. Our results indicated that the GO-COOH nanomaterial was a promising SA for generating high-performance pulse lasers. 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).
Number of references:32
Main heading:Mode-locked fiber lasers
Controlled terms:Fiber lasers - Fibers - Graphene - Locks (fasteners) - Nanostructured materials - Neodymium lasers - Optical pumping - Q switching - Saturable absorbers - Thin films - Ultrafast lasers
Uncontrolled terms:Carboxyl functionalized graphene oxides - Erbium doped fiber laser - Mode-locked pulse - Modulation depth - Spectral bandwidth - Switching pulse - Temporal solitons - Water solutions
Classification code:744 Lasers - 761 Nanotechnology - 804 Chemical Products Generally
Numerical data indexing:Size 3.64e-09m, Time 8.44e-13s, Time 9.05e-06s to 2.49e-06s
DOI:10.1117/1.OE.56.11.116104
Funding details: Number: GK201702005, Acronym: -, Sponsor: -;Number: 61505160, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the Central University Special Fund Basic Research and Operating Expenses GK201702005 and the National Natural Science Foundation of China 61505160.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<234>
Accession number:20181104902420
Title:High-rate and low-jitter optical pulse generation based on an optoelectronic oscillator using a cascaded polarization modulator and phase modulator
Authors:Liu, Anni (1); Liu, Jingliang (1); Dai, Jian (1, 2); Dai, Yitang (1); Yin, Feifei (1); Li, Jianqiang (1); Zhou, Yue (1); Xu, Kun (1, 3)
Author affiliation:(1) State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing; 100876, China; (2) State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences, Xian; 710119, China; (3) School of Science, Beijing University of Posts and Telecommunications, Beijing; 100876, China
Source title:ICOCN 2017 - 16th International Conference on Optical Communications and Networks
Abbreviated source title:ICOCN - Int. Conf. Optical Commun. Networks
Volume:2017-January
Part number:1 of 1
Issue title:ICOCN 2017 - 16th International Conference on Optical Communications and Networks
Issue date:November 27, 2017
Publication year:2017
Pages:1-3
Language:English
ISBN-13:9781538632734
Document type:Conference article (CA)
Conference name:16th International Conference on Optical Communications and Networks, ICOCN 2017
Conference date:August 7, 2017 - August 10, 2017
Conference location:Wuzhen, China
Conference code:133380
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:A novel optical pulse generator with high-rate and lowjitter is proposed based on the optoelectronic oscillator using a cascaded polarization modulator and phase modulator. Optical pulses with 10 GHz repetition rate and 29 ps width are demonstrated. According to the single-sideband phase noise of the generated microwave signal, 169 fs time jitter of the generated pulses in the 100 Hz to 1 MHz frequency range can be calculated. 2017 IEEE.
Number of references:6
Main heading:Light modulators
Controlled terms:Jitter - Light pulse generators - Optical communication - Optical signal processing - Optoelectronic devices - Phase modulation - Phase noise - Polarization - Pulse repetition rate
Uncontrolled terms:Frequency ranges - Microwave signals - Optical pulse generation - Opto-electronic oscillator - Phase modulator - Polarization modulators - Repetition rate - Single side bands
Classification code:701.2 Magnetism: Basic Concepts and Phenomena - 717.1 Optical Communication Systems - 741.3 Optical Devices and Systems - 744.1 Lasers, General
Numerical data indexing:Frequency 1.00e+02Hz to 1.00e+06Hz, Frequency 1.00e+10Hz, Time 1.69e-13s, Time 2.90e-11s
DOI:10.1109/ICOCN.2017.8121562
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<235>
Accession number:20183105636310
Title:Realization on image 2D-DCT sparse transform based on FPGA
Authors:Zhang, Haifeng (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an, Shanxi, China
Corresponding author:Zhang, Haifeng(zhanghf99@163.com)
Source title:2016 13th International Computer Conference on Wavelet Active Media Technology and Information Processing, ICCWAMTIP 2017
Abbreviated source title:Int. Comput. Conf. Wavelet Act. Media Technol. Inf. Process., ICCWAMTIP
Volume:2018-February
Part number:1 of 1
Issue title:2016 13th International Computer Conference on Wavelet Active Media Technology and Information Processing, ICCWAMTIP 2017
Issue date:July 2, 2017
Publication year:2017
Pages:175-178
Language:English
ISBN-13:9781509061259
Document type:Conference article (CA)
Conference name:14th International Computer Conference on Wavelet Active Media Technology and Information Processing, ICCWAMTIP 2017
Conference date:December 15, 2017 - December 17, 2017
Conference location:Chengdu, Sichuan Province, China
Conference code:135072
Sponsor:China International Talent Exchange Foundation; National High Technology Research and Development Program of China; The National Natural Science Foundation of China (NSFC)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Sampling is a necessary course that the Analog physical world leads to the world of digital information. Compressed sensing (CS) theory breaks through the traditional Nyquist sampling theorem for data acquisition. The research object of CS theory is a sparse representation of signals and here 2-D image sparse transform is achieved based on discrete cosine orthogonal basis. Furthermore, there are a presentation of 2D-DCT algorithm based on row-column decomposition structure and an illustration of the optimization algorithm of 1-D DCT based on FPGA emphatically, as well as the transpose RAM method between two levels 1-D DCT. Finally the rationality of the proposed algorithm is verified by comparing image 2D-DCT transformation based on FPGA and 2D-DCT calculation result in MATLAB. 2017 IEEE.
Number of references:6
Main heading:Discrete cosine transforms
Controlled terms:Compressed sensing - Data acquisition - Field programmable gate arrays (FPGA) - Image compression
Uncontrolled terms:Calculation results - Compression sensing - DCT algorithms - Nyquist sampling theorem - Optimization algorithms - Row column decomposition - Sparse representation - Sparse transform
Classification code:716.1 Information Theory and Signal Processing - 721.2 Logic Elements - 723.2 Data Processing and Image Processing - 921.3 Mathematical Transformations
DOI:10.1109/ICCWAMTIP.2017.8301473
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<236>
Accession number:20182705409253
Title:Numerical simulation and temporal characterization of dual-pumped microring-resonator-based optical frequency combs
Authors:Hu, Xiaohong (1, 2); Wang, Weiqiang (1, 2, 3); Wang, Leiran (1, 2); Zhang, Wenfu (1, 2, 3); Wang, Yishan (1); Zhao, Wei (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi’an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) China-UK Joint Research Center on Micro/Nano Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi’an; 710119, China
Source title:Photonics Research
Abbreviated source title:Photon. Res.
Volume:5
Issue:3
Issue date:June 1, 2017
Publication year:2017
Pages:207-211
Language:English
ISSN:23279125
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:Dual-pumped microring-resonator-based optical frequency combs (OFCs) and their temporal characteristics are numerically investigated and experimentally explored. The calculation results obtained by solving the driven and damped nonlinear Schr？dinger equation indicate that an ultralow coupled pump power is required to excite the primary comb modes through a non-degenerate four-wave-mixing (FWM) process and, when the pump power is boosted, both the comb mode intensities and spectral bandwidths increase. At low pump powers, the field intensity profile exhibits a cosine variation manner with frequency equal to the separation of the two pumps, while a roll Turing pattern is formed resulting from the increased comb mode intensities and spectral bandwidths at high pump powers. Meanwhile, we found that the power difference between the two pump fields can be transferred to the newly generated comb modes, which are located on both sides of the pump modes, through a cascaded FWM process. Experimentally, the dual-pumped OFCs were realized by coupling two self-oscillating pump fields into a microring resonator. The numerically calculated comb spectrum is verified by generating an OFC with 2.0 THz mode spacing over 160 nm bandwidth. In addition, the formation of a roll Turing pattern at high pump powers is inferred from the measured autocorrelation trace of a 10 free spectral range (FSR) OFC. The experimental observations accord well with the numerical predictions. Due to their large and tunable mode spacing, robustness, and flexibility, the proposed dual-pumped OFCs could find potential applications in a wide range of fields, including arbitrary optical waveform generation, high-capacity optical communications, and signal-processing systems. 2017 Chinese Laser Press.
Number of references:25
Main heading:Four wave mixing
Controlled terms:Bandwidth - Microcavities - Natural frequencies - Nonlinear equations - Optical communication - Optical materials - Optical parametric amplifiers - Optical resonators - Parametric amplifiers - Parametric oscillators - Signal processing
Uncontrolled terms:Free spectral range - Microring resonator - Non-degenerate four wave mixing - Numerical predictions - Optical frequency combs - Parametric oscillators and amplifiers - Signal processing systems - Temporal characteristics
Classification code:713.1 Amplifiers - 713.2 Oscillators - 714 Electronic Components and Tubes - 716.1 Information Theory and Signal Processing - 717.1 Optical Communication Systems - 741.3 Optical Devices and Systems
Numerical data indexing:Frequency 2.00e+12Hz, Size 1.60e-07m
DOI:10.1364/PRJ.5.000207
Funding details: Number: 2016YFF0200702, Acronym: -, Sponsor: -;Number: XDB 24030600, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61308037, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61635013, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61690222, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Strategic Priority Research Program of the Chinese Academy of Sciences (CAS) (XDB 24030600); National Key Research and Development Program of China (2016YFF0200702); National Natural Science Foundation of China (NSFC) (61690222, 61308037, 61635013); CAS-SAFEA International Partnership Program for Creative Research Teams.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<237>
Accession number:20171703606835
Title:Learning Discriminative Binary Codes for Large-scale Cross-modal Retrieval
Authors:Xu, Xing (1); Shen, Fumin (1); Yang, Yang (1); Shen, Heng Tao (1); Li, Xuelong (2)
Author affiliation:(1) School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu; 610051, China; (2) Center for OPTical IMagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian; 710119, China
Corresponding author:Shen, Fumin(fumin.shen@gmail.com)
Source title:IEEE Transactions on Image Processing
Abbreviated source title:IEEE Trans Image Process
Volume:26
Issue:5
Issue date:May 2017
Publication year:2017
Pages:2494-2507
Article number:7867785
Language:English
ISSN:10577149
CODEN:IIPRE4
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Hashing based methods have attracted considerable attention for efficient cross-modal retrieval on large-scale multimedia data. The core problem of cross-modal hashing is how to learn compact binary codes that construct the underlying correlations between heterogeneous features from different modalities. A majority of recent approaches aim at learning hash functions to preserve the pairwise similarities defined by given class labels. However, these methods fail to explicitly explore the discriminative property of class labels during hash function learning. In addition, they usually discard the discrete constraints imposed on the to-be-learned binary codes, and compromise to solve a relaxed problem with quantization to obtain the approximate binary solution. Therefore, the binary codes generated by these methods are suboptimal and less discriminative to different classes. To overcome these drawbacks, we propose a novel cross-modal hashing method, termed discrete cross-modal hashing (DCH), which directly learns discriminative binary codes while retaining the discrete constraints. Specifically, DCH learns modality-specific hash functions for generating unified binary codes, and these binary codes are viewed as representative features for discriminative classification with class labels. An effective discrete optimization algorithm is developed for DCH to jointly learn the modality-specific hash function and the unified binary codes. Extensive experiments on three benchmark data sets highlight the superiority of DCH under various cross-modal scenarios and show its state-of-the-art performance. 2016 IEEE.
Number of references:46
Main heading:Binary codes
Controlled terms:Benchmarking - Discriminant analysis - Hash functions - Optimization
Uncontrolled terms:Binary solutions - Cross-modal - Discrete constraints - Discrete optimization - Function learning - hashing - Heterogeneous features - State-of-the-art performance
Classification code:723.1 Computer Programming - 921.5 Optimization Techniques - 922 Statistical Methods
DOI:10.1109/TIP.2017.2676345
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<238>
Accession number:20182205249426
Title:Model in frequency-domain identification of a fast steering mirror system based on levenberg-marquardt algorithm
Authors:Peng, Chen (1); Yanbing, Liang (2)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Xi'an, China; (2) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Corresponding author:Peng, Chen(18363123192@163.com)
Source title:Proceedings - 2017 2nd International Conference on Cybernetics, Robotics and Control, CRC 2017
Abbreviated source title:Proc. - Int. Conf. Cybern., Robot. Control, CRC
Volume:2018-January
Part number:1 of 1
Issue title:Proceedings - 2017 2nd International Conference on Cybernetics, Robotics and Control, CRC 2017
Issue date:July 2, 2017
Publication year:2017
Pages:199-202
Language:English
ISBN-13:9781538606773
Document type:Conference article (CA)
Conference name:2nd International Conference on Cybernetics, Robotics and Control, CRC 2017
Conference date:July 21, 2017 - July 23, 2017
Conference location:Chengdu, Sichuan, China
Conference code:135561
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:A method for frequency-domain identification of a fast steering mirror system is provided. The method firstly uses swept sine as dynamic excitation signal to obtain the frequency characteristics of controlled object and frequency response data by dynamic signal analyzer Agilent 35670A. Then the paper uses data pre-processed to analyze magnitude-phase characteristics based on FFT (Fast Fourier Fransform). The error of FFT calculation is relative major. To obtain the frequency characteristics approaching to real system, windowing and Sample Hold is introduced to modify magnitude-phase characteristics. For non-parametric frequency characteristics curve of the system, in combination of Levenberg-Marquardt nonlinear least squares curve fitting and transfer function model based on dynamic mechanism modelling, this paper implements curve fitting for low frequency band with frequency characteristics. With this method, the frequency characteristics of complex system can be converted to accurate transfer function. Levenberg-Marquardt algorithm providing the theoretical support for parameterizing BODE diagram is an optimization strategy. The optimization strategy improves the matching degree between actual system and model system in process of modeling and it is provided for the compensation of the influence which is from the temperature shift and measurement error of components. The paper provides a theoretical foundation for building a more complex electro-optical tracking system. 2017 IEEE.
Number of references:5
Main heading:Curve fitting
Controlled terms:Bode diagrams - Cybernetics - Distillation columns - Error compensation - Fast Fourier transforms - Frequency response - Identification (control systems) - Mirrors - Robotics - Signal analysis - Transfer functions
Uncontrolled terms:Agilent - Dynamic signal analyzers - Fast steering mirror - Frequency characteristic - Frequency domains - Frequency-domain identification - Levenberg-Marquardt algorithm - Non-linear least squares
Classification code:716.1 Information Theory and Signal Processing - 731.1 Control Systems - 731.5 Robotics - 741.3 Optical Devices and Systems - 802.1 Chemical Plants and Equipment - 921 Mathematics
Numerical data indexing:Electric_Current 3.57e+04A
DOI:10.1109/CRC.2017.10
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<239>
Accession number:20181605019737
Title:Adaboost-based detection and segmentation of bioresorbable vascular scaffolds struts in IVOCT images
Authors:Lu, Yifeng (1, 2); Cao, Yihui (1, 2, 3); Jin, Qinhua (4); Chen, Yundai (4); Yin, Qinye (3); Li, Jianan (1); Zhu, Rui (1); Zhao, Wei (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China; (2) University of Chinese Academy of Sciences, Beijing, China; (3) School of the Electronic and Information Engineering, Xi'An Jiaotong University, Xi'an, China; (4) Department of Cardiology, Chinese PLA General Hospital, Beijing, China
Source title:Proceedings - International Conference on Image Processing, ICIP
Abbreviated source title:Proc. Int. Conf. Image Process. ICIP
Volume:2017-September
Part number:1 of 1
Issue title:2017 IEEE International Conference on Image Processing, ICIP 2017 - Proceedings
Issue date:July 2, 2017
Publication year:2017
Pages:4432-4436
Language:English
ISSN:15224880
ISBN-13:9781509021758
Document type:Conference article (CA)
Conference name:24th IEEE International Conference on Image Processing, ICIP 2017
Conference date:September 17, 2017 - September 20, 2017
Conference location:Beijing, China
Conference code:134723
Sponsor:The Institute of Electrical and Electronics Engineers Signal Processing Society
Publisher:IEEE Computer Society
Abstract:Bioresorbable Vascular Scaffolds (BVS) are the most promising type of stent in percutaneous coronary intervention. For accurate BVS struts apposition assessment, intravascular optical coherence tomography (IVOCT) is the state-of-the-art imaging modality. However, manual analysis for IVOCT frames is time consuming and labor intensive. In this paper, we propose an automatic method for BVS struts center and region detection based on Adaboost algorithm and Haar-like features. Then, dynamic programming algorithm is applied to segment the contour of BVS struts. Based on the segmentation results, the apposed or malapposed struts can be automatically distinguished. By comparing the manual and automatic detection and segmentation results, our method correctly detected and segmented 87.7% of 4029 BVS struts with 18.6% false positives. The average Dice's coefficient for the correctly detected struts was 0.78. In conclusion, the evaluation suggested that this method is accurate and robust for BVS struts detection and segmentation. 2017 IEEE.
Number of references:9
Main heading:Image segmentation
Controlled terms:Adaptive boosting - Dynamic programming - Feature extraction - Optical data processing - Optical tomography - Scaffolds - Struts
Uncontrolled terms:AdaBoost algorithm - Automatic Detection - Dynamic programming algorithm - Haar-like features - IVOCT - Percutaneous coronary intervention - Segmentation results - Vascular scaffolds
Classification code:405.1 Construction Equipment - 408.2 Structural Members and Shapes - 723 Computer Software, Data Handling and Applications - 723.2 Data Processing and Image Processing - 741.3 Optical Devices and Systems - 921.5 Optimization Techniques
Numerical data indexing:Percentage 1.86e+01%, Percentage 8.77e+01%
DOI:10.1109/ICIP.2017.8297120
Funding details:
Funding text:This work is supported by the Chinese Academy of Science and technology service network plan (Grant No. KFJ-SW-STS-185).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<240>
Accession number:20170203242082
Title:Mesoporous SiO
Authors:Zhang, Jing (1, 2, 5); Wang, Jing (1, 2, 5); Yang, Chunming (3); Jia, Hongbao (4); Cui, Xinmin (1, 2, 5); Zhao, Shichao (1, 5); Xu, Yao (2)
Author affiliation:(1) Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan; 030001, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai; 201204, China; (4) School of Science, University of Science and Technology Liaoning, Anshan; 114051, China; (5) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Xu, Yao(xuyao@opt.ac.cn)
Source title:Solar Energy Materials and Solar Cells
Abbreviated source title:Sol Energ Mater Sol Cells
Volume:162
Issue date:April 1, 2017
Publication year:2017
Pages:134-141
Language:English
ISSN:09270248
CODEN:SEMCEQ
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:Thermochromic vanadium dioxide (VO
Number of references:42
Main heading:Vanadium dioxide
Controlled terms:Coatings - Infrared devices - Mesoporous materials - Refractive index - Silica - Solar energy
Uncontrolled terms:Double layers - High refractive index - Mesoporous - Mesoporous structures - Smart windows - Thermo-chromic - Thermochromic coatings - Visible transmittance
Classification code:657.1 Solar Energy and Phenomena - 741.1 Light/Optics - 813.2 Coating Materials
Numerical data indexing:Percentage 1.02e+01%, Percentage 2.90e+01%, Percentage 6.76e+01%, Percentage 6.98e+01%, Percentage 7.89e+01%, Percentage 8.00e+01%
DOI:10.1016/j.solmat.2016.12.048
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<241>
Accession number:20182705409250
Title:Coherent optical adaptive technique improves the spatial resolution of STED microscopy in thick samples
Authors:Yan, Wei (1, 2); Yang, Yanlong (3); Tan, Yu (2); Chen, Xun (2); Li, Yang (2); Qu, Junle (1); Ye, Tong (2, 4)
Author affiliation:(1) Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen; 518060, China; (2) Department of Bioengineering and the COMSET, Clemson University, Clemson; SC; 29634, United States; (3) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi’an; 710119, China; (4) Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston; SC; 29425, United States
Source title:Photonics Research
Abbreviated source title:Photon. Res.
Volume:5
Issue:3
Issue date:June 1, 2017
Publication year:2017
Pages:176-181
Language:English
ISSN:23279125
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:Stimulated emission depletion (STED) microscopy is one of far-field optical microscopy techniques that can provide sub-diffraction spatial resolution. The spatial resolution of the STED microscopy is determined by the specially engineered beam profile of the depletion beam and its power. However, the beam profile of the depletion beam may be distorted due to aberrations of optical systems and inhomogeneity of a specimen’s optical properties, resulting in a compromised spatial resolution. The situation gets deteriorated when thick samples are imaged. In the worst case, the severe distortion of the depletion beam profile may cause complete loss of the super-resolution effect no matter how much depletion power is applied to specimens. Previously several adaptive optics approaches have been explored to compensate aberrations of systems and specimens. However, it is difficult to correct the complicated high-order optical aberrations of specimens. In this report, we demonstrate that the complicated distorted wavefront from a thick phantom sample can be measured by using the coherent optical adaptive technique. The full correction can effectively maintain and improve spatial resolution in imaging thick samples. 2017 Chinese Laser Press.
Number of references:23
Main heading:Adaptive optics
Controlled terms:Aberrations - Confocal microscopy - Fluorescence microscopy - Image resolution - Optical microscopy - Stimulated emission
Uncontrolled terms:Adaptive imaging - Adaptive technique - Distorted wavefront - Far-field optical microscopy - Scanning microscopy - Spatial resolution - STED microscopies - Stimulated emission depletion microscopy
Classification code:711 Electromagnetic Waves - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 931.4 Quantum Theory; Quantum Mechanics
DOI:10.1364/PRJ.5.000176
Funding details: Number: 2015KGJHZ002, Acronym: -, Sponsor: Provincial Foundation for Excellent Young Talents of Colleges and Universities of Anhui Province;Number: 1539034, Acronym: -, Sponsor: National Aerospace Science Foundation of China;Number: 2015CB352005, Acronym: -, Sponsor: National Basic Research Program of China (973 Program);Number: 2014A030312008, Acronym: -, Sponsor: Natural Science Foundation of Guangdong Province;Number: 61505121, Acronym: -, Sponsor: National Natural Science Foundation of China;Number: 2014M55226, Acronym: -, Sponsor: China Postdoctoral Science Foundation;Number: JCYJ20150930104948169, Acronym: -, Sponsor: Shenzhen Fundamental Research and Discipline Layout project;Number: -, Acronym: -, Sponsor: National Natural Science Foundation of China;Number: P20GM103499, Acronym: -, Sponsor: National Institute of General Medical Sciences;
Funding text:National Basic Research Program of China (2015CB352005); National Natural Science Foundation of China (NSFC) (61378091, 61404123, 61505118, 61505121, 61525503); China Postdoctoral Science Foundation (2014M55226); Natural Science Foundation of Guangdong Province (2014A030312008); Hong Kong, Macao and Taiwan cooperation innovation platform & major projects of international cooperation in Colleges and Universities in Guangdong Province (2015KGJHZ002); National Institute of General Medical Sciences (NIGMS) (P20GM103499, R21GM104683); National Science Foundation (NSF) (1539034); Shenzhen Basic Research Project (JCYJ20150930104948169, GJHZ20160226202139185, JCYJ20160328144746940).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<242>
Accession number:20173604133858
Title:Fast polarimetric dehazing method for visibility enhancement in HSI colour space
Authors:Zhang, Wenfei (1, 2, 3); Liang, Jian (1, 3); Ren, Liyong (1); Ju, Haijuan (1, 3); Bai, Zhaofeng (1); Wu, Zhaoxin (2)
Author affiliation:(1) Research Department of Information Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Department of Electronics Science and Technology, School of Electronic and Information Engineering, Xi'An Jiaotong University, Xi'an; 710049, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Journal of Optics (United Kingdom)
Abbreviated source title:J. Opt.
Volume:19
Issue:9
Issue date:August 22, 2017
Publication year:2017
Article number:095606
Language:English
ISSN:20408978
E-ISSN:20408986
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:Image haze removal has attracted much attention in optics and computer vision fields in recent years due to its wide applications. In particular, the fast and real-time dehazing methods are of significance. In this paper, we propose a fast dehazing method in hue, saturation and intensity colour space based on the polarimetric imaging technique. We implement the polarimetric dehazing method in the intensity channel, and the colour distortion of the image is corrected using the white patch retinex method. This method not only reserves the detailed information restoration capacity, but also improves the efficiency of the polarimetric dehazing method. Comparison studies with state of the art methods demonstrate that the proposed method obtains equal or better quality results and moreover the implementation is much faster. The proposed method is promising in real-time image haze removal and video haze removal applications. 2017 IOP Publishing Ltd.
Number of references:27
Main heading:Demulsification
Controlled terms:Color - Polarimeters
Uncontrolled terms:Colour spaces - Comparison study - Haze removal - Polarimetric imaging - Real time - Real time images - Retinex method - State-of-the-art methods
Classification code:741.1 Light/Optics - 802.3 Chemical Operations - 941.3 Optical Instruments
DOI:10.1088/2040-8986/aa7f39
Funding details: Number: 61535015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61505246, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275149, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under grant 61505246, 61275149 and 61535015.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<243>
Accession number:20170903385458
Title:Self-weighted spectral clustering with parameter-free constraint
Authors:Zhang, Rui (1); Nie, Feiping (1); Li, Xuelong (2)
Author affiliation:(1) School of computer science and Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an; Shaanxi; 710072, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China
Corresponding author:Nie, Feiping(feipingnie@gmail.com)
Source title:Neurocomputing
Abbreviated source title:Neurocomputing
Volume:241
Issue date:June 7, 2017
Publication year:2017
Pages:164-170
Language:English
ISSN:09252312
E-ISSN:18728286
CODEN:NRCGEO
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:The constrained spectral clustering (or known as the semi-supervised spectral clustering) focuses on enhancing the clustering capability by utilizing the side information. In this paper, a novel constrained spectral clustering method is proposed based on deriving a sparse parameter-free similarity. Different from other works, the proposed method transforms the given pairwise constraints into the intrinsic graph similarity and the penalty graph similarity respectively instead of incorporating them into one single similarity. Besides, the optimal weight can be automatically achieved to balance the graph optimization problems between the intrinsic graph and the penalty graph. Equipped with a general framework of efficiently unraveling the bi-objective optimization, the proposed method could obtain both ratio cut and normalized cut clusterings via updating the weighted Laplacian matrix until convergence. Moreover, the proposed method is equivalent to the spectral clustering, when no side information is provided. Consequently, the effectiveness and the superiority of the proposed method are further verified both analytically and empirically. 2017 Elsevier B.V.
Number of references:24
Main heading:Clustering algorithms
Controlled terms:Constrained optimization - Matrix algebra
Uncontrolled terms:Bi-objective optimization - Constrained spectral clustering - Graph optimization problems - Pairwise constraints - Parameter-free similarity - Side information - Spectral clustering - Weighted laplacian
Classification code:903.1 Information Sources and Analysis - 921.1 Algebra - 961 Systems Science
DOI:10.1016/j.neucom.2017.01.085
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<244>
Accession number:20164102887380
Title:Synthesis and spectroscopy of high concentration dysprosium doped GeS
Authors:Wang, Zixuan (1); Guo, Haitao (2); Xiao, Xusheng (2); Xu, Yantao (2); Cui, Xiaoxia (2); Lu, Min (2); Peng, Bo (2); Yang, Anping (3); Yang, Zhiyong (3); Gu, Shaoxuan (1)
Author affiliation:(1) State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology), Wuhan; Hubei; 430070, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi'an; Shaanxi; 710119, China; (3) Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou; Jiangsu; 221116, China
Corresponding author:Guo, Haitao(guoht_001@opt.ac.cn)
Source title:Journal of Alloys and Compounds
Abbreviated source title:J Alloys Compd
Volume:692
Issue date:2017
Publication year:2017
Pages:1010-1017
Language:English
ISSN:09258388
CODEN:JALCEU
Document type:Journal article (JA)
Publisher:Elsevier Ltd
Abstract:0.2%–3% weight of Dy3+ions doped 64GeS
Number of references:33
Main heading:Glass
Controlled terms:Dysprosium - Germanium compounds - Metal ions - Rare earths - Spectroscopy - Spectrum analysis
Uncontrolled terms:Chalcohalide glass - Concentration quenching - Emission properties - Fiber drawing - Judd-Ofelt - Rare earth ions - Spectroscopic property - Stimulated emission cross section
Classification code:531.1 Metallurgy - 547.2 Rare Earth Metals - 804.2 Inorganic Compounds - 812.3 Glass
Numerical data indexing:Percentage 6.00e-01%
DOI:10.1016/j.jallcom.2016.09.085
Funding details: Number: SYSJJ2016-04, Acronym: WUT, Sponsor: Wuhan University of Technology;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: KLALMD-2015-08, Acronym: JSNU, Sponsor: Jiangsu Normal University;Number: 2015JQ5141, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 51172169, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61177084, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61475189, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61405080, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was financially supported by the West Light Foundation from Chinese Academy of Sciences (CAS) of China, the National Natural Science Foundation of China ( 61177084 , 61475189 , 61405080 and 51172169 ) and the Natural Science Basic Research Project in Shaanxi Province ( 2015JQ5141 ). The work was also funded by the State Key Laboratory of Silicate Materials for Architectures ( Wuhan University of Technology ) ( SYSJJ2016-04 ) and Jiangsu Key Laboratory of Advanced Laser Materials and Devices ( Jiangsu Normal University ) ( KLALMD-2015-08 ).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<245>
Accession number:20172703897900
Title:Magneto-optical effects of Ge-Ga-Sb(In)-S chalcogenide glasses with diamagnetic responses
Authors:Chen, Gang (1, 2); Xu, Yantao (1, 3); Guo, Haitao (1); Cui, Xiaoxia (1); Wang, Pengfei (1); Lu, Min (1); Xiao, Xusheng (1, 3); Guo, Quan (1, 3); Peng, Bo (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi'an; Shaanxi, China; (2) College of Material Science and Engineering, Changchun University of Science and Technology, Changchun, China; (3) University of Chinese Academy of Sciences (UCAS), Beijing, China
Corresponding author:Guo, Haitao(guoht_001@opt.ac.cn)
Source title:Journal of the American Ceramic Society
Abbreviated source title:J Am Ceram Soc
Volume:100
Issue:7
Issue date:July 1, 2017
Publication year:2017
Pages:2914-2920
Language:English
ISSN:00027820
E-ISSN:15512916
CODEN:JACTAW
Document type:Journal article (JA)
Publisher:Blackwell Publishing Inc.
Abstract:The Faraday effects of Ge-Ga-Sb(In)-S serial chalcogenide glasses were investigated at the wavelengths of 635, 808, 980, and 1319 nm, respectively. The compositional dependences were analyzed and associated influencing factors including the absorption edge, the concentration of Sb3+/In3+ions, and the wavelength dispersion of refraction index were discussed. 80GeS
Number of references:30
Main heading:Glass
Controlled terms:Chalcogenides - Faraday effect - Refractive index
Uncontrolled terms:Absorption edges - Chalcogenide glass - Compositional dependence - Diamagnetic response - Optical materials/properties - Polarizabilities - Refraction index - Wavelength dispersion
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 741.1 Light/Optics - 804.2 Inorganic Compounds - 812.3 Glass
Numerical data indexing:Size 1.32e-06m
DOI:10.1111/jace.14808
Funding details: Number: 2014JQ8345, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 2015JQ5141, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61405240, Acronym: -, Sponsor: National Aerospace Science Foundation of China;Number: 61475189, Acronym: -, Sponsor: National Aerospace Science Foundation of China;Number: 61405241, Acronym: -, Sponsor: National Aerospace Science Foundation of China;Number: -, Acronym: CACMS, Sponsor: China Academy of Chinese Medical Sciences;
Funding text:This work was financially supported by the National Nature Science Foundation of China (Grant Nos. 61405241, 61475189, and 61405240) and the West Light Foundation from Chinese Academy of Science of China (CAS) and Natural Science Basic Research Project in Shaanxi Province (Grant Nos. 2014JQ8345 and 2015JQ5141).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<246>
Accession number:20172803903575
Title:Key Fabrication Technology of Polymer Photonic Crystal Fiber for Terahertz Transmission
Authors:Chen, Qi (1, 2); Kong, De-Peng (3); Miao, Jing (3); He, Xiao-Yang (1, 2); Zhang, Jian (1, 2); Wang, Li-Li (3)
Author affiliation:(1) Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang; Sichuan; 621999, China; (2) Microsystem & Terahertz Research Center, China Academy of Engineering Physics, Mianyang; Sichuan; 621999, China; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Kong, De-Peng(kongdp@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:4
Issue date:April 1, 2017
Publication year:2017
Article number:0406001
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:The technologies of fabricating polymer photonics crystal fiber to suit the application needs of terahertz transmission were studied, which were related to material selecting, fiber preform fabrication and fiber drawing. According to the analyzation of optical polymers' properties and the experimental verification, ZEONEX has low absorption of less than 3 cm-1in Terahertz waves, low water absorption of less than 0.01%, high glass transition tempreture and decomposition temperature of 136℃ and 420℃ respectively. As for fiber preform fabrication and drawing, the model system was improved based on injection moulding, and drawing technology of Pascal level pressure auto-control was initially invented. The controlled value oscillations is no more than 1.5 Pa in the range of 10~200 Pa. Therefore the preform quality and reliability are promoted and fiber microstructure is effectively controlled. With the proposed technology it is hopeful of producing high air filling factor polymer photonics crystal fiber. 2017, Science Press. All right reserved.
Number of references:20
Main heading:Optical fiber fabrication
Controlled terms:Crystal whiskers - Glass transition - Injection molding - Optical fibers - Photonic crystal fibers - Plastic optical fibers - Polymers - Preforming - Quality control - Single mode fibers - Terahertz waves - Water absorption
Uncontrolled terms:Air filling factors - Decomposition temperature - Experimental verification - Fabrication Technologies - Fiber microstructures - Polymer photonic crystals - Preform fabrication - Terahertz transmission
Classification code:711 Electromagnetic Waves - 741.1.2 Fiber Optics - 802.3 Chemical Operations - 815.1 Polymeric Materials - 913.3 Quality Assurance and Control - 933.1.1 Crystal Lattice
Numerical data indexing:Percentage 1.00e-02%, Pressure 1.00e+01Pa to 2.00e+02Pa, Pressure 1.50e+00Pa
DOI:10.3788/gzxb20174604.0406001
Funding details: Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61275106, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11504416, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: CAEPTHZ201307, Acronym: -, Sponsor: China Academy of Engineering Physics THz Science and Technology Foundation;
Funding text:The National Natural Science Foundation of China (Nos. 11504416, 61275106), the CAEP THz Science and Technology Foundation (No. CAEPTHZ201307), CAS "Light of West China" Program.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<247>
Accession number:20172903943120
Title:Deconvolution of spectral power distribution of high-power laser diode arrays (Open Access)
Authors:Zhang, Pu (1); Kim, Dae-Suk (2); Han, Bongtae (2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (2) Mechanical Engineering Department, University of Maryland, College Park; MD; 20742, United States
Corresponding author:Han, Bongtae(bthan@umd.edu)
Source title:Applied Optics
Abbreviated source title:Appl. Opt.
Volume:56
Issue:20
Issue date:July 10, 2017
Publication year:2017
Pages:5590-5598
Language:English
ISSN:1559128X
E-ISSN:21553165
CODEN:APOPAI
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:A novel method is proposed to predict the spectral power distributions (SPDs) of individual emitters in a highpower laser diode (LD) array. The proposed method deconvolutes the SPD of an LD array by taking into account the thermal cross-talk effect as well as the current competition effect. A complete analytical expression to deconvolute the SPD of an LD array is described. The expression contains four key parameters that are to be measured experimentally: (1) the normalized SPD of the central emitter, (2) the temperature coefficient of wavelength, (3) the current competition constant, and (4) the maximum power of the center emitter. The method is implemented with a commercial water-cooled high-power LD array. The SPD of the LD array predicted from the SPDs of individual emitters are compared with the experimentally measured SPD of the LD array. The results show excellent agreement in both shape and magnitude, which corroborates the validity of the proposed method. 2017 Optical Society of America.
Number of references:28
Main heading:High power lasers
Controlled terms:Molecular physics - Optics
Uncontrolled terms:Analytical expressions - Commercial waters - Competition effects - High power - High power laser diode arrays - Maximum power - Spectral power distribution - Temperature coefficient
Classification code:741.1 Light/Optics - 744.1 Lasers, General - 931.3 Atomic and Molecular Physics
DOI:10.1364/AO.56.005590
Funding details: Number: -, Acronym: UMD, Sponsor: University of Maryland;Number: -, Acronym: CSC, Sponsor: China Scholarship Council;Number: 201504910345, Acronym: CSC, Sponsor: China Scholarship Council;Number: FA8650-15-1-7526, Acronym: DARPA, Sponsor: Defense Advanced Research Projects Agency;Number: -, Acronym: DARPA, Sponsor: Defense Advanced Research Projects Agency;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61404172, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61334010, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Sponsorship by the DARPA is greatly appreciated and graciously acknowledged. The technical contribution of the first author was made during his stay at the University of Maryland as a visiting scholar. Financial support for his stay by the CSC and the NSFC is also appreciated and graciously acknowledged. Defense Advanced Research Projects Agency (DARPA) (FA8650-15-1-7526); China Scholarship Council (CSC) (201504910345); National Natural Science Foundation of China (NSFC) (61334010, 61404172).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<248>
Accession number:20172903954496
Title:Anchor-based group detection in crowd scenes
Authors:Chen, Mulin (1); Wang, Qi (1); Li, Xuelong (2)
Author affiliation:(1) School of Computer Science and Center, OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Shaanxi; 710119, China
Corresponding author:Wang, Qi
Source title:ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Abbreviated source title:ICASSP IEEE Int Conf Acoust Speech Signal Process Proc
Part number:1 of 1
Issue title:2017 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2017 - Proceedings
Issue date:June 16, 2017
Publication year:2017
Pages:1378-1382
Article number:7952382
Language:English
ISSN:15206149
CODEN:IPRODJ
ISBN-13:9781509041176
Document type:Conference article (CA)
Conference name:2017 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2017
Conference date:March 5, 2017 - March 9, 2017
Conference location:New Orleans, LA, United states
Conference code:128382
Sponsor:The Institute of Electrical and Electronics Engineers Signal Processing Society
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Group detection aims to classify pedestrians into categories according to their motion dynamics. It's fundamental for analyzing crowd behaviors and involves a wide range of applications. In this paper, we propose a Anchor-based Manifold Ranking (AMR) method to detect groups in crowd scenes. Our main contributions are threefold: (1) the topological relationship of individuals are effectively investigated with a manifold ranking method; (2) global consistency in crowds are accurately recognized by a coherent merging strategy; (3) the number of groups is decided automatically based on the similarity graph of individuals. Experimental results show that the proposed framework is competitive against the state-of-the-art methods. ？ 2017 IEEE.
Number of references:23
DOI:10.1109/ICASSP.2017.7952382
Funding details: Number: 2015JM6264, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 61379094, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is supported by the National Natural Science Foundation of China under Grant 61379094 and Natural Science Foundation Research Project of Shaanxi Province under Grant 2015JM6264.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<249>
Accession number:20170403269492
Title:In situ measurement of the topological charge of a perfect vortex using the phase shift method
Authors:Ma, Haixiang (1); Li, Xinzhong (1, 2); Tai, Yuping (3); Li, Hehe (1); Wang, Jingge (1); Tang, Miaomiao (1); Wang, Yishan (2); Tang, Jie (2); Nie, Zhaogang (4)
Author affiliation:(1) School of Physics and Engineering, Henan University of Science and Technology, Luoyang; 471003, China; (2) State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) School of Chemical Engineering and Pharmaceutics, Henan University of Science and Technology, Luoyang; 471003, China; (4) School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou; 510006, China
Corresponding author:Li, Xinzhong(xzli@haust.edu.cn)
Source title:Optics Letters
Abbreviated source title:Opt. Lett.
Volume:42
Issue:1
Issue date:January 1, 2017
Publication year:2017
Pages:135-138
Language:English
ISSN:01469592
E-ISSN:15394794
CODEN:OPLEDP
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We propose a method to determine the topological charge (TC) of a perfect vortex. With the phase shift technique, the perfect vortex and its conjugate beam exactly overlap and interfere. Consequently, the TC of a perfect vortex is determined by counting the number of interference fringes. This proposed method enables in situ determination of the TC of the perfect vortex without the need for additional optical elements, and it is immune to environmental vibration and parasitic interference. 2016 Optical Society of America.
Number of references:46
Main heading:Vortex flow
Controlled terms:Topology
Uncontrolled terms:Additional optical elements - Conjugate beams - Environmental vibrations - In-situ measurement - Interference fringe - Phase shift techniques - Phase-shift method - Topological charges
Classification code:631.1 Fluid Flow, General - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
DOI:10.1364/OL.42.000135
Funding details: Number: 2011YQ030113, Acronym: -, Sponsor: -;Number: SKLST201203, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61205086, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11504091, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC) (11504091, 61205086); Open Research Fund of State Key Laboratory of Transient Optics and Photonics; Chinese Academy of Sciences (CAS) (SKLST201203); National Major Scientific Instruments and Equipment Development Special Funds (2011YQ030113).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<250>
Accession number:20171103434545
Title:In-situ growth amorphous carbon nanotube on silicon particles as lithium-ion battery anode materials
Authors:Zhao, Tingkai (1); She, Shengfei (1, 2); Ji, Xianglin (1); Jin, Wenbo (1); Dang, Alei (1); Li, Hao (1); Li, Tiehu (1); Shang, Songmin (3); Zhou, Zhongfu (4)
Author affiliation:(1) State Key Laboratory of Solidification Processing, Shaanxi Engineering Laboratory for Graphene New Carbon Materials and Applications, Northwestern Polytechnical University, Xi'an; 710072, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics CAS, Xi'an; 710119, China; (3) Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Kowloon, Hong Kong; (4) Department of Physics, Aberystwyth University, Aberystwyth; SY23 3FL, United Kingdom
Corresponding author:Zhao, Tingkai(ztk-xjtu@163.com)
Source title:Journal of Alloys and Compounds
Abbreviated source title:J Alloys Compd
Volume:708
Issue date:2017
Publication year:2017
Pages:500-507
Language:English
ISSN:09258388
CODEN:JALCEU
Document type:Journal article (JA)
Publisher:Elsevier Ltd
Abstract:A novel silicon core/amorphous carbon nanotube (ACNT) shell composite that can be used as lithium-ion batteries anode material was in-situ synthesized in the chemical vapor deposition (CVD) growth process. The hypothesized core/shell structure was evidenced by SEM/TEM/XRD, suggesting that the ACNTs composed of carbon clusters with short-range order and long-range disorder were successfully deposited onto the surface of the silicon particles. This Si/ACNT composite delivered a high capacity of 1496 mAh g？1at a current density of 100 mA g？1, and a superior cycling stability with 80% capacity retention after 300 cycles. This observed specific capacity improvement of Si/ACNT composite is likely attributed to the formed three-dimensional conductive networks between silicon particles and interwoven ACNTs in the composite. 2017 Elsevier B.V.
Number of references:35
Main heading:Amorphous silicon
Controlled terms:Amorphous carbon - Anodes - Carbon nanotubes - Chemical vapor deposition - Electrochemical properties - Electron microscopy - Lithium-ion batteries - Silicon - X ray diffraction - Yarn
Uncontrolled terms:Chemical vapor depositions (CVD) - Conductive networks - Core/shell structure - In-situ synthesized - Lithium-ion battery anodes - Short range ordering - Silicon cores - Specific capacities
Classification code:549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 714.1 Electron Tubes - 761 Nanotechnology - 801.4.1 Electrochemistry - 802.2 Chemical Reactions - 819.4 Fiber Products - 933.2 Amorphous Solids
Numerical data indexing:Percentage 8.00e+01%
DOI:10.1016/j.jallcom.2017.03.019
Funding details: Number: 2014ZF53074, Acronym: -, Sponsor: Aeronautical Science Foundation of China;Number: Z20160011, Acronym: NPU, Sponsor: Northwestern Polytechnical University;Number: 2016JQ5108, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 51672221, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 51572221, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the Natural Science Foundation of China (51572221, 51672221), the China Aeronautical Science Fund (2014ZF53074), the Natural Science Foundation of Shaanxi Province (2016JQ5108) and the Graduate Innovation Seed Fund of Northwestern Polytechnical University (Z20160011).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<251>
Accession number:20170903403356
Title:Emotional textile image classification based on cross-domain convolutional sparse autoencoders with feature selection
Authors:Li, Zuhe (1, 2); Fan, Yangyu (1); Liu, Weihua (3); Yu, Zeqi (2); Wang, Fengqin (2)
Author affiliation:(1) Northwestern Polytechnical University, School of Electronics and Information, Xi'an, China; (2) Zhengzhou University of Light Industry, School of Computer and Communication Engineering, Zhengzhou, China; (3) Chinese Academy of Sciences, Xi'An Institute of Optics and Precision Mechanics, Xi'an, China
Corresponding author:Li, Zuhe(zuheli@126.com)
Source title:Journal of Electronic Imaging
Abbreviated source title:J. Electron. Imaging
Volume:26
Issue:1
Issue date:January 1, 2017
Publication year:2017
Article number:013022
Language:English
ISSN:10179909
E-ISSN:1560229X
CODEN:JEIME5
Document type:Journal article (JA)
Publisher:SPIE
Abstract:We aim to apply sparse autoencoder-based unsupervised feature learning to emotional semantic analysis for textile images. To tackle the problem of limited training data, we present a cross-domain feature learning scheme for emotional textile image classification using convolutional autoencoders. We further propose a correlation-analysis-based feature selection method for the weights learned by sparse autoencoders to reduce the number of features extracted from large size images. First, we randomly collect image patches on an unlabeled image dataset in the source domain and learn local features with a sparse autoencoder. We then conduct feature selection according to the correlation between different weight vectors corresponding to the autoencoder's hidden units. We finally adopt a convolutional neural network including a pooling layer to obtain global feature activations of textile images in the target domain and send these global feature vectors into logistic regression models for emotional image classification. The cross-domain unsupervised feature learning method achieves 65% to 78% average accuracy in the cross-validation experiments corresponding to eight emotional categories and performs better than conventional methods. Feature selection can reduce the computational cost of global feature extraction by about 50% while improving classification performance. 2017 SPIE and IS&T.
Number of references:41
Main heading:Classification (of information)
Controlled terms:Convolution - Feature extraction - Image analysis - Image classification - Learning systems - Neural networks - Regression analysis - Semantics - Textiles
Uncontrolled terms:Auto encoders - Classification performance - Convolutional neural network - Domain adaptation - Feature selection methods - Logistic regression models - Textile images - Unsupervised feature learning
Classification code:716.1 Information Theory and Signal Processing - 819 Synthetic and Natural Fibers; Textile Technology - 922.2 Mathematical Statistics
Numerical data indexing:Percentage 5.00e+01%, Percentage 6.50e+01% to 7.80e+01%
DOI:10.1117/1.JEI.26.1.013022
Funding details: Number: 2013SZS15-K02, Acronym: -, Sponsor: -;Number: 61501391, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61601411, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 15A510035, Acronym: -, Sponsor: Natural Science Foundation of Henan Province;
Funding text:This work was supported by the National Natural Science Foundation of China under Grant 61601411 and 61501391, the Science and Technology Innovation Engineering Program for Shaanxi Provincial Key Laboratories under Grant 2013SZS15-K02, and the Key Science Foundation of Henan province under Grant 15A510035.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<252>
Accession number:20172903958195
Title:Room-Temperature Processed Nb
Authors:Ling, Xufeng (1); Yuan, Jianyu (1); Liu, Dongyang (1); Wang, Yongjie (1); Zhang, Yannan (1); Chen, Si (1); Wu, Haihua (1); Jin, Feng (3); Wu, Fupeng (1); Shi, Guozheng (1); Tang, Xun (1); Zheng, Jiawei (1); Liu, Shengzhong (2); Liu, Zhike (2); Ma, Wanli (1)
Author affiliation:(1) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou; 215123, China; (2) Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an; 710119, China; (3) Shanghai Ultra-Precision Optical Manufacturing Engineering Research Center, Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Department of Optical Science and Engineering, Fudan University, Shanghai; 200433, China
Corresponding author:Liu, Zhike(zhike2015@snnu.edu.cn)
Source title:ACS Applied Materials and Interfaces
Abbreviated source title:ACS Appl. Mater. Interfaces
Volume:9
Issue:27
Issue date:July 12, 2017
Publication year:2017
Pages:23181-23188
Language:English
ISSN:19448244
E-ISSN:19448252
Document type:Journal article (JA)
Publisher:American Chemical Society
Abstract:In this work, we demonstrate high-efficiency planar perovskite solar cells (PSCs), using room-temperature sputtered niobium oxide (Nb
Number of references:59
Main heading:Niobium oxide
Controlled terms:Electrons - Energy conservation - Hall mobility - Interfaces (materials) - Perovskite - Perovskite solar cells - Sintering - Solar cells - Temperature - Titanium dioxide
Uncontrolled terms:Electron transporting layer - flexible - Hall effect measurement - Kelvin probe force microscopy - Low- temperature process - Nb2O5 - Power conversion efficiencies - Room temperature processing
Classification code:482.2 Minerals - 525.2 Energy Conservation - 641.1 Thermodynamics - 702.3 Solar Cells - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 933.3 Electronic Structure of Solids - 951 Materials Science
Numerical data indexing:Electron_Volt -4.02e+00eV, Percentage 1.21e+01%, Percentage 1.71e+01%, Percentage 1.72e+01%, Temperature 7.73e+02K
DOI:10.1021/acsami.7b05113
Funding details: Number: 2016YFA0202402, Acronym: -, Sponsor: -;Number: -, Acronym: -, Sponsor: Soochow University;Number: 61222401, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61674111, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The author thanks the Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University. This work was supported by the 111 projects, National Key Research Projects (Grant No. 2016YFA0202402), the National Natural Science Foundation of China (Grant Nos. 61222401 and 61674111). And we also acknowledge the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<253>
Accession number:20171103452502
Title:4.62 kW excellent beam quality laser output with a low-loss Yb/Ce co-doped fiber fabricated by chelate gas phase deposition technique
Authors:Zheng, Jinkun (1, 2); Zhao, Wei (1); Zhao, Baoyin (1); Hou, Chaoqi (1); Li, Zhe (1); Li, Gang (1); Gao, Qi (1); Ju, Pei (1); Gao, Wei (1); She, Shengfei (1); Wu, Peng (2); Li, Weinan (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Zhao, Baoyin(joseph.zhao@opt.ac.cn)
Source title:Optical Materials Express
Abbreviated source title:Opt. Mater. Express
Volume:7
Issue:4
Issue date:2017
Publication year:2017
Pages:1259-1266
Language:English
E-ISSN:21593930
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:A high-power Yb/Ce co-doped double-clad fiber with low optical loss was successfully fabricated by an optimized chelate gas phase deposition technique. It exhibits a nearly homogenous distribution of Al, Ce and Yb ions in the fiber core region, which reduce the clustering. The core attenuation at 1080 nm and 1383 nm are 12 dB/km and 46 dB/km, respectively, indicating high optical performance with a low optical loss. The amplifier stage with this fiber delivers 4.62 kW excellent beam quality (M2= 1.67) laser output with a slope efficiency of 80.3%. The experimental results show that the chelate gas phase deposition technique is a prospective method to fabricate a Yb/Ce co-doped fiber with low optical loss, which is beneficial for acquiring multi-kilowatt continuous-wave fiber laser with excellent beam quality. 2017 Optical Society of America.
Number of references:42
Main heading:Fiber amplifiers
Controlled terms:Chelation - Deposition - Fabrication - Fiber lasers - Fibers - Gases - Optical losses
Uncontrolled terms:Continuous Wave - Double clad fibers - Fiber cores - Gas-phase deposition techniques - Laser output - Nearly homogenous - Optical performance - Slope efficiencies
Classification code:741 Light, Optics and Optical Devices - 744.4 Solid State Lasers - 802.2 Chemical Reactions - 802.3 Chemical Operations
Numerical data indexing:Percentage 8.03e+01%, Power 4.62e+03W, Size 1.08e-06m, Size 1.38e-06m
DOI:10.1364/OME.7.001259
Funding details: Number: 61675229, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61138007, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was financially supported by the National Natural Science Foundation of China (NSFC) (No. 61675229, No. 61138007).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<254>
Accession number:20172703894546
Title:Dimensionality Reduction by Spatial-Spectral Preservation in Selected Bands
Authors:Zheng, Xiangtao (1); Yuan, Yuan (1); Lu, Xiaoqiang (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Center for Optical Imagery Analysis and Learning (OPTIMAL), Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Lu, Xiaoqiang
Source title:IEEE Transactions on Geoscience and Remote Sensing
Abbreviated source title:IEEE Trans Geosci Remote Sens
Volume:55
Issue:9
Issue date:September 2017
Publication year:2017
Pages:5185-5197
Article number:7954794
Language:English
ISSN:01962892
CODEN:IGRSD2
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Dimensionality reduction (DR) has attracted extensive attention since it provides discriminative information of hyperspectral images (HSI) and reduces the computational burden. Though DR has gained rapid development in recent years, it is difficult to achieve higher classification accuracy while preserving the relevant original information of the spectral bands. To relieve this limitation, in this paper, a different DR framework is proposed to perform feature extraction on the selected bands. The proposed method uses determinantal point process to select the representative bands and to preserve the relevant original information of the spectral bands. The performance of classification is further improved by performing multiple Laplacian eigenmaps (LEs) on the selected bands. Different from the traditional LEs, multiple Laplacian matrices in this paper are defined by encoding spatial-spectral proximity on each band. A common low-dimensional representation is generated to capture the joint manifold structure from multiple Laplacian matrices. Experimental results on three real-world HSIs demonstrate that the proposed framework can lead to a significant advancement in HSI classification compared with the state-of-the-art methods. 2017 IEEE.
Number of references:60
Main heading:Classification (of information)
Controlled terms:Laplace transforms - Spectroscopy
Uncontrolled terms:Band selection - Classification accuracy - Computational burden - Dimensionality reduction - Laplacian eigenmaps - Low-dimensional representation - Point process - State-of-the-art methods
Classification code:716.1 Information Theory and Signal Processing - 921.3 Mathematical Transformations
DOI:10.1109/TGRS.2017.2703598
Funding details: Number: LSIT201408, Acronym: -, Sponsor: -;Number: QYZDB-SSW-JSC015, Acronym: -, Sponsor: -;Number: 2013CB336500, Acronym: -, Sponsor: -;Number: KGZD-EW-T03, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 60632018, Acronym: -, Sponsor: -;Number: 61232010, Acronym: -, Sponsor: -;Number: 61472413, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Basic Research Program of China (Youth 973 Program) under Grant 2013CB336500, in part by the State Key Program of National Natural Science of China under Grant 60632018, in part by the State Key Program of National Natural Science of China under Grant 61232010, in part by the National Natural Science Foundation of China under Grant 61472413, in part by the Key Research Program of the Chinese Academy of Sciences under Grant KGZD-EW-T03, in part by the Open Research Fund of the Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences, under Grant LSIT201408, and in part by the Young Top-Notch Talent Program of Chinese Academy of Sciences under Grant QYZDB-SSW-JSC015.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<255>
Accession number:20171103436784
Title:Research on polarized optical properties of space target material
Authors:Yuan, Bo (1, 2); Gao, Jing (1); Yang, Fan-Chao (1, 2); Hu, Bing-Liang (1); Gao, Xiao-Hui (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an; 710119, China; (2) Graduate School of the Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Yang, Fan-Chao(frankyang1987@126.com)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:1
Issue date:January 1, 2017
Publication year:2017
Article number:0116003
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Based on the bidirectional reflectance model, the polarization characteristics and spectral radiosities of four space target samples, such as carbon fiber, carburizing film, F46 and OSR, were measured. By calculating the Stokes parameters of the samples, the degrees of linear polarization and polarization orientations under multiple observing angles were obtained and recorded. The statistical results show that, the different samples have great differences in average and variance of the degree of linear polarization and Orientation. The analysis of the difference between the average and variance of samples can improve the effects in detecting and identifying simples efficiently and solve the “Same object with different spectrums” and “Foreign body in the same spectrum” problems occurred in spectroscopic techniques. The polarization property provides more optical information for remote sensing, which is an effective and reliable method for target recognition. 2017, Science Press. All right reserved.
Number of references:13
Page count:8
Main heading:Polarization
Controlled terms:Carbon fibers - Crystal orientation - Optical properties - Remote sensing - Spectroscopic analysis
Uncontrolled terms:Average values - Degree of linear polarization - Spectral polarization - Stokes parameters - Variance
Classification code:741.1 Light/Optics - 801 Chemistry - 804 Chemical Products Generally - 933.1.1 Crystal Lattice
DOI:10.3788/gzxb20174601.0116003
Funding details: Number: 2015PFA10140, Acronym: -, Sponsor: -;Number: 61405239, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11327303, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61501456, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11573058, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The National Natural Science Foundation of China (Nos. 11573058, 61405239, 11327303, 61501456), the International S&T Cooperation Program of China(No.2015PFA10140).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<256>
Accession number:20170703341448
Title:Discovering diverse subset for unsupervised hyperspectral band selection
Authors:Yuan, Yuan (1); Zheng, Xiangtao (1); Lu, Xiaoqiang (1)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transit Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Source title:IEEE Transactions on Image Processing
Abbreviated source title:IEEE Trans Image Process
Volume:26
Issue:1
Issue date:January 2017
Publication year:2017
Pages:51-64
Article number:7590041
Language:English
ISSN:10577149
CODEN:IIPRE4
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Band selection, as a special case of the feature selection problem, tries to remove redundant bands and select a few important bands to represent the whole image cube. This has attracted much attention, since the selected bands provide discriminative information for further applications and reduce the computational burden. Though hyperspectral band selection has gained rapid development in recent years, it is still a challenging task because of the following requirements: 1) an effective model can capture the underlying relations between different high-dimensional spectral bands; 2) a fast and robust measure function can adapt to general hyperspectral tasks; and 3) an efficient search strategy can find the desired selected bands in reasonable computational time. To satisfy these requirements, a multigraph determinantal point process (MDPP) model is proposed to capture the full structure between different bands and efficiently find the optimal band subset in extensive hyperspectral applications. There are three main contributions: 1) graphical model is naturally transferred to address band selection problem by the proposed MDPP; 2) multiple graphs are designed to capture the intrinsic relationships between hyperspectral bands; and 3) mixture DPP is proposed to model the multiple dependencies in the proposed multiple graphs, and offers an efficient search strategy to select the optimal bands. To verify the superiority of the proposed method, experiments have been conducted on three hyperspectral applications, such as hyperspectral classification, anomaly detection, and target detection. The reliability of the proposed method in generic hyperspectral tasks is experimentally proved on four real-world hyperspectral data sets. 1992-2012 IEEE.
Number of references:74
Main heading:Radar target recognition
Controlled terms:Hyperspectral imaging - Spectroscopy - Speech recognition
Uncontrolled terms:Anomaly detection - Band selection - Computational burden - Feature selection problem - Hyper-spectral classification - Multiple dependencies - multiple graphs - Point process
Classification code:716.2 Radar Systems and Equipment - 751.5 Speech
DOI:10.1109/TIP.2016.2617462
Funding details: Number: LSIT201408, Acronym: -, Sponsor: -;Number: QYZDB-SSW-JSC015, Acronym: -, Sponsor: -;Number: 2013CB336500, Acronym: -, Sponsor: -;Number: KGZD-EWT03, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61232010, Acronym: -, Sponsor: -;Number: 61472413, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is supported in part by the National Basic Research Program of China (Youth 973 Program) under Grant 2013CB336500, in part by the State Key Program of National Natural Science of China under Grant 61232010, in part by the National Natural Science Foundation of China under Grant 61472413, in part by the Key Research Program of the Chinese Academy of Sciences under Grant KGZD-EWT03, in part by the Open Research Fund of the Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences under Grant LSIT201408, and in part by the Young Top-Notch Talent Program of Chinese Academy of Sciences under Grant QYZDB-SSW-JSC015.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<257>
Accession number:20170603331857
Title:Watt-level high-power passively Q-switched laser based on a black phosphorus solution saturable absorber
Authors:Wang, Xi (1, 2); Wang, Zhenfu (1); Wang, Yonggang (1, 3); Li, Lu (1, 2); Yang, Guowen (1); Li, Jinping (3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) School of Physics and information Technology, Shaanxi Normal University, Xi'an; 710119, China
Corresponding author:Wang, Yonggang(chinawygxjw@snnu.edu.cn)
Source title:Chinese Optics Letters
Abbreviated source title:Chin. Opt. Lett.
Volume:15
Issue:1
Issue date:January 10, 2017
Publication year:2017
Article number:011402
Language:English
ISSN:16717694
Document type:Journal article (JA)
Publisher:Science Press
Abstract:A novel black phosphorus (BP) solution saturable absorber (SA) is fabricated by the liquid-phase-exfoliated method and successfully used for passively Q-switched (QS) Nd:YVO
Number of references:35
Page count:5
Main heading:Solid state lasers
Controlled terms:Phosphorus - Q switched lasers - Q switching - Saturable absorbers
Uncontrolled terms:Average output power - Damage resistance - Nd:YVO4 laser - Optical transparency - Passively Q-switched - Passively Q-switched lasers - Pulse durations - Repetition rate
Classification code:744 Lasers - 804 Chemical Products Generally
Numerical data indexing:Frequency 5.33e+05Hz to 7.22e+05Hz, Power 1.23e+00W, Time 1.19e-07s
DOI:10.3788/COL201715.011402
Funding details: Number: 61378024, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under Grant 61378024.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<258>
Accession number:20173104014165
Title:Design of a smooth freeform illumination system for a point light source based on polar-type optimal transport mapping
Authors:Mao, Xianglong (1); Xu, Songbo (1); Hu, Xinrong (1); Xie, Yongjun (1)
Author affiliation:(1) Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China
Corresponding author:Xie, Yongjun(yjxie@opt.ac.cn)
Source title:Applied Optics
Abbreviated source title:Appl. Opt.
Volume:56
Issue:22
Issue date:August 1, 2017
Publication year:2017
Pages:6324-6331
Language:English
ISSN:1559128X
E-ISSN:21553165
CODEN:APOPAI
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:A design method is proposed to generate smooth freeform illumination optics for a point light source based on the L2optimal transport (LOT) mapping. In this method, the LOT mapping between an assumed circular planar source and a prescribed target is first obtained by solving a polar-type LOT problem. Then, the mapping calculated for the circular source is applied for a point light source. Finally, the freeform optical surface is generated by a geometric construction method to realize the ray mapping. As examples, a series of smooth-surface freeform lenses are designed for a point light source to form uniform and complex illumination patterns on rectangular targets. The ray-tracing results show that all the designs achieve excellent performance with the light utilization efficiency η over 0.87 (Fresnel loss considered) and the relative standard deviation (RSD) of the simulated illumination distribution less than 0.051 simultaneously. 2017 Optical Society of America.
Number of references:35
Main heading:Light
Controlled terms:Design - Light sources - Mapping - Ray tracing
Uncontrolled terms:Freeform illuminations - Geometric construction - Illumination distribution - Illumination patterns - Light utilization - Optimal transport - Point light source - Relative standard deviations
Classification code:405.3 Surveying - 741.1 Light/Optics
DOI:10.1364/AO.56.006324
Funding details: Number: XAB2015B29, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: XAB2016B22, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;
Funding text:?Light of West China? Program, Chinese Academy of Sciences (CAS) (XAB2015B29, XAB2016B22).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<259>
Accession number:20173104011751
Title:Leveraging Spatial Context Disparity for Power Line Detection
Authors:Pan, Chaofeng (1, 4); Shan, Haotian (1, 4); Cao, Xianbin (1); Li, Xuelong (2, 3); Wu, Dapeng (1, 5)
Author affiliation:(1) School of Electronics and Information Engineering, Beihang University, and National Key Laboratory of CNS/ATM, Beijing; 100191, China; (2) The Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; Shaanxi; 710119, China; (3) The University of Chinese Academy of Sciences, Beijing; 100049, China; (4) School of Electronics and Information Engineering, Beihang University, Beijing Laboratory for General Aviation Technology, Beijing; 100191, China; (5) University of Florida, Gainesville; FL, United States
Corresponding author:Cao, Xianbin(xbcao@buaa.edu.cn)
Source title:Cognitive Computation
Abbreviated source title:Cognitive Comput.
Volume:9
Issue:6
Issue date:December 1, 2017
Publication year:2017
Pages:766-779
Language:English
ISSN:18669956
E-ISSN:18669964
Document type:Journal article (JA)
Publisher:Springer New York LLC
Abstract:For the safety of low flying aircraft, it will become increasingly important that an aircraft should have the ability to detect and avoid small obstacles in the low flying environment. In recent years, using context information to assist in detecting power lines has shown great potential to better detect power lines at a remote distance. Therefore, how to adequately use the context information for a better detection is a hot issue of concern. This paper proposes a novel auxiliary assisted power line detection method, in which the spatial context disparity of auxiliaries is quantitatively and uniformly evaluated for the first time. As a cognitive strategy, the spatial context disparity depends on two factors, the spatial context peakedness and the spatial context difference. With this cognitive method, objects that achieve high spatial context disparity scores are more suitable for being the auxiliaries of the power lines. Experimental results show that, owing to the spatial context disparity, the proposed method can acquire proper auxiliaries with abundant context information to support the detection, so that better power line detections are achieved comparing to traditional power line detection methods. The proposed power line detection method, which can automatically choose the optimal auxiliaries, is effective and has the potential for practical use in ensuring the flight safety of unmanned air vehicles (UAVs) in the low flying environment. 2017, Springer Science+Business Media, LLC.
Number of references:51
Main heading:Aircraft detection
Controlled terms:Fighter aircraft - Information use - Learning systems - Semantics
Uncontrolled terms:Auxiliaries - Cognitive methods - Cognitive Strategy - Context information - Detect and avoid - Power lines - Spatial context - Unmanned air vehicle (UAVs)
Classification code:652.1.2 Military Aircraft - 716.2 Radar Systems and Equipment - 903.3 Information Retrieval and Use
DOI:10.1007/s12559-017-9488-y
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<260>
Accession number:20172703873676
Title:Three-dimensional characterization of tightly focused fields for various polarization incident beams
Authors:Cai, Yanan (1, 2); Liang, Yansheng (1, 2); Lei, Ming (1); Yan, Shaohui (1); Wang, Zhaojun (1, 2); Yu, Xianghua (1); Li, Manman (1, 2); Dan, Dan (1); Qian, Jia (1, 2); Yao, Baoli (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Review of Scientific Instruments
Abbreviated source title:Rev. Sci. Instrum.
Volume:88
Issue:6
Issue date:June 1, 2017
Publication year:2017
Article number:063106
Language:English
ISSN:00346748
E-ISSN:10897623
CODEN:RSINAK
Document type:Journal article (JA)
Publisher:American Institute of Physics Inc.
Abstract:Tightly focused vectorial optical beams have found extensive applications in variety of technical fields like single-molecule detection, optical tweezers, and super-resolution optical microscopy. Such applications require an accurate measurement and manipulation of focal optical fields. We have developed a compact instrument (with dimensions of 35 × 35 × 30 cm3) to rapidly measure the intensity distribution in three dimensions of the focused fields of vectorial beams and any other incident beams. This instrument employs a fluorescent nanoparticle as a probe to scan the focal region to obtain a high spatial resolution of intensity distribution. It integrates a liquid-crystal spatial light modulator to allow for tailoring the point spread function of the optical system, making it a useful tool for multi-purpose and flexible research. The robust applicability of the instrument is verified by measuring the 3D intensity distributions of focal fields of various polarization and wavefront modulated incident beams focused by a high NA (=1.25) objective lens. The minimal data acquisition time achievable in the experiment is about 8 s for a scanning region of 3.2 × 3.2 μm2(512 × 512 pixels). The measured results are in good agreement with those predicted by the vectorial diffraction theory. 2017 Author(s).
Number of references:25
Main heading:Optical tweezers
Controlled terms:Data acquisition - Light modulators - Liquid crystals - Optical systems - Optical transfer function - Polarization
Uncontrolled terms:Accurate measurement - Dimensional characterization - Fluorescent nanoparticles - High spatial resolution - Intensity distribution - Liquid crystal spatial light modulators - Single-molecule detection - Vectorial diffraction theories
Classification code:723.2 Data Processing and Image Processing - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 744.9 Laser Applications
Numerical data indexing:Time 8.00e+00s, Volume 3.00e-05m3
DOI:10.1063/1.4989519
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<261>
Accession number:20180504692888
Title:Fabrication and optical performances measurements of flexible chalcogenide imaging fiber bundles
Authors:Wang, Xing-Feng (1, 2); Yang, Jian-Feng (1); Yan, Xing-Tao (1); Chen, Guo-Qing (1, 2); Xu, Yan-Tao (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing; 101408, China
Corresponding author:Yan, Xing-Tao(yanxt@opt.ac.cn)
Source title:Guangxue Jingmi Gongcheng/Optics and Precision Engineering
Abbreviated source title:Guangxue Jingmi Gongcheng
Volume:25
Issue:12
Issue date:December 1, 2017
Publication year:2017
Pages:3137-3144
Language:Chinese
ISSN:1004924X
CODEN:GJGOF4
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences
Abstract:The academic meanings of infrared imaging fiber bundles were researched and their fabrication technologies were given. A kinds of flexible chalcogenide infrared imaging fiber bundles were fabricated, and their characteristics were tested. By taking As
Number of references:19
Main heading:Optical fiber fabrication
Controlled terms:Arsenic compounds - Chalcogenides - Efficiency - Fibers - Light transmission - Optical transfer function - Selenium compounds - Sulfur compounds - Thermography (imaging)
Uncontrolled terms:Chalcogenide glass fibers - Experimental equipments - Fabrication Technologies - Imaging fiber bundle - Infrared imaging technology - Infrared thermal image - Modulation transfer function (MTF) - Transmission efficiency
Classification code:741.1 Light/Optics - 741.1.2 Fiber Optics - 742.1 Photography - 804.2 Inorganic Compounds - 913.1 Production Engineering
Numerical data indexing:Percentage 1.00e+01%, Percentage 2.70e+00%, Percentage 3.10e+01%, Size 4.00e-05m, Size 5.00e-05m
DOI:10.3788/OPE.20172512.3137
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<262>
Accession number:20173504100414
Title:Modeling and research of infrared characteristics of space target based on radiation dissipation
Authors:Li, Wenhao (1, 2); Liu, Zhaohui (1); Mu, You (1); Liang, Dongsheng (1); Yang, Rui (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Abbreviated source title:Hongwai yu Jiguang Gongcheng Infrared Laser Eng.
Volume:46
Issue:6
Issue date:June 25, 2017
Publication year:2017
Article number:0604003
Language:Chinese
ISSN:10072276
Document type:Journal article (JA)
Publisher:Chinese Society of Astronautics
Abstract:Radiators used to maintain space target functioning normal were introduced. Operating mode and working condition were presented. Current used space target infrared characteristics models were summarized. With further analysis, the outside surface of space target were divided into common area and radiator, and energy equations were built separately. Taking FY-1C as an example, and taking account of orbit, materials and structure, temperature field of the outer surface of space target was calculated using finite element method. When dissipation power was 0 W and 100 W, the biggest temperature difference of radiator was 51.49℃. Analyzing the temperature field with orbit, the illumination in entrance pupil of detection system in a distance of 5 km was calculated. When space target was in the shadow of earth, during which the radiation from earth or solar radiation reflected by earth was negligible because of the big incident angle, the illumination of the space target differed by 1-2 orders of magnitude. When space target was under the sun, different dissipation powers can only affect the illumination of long infrared spectra apparently, because of the reflected radiation of target. 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
Number of references:10
Main heading:Earth (planet)
Controlled terms:Finite element method - Incident solar radiation - Orbits - Radiators - Temperature
Uncontrolled terms:Detection system - Incident angles - Infrared characteristics - Model and simulation - Operating modes - Orders of magnitude - Space targets - Temperature differences
Classification code:616.1 Heat Exchange Equipment and Components - 641.1 Thermodynamics - 657.1 Solar Energy and Phenomena - 921.6 Numerical Methods
Numerical data indexing:Power 0.00e+00W, Power 1.00e+02W, Size 5.00e+03m
DOI:10.3788/IRLA201746.0604003
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<263>
Accession number:20171003425216
Title:Influence of Layup and Curing on the Surface Accuracy in the Manufacturing of Carbon Fiber Reinforced Polymer (CFRP) Composite Space Mirrors
Authors:Yang, Zhiyong (1, 2); Zhang, Jianbao (2); Xie, Yongjie (3); Zhang, Boming (1); Sun, Baogang (2); Guo, Hongjun (2)
Author affiliation:(1) School of Material Science and Engineering, Beihang University, Beijing; 100191, China; (2) Aerospace Research Institute of Materials & Processing Technology, Beijing; 100076, China; (3) Xi’an Institute of Optics & Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710068, China
Corresponding author:Yang, Zhiyong(yzy512007@163.com)
Source title:Applied Composite Materials
Abbreviated source title:Appl Compos Mater
Volume:24
Issue:6
Issue date:December 1, 2017
Publication year:2017
Pages:1447-1458
Language:English
ISSN:0929189X
E-ISSN:15734897
CODEN:APCMEL
Document type:Journal article (JA)
Publisher:Springer Netherlands
Abstract:Carbon fiber reinforced polymer, CFRP, composite materials have been used to fabricate space mirror. Usually the composite space mirror can completely replicate the high-precision surface of mould by replication process, but the actual surface accuracy of replicated space mirror is always reduced, still needed further study. We emphatically studied the error caused by layup and curing on the surface accuracy of space mirror through comparative experiments and analyses, the layup and curing influence factors include curing temperature, cooling rate of curing, method of prepreg lay-up, and area weight of fiber. Focusing on the four factors, we analyzed the error influence rule and put forward corresponding control measures to improve the surface figure of space mirror. For comparative analysis, six CFRP composite mirrors were fabricated and surface profile of mirrors were measured. Four guiding control measures were described here. Curing process of composite space mirror is our next focus. 2017, Springer Science+Business Media Dordrecht.
Number of references:13
Main heading:Carbon fiber reinforced plastics
Controlled terms:Cooling - Curing - Fiber reinforced materials - Fiber reinforced plastics - Fibers - Mirrors - Reinforced plastics - Reinforcement
Uncontrolled terms:Carbon fiber reinforced polymer - Carbon fiber reinforced polymer composite - CFRP composites - Comparative analysis - Comparative experiments - Cooling rates - Curing temperature - Prepregs
Classification code:641.2 Heat Transfer - 741.3 Optical Devices and Systems - 802.2 Chemical Reactions - 817.1 Polymer Products - 951 Materials Science
DOI:10.1007/s10443-017-9595-7
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<264>
Accession number:20171703607570
Title:Design of a common-aperture VIS/LWIR imaging optical system with muti-field of view
Authors:Jing, Duan (1); Kai, Liu (1); Gang, Li (1, 2); Peipei, Yan (1, 2); Qiusha, Shan (1); Kai, Jiang (1)
Author affiliation:(1) Photoelectric Track and Measurement Technology Research Department, Xi'an Institute of Optics and Precision Mechanics, CAS, Shaanxi Xi'an; 710119, China; (2) University of the Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102563Z
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:In order to achieve the multi-band and multi-field of view imaging for target and to meet the needs of target detection for large amount of information, a common-aperture visible light/long-wave infrared(VIS/LWIR) imaging optical system with muti-field of view was designed. In this paper, the aperture is 400mm, the working wavelength is 500～700nm and 7.5～10μm, the temperature range is -15°C+50°C, this system can realize 1500mm and 3000mm dual focal length(VIS), the full field of view of short focal length is 1.16° and long focal length is 0.58° respectively, and realize 1400mm focal length(LWIR) and the full field of view of 0.54°, satisfy 100% cold shield efficiency. A re-imaging system was adopted in this designed optical system consists of main optics, VIS projection components and LMIR projection components. First of all, the structural selection and the initial parameter calculation were introduced in detail. Secondly, to improve image quality and environment adaptability, the analysis of temperature change was described particularly and the structural design requirements were put forward according to the analysis of the data. The design results proved that at the spatial frequency of 50 lp/mm, the axis MTF of the VIS system is greater than 0.48, the MTF of the LWIR system approaches the diffraction limit, the system can offer a high resolution and excellent images in whole range of the focal length, and it has the advantages of good adaptability, compact structure and small size, the results satisfy the design requirement. 2017 SPIE.
Number of references:7
Main heading:Optical systems
Controlled terms:Cold working - Diffraction - Image enhancement - Imaging systems - Infrared radiation - Optical design - Optical transfer function - Photonics - Quality control
Uncontrolled terms:Common aperture - Compact structures - Diffraction limits - Field of views - Imaging optical systems - Long focal lengths - Short focal lengths - Temperature changes
Classification code:535.2 Metal Forming - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 746 Imaging Techniques - 913.3 Quality Assurance and Control
Numerical data indexing:Percentage 1.00e+02%, Size 1.40e+00m, Size 1.50e+00m, Size 3.00e+00m, Size 4.00e-01m
DOI:10.1117/12.2257878
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<265>
Accession number:20173804169352
Title:Autofocus window selection algorithm based on visual saliency
Authors:Wei, Zhaoqi (1, 2); Su, Xiuqin (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, China; (2) University of Chinese Academy of Sciences, Beijing, China
Source title:2017 2nd International Conference on Image, Vision and Computing, ICIVC 2017
Abbreviated source title:Int. Conf. Image, Vis. Comput., ICIVC
Part number:1 of 1
Issue title:2017 2nd International Conference on Image, Vision and Computing, ICIVC 2017
Issue date:July 18, 2017
Publication year:2017
Pages:720-723
Article number:7984650
Language:English
ISBN-13:9781509062379
Document type:Conference article (CA)
Conference name:2nd International Conference on Image, Vision and Computing, ICIVC 2017
Conference date:June 2, 2017 - June 4, 2017
Conference location:Chengdu, China
Conference code:129351
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Aiming at the problem of Autofocus window selection in imaging system, a new algorithm based on visual saliency for Autofocus window selection is proposed, which provides a new solution. A re-designed Itti model is used to predict the salient region in the visual scene. By choosing the local maxima in the saliency map to be the seed, the most salient region can be obtained by growing around it and a minimum enclosing rectangle can be found as the focus window. In this paper, the focus window selection based on visual saliency can efficiently capture the visual salient region and the position of general target well, highlight potential focus targets and improves the accuracy of focusing. Compared with the common focusing window selection algorithm, the method proposed in this paper can improve the focusing performance of the imaging system and has wider applicability in the general scene. 2017 IEEE.
Number of references:16
Main heading:Visualization
Controlled terms:Computer vision - Focusing - Imaging systems
Uncontrolled terms:Auto focus - Focusing performance - Local maximum - Minimum enclosing rectangle - Salient regions - Self-adaptability - Visual saliency - Window selection
Classification code:723.5 Computer Applications - 746 Imaging Techniques
DOI:10.1109/ICIVC.2017.7984650
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<266>
Accession number:20175304592810
Title:The study of quantum spectral imaging
Authors:Bi, Siwen (1, 2); Wang, Guoguo (2); Wang, Li (2); Chen, Mingrui (2); Dou, Xibo (2); Liu, Wangyun (2); Chen, Lu (2); Lu, Baozhu (2)
Author affiliation:(1) Institute of Remote Sensing and Digital Earth, Chinese Academy of Science, State Key Laboratory of Remote Sensing Science, Peking; 100101, China; (2) Xi'An Institute of Optics and Precision Mechanics of CAS, State Key Laboratory of Transient Optics and Photonics, Xi'an; 710068, China
Corresponding author:Bi, Siwen
Volume:10111
Part number:1 of 1
Issue title:Quantum Sensing and Nano Electronics and Photonics XIV 2017
Issue date:2017
Publication year:2017
Article number:101113D
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510606630
Document type:Conference article (CA)
Conference name:Quantum Sensing and Nano Electronics and Photonics XIV 2017
Conference date:January 29, 2017 - February 2, 2017
Conference location:San Francisco, CA, United states
Conference code:128432
Sponsor:The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:At the beginning of 2001, Professor Siwen Bi first proposed the new direction of quantum remote sensing at home and abroad. Based on the research of fundamental theory and information mechanism of quantum remote sensing, a new concept of quantum spectral imaging was put forward in August 2006. 10 years, quantum spectral imaging research has made breakthrough progress and stage results. Firstly, the research status of spectral imaging and the background of quantum spectrum imaging are introduced. Secondly, the concept and research methods of quantum spectrum imaging, the relationship between quantum spectrum imaging and spectral imaging and advantages are introduced. The basic theory of quantum spectroscopy is described, especially the research of quantum spectroscopy imaging and quantum spectroscopy. Finally, the significance and application prospect of quantum spectrum imaging are described. 2017 SPIE.
Number of references:22
Main heading:Spectroscopy
Controlled terms:Experiments - Nanoelectronics - Remote sensing
Uncontrolled terms:Application prospect - Basic theory - Fundamental theory - Light fields - Quantum spectrum - Research status - Spectral imaging
Classification code:761 Nanotechnology - 901.3 Engineering Research
Numerical data indexing:Age 1.00e+01yr
DOI:10.1117/12.2250112
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<267>
Accession number:20180404671093
Title:Design of inspection system for surface defects on industrial parts under complex background
Authors:Wang, Yudan (1, 2); Wen, Desheng (1); Song, Zongxi (1)
Author affiliation:(1) Space Optics Laboratory, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104620P
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:This work aims at detecting defects on metallic industrial parts with complex surface. The searched defects are scar, rust and inclusion. A specific inspection system has been designed to deal with the particular inspected surface features. In the system, two images are acquired with the help of multiple light sources and CCD color digital camera. Based on the traditional algorithm, the background removal algorithm is designed in this article, and the color image feature extraction is also used for auxiliary analysis. A thresholding processing is then applied on this image in order to segment the imperfections. The perimeter and area of defects are calculated to further identifies the characteristics. The developed inspection system has been tested and it can accurately detect the defects of industrial parts with complex background. The recognition rate of algorithm is more than 96%. 2017 SPIE.
Number of references:9
Main heading:Surface defects
Controlled terms:Extraction - Feature extraction - Fourier transforms - Image segmentation - Inspection - Inspection equipment - Light sources
Uncontrolled terms:Background removal algorithms - Color digital cameras - Complex background - Detecting defects - Inspection system - Multiple light source - Surface defect detections - Thresholding
Classification code:802.3 Chemical Operations - 913.3.1 Inspection - 921.3 Mathematical Transformations - 951 Materials Science
Numerical data indexing:Percentage 9.60e+01%
DOI:10.1117/12.2282664
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<268>
Accession number:20174304306489
Title:Study on Single Dispersion Spectral Imager Based on Compressed Coding
Authors:Tang, Xing-Jia (1, 2); Li, Li-Bo (1); Zhao, Qiang (1); Li, Hong-Bo (1); Hu, Bing-Liang (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences, Xi'an; 710119, China; (2) School of Mathematics and Statistics, Xi'an Jiaotong University, Xi'an; 710149, China
Corresponding author:Li, Li-Bo(lilibo@opt.ac.cn)
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:37
Issue:9
Issue date:September 1, 2017
Publication year:2017
Pages:2919-2926
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press
Abstract:With the development of spectral imaging towards higher space resolution, higher spectral resolution and higher signal to noise ratio, some problems have appeared in the traditional spectral imager, for example, data acquisition quantity is too big, the resolution is affected by frame frequency and pixel size of detector, precise alignment is difficult for big caliber and long focus system, and hard to develop signal to noise ratio because of limited optics power. To solve the above problems, a single dispersion spectral imager based on compressed coding is studied. Specially, for the lack of system realization and experiment verification at home, the designation, realization, mathematic model and reconstruction algorithm under multi-frame measurement are mainly studied, and the prototype testing and data processing are achieved. At last, some key problems still need to study, such as code error analysis, multi-model and multi-algorithm, system demarcation, and reconstruction evaluation. This imaging system is consisted of object glass, coding template, dispersion element, collimating lens, focus lens and detector, and hyperspectral data was reconstructed by sparse reconstruction algorithm. There are many advantages in the new system, for example, a smaller data size due to the sparse sample of multi-information, a higher resolution because of code super-resolution, an easier implementation for lower hardware requirement, a higher optical energy usage because the code is instead of slit. The results show that the measurement is efficient, the design of prototype is proper, reconstruction algorithm and calibration method are accurate, the space information of alphabet HSI object is clear, and the spectral information of alphabet HSI object is accurate and closed to tungsten lamp spectral, so the system designation and engineering realization are feasible. 2017, Peking University Press. All right reserved.
Number of references:11
Main heading:Image processing
Controlled terms:Codes (symbols) - Data acquisition - Data handling - Dispersions - Energy utilization - Hyperspectral imaging - Incandescent lamps - Problem solving - Signal to noise ratio - Spectroscopy
Uncontrolled terms:Compressed coding - Engineering realizations - Experiment verification - Multi-frame - Reconstruction algorithms - Sparse reconstruction - Spectral imaging - Spectral information
Classification code:525.3 Energy Utilization - 707.2 Electric Lamps - 716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing - 951 Materials Science
DOI:10.3964/j.issn.1000-0593(2017)09-2919-08
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<269>
Accession number:20164703044365
Title:Er-doped mode-locked fiber laser with WS
Authors:Li, Lu (1, 4); Wang, Yonggang (1, 2); Wang, Xi (1); Yang, Guowen (1); Jiang, Shouzhen (3); Li, Zhen (3); Man, Baoyuan (3); Wang, Yishan (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) School of Physics and Information Technology, Shaanxi Normal University, Xi'an; 710119, China; (3) School of Physics and Electronics, Shandong Normal University, Jinan; 250014, China; (4) School of Science, Xi'an University of Posts and Telecommunications, Xi'an; 710121, China
Corresponding author:Wang, Yonggang(chinawygxjw@snnu.edu.cn)
Source title:Optics and Laser Technology
Abbreviated source title:Opt Laser Technol
Volume:90
Issue date:May 1, 2017
Publication year:2017
Pages:109-112
Language:English
ISSN:00303992
CODEN:OLTCAS
Document type:Journal article (JA)
Publisher:Elsevier Ltd
Abstract:The report presents conventional soliton operation in an anomalous-dispersion fiber laser with a novel WS
Number of references:45
Main heading:Mode-locked fiber lasers
Controlled terms:Dispersions - Fiber lasers - Fibers - Frequency modulation - Laser damage - Locks (fasteners) - Mica - Optical materials - Organic lasers - Pulse repetition rate - Saturable absorbers - Silicate minerals - Solitons - Tungsten compounds
Uncontrolled terms:Anomalous dispersion - Laser damage threshold - Mode-locked - Modulation depth - Non-linear optical material - Non-saturable loss - Polymer composite - Softening temperature
Classification code:482.2 Minerals - 741.3 Optical Devices and Systems - 744 Lasers - 951 Materials Science
Numerical data indexing:Frequency 8.20e+06Hz, Percentage 1.50e+01%, Percentage 3.10e+00%, Time 8.30e-13s
DOI:10.1016/j.optlastec.2016.10.011
Funding details: Number: 61205174, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11474187, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61378024, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is supported by National Natural Science Foundation of China under Grants 61378024, 61205174, and 11474187.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<270>
Accession number:20181605026929
Title:Introduction to the high energy cosmic-radiation detection (HERD) facility onboard China's future space station
Authors:Zhang, Shuang-Nan (1, 3); Adriani, Oscar (12); Albergo, Sebastiano (6); Ambrosi, Giovanni (7); An, Qi (27); Azzarello, Philippe (8); Bai, Yonglin (9); Bao, Tianwei (10); Bernardini, Paolo (17); Bertucci, Bruna (13); Bi, Xiaojun (1); Bongi, Massimo (12); Bottai, Sergio (15); Cao, Weiwei (2); Cao, Zhen (1); Chai, Junying (1, 3); Chang, Jin (28); Chen, Guoming (1); Chen, Y. (21); Chen, Zhen (2); Cui, X.H. (22); Dai, Z.G. (21); D'Alessandro, Raffaello (12); Di Santo, Margherita (11); Dong, Yongwei (1); Duranti, Matteo (7); Fan, Y.Z. (28); Fang, Kun (1); Feng, C.Q. (27); Feng, Hua (4); Formato, Valerio (7); Fusco, Piergiorgio (18); Gao, Jiarui (2); Gargano, Fabio (14); Giglietto, Nicola (18); Gou, Q.B. (1); Guo, Y.Q. (1); He, H.H. (1); Hu, H.B. (1); Hu, Peng (1, 3); Huang, G.S. (27); Huang, J. (1); Huang, Y.F. (21); Li, H. (1); Li, Ran (2); Li, Yong (2); Li, Z. (23); Liang, E.W. (5); Lin, Sujie (1); Liu, H. (1); Liu, Hongbang (5); Liu, J.B. (27); Liu, S.B. (27); Liu, S.M. (28); Liu, Xin (1, 3); Loparco, Francesco (18); Lyu, Junguang (1); Marsella, Giovanni (17); Mazziottai, Mario Nicola (14); De Mitri, Ivan (17); Mori, Nicola (15); Papini, Paolo (15); Pearce, Mark (19); Peng, Wenxi (1); Pohl, Martin (8); Quan, Zheng (1); Ryde, Felix (19); Shi, Dalian (2); Su, Meng (20); Sun, X.L. (1); Sun, Xin (2); Surdo, Antonio (11); Tang, Z.C. (1); Vannuccini, Elena (15); Walter, Roland (8); Wang, Bingbing (16); Wang, Bo (2); Wang, J.C. (24); Wang, J.M. (1); Wang, Junjing (1, 3); Wang, Le (2); Wang, Ruijie (1); Wang, X.L. (27); Wang, X.Y. (21); Wang, Zhigang (1); Wei, D.M. (28); Wu, Bobing (1); Wu, J. (25); Wu, Qiong (4); Wu, Xin (8); Wu, X.F. (28); Xu, Ming (1); Xu, Z.Z. (27); Yan, H.R. (23); Yin, P.F. (1); Yu, Y.W. (26); Yuan, Q. (28); Zha, M. (1); Zhang, L. (1); Zhang, Li (1); Zhang, Y. (1); Zhang, Y.L. (27); Zhao, Z.G. (27)
Author affiliation:(1) Key Laboratory of Particle and Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China; (2) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, Shaanxi, China; (3) University of Chinese, Academy of Sciences, Beijing, China; (4) Department of Engineering Physics, Center for Astrophysics, Tsinghua University, Beijing, China; (5) Department of Physics, Guangxi University, Nanning, China; (6) Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Catania, Italy; (7) Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Perugia, Italy; (8) Nuclear and Corpuscular Physics Department, University of Geneva, Geneva, Switzerland; (9) University of Pisa, Pisa, Italy; (10) Istituto Nazionale di Fisica Nucleare, Sezione di Trento, Trento, Italy; (11) Istituto Nazionale di Fisica Nucleare, Sezione di Lecce, Lecce, Italy; (12) University of Florence, Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, Firenze, Italy; (13) University of Perugia, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Perugia, Italy; (14) Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Bari, Italy; (15) Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, Firenze, Italy; (16) ISDC, University of Geneva, Geneva, Switzerland; (17) Universita' del Salento, Istituto Nazionale di Fisica Nucleare, Sezione di Lecce, Lecce, Italy; (18) Dipartimento di Fisica, Univerisit'a del Politecnico di Bari, Istituto Nazionale di Fisica Nucleare, Bari, Italy; (19) KTH Royal Institute of Technology, Stockholm, Sweden; (20) Hong Kong University, Hong Kong; (21) School of Astronomy and Space Science, Nanjing University, Nanjing, China; (22) National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China; (23) Department of Astronomy, Peking University, Beijing, China; (24) Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, China; (25) Department of Physics, China University of Geosciences, Wuhan, China; (26) Institute of Astrophysics, Central China Normal University, Wuhan, China; (27) Department of Modern Physics, University of Science and Technology of China, Hefei, China; (28) Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, China
Source title:Proceedings of Science
Abbreviated source title:Proc. Sci.
Part number:1 of 1
Issue title:35th International Cosmic Ray Conference, ICRC 2017
Issue date:2017
Publication year:2017
Language:English
E-ISSN:18248039
Document type:Conference article (CA)
Conference name:35th International Cosmic Ray Conference, ICRC 2017
Conference date:July 10, 2017 - July 20, 2017
Conference location:Bexco, Busan, Korea, Republic of
Conference code:135186
Publisher:Sissa Medialab Srl
Abstract:The High Energy cosmic-Radiation Detection (HERD) facility is one of several space astronomy payloads onboard China's Space Station, which is planned for operation starting around 2025 for about 10 years. The main scientific objectives of HERD are searching for signals of dark matter annihilation products, precise cosmic electron (plus positron) spectrum and anisotropy measurements up to 10 TeV, precise cosmic ray spectrum and composition measurements up to the knee energy, and high energy gamma-ray monitoring and survey. HERD is composed of a 3-D cubic calorimeter (CALO) surrounded by microstrip silicon trackers (STKs) from five sides except the bottom. CALO is made of about 7,500 cubes of LYSO crystals, corresponding to about 55 radiation lengths and 3 nuclear interaction lengths, respectively. The top STK microstrips of six X-Y layers are sandwiched with tungsten converters to make precise directional measurements of incoming electrons and gamma-rays. In the baseline design, each of the four side STKs is made of only three layers microstrips. All STKs will also be used for measuring the charge and incoming directions of cosmic rays, as well as identifying back scattered tracks. With this design, HERD can achieve the following performance: energy resolution of 1% for electrons and gamma-rays beyond 100 GeV and 20% for protons from 100 GeV to 1 PeV; electron/proton separation power better than 10-5; effective geometrical factors of >3 m2sr for electron and diffuse gamma-rays, >2 m2sr for cosmic ray nuclei. R&D is under way for reading out the LYSO signals with optical fiber coupled to image intensified IsCMOS and CALO prototype of 250 LYSO crystals. Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives 4.0 International License (CC BY-NC-ND 4.0).
Number of references:30
Main heading:Gamma rays
Controlled terms:Cosmic ray measurement - Cosmic rays - Cosmology - Electrons - Germanium compounds - Optical fibers - Space stations
Uncontrolled terms:Anisotropy measurements - Annihilation products - Composition measurements - Directional measurement - Geometrical factors - Microstrip silicon tracker - Nuclear interaction - Scientific objectives
Classification code:656.1 Space Flight - 657 Space Physics - 657.2 Extraterrestrial Physics and Stellar Phenomena - 741.1.2 Fiber Optics - 931.3 Atomic and Molecular Physics
Numerical data indexing:Age 1.00e+01yr, Electron_Volt 1.00e+11eV, Electron_Volt 1.00e+13eV, Percentage 1.00e+00%, Percentage 2.00e+01%
Funding details: Number: QYZDY-SSW-SLH008, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 113111KYSB20160053, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 11327303, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11473028, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:?Speaker. ?This work is supported by the National Natural Science Foundation of China, Grant No.11327303 and Grant No.11473028; Key Research Program of Frontier Sciences, CAS, Grant NO. QYZDY-SSW-SLH008; the International Partnership Program of Chinese Academy of Sciences, Grant No. 113111KYSB20160053.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<271>
Accession number:20171403518578
Title:Measuring dispersed spot of positioning CMOS camera from star image quantitative interpretation based on a bivariate-error least squares curve fitting algorithm
Authors:Bu, Fan (1); Qiu, Yuehong (1); Yao, Dalei (1); Yan, Xingtao (1)
Author affiliation:(1) Space Optics Laboratory, Xi'an Institute of Optics and Precision Mechanics. CAS, Shaanxi Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10250
Part number:1 of 1
Issue title:International Conference on Optical and Photonics Engineering, icOPEN 2016
Issue date:2017
Publication year:2017
Article number:102500T
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510610019
Document type:Conference article (CA)
Conference name:International Conference on Optical and Photonics Engineering, icOPEN 2016
Conference date:September 26, 2016 - September 30, 2016
Conference location:Chengdu, China
Conference code:126841
Sponsor:International Association of Computer Science and Information Technology; Sichuan Institute of Electronics
Publisher:SPIE
Abstract:For a positioning CMOS camera, we put forward a system which can measure quantitatively dispersed spot parameters and the degree of energy concentration of certain optical system. Based on this method, the detection capability of the positioning CMOS camera can be verified. The measuring method contains some key instruments, such as 550mm collimator, 0.2mm star point, turntable and a positioning CMOS camera. Firstly, the definition of dispersed spot parameters is introduced. Then, the steps of measuring dispersed spot parameters are listed. The energy center of dispersed spot is calculated using centroid algorithm, and then a bivariate-error least squares curve Gaussian fitting method is presented to fit dispersion spot energy distribution curve. Finally, the connected region shaped by the energy contour of the defocused spots is analyzed. The diameter equal to the area which is 80% of the total energy of defocused spots and the energy percentage to the 3×3 central area of the image size are both calculated. The experimental results show that 80% of the total energy of defocused spots is concentrated in the diameter of the inner circle of 15μm, and the percentage to the 3×3 pixels central area can achieve 80% and even higher. Therefore, the method meets the needs of the optical systems in positioning CMOS camera for the imaging quality control. 2017 COPYRIGHT SPIE.
Number of references:10
Main heading:Least squares approximations
Controlled terms:Cameras - CMOS integrated circuits - Curve fitting - Errors - Optical systems - Photonics - Stars
Uncontrolled terms:Bivariate - CMOS camera - Dispersed spot - Energy concentration - Least squares curve fittings
Classification code:657.2 Extraterrestrial Physics and Stellar Phenomena - 714.2 Semiconductor Devices and Integrated Circuits - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 921.6 Numerical Methods
Numerical data indexing:Percentage 8.00e+01%, Size 1.50e-05m, Size 2.00e-04m, Size 5.50e-01m
DOI:10.1117/12.2266810
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<272>
Accession number:20174304293745
Title:Thermal Stress and Smile of Conduction-cooled High Power Semiconductor Laser Arrays
Authors:Lu, Yao (1, 2); Nie, Zhi-Qiang (1); Chen, Tian-Qi (1, 2); Zhang, Pu (1); Xiong, Ling-Ling (1); Wu, Di-Hai (1, 2); Li, Xiao-Ning (3); Wang, Zhen-Fu (1); Liu, Xing-Sheng (1, 3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Focuslight Technologies Inc., Xi'an; 710077, China
Corresponding author:Nie, Zhi-Qiang(niezq@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:9
Issue date:September 1, 2017
Publication year:2017
Article number:0914001
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Finite element analysis model of the conduction-cooled package high power semiconductor lasers were established respectively to analyze normal stress, shear stress and displacement in reflowing process and operating process independently. With the help of analytical solution model, the cause and the distribution of thermal stress and smile were analyzed. The results show that shear stress is the origin of other thermo-mechanical behavior in reflowing process due to coefficient thermal expansion mismatch, while both coefficient thermal expansion mismatch and temperature gradient affect the thermal stress and displacement in operating process. In order to obtain the accurate result, the residual stress and displacement of reflowing process were considered as the initial condition in operating finite element analysis simulation, and the thermal stress and smile were simulated. The influence of heat sink temperature on smile was studied with finite element analysis and experiment. The result shows operating process has great impact on smile and results in worse smile, and with the rising of temperature of heat sink, smile also becomes larger. 2017, Science Press. All right reserved.
Number of references:23
Main heading:Finite element method
Controlled terms:Heat sinks - High power lasers - Lasers - Semiconductor lasers - Shear stress - Temperature - Thermal expansion - Thermal stress
Uncontrolled terms:Finite element analysis model - Heat sink temperature - High power semiconductor laser - Initial conditions - Operating process - Stress and displacements - Thermal expansion mismatch - Thermo-mechanical behaviors
Classification code:616.1 Heat Exchange Equipment and Components - 641.1 Thermodynamics - 744.1 Lasers, General - 744.4.1 Semiconductor Lasers - 921.6 Numerical Methods - 931.2 Physical Properties of Gases, Liquids and Solids
DOI:10.3788/gzxb20174609.0914001
Funding details: Number: 61306096, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61334010, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61404172, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61504167, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The National Natural Science Foundation of China (Nos. 61334010, 61306096, 61404172, 61504167).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<273>
Accession number:20180104605344
Title:Demonstration of on-chip multi-mode phase-sensitive amplification
Authors:Zhang, Y. (1); Reimer, C. (1); Wu, J. (1); Roztocki, P. (1); Wetzel, B. (1); Little, Brent E. (2); Chu, S.T. (3); Moss, D.J. (4); Kues, M. (1); Morandotti, R. (1, 5)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Science, Xi'an, China; (3) City University of Hong Kong, Department of Physics and Material Science, Tat Chee Avenue, Hong Kong, China; (4) Center for Micro-Photonics, Swinburne University of Technology, Hawthorne; VIC; 3122, Australia; (5) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Corresponding author:Zhang, Y.(yanbing.zhang@emt.inrs.ca)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F81-EQEC 2017
Part number:1 of 1
Issue title:European Quantum Electronics Conference, EQEC 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:European Quantum Electronics Conference, EQEC 2017
Conference date:June 25, 2017 - June 29, 2017
Conference location:Munich, Germany
Conference code:138998
Publisher:OSA - The Optical Society
Number of references:9
Page count:1
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<274>
Accession number:20170803365225
Title:Hyperspectral Image Superresolution by Transfer Learning
Authors:Yuan, Yuan (1); Zheng, Xiangtao (1); Lu, Xiaoqiang (1)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian; 710119, China
Corresponding author:Lu, Xiaoqiang(luxq666666@gmail.com)
Source title:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Abbreviated source title:IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens.
Volume:10
Issue:5
Issue date:May 2017
Publication year:2017
Pages:1963-1974
Article number:7855724
Language:English
ISSN:19391404
E-ISSN:21511535
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers
Abstract:Hyperspectral image superresolution is a highly attractive topic in computer vision and has attracted many researchers' attention. However, nearly all the existing methods assume that multiple observations of the same scene are required with the observed low-resolution hyperspectral image. This limits the application of superresolution. In this paper, we propose a new framework to enhance the resolution of hyperspectral images by exploiting the knowledge from natural images: The relationship between low/high-resolution images is the same as that between low/high-resolution hyperspectral images. In the proposed framework, the mapping between low- A nd high-resolution images can be learned by deep convolutional neural network and be transferred to hyperspectral image by borrowing the idea of transfer learning. In addition, to study the spectral characteristic between low- A nd high-resolution hyperspectral image, collaborative nonnegative matrix factorization (CNMF) is proposed to enforce collaborations between the low- A nd high-resolution hyperspectral images, which encourages the estimated solution to extract the same endmembers with low-resolution hyperspectral image. The experimental results on ground based and remote sensing data suggest that the proposed method achieves comparable performance without requiring any auxiliary images of the same scene. 2016 IEEE.
Number of references:58
Main heading:Image enhancement
Controlled terms:Convolution - Deep neural networks - Factorization - Independent component analysis - Matrix algebra - Neural networks - Optical resolving power - Remote sensing - Spectroscopy
Uncontrolled terms:Convolutional Neural Networks (CNN) - Deep convolutional neural networks - High resolution image - Image super-resolution - Nonnegative matrix factorization - Remote sensing data - Spectral characteristics - Super resolution
Classification code:716.1 Information Theory and Signal Processing - 741.1 Light/Optics - 921 Mathematics - 921.1 Algebra
DOI:10.1109/JSTARS.2017.2655112
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<275>
Accession number:20171103443058
Title:Preparation and optical properties of TeO
Authors:Li, Jie (1); Xiao, Xusheng (2); Gu, Shaoxuan (1); Xu, Yantao (2); Zhou, Zhiguang (2); Guo, Haitao (2)
Author affiliation:(1) State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology), Wuhan; Hubei; 430070, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi'an; Shaanxi; 710119, China
Corresponding author:Guo, Haitao(guoht_001@opt.ac.cn)
Source title:Optical Materials
Abbreviated source title:Opt Mater
Volume:66
Issue date:April 1, 2017
Publication year:2017
Pages:567-572
Language:English
ISSN:09253467
CODEN:OMATET
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:A serial of novel fluoro-tellurite glasses with compositions of 60TeO
Number of references:38
Main heading:Fluorine compounds
Controlled terms:Barium compounds - Energy gap - Fiber amplifiers - Fiber lasers - Glass - Hydrogen bonds - II-VI semiconductors - Infrared devices - Laser applications - Refractive index - Tellurium compounds - Zinc oxide
Uncontrolled terms:Compositional dependence - Fluoride - IR transmission spectra - Optical band gap energy - Properties - Raman gain coefficients - Tellurite glass - Third-order non-linearity
Classification code:741.1 Light/Optics - 744.4 Solid State Lasers - 744.9 Laser Applications - 801.4 Physical Chemistry - 804.2 Inorganic Compounds - 812.3 Glass
Numerical data indexing:Percentage 5.70e+01%, Percentage 7.30e+01%
DOI:10.1016/j.optmat.2017.03.006
Funding details: Number: SYSJJ2016-04, Acronym: -, Sponsor: Wuhan University of Technology;Number: -, Acronym: -, Sponsor: Key State Laboratory of Superhard Materials;Number: 2016YFB0303804, Acronym: -, Sponsor: -;Number: 61405240, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:This work was financially supported by the National Natural Science Foundation of China (No. 61405240 and 61475189) and the Natural Key Research and Development Program of China (No. 2016YFB0303804). The work was also funded by the State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology) (SYSJJ2016-04).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<276>
Accession number:20172703887483
Title:Learning multilayer channel features for pedestrian detection (Open Access)
Authors:Cao, Jiale (1); Pang, Yanwei (1); Li, Xuelong (2)
Author affiliation:(1) School of Electrical and Information Engineering, Tianjin University, Tianjin; 300072, China; (2) Center for OPTical IMagery Analysis and Learning(OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Pang, Yanwei(pyw@tju.edu.cn)
Source title:IEEE Transactions on Image Processing
Abbreviated source title:IEEE Trans Image Process
Volume:26
Issue:7
Issue date:July 2017
Publication year:2017
Pages:3210-3220
Article number:7912366
Language:English
ISSN:10577149
CODEN:IIPRE4
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Pedestrian detection based on the combination of convolutional neural network (CNN) and traditional handcrafted features (i.e., HOG+LUV) has achieved great success. In general, HOG+LUV are used to generate the candidate proposals and then CNN classifies these proposals. Despite its success, there is still room for improvement. For example, CNN classifies these proposals by the fully connected layer features, while proposal scores and the features in the inner-layers of CNN are ignored. In this paper, we propose a unifying framework called multilayer channel features (MCF) to overcome the drawback. It first integrates HOG+LUV with each layer of CNN into a multi-layer image channels. Based on the multi-layer image channels, a multistage cascade AdaBoost is then learned. The weak classifiers in each stage of the multi-stage cascade are learned from the image channels of corresponding layer. Experiments on Caltech data set, INRIA data set, ETH data set, TUD-Brussels data set, and KITTI data set are conducted. With more abundant features, an MCF achieves the state of the art on Caltech pedestrian data set (i.e., 10.40% miss rate). Using new and accurate annotations, an MCF achieves 7.98% miss rate. As many non-pedestrian detection windows can be quickly rejected by the first few stages, it accelerates detection speed by 1.43 times. By eliminating the highly overlapped detection windows with lower scores after the first stage, it is 4.07 times faster than negligible performance loss. 2016 IEEE.
Number of references:60
Main heading:Feature extraction
Controlled terms:Adaptive boosting - Classification (of information) - Multilayers - Neural networks
Uncontrolled terms:Caltech pedestrian data sets - Convolutional Neural Networks (CNN) - Detection windows - Fully-connected layers - HOG+LUV - Multilayer channels - Pedestrian detection - State of the art
Classification code:716.1 Information Theory and Signal Processing - 723 Computer Software, Data Handling and Applications
Numerical data indexing:Percentage 1.04e+01%, Percentage 7.98e+00%
DOI:10.1109/TIP.2017.2694224
Funding details: Number: QYXB201501, Acronym: -, Sponsor: -;Number: 2014CB340400, Acronym: -, Sponsor: -;Number: 61632081, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61632081, in part by the National Basic Research Program of China 973 Program under Grant 2014CB340400, and in part by the Research Fund of Hainan Tropical Ocean University Grant QYXB201501.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<277>
Accession number:20180204633874
Title:Design of low noise imaging system
Authors:Hu, Bo (1, 2); Chen, Xiaolai (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10459
Part number:1 of 1
Issue title:AOPC 2017: Optical Storage and Display Technology
Issue date:2017
Publication year:2017
Article number:104590Z
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510613997
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Storage and Display Technology, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:132930
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:In order to meet the needs of engineering applications for low noise imaging system under the mode of global shutter, a complete imaging system is designed based on the SCMOS (Scientific CMOS) image sensor CIS2521F. The paper introduces hardware circuit and software system design. Based on the analysis of key indexes and technologies about the imaging system, the paper makes chips selection and decides SCMOS + FPGA+ DDRII+ Camera Link as processing architecture. Then it introduces the entire system workflow and power supply and distribution unit design. As for the software system, which consists of the SCMOS control module, image acquisition module, data cache control module and transmission control module, the paper designs in Verilog language and drives it to work properly based on Xilinx FPGA. The imaging experimental results show that the imaging system exhibits a 2560？2160 pixel resolution, has a maximum frame frequency of 50 fps. The imaging quality of the system satisfies the requirement of the index. 2017 COPYRIGHT SPIE.
Number of references:3
Main heading:Computer architecture
Controlled terms:Cameras - Computer hardware description languages - Computer software - Digital storage - Display devices - Electric conductance - Field programmable gate arrays (FPGA) - Image resolution - Imaging systems - Integrated circuit design
Uncontrolled terms:Camera links - DDRII - Engineering applications - Power supply and distribution - Processing architectures - SCMOS - Software system designs - Transmission control
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 714.2 Semiconductor Devices and Integrated Circuits - 721.2 Logic Elements - 722.1 Data Storage, Equipment and Techniques - 722.2 Computer Peripheral Equipment - 723 Computer Software, Data Handling and Applications - 723.1.1 Computer Programming Languages - 742.2 Photographic Equipment - 746 Imaging Techniques
DOI:10.1117/12.2285716
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<278>
Accession number:20181304944640
Title:Novel long-period fiber gratings: Fabrication and sensing applications
Authors:Ren, Liyong (1); Ren, Kaili (1, 2); Kong, Xudong (1); Liang, Jian (1); Ju, Haijuan (1); Wu, Zhaoxin (2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Xi'an Jiaotong University, Xi'an; 710049, China
Source title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Abbreviated source title:Conf. Lasers. Electr.-Opt., Proc.
Volume:2017-January
Part number:1 of 1
Issue title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Issue date:October 25, 2017
Publication year:2017
Pages:1-2
Language:English
ISBN-13:9781943580279
Document type:Conference article (CA)
Conference name:2017 Conference on Lasers and Electro-Optics, CLEO 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:131854
Sponsor:AdValue Photonics; American Elements - The Materials Science Company; Coherent; et al.; KMLabs - Leading in Ultrafast; MKS
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We presented two novel schemes for fabricating micro-tapered long-period fiber gratings (LPFGs) and helical LPFGs, respectively, by periodically tapering and by directly twisting single mode fibers. Superior sensing characteristics of them are also demonstrated experimentally. 2017 IEEE.
Number of references:6
Main heading:Diffraction gratings
Controlled terms:Fabrication - Single mode fibers
Uncontrolled terms:Long period fiber grating - Sensing applications - Sensing characteristics
Classification code:741.1.2 Fiber Optics - 741.3 Optical Devices and Systems
DOI:10.1364/CLEO_SI.2017.AW4B.6
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<279>
Accession number:20173904217981
Title:Reconfigurable broadband microwave photonic intensity differentiator based on an integrated optical frequency comb source (Open Access)
Authors:Xu, Xingyuan (1); Wu, Jiayang (1); Shoeiby, Mehrdad (2); Nguyen, Thach G. (2); Chu, Sai T. (3); Little, Brent E. (4); Morandotti, Roberto (5, 6, 7); Mitchell, Arnan (2); Moss, David J. (1)
Author affiliation:(1) Centre for Micro-Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (2) ARC Centre of Excellence for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), School of Engineering, RMIT University, Melbourne; VIC; 3001, Australia; (3) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, Hong Kong; (4) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China; (5) INSR-énergie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (6) National Research University of Information Technologies, Mechanics and Optics, St.-Petersburg, Russia; (7) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Corresponding author:Moss, David J.(dmoss@swin.edu.au)
Source title:APL Photonics
Abbreviated source title:APL Photonics
Volume:2
Issue:9
Issue date:September 1, 2017
Publication year:2017
Article number:096104
Language:English
E-ISSN:23780967
Document type:Journal article (JA)
Publisher:AIP Publishing
Abstract:We propose and experimentally demonstrate a microwave photonic intensity differentiator based on a Kerr optical comb generated by a compact integrated micro-ring resonator (MRR). The on-chip Kerr optical comb, containing a large number of comb lines, serves as a high-performance multi-wavelength source for implementing a transversal filter, which will greatly reduce the cost, size, and complexity of the system. Moreover, owing to the compactness of the integrated MRR, frequency spacings of up to 200-GHz can be achieved, enabling a potential operation bandwidth of over 100 GHz. By programming and shaping individual comb lines according to calculated tap weights, a reconfigurable intensity differentiator with variable differentiation orders can be realized. The operation principle is theoretically analyzed, and experimental demonstrations of the first-, second-, and third-order differentiation functions based on this principle are presented. The radio frequency amplitude and phase responses of multi-order intensity differentiations are characterized, and system demonstrations of real-time differentiations for a Gaussian input signal are also performed. The experimental results show good agreement with theory, confirming the effectiveness of our approach. 2017 Author(s).
Number of references:43
Main heading:Microwave resonators
Controlled terms:Optical resonators
Uncontrolled terms:Experimental demonstrations - Frequency spacing - Microring Resonator (MRR) - Microwave Photonics - Multi-wavelength source - Operation bandwidth - Optical frequency comb sources - Radio frequencies
Classification code:714 Electronic Components and Tubes - 741.3 Optical Devices and Systems
Numerical data indexing:Frequency 1.00e+11Hz, Frequency 2.00e+11Hz
DOI:10.1063/1.4989871
Funding text:This work was supported by the Australian Research Council Discovery Projects Program (No. DP150104327). R.M. acknowledges support by the Natural Sciences and Engineering Research Council of Canada (NSERC) through the Strategic, Discovery and Acceleration Grants Schemes, by the MESI PSR-SIIRI Initiative in Quebec, and by the Canada Research Chair Program. He also acknowledges additional support by the Government of the Russian Federation through the ITMO Fellowship and Professorship Program (Grant No. 074-U 01) and by the 1000 Talents Sichuan Program in China. B.E.L. was supported by the Strategic Priority Research Program of the Chinese Academy of Sciences, Grant No. XDB24030000.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<280>
Accession number:20182205251253
Title:The application of BI-RADS feature in the ultrasound breast tumor CAD system
Authors:Zhang, Fan (1); Huang, Qinghua (1); Li, Xuelong (2)
Author affiliation:(1) School of Electronic and Information Engineering, South China University of Technology, Guangzhou; 510641, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Huang, Qinghua(qhhuang@scut.edu.cn)
Source title:Proceedings - 2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2017
Abbreviated source title:Proc. - Int. Congr. Image Signal Process., BioMed. Eng. Inf., CISP-BMEI
Volume:2018-January
Part number:1 of 1
Issue title:Proceedings - 2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2017
Issue date:July 2, 2017
Publication year:2017
Pages:1-5
Language:English
ISBN-13:9781538619377
Document type:Conference article (CA)
Conference name:10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2017
Conference date:October 14, 2017 - October 16, 2017
Conference location:Shanghai, China
Conference code:135071
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:The breast cancer is one of the most common diseases in women. This paper proposed a breast tumor computer aided diagnosis (CAD) system utilized the Breast Imaging Reporting and Data System (BI-RADS) features. The BI-RADS feature scoring scheme is designed to transform the BI-RADS report to a vector. And the decision tree algorithm is adopted to classify the vector. Compared with previous CAD system, the proposed system is easier to be understood by the clinician. Without the image preprocessing, the proposed system can be applied in different ultrasound machines. There are 440 samples collected from the Cancer Center of Sun Yat-sen University. In the experiment, the five-fold cross validation is employed to evaluate the proposed system. The result shows that the performance of the proposed system is better than the CAD method which takes the BI-RADS feature as a guide to extract features from images. The average accuracy achieves 89.38%, specificity is 90.74%, sensitivity is 86.18%, positive predictive value (PPV) reaches 93.57% and negative predictive value (NVP) is 79.82%. 2017 IEEE.
Number of references:20
Main heading:Computer aided diagnosis
Controlled terms:Biomedical engineering - Data mining - Decision trees - Diseases - Image processing - Medical imaging - Trees (mathematics) - Tumors - Ultrasonics
Uncontrolled terms:BI-RADS - Breast imaging reporting and data systems - CAD system - Computer Aided Diagnosis(CAD) - Decision-tree algorithm - Image preprocessing - Negative predictive value - Positive predictive values
Classification code:461.1 Biomedical Engineering - 461.2 Biological Materials and Tissue Engineering - 723.2 Data Processing and Image Processing - 753.1 Ultrasonic Waves - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
Numerical data indexing:Percentage 7.98e+01%, Percentage 8.62e+01%, Percentage 8.94e+01%, Percentage 9.07e+01%, Percentage 9.36e+01%
DOI:10.1109/CISP-BMEI.2017.8302276
Funding details: Number: 201605030011, Acronym: -, Sponsor: -;Number: 2014A050503020, Acronym: -, Sponsor: -;Number: 61571193, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:ACKNOWLEDGMENT This work was partially supported by National Natural Science Foundation of China (Nos. 61372007 and 61571193), Guangzhou Key Lab of Body Data Science (no.201605030011), and Guangdong Provincial Science and Technology Program - International Collaborative Projects (No. 2014A050503020).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<281>
Accession number:20181304938231
Title:Visibility enhancement of hazy images using polarimetric dehazing method based on stokes parameters
Authors:Liang, Jian (1, 2); Zhang, Wenfei (1, 2); Ren, Liyong (1); Ju, Haijuan (1, 2); Bai, Zhaofeng (1); Qu, Enshi (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Abbreviated source title:Conf. Lasers. Electr.-Opt., Proc.
Volume:2017-January
Part number:1 of 1
Issue title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Issue date:October 25, 2017
Publication year:2017
Pages:1-2
Language:English
ISBN-13:9781943580279
Document type:Conference article (CA)
Conference name:2017 Conference on Lasers and Electro-Optics, CLEO 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:131854
Sponsor:AdValue Photonics; American Elements - The Materials Science Company; Coherent; et al.; KMLabs - Leading in Ultrafast; MKS
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Polarimetric dehazing methods are proven very effective in enhancing the contrast and visibility of images captured in hazy weather. In this paper, we analyze the capability of visibility enhancement in experiments. 2017 IEEE.
Number of references:6
Main heading:Image enhancement
Controlled terms:Demulsification - Polarimeters - Visibility
Uncontrolled terms:Dehazing - Stokes parameters
Classification code:741.2 Vision - 802.3 Chemical Operations - 941.3 Optical Instruments
DOI:10.1364/CLEO_SI.2017.AM4B.5
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<282>
Accession number:20175104549160
Title:FFGS: Feature fusion with gating structure for image caption generation
Authors:Yuan, Aihong (1, 2); Li, Xuelong (1); Lu, Xiaoqiang (1)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning (OPTIMAL), Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing; 100049, China
Corresponding author:Lu, Xiaoqiang(luxq666666@gmail.com)
Source title:Communications in Computer and Information Science
Abbreviated source title:Commun. Comput. Info. Sci.
Volume:771
Part number:1 of 3
Issue title:Computer Vision - 2nd CCF Chinese Conference, CCCV 2017, Proceedings
Issue date:2017
Publication year:2017
Pages:638-649
Language:English
ISSN:18650929
ISBN-13:9789811072987
Document type:Conference article (CA)
Conference name:2nd Chinese Conference on Computer Vision, CCCV 2017
Conference date:October 11, 2017 - October 14, 2017
Conference location:Tianjin, China
Conference code:208009
Publisher:Springer Verlag
Abstract:Automatically generating a natural language to describe the content of the given image is a challenging task in the interdisciplinary between computer vision and natural language processing. The task is challenging because computers not only need to recognize objects, their attributions and relationships between them in an image, but also these elements should be represented into a natural language sentence. This paper proposed a feature fusion with gating structure for image caption generation. First, the pre-trained VGG-19 is used as the image feature extractor. We use the FC-7 and CONV5-4 layer’s outputs as the global and local image feature, respectively. Second, the image features and the corresponding sentence are imported into LSTM to learn their relationship. The global image feature is gated at each time-step before imported into LSTM while the local image feature used the attention model. Experimental results show our method outperform the state-of-the-art methods. Springer Nature Singapore Pte Ltd. 2017.
Number of references:22
Main heading:Long short-term memory
Controlled terms:Computer vision - Image fusion - Natural language processing systems - Recurrent neural networks
Uncontrolled terms:Attention model - Convolutional neural network - Feature fusion - Image caption - Local image features - Multi-modal - Natural languages - State-of-the-art methods
Classification code:723.2 Data Processing and Image Processing - 723.5 Computer Applications
DOI:10.1007/978-981-10-7299-4_53
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<283>
Accession number:20182205249318
Title:Robust control of boost converter
Authors:Qi, Lijie (1, 2); Xiao, Maosen (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China; (2) University of Chinese Academy of Sciences, Beijing, China
Corresponding author:Qi, Lijie(qisir123@163.com)
Source title:Proceedings - 2017 2nd International Conference on Cybernetics, Robotics and Control, CRC 2017
Abbreviated source title:Proc. - Int. Conf. Cybern., Robot. Control, CRC
Volume:2018-January
Part number:1 of 1
Issue title:Proceedings - 2017 2nd International Conference on Cybernetics, Robotics and Control, CRC 2017
Issue date:July 2, 2017
Publication year:2017
Pages:61-65
Language:English
ISBN-13:9781538606773
Document type:Conference article (CA)
Conference name:2nd International Conference on Cybernetics, Robotics and Control, CRC 2017
Conference date:July 21, 2017 - July 23, 2017
Conference location:Chengdu, Sichuan, China
Conference code:135561
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In recent years, high-performance DC-DC converter is a key research direction in the fields of power design. This paper takes the Boost-converter as an example to construct the mathematical model. Besides, it also applies several control strategies which includes PID control based on genetic algorithm, sliding mode control algorithm and so on to the design of DC-DC converter. Finally, we analyzed the simulation results. 2017 IEEE.
Number of references:10
Main heading:DC-DC converters
Controlled terms:Cybernetics - Electric inverters - Genetic algorithms - Robotics - Robust control - Sliding mode control - Three term control systems
Uncontrolled terms:BOOST converter - component - Control strategies - Power design - simulation
Classification code:704.1 Electric Components - 731 Automatic Control Principles and Applications
DOI:10.1109/CRC.2017.17
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<284>
Accession number:20173604120668
Title:Transmission performance of 90°-bend optical waveguides fabricated in fused silica by femtosecond laser inscription
Authors:Lv, Jing (1, 2); Bai, Jing (2); Zhou, Kaiming (2, 3); Mei, Xuesong (1); Wang, Kedian (1); Li, Ming (1, 2); Cheng, Guanghua (2)
Author affiliation:(1) State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Shaanxi Key Laboratory of Intelligent Robots, Xi’an Jiaotong University, Xi’an; 710049, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China; (3) Aston Institute of Photonic Technologies, Aston University, Birmingham; B4 7ET, United Kingdom
Corresponding author:Cheng, Guanghua(gcheng@opt.ac.cn)
Source title:Optics Letters
Abbreviated source title:Opt. Lett.
Volume:42
Issue:17
Issue date:September 1, 2017
Publication year:2017
Pages:3470-3473
Language:English
ISSN:01469592
E-ISSN:15394794
CODEN:OPLEDP
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:The L-shape waveguide was written in fused silica using a femtosecond laser with beam shaping. The guiding structure supports good light turning; 0.88 dB/turn was achieved at the silica-air interface. By using the finite-different time-domain method, the turn loss due to the turning structure and refractive index of the L-shape waveguide has been simulated. The results show that the proposed method has unprecedented flexibility in fabricating a 90°-bend waveguide. 2017 Optical Society of America.
Number of references:16
Main heading:Fused silica
Controlled terms:Fabrication - Femtosecond lasers - Refractive index - Time domain analysis - Waveguides
Uncontrolled terms:Air interface - Beam-shaping - Bend waveguide - Femtosecond laser inscriptions - Finite different time domain method - Guiding structures - Light turning - Transmission performance
Classification code:714.3 Waveguides - 741.1 Light/Optics - 812.3 Glass - 921 Mathematics
DOI:10.1364/OL.42.003470
Funding details: Number: IRT_15R54, Acronym: -, Sponsor: -;Number: 2016YFB1102501, Acronym: -, Sponsor: -;Number: 61378019, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 51375374, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Funding. National Natural Science Foundation of China (NSFC) (51375374, 61378019); Program for Chang Jiang Scholars and the Innovative Research Team in University (IRT_15R54); National Key Research and Development Program (2016YFB1102501).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<285>
Accession number:20174204273453
Title:Interleaved segment correction achieves higher improvement factors in using genetic algorithm to optimize light focusing through scattering media
Authors:Li, Runze (1, 2, 3); Peng, Tong (1, 3); Liang, Yansheng (1, 3); Yang, Yanlong (1); Yao, Baoli (1); Yu, Xianghua (1); Min, Junwei (1); Lei, Ming (1); Yan, Shaohui (1); Zhang, Chunmin (2); Ye, Tong (4)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) School of Science, Xi'An Jiaotong University, Xi'an; 710049, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China; (4) Department of Bioengineering, Clemson University, Clemson-MUSC Bioengineering Program, Charleston; SC; 29425, United States
Corresponding author:Yao, Baoli(yaobl@opt.ac.cn)
Source title:Journal of Optics (United Kingdom)
Abbreviated source title:J. Opt.
Volume:19
Issue:10
Issue date:September 13, 2017
Publication year:2017
Article number:105602
Language:English
ISSN:20408978
E-ISSN:20408986
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:Focusing and imaging through scattering media has been proved possible with high resolution wavefront shaping. A completely scrambled scattering field can be corrected by applying a correction phase mask on a phase only spatial light modulator (SLM) and thereby the focusing quality can be improved. The correction phase is often found by global searching algorithms, among which Genetic Algorithm (GA) stands out for its parallel optimization process and high performance in noisy environment. However, the convergence of GA slows down gradually with the progression of optimization, causing the improvement factor of optimization to reach a plateau eventually. In this report, we propose an interleaved segment correction (ISC) method that can significantly boost the improvement factor with the same number of iterations comparing with the conventional all segment correction method. In the ISC method, all the phase segments are divided into a number of interleaved groups; GA optimization procedures are performed individually and sequentially among each group of segments. The final correction phase mask is formed by applying correction phases of all interleaved groups together on the SLM. The ISC method has been proved significantly useful in practice because of its ability to achieve better improvement factors when noise is present in the system. We have also demonstrated that the imaging quality is improved as better correction phases are found and applied on the SLM. Additionally, the ISC method lowers the demand of dynamic ranges of detection devices. The proposed method holds potential in applications, such as high-resolution imaging in deep tissue. 2017 IOP Publishing Ltd.
Number of references:27
Main heading:Genetic algorithms
Controlled terms:Focusing - Imaging systems - Light modulation - Light modulators - Scattering - Wavefronts
Uncontrolled terms:High-resolution imaging - Improvement factors - Memory effects - Number of iterations - Parallel optimization - Spatial light modulators - Turbid media - Wave front control
Classification code:741.1 Light/Optics - 746 Imaging Techniques
DOI:10.1088/2040-8986/aa84dc
Funding details: Number: 2012CB921900, Acronym: -, Sponsor: -;Number: 1539034, Acronym: NSF, Sponsor: National Science Foundation;Number: P20GM-103499, Acronym: NIGMS, Sponsor: National Institute of General Medical Sciences;Number: R21GM-104683, Acronym: NIGMS, Sponsor: National Institute of General Medical Sciences;Number: 61377008, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275193, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 81427802, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This research is supported by the National Basic Research Program (973 Program) of China under grant No. 2012CB921900 and the Natural Science Foundation of China under the grant No. 81427802, 61275193 and 61377008. TY is grateful for the supports from National Institute of General Medical Sciences (R21GM-104683 and P20GM-103499) and a grant from the National Science Foundation (1539034).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<286>
Accession number:20172203708621
Title:Reweighted Infrared Patch-Tensor Model with Both Nonlocal and Local Priors for Single-Frame Small Target Detection
Authors:Dai, Yimian (1); Wu, Yiquan (1, 2)
Author affiliation:(1) College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 211106, China; (2) Key Laboratory of Spectral Imaging Technology CAS, Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an; 710000, China
Corresponding author:Wu, Yiquan(nuaaimagestrong@163.com)
Source title:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Abbreviated source title:IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens.
Volume:10
Issue:8
Issue date:August 2017
Publication year:2017
Pages:3752-3767
Article number:7932858
Language:English
ISSN:19391404
E-ISSN:21511535
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers
Abstract:Many state-of-the-art methods have been proposed for infrared small target detection. They work well on the images with homogeneous backgrounds and high-contrast targets. However, when facing highly heterogeneous backgrounds, they would not perform very well, mainly due to: 1) the existence of strong edges and other interfering components, 2) not utilizing the priors fully. Inspired by this, we propose a novel method to exploit both local and nonlocal priors simultaneously. First, we employ a new infrared patch-tensor (IPT) model to represent the image and preserve its spatial correlations. Exploiting the target sparse prior and background nonlocal self-correlation prior, the target-background separation is modeled as a robust low-rank tensor recovery problem. Moreover, with the help of the structure tensor and reweighted idea, we design an entrywise local-structure-adaptive and sparsity enhancing weight to replace the globally constant weighting parameter. The decomposition could be achieved via the elementwise reweighted higher order robust principal component analysis with an additional convergence condition according to the practical situation of target detection. Extensive experiments demonstrate that our model outperforms the other state-of-the-arts, in particular for the images with very dim targets and heavy clutters. 2008-2012 IEEE.
Number of references:52
Main heading:Principal component analysis
Controlled terms:Tensors
Uncontrolled terms:Infrared small targets - Local structure - Robust principal component analysis - Self correlation - Tensor model
Classification code:921.1 Algebra - 922.2 Mathematical Statistics
DOI:10.1109/JSTARS.2017.2700023
Funding details: Number: LSIT201401, Acronym: -, Sponsor: Chinese Academy of Sciences;Number: 61573183, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61573183, and in part by Open Research Fund of Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences under Grant LSIT201401.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<287>
Accession number:20174304308520
Title:JM-Net and cluster-SVM for aerial scene classification
Authors:Lu, Xiaoqiang (1); Yuan, Yuan (1); Fang, Jie (1, 2)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (2) University of the Chinese Academy of Sciences, 19A Yuquanlu, Beijing; 100047, China
Source title:IJCAI International Joint Conference on Artificial Intelligence
Abbreviated source title:IJCAI Int. Joint Conf. Artif. Intell.
Volume:0
Part number:1 of 1
Issue title:26th International Joint Conference on Artificial Intelligence, IJCAI 2017
Issue date:2017
Publication year:2017
Pages:2386-2392
Language:English
ISSN:10450823
ISBN-13:9780999241103
Document type:Conference article (CA)
Conference name:26th International Joint Conference on Artificial Intelligence, IJCAI 2017
Conference date:August 19, 2017 - August 25, 2017
Conference location:Melbourne, VIC, Australia
Conference code:130864
Sponsor:Alibaba Group; Artificial Intelligence Journal; et al.; Melbourne Convention Bureau; Victoria Government; Xiaoi
Publisher:International Joint Conferences on Artificial Intelligence
Abstract:Aerial scene classification, which is a fundamental problem for remote sensing imagery, can automatically label an aerial image with a specific semantic category. Although deep learning has achieved competitive performance for aerial scene classification, training the conventional neural networks with aerial datasets will easily stick in overfitting. Because the aerial datasets only contain a few hundreds or thousands images, meanwhile the conventional networks usually contain millions of parameters to be trained. To address the problem, a novel convolutional neural network named Justify Mentioned Net (JM-Net) is proposed in this paper, which has different size of convolution kernels in same layer and ignores the fully convolution layer, so it has fewer parameters and can be trained well on aerial datasets. Additionally, Cluster-SVM, a strategy to improve the accuracy and speed up the classification is used in the specific task. Finally, our method surpass the state-of-art result on the challenging AID dataset while cost shorter time and used smaller storage space.
Number of references:19
Main heading:Antennas
Controlled terms:Classification (of information) - Convolution - Deep learning - Neural networks - Remote sensing - Semantics
Uncontrolled terms:Competitive performance - Convolution kernel - Convolutional neural network - Different sizes - Remote sensing imagery - Scene classification - Specific semantics - Specific tasks
Classification code:716.1 Information Theory and Signal Processing
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<288>
Accession number:20170903384132
Title:Refractive index and temperature sensitivity characterization of excessively tilted fiber grating
Authors:Yan, Z. (1, 2, 3); Sun, Q. (1); Wang, C. (2); Sun, Z. (2); Mou, C. (2, 3); Zhou, K. (2, 4); Liu, D. (1); Zhang, L. (2)
Author affiliation:(1) School of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, Hubei; 430074, China; (2) Aston Institute of Photonic Technologies, Aston University, Birmingham; B4 7ET, United Kingdom; (3) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (4) Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai; 200072, China
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:4
Issue date:February 20, 2017
Publication year:2017
Pages:3336-3346
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We have investigated experimentally and numerically the temperature and refractive index (RI) sensitivity characteristics of excessively tilted fiber gratings (Ex-TFGs) in detail. Both results have shown that the temperature and RI sensitivities of Ex-TFGs are mode order dependent. For temperature sensitivity, the higher order cladding mode of Ex- TFG exhibited lower temperature sensitivity, quantitatively, the temperature sensitivities of TM cladding modes at the resonance wavelength around 1550nm are 9pm/°C, 6.8pm/°C, 5.6pm/°C and, 4pm/°C for cladding mode 28th, 31st, 35th, 40th, respectively, indicating the overall temperature sensitivity of Ex-TFGs were lower than that of normal FBGs. The SRI sensing results have shown that the RI sensitivity of Ex-TFG at the special index value could be improved by choosing the cladding mode with effective index close to the refractive index of the detecting medium. The SRI sensitivities at the effective mode index were 2250nm/RIU at 1.408, 864nm/RIU at 1.395, 1536nm/RIU at 1.380 and 1360nm/RIU at 1.355, for the cladding mode of 28th, 31st, 35th, 43rd, respectively. The experimental results have also shown the SRI sensitivity of Ex-TFG was increasing with increasing of the resonance wavelength. 2017 Optical Society of America.
Number of references:34
Main heading:Refractive index
Controlled terms:Cladding (coating)
Uncontrolled terms:Cladding modes - Effective index - Index values - Lower temperature sensitivities - Resonance wavelengths - Sensitivity characteristics - Temperature sensitivity - Tilted fiber gratings
Classification code:741.1 Light/Optics
Numerical data indexing:Size 1.55e-06m
DOI:10.1364/OE.25.003336
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<289>
Accession number:20173704163011
Title:Overlapping community detection for multimedia social networks
Authors:Huang, Faliang (1); Li, Xuelong (2); Zhang, Shichao (3); Zhang, Jilian (4); Chen, Jinhui (5); Zhai, Zhinian (6)
Author affiliation:(1) Fujian Engineering Research Center of Public Service Big Data Mining and Application, Faculty of Software, Fujian Normal University, Fuzhou; 350007, China; (2) Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian; 710119, China; (3) College of Computer Science and IT, Guangxi Normal University, Guilin; 541000, China; (4) Department of Computer Science, Jinan University, Guangzhou, Shi; 510630, China; (5) Graduate School of System Informatics, Kobe University, Kobe; 657-0013, Japan; (6) School of Information and Electronic Engineering, Zhejiang University of Science and Technology, Hangzhou; 311122, China
Corresponding author:Zhang, Jilian(zhangjilian@yeah.net)
Source title:IEEE Transactions on Multimedia
Abbreviated source title:IEEE Trans Multimedia
Volume:19
Issue:8
Issue date:August 2017
Publication year:2017
Pages:1881-1893
Article number:7895160
Language:English
ISSN:15209210
CODEN:ITMUF8
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Finding overlapping communities from multimedia social networks is an interesting and important problem in data mining and recommender systems. However, extant overlapping community discovery with swarm intelligence often generates overlapping community structures with superfluous small communities. To deal with the problem, in this paper, an efficient algorithm (LEPSO) is proposed for overlapping communities discovery, which is based on line graph theory, ensemble learning, and particle swarm optimization (PSO). Specifically, a discrete PSO, consisting of an encoding scheme with ordered neighbors and a particle updating strategy with ensemble clustering, is devised for improving the optimization ability to search communities hidden in social networks. Then, a postprocessing strategy is presented for merging the finer-grained and suboptimal overlapping communities. Experiments on some real-world and synthetic datasets show that our approach is superior in terms of robustness, effectiveness, and automatically determination of the number of clusters, which can discover overlapping communities that have better quality than those computed by state-of-the-art algorithms for overlapping communities detection. 1999-2012 IEEE.
Number of references:53
Main heading:Particle swarm optimization (PSO)
Controlled terms:Data mining - Graph theory - Social networking (online) - Swarm intelligence
Uncontrolled terms:Ensemble clustering - Ensemble learning - Line graph - Number of clusters - Optimization ability - Overlapping communities - Overlapping community detections - State-of-the-art algorithms
Classification code:723 Computer Software, Data Handling and Applications - 723.2 Data Processing and Image Processing - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
DOI:10.1109/TMM.2017.2692650
Funding details: Number: -, Acronym: -, Sponsor: Fujian Normal University;Number: 2017J01497, Acronym: -, Sponsor: Natural Science Foundation of Fujian Province;Number: 2016YFB1000905, Acronym: -, Sponsor: -;Number: 2013CB329404, Acronym: -, Sponsor: -;Number: 61363009, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61672177, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Manuscript received October 10, 2016; revised January 7, 2017 and March 3, 2017; accepted March 27, 2017. Date of publication April 12, 2017; date of current version July 15, 2017. This work was supported in part by the China 1000-Plan National Distinguished Professorship, in part by the China 973 Program under Grant 2013CB329404, in part by the China Key Research Program under Grant 2016YFB1000905, in part by the Natural Science Foundation of China under Grant 61672177 and Grant 61363009, in part by the Natural Science Foundation of Fujian Province under Grant 2017J01497, in part by the Guangxi Bagui Teams for Innovation and Research, and in part by the Guangxi Collaborative Innovation Center of MultisSource Information Integration and Intelligent Processing. The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Shu-Ching Chen. (Corresponding authors: Faliang Huang; Jilian Zhang.) F. Huang is with the Fujian Engineering Research Center of Public Service Big Data Mining and Application, Faculty of Software, Fujian Normal University, Fuzhou 350007, China (e-mail: faliang.huang@gmail.com).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<290>
Accession number:20180904840307
Title:Data preprocessing methods for robust Fourier ptychographic microscopy
Authors:Zhang, Yan (1, 2); Pan, An (1, 2); Lei, Ming (1); Yao, Baoli (1, 3)
Author affiliation:(1) Chinese Academy of Sciences, Xi'An Institute of Optics and Precision Mechanics, State Key Laboratory of Transient Optics and Photonics, Xi'an, Shaanxi, China; (2) University of Chinese Academy of Sciences, Beijing, China; (3) Shanxi University, Collaborative Innovation Center of Extreme Optics, Taiyuan, Shanxi, China
Corresponding author:Yao, Baoli(yaobl@opt.ac.cn)
Source title:Optical Engineering
Abbreviated source title:Opt Eng
Volume:56
Issue:12
Issue date:December 1, 2017
Publication year:2017
Article number:123107
Language:English
ISSN:00913286
E-ISSN:15602303
CODEN:OPEGAR
Document type:Journal article (JA)
Publisher:SPIE
Abstract:Fourier ptychographic microscopy (FPM) is a recently developed computational imaging technique that achieves gigapixel images with both high resolution and large field-of-view. In the current FPM experimental setup, the dark-field images with high-angle illuminations are easily overwhelmed by stray lights and background noises due to the low signal-to-noise ratio, thus significantly degrading the achievable resolution of the FPM approach. We provide an overall and systematic data preprocessing scheme to enhance the FPM's performance, which involves sampling analysis, underexposed/overexposed treatments, background noises suppression, and stray lights elimination. It is demonstrated experimentally with both US Air Force (USAF) 1951 resolution target and biological samples that the benefit of the noise removal by these methods far outweighs the defect of the accompanying signal loss, as part of the lost signals can be compensated by the improved consistencies among the captured raw images. In addition, the reported nonparametric scheme could be further cooperated with the existing state-of-the-art algorithms with a great flexibility, facilitating a stronger noise-robust capability of the FPM approach in various applications. 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).
Number of references:25
Main heading:Image enhancement
Controlled terms:Fourier transforms - Image reconstruction - Signal to noise ratio - Stray light
Uncontrolled terms:Biological samples - Computational imaging - Data preprocessing - Fourier - Large field of views - Low signal-to-noise ratio - Phase retrieval - State-of-the-art algorithms
Classification code:716.1 Information Theory and Signal Processing - 741.1 Light/Optics - 921.3 Mathematical Transformations
DOI:10.1117/1.OE.56.12.123107
Funding details: Number: 61377008, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 81427802, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The authors acknowledge the National Natural Science Foundation of China (Nos. 61377008 and 81427802). The authors have no relevant financial interests in this article and no potential conflicts of interest to disclose.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<291>
Accession number:20183705811725
Title:Study on resin layer polishing of carbon fiber mirror based on ion beam figuring
Authors:Ding, Jiao Teng (1, 2); Fan, Xue Wu (1); Xu, Liang (1); Ma, Zhen (1); Xie, Yong Jie (1); Wang, Yong Jie (1); Luo, Yao (3)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, Shannxi, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Xi'an Branch of China Academy of Space Technology, Shannxi, Xi'an; 710100, China
Source title:ICCM International Conferences on Composite Materials
Abbreviated source title:ICCM Int. Conf. Compos. Mater.
Volume:2017-August
Part number:1 of 1
Issue title:21st International Conference on Composite Materials, ICCM 2017
Issue date:2017
Publication year:2017
Language:English
Document type:Conference article (CA)
Conference name:21st International Conference on Composite Materials, ICCM 2017
Conference date:August 20, 2017 - August 25, 2017
Conference location:Xi'an, China
Conference code:138793
Publisher:International Committee on Composite Materials
Abstract:Based on the advantages of stress-free and non-liquid environment, ion beam polishing is the ideal processing technology for the Resin modified layer polishing of the carbon fiber mirror. Since the glass transition temperature of the resin is low, the energy absorbed by the surface of the mirror during ion beam processing can cause localized high temperatures, which can lead to the risk of resin softening. The finite element analysis software was used to simulate the heat transfer process of Ion beam acting on the resin modified layer. The optimum process parameters of the ion beam polishing were determined. At the same time, the resin layer surface polishing test was completed. The experimental results show that the surface polishing of the resin modified layer can be achieved by ion beam processing, and it has the convergence property and the correctness of the theoretical model is Verified. 2017 International Committee on Composite Materials. All rights reserved.
Number of references:8
Funding details: Number: 51402351, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work has been supported by the National Natural Science Foundation of China under Grant No.51402351.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<292>
Accession number:20172403788917
Title:A General Framework for Edited Video and Raw Video Summarization
Authors:Li, Xuelong (1); Zhao, Bin (2); Lu, Xiaoqiang (1)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Center for OPTical IMagery Analysis and Learning, Northwestern Polytechnical University, Xi'an; 710072, China
Corresponding author:Lu, Xiaoqiang
Source title:IEEE Transactions on Image Processing
Abbreviated source title:IEEE Trans Image Process
Volume:26
Issue:8
Issue date:August 2017
Publication year:2017
Pages:3652-3664
Article number:7904630
Language:English
ISSN:10577149
CODEN:IIPRE4
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In this paper, we build a general summarization framework for both of edited video and raw video summarization. Overall, our work can be divided into three folds. 1) Four models are designed to capture the properties of video summaries, i.e., containing important people and objects (importance), representative to the video content (representativeness), no similar key-shots (diversity), and smoothness of the storyline (storyness). Specifically, these models are applicable to both edited videos and raw videos. 2) A comprehensive score function is built with the weighted combination of the aforementioned four models. Note that the weights of the four models in the score function, denoted as property-weight, are learned in a supervised manner. Besides, the property-weights are learned for edited videos and raw videos, respectively. 3) The training set is constructed with both edited videos and raw videos in order to make up the lack of training data. Particularly, each training video is equipped with a pair of mixing-coefficients, which can reduce the structure mess in the training set caused by the rough mixture. We test our framework on three data sets, including edited videos, short raw videos, and long raw videos. Experimental results have verified the effectiveness of the proposed framework. 1992-2012 IEEE.
Number of references:53
Main heading:Video recording
Controlled terms:Mixing
Uncontrolled terms:Mixing coefficient - property-weight - Score function - Training data - Training sets - Video contents - Video summaries - Video summarization
Classification code:716.4 Television Systems and Equipment - 802.3 Chemical Operations
DOI:10.1109/TIP.2017.2695887
Funding details: Number: LSIT201408, Acronym: -, Sponsor: -;Number: KGZD-EWT03, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: QYZDB-SSW-JSC015, Acronym: -, Sponsor: -;Number: 61472413, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61761130079, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under Grant 61472413 and Grant 61761130079, the Key Research Program of the Chinese Academy of Sciences under Grant KGZD-EWT03, the Open Research Fund of the Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences under Grant LSIT201408, and the Young Top-notch Talent Program of Chinese Academy of Sciences under Grant QYZDB-SSW-JSC015.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<293>
Accession number:20180304654851
Title:Design and analysis of push-broom optical camera's following windows
Authors:Chen, Su (1); Wang, Hu (1); Xue, Yaoke (1); Liu, Meiying (1); Wang, Lingguang (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, No. 17 Xinxi Road, Xi'an; 710119, China
Corresponding author:Chen, Su(qqq1111ppp@aliyun.com)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10463
Part number:1 of 1
Issue title:AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Issue date:2017
Publication year:2017
Article number:1046313
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614079
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133232
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:In order to solve the problem of push-broom optical camera's imagery quality difficult to content request which windows size is too large, the author proposed a kind of project for camera's following windows. The author analysed the characteristic of the push-broom optical camera's windows, and proposed the ideal model of the push-broom optical camera's windows. Simultaneously, analyzed the transformational rule of the windows' location and size in the ideal condition. The author proposed the design project of the push-broom optical camera's following windows according to the result of the ideal windows' analysis, and performed an analysis of kinematics simultaneously. Finally, the author designed and analyzed kinematics for the following windows in allusion to a certain push-broom optical camera. According the analysis result, this project could decrease a half size of the light opening area compare with the current technique. It could decrease the stray light's influence of the camera's imagery quality, the following windows move smoothly, and this project could be satisfied to the requirements of engineering use. 2017 SPIE.
Number of references:9
Main heading:Cameras
Controlled terms:Earth (planet) - Kinematics - Machine design - Stray light
Uncontrolled terms:Design and analysis - Design projects - Ideal model - Kinematics analysis - Mechanism design - Opening areas - Optical camera - Push-broom
Classification code:601 Mechanical Design - 741.1 Light/Optics - 742.2 Photographic Equipment - 931.1 Mechanics
DOI:10.1117/12.2284267
Funding details: Number: 2013YQ310799, Acronym: -, Sponsor: -;
Funding text:This research is supported by the Special Project on Development of National Key Instruments and Equipments (No. 2013YQ310799).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<294>
Accession number:20171703607511
Title:ADRC system of FSM for image motion compensation
Authors:Wang, Kaidi (1, 2); Su, Xiuqin (1); Li, Zhe (1); Wu, Shaobo (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, 17 Xinxi Road, Xi'an; 710119, China; (2) University of Chinese, Academy of Sciences, 19 A Yuquan Road, Beijing; 100049, China
Corresponding author:Su, Xiuqin
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:1025604
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:In order to increase the speed controlling accuracy of fast steering mirror (FSM) for image motion compensation and thus to increase the definition of picture taken by moving camera, active disturbance rejection control (ADRC) is designed. First, mathematical model of FSM driven by voice coil motor (VCM) is established. Next, ADRC algorithm and its simplified form in actual application are clarified. Finally, simulation research for controlled object is made. The result is compared to control effect of PID. Simulation curves demonstrate that the settling time of ADRC is 6 ms and the bandwidth of system attains 102.2 Hz, which are nearly the same as those of PID. When the error is very small, it can converge to zero at a faster rate if ADRC is used. When the same range disturbance is given to system, the relative error of ADRC reaches 0.050%, which is about 42% of that of PID. 2017 SPIE.
Number of references:9
Main heading:Disturbance rejection
Controlled terms:Motion compensation - Photonics - Position control
Uncontrolled terms:Active disturbance rejection controls - ADRC - Controlled objects - Fast steering mirror - Image motion compensation - Simulation curves - Simulation research - Voice coil motors
Classification code:731 Automatic Control Principles and Applications - 731.3 Specific Variables Control - 741.1 Light/Optics
Numerical data indexing:Frequency 1.02e+02Hz, Percentage 4.20e+01%, Percentage 5.00e-02%, Time 6.00e-03s
DOI:10.1117/12.2268727
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<295>
Accession number:20180404671170
Title:Design of an off-Axis reflective zoom optical system
Authors:Guo, Zhanli (1, 2); Yang, Hongtao (1); Mei, Chao (1); Yan, Aqi (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xinxi Road No17, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Yang, Hongtao
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104623M
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:With the limit of optical materials, it is difficult to design zoom optical systems which have long focal length by refractive systems with a simple configuration. All-reflective zoom optical systems could be lightweighted, compact and free of chromatic aberrations, and reflective optical systems can be unobscured by off-Axis mirrors and have very good application foreground. In this paper, an all-reflective zoom optical system was designed, the all-reflective zoom optical system worked in the band of 400~1000nm, the diameter of the pupil was 100mm, the F number was 6~15, focal length varied from 600~1500mm, field of view (FOV) was 2°×0.8°~0.8°×0.48°. The pixel size of detector was 10×10μm. The result showed that MTF was higher than 0.3 at 50lp/mm and the quality of the optical system approached the diffraction limit, which met the design demand. 2017 SPIE.
Number of references:8
Main heading:Optical systems
Controlled terms:Aberrations - Diffraction - Mirrors
Uncontrolled terms:All-reflective zoom - Chromatic aberration - Diffraction limits - Long focal lengths - Off-axis - Reflective mirrors - Reflective optical system - Zoom optical system
Classification code:741.3 Optical Devices and Systems
Numerical data indexing:Size 1.00e-01m, Size 4.00e-07m to 1.00e-06m, Size 6.00e-01m to 1.50e+00m
DOI:10.1117/12.2285188
Funding details: Number: No.Y629551213, Acronym: -, Sponsor: -;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;
Funding text:This work has been supported by the CAS "Light of West China" Program (No.Y629551213).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<296>
Accession number:20174204273439
Title:Structural evolution study of additions of Sb
Authors:Guo, Hai-Tao (1, 2); Zhang, Ming-Jie (1, 3); Xu, Yan-Tao (2); Xiao, Xu-Sheng (2); Yang, Zhi-Yong (1)
Author affiliation:(1) Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou; 221116, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi'an; 710119, China; (3) State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan; 430070, China
Corresponding author:Guo, Hai-Tao(guoht_001@opt.ac.cn)
Source title:Chinese Physics B
Abbreviated source title:Chin. Phys.
Volume:26
Issue:10
Issue date:October 2017
Publication year:2017
Article number:104208
Language:English
ISSN:16741056
E-ISSN:20583834
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:The structures of pseudo-binary GeS
Number of references:47
Main heading:Germanium compounds
Controlled terms:Antimony compounds - Atoms - Cadmium sulfide - Chalcogenides - Cobalt compounds - Geometry - Germanium - Glass - II-VI semiconductors - Raman spectroscopy - Structure (composition)
Uncontrolled terms:Chalcogenide glass - Corner sharing - Crystallization tendency - Network backbones - Pseudo-binaries - S-systems - Structural evolution - Structural unit
Classification code:549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 812.3 Glass - 921 Mathematics - 931.3 Atomic and Molecular Physics - 951 Materials Science
DOI:10.1088/1674-1056/26/10/104208
Funding details: Number: 2015JQ5141, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 61405240, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61475189, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61575086, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: KLALMD-2015-08, Acronym: -, Sponsor: -;
Funding text:?Project supported by the National Natural Science Foundation of China (Grant Nos. 61475189, 61405240, and 61575086), the Natural Science Basic Research Project in Shaanxi Province, China (Grant No. 2015JQ5141), and the Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, China (Grant No. KLALMD-2015-08). ?Corresponding author. E-mail: guoht 001@opt.ac.cn ?Corresponding author. E-mail: yangzhiyong@jsnu.edu.cn
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<297>
Accession number:20170403275293
Title:Penalized Linear Discriminant Analysis of Hyperspectral Imagery for Noise Removal
Authors:Lu, Ming (1, 2, 3); Hu, Luojia (3); Yue, Tianxiang (1); Chen, Ziyue (3); Chen, Bin (3); Lu, Xiaoqiang (4); Xu, Bing (3, 5)
Author affiliation:(1) State Key Laboratory of Resources and Environment Information System, Institute of Geographical Science and Natural Resources Research, Chinese Academy of Sciences, Beijing; 100101, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) State Key Lab of Remote Sensing Science, College of Global Change and Earth System Science, Beijing Normal University, Beijing; 100875, China; (4) Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (5) Ministry of Education Key Lab for Earth System Modelling, Center for Earth System Science, School of Environment, Tsinghua University, Beijing; 100084, China
Corresponding author:Xu, Bing
Source title:IEEE Geoscience and Remote Sensing Letters
Abbreviated source title:IEEE Geosci. Remote Sens. Lett.
Volume:14
Issue:3
Issue date:March 2017
Publication year:2017
Pages:359-363
Article number:7812585
Language:English
ISSN:1545598X
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:The existence of noise in hyperspectral ima-gery (HSI) seriously affects image quality. Noise removal is one of the most important and challenging tasks to complete before hyperspectral information extraction. Though many advances have been made in alleviating the effect of noise, problems, including a high correlation among bands and predefined structure of noise covariance, still prevent us from the effective implementation of hyperspectral denoising. In this letter, a new algorithm named the penalized linear discriminant analysis (PLDA) and noise adjusted principal components transformation (NAPCT) was proposed. PLDA was applied to search for the best noise covariance structure, while the NAPCT was employed to remove the noise. The results of the tests with both HJ-1A HSI and EO-1 Hyperion showed that the proposed PLDA-NAPCT method could remove the noise effectively and that it could preserve the spectral fidelity of the restored hyperspectral images. Specifically, the recovered spectral curves using the proposed method are visually more similar to the original image compared with the control methods; quantitative matrices, including the noise reduction ration and mean relative deviation, also showed that the PLDA-NAPCT produced less bias than the control methods. Furthermore, the PLDA-NAPCT method is sensor-independent, and it could be easily adapted for removing the noise from different sensors. 2017 IEEE.
Number of references:13
Main heading:Image denoising
Controlled terms:Discriminant analysis - Image analysis - Linear transformations - Mathematical transformations - Noise abatement - Principal component analysis - Remote sensing - Spectroscopy
Uncontrolled terms:Hyper-spectral imageries - Hyperspectral denoising - Hyperspectral imagery - Hyperspectral information - Linear discriminant analysis - Noise removal - Principal components transformations - Quantitative matrices
Classification code:716.1 Information Theory and Signal Processing - 751.4 Acoustic Noise - 921.3 Mathematical Transformations - 922 Statistical Methods - 922.2 Mathematical Statistics
DOI:10.1109/LGRS.2016.2643001
Funding details: Number: .2016YFA0600104, Acronym: -, Sponsor: -;Number: 41421001, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 91325204, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Key Research and Development Program of China under Grant.2016YFA0600104 and in part by the National Natural Science Foundation of China under Grant 91325204 and Grant 41421001.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<298>
Accession number:20171403544917
Title:Non-diffracting optical Bloch oscillations in hexagonal photonic lattices
Authors:Liu, Sheng (1); Rao, Bingjie (1); Wang, Meirong (1); Zhang, Peng (2); Xiao, Fajun (1); Gan, Xuetao (1); Zhao, Jianlin (1)
Author affiliation:(1) Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education, Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an; 710129, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:7
Issue date:April 3, 2017
Publication year:2017
Pages:7475-7482
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:Light beams undergoing optical Bloch oscillations (OBOs) in two-dimensional (2D) photonic lattices suffer from severe diffraction along the perpendicular direction to the oscillation plane. In this paper, we propose and demonstrate that such diffraction could be suppressed in hexagonal photonic lattices via sophisticated managements of the discrete diffraction. By positioning the Fourier spectrum of the beam to a special region in the Brillouin zone, the light driven by the OBO experiences normal and anomalous diffractions alternatively, leading to a non-diffracting propagation for a long distance. We show that non-diffracting OBOs can be implemented not only for Gaussian beam but also for other complex 2D beams including self-accelerating Airy beams and vortex beams. Our results provide novel insights into the diffraction or dispersion engineering of waves in periodic structures. 2017 Optical Society of America.
Number of references:26
Main heading:Optical lattices
Controlled terms:Diffraction - Gaussian beams - Photonics
Uncontrolled terms:Anomalous diffraction - Bloch oscillations - Brillouin zones - Discrete diffraction - Dispersion engineering - Fourier spectra - Nondiffracting - Two-dimensional (2D) photonic lattices
Classification code:711 Electromagnetic Waves - 741.1 Light/Optics - 744.8 Laser Beam Interactions
DOI:10.1364/OE.25.007475
Funding details: Number: U1630125, Acronym: -, Sponsor: NSAF Joint Fund;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 2016JQ6004, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 61675168, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11574389, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11304250, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11634010, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 3102015ZY057, Acronym: -, Sponsor: -;Number: -, Acronym: -, Sponsor: China Academy of Engineering Physics THz Science and Technology Foundation;
Funding text:Natural National Science Foundation (NSFC) (61675168, 11634010, 11304250, and 11574389); Joint Fund of the National Natural Science Foundation Committee of China Academy of Engineering Physics (NSAF) (U1630125); the Fundamental Research Funds for the Central Universities (3102015ZY057); the Natural Science Basic Research Plan in Shaanxi Province of China (2016JQ6004).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<299>
Accession number:20170603332883
Title:Sheared-beam imaging target reconstruction based on all-phase spectrum analysis
Authors:Chen, Ming-Lai (1); Luo, Xiu-Juan (1); Zhang, Yu (1); Lan, Fu-Yang (1); Liu, Hui (1); Cao, Bei (1); Xia, Ai-Li (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Chen, Ming-Lai(shuxuemlchen@163.com)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:2
Issue date:January 20, 2017
Publication year:2017
Article number:024203
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:Sheared-beam imaging technique is considered to be a non-conventional speckle technique for remote imaging through turbulent medium. In this high resolution imaging technique, three beams are splitted from one laser source and illuminate a remote target simultaneously in shearing distribution. Each beam is modulated by a tiny frequency shift so that these beams can interfere and beat together. The returning speckle signals are received by an array of detectors. The primary algorithm for the signal processing and image reconstruction has been developed previously. However, the reconstructed image is deteriorated by the frequency drifting error and spectrum leakage. These frequency errors are always from the transmitter and scattered signals that are caused by spectrum-shift errors from acoustic-optic modulators, atmospheric turbulence, Doppler effects of moving targets, etc. To solve the problems mentioned above, in this paper we propose a new image reconstruction algorithm based on the all-phase spectrum analysis theory. The all-phase fast Fourier transform (FFT) spectrum analysis theory, which can effectively inhibit spectral leakage and correct speckle spectrum, is used to process the scattered signals. By searching for the accurate positions of the beat frequency components in the transformed frequency domain data, the speckle amplitude and phase difference frames can be extracted accurately. Based on the speckle phase-difference frames, the phase distribution of the wavefront is derived by least-square algorithm. The phase distribution in grid is highly coherent, in which each point is related to the phases of its four nearest neighbors. If an initial phase map is given or preset, the phase map of the wavefront can be estimated accurately by Gauss-Seidel method. Meanwhile, the amplitude of wavefront is obtained by the algebraic operation of speckle amplitude frames. The reconstructed wavefront is inverse Fourier transformed to yield a two dimensional image. A series of speckled images of the same object are averaged to reduce the speckle noise. The proposed method improves the ability of system imaging in the actual imaging environment. Simulation experiments validate the effectiveness of the proposed algorithm, and simulation results show that the proposed image reconstruction algorithm can inhibit the frequency errors from influencing imaging quality when there exist frequency errors in scattered signals. Thus, the imaging quality of the algorithm based on the all-phase FFT method is much better than that of the algorithm based on the traditional FFT method. The substantial usage of this technique is widely spread after the reconstruction algorithm has been optimized. 2017 Chinese Physical Society.
Number of references:20
Page count:6
Main heading:Spectrum analysis
Controlled terms:Atmospheric turbulence - Computerized tomography - Errors - Fast Fourier transforms - Frequency domain analysis - Image reconstruction - Inverse problems - Speckle - Wavefronts
Uncontrolled terms:Acoustic-optic modulators - All-phase spectrum analysis - Beam imaging - High-resolution imaging - Image reconstruction algorithm - Least square algorithms - Reconstruction algorithms - Two dimensional images
Classification code:443.1 Atmospheric Properties - 723.5 Computer Applications - 741.1 Light/Optics - 921.3 Mathematical Transformations
DOI:10.7498/aps.66.024203
Funding details: Number: 61505248, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Project supported by the National Natural Science Foundation of China (Grant No. 61505248).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<300>
Accession number:20171203485833
Title:Visible and near-infrared optical properties of Nd:CLNGG crystal waveguides formed by proton implantation
Authors:Liu, Chun-Xiao (1); Shen, Xiao-Liang (1); Li, Wei-Nan (2); Wei, Wei (1)
Author affiliation:(1) School of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing; 210023, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi'an; 710119, China
Corresponding author:Liu, Chun-Xiao(cxliu0816@sina.com)
Source title:Chinese Physics B
Abbreviated source title:Chin. Phys.
Volume:26
Issue:3
Issue date:March 2017
Publication year:2017
Article number:034207
Language:English
ISSN:16741056
E-ISSN:20583834
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:A Nd:CLNGG waveguide structure operated at wavelengths of both 632.8 nm and 1539 nm was demonstrated for the first time to our knowledge, which was produced by the 480-keV H+ ion implantation with a dose of 1.0 × 1017protons/cm2. Its propagating modes at 632.8 nm and 1539 nm were measured by the well-known prism coupling technique. The refractive index profile at either 632.8-nm wavelength or 1539-nm wavelength was optical barrier type in the proton-implanted Nd:CLNGG crystal optical waveguide, which was calculated by using the reflectivity calculation method. The near-field light intensity distributions were also simulated by the finite-difference beam propagation method in the visible and nearinfrared bands. 2017 Chinese Physical Society and IOP Publishing Ltd.
Number of references:24
Main heading:Infrared devices
Controlled terms:Beam propagation method - Ion implantation - Optical waveguides - Refractive index - Waveguides
Uncontrolled terms:Crystal waveguides - Finite difference beam propagation method - Prism coupling technique - Proton implantation - Proton implanted - Refractive index profiles - Visible and near infrared - Waveguide structure
Classification code:711 Electromagnetic Waves - 714.3 Waveguides - 741 Light, Optics and Optical Devices - 741.1 Light/Optics - 921 Mathematics
Numerical data indexing:Size 1.54e-06m, Size 6.33e-07m
DOI:10.1088/1674-1056/26/3/034207
Funding details: Number: -, Acronym: NUPT, Sponsor: Nanjing University of Posts and Telecommunications;Number: NY214159, Acronym: -, Sponsor: -;Number: ZSF0401, Acronym: -, Sponsor: -;Number: 61177084, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11405041, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Project supported by the National Natural Science Foundation of China (Grant Nos. 11405041 and 61177084), the Nanjing University of Posts and Telecommunications Scientific Foundation (NUPTSF), China (Grant No. NY214159), and the RCOCET, China (Grant No. ZSF0401).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<301>
Accession number:20173204034220
Title:Practical system for the generation of pulsed quantum frequency combs
Authors:Roztocki, Piotr (1); Kues, Michael (1, 2); Reimer, Christian (1); Wetzel, Benjamin (1, 3); Sciara, Stefania (1, 4); Zhang, Yanbing (1); Cino, Alfonso (4); Little, Brent E. (5); Chu, Sai T. (6); Moss, David J. (7); Morandotti, Roberto (1, 8, 9)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) School of Mathematical and Physical Sciences, University of Sussex, Falmer, Brighton; BN1 9RH, United Kingdom; (4) University of Palermo, Department of Energy, Information Engineering and Mathematical Models, Palermo, Italy; (5) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China; (6) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, Hong Kong; (7) Centre for Micro Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (8) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China; (9) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia
Corresponding author:Kues, Michael(michael.kues@emt.inrs.ca)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:16
Issue date:August 7, 2017
Publication year:2017
Pages:18940-18949
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:The on-chip generation of large and complex optical quantum states will enable low-cost and accessible advances for quantum technologies, such as secure communications and quantum computation. Integrated frequency combs are on-chip light sources with a broad spectrum of evenly-spaced frequency modes, commonly generated by four-wave mixing in optically-excited nonlinear micro-cavities, whose recent use for quantum state generation has provided a solution for scalable and multi-mode quantum light sources. Pulsed quantum frequency combs are of particular interest, since they allow the generation of single-frequency-mode photons, required for scaling state complexity towards, e.g., multi-photon states, and for quantum information applications. However, generation schemes for such pulsed combs have, to date, relied on micro-cavity excitation via lasers external to the sources, being neither versatile nor power-efficient, and impractical for scalable realizations of quantum technologies. Here, we introduce an actively-modulated, nested-cavity configuration that exploits the resonance pass-band characteristic of the micro-cavity to enable a mode-locked and energy-efficient excitation. We demonstrate that the scheme allows the generation of high-purity photons at large coincidence-to-accidental ratios (CAR). Furthermore, by increasing the repetition rate of the excitation field via harmonic mode-locking (i.e. driving the cavity modulation at harmonics of the fundamental repetition rate), we managed to increase the pair production rates (i.e. source efficiency), while maintaining a high CAR and photon purity. Our approach represents a significant step towards the realization of fully on-chip, stable, and versatile sources of pulsed quantum frequency combs, crucial for the development of accessible quantum technologies. 2017 Optical Society of America.
Number of references:42
Main heading:Quantum cryptography
Controlled terms:Accidents - Energy efficiency - Excited states - Four wave mixing - Light - Light sources - Locks (fasteners) - Microcavities - Photons - Quantum computers - Quantum optics
Uncontrolled terms:Cavity configuration - Harmonic mode locking - Multiphoton state - On-chip generation - Quantum information applications - Quantum state generation - Quantum technologies - Single-frequency mode
Classification code:525.2 Energy Conservation - 714 Electronic Components and Tubes - 722 Computer Systems and Equipment - 741.1 Light/Optics - 914.1 Accidents and Accident Prevention - 931.3 Atomic and Molecular Physics
DOI:10.1364/OE.25.018940
Funding details: Number: 7004189, Acronym: CityU, Sponsor: City University of Hong Kong;Number: -, Acronym: REA, Sponsor: Research Executive Agency;Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;Number: 074-U 01, Acronym: -, Sponsor: Government Council on Grants, Russian Federation;Number: 656607, Acronym: -, Sponsor: -;Number: PIOF-GA-2013-625466, Acronym: -, Sponsor: -;Number: XDB24030300, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;Number: DP150104327, Acronym: -, Sponsor: -;Number: -, Acronym: -, Sponsor: Canada Research Chairs;
Funding text:Natural Sciences and Engineering Research Council of Canada (NSERC) (Steacie, Strategic, Discovery, and Acceleration Grants Schemes, Vanier Canada Graduate Scholarships); MESI PSR-SIIRI Initiative; Canada Research Chair Program; Australian Research Council Discovery Projects (DP150104327); European Union?s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant (656607); CityU SRG-Fd program (7004189); Strategic Priority Research Program of the Chinese Academy of Sciences (XDB24030300); People Programme (Marie Curie Actions) of the European Union?s FP7 Programme under REA grant agreement INCIPIT (PIOF-GA-2013-625466); Government of the Russian Federation through the ITMO Fellowship and Professorship Program (Grant 074-U 01); 1000 Talents Sichuan Program (China) We thank R. Helsten for technical insights; J. Aza?a for providing some of the required experimental equipment; P. Kung from QPS Photronics for the help and processing equipment; as well as QuantumOpus and N. Bertone of OptoElectronics Components for their support and for providing us with state-of-the-art photon detection equipment.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<302>
Accession number:20160201782760
Title:Learning Sampling Distributions for Efficient Object Detection (Open Access)
Authors:Pang, Yanwei (1); Cao, Jiale (1); Li, Xuelong (2)
Author affiliation:(1) School of Electronic Information Engineering, Tianjin University, Tianjin; 300072, China; (2) Center for Optical Imagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:IEEE Transactions on Cybernetics
Abbreviated source title:IEEE Trans. Cybern.
Volume:47
Issue:1
Issue date:January 2017
Publication year:2017
Pages:117-129
Article number:7373611
Language:English
ISSN:21682267
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Object detection is an important task in computer vision and machine intelligence systems. Multistage particle windows (MPW), proposed by Gualdi et al., is an algorithm of fast and accurate object detection. By sampling particle windows (PWs) from a proposal distribution (PD), MPW avoids exhaustively scanning the image. Despite its success, it is unknown how to determine the number of stages and the number of PWs in each stage. Moreover, it has to generate too many PWs in the initialization step and it unnecessarily regenerates too many PWs around object-like regions. In this paper, we attempt to solve the problems of MPW. An important fact we used is that there is a large probability for a randomly generated PW not to contain the object because the object is a sparse event relative to the huge number of candidate windows. Therefore, we design a PD so as to efficiently reject the huge number of nonobject windows. Specifically, we propose the concepts of rejection, acceptance, and ambiguity windows and regions. Then, the concepts are used to form and update a dented uniform distribution and a dented Gaussian distribution. This contrasts to MPW which utilizes only on region of support. The PD of MPW is acceptance-oriented whereas the PD of our method (called iPW) is rejection-oriented. Experimental results on human and face detection demonstrate the efficiency and the effectiveness of the iPW algorithm. The source code is publicly accessible. 2016 IEEE.
Number of references:47
Main heading:Object detection
Controlled terms:Face recognition - Feature extraction - Object recognition
Uncontrolled terms:Efficient object detections - Initialization step - Machine intelligence - Proposal distribution - Publicly accessible - Random sampling - Sampling distribution - Uniform distribution
Classification code:723.2 Data Processing and Image Processing
DOI:10.1109/TCYB.2015.2508603
Funding details: Number: 2014CB340400, Acronym: -, Sponsor: -;Number: 61222109, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61503274, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61172121, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61271412, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Basic Research Program of China (973 Program) under Grant 2014CB340400, and in part by the National Natural Science Foundation of China under Grant 61172121, Grant 61271412, Grant 61503274, and Grant 61222109.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<303>
Accession number:20182205255953
Title:The simulation and experiment of a time-resolved polarization interferometer
Authors:Gao, Xiaohui (1); Yu, Tao (1); Wu, Yinhua (1); Wei, Ruyi (1); Xu, Guanghui (2)
Author affiliation:(1) Key Laboratory of Spectral Imaging Technology of CAS, Xi'An Institute of Optics and Precision Mechanics, Xi'an, China; (2) Library of xi'An Aeronautical University, Xi'an, China
Corresponding author:Gao, Xiaohui
Source title:Proceedings - 2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2017
Abbreviated source title:Proc. - Int. Congr. Image Signal Process., BioMed. Eng. Inf., CISP-BMEI
Volume:2018-January
Part number:1 of 1
Issue title:Proceedings - 2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2017
Issue date:July 2, 2017
Publication year:2017
Pages:1-5
Language:English
ISBN-13:9781538619377
Document type:Conference article (CA)
Conference name:10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2017
Conference date:October 14, 2017 - October 16, 2017
Conference location:Shanghai, China
Conference code:135071
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In a traditional dual optics routes Michelson interferometer, the critical time delay is acquired by scanning one mirror that needs a precision physical translation mechanism. The so-called translation mechanism usually dominates the risk, cost, power consumption, and performance of such instruments which limits the development of interference spectrometer. This paper describes the principle of a novel temporal modulated interference spectrometer that generates time delay by using birefringence crystal because of speed difference and the refraction indexes between the ordinary and the extraordinary component. A greater optical path difference can be abstained by cascading a series of wave plates that interlaced with a series of achromatic ferroelectric liquid crystal switches. Through the simulation analysis and experiment of the principle of polarization interference spectrometer, it demonstrates the validity of the instrument principle and data inversion method. 2017 IEEE.
Number of references:16
Main heading:Image processing
Controlled terms:Biomedical engineering - Birefringence - Liquid crystals - Michelson interferometers - Optical switches - Polarization - Spectrometers - Time delay
Uncontrolled terms:Ferroelectric liquid crystal - Imaging spectrometers - Interference spectrometer - Optical path difference - Polarization interferences - Polarization interferometer - Simulation analysis - Temporal modulations
Classification code:461.1 Biomedical Engineering - 713 Electronic Circuits - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 941.3 Optical Instruments
DOI:10.1109/CISP-BMEI.2017.8302038
Funding details: Number: 61405239, Acronym: -, Sponsor: National Natural Science Foundation of China;Number: 61405239, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:This research is sponsored by the National Natural Science Foundation of China (Grant No. 61405239, 11327303).The simulation and experiment was carried out in the Key Laboratory of Spectral Imaging Technology of CAS. Except for the financial support by the National Natural Science Foundation of China (Grant No. 61405239, 11327303), we also be sponsored by Chinese Academy of Defense Science and Technology Innovation Fund.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<304>
Accession number:20182405305274
Title:Reconfigurable microwave photonic differentiator based on an integrated Kerr frequency comb source
Authors:Xu, Xingyuan (1); Wu, Jiayang (1); Shoeiby, Mehrdad (2); Nguyen, Thach G. (2); Chu, Sai T. (3); Little, Brent E. (4); Morandotti, Roberto (5, 6, 7); Mitchell, Arnan (2); Moss, David J. (1)
Author affiliation:(1) Centre for Micro-Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (2) School of Engineering, RMIT University, Melbourne; VIC; 3000, Australia; (3) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, Hong Kong; (4) Xi'An Institute of Optics and Precision Mechanics Precision Mechanics, CAS, Xi'an, China; (5) INSR-énergie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X1S2, Canada; (6) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (7) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Source title:2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
Abbreviated source title:Opto-Electron. Commun. Conf., OECC Photonics Glob. Conf., PGC
Volume:2017-November
Part number:1 of 1
Issue title:2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
Issue date:November 17, 2017
Publication year:2017
Pages:1-2
Language:English
ISBN-13:9781509062935
Document type:Conference article (CA)
Conference name:2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
Conference date:July 31, 2017 - August 4, 2017
Conference location:Singapore, Singapore
Conference code:132616
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We propose and experimentally demonstrate a reconfigurable photonic RF differentiator based on a Kerr frequency comb generated in an integrated nonlinear microring resonator. The RF magnitude and phase responses are experimentally characterized. Systems demonstrations for Gaussian input signals are also performed. 2017 IEEE.
Number of references:8
Main heading:Microwave resonators
Controlled terms:Optical resonators - Photonics - Signal processing
Uncontrolled terms:Differentiators - Frequency combs - Gaussian inputs - Microring resonator - Microwave Photonics - Phase response - Reconfigurable - Reconfigurable photonics
Classification code:714 Electronic Components and Tubes - 716.1 Information Theory and Signal Processing - 741.3 Optical Devices and Systems
DOI:10.1109/OECC.2017.8114872
Funding details:
Funding text:We also performed systems demonstrations of real-time signal differentiation for the Gaussian input pulses shown in Fig. 4(a), with a full width half maximum (FWHM) of ~0.12 ns, generated by an arbitrary waveform generator, with the output signal after differentiation recorded by a fast sampling oscilloscope. As shown in Fig. 4(b), the measured output waveform agrees well with theory, which further confirms the feasibility of our approach. IV. CONCLUSION We demonstrate a reconfigurable photonic RF differentiator based on an integrated Kerr comb source, achieving good performance that agrees well with theory. ACKNOWLEDGMENTS This work was supported by the Australian Research Council Discovery Projects Program and NSERC Canada.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<305>
Accession number:20182405301283
Title:Noise reduction and analysis for Chang'E-1 Imaging Interferometer (IIM) data
Authors:Zhu, Feng (1); Liu, Jiahang (1); Chen, Tieqiao (1)
Author affiliation:(1) Laboratory of Remote Sensing and Intelligent Information System, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Source title:Proceedings of 2017 International Conference on Progress in Informatics and Computing, PIC 2017
Abbreviated source title:Proc. Int. Conf. Prog. Inf. Comput., PIC
Part number:1 of 1
Issue title:Proceedings of 2017 International Conference on Progress in Informatics and Computing, PIC 2017
Issue date:2017
Publication year:2017
Pages:148-153
Language:English
ISBN-13:9781538619773
Document type:Conference article (CA)
Conference name:5th International Conference on Progress in Informatics and Computing, PIC 2017
Conference date:December 15, 2017 - December 17, 2017
Conference location:Nanjing, China
Conference code:136571
Sponsor:IEEE Beijing Section; Nanjing University of Science and Technology; Shanghai University of Finance and Economics
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Imaging Interferometer (IIM) aboard Chang'E-1 is a Fourier transform imaging spectrometer, with goals to analyze the abundance and distribution of chemical elements on the lunar surface. IIM data suffer from various degradations, which will lead to misleading interpretations of IIM data and inaccuracy of subsequent applications. In this paper, we introduced a noise reduction method based on low-rank matrix decomposition theory. The restoration results are expected to have a better performance in image quality and spectral signatures according to visual and quantitative assessments. Meanwhile, we analyze the characteristic of the noise separated from IIM data using top spectral view of noise cube. The preliminary analysis of the noise characteristics contribute to optimize the data preprocessing of IIM data such as spectrum reconstruction and radiometric correction. 2017 IEEE.
Number of references:21
Main heading:Matrix algebra
Controlled terms:Chemical analysis - Chemical elements - Computation theory - Hyperspectral imaging - Image reconstruction - Interferometers - Noise abatement - Restoration - Spectroscopy
Uncontrolled terms:Chang'E-1 - Fourier transform imaging spectrometers - Imaging interferometers - Low-rank matrices - Noise reduction methods - Quantitative assessments - Radiometric corrections - Spectrum reconstruction
Classification code:721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 751.4 Acoustic Noise - 804 Chemical Products Generally - 921.1 Algebra - 941.3 Optical Instruments
DOI:10.1109/PIC.2017.8359532
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<306>
Accession number:20171703607557
Title:A novel approach of an absolute coding pattern based on Hamiltonian graph
Authors:Wang, Ya'nan (1, 2); Wang, Huawei (1); Hao, Fusheng (1, 2); Liu, Liqiang (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, China; (2) University of the Chinese Academy of Sciences, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102563K
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:In this paper, a novel approach of an optical type absolute rotary encoder coding pattern is presented. The concept is based on the principle of the absolute encoder to find out a unique sequence that ensures an unambiguous shaft position of any angular. We design a single-ring and a n-by-2 matrix absolute encoder coding pattern by using the variations of Hamiltonian graph principle. 12 encoding bits is used in the single-ring by a linear array CCD to achieve an 1080-position cycle encoding. Besides, a 2-by-2 matrix is used as an unit in the 2-track disk to achieve a 16-bits encoding pattern by using an area array CCD sensor (as a sample). Finally, a higher resolution can be gained by an electronic subdivision of the signals. Compared with the conventional gray or binary code pattern (for a 2nresolution), this new pattern has a higher resolution (2n？n) with less coding tracks, which means the new pattern can lead to a smaller encoder, which is essential in the industrial production. 2017 SPIE.
Number of references:9
Main heading:Signal encoding
Controlled terms:Encoding (symbols) - Hamiltonians - Photonics
Uncontrolled terms:Absolute encoders - Absolute rotary encoders - CCD sensors - Encoding patterns - Hamiltonian graph - Higher resolution - Industrial production - Optical encoder
Classification code:716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing - 741.1 Light/Optics
DOI:10.1117/12.2257823
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<307>
Accession number:20171103440249
Title:A Tunable Dispersion Waveguide Based on Graphene-Silicon Lateral Slot Geometric Structure (Open Access)
Authors:Li, Zhen (1); Liu, Hongjun (1, 2); Huang, Nan (1); Wang, Zhaolu (1); Han, Jing (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China
Corresponding author:Liu, Hongjun(liuhongjun@opt.ac.cn)
Source title:IEEE Photonics Journal
Abbreviated source title:IEEE Photon. J.
Volume:9
Issue:1
Issue date:February 2017
Publication year:2017
Article number:7823018
Language:English
ISSN:19430655
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:The dispersion profiles of a hybrid graphene-silicon (HyGS) slot waveguide with trilayers of graphene are investigated in this paper. By tuning the bias voltage on graphene layer, the zero dispersion wavelengths (ZDW) of HyGS slot waveguide can be tailored dynamically and effectively. With small disturbed voltage (6 V), a large ZDW tuning amount (200 nm) is achieved, without the need for changing the geometric structure of the waveguide, which has been verified with numerical simulation. Moreover, the dispersion curve of HyGS slot waveguide is flat enough (group velocity dispersion slope less than 2 ps/nm2·km), in the vicinity of ZDW. This waveguide is highly beneficial to such applications as integrated optics and graphene-related active optical devices. 2016 IEEE.
Number of references:34
Main heading:Waveguides
Controlled terms:Dispersion (waves) - Geometry - Graphene - Group velocity dispersion - Integrated optics - Nanostructures - Nonlinear optics - Silicon
Uncontrolled terms:Active optical devices - Dispersion curves - Dispersion profile - Geometric structure - Graphene layers - Sub-wavelength structures - Tunable dispersion - Zero-dispersion wavelength
Classification code:549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 714.3 Waveguides - 741.1.1 Nonlinear Optics - 761 Nanotechnology - 804 Chemical Products Generally - 921 Mathematics - 933 Solid State Physics
Numerical data indexing:Size 2.00e-07m, Voltage 6.00e+00V
DOI:10.1109/JPHOT.2017.2654447
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<308>
Accession number:20171703602276
Title:AID: A benchmark data set for performance evaluation of aerial scene classification
Authors:Xia, Gui-Song (1); Hu, Jingwen (1, 2); Hu, Fan (1, 2); Shi, Baoguang (3); Bai, Xiang (3); Zhong, Yanfei (1); Zhang, Liangpei (1); Lu, Xiaoqiang (4)
Author affiliation:(1) State Key Laboratory of Information Engineering, Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan; 430079, China; (2) Signal Processing Laboratory, School of Electronics Information, Wuhan University, Wuhan; 430072, China; (3) School of Electronics Information, Huazhong University of Science and Technology, Wuhan; 430074, China; (4) State Key Laboratory of Transient Optics and Photonics, Center for OPTical IMagery Analysis and Learning, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Xia, Gui-Song(guisong.xia@whu.edu.cn)
Source title:IEEE Transactions on Geoscience and Remote Sensing
Abbreviated source title:IEEE Trans Geosci Remote Sens
Volume:55
Issue:7
Issue date:July 2017
Publication year:2017
Pages:3965-3981
Article number:7907303
Language:English
ISSN:01962892
CODEN:IGRSD2
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Aerial scene classification, which aims to automatically label an aerial image with a specific semantic category, is a fundamental problem for understanding high-resolution remote sensing imagery. In recent years, it has become an active task in the remote sensing area, and numerous algorithms have been proposed for this task, including many machine learning and data-driven approaches. However, the existing data sets for aerial scene classification, such as UC-Merced data set and WHU-RS19, contain relatively small sizes, and the results on them are already saturated. This largely limits the development of scene classification algorithms. This paper describes the Aerial Image data set (AID): a large-scale data set for aerial scene classification. The goal of AID is to advance the state of the arts in scene classification of remote sensing images. For creating AID, we collect and annotate more than 10000 aerial scene images. In addition, a comprehensive review of the existing aerial scene classification techniques as well as recent widely used deep learning methods is given. Finally, we provide a performance analysis of typical aerial scene classification and deep learning approaches on AID, which can be served as the baseline results on this benchmark. 1980-2012 IEEE.
Number of references:100
Main heading:Classification (of information)
Controlled terms:Antennas - Benchmarking - Deep learning - Remote sensing - Semantics - Uranium compounds
Uncontrolled terms:Aerial images - Data-driven approach - High resolution remote sensing imagery - Large scale data sets - Performance analysis - Performance evaluations - Scene classification - Specific semantics
Classification code:716.1 Information Theory and Signal Processing
DOI:10.1109/TGRS.2017.2685945
Funding details: Number: 41501462, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under Contract 41501462 and Contract 91338113.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<309>
Accession number:20173904210946
Title:Design and Test of Portable Hyperspectral Imaging Spectrometer (Open Access)
Authors:Zou, Chunbo (1, 2); Yang, Jianfeng (1); Wu, Dengshan (1); Zhao, Qiang (1); Gan, Yuquan (1); Fu, Di (1); Yang, Fanchao (1); Liu, Hong (1); Bai, Qinglan (1); Hu, Bingliang (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 10049, China
Corresponding author:Zou, Chunbo(zouchb@opt.ac.cn)
Source title:Journal of Sensors
Abbreviated source title:J. Sensors
Volume:2017
Issue date:2017
Publication year:2017
Article number:7692491
Language:English
ISSN:1687725X
E-ISSN:16877268
Document type:Journal article (JA)
Publisher:Hindawi Limited, 410 Park Avenue, 15th Floor, 287 pmb, New York, NY 10022, United States
Abstract:We design and implement a portable hyperspectral imaging spectrometer, which has high spectral resolution, high spatial resolution, small volume, and low weight. The flight test has been conducted, and the hyperspectral images are acquired successfully. To achieve high performance, small volume, and regular appearance, an improved Dyson structure is designed and used in the hyperspectral imaging spectrometer. The hyperspectral imaging spectrometer is suitable for the small platform such as CubeSat and UAV (unmanned aerial vehicle), and it is also convenient to use for hyperspectral imaging acquiring in the laboratory and the field. 2017 Chunbo Zou et al.
Number of references:20
Main heading:Hyperspectral imaging
Controlled terms:Antennas - Spectral resolution - Spectrometers - Spectroscopy - Unmanned aerial vehicles (UAV)
Uncontrolled terms:Cubesat - Design and implements - Design and tests - Flight test - High spatial resolution - High spectral resolution - UAV (unmanned aerial vehicle)
Classification code:652.1 Aircraft, General - 741.1 Light/Optics - 741.3 Optical Devices and Systems
DOI:10.1155/2017/7692491
Funding details: Number: 61501456, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is supported by the National Natural Foundation of China under Grant 61501456.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<310>
Accession number:20180104612237
Title:Repetition rate controllable filter-driven four wave mixing laser
Authors:Bao, Hualong (1); Cooper, Andrew (1); Lauro, Luigi Di (1); Rowley, Maxwell (1); Chu, Sai T. (2); Little, Brent E. (3); Morandotti, Roberto (4); Moss, David J (5); Peccianti, Marco (1); Pasquazi, Alessia (1)
Author affiliation:(1) Emergent Photonics (Epic) Lab, Dept. of Physics and Astronomy, University of Sussex, BN1 9QH, United Kingdom; (2) City University of Hong Kong, Tat Chee Avenue, Hong Kong; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China; (4) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (5) Swinburne University of Technology, Hawthorn; VIC; 3122, Australia
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F82-CLEO_Europe 2017
Part number:1 of 1
Issue title:The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
Conference date:June 25, 2017 - June 29, 2017
Conference location:Munich, Germany
Conference code:139018
Publisher:OSA - The Optical Society
Number of references:4
Page count:1
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<311>
Accession number:20164803052067
Title:Proton-implanted optical waveguides fabricated in Er3+-doped phosphate glasses
Authors:Liu, Chun-Xiao (1); Shen, Xiao-Liang (1); Guo, Hai-Tao (2); Li, Wei-Nan (2); Wei, Wei (1)
Author affiliation:(1) School of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing; 210023, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi′an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi′an; 710119, China
Corresponding author:Liu, Chun-Xiao(cxliu0816@sina.com)
Source title:Optik
Abbreviated source title:Optik
Volume:131
Issue date:February 1, 2017
Publication year:2017
Pages:132-137
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Elsevier GmbH
Abstract:Er3+-doped phosphate glass is suitable to design and develop integrated photonic structures. Ion implantation is one of the most promising fabrication techniques for producing optical waveguides. In this work, we have combined Er3+-doped phosphate glass and ion implantation in order to improve the performances of waveguides. The proton-implanted Er3+-doped phosphate glass waveguides have been fabricated under implantation parameters with energies of (500 +550) keV and fluences of (1.0 + 2.0) × 1016ions/cm2. The guiding properties of the planar waveguide have been investigated at the wavelength of 632.8 nm through the prism-coupling system and the end-face coupling arrangement. Irradiation-induced damage and refractive index modulation have been simulated by the stopping and range of ions in matter 2010 and the intensity calculation method, respectively. It is an important step to the fabrication of rare-earth-doped optical integrated devices. 2016 Elsevier GmbH
Number of references:20
Main heading:Fabrication
Controlled terms:Glass - Ion implantation - Ions - Optical waveguides - Rare earths - Refractive index - Waveguides
Uncontrolled terms:Fabrication technique - Guiding properties - Implantation parameters - Integrated photonics - Optical integrated devices - Phosphate glass - Refractive index modulation - Stopping and range of ions in matters
Classification code:714.3 Waveguides - 741.1 Light/Optics - 804.2 Inorganic Compounds - 812.3 Glass
Numerical data indexing:Size 6.33e-07m
DOI:10.1016/j.ijleo.2016.11.080
Funding details: Number: ZSF0401, Acronym: -, Sponsor: -;Number: NY214159, Acronym: -, Sponsor: -;Number: 61177084, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11405041, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 11405041 and 61177084 ), and NUPTSF (Grant No. NY214159 ), and Research Center of Optical Communications Engineering & Technology , Jiangsu Province (Grant No. ZSF0401 ).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<312>
Accession number:20180304652990
Title:Brownian dynamics of the optically trapped spinning microparticles in low pressures
Authors:Lang, Mengjiao (1); Xiong, Wei (1); Xiao, Guangzong (1, 2); Han, Xiang (1); Tang, Jianxun (1)
Author affiliation:(1) College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha; 410073, China; (2) State Key Laboratory of Transient Optics and Photonic, Chinese Academy of Sciences, Xian; 710068, China
Corresponding author:Xiao, Guangzong(xiaoguangzong@nudt.edu.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10460
Part number:1 of 1
Issue title:AOPC 2017: Optoelectronics and Micro/Nano-Optics
Issue date:2017
Publication year:2017
Article number:1046010
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614017
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optoelectronics and Micro/Nano-Optics, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133231
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Optical trap has become a powerful tool of biology and physics, since it has some useful functions such as optical rotator, optical spanner and optical binding. We present the translational motions in the transverse plane of a 4.4μm-diameter vaterite particle which is optically trapped in low pressures utilizing the Monte-Carlo method. We find that the air pressure around the microparticle plays an important part in the determination of dynamics of the trapped particle. According to the energy equipartition theorem, the position fluctuations of the optically trapped particle satisfy Maxwell-Bolzmann distributions. We present the features of particles' displacements and velocities changing with air pressures in detail, and find that the modulation of the trap stiffness makes a higher position variance. The mechanical quality factor Q larger than 10 induces a high peak of power spectral density. Our research presents a powerful tool towards further discovery of dynamical characteristics of optically trapped Brownian particles in low air pressures. 2017 SPIE.
Number of references:29
Main heading:Optical tweezers
Controlled terms:Atmospheric pressure - Brownian movement - Modulation - Monte Carlo methods - Spectral density
Uncontrolled terms:Ballistic motions - Dynamical characteristics - Mechanical quality factors - Position fluctuations - Position stability - Power spectrum density - Rotational modulation - Translational motions
Classification code:443.1 Atmospheric Properties - 744.9 Laser Applications - 801.3 Colloid Chemistry - 922.2 Mathematical Statistics
DOI:10.1117/12.2284450
Funding details: Number: 2017JJ3363, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The project is supported by Hunan Provincial Natural Science Foundation of China(2017JJ3363), and Open Research
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<313>
Accession number:20171503564241
Title:3 W narrow-linewidth ultra-short wavelength operation near 1707 nm in thulium-doped silica fiber laser with bidirectional pumping
Authors:Xiao, Xusheng (1, 2); Guo, Haitao (1); Yan, Zhijun (1); Wang, Hushan (1); Xu, Yantao (1); Lu, Min (1); Wang, Yishan (1); Peng, Bo (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi’an; Shaanxi; 710119, China; (2) Graduate School of Chinese Academy of Sciences (CAS), Beijing; 100049, China
Corresponding author:Guo, Haitao(guoht_001@opt.ac.cn)
Source title:Applied Physics B: Lasers and Optics
Abbreviated source title:Appl Phys B
Volume:123
Issue:4
Issue date:April 1, 2017
Publication year:2017
Article number:135
Language:English
ISSN:09462171
CODEN:APBOEM
Document type:Journal article (JA)
Publisher:Springer Verlag
Abstract:We have developed an ultra-short wavelength operation of all-fiber Tm-doped laser system, in which the laser system was structured in a FBGs based linear cavity with FBG associated bidirectional pump mechanism at 1550 nm. The laser yielded 3.15 W of continuous-wave output at 1706.75 nm with a narrow-linewidth of ~50 pm. A high reflectivity FBG (HR-FBG) at 1550 nm was used to reflect the residual pump light and achieve the bidirectional pump mechanism. The maximum slope efficiency was improved from 23.2% without HR-FBG to 42.1% with HR-FBG at 1550 nm and the lowest pump threshold was reduced from 1.6 to 0.8 W accordingly. In the experiment, we have also investigated the dependencies of the slope efficiencies and pump threshold of the laser versus the length of active fiber and reflectivity of the output mirror (FBG) in detail. It is indisputable that the development of 1.7 μm silicate fiber lasers with Watt-level output power will open up a number of promising application windows. 2017, Springer-Verlag Berlin Heidelberg.
Number of references:26
Main heading:Pumping (laser)
Controlled terms:Efficiency - Fiber lasers - Fibers - Laser mirrors - Reflection - Silica - Silicates - Thulium
Uncontrolled terms:Bidirectional pumping - Continuous Wave - High reflectivity - Narrow-line width - Output mirrors - Short wavelengths - Silicate fibers - Slope efficiencies
Classification code:547.2 Rare Earth Metals - 744 Lasers - 913.1 Production Engineering
Numerical data indexing:Percentage 2.32e+01%, Percentage 4.21e+01%
DOI:10.1007/s00340-017-6713-z
Funding details: Number: 2015JQ5141, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61475189, Acronym: -, Sponsor: National Aerospace Science Foundation of China;Number: 61405241, Acronym: -, Sponsor: National Aerospace Science Foundation of China;
Funding text:This work was financially supported by the West Light Foundation from Chinese Academy of Sciences (CAS), the National Nature Science Foundation of China (Grants Nos. 61475189 and 61405241), and Natural Science Basic Research Project in Shaanxi Province (Grants No 2015JQ5141).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<314>
Accession number:20170603336337
Title:Real-time image haze removal using an aperture-division polarimetric camera
Authors:Zhang, Wenfei (1, 2, 3); Liang, Jian (1, 3); Ren, Liyong (1); Ju, Haijuan (1, 3); Qu, Enshi (1); Bai, Zhaofeng (1); Tang, Yao (4); Wu, Zhaoxin (2)
Author affiliation:(1) Research Department of Information Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Department of Electronics Science and Technology, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China; (4) Xi'an University of Posts and Telecommunication, Xi'an; 710121, China
Corresponding author:Ren, Liyong(renliy@opt.ac.cn)
Source title:Applied Optics
Abbreviated source title:Appl. Opt.
Volume:56
Issue:4
Issue date:February 1, 2017
Publication year:2017
Pages:942-947
Language:English
ISSN:1559128X
E-ISSN:21553165
CODEN:APOPAI
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:Polarimetric dehazing methods have been proven to be effective in enhancing the quality of images acquired in turbid media. We report a new full-Stokes polarimetric camera, which is based on the division of aperture structure. We design a kind of automatic polarimetric dehazing algorithm and load it into the field programmable gate array (FPGA) modules of our designed polarimetric camera, achieving a real-time image haze removal with an output rate of 25 fps. We demonstrate that the image quality can be significantly improved together with a good color restoration. This technique might be attractive in a range of real-time outdoor imaging applications, such as navigation, monitoring, and remote sensing. 2017 Optical Society of America.
Number of references:29
Main heading:Image enhancement
Controlled terms:Cameras - Demulsification - Field programmable gate arrays (FPGA) - Polarimeters - Remote sensing
Uncontrolled terms:Color restoration - Dehazing - Haze removal - Imaging applications - Output rate - Real time - Real time images - Turbid media
Classification code:721.2 Logic Elements - 742.2 Photographic Equipment - 802.3 Chemical Operations - 941.3 Optical Instruments
DOI:10.1364/AO.56.000942
Funding details: Number: 61535015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61505246, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275149, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC) (61505246, 61275149, 61535015).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<315>
Accession number:20171403529431
Title:Effect of thermally induced birefringence on performance of KD？P electro-optics crystal with rectangular shape
Authors:Yin, Xingliang (1); Jiang, Menghua (1); Sun, Zhe (2); Hui, Yongling (1); Lei, Hong (1); Li, Qiang (1)
Author affiliation:(1) Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China; (2) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Jiang, Menghua(jmh@bjut.edu.cn)
Source title:Applied Optics
Abbreviated source title:Appl. Opt.
Volume:56
Issue:10
Issue date:April 1, 2017
Publication year:2017
Pages:2893-2900
Language:English
ISSN:1559128X
E-ISSN:21553165
CODEN:APOPAI
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:In this paper, we present what we believe is the first demonstration of a new rectangular KD？P crystal as an electro-optic switch and calculations of the stress-induced birefringence and depolarization loss in the crystal. We simulated and experimentally demonstrate the thermal depolarization loss of crystal in both cylindrical and rectangular shape. The results show that by using a rectangular KD？P crystal, the effects of the thermally induced birefringence and depolarization can be lessened. 2017 Optical Society of America.
Number of references:13
Main heading:Birefringence
Controlled terms:Depolarization
Uncontrolled terms:Electro-optic switch - Rectangular shapes - Stress induced birefringence - Thermally induced birefringence
Classification code:741.1 Light/Optics
DOI:10.1364/AO.56.002893
Funding details: Number: 4112005, Acronym: -, Sponsor: Natural Science Foundation of Beijing Municipality;Number: ZDYZ2013-2, Acronym: -, Sponsor: -;Number: 61378023, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC) (61378023); Natural Science Foundation of Beijing Municipality (4112005); National Research and Development Projects (ZDYZ2013-2).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<316>
Accession number:20172703888612
Title:Double line and tubular depressed cladding waveguides written by femtosecond laser irradiation in PTR glass
Authors:Zhang, Y.J. (1, 2); Zhang, G.D. (2); Bai, J. (2); Chen, C.L. (1); Stoian, R. (3); Cheng, G.H. (2)
Author affiliation:(1) Shaanxi Key Laboratory for Condensed Matter Structure and Properties, Northwestern Polytechnical University, Xi'an; 710129, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (3) Laboratoire Hubert Curien, UMR 5516 CNRS, Université de Lyon, Université Jean Monnet, Saint Etienne; 42000, France
Corresponding author:Cheng, G.H.(gcheng@opt.ac.cn)
Source title:Optical Materials Express
Abbreviated source title:Opt. Mater. Express
Volume:7
Issue:7
Issue date:2017
Publication year:2017
Pages:2626-2635
Language:English
E-ISSN:21593930
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:Depressed cladding concepts such as double line depressed index and tubular low index cladding waveguide structures were fabricated in bulk photo-thermo-refractive glass using femtosecond laser pulses. Effects of the writing laser power, waveguide geometrical structures and heat treatment on the light guiding properties were investigated. The results show that depressed cladding tubular waveguide design exhibits better guiding performances than double line waveguides in PTR glass. For the tubular cladding waveguide, single and multimode fields can be obtained for a wide processing parameter window. The simulations agree well with the experiment results. Moreover, the normalized frequency can be tuned and the quality of the depressed cladding tubular waveguide can be improved by eliminating uneven stress distribution after heat treatment. 2017 Optical Society of America.
Number of references:28
Main heading:Waveguides
Controlled terms:Cladding (coating) - Femtosecond lasers - Glass - Heat treatment - Laser pulses
Uncontrolled terms:After-heat treatment - Depressed cladding - Geometrical structure - Low index claddings - Normalized frequencies - Photo-thermo-refractive glass - Processing parameters - Waveguide structure
Classification code:537.1 Heat Treatment Processes - 714.3 Waveguides - 744.1 Lasers, General - 812.3 Glass
DOI:10.1364/OME.7.002626
Funding details: Number: -, Acronym: -, Sponsor: Soochow University;Number: 61471301, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61378019, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61223007, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The corresponding author thanks Prof. Kuaisheng Zou in SooChow University for sample HT.National Natural Science Foundation of China (61378019, 61223007, 61471301).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<317>
Accession number:20173404061253
Title:An improved non-uniformity correction algorithm and its hardware implementation on FPGA
Authors:Rong, Shenghui (1); Zhou, Huixin (1); Wen, Zhigang (2, 3); Qin, Hanlin (1); Qian, Kun (1); Cheng, Kuanhong (1)
Author affiliation:(1) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an, China; (2) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, China; (3) Key Laboratory of Spectral Imaging Technology CAS, Xi'an, China
Corresponding author:Zhou, Huixin(hxzhou@mail.xidian.edu.cn)
Source title:Infrared Physics and Technology
Abbreviated source title:Infrared Phys Technol
Volume:85
Issue date:September 2017
Publication year:2017
Pages:410-420
Language:English
ISSN:13504495
CODEN:IPTEEY
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:The Non-uniformity of Infrared Focal Plane Arrays (IRFPA) severely degrades the infrared image quality. An effective non-uniformity correction (NUC) algorithm is necessary for an IRFPA imaging and application system. However traditional scene-based NUC algorithm suffers the image blurring and artificial ghosting. In addition, few effective hardware platforms have been proposed to implement corresponding NUC algorithms. Thus, this paper proposed an improved neural-network based NUC algorithm by the guided image filter and the projection-based motion detection algorithm. First, the guided image filter is utilized to achieve the accurate desired image to decrease the artificial ghosting. Then a projection-based moving detection algorithm is utilized to determine whether the correction coefficients should be updated or not. In this way the problem of image blurring can be overcome. At last, an FPGA-based hardware design is introduced to realize the proposed NUC algorithm. A real and a simulated infrared image sequences are utilized to verify the performance of the proposed algorithm. Experimental results indicated that the proposed NUC algorithm can effectively eliminate the fix pattern noise with less image blurring and artificial ghosting. The proposed hardware design takes less logic elements in FPGA and spends less clock cycles to process one frame of image. 2017
Number of references:24
Main heading:Image enhancement
Controlled terms:Field programmable gate arrays (FPGA) - Focusing - Hardware - Infrared detectors - Infrared imaging - Integrated circuit design - Motion analysis - Neural networks - Signal detection
Uncontrolled terms:Correction coefficients - Detection algorithm - Guided filters - Hardware implementations - Infrared focal plane arrays - Infrared image sequence - Motion detection - Nonuniformity correction
Classification code:605 Small Tools and Hardware - 714.2 Semiconductor Devices and Integrated Circuits - 716.1 Information Theory and Signal Processing - 721.2 Logic Elements - 723.2 Data Processing and Image Processing - 746 Imaging Techniques - 944.7 Radiation Measuring Instruments
DOI:10.1016/j.infrared.2017.07.007
Funding details: Number: 2014AA8098089C, Acronym: -, Sponsor: -;Number: 61265006, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61675160, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61401343, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:We would like to express our sincere appreciation to the anonymous reviewers for their insightful and valuable comments, which have greatly helped us in improving the quality of the paper. This work is partially supported by the National Natural Science Foundation of China (Nos. 61675160, 61265006 and 61401343), and the 863 Program of China (2014AA8098089C).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<318>
Accession number:20171403517380
Title:Research of nested X-ray concentrator for future X-ray timing astronomy
Authors:Sheng, Lizhi (1, 2); Zhao, Baosheng (1); Qiang, Pengfei (1); Liu, Duo (1)
Author affiliation:(1) Xian Institute of Optics and Precision Mechanics of CAS, No. 17 Xinxi Road, Xian, China; (2) State Key Laboratory of Geo-Information Engineering, No.1 Yanta Road, Xian, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10328
Part number:1 of 1
Issue title:Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics
Issue date:2017
Publication year:2017
Article number:103280M
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510611009
Document type:Conference article (CA)
Conference name:31st International Congress on High-Speed Imaging and Photonics
Conference date:November 6, 2016 - November 10, 2016
Conference location:Osaka, Japan
Conference code:126843
Publisher:SPIE
Abstract:X-ray grazing incidence optics are widely used in X-ray astronomy, especially for imaging payloads Wolter optics are the most workhorse. However, as there are two cascaded mirrors in Wolter type, the efficiency is quite low after two reflections. In this paper a kind of nested conical concentrator is developed with only one reflection to concentrate the X-ray photons and obtain the timing information. The mirror length is 200mm, the mirror foils cover from 38.8 to 100mm in diameter. D263T glass of 0.3mm thickness is used as mirror substrate with Iridium film deposited in order to improve the X-ray reflection. The D263T glass is slumped at 580°C with precisely machined and polished mold. 3D printed resin serves as upper mold for glass cutting. The quality of mirror substrate is mainly determined by the surface of forming mandrel. As the surface roughness is quite important for X-ray reflection, after deposition it is tested with interferometer and AFM, and the roughness is 0.6nm. Mirror integration based on visible light is built, and the conical mirrors are assembled and adjusted by real time monitoring for the focal point of visible light. With the monochromic X-ray source, the concentrator efficiency is tested as 38%@1.49keV, 20%@4.51keV. The focal point is Φ8.2mm in Xray, with 80% of its energy encircled in a 4mm width. This kind of X-ray concentrator could be used in X-ray navigation, X-ray communication and other X-ray timing astronomy. 2017 SPIE.
Number of references:3
Main heading:Mirrors
Controlled terms:Astronomy - Concentration (process) - Glass - High speed cameras - Light - Molds - Surface roughness - Timing circuits - X ray optics
Uncontrolled terms:Conical concentrators - Imaging payloads - Real time monitoring - Timing information - X ray mirrors - X ray reflection - X-ray astronomy - X-ray grazing incidence
Classification code:657.2 Extraterrestrial Physics and Stellar Phenomena - 713.4 Pulse Circuits - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 812.3 Glass - 931.2 Physical Properties of Gases, Liquids and Solids
Numerical data indexing:Percentage 8.00e+01%, Size 2.00e-01m, Size 3.00e-04m, Size 3.88e-02m to 1.00e-01m, Size 4.00e-03m, Size 6.00e-10m, Temperature 8.53e+02K
DOI:10.1117/12.2268991
Funding details: Number: Nos.SKLGIE2014-M-2-1, Acronym: -, Sponsor: -;Number: 61471357, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This research was supported by National Natural Science Foundation of China (Nos.61471357), West Light Foundation of The Chinese Academy of Sciences, and State Key Laboratory of Geo-Information Engineering Foundation (Nos.SKLGIE2014-M-2-1).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<319>
Accession number:20163602778835
Title:Adaptive 3D shape context representation for motion trajectory classification
Authors:Liu, Weihua (1); Li, Zuhe (2); Zhang, Geng (1); Zhang, Zhong (3)
Author affiliation:(1) Key Laboratory of Spectral Imaging Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an, China; (2) School of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou, China; (3) The University of Texas at Arlington, Texas, United States
Corresponding author:Liu, Weihua(lwh86117@163.com)
Source title:Multimedia Tools and Applications
Abbreviated source title:Multimedia Tools Appl
Volume:76
Issue:14
Issue date:July 1, 2017
Publication year:2017
Pages:15413-15434
Language:English
ISSN:13807501
E-ISSN:15737721
CODEN:MTAPFB
Document type:Journal article (JA)
Publisher:Springer New York LLC
Abstract:The measurement of similarity between two motion trajectories is one of the fundamental task for motion analysis, perception and recognition. Previous research focus on 2D trajectory similarity measurement. With the advent of 3D sensors, it is possible to collect large amounts of 3D trajectory data for more precise motion representation. As trajectories in 3D space may often exhibit a similar motion pattern but may differ in location, orientation, scale, and appearance variations, the trajectory descriptor must be invariant to these degrees of freedom. Shape context is one of the rich local shape descriptors can be used to represent the trajectory in 2D space, however, rarely applied in the 3D motion trajectory recognition field. To handle 3D data, in this paper, we first naturally extend the shape context into the spatiotemporal domain by adopting a spherical neighborhood, and named it 3D Shape Context(3DSC). To achieve better global invariant on trajectories classification, the adaptive outer radius of 3DSC for extracting 3D Shape Context feature is proposed. The advantages of our proposed 3D shape context are: (1) It is invariant to motion trajectories translation and scale in the spatiotemporal domain; (2) It contains the whole trajectory points in the 3DSC ball volume, thus can achieve global information representation and is good for solving sub-trajectories problem; (3) It is insensitive to the appearance variations in the identical meaning trajectories, meanwhile, can greatly discriminate the distinct meaning trajectories. In trajectory recognition phase, we consider a feature-to-feature alignment between motion trajectories based on dynamic time warping and then use the one nearest neighbor (1NN) classifier for final accuracy evaluation. We test the performance of proposed 3D SC-DTW on UCI ASL large dataset, Digital hand dataset and the experimental results demonstrate the effectiveness of our method. 2016, Springer Science+Business Media New York.
Number of references:35
Main heading:Trajectories
Controlled terms:Degrees of freedom (mechanics) - Motion analysis - Statistical tests
Uncontrolled terms:Dynamic time warping - Gesture classifications - Gesture trajectories - Motion representation - Perception and recognition - Shape contexts - Spatio-temporal domains - Trajectory similarities
Classification code:723.2 Data Processing and Image Processing - 922.2 Mathematical Statistics - 931.1 Mechanics
DOI:10.1007/s11042-016-3841-0
Funding details: Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61501456, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is supported by National Natural Science Foundation of China (Grant no. 61501456), ?Light of West China? Program of Chinese Academy of Sciences.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<320>
Accession number:20171603572063
Title:Li
Authors:Xu, Biyi (1); Li, Wenlong (2, 3); Duan, Huanan (1); Wang, Haojing (2, 3); Guo, Yiping (1); Li, Hua (1); Liu, Hezhou (1)
Author affiliation:(1) State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai; 200240, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Duan, Huanan(hd1@sjtu.edu.cn)
Source title:Journal of Power Sources
Abbreviated source title:J Power Sources
Volume:354
Issue date:2017
Publication year:2017
Pages:68-73
Language:English
ISSN:03787753
CODEN:JPSODZ
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:This paper proposes a strategy to stabilize the garnet/Li interface by introducing Li
Number of references:39
Main heading:Phosphorus compounds
Controlled terms:Electrolytes - Garnets - Lanthanum compounds - Plating - Tantalum compounds - Zirconium compounds
Uncontrolled terms:Interface stabilities - Interfacial compatibility - Li ion conductivities - Li3PO4 - Lithium anode - Lithium dendrite - Lithium garnets - Voltage polarization
Classification code:539.3 Metal Plating - 702 Electric Batteries and Fuel Cells - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally
Numerical data indexing:Time 1.19e+05s
DOI:10.1016/j.jpowsour.2017.04.026
Funding details: Number: USCAST-2015-40, Acronym: -, Sponsor: -;Number: -, Acronym: SJTU, Sponsor: Shanghai Jiao Tong University;Number: 15X190030002, Acronym: -, Sponsor: -;Number: 11304198, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is financially supported by the Natural Science Foundation of China (no. 11304198), the SAST-SJTU fund (USCAST-2015-40), the SJTU Materials Genome Initiative Center grant (15X190030002), and SMC-Chen Xing Young Scholar Award of SJTU. Instrumental Analysis Center of Shanghai Jiao Tong University and National Engineering Research Center for Nanotechnology are gratefully acknowledged for assisting with relevant analyses.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<321>
Accession number:20171903638504
Title:The Gain and Time Characteristics of Microchannel Plates in Various Channel Geometries
Authors:Chen, Lin (1, 2, 3); Wang, Xingchao (4); Tian, Jinshou (1, 5); Zhao, Tianchi (6); Liu, Chunliang (2); Liu, Hulin (1); Wei, Yonglin (1); Sai, Xiaofeng (1); Wang, Xing (1); Sun, Jianning (4); Si, Shuguang (4); Chen, Ping (1); Tian, Liping (1); Hui, Dandan (1); Guo, Lehui (1)
Author affiliation:(1) Key Laboratory of Ultrafast Photoelectric Diagnostics Technology, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Xi'An Jiaotong University, Xi'an; 710049, China; (3) Graduate School, Chinese Academy of Sciences, Beijing; 100049, China; (4) North Night Vision Technology Company, Ltd., Nanjing; 210110, China; (5) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China; (6) Institute of High Energy Physics, Chinese Academy of Sciences, Beijing; 100049, China
Source title:IEEE Transactions on Nuclear Science
Abbreviated source title:IEEE Trans Nucl Sci
Volume:64
Issue:4
Issue date:April 2017
Publication year:2017
Pages:1080-1086
Article number:7866880
Language:English
ISSN:00189499
CODEN:IETNAE
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Microchannel plates (MCPs) are widely used as electron, ion, and X-ray detectors. The gain factor and time resolution of the MCP are strongly dependent on its operating and geometry parameters (applied voltage, length-to-diameter ratio, bias angle, and electrode penetration depth). Measurements about this dependence are sparse and do not cover the full range of the parameters. In this paper, 3-D single channel models are developed in computer simulation technology studio suit to systematically and comprehensively calculate the MCP gain and time resolution for various operating and geometry parameters. Furman secondaries electron emission model is employed in our simulation. Simulated result of the gain versus bias voltage is validated by the available experimental data. Finally, geometry parameters of L = 373.6 μm, D =10 μm, h
Number of references:27
Main heading:Image storage tubes
Controlled terms:Bias voltage - Electron emission - Geometry - Microchannels - X ray detectors
Uncontrolled terms:Channel geometry - Computer simulation technology - gain - Length to diameter ratio - Micro channel plate - Time characteristics - Time resolution - Transit time spread
Classification code:713 Electronic Circuits - 714.1 Electron Tubes - 921 Mathematics
Numerical data indexing:Size 3.74e-04m, Size 5.00e-06m, Time 1.28e-10s, Time 1.90e-11s, Voltage 1.00e+03V
DOI:10.1109/TNS.2017.2676010
Funding details: Number: 2016YFF0100401, Acronym: -, Sponsor: -;Number: CXJJ-15S145, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 11305258, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 11305258, in part by the National Major Scientific Instruments and Equipment Development Project through the National Natural Science Foundation of China under Grant 2016YFF0100401, and in part by the Innovation Fund Project of National Defense Science and Technology, Chinese Academy of Sciences under Grant CXJJ-15S145.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<322>
Accession number:20174904498814
Title:Method of controlling optical surface roughness based on stray light requirements
Authors:Song, Yan-Song (1, 2); Yang, Jian-Feng (1); Li, Fu (1); Ma, Xiao-Long (1); Wang, Hong (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Song, Yan-Song(syansong@163.com)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:19
Issue date:October 5, 2017
Publication year:2017
Article number:194201
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:Scattering introduced by optical surface fabrication errors could degrade optical performance severely. Therefore, the optical designers are required to provide a roughness index for describing the specific surface or even all surfaces to ensure the final imaging performance. The surface root-mean-square (RMS) roughness is a common index to quantify surface topography. And there are also some available methods to acquire the surface RMS roughness based on bidirectional scattering distribution function theory or the angle spread function theory. However, the influence of the optical surface scattering on the optical system cannot be accurately revealed by the surface RMS roughness determined by these methods. On the one hand, the RMS roughness corresponds to an excessively wide spatial frequency range from 0 to 1/λ, where λ is the wavelength of the light. Consequently, it is difficult to measure the RMS roughness during manufacture. On the other hand, what really worsens the stray light performance of the system is only the surface profile located within a certain subinterval of the aforementioned frequency range, to put it in another way, the surface RMS roughness identified by the methods above is incompetent to quantify the amount of the energy that is surfacescattered to the detector. To address the issues above, in this paper we propose a novel approach to identifying the surface roughness. This method seeks to deduce the relation between optical surface RMS roughness and the stray light requirement of the system by dint of partial integrated scattering (PIS). In contrast to total integrated scattering, PIS counts the scattering light energy that could reach the detector. Hence, the RMS roughness identified in this way corresponds to the effective spatial frequency range that contributes to the stray light in the system. Firstly, the effective frequency range concerned with the system stray light level is identified through the analysis of the propagation path of the scattered light. Then, the surface RMS roughness would be measured within the established range according to the stray light requirement of the system and used to control the surface roughness as the roughness index during the optical manufacture process. The method not only considers the scattering as the surface characteristic, but also takes into account the influence of scattering on the system. Taking the solar magnetic field telescope (MFT) for example, the validity of the method is verified by comparing with the traditional methods. As manifested in the outcome, the effective frequency range of primary mirror is from 0 to 18 mm-1, and the surface RMS roughness identified in such a new way can stage the stray light performance of MFT in a more precise manner, which is more reliable to serve as a surface roughness index. 2017 Chinese Physical Society.
Number of references:22
Main heading:Surface roughness
Controlled terms:Distribution functions - Light scattering - Manufacture - Optical systems - Stray light - Surface scattering
Uncontrolled terms:Bi-directional scattering distribution functions - Optical manufacture - Optical surface roughness - Root mean square roughness - Solar magnetic fields - Stray light performance - Surface characteristics - Total integrated scatterings
Classification code:537.1 Heat Treatment Processes - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 922.1 Probability Theory - 931 Classical Physics; Quantum Theory; Relativity - 931.2 Physical Properties of Gases, Liquids and Solids
DOI:10.7498/aps.66.194201
Funding details: Number: U1231204, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Project supported by the National Natural Science Foundation of China (Grant No. U1231204).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<323>
Accession number:20172703874441
Title:Embedded nanogratings in bulk fused silica under non-diffractive Bessel ultrafast laser irradiation
Authors:Cheng, G. (1, 2); Rudenko, A. (1); D'Amico, C. (1); Itina, T.E. (1); Colombier, J.P. (1); Stoian, R. (1)
Author affiliation:(1) Laboratoire Hubert Curien, UMR 5516 CNRS, Université de Lyon, Université Jean Monnet, Saint Etienne; 42000, France; (2) State Key Laboratory of Transient Optics and Photonics, XIOPM, CAS, Xi'an; 710119, China
Source title:Applied Physics Letters
Abbreviated source title:Appl Phys Lett
Volume:110
Issue:26
Issue date:June 26, 2017
Publication year:2017
Article number:261901
Language:English
ISSN:00036951
CODEN:APPLAB
Document type:Journal article (JA)
Publisher:American Institute of Physics Inc.
Abstract:We report the formation of embedded nanogratings in bulk fused silica under quasi-stationary field patterns generated by ultrashort laser pulses in nondiffractive modes. The zero-order Bessel beam consists of almost non-propagative light pulses distributed along a narrow micron-sized channel sustained over a large non-diffracting length. Upon multipulse irradiation, a regular pattern of nanoplanes is formed across the channel, spaced at approximately λ/2n. Applying an electromagnetic scattering model [A. Rudenko et al., Phys. Rev. B 93, 075427 (2016)], we associate the formation of nanogratings with multiple scattering from randomly distributed scattering centers created by laser light. Constructive interference between the scattered wavelets leads to periodic excitation enhancement without requiring explicit synchronism conditions. Permanent material modifications are found whenever the local carrier densities are maximized towards the critical value. Multiple periodicities are predicted, either implicitly related to the coherent electromagnetic interaction or due to periodic field depletion and photon replenishment. 2017 Author(s).
Number of references:18
Main heading:Fused silica
Controlled terms:Irradiation - Ultrafast lasers - Ultrashort pulses
Uncontrolled terms:Constructive interference - Electromagnetic interactions - Electromagnetic scattering - Material modifications - Multi-pulse irradiation - Periodic excitations - Randomly distributed - Scattering centers
Classification code:744.1 Lasers, General - 812.3 Glass
DOI:10.1063/1.4987139
Funding details: Number: ANR-10-LABX-0075, Acronym: -, Sponsor: Labex;Number: ANR 2011 BS04010 NanoFlam, Acronym: ANR, Sponsor: Agence Nationale de la Recherche;Number: ANR 2011 BS09026 SmartLasir, Acronym: ANR, Sponsor: Agence Nationale de la Recherche;Number: ANR-11-IDEX-0007, Acronym: -, Sponsor: -;
Funding text:We acknowledge the Agence Nationale de la Recherche (Project Nos. ANR 2011 BS04010 NanoFlam and ANR 2011 BS09026 SmartLasir). We equally acknowledge the support of LABEX MANUTECH-SISE (ANR-10-LABX-0075) of the Universite de Lyon, within the program Investissements d'Avenir (ANR-11-IDEX-0007).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<324>
Accession number:20183705812596
Title:Properties analysis of composite materials for the manufacture of space mirror
Authors:Yang, Zhiyong (1, 2); Lei, Qin (2); Pan, Lingying (2); Tang, Zhanwen (2); Xie, Yongjie (3); Zhang, Boming (1); Sun, Jianbo (2); He, Xijun (2)
Author affiliation:(1) School of Material Science and Engineering, Beihang University, Beijing; 100191, China; (2) Aerospace Research Institute of Materials and Processing Technology, Beijing; 100076, China; (3) Xi’an institute of optics and precision Mechanics, Chinese academy of sciences, Xi’an; 710068, China
Corresponding author:Yang, Zhiyong(yzy512007@163.com)
Source title:ICCM International Conferences on Composite Materials
Abbreviated source title:ICCM Int. Conf. Compos. Mater.
Volume:2017-August
Part number:1 of 1
Issue title:21st International Conference on Composite Materials, ICCM 2017
Issue date:2017
Publication year:2017
Language:English
Document type:Conference article (CA)
Conference name:21st International Conference on Composite Materials, ICCM 2017
Conference date:August 20, 2017 - August 25, 2017
Conference location:Xi'an, China
Conference code:138793
Publisher:International Committee on Composite Materials
Abstract:This work puts forward requirements of carbon fiber composite for space mirror, and compares properties of common intermediate modulus and high modulus carbon fibers and common resins of composites. Results show that carbon fiber composite for manufacturing space mirror should select high modulus carbon fiber and high toughness resin matrix. High toughness cyanate ester resin C705 and domestic high modulus carbon fiber were selected for manufacturing the prototype space mirror. 2017 International Committee on Composite Materials. All rights reserved.
Number of references:9
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<325>
Accession number:20171303505688
Title:High peak power actively Q-switched mid-infrared fiber lasers at 3 μm
Authors:Shen, Yanlong (1, 2, 3, 4); Wang, Yishan (1, 5); Luan, Kunpeng (3); Chen, Hongwei (3); Tao, Mengmeng (3); Si, Jinhai (2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; Shaanxi; 710119, China; (2) Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an; Shaanxi; 710049, China; (3) State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology, Xi’an; Shaanxi; 710024, China; (4) University of Chinese Academy of Sciences, Beijing; 100049, China; (5) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; Shanxi; 030006, China
Corresponding author:Wang, Yishan(yshwang@opt.ac.cn)
Source title:Applied Physics B: Lasers and Optics
Abbreviated source title:Appl Phys B
Volume:123
Issue:4
Issue date:April 1, 2017
Publication year:2017
Article number:105
Language:English
ISSN:09462171
CODEN:APBOEM
Document type:Journal article (JA)
Publisher:Springer Verlag
Abstract:Diode-pumped pulsed Er3+-doped ZBLAN fiber lasers at 2.8 μm actively Q-switched by using an mechanical Q-switch with feedbacks of a protected gold mirror and a blazing grating were investigated, respectively. A pulse energy of 0.13 mJ and repetition rate of 10 kHz with a pulse width of 127.3 ns at 2.78 μm was obtained when using a protected gold mirror as the feedback. By replacing the mirror with a blazing grating in Littrow configuration, the wavelength of the Q-switched pulse train was tunable with over 100 nm tuning range from 2.71 to 2.82 μm and a linewidth of ~1.5 nm. A maxinmum pulse energy of up to 0.15 mJ and repetition rate of 10 kHz with a pulse width of 92.6 ns was achieved, yielding the maximum peak power of exceeding 1.6 kW. The pulse energy and peak power, to our knowledge, are the highest ever reported in the mid-infrared Q-switched fiber lasers. 2017, Springer-Verlag Berlin Heidelberg.
Number of references:26
Main heading:Pulse repetition rate
Controlled terms:Fiber lasers - Glass fibers - Gold - Infrared devices - Laser mirrors - Optical pumping - Pulsed lasers - Q switched lasers - Q switching
Uncontrolled terms:Actively Q-switched - High peak power - Littrow configuration - Pulse energies - Q-switched fiber lasers - Q-switched pulse - Repetition rate - Tuning ranges
Classification code:547.1 Precious Metals - 744 Lasers - 812.3 Glass
DOI:10.1007/s00340-017-6684-0
Funding details: Number: -, Acronym: SIMTech, Sponsor: Singapore Institute of Manufacturing Technology;Number: -, Acronym: -, Sponsor: CAS-SAFEA International Partnership Program for Creative Research Teams;Number: 11573058, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61690222, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: SKLLIM1503, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The authors acknowledge financial support from the CAS/SAFEA International Partnership Program for Creative Research Teams and National Natural Science Foundation of China (Grant Nos.11573058 and No.61690222). This work is also partially supported by the fund of the State Key Laboratory of Laser Interaction with Matter (No. SKLLIM1503). The authors are very grateful to Xiaohong Hu from State Key Laboratory of Transient Optics and Photonics and Biao Sun from Precision Measurements Group (Singapore Institute of Manufacturing Technology) for fruitful discussions.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<326>
Accession number:20174904512610
Title:Modeling and control of Takagi-Sugeno fuzzy hyperbolic model for a class of nonlinear systems
Authors:Li, Junmin (1); Wang, Jiaxian (1); Chen, Minglai (1, 2)
Author affiliation:(1) School of Mathematics and Statistics, Xidian University, Xi'an; 710071, China; (2) Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an, China
Corresponding author:Li, Junmin(jmli@mail.xidian.edu.cn)
Source title:Journal of Intelligent and Fuzzy Systems
Abbreviated source title:J. Intelligent Fuzzy Syst.
Volume:33
Issue:6
Issue date:2017
Publication year:2017
Pages:3265-3273
Language:English
ISSN:10641246
E-ISSN:18758967
Document type:Journal article (JA)
Publisher:IOS Press, Nieuwe Hemweg 6B, Amsterdam, 1013 BG, Netherlands
Abstract:In this paper, a Takagi-Sugeno (T-S) fuzzy hyperbolic model is proposed for the fuzzy control of a class of nonlinear systems. The consequence of the proposed model is a hyperbolic tangent dynamic model, and it is employed to represent the nonlinear system. By constructing a new Lyapunov function, the stability conditions of the open-loop T-S fuzzy hyperbolic system are derived via linear matrix inequalities (LMIs). Then, the parallel distributed compensation (PDC) method is used to design a fuzzy hyperbolic controller, and the asymptotic stability conditions of the closed-loop system are formulated via LMIs. The main advantage of the control based on T-S fuzzy hyperbolic model is that it can achieve small control amplitude via "soft" constraint control approach. Finally, the effectiveness and advantage of the proposed schemes are illustrated by a mathematical constructive example and the Van de Vusse example. 2017 - IOS Press and the authors. All rights reserved.
Number of references:41
Main heading:System stability
Controlled terms:Asymptotic stability - Closed loop systems - Feedback control - Fuzzy control - Hyperbolic functions - Linear matrix inequalities - Lyapunov functions - Nonlinear systems
Uncontrolled terms:Control amplitude - Fuzzy hyperbolic models - Linear Matrix Inequalities (LMIs) - Modeling and control - Parallel distributed compensation - Stability condition - T-S fuzzy - TakagiSugeno (T-S)
Classification code:731 Automatic Control Principles and Applications - 731.1 Control Systems - 921 Mathematics - 921.1 Algebra - 961 Systems Science
DOI:10.3233/JIFS-161780
Funding details: Number: 60974139, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61573013, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is supported by the National Natural Science Foundation of China under Grant No. 60974139 and 61573013.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<327>
Accession number:20173104014263
Title:Simulation of Light Field Imaging and Refocusing Models Based on Matrix Transformation
Authors:Xie, Pei-Yue (1, 2, 3); Yang, Jian-Feng (1); Xue, Bin (1); Chen, Guo-Qing (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Xi'dian University, Xi'an; 710071, China
Corresponding author:Xue, Bin(xuebin@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:5
Issue date:May 1, 2017
Publication year:2017
Article number:0510001
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Based on the double plane representation of the light field, aimed at the effect of light on the way of description influenced by coaxial translation, off-axis translation, coplanar rotation and off-planar rotation, and lens transformation between two reference plane of light field camera, this paper provided the corresponding matrix transformation equations. And using the transformation equations, the imaging model, sampling model, and radiation model of light field camera are established. Besides, on the view of light field coaxial space distance transformation, the digital refocusing process is deduced which can receive clearly imaging in any target scene point after got the imaging by focusing at a point. And moreover, by using the established model, the object is generated by computer simulation, and the model is used for digital refocusing on generation of features, the consistency of digital refocusing image and the directly focused images are verified. 2017, Science Press. All right reserved.
Number of references:12
Main heading:Linear transformations
Controlled terms:Cameras - Mathematical models - Mathematical transformations - Microlenses
Uncontrolled terms:Light fields - Matrix transformation - Micro-lens arrays - Planar rotation - Radiation modeling - Reference plane - Sampling model - Transformation equationss
Classification code:741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 921.3 Mathematical Transformations
DOI:10.3788/gzxb20174605.0510001
Funding details: Number: No.B17035, Acronym: -, Sponsor: -;Number: 41427805, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The National Natural Science Foundation of China (No.41427805)and the 111 Project(No.B17035).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<328>
Accession number:20170703354900
Title:Theoretical study on core-mode to radiation-mode coupling in chiral fiber long-period gratings
Authors:Ren, Kaili (1, 2); Ren, Liyong (1); Wang, Yingli (1); Lin, Xiao (1); Liang, Jian (1, 2); Xu, Yiping (1); Ju, Haijuan (1, 2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Ren, Kaili(renkaili@opt.ac.cn)
Source title:Optics and Laser Technology
Abbreviated source title:Opt Laser Technol
Volume:92
Issue date:July 1, 2017
Publication year:2017
Pages:150-155
Language:English
ISSN:00303992
CODEN:OLTCAS
Document type:Journal article (JA)
Publisher:Elsevier Ltd
Abstract:The chiral fiber long-period gratings (CLPGs) could be fabricated by twisting a high-birefringence (Hi-Bi) fiber. However, when it is immersed into a material whose refractive index (RI) is higher than that of the cladding, there exists a complicated coupling between the core modes and the radiation ones. In this paper, for the first time to our knowledge, we theoretically investigate the mode coupling characteristics in such a CLPG. It is found that, owing to a strong mode transfer from the co-handed core mode to continuous radiation ones under the phase-matching condition, the CLPG can be regarded as a broadband circular polarizer since only the cross-handed circularly polarized light is left when a linearly polarized light is injected. Furthermore, the influence of the RI of the surrounding medium on the bandwidth and extinction ratio of this circular polarizer is investigated in detail. As a result, a broadband all-fiber circular polarizer can be constructed. Considering its simple configuration, it might have some potential applications, such as filters, broadband polarizers, and sensors. 2017 Elsevier Ltd
Number of references:31
Main heading:Fiber optic sensors
Controlled terms:Birefringence - Circular polarization - Light polarization - Optical fibers - Optical instruments - Phase matching - Refractive index
Uncontrolled terms:Chiral fiber gratings - Circularly polarized light - High birefringence fibers - Linearly polarized light - Mode coupling - Phase matching conditions - Polarization-selective devices - Radiation mode
Classification code:711 Electromagnetic Waves - 713 Electronic Circuits - 741.1 Light/Optics - 741.1.2 Fiber Optics - 941.3 Optical Instruments
DOI:10.1016/j.optlastec.2017.01.022
Funding details: Number: 2014JM8327, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 61535015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275149, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 51207159, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by National Natural Science Foundation of China (NSFC) under Grants (No. 51207159, 61275149, 61535015), and Natural Science Foundation of Shaanxi Province (No. 2014JM8327).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<329>
Accession number:20173003982850
Title:Optofluidic in-fiber interferometer based on hollow optical fiber with two cores
Authors:Yuan, Tingting (1); Yang, Xinghua (1); Liu, Zhihai (1, 2); Yang, Jun (1); Li, Song (1); Kong, Depeng (3); Qi, Xiuxiu (1); Yu, Wenting (1); Long, Qunlong (1); Yuan, Libo (1)
Author affiliation:(1) Key Laboratory of In-Fiber Integrated Optics, Ministry of Education, College of Science, Harbin Engineering University, Harbin; 150001, China; (2) National Demonstration Center for Experimental Physics Education, Harbin Engineering University, Harbin; 150001, China; (3) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanic, Chinese Academy of Sciences, Xi’an; 710119, China
Corresponding author:Yang, Xinghua(yangxh@hrbeu.edu.cn)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:15
Issue date:July 24, 2017
Publication year:2017
Pages:18205-18215
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We demonstrate a novel integrated optical fiber interferometer for in-fiber optofluidic detection. It is composed of a specially designed hollow optical fiber with a micro-channel and two cores. One core on the inner surface of the micro-channel is served as sensing arm and the other core in the annular cladding is served as reference arm. Fusion-and-tapering method is employed to couple light from a single mode fiber to the hollow optical fiber in this device. Sampling is realized by side opening a microhole on the surface of the hollow optical fiber. Under differential pressure between the end of the hollow fiber and the microhole, the liquids can form steady microflows in the micro-channel. Simultaneously, the interference spectrum of the interferometer device shifts with the variation of the concentration of the microfluid in the channel. The optofluidic in-fiber interferometer has a sensitivity of refractive index around 2508 nm/RIU for NaCl. For medicine concentration detection, its sensitivity is 0.076 nm/mmolL？1for ascorbic acid. Significantly, this work presents a compact microfluidic in-fiber interferometer with a micro-channel which can be integrated with chip devices without spatial optical coupling and without complex manufacturing procedure of the waveguide on the chips. 2017 Optical Society of America.
Number of references:36
Main heading:Optical fiber coupling
Controlled terms:Ascorbic acid - Emission spectroscopy - Fiber optic components - Interferometers - Optical fibers - Refractive index - Single mode fibers - Sodium chloride
Uncontrolled terms:Complex manufacturing - Concentration detections - Differential pressures - Hollow optical fibers - Inner surfaces - Interference spectrum - Optical couplings - Optical fiber interferometers
Classification code:741.1 Light/Optics - 741.1.2 Fiber Optics - 804.1 Organic Compounds - 941.3 Optical Instruments
DOI:10.1364/OE.25.018205
Funding details: Number: 61290314, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61405043, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61535004, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: U1231201, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61307005, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11574061, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61227013, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: GK2110260186, Acronym: -, Sponsor: -;Number: 2014M551217, Acronym: -, Sponsor: China Postdoctoral Science Foundation;Number: F201405, Acronym: -, Sponsor: Natural Science Foundation of Heilongjiang Province;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC, 61405043, 11574061, 61290314, 61535004, 61307005, 61227013, U1231201); China Postdoctoral Science Foundation (2014M551217); the Natural Science Foundation of Heilongjiang Province (F201405) and the Fundamental Research Funds for the Central Universities (GK2110260186).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<330>
Accession number:20172803942203
Title:Nonnegative Discriminant Matrix Factorization
Authors:Lu, Yuwu (1); Lai, Zhihui (2); Xu, Yong (3); Li, Xuelong (4); Zhang, David (5); Yuan, Chun (1)
Author affiliation:(1) Tsinghua-Chinese University of Hong Kong, Joint Research Center for Media Sciences Technologies and Systems, Graduate School at Shenzhen, Tsinghua University, Shenzhen; 518055, China; (2) College of Computer Science and Software Engineering, Shenzhen University, Shenzhen; 518060, China; (3) Bio-Computing Research Center, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen; 518055, China; (4) State Key Laboratory of Transient Optics and Photonics, Center for OPTical IMagery Analysis and Learning, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (5) Biometrics Research Center, Hong Kong Polytechnic University, Hong Kong, Hong Kong
Source title:IEEE Transactions on Circuits and Systems for Video Technology
Abbreviated source title:IEEE Trans Circuits Syst Video Technol
Volume:27
Issue:7
Issue date:July 2017
Publication year:2017
Pages:1392-1405
Article number:7428887
Language:English
ISSN:10518215
CODEN:ITCTEM
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Nonnegative matrix factorization (NMF), which aims at obtaining the nonnegative low-dimensional representation of data, has received wide attention. To obtain more effective nonnegative discriminant bases from the original NMF, in this paper, a novel method called nonnegative discriminant matrix factorization (NDMF) is proposed for image classification. NDMF integrates the nonnegative constraint, orthogonality, and discriminant information in the objective function. NDMF considers the incoherent information of both factors in standard NMF and is proposed to enhance the discriminant ability of the learned base matrix. NDMF projects the low-dimensional representation of the subspace of the base matrix to regularize the NMF for discriminant subspace learning. Based on the Euclidean distance metric and the generalized Kullback-Leibler (KL) divergence, two kinds of iterative algorithms are presented to solve the optimization problem. The between- and within-class scatter matrices are divided into positive and negative parts for the update rules and the proofs of the convergence are also presented. Extensive experimental results demonstrate the effectiveness of the proposed method in comparison with the state-of-the-art discriminant NMF algorithms. 1991-2012 IEEE.
Number of references:42
Main heading:Matrix algebra
Controlled terms:Face recognition - Factorization - Iterative methods
Uncontrolled terms:Discriminant informations - Discriminative ability - Kullback-Leibler divergence - Low-dimensional representation - Matrix factorizations - Maximum margin criterions - Nonnegative matrix factorization - Optimization problems
Classification code:921 Mathematics
DOI:10.1109/TCSVT.2016.2539779
Funding details: Number: 2016M590100, Acronym: -, Sponsor: China Postdoctoral Science Foundation;Number: JCYJ20150324141711637, Acronym: -, Sponsor: Shenzhen Science and Technology Innovation Commission;Number: JCYJ20140904154630436, Acronym: -, Sponsor: Shenzhen Science and Technology Innovation Commission;Number: JCYJ20130329151843309, Acronym: -, Sponsor: Shenzhen Science and Technology Innovation Commission;Number: 61300032, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61370163, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61362031, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61203376, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61573248, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61375012, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61203376, Grant 61300032, Grant 61573248, Grant 61375012, Grant 61362031, and Grant 61370163, and in part by the Project funded by China Postdoctoral Science Foundation under Grant 2016M590100, and in part by the Shenzhen Municipal Science and Technology Innovation Council under Grant JCYJ20130329151843309, Grant JCYJ20150324141711637, and Grant JCYJ20140904154630436.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<331>
Accession number:20174304300122
Title:Particle model for optical noisy image recovery via stochastic resonance
Authors:Zhang, Yongbin (1, 3); Liu, Hongjun (1, 2); Huang, Nan (1); Wang, Zhaolu (1); Han, Jing (1, 3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China; (3) University of Chinese Academy of Sciences, Beijing; 100084, China
Corresponding author:Liu, Hongjun(liuhongjun@opt.ac.cn)
Source title:Applied Physics Express
Abbreviated source title:Appl. Phys. Express
Volume:10
Issue:10
Issue date:October 2017
Publication year:2017
Article number:102501
Language:English
ISSN:18820778
E-ISSN:18820786
Document type:Journal article (JA)
Publisher:Japan Society of Applied Physics
Abstract:We propose a particle model for investigating the optical noisy image recovery via stochastic resonance. The light propagating in nonlinear media is regarded as moving particles, which are used for analyzing the nonlinear coupling of signal and noise. Owing to nonlinearity, a signal seeds a potential to reinforce itself at the expense of noise. The applied electric field, noise intensity, and correlation length are important parameters that influence the recovery effects. The noise-hidden image with the signal-to-noise intensity ratio of 1 : 30 is successfully restored and an optimal cross-correlation gain of 6.1 is theoretically obtained. 2017 The Japan Society of Applied Physics.
Number of references:19
Main heading:Image processing
Controlled terms:Circuit resonance - Electric fields - Magnetic resonance - Signal to noise ratio - Stochastic models - Stochastic systems
Uncontrolled terms:Correlation lengths - Cross correlations - Moving particles - Noise intensities - Non-linear media - Nonlinear coupling - Recovery effects - Stochastic resonances
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 701.2 Magnetism: Basic Concepts and Phenomena - 703.1 Electric Networks - 716.1 Information Theory and Signal Processing - 922.1 Probability Theory - 961 Systems Science
DOI:10.7567/APEX.10.102501
Funding details: Number: XAB2015B27, Acronym: -, Sponsor: -;Number: 2016JQ6036, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61505247, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11604377, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275134, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: QNLM2016ORP0111, Acronym: QNLM, Sponsor: Qingdao National Laboratory for Marine Science and Technology;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Acknowledgments This work was supported by the National Natural Science Foundation of China (NSFC) (Nos. 61505247, 11604377, and 61275134), Qingdao National Laboratory for Marine Science and Technology (No. QNLM2016ORP0111), CAS "Light of West China" Program (No. XAB2015B27), and the Natural Science Basic Research plan in Shaanxi Province of China (No. 2016JQ6036).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<332>
Accession number:20172803927144
Title:Spatiotemporal evolution of continuous-wave field and dark soliton formation in a microcavity with normal dispersion
Authors:Hu, Xiaohong (1, 2, 3); Zhang, Wei (1); Liu, Yuanshan (1); Feng, Ye (1); Zhang, Wenfu (1); Wang, Leiran (1); Wang, Yishan (1, 3); Zhao, Wei (1, 3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China
Corresponding author:Wang, Yishan(yshwang@opt.ac.cn)
Source title:Chinese Physics B
Abbreviated source title:Chin. Phys.
Volume:26
Issue:7
Issue date:June 2017
Publication year:2017
Article number:074216
Language:English
ISSN:16741056
E-ISSN:20583834
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:Stable dark soliton and dark pulse formation in normally dispersive and red-detuned microcavities are investigated by numerically solving the normalized Lugiato-Lefever equation. The soliton essence is proved by fitting the calculated field intensity profile with the analytical formula of a dark soliton. Meanwhile, we find that a dark soliton can be generated either from the nonlinear evolution of an optical shock wave or narrowing of a locally broad dark pulse with smoother fronts. Explicit analytical expression is obtained to describe the oscillatory fronts of the optical shock wave. Furthermore, from the calculation results, we show that for smaller frequency detunings, e.g., a < 3, in addition to the dark soliton formation, a single dark pulse with an oscillatory dip can also arise and propagate stably in the microcavity under proper pump detuning and pump strength combination. The existence region together with various field intensity profiles and the corresponding spectra of single dark pulse are demonstrated. 2017 Chinese Physical Society and IOP Publishing Ltd.
Number of references:33
Main heading:Dispersion (waves)
Controlled terms:Microcavities - Nonlinear optics - Optical pumping - Shock waves - Solitons
Uncontrolled terms:Analytical expressions - Analytical formulas - Calculation results - Nonlinear evolutions - Normal dispersion - Pulse propagation - Spatiotemporal evolution - Temporal solitons
Classification code:714 Electronic Components and Tubes - 741.1.1 Nonlinear Optics - 931 Classical Physics; Quantum Theory; Relativity
DOI:10.1088/1674-1056/26/7/074216
Funding details: Number: 2016YFF0200702, Acronym: -, Sponsor: -;Number: 11573058, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61690222, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Project supported by the National Key Research and Development Program of China (Grant No. 2016YFF0200702), the National Natural Science Foundation of China (Grant Nos. 61690222 and 11573058), and the CAS-SAFEA International Partnership Program for Creative Research Teams.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<333>
Accession number:20173504083804
Title:Raman Spectroscopy System for Non-invasive Blood Glucose Detection
Authors:Zheng, Yi (1, 2); Zhu, Xiang-Ping (1); Nie, Rong-Zhi (1, 2, 3); Gao, Fei (1); Cui, Xiao-Xia (1); She, Jiang-Bo (1); Peng, Bo (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) School of Science, Xi'an Jiaotong University, Xi'an; 710049, China
Corresponding author:Peng, Bo(bpeng@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:8
Issue date:August 1, 2017
Publication year:2017
Article number:0812005
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:A miniature wearable Raman spectroscopy system used to achieve noninvasive detection of human blood glucose level was developed. A thallium-doped grin lens was employed as the collection lens and a specially designed wearable fiber optic probe was employed to help the stable and convenient collection of Raman spectrum. The glucose solution, 11 rats and 10 healthy human were studied as subjects. In addition, a method of quantitative analysis of Raman spectrum was proposed which using the peak area as the main reference factor while the peak intensity as the auxiliary reference factor to calculate the target concentration. A non-linearized multivariate dominant factor-based partial least squares model was built for different samples to predict glucose level. The results show that the accuracy are 98.1%, 89.3% and 84.4% for glucose solution, rats and human subjects. The system has the advantages of more compact structure, lower cost, better testing stability and convenient for human body to wear, and is feasible and repeatable to achieve the noninvasive detection of human blood glucose accurately. 2017, Science Press. All right reserved.
Number of references:21
Main heading:Glucose
Controlled terms:Blood - Least squares approximations - Nondestructive examination - Raman scattering - Raman spectroscopy - Rats - Spectrometers - Wearable technology
Uncontrolled terms:Blood glucose - Blood glucose detection - Compact structures - Fiberoptic probes - Glucose solution - Non-invasive detection - Partial least squares models - Target concentrations
Classification code:461.2 Biological Materials and Tissue Engineering - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 804.1 Organic Compounds - 921.6 Numerical Methods
Numerical data indexing:Percentage 8.44e+01%, Percentage 8.93e+01%, Percentage 9.81e+01%
DOI:10.3788/gzxb20174608.0812005
Funding details: Number: 61308086, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The National Natural Science Foundation of China (No.61308086) and the Natural Science Basic Research Plan in Shaanxi Province of China (No.2016JQ6016).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<334>
Accession number:20174604403969
Title:Noninvasive blood glucose detection using a miniature wearable Raman spectroscopy system
Authors:Zheng, Yi (1, 2); Zhu, Xiangping (1); Wang, Zhe (3); Hou, Zongyu (3); Gao, Fei (1); Nie, Rongzhi (1, 4); Cui, Xiaoxia (1); She, Jiangbo (1); Peng, Bo (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi'an; 710119, China; (2) University of Chinese Academy of Sciences (CAS), Beijing; 100049, China; (3) Department of Thermal Engineering, Tsinghua-BP Clean Energy Center, Tsinghua University, Beijing; 100084, China; (4) School of Science, Xi'an Jiaotong University, Xi'an; 710049, China
Corresponding author:Peng, Bo(bpeng@opt.ac.cn)
Source title:Chinese Optics Letters
Abbreviated source title:Chin. Opt. Lett.
Volume:15
Issue:8
Issue date:August 10, 2017
Publication year:2017
Article number:083001
Language:English
ISSN:16717694
Document type:Journal article (JA)
Publisher:Science Press
Abstract:In this Letter, a miniature wearable Raman spectroscopy system is developed. A wearable fiber-optic probe is employed to help the stable and convenient collection of Raman spectra. A nonlinear partial least squares model based on a multivariate dominant factor is employed to predict the glucose level. The mean coefficients of determination are 0.99, 0.893, and 0.844 for the glucose solution, laboratory rats, and human volunteers. The results demonstrate that a miniature wearable Raman spectroscopy system is feasible to achieve the noninvasive detection of human blood glucose and has important clinical application value in disease diagnosis. 2017 Chinese Optics Letters.
Number of references:23
Main heading:Wearable technology
Controlled terms:Blood - Diagnosis - Glucose - Least squares approximations - Raman spectroscopy
Uncontrolled terms:Blood glucose detection - Clinical application - Disease diagnosis - Fiberoptic probes - Glucose solution - Human volunteers - Non-invasive detection - Partial least squares models
Classification code:461.2 Biological Materials and Tissue Engineering - 461.6 Medicine and Pharmacology - 804.1 Organic Compounds - 921.6 Numerical Methods
DOI:10.3788/COL201715.083001
Funding details: Number: 61308086, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China (NSFC) under Grant No. 61308086. We would like to thank the researchers from the Fourth Military Medical University for raising the rats and for the valuable suggestions.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<335>
Accession number:20181104903368
Title:Fabrication of microtapered/helical long-period fiber gratings with a CO
Authors:Ren, Kaili (1, 2, 3); Ren, Liyong (1); Kong, Xudong (1, 3); Liang, Jian (1); Wu, Zhaoxin (3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Department of Electronics Science and Technology, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xianning-xilu 28, Xi'an; 710049, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:ICOCN 2017 - 16th International Conference on Optical Communications and Networks
Abbreviated source title:ICOCN - Int. Conf. Optical Commun. Networks
Volume:2017-January
Part number:1 of 1
Issue title:ICOCN 2017 - 16th International Conference on Optical Communications and Networks
Issue date:November 27, 2017
Publication year:2017
Pages:1-3
Language:English
ISBN-13:9781538632734
Document type:Conference article (CA)
Conference name:16th International Conference on Optical Communications and Networks, ICOCN 2017
Conference date:August 7, 2017 - August 10, 2017
Conference location:Wuzhen, China
Conference code:133380
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:A new scheme for fabricating microtapered long-period fiber gratings (LPFGs) and helical LPFGs is proposed and demonstrated successfully by periodically tapering and twisting a standard single-mode fiber, respectively, using a CO
Number of references:8
Main heading:Diffraction gratings
Controlled terms:Carbon dioxide - Carbon dioxide lasers - Fabrication - Fiber optic sensors - Fibers - Laser applications - Laser fusion - Optical communication - Single mode fibers
Uncontrolled terms:Fabrication method - Fabrication process - Fiber design and fabrication - Fiber optics sensors - Long period fiber grating - Long Period Gratings - Sensing applications - Standard single mode fibers
Classification code:717.1 Optical Communication Systems - 741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 744.2 Gas Lasers - 744.9 Laser Applications - 804.2 Inorganic Compounds
DOI:10.1109/ICOCN.2017.8121554
Funding details: Number: 61275149, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61505246, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61535015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by National Natural Science Foundation of China (NSFC) under Grants (No. 61505246, 61275149, 61535015).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<336>
Accession number:20180404671016
Title:A modified topological derivative based background suppression for infrared dim small target detection
Authors:Cheng, Wenxiong (1); Qin, Hanlin (1); Wang, Wanting (1); Wang, Chunmei (1); Leng, Hanbing (2); Zhou, Huixin (1)
Author affiliation:(1) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710071, China; (2) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China
Corresponding author:Qin, Hanlin(hlqin@mail.xidian.edu.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:1046256
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:In the processing of infrared small target image which has low signal-To-noise ratio and complex background, the target detection and recognition are very hard. So, how to suppress infrared complex background in low signal-To-clutter addition becomes the key problem in the detection of infrared small target image. The topological derivative can quantify the sensitivity of a problem when the domain under consideration is perturbed by changing its topology. Considering the idea of topology optimization, a modified topological derivative based background suppression method for infrared dim small target detection was proposed. An appropriate functional and variational problem is related to the cost function. Thus, the corresponding topological derivative can be used as an indicator function leads to the processed image through a minimization process. Firstly, introduce perturbations to each pixel of the infrared image. Secondly, calculate the corresponding topological derivative. These pixels also have the least cost function. Finally, using the modified optimal diffusion coefficient to diffuse the pixels where the topological derivative is negative to make its background smooth and achieve the purpose of removing the background clutter while enhancing the small target. Compared with other several experiment results of existing background suppressing methods in indexes, the method the paper proposed has innovative ideas and gets well effects of background suppressing and are practical methods. All of above have the important research value for the related work in future. 2017 SPIE.
Number of references:16
Main heading:Topology
Controlled terms:Clutter (information theory) - Cost functions - Infrared imaging - Object recognition - Pixels - Signal to noise ratio - Target tracking
Uncontrolled terms:Background suppress - Background suppressing - Background suppression - Infrared dim small targets - Infrared small targets - Low signal-to-noise ratio - Target detection and recognition - Topological derivatives
Classification code:716.1 Information Theory and Signal Processing - 746 Imaging Techniques - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 921.5 Optimization Techniques
DOI:10.1117/12.2285726
Funding details: Number: 2017JM6079, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Provincial Department of Education;Number: 614102033306, Acronym: -, Sponsor: Ministry of Education;Number: LSIT201503, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61401343, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is co-supported by the National Natural Science Foundation of China (61401343), the Joint Funds for the Ministry of Education (614102033306), the National Natural Science Foundation of Shaanxi Provincial (2017JM6079), the Open Research Fund of Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences (LSIT201503).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<337>
Accession number:20180804822645
Title:Theoretical research of influence of laser intensity fluctuation on imaging quality degradation of coherent field
Authors:Cheng, Zhi-Yuan (1); Ma, Cai-Wen (1); Ma, Qing (2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechnics of Chinese Acdemy of Science, Xi'an; 710119, China; (2) Xi'an University of Architecture and Technology, Xi'an; 710055, China
Corresponding author:Cheng, Zhi-Yuan(czy@opt.ac.cn)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:24
Issue date:December 20, 2017
Publication year:2017
Article number:244202
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:The laser coherent field imaging system emits multiple beams of laser from earth to space, and laser scans remote space target by passing through turbulence atmosphere. Multi-beam laser intensity fluctuation caused by atmosphere turbulence is a key factor affecting high-resolution imaging quality of the coherent field imaging system. Aiming at solving the problem of imaging quality degradation caused by laser intensity fluctuation error, we discuss the mechanism of laser intensity fluctuation error influencing the imaging quality of laser coherent field high-resolution imaging system. The theoretical model about the relationship between laser intensity fluctuation factor and imaging quality is proposed for the first time. Firstly, the laser echo field signal error induced by laser intensity amplitude fluctuation factor is deduced according to laser transmitting atmosphere theory. Then adopting multi-beam phase closure arithmetic, the phase closure coefficient error is derived from the laser intensity fluctuation factor and laser echo field signal. The mechanism of disturbed laser echo signal influencing phase closure coefficient is investigated in detail. In the following, based on reconstructed spectrum theory, the model of imaging frequency spectrum error propagation, caused by laser intensity fluctuation factor, is proposed. Finally, we reveal the mechanism of laser intensity amplitude fluctuation factor influencing reconstructed imaging frequency spectrum and imaging quality. The correctness and validity of the theoretical model are verified in simulation experiment. In the three-beam laser coherent field imaging simulation experiment, the imaging quality is evaluated by the Strehl ratio of the image. Experimental result shows that the Strehl ratio is only related to the light intensity fluctuation of one of the three beams of laser, and the greater the fluctuation of laser intensity, the more serious the degradation of imaging quality is. The research draws the conclusion that the reconstructed imaging frequency spectrum and image quality are mainly affected by the laser intensity fluctuation of the second beam in the three-beam phase closure algorithm, regardless of other two laser intensity fluctuations. Thus, in order to restrain the degradation of imaging quality caused by laser intensity fluctuation, we only need to keep stable the laser intensity of the second beam but not all of the laser beams. In this paper, we reveal the mechanism of laser intensity fluctuation affecting high-resolution imaging quality in the three-beam laser coherent field imaging system. The research provides a theoretical basis for analyzing imaging quality degradation from the laser intensity fluctuation caused by atmospheric turbulence, and reasonably assigning the light intensity stability of multi-beam laser emitter to improve the imaging quality in laser coherent field imaging system. 2017 Chinese Physical Society.
Number of references:21
Main heading:Laser theory
Controlled terms:Atmospheric turbulence - Earth atmosphere - Errors - Image quality - Image resolution - Imaging systems - Laser beams - Light polarization - Spectroscopy
Uncontrolled terms:Amplitude fluctuations - Atmosphere turbulence - Coherent fields - Frequency spectra - High-resolution imaging - Imaging quality - Laser intensity fluctuations - Light intensity fluctuations
Classification code:443.1 Atmospheric Properties - 741.1 Light/Optics - 744.1 Lasers, General - 744.8 Laser Beam Interactions - 746 Imaging Techniques
DOI:10.7498/aps.66.244202
Funding details: Number: 2017JM6035, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;
Funding text:Project supported by the Natural Science Foundation of Shaanxi Province, China (Grant No. 2017JM6035).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<338>
Accession number:20171403539961
Title:Self-assembled high-performance graphene oxide fibers using ionic liquid as coagulating agent
Authors:Zhang, Dong (1); Peng, Li (2); Shi, Naien (1); Yu, Youhai (3); Min, Yonggang (1); Epstein, Arthur J. (4, 5)
Author affiliation:(1) Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing; Jiangsu; 210046, China; (2) State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 5 Xinmofan Road, Nanjing; 210009, China; (3) Xi’an Institute of Optics and Precision Mechanics of Chinese Academy of Science, Xi’an; 710119, China; (4) Department of Physics, The Ohio State University, 100 West 18th Avenue, Columbus; OH; 43210, United States; (5) Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus; OH; 43210, United States
Corresponding author:Min, Yonggang(yong686@126.com)
Source title:Journal of Materials Science
Abbreviated source title:J Mater Sci
Volume:52
Issue:13
Issue date:July 1, 2017
Publication year:2017
Pages:7698-7708
Language:English
ISSN:00222461
E-ISSN:15734803
CODEN:JMTSAS
Document type:Journal article (JA)
Publisher:Springer New York LLC
Abstract:An efficient strategy for fabricating high-performance GO fibers (GFs) by using ionic liquids as coagulating agent via wet-spinning technique was reported for the first time. The interactions between the functional groups of the GO sheets and the ionic liquids cations could be tuned by choosing ionic liquids cations with designed structure, yielding GFs with varied mechanical properties. No organic solvent or postdrawing processes involved makes this process green and facile. 2017, Springer Science+Business Media New York.
Number of references:37
Main heading:Ionic liquids
Controlled terms:Graphene - Positive ions - Spinning (fibers)
Uncontrolled terms:Efficient strategy - Wet-spinning technique
Classification code:804 Chemical Products Generally - 819.3 Fiber Chemistry and Processing
DOI:10.1007/s10853-017-1050-5
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<339>
Accession number:20173604118932
Title:Identification of isotonic forearm motions using muscle synergies for brain injured patients
Authors:Geng, Yanjuan (1); Ouyang, Yatao (2); Samuel, Oluwarotimi Williams (1); Yu, Wenlong (1); Wei, Yue (1); Bi, Sheng (3); Lu, Xiaoqiang (4); Li, Guanglin (1)
Author affiliation:(1) CAS Key Laboratory of Human-Machine Intelligence-Synergy Systems, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Guangdong; 518055, China; (2) Guangdong Provincial Industrial Injury Rehabilitation Center, Guangzhou; 510440, China; (3) National Research Center for Rehabilitation Technical Aids, Beijing; 100721, China; (4) Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian; 710119, China
Source title:International IEEE/EMBS Conference on Neural Engineering, NER
Abbreviated source title:Int. IEEE/EMBS Conf. Neural Eng., NER
Volume:0
Part number:1 of 1
Issue title:8th International IEEE EMBS Conference on Neural Engineering, NER 2017
Issue date:August 10, 2017
Publication year:2017
Pages:633-636
Article number:8008431
Language:English
ISSN:19483546
E-ISSN:19483554
ISBN-13:9781538619162
Document type:Conference article (CA)
Conference name:8th International IEEE EMBS Conference on Neural Engineering, NER 2017
Conference date:May 25, 2017 - May 28, 2017
Conference location:Shanghai, China
Conference code:129986
Sponsor:EMB; IEEE
Publisher:IEEE Computer Society
Abstract:To effectively restore the fine motor functions of the forearm and hand of stroke survivors and patients with traumatic brain injury (TBI), recent studies have proposed an active rehabilitation concept based on the pattern recognition of electromyography (EMG) signals to decode the motor intent of the patients. The results from these studies suggested that pattern recognition of EMG signals associated with the limb motions could potentially aid the development of active rehabilitation robots. To obtain richer set of neural information from multiple-channel EMG recordings, this study proposed a muscle synergies based method for motor intent identification from high-density CP EMG signals recorded from eight TBI subjects. For baseline comparison, the linear discriminant analysis (LDA) based pattern recognition approach was also examined. The outcomes show that the proposed muscle synergy based method outperformed the commonly used LDA with more centralized distribution of motion classification accuracy across all the TBI subjects. And such an increment in accuracy suggests the feasibility CP of using muscle synergies for neural control in active rehabilitation for TBI patients. 2017 IEEE.
Number of references:18
Main heading:Patient rehabilitation
Controlled terms:Biomedical signal processing - Brain - Discriminant analysis - Electromyography - Mergers and acquisitions - Muscle - Pattern recognition
Uncontrolled terms:Active rehabilitations - Brain-injured patients - Centralized distribution - Linear discriminant analyses (LDA) - Motion classification - Multiple channels - Neural information - Traumatic Brain Injuries
Classification code:461 Bioengineering and Biology - 716.1 Information Theory and Signal Processing - 922 Statistical Methods
DOI:10.1109/NER.2017.8008431
Funding details: Number: #KQCX2015033117354152, Acronym: -, Sponsor: Shenzhen Graduate School, Peking University;Number: 20150401145529005, Acronym: -, Sponsor: -;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61403367, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 91420301, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:*Research supported in part by the National Natural Science Foundation of China under Grants (#61403367, #91420301), the Shenzhen High-level Oversea Talent Program (Shenzhen Peacock Plan) Grant (#KQCX2015033117354152), and the Shenzhen Basic Research Grant (#JCYJ20150401145529005) Y. Geng, W. Yu, Y. Wei, O. Samuel, and G. Li are with CAS Key Laboratory of Human-Machine Intelligence-Synergy Systems, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen, Guangdong 518055 China (Phone: 86-755-86392219; e-mail: gl.li@)siat.ac.cn).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<340>
Accession number:20174204282385
Title:Eight-wave mixing parametrical amplification
Authors:Liu, Yang (1, 3); Li, Kangkang (2); Liu, Yize (2); Yang, Gaoguo (2); Wang, Kun (2); Zhang, Yanpeng (2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China; (2) Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Shaanxi Key Lab of Information Photonic Technique, Xi’an Jiaotong University, Xi’an; 710049, China; (3) University of Chinese Academy of Sciences (UCAS), Beijing; 100049, China
Corresponding author:Zhang, Yanpeng(ypzhang@mail.xjtu.edu.cn)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:21
Issue date:October 16, 2017
Publication year:2017
Pages:25212-25221
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We investigate parametrically amplified eight-wave mixing (PA-EWM). The double dressed PA-four-wave mixing (PA-FWM) is the superposition of one PA-FWM process, two different PA-six-wave mixing (PA-SWM) processes (PA-SWM1 and PA-SWM2 with external dressing field 776nm and 795nm, respectively) and one PA-EWM process. When the phases among FWM, SWM1, SWM2 and EWM change from 0 to π, the double dressed PA-FWM could gradually satisfy the pure enhancement (all 0), partial enhancement and suppression (mixture of 0 and π), or pure suppression condition (all π). The outcomes of the investigation can potentially contribute to the development of multi-channel quantum information processing and high dimensional stereoscopic imaging. 2017 Optical Society of America.
Number of references:24
Main heading:Quantum optics
Controlled terms:Four wave mixing - Stereo image processing
Uncontrolled terms:High-dimensional - Multi channel - Quantum-information processing - Six-wave mixing - Stereoscopic imaging - Wave mixing
Classification code:723.2 Data Processing and Image Processing - 741.1 Light/Optics
Numerical data indexing:Size 7.76e-07m, Size 7.95e-07m
DOI:10.1364/OE.25.025212
Funding details: Number: 11474228, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61308015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61605154, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Key Research and Development Program of China (2017YFA0303700); National Natural Science Foundation of China (NSFC) (11474228, 61605154, 61308015); Key Scientific and Technological Innovation Team of Shaanxi Province (2014KCT-10).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<341>
Accession number:20163702792642
Title:Femtosecond passively Er-doped mode-locked fiber laser with WS
Authors:Li, Lu (1, 2); Su, Yulong (1); Wang, Yonggang (1); Wang, Xi (1); Wang, Yishan (1, 3); Li, Xiaohui (3); Mao, Dong (4); Si, Jinhai (2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Shaanxi Key Laboratory of Information Photonic Technique, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; (3) School of Physics and information Technology, Shaanxi Normal University, Xi'an; 710119, China; (4) Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education, Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an; 710072, China
Source title:IEEE Journal of Selected Topics in Quantum Electronics
Abbreviated source title:IEEE J Sel Top Quantum Electron
Volume:23
Issue:1
Issue date:2017
Publication year:2017
Article number:7426731
Language:English
ISSN:07921233
E-ISSN:21910359
CODEN:IJSQEN
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:This study presents the femtosecond fundamental and harmonic mode-locked Er-doped fiber laser withWS
Number of references:52
Main heading:Mode-locked fiber lasers
Controlled terms:Erbium compounds - Fiber lasers - Fibers - Harmonic analysis - Heat resistance - Locks (fasteners) - Nonlinear optics - Optical materials - Pulse repetition rate - Saturable absorbers - Signal to noise ratio - Tungsten compounds
Uncontrolled terms:Antioxidant capacity - Damage threshold - Er-doped fiber laser - Harmonic mode locking - Modulation depth - Non-linear optical material - Non-saturable loss - Ultrafast nonlinear optics
Classification code:716.1 Information Theory and Signal Processing - 741.1.1 Nonlinear Optics - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 744.4 Solid State Lasers - 921.6 Numerical Methods
Numerical data indexing:Decibel 6.60e+01dB, Frequency 1.02e+07Hz, Frequency 4.61e+08Hz, Percentage 1.10e+01%, Percentage 1.80e+01%, Power 3.50e-01W, Surface_Power_Density 5.00e+10W/m2, Time 6.60e-13s, Time 7.10e-13s
DOI:10.1109/JSTQE.2016.2538640
Funding details: Number: 61378024, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61378024, and the Open Research Fund of the State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Science under Grant SKLST201401.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<342>
Accession number:20174804480375
Title:Axial plane optical microscopy for particle manipulation with Weber accelerating beams
Authors:An, Sha (1, 2); Peng, Tong (1, 2); Han, Guoxia (1); Huang, Zhangxiang (1); Wang, Meirong (3); Yao, Baoli (1); Zhang, Peng (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics, Precision Mechanics of Chinese Academy Sciences, Xi'an; 710119, China; (2) University of Chinese Academy Sciences, Beijing; 100049, China; (3) The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an; 710129, China
Corresponding author:Peng, Tong(pengzhang@opt.ac.cn)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F66-FiO 2017
Part number:1 of 1
Issue title:Frontiers in Optics, FiO 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:Frontiers in Optics, FiO 2017
Conference date:September 18, 2017 - September 21, 2017
Conference location:Washington, DC, United states
Conference code:137738
Publisher:OSA - The Optical Society
Abstract:We directly observe the optical particle manipulation with Weber accelerating beams by the axial plane optical microscopy (APOM). Optically trapped particles moving along parabolic trajectories are successfully monitored by the APOM. OSA 2017.
Number of references:8
Page count:2
Main heading:Optical microscopy
Controlled terms:Optical data storage
Uncontrolled terms:Axial planes - Optical particle manipulations - Parabolic trajectories - Particle manipulation - Trapped particle
Classification code:722.1 Data Storage, Equipment and Techniques - 741.1 Light/Optics
DOI:10.1364/FIO.2017.JTu3A.4
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<343>
Accession number:20181104902376
Title:Visual saliency detection based on region contrast and guided filter
Authors:Liu, Liqiang (1, 2); Cao, Jianzhong (1); Niu, Yuefeng (1, 2); Guo, Huinan (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China; (2) University of Chinese, Academy of Sciences, Beijing, China
Source title:2017 2nd IEEE International Conference on Computational Intelligence and Applications, ICCIA 2017
Abbreviated source title:IEEE Int. Conf. Comput. Intell. Appl., ICCIA
Volume:2017-January
Part number:1 of 1
Issue title:2017 2nd IEEE International Conference on Computational Intelligence and Applications, ICCIA 2017
Issue date:December 4, 2017
Publication year:2017
Pages:327-330
Language:English
ISBN-13:9781538620304
Document type:Conference article (CA)
Conference name:2nd IEEE International Conference on Computational Intelligence and Applications, ICCIA 2017
Conference date:September 8, 2017 - September 11, 2017
Conference location:Beijing, China
Conference code:133504
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:The main challenge of previous saliency detection method is the low quality of obtained saliency map which missed the edge and texture information easily. So it cannot reflect the integrated image salient information. Considering this problem, we propose a novel saliency measure method which combine region contrast and fast guided filter. This method utilizes region contrast method to obtain initial saliency maps. Then we optimize the saliency maps by using the fast guided filter. Extensive experimental results on natural image show the effectiveness of the proposed method. One aspect, the obtained final saliency maps have obvious advantages in dealing with the texture and weakening the inconsequential region. Another aspect, evaluation on the two databases validates that our method achieves superior results and outperforms compared previous approach in both precision and recall. 2017 IEEE.
Number of references:17
Main heading:Image segmentation
Controlled terms:Artificial intelligence - Bandpass filters
Uncontrolled terms:Edge and textures - Guided filters - Integrated images - Precision and recall - Region contrast - Saliency - Saliency detection - Visual saliency detections
Classification code:703.2 Electric Filters - 723.4 Artificial Intelligence
DOI:10.1109/CIAPP.2017.8167232
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<344>
Accession number:20180704803904
Title:Image2song: Song Retrieval via Bridging Image Content and Lyric Words
Authors:Li, Xuelong (1); Hu, Di (2); Lu, Xiaoqiang (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) School of Computer Science, Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an; 710072, China
Source title:Proceedings of the IEEE International Conference on Computer Vision
Abbreviated source title:Proc IEEE Int Conf Comput Vision
Volume:2017-October
Part number:1 of 1
Issue title:Proceedings - 2017 IEEE International Conference on Computer Vision, ICCV 2017
Issue date:December 22, 2017
Publication year:2017
Pages:5650-5659
Article number:8237864
Language:English
ISSN:15505499
CODEN:PICVES
ISBN-13:9781538610329
Document type:Conference article (CA)
Conference name:16th IEEE International Conference on Computer Vision, ICCV 2017
Conference date:October 22, 2017 - October 29, 2017
Conference location:Venice, Italy
Conference code:133704
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Image is usually taken for expressing some kinds of emotions or purposes, such as love, celebrating Christmas. There is another better way that combines the image and relevant song to amplify the expression, which has drawn much attention in the social network recently. Hence, the automatic selection of songs should be expected. In this paper, we propose to retrieve semantic relevant songs just by an image query, which is named as the image2song problem. Motivated by the requirements of establishing correlation in semantic/content, we build a semantic-based song retrieval framework, which learns the correlation between image content and lyric words. This model uses a convolutional neural network to generate rich tags from image regions, a recurrent neural network to model lyric, and then establishes correlation via a multi-layer perceptron. To reduce the content gap between image and lyric, we propose to make the lyric modeling focus on the main image content via a tag attention. We collect a dataset from the social-sharing multimodal data to study the proposed problem, which consists of (image, music clip, lyric) triplets. We demonstrate that our proposed model shows noticeable results in the image2song retrieval task and provides suitable songs. Besides, the song2image task is also performed. 2017 IEEE.
Number of references:49
Main heading:Computer vision
Controlled terms:Recurrent neural networks - Semantics
Uncontrolled terms:Automatic selection - Convolutional neural network - Image content - Image regions - Multi layer perceptron - Multi-modal data - Retrieval frameworks - Social sharing
Classification code:723.5 Computer Applications
DOI:10.1109/ICCV.2017.602
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<345>
Accession number:20170503306534
Title:Photon-limited depth and reflectivity imaging with sparsity regularization
Authors:Yan, Kang (1, 2); Lifei, Li (1); Xuejie, Duan (3); Tongyi, Zhang (1); Dongjian, Li (1); Wei, Zhao (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710071, China
Corresponding author:Tongyi, Zhang(tyzhang@opt.ac.cn)
Source title:Optics Communications
Abbreviated source title:Opt Commun
Volume:392
Issue date:June 1, 2017
Publication year:2017
Pages:25-30
Language:English
ISSN:00304018
CODEN:OPCOB8
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:We demonstrate a depth and reflectivity imaging system at low light level based on sparsity regularization method. Depth and reflectivity imaging from the time-correlated single photon counting (TCSPC) measurement in limit of few photon counts are reconstructed through exploiting transform-domain sparsity. Two different sparsity-based penalty function: total variation (TV) penalty and l
Number of references:32
Main heading:Photons
Controlled terms:Discrete cosine transforms - Image coding - Image denoising - Imaging systems - Particle beams - Reflection - Space surveillance
Uncontrolled terms:3D imaging - Discrete Cosine Transform(DCT) - Image denoising methods - Photon-limited imaging - Regularization methods - Sparsity regularizations - Time-correlated single-photon counting - Total variation
Classification code:656.2 Space Research - 716.1 Information Theory and Signal Processing - 746 Imaging Techniques - 921.3 Mathematical Transformations - 931.3 Atomic and Molecular Physics - 932.1 High Energy Physics
DOI:10.1016/j.optcom.2017.01.032
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<346>
Accession number:20181004855777
Title:Study of Ultraviolet Photon Counting Detector with Delay-Line Anode
Authors:Lei, Fan-Pu (1, 2, 3); Bai, Yong-Lin (3); Zhu, Bing-Li (3); Bai, Xiao-Hong (3); Qin, Jun-Jun (3); Xu, Peng (3); Hou, Xun (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Key Laboratory of Ultrafast Diagnostic Technique, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:37
Issue:10
Issue date:October 1, 2017
Publication year:2017
Pages:2989-2994
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press
Abstract:Delay-line anode detector based on MCP electron multiplier detect the incident photon's location by the arrival time difference of the MCP output charge pulse at each end of delay line. Due to their high spatial resolution and high counting rate, photon counting detectors with delay line anode have been widely used in ultraviolet spectral imaging systems. Operational principle of ultraviolet photon detector based on delay line anode is analyzed, and a novel two-dimensional serpentine delay line anode is designed. Electron cloud output from MCP is collected only by the anode surface. The upper serpentine delay line receives the MCP output charge directly, while the lower serpentine delay line receives the charge using a series of pads and vias. This anode is made of printed circuit board instead of laser etching, which greatly simplifies the fabrication process. Photon counting detector with this type of anode achieves a 92 μm FWHM resolution. And the image linearity is better than 100 μm. The results of theory analysis and experiments demonstrated the feasibility of ultraviolet photon imaging system. It provides a theoretical basis and experiments guidance for the development of ultraviolet imaging spectrometers. 2017, Peking University Press. All right reserved.
Number of references:12
Main heading:Anodes
Controlled terms:Electron multipliers - Image resolution - Imaging systems - Photons - Printed circuit boards - Serpentine - Silicate minerals - Spectroscopy
Uncontrolled terms:Counting rates - High spatial resolution - Operational principles - Photon counting detectors - Spatial resolution - Spectral imaging - Spectral imaging system - Ultraviolet Imaging spectrometers
Classification code:482.2 Minerals - 714.1 Electron Tubes - 746 Imaging Techniques - 931.3 Atomic and Molecular Physics
Numerical data indexing:Size 1.00e-04m, Size 9.20e-05m
DOI:10.3964/j.issn.1000-0593(2017)10-2989-06
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<347>
Accession number:20174904496978
Title:Colorectal cancer and colitis diagnosis using fourier transform infrared spectroscopy and an improved K-nearest-neighbour classifier (Open Access)
Authors:Li, Qingbo (1); Hao, Can (1); Kang, Xue (1); Zhang, Jialin (1); Sun, Xuejun (2); Wang, Wenbo (3); Zeng, Haishan (3)
Author affiliation:(1) School of Instrumentation Science and Opto-Electronics Engineering, Precision Opto-Mechatronics Technology Key Laboratory of Education Ministry, Beihang University, Xueyuan Road No 37, Haidian District, Beijing; 100191, China; (2) Department of General Surgery, First Hospital of Xi’an Jiaotong University, Xi’an; 710061, China; (3) Cancer Imaging Unit–Integrative Oncology Department, BC Cancer Agency Research Centre, Vancouver; BC; V5Z 1L3, Canada
Corresponding author:Li, Qingbo(qbleebuaa@buaa.edu.cn)
Source title:Sensors (Switzerland)
Abbreviated source title:Sensors
Volume:17
Issue:12
Issue date:December 2017
Publication year:2017
Article number:2739
Language:English
ISSN:14248220
Document type:Journal article (JA)
Publisher:MDPI AG, Postfach, Basel, CH-4005, Switzerland
Abstract:Combining Fourier transform infrared spectroscopy (FTIR) with endoscopy, it is expected that noninvasive, rapid detection of colorectal cancer can be performed in vivo in the future. In this study, Fourier transform infrared spectra were collected from 88 endoscopic biopsy colorectal tissue samples (41 colitis and 47 cancers). A new method, viz., entropy weight local-hyperplane k-nearest-neighbor (EWHK), which is an improved version of K-local hyperplane distance nearest-neighbor (HKNN), is proposed for tissue classification. In order to avoid limiting high dimensions and small values of the nearest neighbor, the new EWHK method calculates feature weights based on information entropy. The average results of the random classification showed that the EWHK classifier for differentiating cancer from colitis samples produced a sensitivity of 81.38% and a specificity of 92.69%. 2017 by the authors. Licensee MDPI, Basel, Switzerland.
Number of references:29
Main heading:Fourier transform infrared spectroscopy
Controlled terms:Diseases - Endoscopy - Geometry - Motion compensation - Nearest neighbor search - Pattern recognition - Tissue
Uncontrolled terms:Colorectal cancer - Fourier transform infrared spectra - Information entropy - K-local hyperplane - K-nearest neighbors - K-nearest neighbours - Local hyperplanes - Tissue classification
Classification code:461.2 Biological Materials and Tissue Engineering - 461.6 Medicine and Pharmacology - 801 Chemistry - 921 Mathematics - 921.5 Optimization Techniques
Numerical data indexing:Percentage 8.14e+01%, Percentage 9.27e+01%
DOI:10.3390/s17122739
Funding details: Number: -, Acronym: XJTU, Sponsor: Xi’an Jiaotong University;Number: 61575015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Acknowledgments: The authors gratefully acknowledge the Medical Division of the First Hospital of Xi’an Jiaotong University for providing the tissue specimens and Beijing No. 2 Optical Instrument Factory (Beijing, China) for excellent technical assistance. This work was financially supported by the National Natural Science Foundation of China (Grant No. 61575015).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<348>
Accession number:20180304654525
Title:Optomechanical integrated simulation of Mars medium resolution lens with large field of view
Authors:Yang, Wenqiang (1, 2); Xu, Guangzhou (1); Yang, Jianfeng (1); Sun, Yi (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No.17 xinxi Avenue, Chang'an District, Xi'an, Shaanxi; 710119, China; (2) University of Chinese, Academy of Sciences, Beijing; 100049, China
Corresponding author:Yang, Wenqiang(yangwenqiang15@mails.ucas.ac.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10463
Part number:1 of 1
Issue title:AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Issue date:2017
Publication year:2017
Article number:104631I
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614079
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133232
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:The lens of Mars detector is exposed to solar radiation and space temperature for long periods of time during orbit, so that the ambient temperature of the optical system is in a dynamic state. The optical and mechanical change caused by heat will lead to camera's visual axis drift and the wavefront distortion. The surface distortion of the optical lens includes the displacement of the rigid body and the distortion of the surface shape. This paper used the calculation method based on the integrated optomechanical analysis, to explore the impact of thermodynamic load on image quality. Through the analysis software, established a simulation model of the lens structure. The shape distribution and the surface characterization parameters of the lens in some temperature ranges were analyzed and compared. the PV/RMS value, deformation cloud of the lens surface and quality evaluation of imaging was achieved. This simulation has been successfully measured the lens surface shape and shape distribution under the load which is difficult to measure on the experimental conditions. The integrated simulation method of the optical machine can obtain the change of the optical parameters brought by the temperature load. It shows that the application of Integrated analysis has play an important role in guiding the designing the lens. 2017 SPIE.
Number of references:12
Main heading:Finite element method
Controlled terms:Computer software - Earth (planet) - Optical instrument lenses - Optical systems - Optomechanics - Orbits - Quality control - Temperature - Thermoanalysis
Uncontrolled terms:Experimental conditions - Integrated analysis - Integrated simulation method - Integrated simulations - Optical lens - Opto-mechanical analysis - Surface characterization - Zernike polynomials
Classification code:641.1 Thermodynamics - 723 Computer Software, Data Handling and Applications - 741.3 Optical Devices and Systems - 801 Chemistry - 913.3 Quality Assurance and Control - 921.6 Numerical Methods
DOI:10.1117/12.2285582
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<349>
Accession number:20180404671029
Title:An adaptive multi-Threshold image segmentation algorithm based on object-oriented classification for high-resolution remote sensing images
Authors:Kai, Yu (1, 2); Jiahang, Liu (1); Lu, Zhuanli (1, 2)
Author affiliation:(1) Laboratory of Remote Sensing and Intelligent Information System, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Jiahang, Liu
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104624B
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:The object-oriented segmentation is a critical process in the classification and recognition of high-resolution remote sensing images. Multi-Threshold segmentation methods have been widely used in multi-Target recognition and information extraction of high-resolution remote sensing images because they are simple, easy-To-implement, and has ideal segmentation effect. However, the determination of thresholds for existing multi-Threshold segmentation algorithms is still a problem, which limits to get the best effect of segmentation. To address this issue we propose a self-Adapted multithreshold segmentation method, based on region merging, toward segmenting remote sensing images. This method involves four steps: image preprocessing based on morphological filtering, improved watershed transformation to initiate primitive segments, optimal region merging, and self-Adapted multi-Threshold segmentation. The performance of the proposed algorithm is evaluated in QuickBird images and compared to the existing region merging method. The results reveal the proposed segmentation method outperforms the existing method, as indicated by its lower discrepancy measure. 2017 SPIE.
Number of references:8
Main heading:Image segmentation
Controlled terms:Adaptive optics - Data mining - Image classification - Image enhancement - Merging - Optimization - Remote sensing
Uncontrolled terms:Classification and recognition - High resolution remote sensing images - Image segmentation algorithm - Multi-threshold segmentation - Multithreshold - Object oriented - Object oriented classification - Region-merging
Classification code:723.2 Data Processing and Image Processing - 741.1 Light/Optics - 921.5 Optimization Techniques
DOI:10.1117/12.2285511
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<350>
Accession number:20171703607632
Title:An adaptive gamma method for image under non-uniform illumination
Authors:Wang, Zefeng (1); Zhang, Haifeng (1); Liao, Jiawen (1); Guo, Huinan (1); Zhang, Zhi (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi Province; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102561C
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:Gamma correction is a necessary operation for a digital image before it is sent to display. Uneven illumination images have low resolution and a lot of information is covered.in order to better removal of light effects and reproduce truly plain circumstances, this paper presents a new local adaptive gamma correction method. The experiment shows this method makes the brightness distribution more uniform and proved that the method compared with other methods that have better correction results. 2017 SPIE.
Number of references:5
Main heading:Adaptive optics
Controlled terms:Photonics
Uncontrolled terms:Brightness distribution - Gamma correction - Light effects - Local-adaptive - Low resolution - Non-uniform illumination - Self-adaptability - Uneven illuminations
Classification code:741.1 Light/Optics
DOI:10.1117/12.2256659
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<351>
Accession number:20172503793386
Title:An ultra-narrow spectral width passively mode-locked laser
Authors:Kues, Michael (1, 2); Reimer, Christian (1); Wetzel, Benjamin (1, 3); Roztocki, Piotr (1); Little, Brent E. (4); Chu, Sai T. (5); Hansson, Tobias (1); Viktorov, Evgeny A. (6); Moss, David J. (1, 7); Morandotti, Roberto (1)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) School of Mathematical and Physical Sciences, University of Sussex, Sussex House, Falmer, Brighton; BN1 9RH, United Kingdom; (4) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China; (5) City University of Hong Kong, Department of Physics and Materials Science, Tat Chee Avenue, Hong Kong; (6) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (7) Center for Micro-Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia
Corresponding author:Kues, Michael(michael.kues@emt.inrs.ca)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F42-CLEO_QELS 2017
Part number:1 of 1
Issue title:CLEO: QELS_Fundamental Science, CLEO_QELS 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:CLEO: QELS_Fundamental Science, CLEO_QELS 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:135898
Publisher:OSA - The Optical Society
Abstract:We demonstrate a passively mode-locked laser emitting 4.3 nanosecond Fourier-limited pulses with a record low spectral bandwidth of 104.9 MHz (more than 100 times narrower than previous realizations), allowing its full characterization in the radio-frequency domain. OSA 2017.
Number of references:12
Page count:2
Main heading:Mode-locked fiber lasers
Controlled terms:Fourier series - Frequency domain analysis - Lasers - Passive mode locking
Uncontrolled terms:Fourier - Passively mode-locked lasers - Radio frequency domains - Spectral bandwidth - Spectral widths - Ultra narrows
Classification code:744.1 Lasers, General - 921.3 Mathematical Transformations
Numerical data indexing:Frequency 1.05e+08Hz, Time 4.30e-09s
DOI:10.1364/CLEO_QELS.2017.FW4D.2
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<352>
Accession number:20171703607654
Title:FPGA implement method for two-dimensional integer wavelet transform in the space-based on-orbit image compression system
Authors:Jie, Wang (1, 2); Yan, Tian (1); Xiangsheng, Meng (1); Tong, Liu (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese, Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102562F
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:The image obtained from space-based vision system has increasingly high frame frequency and resolution, and field of view is also growing. Due to the dramatic increase of data scale and the restriction of channel bandwidth between satellite and ground, on-orbit data compression becomes the core of on-satellite data processing. The paper analyzes the new generation static image compression standard JPEG2000 and the key two-dimensional (2D) discrete wavelet transform (DWT) technology. Then an FPGA (Field Programmable Gate Array)implement method for 2D integer wavelet transform is designed. It adopts the spatial combinative lifting algorithm (SCLA), which realizes the simultaneous transformation on rows and columns. On this basis, the paper realizes wavelet decomposition for images with a resolution of 6576？4384 (which is divided into 1024？1024) on the FPGA platform. In particular, the test platform is built in ISE14.7 simulation software, and the device model is xc5vfx100t. The design has passed the FPGA verification. In order to verify the correctness of the algorithm, the results are compared with that obtained by running matlab code. The experimental results show that the design is correct and the resource occupancy rate is low. 2017 SPIE.
Number of references:13
Main heading:Image compression
Controlled terms:Bandwidth compression - Data handling - Digital image storage - Discrete wavelet transforms - Field programmable gate arrays (FPGA) - Integrated circuit design - MATLAB - Orbits - Photonics - Software testing - Wavelet decomposition
Uncontrolled terms:Discrete wavelets - Fpga(field programmable gate array) - Integer wavelet transforms - Satellite data processing - Simulation software - Simultaneous transformations - Spatial combinative lifting algorithms - Two Dimensional (2 D)
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 716.1 Information Theory and Signal Processing - 721.2 Logic Elements - 722.1 Data Storage, Equipment and Techniques - 723.2 Data Processing and Image Processing - 723.5 Computer Applications - 741.1 Light/Optics - 921.3 Mathematical Transformations
DOI:10.1117/12.2257416
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<353>
Accession number:20171703607512
Title:Influence of structural parameters on the laser precision tracking turntable
Authors:Erfang, Cao (1, 2); Wenji, She (2); Liang, Zhou (1, 2)
Author affiliation:(1) University of Chinese, Academy of Sciences, Beijing; 100049, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:1025605
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:The laser tracker is composed of a mechanical structure and a servo control system. And the characteristics of them all affect the error and stability of the laser tracker measurement system. In the dynamic characteristics, the mechanical structure has its natural frequency and the servo control system has servo bandwidth. If the natural frequency closes to the servo bandwidth, the noise produced by system will have an influence on the stability and measure precision of the turntable. In order to make a laser tracker take a good performance, the natural frequency has to stay away from the range of the servo bandwidth. Based on this relationship between the natural frequency and servo bandwidth, construct and simplify a 3D model, analyze the influence of material stiffness, friction and rotary inertia on the natural frequency of a self-developed laser tracker turntable. Analysis shows that the natural frequency augments with the increase of material stiffness and reduction of rotary inertia and has nothing to do with friction. And factors of the structure material influence the different orders of natural frequency differently. These conclusions show that the kind of material with low density and high stiffness is more fitted to the turntable and provide references for optimization design of precision laser tracking turntable. 2017 SPIE.
Number of references:11
Main heading:Natural frequencies
Controlled terms:Bandwidth - Control systems - Friction - Photonics - Pneumatic control equipment - Stiffness - System stability - Tribology
Uncontrolled terms:Dynamic characteristics - Laser tracker measurements - Material stiffness - Mechanical structures - Precision tracking - Rotary inertias - Servo control systems - Structural parameter
Classification code:632.4 Pneumatic Equipment and Machinery - 716.1 Information Theory and Signal Processing - 731.1 Control Systems - 741.1 Light/Optics - 931 Classical Physics; Quantum Theory; Relativity - 951 Materials Science - 961 Systems Science
DOI:10.1117/12.2268731
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<354>
Accession number:20172303750126
Title:Simple and fast spectral domain algorithm for quantitative phase imaging of living cells with digital holographic microscopy
Authors:Min, Junwei (1, 2); Yao, Baoli (2); Ketelhut, Steffi (1); Kemper, Bj？rn (1)
Author affiliation:(1) Biomedical Technology Center, University of Muenster, Mendelstr. 17, Muenster; 48149, Germany; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:10070
Part number:1 of 1
Issue title:Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXIV
Issue date:2017
Publication year:2017
Article number:100700A
Language:English
ISSN:16057422
ISBN-13:9781510605817
Document type:Conference article (CA)
Conference name:Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXIV 2017
Conference date:January 30, 2017 - February 1, 2017
Conference location:San Francisco, CA, United states
Conference code:127970
Sponsor:The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:The modular combination of optical microscopes with digital holographic microscopy (DHM) has been proven to be a powerful tool for quantitative live cell imaging. The introduction of condenser and different microscope objectives (MO) simplifies the usage of the technique and makes it easier to measure different kinds of specimens with different magnifications. However, the high flexibility of illumination and imaging also causes variable phase aberrations that need to be eliminated for high resolution quantitative phase imaging. The existent phase aberrations compensation methods either require add additional elements into the reference arm or need specimen free reference areas or separate reference holograms to build up suitable digital phase masks. These inherent requirements make them unpractical for usage with highly variable illumination and imaging systems and prevent on-line monitoring of living cells. In this paper, we present a simple numerical method for phase aberration compensation based on the analysis of holograms in spatial frequency domain with capabilities for on-line quantitative phase imaging. From a single shot off-axis hologram, the whole phase aberration can be eliminated automatically without numerical fitting or pre-knowledge of the setup. The capabilities and robustness for quantitative phase imaging of living cancer cells are demonstrated. 2017 SPIE.
Number of references:15
Main heading:Aberrations
Controlled terms:Cells - Cytology - Frequency domain analysis - Holograms - Image acquisition - Microscopic examination - Numerical methods - Phase measurement - Spectrum analysis
Uncontrolled terms:Aberration compensation - Digital holographic microscopy - Frequency spectrum analysis - Live cell - Quantitative phase imaging
Classification code:461.2 Biological Materials and Tissue Engineering - 723 Computer Software, Data Handling and Applications - 743 Holography - 746 Imaging Techniques - 921.3 Mathematical Transformations - 921.6 Numerical Methods - 942.2 Electric Variables Measurements
DOI:10.1117/12.2252883
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<355>
Accession number:20180404671032
Title:A novel algorithm for maneuvering target detection under the high energy laser irradiating
Authors:Ye, Demao (1); Wang, Jing (2); Li, Peizheng (1); Yan, Shiheng (1)
Author affiliation:(1) No.713 Research Institute of China Shipbuilding Industry Corporation, No.126, Jingguang Road, Zhengzhou; 450015, China; (2) Research Department of Information Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Ye, Demao
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104624E
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:The high-energy laser weapon is famous for its unique advantage of speed-of-light response which was considered as an ideal weapon against Unmanned Aerial Vehicle(UAV). However, due to the high energy laser reflection effect, the pixel gray distribution of the frame image will be changed drastically, and therefore the miss distance signal will be interfered strongly when the high energy laser irradiating on the UAV, which seriously affects precision of object tracking in practical application. The traditional "centroid method" or "template matching method" have been difficult to meet the requirements of high precision miss distance which was less than 1pixel(RMS) under the reflected light interfering. In order to developing operational effectiveness of weapon system, G-DS(Gray weighted factor-Diamond Search method) algorithm was proposed which combined with gray weighted factor based on self-learning mechanism. It has been studied for the characteristics of UAV images by field experiment. The results show that G-DS algorithm is low-latency(less than 5ms), which can reduce time complexity compared with the traditional ME algorithm, furthermore, G-DS algorithm was robust based on local motion vector of the block, which can improve ability of target detection and recognition compared with the traditional "centroid method" or "template matching method". Hence, G-DS algorithm was beneficial to the engineering of high-energy laser weapon. 2017 SPIE.
Number of references:7
Main heading:Aircraft detection
Controlled terms:Antennas - Electronic guidance systems - High energy lasers - Light - Maneuverability - Military equipment - Motion estimation - Object detection - Object recognition - Template matching - Unmanned aerial vehicles (UAV)
Uncontrolled terms:High energy laser weapons - High precision tracking - Maneuvering targets - Operational effectiveness - Self-learning mechanism - Target detection and recognition - Template matching method - Weighted factors
Classification code:404.1 Military Engineering - 652.1 Aircraft, General - 716.2 Radar Systems and Equipment - 723 Computer Software, Data Handling and Applications - 723.2 Data Processing and Image Processing - 741.1 Light/Optics - 744.1 Lasers, General
Numerical data indexing:Time 5.00e-03s
DOI:10.1117/12.2285535
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<356>
Accession number:20173003969021
Title:Algorithm of focal spot reconstruction for laser measurement using the schlieren method
Authors:Lin, Hui (1, 2); Da, Zheng-shang (2); Cao, Shi-kang (2); Wang, Zheng-zhou (1, 2)
Author affiliation:(1) University of Chinese Academy of Sciences, Beijing; 100039, China; (2) Xi'an Institute of Optics and Precision Mechanics Chinese Academy of Science, Xi'an; 710119, China
Corresponding author:Lin, Hui(mail198047@163.com)
Source title:Optik
Abbreviated source title:Optik
Volume:145
Issue date:September 2017
Publication year:2017
Pages:61-65
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Elsevier GmbH
Abstract:The far-field distribution of lasers is an important parameter for measuring beam quality. To overcome the insufficiencies of the CCD Camera dynamic range when measuring the far-field focal spot, the schlieren method was used to measure the focal spot far-field spatial distribution. Focal spot reconstruction was achieved after gray image matching, calculating the center, and image merging of the main lobe and side lobe. In this study, we used an algorithm based on the optimal arc to obtain the center for the side lobe images by fitting the circle center to improve the accuracy of the focal spot reconstruction. The results showed that the schlieren method of measuring the focal spot reconstruction algorithm could effectively, accurately and completely obtain the far-field focal spot. 2017 Elsevier GmbH
Number of references:13
Main heading:Image reconstruction
Controlled terms:CCD cameras - Image enhancement
Uncontrolled terms:Far field - Focal spot - Main lobes - Schlieren method - Side lobes
Classification code:714.2 Semiconductor Devices and Integrated Circuits
DOI:10.1016/j.ijleo.2017.07.033
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<357>
Accession number:5190551
Title:Dimensionality Reduction by Spatial-Spectral Preservation in Selected Bands
Authors:Zheng, Xiangtao (1); Yuan, Yuan (1); Lu, Xiaoqiang (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Center for Optical Imagery Analysis and Learning (OPTIMAL), Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Lu, Xiaoqiang
Source title:IEEE Transactions on Geoscience and Remote Sensing
Abbreviated source title:IEEE Trans Geosci Remote Sens
Volume:55
Issue:9
Issue date:September 2017
Publication year:2017
Pages:5185-5197
Article number:7954794
Language:English
ISSN:01962892
CODEN:IGRSD2
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Dimensionality reduction (DR) has attracted extensive attention since it provides discriminative information of hyperspectral images (HSI) and reduces the computational burden. Though DR has gained rapid development in recent years, it is difficult to achieve higher classification accuracy while preserving the relevant original information of the spectral bands. To relieve this limitation, in this paper, a different DR framework is proposed to perform feature extraction on the selected bands. The proposed method uses determinantal point process to select the representative bands and to preserve the relevant original information of the spectral bands. The performance of classification is further improved by performing multiple Laplacian eigenmaps (LEs) on the selected bands. Different from the traditional LEs, multiple Laplacian matrices in this paper are defined by encoding spatial-spectral proximity on each band. A common low-dimensional representation is generated to capture the joint manifold structure from multiple Laplacian matrices. Experimental results on three real-world HSIs demonstrate that the proposed framework can lead to a significant advancement in HSI classification compared with the state-of-the-art methods. ？ 2017 IEEE.
Number of references:60
Controlled terms:accuracy assessment - computer simulation - discriminant analysis - eigenvalue - experimental study - image classification - multispectral image - performance assessment
Classification code:71.8.5.4 Remote sensing: numerical and image analysis
DOI:10.1109/TGRS.2017.2703598
Funding details: Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61472413, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Basic Research Program of China (Youth 973 Program) under Grant 2013CB336500, in part by the State Key Program of National Natural Science of China under Grant 60632018, in part by the State Key Program of National Natural Science of China under Grant 61232010, in part by the National Natural Science Foundation of China under Grant 61472413, in part by the Key Research Program of the Chinese Academy of Sciences under Grant KGZD-EW-T03, in part by the Open Research Fund of the Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences, under Grant LSIT201408, and in part by the Young Top-Notch Talent Program of Chinese Academy of Sciences under Grant QYZDB-SSW-JSC015.
Database:GEOBASE
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<358>
Accession number:20165303205453
Title:Optical spectroscopic characterizations of laser irradiated olivine grains (Open Access)
Authors:Yang, Yazhou (1); Zhang, Hao (1, 2); Wang, Ziwei (1); Yuan, Ye (1); Li, Shaolin (3); Hsu, Weibiao (3); Liu, Chujian (4)
Author affiliation:(1) Planetary Science Institute, School of Earth Sciences, China University of Geosciences, Wuhan; 430074, China; (2) Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, China; (4) State Key Laboratory of Geological Process and Mineral Resources, China University of Geosciences, Wuhan, China
Corresponding author:Yang, Yazhou(um_zhanghao@yahoo.com)
Source title:Astronomy and Astrophysics
Abbreviated source title:Astron. Astrophys.
Volume:597
Issue date:January 1, 2017
Publication year:2017
Article number:A50
Language:English
ISSN:00046361
E-ISSN:14320746
CODEN:AAEJAF
Document type:Journal article (JA)
Publisher:EDP Sciences
Abstract:Context. Visible and near-infrared spectra of asteroids are known to be susceptible to nanophase irons produced by space weathering processes, thus making mineral identifications difficult. Mid-infrared spectroscopy may retain more mineral features owing to its lattice vibrational nature. Aims. We investigate the structure and reflectance spectral feature changes of olivine grains before and after simulated space weathering. Methods. We irradiate olivine grains by using pulsed laser to simulate varying degrees of micrometeorite bombardments. Reflectance measurements from 0.5 to 25 μm and radiative transfer calculations were carried out in order to compare them with each other. Results. Both the experimental simulations and modeling results indicate that the mid-infrared spectral features of olivine grains can survive the intense irradiations. Although the Christansen Feature is slightly shifted to longer wavelength, major vibrational bands remain essentially unchanged, because the lattice structure is quite immune to even the strongest irradiations, as revealed by both the X-ray diffraction and Raman scattering measurements. Conclusions. Mid-infrared spectroscopy is much more immune to productions of nanophase irons and amorphous materials and thus may be used more reliably in remote detections of minerals on asteroid surfaces. ESO, 2016.
Number of references:63
Main heading:Pulsed lasers
Controlled terms:Amorphous materials - Asteroids - Infrared devices - Infrared spectroscopy - Irradiation - Near infrared spectroscopy - Olivine - Planets - Radiative transfer - Reflection - Satellites - Silicate minerals - Weathering - X ray diffraction
Uncontrolled terms:Infrared: general - Methods: laboratory - Planets and satellites: compositions - Planets and satellites: surfaces - Techniques: spectroscopic
Classification code:482.2 Minerals - 655.2 Satellites - 657.2 Extraterrestrial Physics and Stellar Phenomena - 701 Electricity and Magnetism - 744.1 Lasers, General - 933.2 Amorphous Solids
Numerical data indexing:Size 5.00e-07m to 2.50e-05m
DOI:10.1051/0004-6361/201629327
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<359>
Accession number:20181104890537
Title:Finite element model updating based on sensitivity analysis for 5-DOF manipulator
Authors:Fu, Jia (1); Luo, Haitao (1); Yu, Min (2); Liu, Guangming (1)
Author affiliation:(1) Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang; 110016, China; (2) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China
Source title:Proceedings of 2017 IEEE 3rd Information Technology and Mechatronics Engineering Conference, ITOEC 2017
Abbreviated source title:Proc. IEEE Inf. Technol. Mechatronics Eng. Conf., ITOEC
Volume:2017-January
Part number:1 of 1
Issue title:Proceedings of 2017 IEEE 3rd Information Technology and Mechatronics Engineering Conference, ITOEC 2017
Issue date:November 27, 2017
Publication year:2017
Pages:1187-1192
Language:English
ISBN-13:9781509053629
Document type:Conference article (CA)
Conference name:3rd IEEE Information Technology and Mechatronics Engineering Conference, ITOEC 2017
Conference date:October 3, 2017 - October 5, 2017
Conference location:Chongqing, China
Conference code:133411
Sponsor:Chongqing Geeks Education Technology Co., Ltd; Chongqing Global Union Academy of Science and Technology; Global Union Academy of Science and Technology; IEEE Beijing Section
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Multi-degree of freedom manipulators have become a hotspot in the field of robotics because of many advantages. In this paper, a 5-DOF manipulator was taken as the object of study. The modal analysis on it was carried out by methods of test and finite element analysis. A model updating method based on sensitivity analysis was put forward, and the final finite element model was established by iterative optimization. By means of correlation analysis and MAC modal judgment criterion, it was verified that the simulation results of the final simulation model of the manipulator have a good correlation with the experimental modal results. The finite element model determined by this method accurately reflected the actual structural dynamic characteristics of the manipulator. 2017 IEEE.
Number of references:15
Main heading:Finite element method
Controlled terms:Degrees of freedom (mechanics) - Iterative methods - Manipulators - Modal analysis - Sensitivity analysis - Structural dynamics - Ultrasonic devices
Uncontrolled terms:Correlation analysis - Dynamic characteristics - Finite-element model updating - Good correlations - Iterative Optimization - Modal test - Model updating - Multi degree-of-freedom
Classification code:408 Structural Design - 753.2 Ultrasonic Devices - 921 Mathematics - 921.6 Numerical Methods - 931.1 Mechanics
DOI:10.1109/ITOEC.2017.8122544
Funding details: Number: 20141152, Acronym: -, Sponsor: Doctoral Start-up Foundation of Liaoning Province;Number: 51505470, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:ACKNOWLEDGMENT This work was supported by the National Science Foundation of China (Grant No.51505470) and Dr. Start-up Fund in Liaoning province (No.20141152).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<360>
Accession number:20181605026794
Title:A novel 3-D calorimeter for the high energy cosmic-radiation detection (HERD) facility onboard China's future space station
Authors:Dong, Yongwei (1, 3); Xu, Ming (1); Wang, Zhigang (1); Adriani, Oscar (1, 3); Albergo, Sebastiano (6); Ambrosi, Giovanni (7); Azzarello, Philippe (8, 9, 10); Bai, Yonglin (2); Bao, Tianwei (11); Bernardini, Paolo (17); Bertucci, Bruna (14); Bi, Xiaojun (16); Bongi, Massimo (13); Bottai, Sergio (15); Cao, Weiwei (2); Chai, Junying (1, 3, 18); Chen, Zhen (2); D'Alessandro, Raffaello (13); Di Santo, Margherita (12); Duranti, Matteo (7); Fang, Kun (1); Feng, Hua (4); Formato, Valerio (7); Fusco, Piergiorgio (18); Gao, Jiarui (2); Gargano, Fabio (15); Giglietto, Nicola (18); Hu, Peng (1, 3); Li, Ran (2); Li, Yong (2); Lin, Sujie (1); Liu, Hongbang (5); Liu, Xin (1, 3); Loparco, Francesco (18); Lyu, Junguang (1); Marsella, Giovanni (17); Mazziottai, Mario Nicola (15); De Mitri, Ivan (17); Mori, Nicola (15); Papini, Paolo (15); Peng, Wenxi (1); Pohl, Martin (8); Quan, Zheng (1); Shi, Dalian (2); Sun, Xin (2); Surdo, Antonio (12); Vannuccini, Elena (15); Walter, Roland (8); Wang, Bingbing (1); Wang, Bo (2); Wang, Junjing (1, 3); Wang, Le (2); Wang, Ruijie (1); Wu, Bobing (1); Wu, Qiong (4); Wu, Xin (8); Zhang, Li (1); Zhang, Shuangnan (1)
Author affiliation:(1) Key Laboratory of Particle and Astrophysics, Chinese Academy of Sciences, Beijing; 100049, China; (2) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, Shaanxi, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China; (4) Department of Engineering Physics, Center for Astrophysics, Tsinghua University, Beijing; 100084, China; (5) Guangxi University, Naning; 530004, China; (6) Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Catania, Italy; (7) Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Perugia, Italy; (8) Nuclear and Corpuscular Physics Department, University of Geneva, Geneva, Switzerland; (9) University of Pisa, Pisa, Italy; (10) Istituto Nazionale di Fisica Nucleare, Sezione di Trento, Trento, Italy; (11) Istituto Nazionale di Fisica Nucleare, Sezione di Lecce, Lecce, Italy; (12) University of Florence, Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, Firenze, Italy; (13) University of Perugia, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Perugia, Italy; (14) Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Bari, Italy; (15) Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, Firenze, Italy; (16) ISDC, University of Geneva, Geneva, Switzerland; (17) Universita' del Salento, Istituto Nazionale di Fisica Nucleare, Sezione di Lecce, Lecce, Italy; (18) Dipartimento di Fisica, Univerisit'a del Politecnico di Bari, Istituto Nazionale di Fisica Nucleare, Bari, Italy
Source title:Proceedings of Science
Abbreviated source title:Proc. Sci.
Part number:1 of 1
Issue title:35th International Cosmic Ray Conference, ICRC 2017
Issue date:2017
Publication year:2017
Language:English
E-ISSN:18248039
Document type:Conference article (CA)
Conference name:35th International Cosmic Ray Conference, ICRC 2017
Conference date:July 10, 2017 - July 20, 2017
Conference location:Bexco, Busan, Korea, Republic of
Conference code:135186
Publisher:Sissa Medialab Srl
Abstract:The High Energy cosmic-Radiation Detection (HERD) facility is a flagship and landmark scientific experiment onboard China's Space Station, planned for operation starting around 2025 for about 10 years. The main instrument of HERD is a 3-D calorimeter (CALO) sensitive to incident gamma-rays and particles from five sides. With this design, the effective geometric factor of HERD is more than one order of magnitude larger than that of previous missions. CALO is made of about 7,500 cubes of LYSO crystals, corresponding to about 55 radiation lengths and 3 nuclear interaction lengths, respectively. The crystal signals are transferred by wavelength shifting fibers and read out by ISCMOS devices. Energy deposition in each crystal is then derived by summing up about 400 CMOS pixels and with necessary correction for light saturation. Both a low range ISCMOS and a high range one are required to meet the requirement of a large dynamic range of at least 10 million. The prototype of CALO has been tested successfully in November 2015 at CERN, which leads to an improved design of CALO. Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives 4.0 International License (CC BY-NC-ND 4.0).
Number of references:20
Main heading:Cosmic rays
Controlled terms:Calorimeters - Cosmology - Gamma rays - Space stations
Uncontrolled terms:Energy depositions - Geometric factors - Improved designs - Nuclear interaction - Radiation detection - Radiation lengths - Scientific experiments - Wavelength-shifting fibers
Classification code:656.1 Space Flight - 657 Space Physics - 657.2 Extraterrestrial Physics and Stellar Phenomena - 931.3 Atomic and Molecular Physics - 944.5 Temperature Measuring Instruments
Numerical data indexing:Age 1.00e+01yr
Funding details: Number: 2014009, Acronym: -, Sponsor: Youth Innovation Promotion Association of the Chinese Academy of Sciences;Number: QYZDY-SSW-SLH008, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 113111KYSB20160053, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 11327303, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11473028, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:?This work was supported by Youth Innovation Promotion Association CAS, No. 2014009; the National Natural Science Foundation of China, Grant No.11327303 and Grant No.11473028; Key Research Program of Frontier Sciences, CAS, Grant NO. QYZDY-SSW-SLH008; the International Partnership Program of Chinese Academy of Sciences, Grant No. 113111KYSB20160053.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<361>
Accession number:20181104903837
Title:A new lossless compression scheme for large aperture static imaging spectrometer
Authors:Yu, Lu (1, 2); Liu, Xuebin (1); Li, Hongbo (1); Yu, Tao (1); Hu, Bingliang (1)
Author affiliation:(1) Key Lab. of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an, China; (2) School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, China
Source title:2017 International Conference on Circuits, Devices and Systems, ICCDS 2017
Abbreviated source title:Int. Conf. Circuits, Devices Syst., ICCDS
Volume:2017-January
Part number:1 of 1
Issue title:2017 International Conference on Circuits, Devices and Systems, ICCDS 2017
Issue date:November 27, 2017
Publication year:2017
Pages:179-183
Language:English
ISBN-13:9781538618714
Document type:Conference article (CA)
Conference name:2017 International Conference on Circuits, Devices and Systems, ICCDS 2017
Conference date:September 5, 2017 - September 8, 2017
Conference location:Chengdu, China
Conference code:133413
Sponsor:IEEE; National Taiwan University; UESTC
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In this paper, a novel method for the lossless compression of the interferometer hyperspectral instrument Large Aperture Static Imaging Spectrometer (LASIS) data is presented. This scheme rests upon the combination of data rearrangement and band ordering of LASIS three dimensional image and the recently presented CCSDS-123 lossless multispectral & Hyperspectral image compression standard. Firstly, the LASIS data is rearranged from the photo acquisition coordinate to the optical path difference (OPD) image coordinate by the rearrange approach to remove the interference information superimposed on the image. Then the OPD band is reordered according to the interferogram characteristic to improve the correlation between adjacent bands. Finally, the reordered OPD band data is processed using the CCSDS-123 standard. Several experiments were conducted to investigate the performance of the proposed compression scheme in the end. Experimental results suggest that this proposed compression scheme gives 31% higher compression ratio than using the standard alone. 2017 IEEE.
Number of references:14
Main heading:Image compression
Controlled terms:Acoustic generators - Hyperspectral imaging - Spectrometers - Spectroscopy
Uncontrolled terms:CCSDS-123 - Hyperspectral Data - LASIS - Lossless compression - Rearrangement
Classification code:741.3 Optical Devices and Systems - 752.4 Acoustic Generators
Numerical data indexing:Percentage 3.10e+01%
DOI:10.1109/ICCDS.2017.8120474
Funding details: Number: 2017YFC1403701, Acronym: -, Sponsor: -;Number: 11327303, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by National Natural Science Foundation of China, under Grant [No.11327303]; and the National Key Research & Development Plan of China, under Grant [No.2017YFC1403701.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<362>
Accession number:20180304654853
Title:Design of control system for piezoelectric deformable mirror based on fuzzy self-adaptive PID control
Authors:Xiao, Nan (1, 2); Gao, Wei (1); Song, Zongxi (1)
Author affiliation:(1) Space Optics Laboratory, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese, Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10463
Part number:1 of 1
Issue title:AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Issue date:2017
Publication year:2017
Article number:1046315
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614079
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133232
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:With the rapid development of adaptive optics technology, it is widely used in the fields of astronomical telescope imaging, laser beam shaping, optical communication and so on. As the key component of adaptive optics systems, the deformable mirror plays a role in wavefront correction. In order to achieve the high speed and high precision of deformable mirror system tracking control, it is necessary to find out the influence of each link on the system performance to model the system and design the controller. This paper presents a method about the piezoelectric deformable mirror driving control system. 2017 SPIE.
Number of references:7
Main heading:Adaptive optics
Controlled terms:Adaptive control systems - Deformation - Earth (planet) - Laser beams - Mirrors - Optical communication - Passive networks - Piezoelectricity - Three term control systems
Uncontrolled terms:Adaptive optics systems - Adaptive optics technology - Astronomical telescopes - Deformable mirrors - Design of control system - Fuzzy self-adaptive - Fuzzy self-adaptive pid - Wavefront correction
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 703.1 Electric Networks - 717.1 Optical Communication Systems - 731.1 Control Systems - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 744.8 Laser Beam Interactions
DOI:10.1117/12.2284441
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<363>
Accession number:20180104605839
Title:Four-wave mixing photon pair generation statistics for a nonlinear microcavity with chaotic and pulsed excitation
Authors:Roztocki, Piotr (1); Kues, Michael (1, 2); Reimer, Christian (1); Little, Brent E. (3); Chu, Sai T. (4); Moss, David J. (1, 5); Morandotti, Roberto (1, 6, 7)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, China; (4) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, China; (5) Center for Microphotonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (6) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (7) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F81-EQEC 2017
Part number:1 of 1
Issue title:European Quantum Electronics Conference, EQEC 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:European Quantum Electronics Conference, EQEC 2017
Conference date:June 25, 2017 - June 29, 2017
Conference location:Munich, Germany
Conference code:138998
Publisher:OSA - The Optical Society
Number of references:2
Page count:1
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<364>
Accession number:20181104913279
Title:Highly polarized multiwavelength er-doped fibre laser using all fibre lyot filter
Authors:Zhao, Zihao (1); Li, Yue (1); Yan, Zhijun (1, 2, 3); Luo, Yiyang (1); Wang, Hushan (3); Sun, Qizhen (1, 2); Liu, Deming (1); Zhang, Lin (2)
Author affiliation:(1) School of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, Hubei; 430074, China; (2) Aston Institute of Photonic Technologies, Aston University, Birmingham; B4 7ET, United Kingdom; (3) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:ICOCN 2017 - 16th International Conference on Optical Communications and Networks
Abbreviated source title:ICOCN - Int. Conf. Optical Commun. Networks
Volume:2017-January
Part number:1 of 1
Issue title:ICOCN 2017 - 16th International Conference on Optical Communications and Networks
Issue date:November 27, 2017
Publication year:2017
Pages:1-3
Language:English
ISBN-13:9781538632734
Document type:Conference article (CA)
Conference name:16th International Conference on Optical Communications and Networks, ICOCN 2017
Conference date:August 7, 2017 - August 10, 2017
Conference location:Wuzhen, China
Conference code:133380
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:A multiwavelength Er-doped fibre ring laser system using all fibre Lyot filter and highly nonlinear fibre was experimentally demonstrated, with degree of polarization up to 99.9% and 50 channels output. 2017 IEEE.
Number of references:3
Main heading:Fibers
Controlled terms:Bandpass filters - Fiber lasers - Optical communication - Polarization - Ring lasers
Uncontrolled terms:Degree of polarization - Er-doped - Highly non-linear fibres - Laser systems - Lyot filters - Multiwavelength
Classification code:703.2 Electric Filters - 717.1 Optical Communication Systems - 744 Lasers - 744.4 Solid State Lasers
Numerical data indexing:Percentage 9.99e+01%
DOI:10.1109/ICOCN.2017.8121447
Funding details: Number: 61275004, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61505244, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under project (No. 61505244) and (No. 61275004).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<365>
Accession number:20174804480258
Title:Integrated generation of high-dimensional entangled photon states and their coherent control
Authors:Reimer, C. (1, 2); Kues, M. (1); Roztocki, P. (1); Romero Cortés, L. (1); Sciara, S. (1, 3); Wetzel, B. (1, 4); Zhang, Y. (1); Cino, A. (3); Chu, S.T. (5); Little, B.E. (6); Moss, D.J. (7); Caspani, L. (8); Aza？a, J. (1); Morandotti, R. (1, 9, 10)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) University of Palermo, Department of Energy, Information Engineering and Mathematical Models, Palermo, Italy; (4) School of Mathematical and Physical Sciences, University of Sussex, Falmer, Brighton; BN1 9RH, United Kingdom; (5) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong; (6) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an, China; (7) Centre for Micro Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (8) Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow; G4 0NW, United Kingdom; (9) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China; (10) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia
Corresponding author:Kues, M.(michael.kues@emt.inrs.ca)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F66-FiO 2017
Part number:1 of 1
Issue title:Frontiers in Optics, FiO 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:Frontiers in Optics, FiO 2017
Conference date:September 18, 2017 - September 21, 2017
Conference location:Washington, DC, United states
Conference code:137738
Publisher:OSA - The Optical Society
Abstract:Exploiting a frequency-domain approach, we demonstrate the generation of highdimensional entangled quantum states with a Hilbert-space dimensionality larger than 100 from an on-chip nonlinear microcavity, and introduce a coherent control platform using standard telecommunications components. OSA 2017.
Number of references:10
Page count:2
Main heading:Quantum entanglement
Controlled terms:Frequency domain analysis - Quantum optics
Uncontrolled terms:Coherent control - Entangled photons - Frequency domain approaches - High-dimensional - On chips - Quantum state
Classification code:921.3 Mathematical Transformations - 931.4 Quantum Theory; Quantum Mechanics
DOI:10.1364/FIO.2017.FTh3E.2
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<366>
Accession number:20171703612462
Title:Intrinsic reduction the depolarization loss in electro-optical Q-switched laser using a rectangular KD*P crystal
Authors:Yin, Xingliang (1); Jiang, Menghua (1); Sun, Zhe (2); Hui, Yongling (1); Lei, Hong (1); Li, Qiang (1)
Author affiliation:(1) Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China; (2) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xian; 710119, China
Corresponding author:Yin, Xingliang(yxl199102@163.com)
Source title:Optics Communications
Abbreviated source title:Opt Commun
Volume:398
Issue date:September 1, 2017
Publication year:2017
Pages:107-111
Language:English
ISSN:00304018
CODEN:OPCOB8
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:We presented the first demonstration of a new structure KD*P crystal as electro-optic switch, in which the thermal depolarization loss was intrinsically reduced. The thermally induced birefringence and depolarization of both cylindrical and rectangular crystalline structure were simulated. The higher pulse energy or average power output was achieved in the diode pumped E-O Q-switched laser using a rectangular KD*P crystal. At the repetition rate of 100 Hz, the maximum average output power was 27.2 W at 145 A pump current, corresponding to the pulse energy was 272 mJ with pulse width of 65 ns and the beam quality of M2=20.4. Comparing the highest average power or corresponding single pulse energy, the laser with the rectangular KD*P crystal was two times of the laser with the traditional cylindrical KD*P crystal. 2017 Elsevier B.V.
Number of references:13
Main heading:Q switched lasers
Controlled terms:Birefringence - Depolarization - Electrooptical materials - Optical pumping - Pulse repetition rate - Q switching - Thermal effects
Uncontrolled terms:Average output power - Crystalline structure - Electro-optic switch - Electro-optical q-switched - Pulse energies - Repetition rate - Single pulse energy - Thermally induced birefringence
Classification code:641 Heat and Mass Transfer; Thermodynamics - 741.1 Light/Optics - 744.1 Lasers, General - 744.8 Laser Beam Interactions - 951 Materials Science
Numerical data indexing:Electric_Current 1.45e+02A, Energy 2.72e-01J, Frequency 1.00e+02Hz, Power 2.72e+01W, Time 6.50e-08s
DOI:10.1016/j.optcom.2017.04.048
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<367>
Accession number:20173604121357
Title:Optical fluxes in coupled PT -symmetric photonic structures (Open Access)
Authors:Ge, Li (1, 2); Makris, Konstantinos G. (3); Zhang, Lingxuan (1, 4)
Author affiliation:(1) Department of Engineering Science and Physics, College of Staten Island, CUNY, Staten Island; NY; 10314, United States; (2) Graduate Center, CUNY, New York; NY; 10016, United States; (3) Department of Physics, University of Crete, P. O. Box 2208, Heraklion; 71003, Greece; (4) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Physical Review A
Abbreviated source title:Phys. Rev. A
Volume:96
Issue:2
Issue date:August 9, 2017
Publication year:2017
Article number:023820
Language:English
ISSN:24699926
E-ISSN:24699934
Document type:Journal article (JA)
Publisher:American Physical Society
Abstract:In this work we first examine transverse and longitudinal fluxes in a PT-symmetric photonic dimer using a coupled-mode theory. Several surprising understandings are obtained from this perspective: The longitudinal flux shows that the PT transition in a dimer can be regarded as a classical effect, despite its analogy to PT-symmetric quantum mechanics. The longitudinal flux also indicates that the so-called giant amplification in the PT-symmetric phase is a subexponential behavior and does not outperform a single gain waveguide. The transverse flux, on the other hand, reveals that the apparent power oscillations between the gain and loss waveguides in the PT-symmetric phase can be deceiving in certain cases, where the transverse power transfer is in fact unidirectional. We also show that this power transfer cannot be arbitrarily fast even when the exceptional point is approached. Finally, we go beyond the coupled-mode theory by using the paraxial wave equation and also extend our discussions to a PT diamond and a one-dimensional periodic lattice. 2017 American Physical Society.
Number of references:46
Main heading:Lattice theory
Controlled terms:Energy transfer - Optical waveguides - Quantum theory - Wave equations
Uncontrolled terms:Classical effects - Coupled mode theory - Exceptional points - Paraxial wave equation - Periodic lattices - Photonic structure - Symmetric phase - Transverse flux
Classification code:714.3 Waveguides - 921.2 Calculus - 922.2 Mathematical Statistics - 931.4 Quantum Theory; Quantum Mechanics
DOI:10.1103/PhysRevA.96.023820
Funding details: Number: DMR-1506987, Acronym: NSF, Sponsor: Norsk Sykepleierforbund;
Funding text:L.G. acknowledges support by NSF under Grant No. DMR-1506987. K.G.M. acknowledges support by the European Commission under projects NOLACOME (PIOF 303228) and NHQWAVE (MSCA-RISE 691209) and by the European Union Seventh Framework Program (FP7-REGPOT-2012-2013-1) under Grant No. 316165.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<368>
Accession number:20165003114668
Title:Athermal design of refractive/diffractive hybrid infrared optical system
Authors:Jiang, Yanru (1, 2); Wang, Jing (1, 2); Xie, Qingkun (1, 2); Zhang, Wenfei (1, 2); Qu, Enshi (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 101408, China
Corresponding author:Qu, Enshi(quenshi@163.com)
Source title:Optik
Abbreviated source title:Optik
Volume:131
Issue date:February 1, 2017
Publication year:2017
Pages:592-597
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Elsevier GmbH
Abstract:Regarding the poor work conditions of military infrared optical instruments, there is usually a strong demand for athermalization and high resolution design. According to the properties of diffractive components in the optical passive athermalization, a diffractive-refractive hybrid infrared optical system working at 8 um–12 um is designed. It only contains four lenses with two aspheric and two diffractive surfaces, resulting in solutions with reducing overall size and weight, as well as enhancing performance characteristics. The MTF of this system demonstrates the optical system can realize athermalization over the temperature range from ？40 °C to 60 °C. In addition, the chromatic aberration and second spectrum are corrected simultaneously. 2016
Number of references:13
Main heading:Aberrations
Controlled terms:Hybrid systems - Optical systems
Uncontrolled terms:Athermal designs - Chromatic correction - Diffractive components - High resolution design - Infrared optical systems - Passive athermalization - Performance characteristics - Second spectrum
Classification code:741.3 Optical Devices and Systems - 921 Mathematics
Numerical data indexing:Temperature 3.33e+02K
DOI:10.1016/j.ijleo.2016.11.195
Funding details: Number: 61505246, Acronym: -, Sponsor: National Aerospace Science Foundation of China;
Funding text:This work was supported by the National Nature Science Foundation of China (Grant No. 61505246 ).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<369>
Accession number:20171103448075
Title:Mid-infrared transmitter and receiver modules for free-space optical communication
Authors:Hao, Qiang (1); Zhu, Guoshen (1); Yang, Song (1); Yang, Kangwen (1); Duan, Tao (2); Xie, Xiaoping (2); Huang, Kun (3); Zeng, Heping (1, 4)
Author affiliation:(1) Shanghai Key Laboratory of Modern Optical Systems, Engineering Research Center of Optical Instruments and Systems, Ministry of Education, School of Optical Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai; 200093, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, 4 place Jussieu, Paris; 75005, France; (4) State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai; 200062, China
Corresponding author:Zeng, Heping(hpzeng@phy.ecnu.edu.cn)
Source title:Applied Optics
Abbreviated source title:Appl. Opt.
Volume:56
Issue:8
Issue date:March 10, 2017
Publication year:2017
Pages:2260-2264
Language:English
ISSN:1559128X
E-ISSN:21553165
CODEN:APOPAI
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We report on the experimental implementation of single-frequency fiber-laser pumped mid-infrared (mid-IR) transmitter and receiver modules for free-space communications. These modules enable frequency upconversion and downconversion between the 1550-nm telecom wavelength and the mid-IR, thus providing essential free-space transmission links with mid-IR single-frequency lasers in the 3.6 μm region. Specifically, based on difference frequency generation (DFG) in MgO-doped periodically poled LiNbO
Number of references:24
Main heading:Optical communication
Controlled terms:Amplifiers (electronic) - Fiber amplifiers - Fiber lasers - Fibers - Infrared devices - Lithium compounds - Magnesia - Niobium compounds - Optical frequency conversion - Optical transceivers - Optical transmitters - Polarization-maintaining fiber - Pumping (laser) - Signal receivers
Uncontrolled terms:Difference-frequency generation - Free Space Optical communication - Free-space communication - Free-space transmission - Frequency up-conversion - Periodically poled LiNbO3 - Single frequency fiber lasers - Transmitter and receiver
Classification code:713.1 Amplifiers - 717.1 Optical Communication Systems - 717.2 Optical Communication Equipment - 741.1.1 Nonlinear Optics - 741.1.2 Fiber Optics - 744.1 Lasers, General - 744.4 Solid State Lasers - 804.2 Inorganic Compounds
Numerical data indexing:Power 3.00e+00W, Power 4.70e+00W, Power 5.00e+00W, Power 5.00e-03W, Power 9.30e-03W, Size 1.08e-06m, Size 1.55e-06m, Size 3.59e-06m, Size 3.60e-06m, Power 1.20e-05W
DOI:10.1364/AO.56.002260
Funding details: Number: 13ZR1458100, Acronym: STCSM, Sponsor: Science and Technology Commission of Shanghai Municipality;Number: -, Acronym: STCSM, Sponsor: Science and Technology Commission of Shanghai Municipality;Number: 11374370, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11404211, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11434005, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Key Scientific Instrument Project (2012YQ150092); National Natural Science Foundation of China (NSFC) (11374370, 11404211, 11434005); Science and Technology Commission of Shanghai Municipality (STCSM) (13ZR1458100).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<370>
Accession number:20174104257578
Title:Efficient supervised hashing via exploring local and inner data structure
Authors:He, Shiyuan (1); Ye, Guo (1); Hu, Mengqiu (1); Yang, Yang (1); Shen, Fumin (1); Shen, Heng Tao (1); Li, Xuelong (2)
Author affiliation:(1) School of Computer Science and Engineering, Center for Future Media, University of Electronic Science and Technology of China, Chengdu, China; (2) State Key Laboratory of Transient Optics and Photonics, Center for OPTical IMagery Analysis and Learning (OPTIMAL), Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Beijing, China
Corresponding author:Yang, Yang(dlyyang@gmail.com)
Source title:Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Abbreviated source title:Lect. Notes Comput. Sci.
Volume:10538 LNCS
Part number:1 of 1
Issue title:Databases Theory and Applications - 28th Australasian Database Conference, ADC 2017, Proceedings
Issue date:2017
Publication year:2017
Pages:98-109
Language:English
ISSN:03029743
E-ISSN:16113349
ISBN-13:9783319681542
Document type:Conference article (CA)
Conference name:28th Australasian Database Conference, ADC 2017
Conference date:September 25, 2017 - September 28, 2017
Conference location:Brisbane, QLD, Australia
Conference code:199349
Publisher:Springer Verlag
Abstract:Recent years have witnessed the promising capacity of hashing techniques in tackling nearest neighbor search because of the high efficiency in storage and retrieval. Data-independent approaches (e.g., Locality Sensitive Hashing) normally construct hash functions using random projections, which neglect intrinsic data properties. To compensate this drawback, learning-based approaches propose to explore local data structure and/or supervised information for boosting hashing performance. However, due to the construction of Laplacian matrix, existing methods usually suffer from the unaffordable training cost. In this paper, we propose a novel supervised hashing scheme, which has the merits of (1) exploring the inherent neighborhoods of samples; (2) significantly saving training cost confronted with massive training data by employing approximate anchor graph; as well as (3) preserving semantic similarity by leveraging pair-wise supervised knowledge. Besides, we integrate discrete constraint to significantly eliminate accumulated errors in learning reliable hash codes and hash functions. We devise an alternative algorithm to efficiently solve the optimization problem. Extensive experiments on two image datasets demonstrate that our proposed method is superior to the state-of-the-arts. 2017, Springer International Publishing AG.
Number of references:24
Main heading:Digital storage
Controlled terms:Data structures - Database systems - Hash functions - Image retrieval - Knowledge management - Matrix algebra - Nearest neighbor search - Semantics
Uncontrolled terms:Alternative algorithms - Approximate anchor graph - Inherent neighborhood - Learning-based approach - Locality sensitive hashing - Optimization problems - Storage and retrievals - Supervised hashing
Classification code:722.1 Data Storage, Equipment and Techniques - 723 Computer Software, Data Handling and Applications - 921.1 Algebra - 921.5 Optimization Techniques
DOI:10.1007/978-3-319-68155-9_8
Funding details: Number: 61632007, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61572108, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61502081, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: ZYGX2015J055, Acronym: -, Sponsor: -;Number: ZYGX2014Z007, Acronym: -, Sponsor: -;
Funding text:Acknowledgments. This work was supported in part by the National Natural Science Foundation of China under Project 61572108, Project 61632007 and Project 61502081, the National Thousand-Young-Talents Program of China, and the Fundamental Research Funds for the Central Universities under Project ZYGX2014Z007 and Project ZYGX2015J055.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<371>
Accession number:20183105636554
Title:A new image fusion algorithm based on bayer format
Authors:Wang, Hao (1); Yan, Su (1); Yang, Lei (1); Wang, Hua (1); Feng, Jia (1); Wang, Huawei (1); Liu, Qing (1); Yan, Aqi (1); Liao, Jiawen (1); Liu, Guangsen (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:2016 13th International Computer Conference on Wavelet Active Media Technology and Information Processing, ICCWAMTIP 2017
Abbreviated source title:Int. Comput. Conf. Wavelet Act. Media Technol. Inf. Process., ICCWAMTIP
Volume:2018-February
Part number:1 of 1
Issue title:2016 13th International Computer Conference on Wavelet Active Media Technology and Information Processing, ICCWAMTIP 2017
Issue date:July 2, 2017
Publication year:2017
Pages:158-161
Language:English
ISBN-13:9781509061259
Document type:Conference article (CA)
Conference name:14th International Computer Conference on Wavelet Active Media Technology and Information Processing, ICCWAMTIP 2017
Conference date:December 15, 2017 - December 17, 2017
Conference location:Chengdu, Sichuan Province, China
Conference code:135072
Sponsor:China International Talent Exchange Foundation; National High Technology Research and Development Program of China; The National Natural Science Foundation of China (NSFC)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:At present, all the algorithms are based on RGB image fusion, and in fact most of the image acquisition and imaging equipment but not the RGB image, a color filter array based on the most common color in the array is the BAYER image format. This paper mainly expands a fusion algorithm based BAYER format. The new algorithm is better than RGB in standard deviation, spatial frequency and information entropy. From comparison of calculation amount, the algorithm of Bayer is less than that of RGB. 2017 IEEE.
Number of references:11
Main heading:Image fusion
Controlled terms:Computer science - Computers
Uncontrolled terms:Bayer image - Color filter arrays - Fusion algorithms - Image fusion algorithms - Information entropy - RGB images - Spatial frequency - Standard deviation
Classification code:723.2 Data Processing and Image Processing
DOI:10.1109/ICCWAMTIP.2017.8301469
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<372>
Accession number:20173104014265
Title:Feature Selection Based on Structure Preserving for Hyperspectral Image Combination with Multi-scale Spatial Filtering and Hierarchical Network
Authors:Hou, Bang-Huan (1); Zhang, Geng (2); Wang, Fei (3); Yu, Wei-Zhong (1, 3); Yao, Min-Li (1); Hu, Bing-Liang (2)
Author affiliation:(1) Department of Information Engineering, Rocket Force Engineering University, Xi'an; 710025, China; (2) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China; (3) School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an; 710048, China
Corresponding author:Hu, Bing-Liang(hbl@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:5
Issue date:May 1, 2017
Publication year:2017
Article number:0510003
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:In order to make full use of the abundant spectral and spatial information of hyperspectral images, a novel feature selection algorithm based on the structure preserving combination with the multi-scale spatial filtering and the hierarchical network is proposed. The feature subset that best preserving the global similarity and the local manifold structure is selected via l
Number of references:21
Main heading:Information filtering
Controlled terms:Beamforming - Classification (of information) - Feature extraction - Hyperspectral imaging - Independent component analysis - Nonlinear filtering - Spectroscopy
Uncontrolled terms:Adaptive parameter setting - Bilateral filtering - Classification accuracy - Feature selection algorithm - Hierarchical network - Local manifold structure - Manifold learning - Spatial neighbors
Classification code:711.2 Electromagnetic Waves in Relation to Various Structures - 716.1 Information Theory and Signal Processing - 903.1 Information Sources and Analysis
Numerical data indexing:Percentage 9.10e+01%, Percentage 9.42e+01%
DOI:10.3788/gzxb20174605.0510003
Funding details: Number: 2014M562636, Acronym: -, Sponsor: China Postdoctoral Science Foundation;Number: 61401471, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The National Natural Science Foundation of China (No.61401471) and the China Postdoctoral Science Foundation (No. 2014M562636).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<373>
Accession number:20182305271222
Title:Design of multichannel data acquisition system based on Ethernet
Authors:He, Bian (1); Guangsen, Liu (1); Huawei, Wang (1); Jia, Feng (1); Bo, Gao (1); Hongtao, Yang (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Source title:International Conference on Communication Technology Proceedings, ICCT
Abbreviated source title:Int. Conf. Commun. Technol. Proc. ICCT
Volume:2017-October
Part number:1 of 1
Issue title:2017 17th IEEE International Conference on Communication Technology, ICCT 2017
Issue date:July 2, 2017
Publication year:2017
Pages:692-695
Language:English
ISBN-13:9781509039432
Document type:Conference article (CA)
Conference name:17th IEEE International Conference on Communication Technology, ICCT 2017
Conference date:October 27, 2017 - October 30, 2017
Conference location:Chengdu, China
Conference code:136565
Sponsor:IEEE; SIE
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In order to multi-channel image data can be collected at the same time, Data package, Sent to the host computer, a multi-channel data acquisition scheme based on Ethernet transmission is proposed. Using synchronous RS422 bus + FPGA + Gigabit Ethernet hardware platform and multi-channel image data loop acquisition algorithm to achieve multi-channel image data through the synchronous RS422 bus into the FPGA, time-sharing by the FPGA for each road data collection, and then Gigabit Ethernet Network sent to the host computer. In the FPGA, the MAC address, IP address, UDP header and channel number are added to each image data, and the multi-channel data collection algorithm is adopted to overcome the phenomena of image data loss and channel disorder. 8 camera modules as a data source for testing, the results show that each road image data is completely correct to the host computer for display, image data packet loss rate of 0%, repeat rate of 0%, to meet the expected requirements, to achieve the purpose of detection of multi-channel transmission of data. 2017 IEEE.
Number of references:10
Main heading:Data acquisition
Controlled terms:Computer hardware - Ethernet - Field programmable gate arrays (FPGA) - Integrated circuit design - Roads and streets
Uncontrolled terms:Channel disorder - Data collection - Gigabit ethern - Gigabit Ethernet - Gigabit Ethernet networks - Logic control - Multi-channel transmission - Multichannel data
Classification code:406.2 Roads and Streets - 714.2 Semiconductor Devices and Integrated Circuits - 721.2 Logic Elements - 722 Computer Systems and Equipment - 722.3 Data Communication, Equipment and Techniques - 723.2 Data Processing and Image Processing
Numerical data indexing:Percentage 0.00e+00%
DOI:10.1109/ICCT.2017.8359725
Funding details: Number: Y529571233, Acronym: -, Sponsor: Chinese Academy of Sciences;
Funding text:ACKNOWLEDGMENT We gratefully acknowledge the support of Chinese Academy of Sciences, through the grant number Y529571233.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<374>
Accession number:20162502526680
Title:Statistical Hypothesis Detector for Abnormal Event Detection in Crowded Scenes
Authors:Yuan, Yuan (1); Feng, Yachuang (1, 2); Lu, Xiaoqiang (1)
Author affiliation:(1) Center for Optical Imagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian; 710119, China; (2) University of the Chinese Academy of Sciences, Beijing; 100049, China
Source title:IEEE Transactions on Cybernetics
Abbreviated source title:IEEE Trans. Cybern.
Volume:47
Issue:11
Issue date:November 2017
Publication year:2017
Pages:3597-3608
Article number:7490361
Language:English
ISSN:21682267
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Abnormal event detection is now a challenging task, especially for crowded scenes. Many existing methods learn a normal event model in the training phase, and events which cannot be well represented are treated as abnormalities. However, they fail to make use of abnormal event patterns, which are elements to comprise abnormal events. Moreover, normal patterns in testing videos may be divergent from training ones, due to the existence of abnormalities. To address these problems, in this paper, an abnormality detector is proposed to detect abnormal events based on a statistical hypothesis test. The proposed detector treats each sample as a combination of a set of event patterns. Due to the unavailability of labeled abnormalities for training, abnormal patterns are adaptively extracted from incoming unlabeled testing samples. Contributions of this paper are listed as follows: 1) we introduce the idea of a statistical hypothesis test into the framework of abnormality detection, and abnormal events are identified as ones containing abnormal event patterns while possessing high abnormality detector scores; 2) due to the complexity of video events, noise seldom follows a simple distribution. For this reason, we approximate the complex noise distribution by employing a mixture of Gaussian. This benefits the modeling of video events and improves abnormality detection accuracies; and 3) because of the existence of abnormalities, there are always some unusually occurring normal events in the testing videos, which differ from the training ones. To represent normal events precisely, an online updating strategy is proposed to cover these cases in the normal event patterns. As a result, false detections are eliminated mostly. Extensive experiments and comparisons with state-of-the-art methods verify the effectiveness of the proposed algorithm. 2013 IEEE.
Number of references:52
Main heading:Statistical tests
Controlled terms:Electric breakdown - Mixtures
Uncontrolled terms:Abnormal event detections - Abnormal patterns - Abnormality detection - Mixture of Gaussians - State-of-the-art methods - Statistical hypothesis - Statistical hypothesis test - Updating strategy
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 922.2 Mathematical Statistics
DOI:10.1109/TCYB.2016.2572609
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<375>
Accession number:20173804169338
Title:Automatic Bifurcation angle calculation in intravascular optical coherence tomography images
Authors:Cao, Yihui (1); Liu, Chao (2); Jin, Qinhua (3); Chen, Yundai (3); Yin, Qinye (4); Li, Jianan (1); Zhao, Wei (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'An Jiaotong University, University of Chinese Academy of Sciences, China; (2) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Shaanxi Normal University, China; (3) Department of Cardiology, Chinese PLA General Hospital, Beijing, China; (4) School of the Electronic and Information Engineering, Xi'An Jiaotong University, China
Source title:2017 2nd International Conference on Image, Vision and Computing, ICIVC 2017
Abbreviated source title:Int. Conf. Image, Vis. Comput., ICIVC
Part number:1 of 1
Issue title:2017 2nd International Conference on Image, Vision and Computing, ICIVC 2017
Issue date:July 18, 2017
Publication year:2017
Pages:650-654
Article number:7984636
Language:English
ISBN-13:9781509062379
Document type:Conference article (CA)
Conference name:2nd International Conference on Image, Vision and Computing, ICIVC 2017
Conference date:June 2, 2017 - June 4, 2017
Conference location:Chengdu, China
Conference code:129351
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:This Bifurcation angle (BA) has important predictive value for outcome of percutaneous coronary intervention (PCI) and the selection of interventional instruments and strategies. Therefore, bifurcation angle requires precise measurements. Intravascular optical coherence tomography (IVOCT) is the state-of-the-art high-resolution imaging modality which provides the possibility of the accurate measurements of bifurcation angle. However, to the best of our knowledge, there is no published work for calculating bifurcation angle based on IVOCT images. Inspired by previous studies on carotid bifurcation angle measurement based on black-blood magnetic resonance imaging, we creatively proposed a fully automatic computing method for bifurcation angle based on the detection of centers of the main vessel and side branch. Then, the detected center points are projected into a fitting plane by minimizing the reconstruction error to calculate the bifurcation angle. Finally, the 3D reconstructed main vessel and side branch demonstrate the proposed bifurcation angle calculation method is accessible. 2017 IEEE.
Number of references:7
Main heading:Bifurcation (mathematics)
Controlled terms:Magnetic resonance imaging - Optical tomography
Uncontrolled terms:Accurate measurement - High-resolution imaging - Intravascular - Main vessel - Percutaneous coronary intervention - Precise measurements - Reconstruction error - Side branches
Classification code:741.3 Optical Devices and Systems - 746 Imaging Techniques
DOI:10.1109/ICIVC.2017.7984636
Funding details: Number: KFJ-SW-STS-185, Acronym: -, Sponsor: -;
Funding text:This work is supported by the Chinese Academy of Science and technology service network plan (Grant No. KFJ-SW-STS-185).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<376>
Accession number:20180404671641
Title:Reconfigurable microwave photonic transversal filter based on an integrated Kerr comb
Authors:Xu, Xingyuan (1); Wu, Jiayang (1); Nguyen, Thach G. (2); Shoeiby, Mehrdad (2); Chu, Sai T. (3); Little, Brent E. (4); Morandotti, Roberto (5); Mitchell, Arnan (2); Moss, David J. (1)
Author affiliation:(1) Centre for Micro-Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (2) School of Engineering, RMIT University, Melbourne; VIC; 3000, Australia; (3) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, Hong Kong; (4) Xi'an Institute of Optics and Precision Mechanics Precision Mechanics of CAS, Xi'an, China; (5) INRS-énergie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10456
Part number:1 of 1
Issue title:Nanophotonics Australasia 2017
Issue date:2017
Publication year:2017
Article number:1045660
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510613935
Document type:Conference article (CA)
Conference name:Nanophotonics Australasia 2017
Conference date:December 10, 2017 - December 13, 2017
Conference location:Melbourne, VIC, Australia
Conference code:133393
Sponsor:AXT Inc.; Lastek; neaspec GmbH; PriTel, Inc.; Swinburne University of Technology; WITec
Publisher:SPIE
Abstract:A reconfigurable microwave photonic filter (MPF) based on an integrated Kerr comb source was proposed and demonstrated. By employing an on-chip micro-ring resonator (MRR), a broadband Kerr comb with a large number of comb lines was generated and used as a high-quality multi-wavelength source for the MPF, which greatly reduced the size and cost. The enhanced performance of the MPF was theoretically analysed and systematically characterized. Due to the large channel number and high reconfigurability of the scheme, the MPF features an improved Q factor and wideband tunability. The experimental results matches well with theory, verifying the feasibility of our approach as a solution towards implementing highly reconfigurable MPFs with reduced system complexity. COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
Number of references:39
Main heading:Comb filters
Controlled terms:Bandpass filters - Microwave filters - Nanophotonics - Optical resonators - Optical signal processing - Q factor measurement - Signal processing - Transversal filters
Uncontrolled terms:Microring resonator - Microring Resonator (MRR) - Microwave photonic filter (MPF) - Microwave Photonics - Multi-wavelength source - Optical frequency combs - Re-configurability - Wideband tunability
Classification code:703.2 Electric Filters - 716.1 Information Theory and Signal Processing - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 942.2 Electric Variables Measurements
DOI:10.1117/12.2283456
Funding details: Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;Number: -, Acronym: -, Sponsor: Canada Research Chairs;Number: DP150104327, Acronym: -, Sponsor: -;Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;Number: 074-U 01, Acronym: -, Sponsor: Government Council on Grants, Russian Federation;
Funding text:This work was supported by the Australian Research Council Discovery Projects Program (No. DP150104327). RM acknowledges support by Natural Sciences and Engineering Research Council of Canada (NSERC) through the Strategic, Discovery and Acceleration Grants Schemes, by the MESI PSR-SIIRI Initiative in Quebec, and by the Canada Research Chair Program. He also acknowledges additional support by the Government of the Russian Federation through the ITMO Fellowship and Professorship Program (grant 074-U 01) by the 1000 Talents Sichuan Program.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<377>
Accession number:20170403275934
Title:Non-negative infrared patch-image model: Robust target-background separation via partial sum minimization of singular values
Authors:Dai, Yimian (1); Wu, Yiquan (1, 2, 3); Song, Yu (1); Guo, Jun (1)
Author affiliation:(1) College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 211106, China; (2) Key Laboratory of Spectral Imaging Technology CAS, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710000, China; (3) State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu; 610500, China
Corresponding author:Dai, Yimian
Source title:Infrared Physics and Technology
Abbreviated source title:Infrared Phys Technol
Volume:81
Issue date:March 1, 2017
Publication year:2017
Pages:182-194
Language:English
ISSN:13504495
CODEN:IPTEEY
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:To further enhance the small targets and suppress the heavy clutters simultaneously, a robust non-negative infrared patch-image model via partial sum minimization of singular values is proposed. First, the intrinsic reason behind the undesirable performance of the state-of-the-art infrared patch-image (IPI) model when facing extremely complex backgrounds is analyzed. We point out that it lies in the mismatching of IPI model's implicit assumption of a large number of observations with the reality of deficient observations of strong edges. To fix this problem, instead of the nuclear norm, we adopt the partial sum of singular values to constrain the low-rank background patch-image, which could provide a more accurate background estimation and almost eliminate all the salient residuals in the decomposed target image. In addition, considering the fact that the infrared small target is always brighter than its adjacent background, we propose an additional non-negative constraint to the sparse target patch-image, which could not only wipe off more undesirable components ulteriorly but also accelerate the convergence rate. Finally, an algorithm based on inexact augmented Lagrange multiplier method is developed to solve the proposed model. A large number of experiments are conducted demonstrating that the proposed model has a significant improvement over the other nine competitive methods in terms of both clutter suppressing performance and convergence rate. 2017 Elsevier B.V.
Number of references:37
Main heading:Image enhancement
Controlled terms:Clutter (information theory) - Echo suppression - Infrared imaging - Lagrange multipliers
Uncontrolled terms:Augmented lagrange multiplier methods - Background estimation - Complex background - Convergence rates - Image modeling - Infrared small targets - Singular values - Target background
Classification code:716.1 Information Theory and Signal Processing - 746 Imaging Techniques
DOI:10.1016/j.infrared.2017.01.009
Funding details: Number: LSIT201401, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61573183, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: PLN1303, Acronym: SWPU, Sponsor: Southwest Petroleum University;
Funding text:The authors gratefully acknowledge the financial supports by National Natural Science Foundation of China under Grant No. 61573183, Open Research Fund of Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences under Grant No. LSIT201401, Open Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) under Grant No. PLN1303.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<378>
Accession number:20171103448305
Title:All-fiber dissipative soliton laser based on single-walled carbon nanotube absorber in normal dispersion regime
Authors:Duan, L.N. (1); Li, L. (2); Wang, Y.G. (2); Wang, X. (2)
Author affiliation:(1) School of Science, Xi'an Shiyou University, Xi'an; 710065, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China
Corresponding author:Wang, Y.G.(chinawygxjw@opt.ac.cn)
Source title:Optik
Abbreviated source title:Optik
Volume:137
Issue date:May 1, 2017
Publication year:2017
Pages:308-312
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Elsevier GmbH
Abstract:We demonstrat a compact Yb-doped fiber (YDF) laser based on the single-walled carbon nanotube (SWCNT) wall-paper absorber. It can operate at dissipative solitons mode-locking state stably for more than 24 h at the room temperature, and there is no significant degradation of the laser spectra, pulse train, and output power. The spectral bandwidth of the mode-locked pulses varies from 0.35 to 0.64 nm depending on the level of the pump power. The amplified pulses possess single pulse energy of 3.87 nJ and pulse duration of 421.9 ps. The repetition rate is ～23.83 MHz. The largest output power reaches 92.3 mW. 2017 Elsevier GmbH
Number of references:37
Main heading:Single-walled carbon nanotubes (SWCN)
Controlled terms:Fiber lasers - Laser mode locking - Locks (fasteners) - Mode-locked fiber lasers - Optical pumping - Photodegradation - Q switched lasers - Solitons - Yarn
Uncontrolled terms:Amplified pulse - Dissipative solitons - Mode-locked pulse - Normal dispersion - Pulse durations - Single pulse energy - Singlewalled carbon nanotube (SWCNT) - Spectral bandwidth
Classification code:741.1 Light/Optics - 744.1 Lasers, General - 744.4 Solid State Lasers - 761 Nanotechnology - 819.4 Fiber Products
DOI:10.1016/j.ijleo.2017.03.028
Funding details: Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61378024, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the ?Hundreds of Talents Programs? of the Chinese Academy of Sciences and by the National Natural Science Foundation of China under Grants 61378024.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<379>
Accession number:20172103693124
Title:Transfer process of LT-GaAs epitaxial films for on-chip terahertz antenna integrated device
Authors:Guo, Chun-Yan (1, 2, 3); Xu, Jian-Xing (3, 4); Peng, Hong-Ling (5); Ni, Hai-Qiao (4); Wang, Tao (1); Tian, Jin-Shou (1); Niu, Zhi-Chuan (4); Wu, Zhao-Xin (2); Zuo, Jian (6); Zhang, Cun-Lin (6)
Author affiliation:(1) Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology of CAS, Xi'an Institute of Optics and Precision Mechanics, Xi'an; 710119, China; (2) Xi'an Jiaotong University, Xi'an; 710049, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China; (4) State Key Laboratory for Superlattices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing; 100083, China; (5) Laboratory for Solid State Photoelectric Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing; 100083, China; (6) Key Laboratory of Terahertz Optoelectronics, Department of Physics, Capital Normal University, Beijing; 100048, China
Corresponding author:Niu, Zhi-Chuan(zcniu@semi.ac.cn)
Source title:Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves
Abbreviated source title:Hongwai Yu Haomibo Xuebao
Volume:36
Issue:2
Issue date:April 1, 2017
Publication year:2017
Pages:220-224 and 234
Language:Chinese
ISSN:10019014
CODEN:HHXUEZ
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:A process for LT-GaAs used as photoconductive switch in epitaxial layer transfer of on-chip THz antenna integrated device was provided. Hall indicated resistivity of the epitaxial materials gained by MBE was about 106Ω·cm. HNO
Number of references:20
Main heading:Semiconducting gallium
Controlled terms:Ammonium hydroxide - Antennas - Gallium arsenide - III-V semiconductors - Lithography - Nitric acid - Photoconductive switches - Photoconductivity - Semiconductor switches - Wet etching
Uncontrolled terms:Epitaxial layer transfers - Epitaxial materials - High power - Integrated device - LT-GaAs - Terahertz antennas - THz antenna - Transfer process
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 712.1.1 Single Element Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 804 Chemical Products Generally - 804.2 Inorganic Compounds
DOI:10.11972/j.issn.1001-9014.2017.02.016
Funding details: Number: 2012YQ140005, Acronym: -, Sponsor: -;Number: KM201610028005, Acronym: -, Sponsor: Beijing Municipal Commission of Education;Number: 61274125, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11204190, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Supported by National Natural Science Foundation of China (11204190, 61274125), the General Program of Science and Technology Development Project of Beijing Municipal Education Commission of China(KM201610028005), National Key Scientific Instrument and Equipment Development Project of China (2012YQ140005).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<380>
Accession number:20170803366295
Title:Superhydrophilic Antireflective Periodic Mesoporous Organosilica Coating on Flexible Polyimide Substrate with Strong Abrasion-Resistance
Authors:Wang, Jing (1, 2, 4); Zhang, Cong (1, 4); Yang, Chunming (3); Zhang, Ce (1, 4); Wang, Mengchao (1, 4); Zhang, Jing (1, 2, 4); Xu, Yao (2)
Author affiliation:(1) Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan; 030001, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai; 201204, China; (4) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Xu, Yao(xuyao@opt.ac.cn)
Source title:ACS Applied Materials and Interfaces
Abbreviated source title:ACS Appl. Mater. Interfaces
Volume:9
Issue:6
Issue date:February 15, 2017
Publication year:2017
Pages:5468-5476
Language:English
ISSN:19448244
E-ISSN:19448252
Document type:Journal article (JA)
Publisher:American Chemical Society
Abstract:Superhydrophilic antireflective periodic mesoporous organosilica (PMO) coating was prepared on flexible polyimide substrate via solvent-evaporation-induced self-assembly (SEISA) method, in which tetraethoxysilane (TEOS) and a special bridged silsesquioxane were used as reactants. The bridged silsesquioxane, EG-BSQ, was synthesized through the stoichiometric reaction between 3-glycidoxyporpyltrimethoxysilane (GPTMS) and ethylene diamine (EDA). Under the influence of surfactant, TEOS and EG-BSQ co-condensed and enclosed the ordered mesporous in the coating. The results of grazing-incidence small-angle X-ray scattering (GISAXS) and the transmission electron microscope (TEM) indicated that the mesopores belonged to a Fmmm orthorhombic symmetry structure. With increasing EG-BSQ concentration, the mesoporous structure in the PMO coating becomes more and more disordered because silica mesopore walls shrunk or collapsed during calcination and consequently the refractive index of PMO coating became larger. The antireflective (AR) PMO coating showed an optical transmittance of 99.54% on polyimide (PI) much higher than the 88.68% of bare PI. The water contact angle of PMO coating was less than 9.0°, which indicated the AR PMO coating was superhydrophilic. Moreover, the PMO coating showed an excellent mechanical property, the transmittance of the PMO coating displayed a very low loss of 0.1% after abrasion of 25 cycles by CS-10F wearaser. 2017 American Chemical Society.
Number of references:36
Main heading:Coatings
Controlled terms:Abrasion - Ethylene - Hydrophilicity - Mesoporous materials - Polyimides - Refractive index - Self assembly - Silica - Transmission electron microscopy - Tribology - Wear resistance - X ray scattering
Uncontrolled terms:Anti-reflective - Flexible polyimide substrate - Grazing incidence small-angle X-ray scattering - Mesoporous structures - Orthorhombic symmetry - Periodic mesoporous organosilicas - Stoichiometric reaction - Super-hydrophilic
Classification code:741.1 Light/Optics - 804.1 Organic Compounds - 813.2 Coating Materials - 815.1.1 Organic Polymers - 931 Classical Physics; Quantum Theory; Relativity - 931.2 Physical Properties of Gases, Liquids and Solids - 932.1 High Energy Physics - 951 Materials Science
Numerical data indexing:Percentage 1.00e-01%, Percentage 8.87e+01%, Percentage 9.95e+01%
DOI:10.1021/acsami.6b14117
Funding details: Number: -, Acronym: UW, Sponsor: University of Washington;Number: U1530148, Acronym: -, Sponsor: National Aerospace Science Foundation of China;
Funding text:This work was supported by the National Key Native Science Foundation of China (No. U1530148). Additionally, the authors gratefully acknowledge the assistance of Prof. Hugh W. Hillhouse and Dr Steve Gaik of University of Washington during the analysis of GISAXS patterns.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<381>
Accession number:20190206352177
Title:Small period long period grating with enhanced sensitivity in low refractive index region
Authors:Shen, Fangcheng (1); Zhou, Kaiming (2, 3); Zhang, Lin (2); Shu, Xuewen (1)
Author affiliation:(1) Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan; 430074, China; (2) Aston Institute of Photonic Technologies, Aston University, Birmingham; B4 7ET, United Kingdom; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F122-CLEOPR 2017
Part number:1 of 1
Issue title:Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
Issue date:2017
Publication year:2017
Article number:s1514
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
Conference date:July 31, 2017 - August 4, 2017
Conference location:Singapore, Singapore
Conference code:140608
Publisher:OSA - The Optical Society
Abstract:Long period grating with a grating period of 15 μm is fabricated with a femtosecond laser. Such a small period grating enables coupling of fundamental core mode with high order cladding modes that have effective refractive index close to water, and exhibits an enhanced sensitivity in low refractive index region. 2018 Optics InfoBase Conference Papers. All rights reserved.
Number of references:6
Main heading:Refractive index
Controlled terms:Femtosecond lasers - Fiber optic sensors - Optical fiber fabrication - Optical fibers - Refractometers
Uncontrolled terms:Cladding modes - Effective refractive index - Enhanced sensitivity - Fundamental core mode - Grating periods - Long Period Gratings - Low refractive index - Refractive index sensor
Classification code:741.1 Light/Optics - 741.1.2 Fiber Optics - 941.3 Optical Instruments
Numerical data indexing:Size 1.50e-05m
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<382>
Accession number:20171503546567
Title:Evaluation of the un-eliminated laser phase noise induced by interferometer imbalance in self-homodyne coherent optical RF receivers
Authors:Zhang, Huixing (1, 2); Wen, Aijun (1); Gao, Yongsheng (1); Zhang, Song (1); Xiang, Shuiying (1); Lin, Lin (1)
Author affiliation:(1) State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an; 710071, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Zhang, Huixing
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10244
Part number:1 of 1
Issue title:International Conference on Optoelectronics and Microelectronics Technology and Application
Issue date:2017
Publication year:2017
Article number:102441L
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510609891
Document type:Conference article (CA)
Conference name:International Conference on Optoelectronics and Microelectronics Technology and Application 2016, OMTA 2016
Conference date:October 10, 2016 - October 12, 2016
Conference location:Shanghai, China
Conference code:127002
Sponsor:Chinese Academy of Engineering National; Chinese Society for Optical Engineering; Information and Electronic Engineering Faculty; National Natural Science Foundation of China
Publisher:SPIE
Abstract:Coherent optical RF receivers constructed in self-homodyne configurations have gained considerable attention due to its simplicity and cost-efficiency. Rigorous symmetry is required in such system to suppress the laser phase noise. A method for evaluation of the un-eliminated laser phase noise in self-homodyne coherent optical RF receivers has been presented in this paper. In our proposed scheme, the un-eliminated laser phase noise is acquired by simply inserting an FBG in the in-phase arm and is found to be dependent on the interferometer asymmetry, i.e., the path imbalance of the interferometer arms. With series of simulations, the variance of the un-eliminated laser phase noise obtained by our method becomes larger when the path imbalance is increasing. The simulation results show that, variance increases with the asymmetrical time delays of two interferometer arms. Therefore, this method is very helpful in obtaining further insight into the system symmetry and is also a good guidance for the adjustment of the interferometer architecture to achieve the optimized path equality. 2017 SPIE.
Number of references:7
Main heading:Phase noise
Controlled terms:Digital radio - Digital signal processing - Fiber Bragg gratings - Interferometers - Microelectronics - Optoelectronic devices - Radio receivers - Radio-over-fiber
Uncontrolled terms:Coherent detection - Coherent optical - Cost efficiency - In-phase - Laser phase noise - Radio over fibers (ROF) - RF receivers - Self-homodyne
Classification code:701.2 Magnetism: Basic Concepts and Phenomena - 716.3 Radio Systems and Equipment - 717.1 Optical Communication Systems - 741.3 Optical Devices and Systems - 941.3 Optical Instruments
DOI:10.1117/12.2264227
Funding details: Number: SKLST201407, Acronym: CAS, Sponsor: Chinese Academy of Sciences;
Funding text:This work was supported by the Open Research Fund of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences (SKLST201407).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<383>
Accession number:20173104014254
Title:Design of High Ratio Middle Infrared Continuous Zoom Optical System
Authors:Yang, Ming-Yang (1, 2); Yang, Hong-Tao (1, 2); Qu, Rui (1); Mei, Chao (1); Zhou, Zuo-Feng (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Yang, Ming-Yang(yangmingyang@opt.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:5
Issue date:May 1, 2017
Publication year:2017
Article number:0522003
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Based on the structure of compounding zoom system, a mathematical model of three component continuous zoon design was proposed. Under the guidance of the model, a compact high zoom ratio continuous zoom optical was designed with medium-wave cooling 15μm, 640×512 staring focal plane array. The system works in the range of 3.7~4.8μm and F number is 4. By using this model to distribute the optical power, the initial focal point is calculated to obtain the focal length range of 9~740mm and the zoom ratio is 80×. The whole system used only two kinds of infrared materials of silicon and germanium and eight lenses were used. The system was U-folded by using the secondary imaging and two 45° reflecting mirrors, it effectively achieved 100% cold shield efficiency and controlled the horizontal and vertical dimension. It got the moving lens zoom track and cam curve of each group, and analyzed the continuous zoom optical system from MTF, spot diagram, distortion, narcissus, environment analysis and so on. The design results prove that the zoom system has the advantages of smooth zoom track, great narcissus controlled features and excellent image and it has also been found to apply to infrared imaging system matching with advanced middle wave detector greatly. Finally, the correctness and feasibility of the mathematical model are verified exactly. 2017, Science Press. All right reserved.
Number of references:16
Main heading:Optical systems
Controlled terms:Lenses - Optical design - Thermography (imaging)
Uncontrolled terms:Continuous zooms - Environment analysis - Infrared material - Infrared technique - Large zoom ratios - Reflecting mirrors - Three component - Vertical dimensions
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.1 Photography
Numerical data indexing:Percentage 1.00e+02%, Size 1.50e-05m, Size 3.70e-06m to 4.80e-06m, Size 9.00e-03m to 7.40e-01m
DOI:10.3788/gzxb20174605.0522003
Funding details: Number: No.Y429611213, Acronym: CAAS, Sponsor: Chinese Academy of Agricultural Sciences;Number: 61201376, Acronym: -, Sponsor: -;Number: 2016-kjxx-01, Acronym: -, Sponsor: -;
Funding text:The National Nature Science Fundation of China(No.61201376), the West Honour of Chinese Academy of Science(No.Y429611213), the Special Item of Science and Technology of Shaanxi Province(No. 2016-kjxx-01).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<384>
Accession number:20180204625245
Title:When Collaboration Hugs Intelligence: Content Delivery over Ultra-Dense Networks
Authors:Zhou, Liang (1); Wu, Dan (2); Dong, Zhenjiang (3); Li, Xuelong (4)
Author affiliation:(1) Nanjing University of Posts and Telecommunications, China; (2) Army Engineering University of PLA, China; (3) ZTE Corporation, China; (4) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, China
Source title:IEEE Communications Magazine
Abbreviated source title:IEEE Commun Mag
Volume:55
Issue:12
Issue date:December 2017
Publication year:2017
Pages:91-95
Article number:8198808
Language:English
ISSN:01636804
CODEN:ICOMD9
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:With the increasing popularity of traffic-intensive video applications, UDNs are treated as one of the most promising technologies for massive video delivery. However, due to the drastic interference between neighboring cells, how to achieve high energy and spectrum efficiency is still an open and challenging problem. This work proposes a systematic solution for content delivery over UDNs by integrating collaboration with intelligence. In particular, we first design a hybrid video coding scheme that is flexible and robust to the dynamic wireless environment. Then an active and proactive video update strategy is designed by intelligently alleviating the impact of the interference. Finally, a collaborative video scheduling scheme is developed to maximize the video quality as well as the energy and spectrum efficiency. Importantly, we summarize three fundamental design guidelines, and believe that they are useful for improving the transmission capacity of UDNs. 1979-2012 IEEE.
Number of references:15
Main heading:Video signal processing
Controlled terms:Energy efficiency - Image coding
Uncontrolled terms:Content delivery - Fundamental design - Hybrid video coding - Spectrum efficiency - Transmission capacities - Ultra-dense networks - Video applications - Wireless environment
Classification code:525.2 Energy Conservation - 716.4 Television Systems and Equipment
DOI:10.1109/MCOM.2017.1700481
Funding details: Number: BK20170089, Acronym: -, Sponsor: -;Number: 61571240, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61671474, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is partly supported by the National Natural Science Foundation of China (Grants No. 61571240, 61671474), the Jiangsu Science Fund for Excellent Young Scholars (No. BK20170089), the ZTE program "The Prediction of Wireline Network Malfunction and Traffic Based on Big Data," and the Priority Academic Program Development of Jiangsu Higher Education Institutions.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<385>
Accession number:20173003984796
Title:High power, high efficiency continuous-wave 808 nm laser diode arrays
Authors:Wang, Zhenfu (1); Li, Te (1); Yang, Guowen (1); Song, Yunfei (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Yang, Guowen(yangguowen@opt.ac.cn)
Source title:Optics and Laser Technology
Abbreviated source title:Opt Laser Technol
Volume:97
Issue date:December 1, 2017
Publication year:2017
Pages:297-301
Language:English
ISSN:00303992
CODEN:OLTCAS
Document type:Journal article (JA)
Publisher:Elsevier Ltd
Abstract:The continuous-wave 100 W-class 808 nm laser diode arrays with extremely high power conversion efficiency of 68% were reported at the heatsink temperature of 25 °C. To the best of our knowledge, this was the highest power conversion efficiency at continuous-wave 106 W 808 nm laser diode array with 50% fill factor so far. An asymmetric broad waveguide epitaxial structure with very low internal optical loss of 0.5 cm？1was presented. In order to improve the efficiency, various fill factor devices were studied. The 50 W laser diode array with 30% fill factoir and 1.0 mm cavity length demonstrated power conversion efficiency of 71% at heatsink temperature of 15 °C. 2017
Number of references:13
Main heading:Efficiency
Controlled terms:Conversion efficiency - Diodes - Heat sinks - Losses
Uncontrolled terms:Continuous Wave - Epitaxial structure - Heat-sink temperatures - High power conversion - High-efficiency - Laser diode arrays - Power - Power conversion efficiencies
Classification code:525.5 Energy Conversion Issues - 616.1 Heat Exchange Equipment and Components - 911.2 Industrial Economics - 913.1 Production Engineering
Numerical data indexing:Percentage 3.00e+01%, Percentage 5.00e+01%, Percentage 6.80e+01%, Percentage 7.10e+01%
DOI:10.1016/j.optlastec.2017.07.015
Funding details: Number: 2015JQ6263, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: Y429941233, Acronym: CAAS, Sponsor: Chinese Academy of Agricultural Sciences;Number: 61504167, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under Grant No. 61504167, One Hundred Person Project of the Chinese Academy of Sciences Y429941233, the Natural Science Foundation of Shaanxi Province No. 2015JQ6263 and Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shaanxi Province.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<386>
Accession number:20181705047000
Title:Reflector control technology in space laser communication
Authors:Xie, Meilin (1, 2); Ma, Caiwen (1, 2); Yao, Cheng (1, 2); Huang, Wei (1); Lian, Xuezheng (1); Feng, Xubin (1, 2); Jing, Feng (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics of CAS, Shaanxi, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10605
Part number:1 of 1
Issue title:LIDAR Imaging Detection and Target Recognition 2017
Issue date:2017
Publication year:2017
Article number:106050Z
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510617063
Document type:Conference article (CA)
Conference name:LIDAR Imaging Detection and Target Recognition 2017
Conference date:July 23, 2017 - July 25, 2017
Conference location:Changchun, China
Conference code:133763
Sponsor:Chinese Academy of Engineering; Chinese Society for Optical Engineering (CSOE); National Natural Science Foundation of China
Publisher:SPIE
Abstract:The optical frequencies band is used as information carrier to realize laser communication between two low-orbit micro-satellites in space which equipped with inter-satellite laser communication terminals, optical switches, space routers and other payload. The laser communication terminal adopts a two-dimensional turntable with a single mirror structure. In this paper, the perturbation model of satellite platform is established in this paper. The relationship between the coupling and coordinate transformation of satellite disturbance is analyzed and the laser pointing vector is deduced. Using the tracking differentiator to speed up the circular grating angle information constitute speed loop feedback, which avoids the problem of error amplification caused by the high frequency of the conventional difference algorithm. Finally, the suppression ability of the satellite platform disturbance and the tracking accuracy of the tracking system are simulated and analyzed. The results show that the tracking accuracy of the whole system is 10μrad in the case of satellite vibration, which provides the basis for the optimization of the performance of the space-borne laser communication control system. 2017 SPIE.
Number of references:8
Main heading:Laser mirrors
Controlled terms:Communication satellites - Optical communication - Optical links - Optical radar - Optical switches - Orbits - Reflection - Satellites
Uncontrolled terms:Co-ordinate transformation - Communication control system - Coupling directions - Inter-satellite laser communications - Laser communication terminals - Reflector - Tracking differentiators - Vibration
Classification code:655.2 Satellites - 655.2.1 Communication Satellites - 717.1 Optical Communication Systems - 741.3 Optical Devices and Systems
DOI:10.1117/12.2286414
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<387>
Accession number:20164903088954
Title:Learning deep event models for crowd anomaly detection
Authors:Feng, Yachuang (1, 2); Yuan, Yuan (1); Lu, Xiaoqiang (1)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Lu, Xiaoqiang(luxq666666@gmail.com)
Source title:Neurocomputing
Abbreviated source title:Neurocomputing
Volume:219
Issue date:January 5, 2017
Publication year:2017
Pages:548-556
Language:English
ISSN:09252312
E-ISSN:18728286
CODEN:NRCGEO
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:Abnormal event detection in video surveillance is extremely important, especially for crowded scenes. In recent years, many algorithms have been proposed based on hand-crafted features. However, it still remains challenging to decide which kind of feature is suitable for a specific situation. In addition, it is hard and time-consuming to design an effective descriptor. In this paper, video events are automatically represented and modeled in unsupervised fashions. Specifically, appearance and motion features are simultaneously extracted using a PCANet from 3D gradients. In order to model event patterns, a deep Gaussian mixture model (GMM) is constructed with observed normal events. The deep GMM is a scalable deep generative model which stacks multiple GMM-layers on top of each other. As a result, the proposed method acquires competitive performance with relatively few parameters. In the testing phase, the likelihood is calculated to judge whether a video event is abnormal or not. In this paper, the proposed method is verified on two publicly available datasets and compared with state-of-the-art algorithms. Experimental results show that the deep model is effective for abnormal event detection in video surveillance. 2016 Elsevier B.V.
Number of references:40
Main heading:Deep neural networks
Controlled terms:Gaussian distribution - Image segmentation - Monitoring - Real time systems - Security systems
Uncontrolled terms:Abnormal event detections - Crowded scene - Deep GMM - PCANet - Video surveillance
Classification code:722.4 Digital Computers and Systems - 914.1 Accidents and Accident Prevention - 922.1 Probability Theory
DOI:10.1016/j.neucom.2016.09.063
Funding details: Number: LSIT201408, Acronym: -, Sponsor: -;Number: QYZDB-SSW-JSC015, Acronym: -, Sponsor: -;Number: 2013CB336500, Acronym: -, Sponsor: -;Number: KGZD-EW-T03, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61232010, Acronym: -, Sponsor: -;Number: 61472413, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is supported by the National Basic Research Program of China (Youth 973 Program) (Grant No. 2013CB336500 ), the State Key Program of National Natural Science of China (Grant No. 61232010 ), the National Natural Science Foundation of China (Grant No. 61472413 ), the Key Research Program of the Chinese Academy of Sciences (Grant No. KGZD-EW-T03 ), the Open Research Fund of the Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences (Grant No. LSIT201408 ), and the Young Top-notch Talent Program of Chinese Academy of Sciences (Grant No. QYZDB-SSW-JSC015 ).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<388>
Accession number:20171403528214
Title:Few-layered MoS
Authors:Xia, Hongwang (1); Li, Ming (2, 3); Li, Tao (1); Zhao, Shengzhi (1); Li, Guiqiu (1); Yang, Kejian (1)
Author affiliation:(1) School of Information Science and Engineering, Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan; 250100, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) School of Mechanical Engineering, Xi'an Jiao Tong University, Xi'an; 710119, China
Corresponding author:Li, Tao(litao@sdu.edu.cn)
Source title:Applied Optics
Abbreviated source title:Appl. Opt.
Volume:56
Issue:10
Issue date:April 1, 2017
Publication year:2017
Pages:2766-2770
Language:English
ISSN:1559128X
E-ISSN:21553165
CODEN:APOPAI
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:The passively Q-switched Er: YAG laser at 1.6 μm was achieved with a YAG-based MoS
Number of references:29
Main heading:Saturable absorbers
Controlled terms:Layered semiconductors - Molybdenum compounds - Optical pumping - Pulse repetition rate - Q switching - Semiconductor quantum wells - Yttrium aluminum garnet
Uncontrolled terms:Absorbed pump power - Average output power - Optical conversion efficiency - Passively Q-switched - Pulse durations - Pulse energies - Repetition rate - Saturable absorption
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 744.1 Lasers, General - 744.8 Laser Beam Interactions
Numerical data indexing:Power 8.09e+00W, Size 1.60e-06m, Time 1.14e-06s, Energy 2.31e-05J, Frequency 4.66e+04Hz, Percentage 4.07e+01%, Power 1.08e+00W, Power 2.03e+01W
DOI:10.1364/AO.56.002766
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<389>
Accession number:20173003967983
Title:Spatial Mode Distributions of Ince-Gaussian Beams Modulated by Phase Difference Factor
Authors:Ma, Haixiang (1); Li, Xinzhong (1, 2); Li, Hehe (1); Tang, Miaomiao (1); Wang, Jingge (1); Tang, Jie (2); Wang, Yishan (2); Nie, Zhaogang (3)
Author affiliation:(1) School of Physics and Engineering, Henan University of Science and Technology, Luoyang; Henan; 471023, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (3) School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou; Guangdong; 510006, China
Corresponding author:Li, Xinzhong(xzli@haust.edu.cn)
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:37
Issue:6
Issue date:June 10, 2017
Publication year:2017
Article number:0626002
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:A novel type of Ince-Gaussian (IG) beam, named as PIG (Ince-Gaussian beam with phase difference) beam, based on the initial phase difference factor modulation between even mode and odd mode of IG beam is proposed. The PIG beam is generated by the linear superposition of the even mode and the odd mode of traditional IG beam after the even mode being multiplied an exponential phase factor with an initial phase difference of φ. The modulation properties of the initial phase difference factor on spatial mode of the PIG beam are mainly studied when other parameters are the same. Numerical simulations and experimental results show that the PIG beam changes from positive vortex state to negative vortex state when φ continuously increases from 0 to π. The vortex state is vanished when φ=π/2. As φ is equal to integer multiple of π, the switch from the positive vortex state to the negative vortex state is realized. As φ is equal to half-integer multiple of π, light traps of the PIG beams can be accurately controlled to move on the oval orbit. The PIG beam will provides an additional degree of freedom for micro-particle operation and beam micro-machining. 2017, Chinese Lasers Press. All right reserved.
Number of references:26
Main heading:Gaussian beams
Controlled terms:Degrees of freedom (mechanics) - Gaussian distribution - Mammals - Micromachining - Modulation - Physical optics - Vortex flow
Uncontrolled terms:Free control - Ince-Gaussian beams - Ince-Gaussian mode - Linear superpositions - Micro particles - Modulation properties - Optical vortices - Spatial mode distribution
Classification code:604.2 Machining Operations - 631.1 Fluid Flow, General - 711 Electromagnetic Waves - 741.1 Light/Optics - 922.1 Probability Theory - 931.1 Mechanics
DOI:10.3788/AOS201737.0626002
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<390>
Accession number:20171703607656
Title:Design and analysis of micro stress flexible support structure of reflector in all-day star tracker
Authors:Liu, Yang (1); Chen, Su (1); Wang, Lingguang (1); Geng, Bo (1); Wang, Hu (1); Liu, Jie (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102562I
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:To reduce the surface deformation of a star tracker reflector in a complex and execrable environment, a micro stress flexible support structure was designed according to the circular optical reflector subassembly. By defining the thickness, width and radius as design variables, the flexible hinge in an circular reflector subassembly was optimized. Then, the surface figure precision, structural strength and dynamic stiffness of the reflector subassembly in the thermal-structural coupling state were analyzed with the finite element method. Simulation results show that the natural frequency of the reflector is enough, which has a sufficiently high dynamic stiffness. Both surface precision RMS of the reflector (8.34nm, 9.26nm) have reached the index requirements of the optical system(λ/10, λ=632.8nm) under gravity and uniform temperature change from -20°C to 65°C. The results show that the design for the micro stress flexible support structure is reasonable and feasible, and achieves the design goal. 2017 SPIE.
Number of references:14
Main heading:Finite element method
Controlled terms:Ground supports - Optical systems - Photonics - Reflection - Star trackers - Stars - Stiffness
Uncontrolled terms:All-day - Circular reflectors - Design and analysis - Flexible supports - Reflector - Structural strength - Surface figure precision - Thermal-structural coupling
Classification code:657.2 Extraterrestrial Physics and Stellar Phenomena - 741.3 Optical Devices and Systems - 921.6 Numerical Methods - 951 Materials Science
Numerical data indexing:Size 8.34e-09m, Size 9.26e-09m, Temperature 2.53e+02K to 3.38e+02K
DOI:10.1117/12.2257424
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<391>
Accession number:20173104011338
Title:Alignment of focus-adjustable off-axis reflective optical system
Authors:Zhang, Xue-Min (1); Song, Xing (1, 2); Hou, Xiao-Hua (1); Li, Hua (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Li, Hua(lihua@opt.ac.cn)
Source title:Guangxue Jingmi Gongcheng/Optics and Precision Engineering
Abbreviated source title:Guangxue Jingmi Gongcheng
Volume:25
Issue:6
Issue date:June 1, 2017
Publication year:2017
Pages:1458-1463
Language:Chinese
ISSN:1004924X
CODEN:GJGOF4
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences
Abstract:A space interactive measurement and datum transmission system with high accuracy was proposed, aiming at precise alignment problem of off-axis reflective optical system. Therefore the highly accurate angle location of focusing angle and systemic optical axis was realized. The diameter of the system was 450 mm, and focus-adjustable range was from 0.5 km to infinity. After accurate positioning of focusing angles, only wave aberration of off-axis three-mirror optical system in infinite position needed to be adjusted to satisfy requirements, and the wave aberrations of all focus position in the system could be guaranteed to accord with design requirements, thus improving adjustment efficiency greatly. The experimental results show that the wave aberrations of the system in infinite position, 1.5 km, 2.5 km and 0.5 km are 0.1λ, 0.11λ, 0.5km and 0.2λ respectively, which are all better than design requirements. 2017, Science Press. All right reserved.
Number of references:21
Main heading:Aberrations
Controlled terms:Alignment - Data communication systems - Optical systems
Uncontrolled terms:Adjustable ranges - Adjustment efficiency - Off-axis - Off-axis three mirror optical system - Optical alignments - Precise alignments - Reflective optical system - Transmission systems
Classification code:601.1 Mechanical Devices - 741.3 Optical Devices and Systems
Numerical data indexing:Size 1.50e+03m, Size 2.50e+03m, Size 4.50e-01m, Size 5.00e+02m
DOI:10.3788/OPE.20172506.1458
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<392>
Accession number:20172803930754
Title:Efficient wavelength-tunable gain-switching and gain-switched mode-locking operation of a heavily Er3+-doped ZBLAN mid-infrared fiber laser (Open Access)
Authors:Shen, Yanlong (1, 2, 3, 4, 5); Wang, Yishan (1, 5); Luan, Kunpeng (3); Chen, Hongwei (3); Tao, Mengmeng (3); Si, Jinhai (2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronics and Information Engineering, Xi'An Jiaotong University, Xi'an; 710049, China; (3) State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology, Xi'an; 710024, China; (4) University of Chinese Academy of Sciences, Beijing; 100049, China; (5) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China
Corresponding author:Shen, Yanlong(shenyl@stu.xjtu.edu.cn)
Source title:IEEE Photonics Journal
Abbreviated source title:IEEE Photon. J.
Volume:9
Issue:4
Issue date:August 2017
Publication year:2017
Article number:1504510
Language:English
ISSN:19430655
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We report on an efficient wavelength-tunable gain-switched and gain-switched mode-locked Er3+-doped double-clad fiber laser with a linear cavity. Stable gain-switching and gain-switched mode-locking were achieved with slope efficiencies of 28.6% and 34.5% with respect to launched pump power, respectively. The gain-switched laser pulses were generated with a maximum average output power of around 110 mW, pulse width of 661.2 ns, and calculated peak power of ～16.5 W at a repetition rate of 10 kHz. At the same repetition, the gain-switched mode-locked laser pulses were generated with a maximum average output power of around 514 mW, subpulse repetition rate of ～30.7 MHz, and peak power of higher than 154 W at a repetition rate of 10 kHz when the wavelength was tuned to 2.78 μm. This is, to the best of our knowledge, the first demonstration of a gain-switched self-started mode-locked fiber laser near 3 μm. 2017 IEEE.
Number of references:30
Main heading:Mode-locked fiber lasers
Controlled terms:Fiber lasers - Fibers - Infrared devices - Infrared lasers - Laser mode locking - Lasers - Locks (fasteners) - Pulse repetition rate - Pulsed lasers
Uncontrolled terms:Average output power - Double clad fiber laser - Infrared and far-infrared lasers - Launched pump power - pulsed - Slope efficiencies - tunable - Wavelength tunable
Classification code:744.1 Lasers, General - 744.4 Solid State Lasers
Numerical data indexing:Frequency 1.00e+04Hz, Percentage 2.86e+01%, Percentage 3.45e+01%, Power 1.10e-01W, Power 1.54e+02W, Power 5.14e-01W, Time 6.61e-07s
DOI:10.1109/JPHOT.2017.2721998
Funding details: Number: -, Acronym: -, Sponsor: CAS-SAFEA International Partnership Program for Creative Research Teams;Number: SKLLIM1503, Acronym: -, Sponsor: -;Number: 11573058, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61690222, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the CAS/SAFEA International Partnership Program for Creative Research Teams and National Natural Science Foundation of China under Grants 11573058 and 61690222, and in part by the fund of the State Key Laboratory of Laser Interaction with Matter under Grant SKLLIM1503.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<393>
Accession number:20171703607534
Title:A novel design of subminiature star sensor's imaging system based on TMS320DM3730
Authors:Liu, Meiying (1, 2); Wang, Hu (1); Wen, Desheng (1); Yang, Shaodong (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, No. 17 Xinxi Road, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing; 100049, China
Corresponding author:Liu, Meiying(liumeiying@opt.ac.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:1025635
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:Development of the next generation star sensor is tending to miniaturization, low cost and low power consumption, so the imaging system based on FPGA in the past could not meet its developing requirements. A novel design of digital imaging system is discussed in this paper. Combined with the MT9P031 CMOS image sensor's timing sequence and working mode, the sensor driving circuit and image data memory circuit were implemented with the main control unit TMS320DM3730. In order to make the hardware system has the advantage of small size and light weight, the hardware adopted miniaturization design. The software simulation and experimental results demonstrated that the designed imaging system was reasonable, the function of tunable integration time and selectable window readout modes were realized. The communication with computer was exact. The system has the advantage of the powerful image processing,small-size, compact, stable, reliable and low power consumption. The whole system volume is 40 mm ？40 mm ？40mm,the system weight is 105g, the system power consumption is lower than 1w. This design provided a feasible solution for the realization of the subminiature star sensor's imaging system. 2017 SPIE.
Number of references:8
Main heading:Imaging systems
Controlled terms:CMOS integrated circuits - Computer hardware - Computer software - Digital cameras - Electric power utilization - Hardware - Image processing - Image sensors - Integrated circuit design - Miniature instruments - Optical data processing - Photonics - Stars
Uncontrolled terms:CMOS image sensor - Digital imaging system - Driving circuits - Feasible solution - Low-power consumption - Miniaturization - Software simulation - Star sensors
Classification code:605 Small Tools and Hardware - 657.2 Extraterrestrial Physics and Stellar Phenomena - 706.1 Electric Power Systems - 714.2 Semiconductor Devices and Integrated Circuits - 722 Computer Systems and Equipment - 723 Computer Software, Data Handling and Applications - 723.2 Data Processing and Image Processing - 741.1 Light/Optics - 742.2 Photographic Equipment - 746 Imaging Techniques
Numerical data indexing:Mass 1.05e-01kg
DOI:10.1117/12.2257791
Funding details: Number: 61107008, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61105017, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work has been supported by: (1) National Natural Science Foundation of China under the contract No.61107008 and No.61105017.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<394>
Accession number:20174904499324
Title:Locality Adaptive Discriminant Analysis for Spectral-Spatial Classification of Hyperspectral Images
Authors:Wang, Qi (1, 2, 3); Meng, Zhaotie (1, 3); Li, Xuelong (4, 5)
Author affiliation:(1) School of Computer Science, Northwestern Polytechnical University, Xi'an; 710072, China; (2) Unmanned System Research Institute, Northwestern Polytechnical University, Xi'an; 710072, China; (3) Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an; 710072, China; (4) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (5) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Wang, Qi(crabwq@gmail.com)
Source title:IEEE Geoscience and Remote Sensing Letters
Abbreviated source title:IEEE Geosci. Remote Sens. Lett.
Volume:14
Issue:11
Issue date:November 2017
Publication year:2017
Pages:2077-2081
Article number:8052584
Language:English
ISSN:1545598X
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Linear discriminant analysis (LDA) is a popular technique for supervised dimensionality reduction, but with less concern about a local data structure. This makes LDA inapplicable to many real-world situations, such as hyperspectral image (HSI) classification. In this letter, we propose a novel dimensionality reduction algorithm, locality adaptive discriminant analysis (LADA) for HSI classification. The proposed algorithm aims to learn a representative subspace of data, and focuses on the data points with close relationship in spectral and spatial domains. An intuitive motivation is that data points of the same class have similar spectral feature and the data points among spatial neighborhood are usually associated with the same class. Compared with traditional LDA and its variants, LADA is able to adaptively exploit the local manifold structure of data. Experiments carried out on several real hyperspectral data sets demonstrate the effectiveness of the proposed method. 2004-2012 IEEE.
Number of references:19
Main heading:Image classification
Controlled terms:Classification (of information) - Discriminant analysis - Image analysis - Image recognition - Independent component analysis - Spectroscopy
Uncontrolled terms:Adaptive discriminant analysis - Dimensionality reduction - Dimensionality reduction algorithms - Linear discriminant analyses (LDA) - Local manifold structure - Spatial neighborhoods - spectral-spatial - Spectral-spatial classification
Classification code:716.1 Information Theory and Signal Processing - 922 Statistical Methods
DOI:10.1109/LGRS.2017.2751559
Funding details: Number: -, Acronym: NPU, Sponsor: Northwestern Polytechnical University;Number: 2017YFB1002200, Acronym: -, Sponsor: -;Number: 3102017AX010, Acronym: -, Sponsor: -;Number: QYZDY-SSW-JSC044, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61379094, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61773316, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61761130079, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Manuscript received August 24, 2017; accepted September 9, 2017. Date of publication September 28, 2017; date of current version October 25, 2017. This work was supported in part by the National Key Research and Development Program of China under Grant 2017YFB1002200, in part by the National Natural Science Foundation of China under Grant 61773316, Grant 61379094, and Grant 61761130079, in part by the Key Research Program of Frontier Sciences, Chinese Academy of Sciences under Grant QYZDY-SSW-JSC044, in part by Fundamental Research Funds for Central Universities under Grant 3102017AX010, and in part by the Open Research Fund of Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences. (Corresponding author: Qi Wang.) Q. Wang is with the School of Computer Science, also with the Unmanned System Research Institute, and also with the Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi’an 710072, China (e-mail: crabwq@gmail.com).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<395>
Accession number:20180304654861
Title:Variable curvature mirror having variable thickness: Design and fabrication
Authors:Zhao, Hui (1); Xie, Xiaopeng (2); Xu, Liang (1); Ding, Jiaoteng (1); Shen, Le (1); Gong, Jie (3)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China; (2) Graduate School of University of Chinese Academy of Science, Beijing; 100047, China; (3) Xi'an BoYa Precision Optics Co.Ltd Company, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10463
Part number:1 of 1
Issue title:AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Issue date:2017
Publication year:2017
Article number:104631D
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614079
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133232
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Variable curvature mirror (VCM) can change its curvature radius dynamically and is usually used to correct the defocus and spherical aberration caused by thermal lens effect to improve the output beam quality of high power solid-state laser. Recently, the probable application of VCM in realizing non-moving element optical zoom imaging in visible band has been paid much attention. The basic requirement for VCM lies in that it should provide a large enough saggitus variation and still maintains a high enough surface figure at the same time. Therefore in this manuscript, by combing the pressurization based actuation with a variable thickness mirror design, the purpose of obtaining large saggitus variation and maintaining quite good surface figure accuracy at the same time could be achieved. A prototype zoom mirror with diameter of 120mm and central thickness of 8mm is designed, fabricated and tested. Experimental results demonstrate that the zoom mirror having an initial surface figure accuracy superior to 1/80λ could provide bigger than 36um saggitus variation and after finishing the curvature variation its surface figure accuracy could still be superior to 1/40λ with the spherical aberration removed, which proves that the effectiveness of the theoretical design. 2017 SPIE.
Number of references:20
Main heading:Aberrations
Controlled terms:Aspherics - Earth (planet) - Fabrication - Laser mirrors - Pressurization - Solid state lasers - Thickness control
Uncontrolled terms:Curvature variation - High power solid-state lasers - Spherical aberrations - Surface figure accuracies - Theoretical design - Thermal lens effects - Variable curvature mirror - Variable thickness
Classification code:731.3 Specific Variables Control - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 744.4 Solid State Lasers - 744.7 Laser Components
Numerical data indexing:Size 1.20e-01m, Size 8.00e-03m
DOI:10.1117/12.2285184
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<396>
Accession number:20180404670995
Title:Laser spot center location algorithm based on sub-pixel interpolation
Authors:Liu, Tong (1, 2); Tian, Yan (1); Wu, Jingyao (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Liu, Tong(liutong2015@opt.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:1046235
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Precise location of laser spot in laser precision measurement is always an important research direction. Laser has the characteristics of good direction and small divergence, so it is widely used in aerospace, weapon systems and optical measuring and testing instruments. The accuracy of the laser spot center location can directly determine the precision of measurement. Aiming at positioning the center of laser spot, in the foundation of researching the limitation of the practical application of the common laser spot center location algorithm, this paper proposes a method of laser spot center localization based on sub-pixel interpolation, which can effectively improve the signal noise ratio (SNR) of laser spot image, reduce the influence of the background noise and thermal noise. The algorithm firstly uses the threshold value decision to exclude the interference of the light of the image, and then use the improved sub-pixel interpolation algorithm for image edge detection to obtain the edge image, and finally using the circle fitting method to obtain the positioning center. Through the experiment of processing of laser spot image, the results show that improved algorithm proposed in this paper has higher positioning accuracy than the traditional centroid, and satisfies the need of laser precision measurement in reliability, positioning accuracy and noise resistance and other aspects, at the same time, the computational complexity of this algorithm is low, can greatly save the system resources, and it can be used for the processing of the video images in the hardware and software. 2017 SPIE.
Number of references:10
Main heading:Edge detection
Controlled terms:Computational complexity - Image enhancement - Image processing - Instrument testing - Interpolation - Location - Optical data processing - Pixels - Signal to noise ratio - Software reliability - Thermal noise
Uncontrolled terms:Gray-center method - Hardware and software - Image edge detection - Laser spots - Positioning accuracy - Precision measurement - Sub-pixel locations - Subpixel interpolation
Classification code:716.1 Information Theory and Signal Processing - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 723.2 Data Processing and Image Processing - 921.6 Numerical Methods
DOI:10.1117/12.2285027
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<397>
Accession number:20174904504268
Title:Sheared-beam imaging of object with depth information
Authors:Lan, Fu-Yang (1, 2); Luo, Xiu-Juan (1); Chen, Ming-Lai (1); Zhang, Yu (1); Liu, Hui (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Lan, Fu-Yang(lanfuyang@opt.cn)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:20
Issue date:October 20, 2017
Publication year:2017
Article number:204202
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:Sheared-beam imaging technique is a non-conventional imaging method which can be used to image remote objects through atmospheric turbulence without needing any adaptive optics. In this imaging technique, the target is coherently illuminated by three laser beams which are laterally sheared at the transmitter plane and arranged into an L shape. In addition, each beam is modulated by a slight frequency shift. The speckle intensity signals scattered from the target are received by a detector array, and then the image of target can be reconstructed by computer algorithm. By far, most of studies in this field have focused on two-dimensional imaging. In real conditions, however, the surface of targets we are concerned about reveals that different depths introduce various phase delays in the scattering signal from target. This delay causes the phase-shift errors to appear between the ideal target Fourier spectrum and the Fourier spectrum received by detector array. Finally, this would result in poor image quality and low resolution. In this study, a three-dimensional target imaging model is established based on the two-dimensional target imaging model. The influence of modulated beat frequency between sheared beam and reference beam is studied on the objects with depth information, and the result shows that large beat frequency may have an adverse effect on reconstructed images. The simulation we have developed for this three-dimensional imaging model uses three targets with different shapes. Each target is divided into several sub-blocks, and we set different depth values (within 10 m) for these blocks. Then beat frequencies are increased from 5 Hz to about 1 MHz, respectively. At each pair of frequencies, the reconstructed image is recorded. S？rehl ratio is used as the measure of the imaging quality. Computer simulation results show that the S？rehl ratio of reconstructed images descends with the increase of beat frequency, which is fully consistent with the theory of three-dimensional target imaging proposed before. Meanwhile, we find that the depth distribution of target also has an effect on imaging quality. As for actual space targets, the maximum depth is usually not more than 10 m. Compared with the influence caused by beat frequencies, the effect produced by depth distribution is negligible. Therefore when a space target is imaged, beat frequencies play the major role in reconstructing high-quality image. The results presented in this paper indicate that in order to achieve better imaging quality in the practical application, it is necessary to select the smallest beat frequency according to the detector performance and keep the candidate frequencies away from the low-frequency noise of the detector. 2017 Chinese Physical Society.
Number of references:22
Main heading:Image reconstruction
Controlled terms:Adaptive optics - Atmospheric turbulence - Image quality - Laser beams - Speckle
Uncontrolled terms:Beam imaging - Conventional imaging - Detector performance - Phase delay - Speckle imaging - Three dimensional imaging - Two-dimensional imaging - Two-dimensional targets
Classification code:443.1 Atmospheric Properties - 741.1 Light/Optics - 744.8 Laser Beam Interactions
Numerical data indexing:Frequency 1.00e+06Hz, Size 1.00e+01m
DOI:10.7498/aps.66.204202
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<398>
Accession number:20164302942143
Title:Facile synthesis of porous nitrogen-doped holey graphene as an efficient metal-free catalyst for the oxygen reduction reaction
Authors:Qin, Li (1, 2, 5); Ding, Ruimin (1, 2); Wang, Huixiang (1, 2, 5); Wu, Jianghong (1, 2, 5); Wang, Conghui (1, 2, 5); Zhang, Chenghua (1, 3); Xu, Yao (4); Wang, Liancheng (1, 2); Lv, Baoliang (1, 2)
Author affiliation:(1) State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan; 030001, China; (2) Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan; 030001, China; (3) Synfuels China Technology Co. Ltd, Beijing; 101407, China; (4) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China; (5) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Wang, Liancheng(wanglc@sxicc.ac.cn)
Source title:Nano Research
Abbreviated source title:Nano. Res.
Volume:10
Issue:1
Issue date:January 1, 2017
Publication year:2017
Pages:305-319
Language:English
ISSN:19980124
E-ISSN:19980000
Document type:Journal article (JA)
Publisher:Tsinghua University Press
Abstract:Nitrogen-doped graphene is a promising candidate for the replacement of noble metal-based electrocatalysts for oxygen reduction reactions (ORRs). The addition of pores and holes into nitrogen-doped graphene enhances the ORR activity by introducing abundant exposed edges, accelerating mass transfer, and impeding aggregation of the graphene sheets. Herein, we present a straightforward but effective strategy for generating porous holey nitrogen-doped graphene (PHNG) via the pyrolysis of urea and magnesium acetate tetrahydrate. Due to the combined effects of the in situ generated gases and MgO nanoparticles, the synthesized PHNGs featured not only numerous out-of-plane pores among the crumpled graphene sheets, but also interpenetrated nanoscale (5–15 nm) holes in the assembled graphene. Moreover, the nitrogen doping configurations of PHNG were optimized by post-thermal treatments at different temperatures. It was found that the overall content of pyridinic and quaternary nitrogen positively correlates with the ORR activity; in particular, pyridinic nitrogen generates the most desirable characteristics for the ORR. This work reveals new routes for the synthesis of PHNG-based materials and elucidates the contributions of various nitrogen species to ORRs. [Figure not available: see fulltext.] 2017, Tsinghua University Press and Springer-Verlag Berlin Heidelberg.
Number of references:45
Main heading:Doping (additives)
Controlled terms:Electrocatalysts - Electrolytic reduction - Graphene - Heat treatment - Magnesia - Mass transfer - Nitrogen - Oxygen - Precious metals - Synthesis (chemical) - Urea
Uncontrolled terms:Metal-free catalysts - N-doped - Nitrogen doped graphene - Oxygen reduction reaction - Post thermal treatment - Pyridinic nitrogen - Quaternary nitrogens - Situ templates
Classification code:537.1 Heat Treatment Processes - 547.1 Precious Metals - 641.3 Mass Transfer - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally
DOI:10.1007/s12274-016-1293-5
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<399>
Accession number:20172203711460
Title:Electrostatic field assisted micro imprint lithography technology
Authors:Liu, Min-Zhe (1, 2); Wang, Tai-Sheng (1); Li, He-Fu (1); Liu, Zhen-Yu (1); Chen, Zuo-Long (3); Yu, Wei-Xing (4)
Author affiliation:(1) Changchun Institute of Optics, Fine Mechanics & Physics, Chinese Academy of Sciences, Changchun; 130033, China; (2) University of the Chinese Academy of Science, Beijing; 100049, China; (3) People's Liberation Army of China, 63861 Troops, Baicheng; 137001, China; (4) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Yu, Wei-Xing(yuwx@opt.ac.cn)
Source title:Guangxue Jingmi Gongcheng/Optics and Precision Engineering
Abbreviated source title:Guangxue Jingmi Gongcheng
Volume:25
Issue:3
Issue date:March 1, 2017
Publication year:2017
Pages:663-671
Language:Chinese
ISSN:1004924X
CODEN:GJGOF4
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences
Abstract:In this paper, a new type of micro imprint lithography assisted by electrostatic field was introduced, and an in-depth theoretical research was conducted on its technological process. First, numerical simulation software (COMSOLTMMultiphysics) was adopted to establish a transient simulation model for electrostatic filed assisted imprint lithography and discussed the evolution process of micro structure in different time domains. Then a detailed analysis was conducted on the qualitative relationship between the micro structure formation and simulation experiment parameters, during which it was found that properly reducing the polar plate spacing, template bulging period and increasing the bulging height, initial polymer film thickness and voltage were beneficial to formation of the micro-nano structure. Finally, a spherical cap micro structure with 31 μm hollow structure was obtained through optimization of the simulation experiment parameters. Compared with traditional imprint method, the electrostatic field assisted micro imprint, which is characterized by simple process and lower cost, can be widely applied to the micro electronic and mechanical system, photonics, genetics and tissue system etc. 2017, Science Press. All right reserved.
Number of references:22
Main heading:Nanoimprint lithography
Controlled terms:Computer software - Electric fields - Electrostatics - Lithography - Microstructure - Nanostructures - Polymer films - Semiconducting films - Time domain analysis - Two phase flow
Uncontrolled terms:Experiment parameters - Imprint - Imprint lithography - Micro-nano structures - Numerical simulation software - Technological process - Theoretical research - Transient simulation models
Classification code:631.1 Fluid Flow, General - 701.1 Electricity: Basic Concepts and Phenomena - 712.1 Semiconducting Materials - 723 Computer Software, Data Handling and Applications - 761 Nanotechnology - 815.1 Polymeric Materials - 921 Mathematics - 933 Solid State Physics - 951 Materials Science
Numerical data indexing:Size 3.10e-05m
DOI:10.3788/OPE.20172503.0663
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<400>
Accession number:20165203192473
Title:A novel generation scheme of ultra-short pulse trains with multiple wavelengths
Authors:Su, Yulong (1, 2, 3); Hu, Hui (1, 3); Feng, Huan (1); Li, Lu (1, 2, 3); Han, Biao (1, 3); Wen, Yu (4); Wang, Yishan (1); Si, Jinhai (2); Xie, Xiaoping (1); Wang, Weiqiang (1, 3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an; 710119, China; (2) Key Laboratory for Physical Electronics and Devices of the Ministry of Education and Shaanxi Key Lab of Information Photonic Technique, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; (3) University of Chinese Academy of Sciences (UCAS), Beijing; 100049, China; (4) Xi'an Communication Institute, Xi'an; 710119, China
Corresponding author:Hu, Hui(johnhuihui@opt.ac.cn)
Source title:Optics Communications
Abbreviated source title:Opt Commun
Volume:389
Issue date:April 15, 2017
Publication year:2017
Pages:176-180
Language:English
ISSN:00304018
CODEN:OPCOB8
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:We demonstrate a novel scheme based on active mode locking combined with four-wave mixing (FWM) to generate ultra-short pulse trains at high repetition rate with multiple wavelengths for applications in various fields. The obtained six wavelengths display high uniformity both in temporal and frequency domain. Pulses at each wavelength are mode locked with pulse duration of ~44.37 ps, signal-to-noise ratio (SNR) of ~47.89 dB, root-mean-square (RMS) timing jitter of ~552.7 fs, and the time-bandwidth product of ~0.68 at repetition rate of 1 GHz. The experimental results show this scheme has promising usage in optical communications, optical networks, and fiber sensing. 2016 Elsevier B.V.
Number of references:32
Main heading:Four wave mixing
Controlled terms:Frequency domain analysis - Locks (fasteners) - Optical fiber communication - Pulse repetition rate - Signal to noise ratio - Timing jitter - Ultrashort pulses
Uncontrolled terms:Active mode locking - Four Wave Mixing (FWM) - Frequency domains - High repetition rate - Low timing jitter - Multiple wavelengths - Root Mean Square - Time bandwidth product
Classification code:716.1 Information Theory and Signal Processing - 717.1 Optical Communication Systems - 744.1 Lasers, General - 921.3 Mathematical Transformations
Numerical data indexing:Frequency 1.00e+09Hz
DOI:10.1016/j.optcom.2016.12.044
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<401>
Accession number:20181104895468
Title:A deep learning approach to real-Time recovery for compressive hyper spectral imaging
Authors:Li, Ruimin (1, 2); Zheng, Yang (1, 2); Wen, Desheng (1); Song, Zongxi (1)
Author affiliation:(1) Xian Institute of Optics and Precision Mechanics Chinese Academy of Sciences, Xin, Shaanxi Province, China; (2) University of Chinese Academy of Sciences, Beijing, China
Source title:Proceedings of 2017 IEEE 3rd Information Technology and Mechatronics Engineering Conference, ITOEC 2017
Abbreviated source title:Proc. IEEE Inf. Technol. Mechatronics Eng. Conf., ITOEC
Volume:2017-January
Part number:1 of 1
Issue title:Proceedings of 2017 IEEE 3rd Information Technology and Mechatronics Engineering Conference, ITOEC 2017
Issue date:November 27, 2017
Publication year:2017
Pages:1030-1034
Language:English
ISBN-13:9781509053629
Document type:Conference article (CA)
Conference name:3rd IEEE Information Technology and Mechatronics Engineering Conference, ITOEC 2017
Conference date:October 3, 2017 - October 5, 2017
Conference location:Chongqing, China
Conference code:133411
Sponsor:Chongqing Geeks Education Technology Co., Ltd; Chongqing Global Union Academy of Science and Technology; Global Union Academy of Science and Technology; IEEE Beijing Section
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Compressive coded hyper spectral (HS) imaging actualizes compressed sampling and snapshot acquisition of HS data, whereas current recovery algorithms take too long time to make real-Time HS imaging satisfactory. This paper proposes a deep learning approach for compressive HS imaging to shorten the recovery time. A fully-connected network is designed to train a block-based non-linear reconstruction operator. There is a mergence after obtaining the recovery 3D blocks, followed with a block edge mean filter. The contribution of this approach is that it uses deep neural network to do the reconstruction of the HS data for the first time and it has low-complexity and needs less memory because of operating on local patches. The proposed method was validated on a public available HS dataset and the experimental results show that this approach is superior to the state-of-The-Art in the recovery accuracy, and dramatically improves the reconstruction speed by 400 ~ 760 times. 2017 IEEE.
Number of references:16
Main heading:Image processing
Controlled terms:Computer system recovery - Deep learning - Deep neural networks - Recovery - Spectroscopy
Uncontrolled terms:Compressed samplings - Fully connected networks - Learning approach - Non linear reconstruction - Real time - Real-time recoveries - Reconstruction speed - Recovery algorithms
DOI:10.1109/ITOEC.2017.8122510
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<402>
Accession number:20171303498215
Title:Modeling and research of a space-based spacecraft infrared detection system
Authors:Li, Wenhao (1, 2); Liu, Zhaohui (1); Mu, You (1); Yang, Rui (1, 2); Zhang, Xing (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100039, China
Corresponding author:Li, Wenhao(liwenhao@opt.cn)
Source title:Applied Optics
Abbreviated source title:Appl. Opt.
Volume:56
Issue:9
Issue date:March 20, 2017
Publication year:2017
Pages:2428-2433
Language:English
ISSN:1559128X
E-ISSN:21553165
CODEN:APOPAI
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:When a spacecraft is in orbit, it is almost impossible to check its working condition. Almost all payload would generate waste heat when working, which is usually ejected by a radiator. By observing the radiator, we can catch a glimpse of a spacecraft's inner information. A thorough model of a space-based infrared detection system is analyzed, taking the radiator into account, which, to the best of our knowledge, has seldom been considered. The calculation result shows that infrared radiation reflected by spacecraft is weak compared with the spacecraft's self-radiation in 8-12 μm, and the contrast ratio between the radiator and surrounding area could be the criterion for judging the working condition of a spacecraft. The limit of detection distance is also increased due the higher temperature of the radiator. 2017 Optical Society of America.
Number of references:20
Main heading:Orbits
Controlled terms:Infrared detectors - Infrared radiation - Radiators - Spacecraft - Waste heat
Uncontrolled terms:Calculation results - Contrast ratio - In-orbit - Infrared detection - Limit of detection - Self-radiation - Space-based - Space-based infrared
Classification code:525.4 Energy Losses (industrial and residential) - 616.1 Heat Exchange Equipment and Components - 655.1 Spacecraft, General - 741.1 Light/Optics - 944.7 Radiation Measuring Instruments
Numerical data indexing:Size 8.00e-06m to 1.20e-05m
DOI:10.1364/AO.56.002428
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<403>
Accession number:20181304937451
Title:Dispersion management of a compact all fiber Yb doped NPE passive mode-locked oscillator by a tapered fiber
Authors:Yang, Peilong (1, 2); Hu, Zhongqi (1, 2); Teng, Hao (2); Lv, Zhiguo (3); Wei, Zhiyi (2)
Author affiliation:(1) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710071, China; (2) Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing; 100190, China; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Teng, Hao(hteng@iphy.ac.cn)
Source title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Abbreviated source title:Conf. Lasers. Electr.-Opt., Proc.
Volume:2017-January
Part number:1 of 1
Issue title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Issue date:October 25, 2017
Publication year:2017
Pages:1-2
Language:English
ISBN-13:9781943580279
Document type:Conference article (CA)
Conference name:2017 Conference on Lasers and Electro-Optics, CLEO 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:131854
Sponsor:AdValue Photonics; American Elements - The Materials Science Company; Coherent; et al.; KMLabs - Leading in Ultrafast; MKS
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We explored dispersion management of a NPE mode-locked Yb-doped all fiber oscillator by a tapered fiber, the compressed pulse duration of 116fs, power of 36mW , spectrum is widened to near 20nm. 2017 IEEE.
Number of references:4
Main heading:Fibers
Controlled terms:Locks (fasteners)
Uncontrolled terms:All fiber - Compressed pulse - Dispersion management - Mode-locked - Passive mode-locked - Tapered fiber - Yb-doped
Classification code:547.2 Rare Earth Metals
Numerical data indexing:Power 3.60e-02W, Size 2.00e-08m, Time 1.16e-13s
DOI:10.1364/CLEO_SI.2017.SM4L.8
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<404>
Accession number:20173604115683
Title:Refined-graph regularization-based Nonnegative matrix factorization
Authors:Li, Xuelong (1); Cui, Guosheng (1, 2); Dong, Yongsheng (1, 3)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (2) University of Chinese, Academy of Sciences, 19A Yuquanlu, Beijing; 100049, China; (3) School of Information Engineering, Henan University of Science and Technology, Luoyang, Henan; 471023, China
Corresponding author:Dong, Yongsheng(dongyongsheng98@163.com)
Source title:ACM Transactions on Intelligent Systems and Technology
Abbreviated source title:ACM Trans. Intell. Syst. Technolog.
Volume:9
Issue:1
Issue date:August 2017
Publication year:2017
Article number:1
Language:English
ISSN:21576904
E-ISSN:21576912
Document type:Journal article (JA)
Publisher:Association for Computing Machinery
Abstract:Nonnegative matrix factorization (NMF) is one of the most popular data representation methods in the field of computer vision and pattern recognition. High-dimension data are usually assumed to be sampled from the submanifold embedded in the original high-dimension space. To preserve the locality geometric structure of the data, k-nearest neighbor (k-NN) graph is often constructed to encode the near-neighbor layout structure. However, k-NN graph is based on Euclidean distance, which is sensitive to noise and outliers. In this article, we propose a refined-graph regularized nonnegative matrix factorization by employing a manifold regularized least-squares regression (MRLSR) method to compute the refined graph. In particular, each sample is represented by the whole dataset regularized with ℓ
Number of references:47
Main heading:Matrix algebra
Controlled terms:Factorization - Least squares approximations - Nearest neighbor search - Pattern recognition
Uncontrolled terms:Data representations - Image clustering - Least squares regression - Nonnegative matrix factorization - Refined-graph
Classification code:921 Mathematics
DOI:10.1145/3090312
Funding details: Number: 162102410021, Acronym: -, Sponsor: -;Number: -, Acronym: CAAS, Sponsor: Chinese Academy of Agricultural Sciences;Number: GD201605, Acronym: -, Sponsor: -;Number: -, Acronym: HUST, Sponsor: Henan University of Science and Technology;Number: BUAA-VR-16KF-04, Acronym: -, Sponsor: -;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: ACM, Sponsor: Anacostia Community Museum;Number: 61761130079, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: U1604153, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61761130079 and U1604153, in part by the International Science and Technology Cooperation Project of Henan Province under Grant 162102410021, in part by the State Key Laboratory of Virtual Reality Technology and Systems under Grant BUAA-VR-16KF-04, and in part by the Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province under Grant GD201605. Authors’ addresses: X. Li is with the Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, Shaanxi, P. R. China; email: xuelong_li@opt.ac.cn; G. Cui is with the Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, Shaanxi, P. R. China, and also with the University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, P. R. China; email: guosheng.cui.opt@gmail.com; Y. Dong (corresponding author) is with the Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, Shaanxi, P. R. China, and also with the School of Information Engineering, Henan University of Science and Technology, Luoyang 471023, Henan, P. R. China; email: dongyongsheng98@163.com. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies show this notice on the first page or initial screen of a display along with the full citation. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers, to redistribute to lists, or to use any component of this work in other works requires prior specific permission and/or a fee. Permissions may be requested from Publications Dept., ACM, Inc., 2 Penn Plaza, Suite 701, New York, NY 10121-0701 USA, fax + 1 (212) 869-0481, or permissions@acm.org. ? 2017 ACM 2157-6904/2017/08-ART1 $15.00 https://doi.org/10.1145/3090312
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<405>
Accession number:20180704799262
Title:Hyperspectral image band selection via global optimal clustering
Authors:Zhang, Fahong (1); Wang, Qi (1); Li, Xuelong (2)
Author affiliation:(1) School of Computer Science, Center for OPTical IMagery Analysis and Learning, Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China; (2) Center for OPTical IMagery Analysis and Learning, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Wang, Qi
Source title:International Geoscience and Remote Sensing Symposium (IGARSS)
Abbreviated source title:Dig Int Geosci Remote Sens Symp (IGARSS)
Volume:2017-July
Part number:1 of 1
Issue title:2017 IEEE International Geoscience and Remote Sensing Symposium: International Cooperation for Global Awareness, IGARSS 2017 - Proceedings
Issue date:December 1, 2017
Publication year:2017
Pages:1-4
Article number:8126818
Language:English
CODEN:IGRSE3
ISBN-13:9781509049516
Document type:Conference article (CA)
Conference name:37th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2017
Conference date:July 23, 2017 - July 28, 2017
Conference location:Fort Worth, TX, United states
Conference code:133497
Sponsor:IEEE Geoscience and Remote Sensing Society (GRSS)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Band selection, by choosing a set of representative bands in hyperspectral images (HSI), is concerned to be an effective method to eliminate the 'Hughes phenomenon'. In this paper, we present a global optimal clustering-based band selection (GOC) algorithm based on the hypothesis that all the bands in a cluster are continuous at their wavelengths. After the clustering result is obtained, we propose a greedy-based method to select representative bands in each cluster, trying to minimize the linear reconstruction error. Experiment on a real HSI dataset shows that the proposed method outperforms the state-of-the-art competitors. 2017 IEEE.
Number of references:8
DOI:10.1109/IGARSS.2017.8126818
Funding details: Number: 61379094, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under Grant 61379094.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<406>
Accession number:20181104902481
Title:High-sensitive torsion sensing based on chiral long-period gratings
Authors:Kong, Xudong (1, 2); Ren, Kaili (1, 2); Ren, Liyong (1); Liang, Jian (1, 2); Ju, Haijuan (1, 2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Ren, Liyong(renliy@opt.ac.cn)
Source title:ICOCN 2017 - 16th International Conference on Optical Communications and Networks
Abbreviated source title:ICOCN - Int. Conf. Optical Commun. Networks
Volume:2017-January
Part number:1 of 1
Issue title:ICOCN 2017 - 16th International Conference on Optical Communications and Networks
Issue date:November 27, 2017
Publication year:2017
Pages:1-3
Language:English
ISBN-13:9781538632734
Document type:Conference article (CA)
Conference name:16th International Conference on Optical Communications and Networks, ICOCN 2017
Conference date:August 7, 2017 - August 10, 2017
Conference location:Wuzhen, China
Conference code:133380
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:High-reproducible chiral long-period gratings (CLPGs) are achieved, which are fabricated from normal single mode fibers. To explore torsion sensing application, we investigate the response trend of transmission spectrum versus mechanical twist rate in CLPGs. High torsion sensitivity is achieved, a perfect linear relationship between the resonance wavelength shift and the mechanical twist rate is displayed. 2017 IEEE.
Number of references:9
Main heading:Optical fiber communication
Controlled terms:Fiber optic sensors - Fiber optics - Fibers - Optical fiber fabrication - Single mode fibers - Torsional stress
Uncontrolled terms:Fiber design and fabrication - Fiber optics and optical communications - Linear relationships - Long Period Gratings - Resonance wavelengths - Sensing applications - Transmission spectrums
Classification code:717.1 Optical Communication Systems - 741.1.2 Fiber Optics
DOI:10.1109/ICOCN.2017.8121548
Funding details: Number: 61275149, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61505246, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61535015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under grants 61275149, 61535015 and 61505246.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<407>
Accession number:20171703612605
Title:Cost-optimized microblog distribution over geo-distributed data centers: Insights from cross-media analysis
Authors:Hu, Han (1); Wen, Yonggang (1); Chua, Tat-Seng (2); Li, Xuelong (3)
Author affiliation:(1) School of Computer Science and Engineering, Nanyang Technological University, Blk N4-02C-95, Nanyang Avenue, Singapore; 639798, Singapore; (2) Department of Computer Science, School of Computing, National University of Singapore, AS6, #05-08, Singapore; 117417, Singapore; (3) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Xi'an, Shaanxi; 710119, China
Source title:ACM Transactions on Intelligent Systems and Technology
Abbreviated source title:ACM Trans. Intell. Syst. Technolog.
Volume:8
Issue:3
Issue date:April 2017
Publication year:2017
Article number:40
Language:English
ISSN:21576904
E-ISSN:21576912
Document type:Journal article (JA)
Publisher:Association for Computing Machinery
Abstract:The unprecedent growth of microblog services poses significant challenges on network traffic and service latency to the underlay infrastructure (i.e., geo-distributed data centers). Furthermore, the dynamic evolution in microblog status generates a huge workload on data consistence maintenance. In this article, motivated by insights of cross-media analysis-based propagation patterns, we propose a novel cache strategy for microblog service systems to reduce the inter-data center traffic and consistence maintenance cost, while achieving low service latency. Specifically, we first present a microblog classification method, which utilizes the external knowledge from correlated domains, to categorize microblogs. Then we conduct a large-scale measurement on a representative online social network system to study the category-based propagation diversity on region and time scales. These insights illustrate social common habits on creating and consuming microblogs and further motivate our architecture design. Finally, we formulate the content cache problem as a constrained optimization problem. By jointly using the Lyapunov optimization framework and simplex gradient method, we find the optimal online control strategy. Extensive trace-driven experiments further demonstrate that our algorithm reduces the system cost by 24.5% against traditional approaches with the same service latency. 2017 ACM.
Number of references:39
Main heading:Data flow analysis
Controlled terms:Constrained optimization - Cost benefit analysis - Cost reduction - Gradient methods - Social networking (online)
Uncontrolled terms:Constrained optimi-zation problems - Cross-media - Data centers - Large-scale measurement - On-line social networks - Performance optimizations - Social media analytics - Trace driven experiments
Classification code:723 Computer Software, Data Handling and Applications - 911 Cost and Value Engineering; Industrial Economics - 921.6 Numerical Methods - 961 Systems Science
Numerical data indexing:Percentage 2.45e+01%
DOI:10.1145/3014431
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<408>
Accession number:20170603327886
Title:Learning k for kNN Classification (Open Access)
Authors:Zhang, Shichao (1); Li, Xuelong (2); Zong, Ming (1); Zhu, Xiaofeng (1); Cheng, Debo (1)
Author affiliation:(1) Guangxi Key Lab of MIMS, College of Computer Science and Information Technology, Guangxi Normal University, Guilin, Guangxi, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Zhu, Xiaofeng(xfzhu0011@hotmail.com)
Source title:ACM Transactions on Intelligent Systems and Technology
Abbreviated source title:ACM Trans. Intell. Syst. Technolog.
Volume:8
Issue:3
Issue date:January 2017
Publication year:2017
Article number:43
Language:English
ISSN:21576904
E-ISSN:21576912
Document type:Journal article (JA)
Publisher:Association for Computing Machinery
Abstract:The K Nearest Neighbor (kNN) method has widely been used in the applications of data mining andmachine learning due to its simple implementation and distinguished performance. However, setting all test data with the same κvalue in the previous kNN methods has been proven to make these methods impractical in real applications. This article proposes to learn a correlation matrix to reconstruct test data points by training data to assign different κ values to different test data points, referred to as the Correlation Matrix kNN (CM-kNN for short) classification. Specifically, the least-squares loss function is employed to minimize the reconstruction error to reconstruct each test data point by all training data points. Then, a graph Laplacian regularizer is advocated to preserve the local structure of the data in the reconstruction process. Moreover, an ℓ1-norm regularizer and an ℓ2,1-norm regularizer are applied to learn different κ values for different test data and to result in low sparsity to remove the redundant/noisy feature from the reconstruction process, respectively. Besides for classification tasks, the kNNmethods (including our proposed CM-kNN method) are further utilized to regression and missing data imputation.We conducted sets of experiments for illustrating the efficiency, and experimental results showed that the proposed method was more accurate and efficient than existing kNN methods in data-mining applications, such as classification, regression, and missing data imputation. Copyright is held by the owner/author(s). Publication rights licensed to ACM.
Number of references:55
Main heading:Classification (of information)
Controlled terms:Data mining - Matrix algebra - Nearest neighbor search - Testing
Uncontrolled terms:Data mining applications - K-nearest neighbor method - K-NN classifications - kNN method - Missing data imputations - Reconstruction error - Reconstruction process - Sparse learning
Classification code:716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing - 921.1 Algebra - 921.5 Optimization Techniques
DOI:10.1145/2990508
Funding details: Number: 2015GXNSFCB139011, Acronym: -, Sponsor: Natural Science Foundation of Guangxi Province;Number: 2016YFB1000905, Acronym: -, Sponsor: -;Number: 2013CB329404, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61573270, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61263035, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61672177, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the China Key Research Program (Grant no: 2016YFB1000905), the National Natural Science Foundation of China (Grant Nos: 61263035, 61573270, and 61672177), the China 973 Program (Grant no: 2013CB329404), the Guangxi Natural Science Foundation (Grant no: 2015GXNSFCB139011), the Guangxi Higher Institutions' Program of Introducing 100 High-Level Overseas Talents, the Guangxi Collaborative Innovation Center of Multi-Source Information Integration and Intelligent Processing, and the Guangxi "Bagui" Teams for Innovation and Research.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<409>
Accession number:20182405311056
Title:An adaptive correction algorithm for non-uniform illumination panoramic images based on the improved bilateral gamma function
Authors:Wang, Dianwei (1); Yan, Weichao (1); Zhu, Tingge (1); Xie, Yongjun (2); Song, Haijun (2); Hu, Xinrong (2)
Author affiliation:(1) Center for Image and Information Processing, Xi'An University of Posts and Telecommunications, Xi'an, China; (2) Space Photonic Information New Technology Lab., Xi'An Institute of Optics and Precision Mechanics, CAS, Xi'an, China
Corresponding author:Wang, Dianwei(wangdianwei@126.com)
Source title:DICTA 2017 - 2017 International Conference on Digital Image Computing: Techniques and Applications
Abbreviated source title:DICTA - Int. Conf. Digit. Image Comput.: Techniques Appl.
Volume:2017-December
Part number:1 of 1
Issue title:DICTA 2017 - 2017 International Conference on Digital Image Computing: Techniques and Applications
Issue date:December 19, 2017
Publication year:2017
Pages:1-6
Language:English
ISBN-13:9781538628393
Document type:Conference article (CA)
Conference name:2017 International Conference on Digital Image Computing: Techniques and Applications, DICTA 2017
Conference date:November 29, 2017 - December 1, 2017
Conference location:Sydney, NSW, Australia
Conference code:134013
Sponsor:Australian Government, Department of Defence Science and Technology Group; Canon Information Systems Research Australia Pty Ltd (CISRA); The University of Sydney
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In this work we discuss an efficient strategy for reducing the negative impact of non-uniform illumination to panoramic image quality by proposing an adaptive correction algorithm based on the improved Bilateral Gamma function. Firstly the illumination component is extracted by a fast image guided filter. Then an improved bilateral Gamma function fed by the distribution characteristics of illumination is modelled. Finally the non-uniform illumination panoramic image is adjusted adaptively by the devised algorithm, which can increase the intensity value at low illumination regions, and vice versa in the high illumination regions in a panoramic image. Experimental results show that the proposed algorithm can reduce the negative impact caused by the non-uniformity of illumination conditions and enhance the visual quality across different imaging scenarios. 2017 IEEE.
Number of references:18
Main heading:Image enhancement
Controlled terms:Inertial confinement fusion
Uncontrolled terms:Adaptive corrections - Distribution characteristics - Efficient strategy - Illumination components - Illumination conditions - Low illuminations - Non-uniform illumination - Non-uniformities
Classification code:932.2.1 Fission and Fusion Reactions
DOI:10.1109/DICTA.2017.8227404
Funding details: Number: 2015JM6350, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 16JK1691, Acronym: -, Sponsor: Education Department of Shaanxi Province;Number: 2014GABJC024, Acronym: MPS, Sponsor: Ministry of Public Security of the People's Republic of China;
Funding text:ACKNOWLEDGMENT This work is supported by the 2014 Special Foundational Research Project for Intensifying the Police with Science and Technology of Ministry of Public Security, People’s Republic of China (Fund No. 2014GABJC024), 2015 The Natural Science Foundation Research Project of Shaanxi Province (Fund No.2015JM6350) and 2016 Special Scientific Research Project of the Education Department of Shaanxi Province (Fund No. 16JK1691).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<410>
Accession number:20180504692848
Title:High-precision test station for stray light based on point source transmittance
Authors:Chen, Qin-Fang (1); Ma, Zhen (1); Wang, Hu (1); Li, Xin-Yao (2); Pang, Zhi-Hai (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai; 200083, China
Corresponding author:Chen, Qin-Fang(cqf2009@opt.ac.cn)
Source title:Guangxue Jingmi Gongcheng/Optics and Precision Engineering
Abbreviated source title:Guangxue Jingmi Gongcheng
Volume:25
Issue date:December 1, 2017
Publication year:2017
Pages:39-44
Language:Chinese
ISSN:1004924X
CODEN:GJGOF4
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences
Abstract:The increased demand for detection of dim targets in deep space and the rapid development of low threshold space-based sensors have required greater suppression performance of stay light and higher test accuracy. A stray light test station based on Point Source Transmittance (PST) is built. The station allows an measuring aperture up to 1 m and waveband from the visible to the infrared. In the station, the turntable instrument is allowed to scan ±110° in azimuth, and ±15° in picth. The test station is all black with dimensions of 28 m×8 m×9 m. In order to control light scattered from the collimator, the primary mirror with less than 2 nm RMS roughness is manufactured. A double cylindrical chamber is employed to direct and attenuate the scattered light from the system. In addition, a clean room in 1 000 class is utilized to filter air to reduce light scattered from particles in the air. Analysis and measurements show that the test station can measure point PST as low as 10-7at visible wavelengths, and 10-6at infrared wavelengths. Its test accuracy |lg(measurement value /true value)| is less than 0.5. 2017, Science Press. All right reserved.
Number of references:10
Main heading:Optical testing
Controlled terms:Pollution - Space optics - Stray light
Uncontrolled terms:Cylindrical chambers - Infrared wavelengths - Light pollution - Light scattered - Point sources - Primary mirrors - Space-based sensors - Visible wavelengths
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems
Numerical data indexing:Size 1.00e+00m, Size 2.00e-09m
DOI:10.3788/OPE.20172514.0039
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<411>
Accession number:20171603582040
Title:How to obtain a shortest mode converter based on periodic waveguide with limited index contrast?
Authors:Zhang, Lingxuan (1, 2, 3); Zhang, Wenfu (1, 2, 3); Wang, Guoxi (1, 2, 3); Hu, Yaowei (1); Ge, Zhiqiang (1, 2, 3); Wang, Leiran (1, 2, 3); Sun, Qibing (1, 2); Wang, Weiqiang (1, 2, 3); Gong, Yongkang (2, 4); Zhao, Wei (1, 2, 3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics (XIOPM) of Chinese Academy of Sciences (CAS), Xi’an; 710119, China; (2) China-UK Joint Research Center on Micro/Nano Photonics, XIOPM of CAS, Xi’an; 710119, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China; (4) Faculty of Advanced Technology, University of South Wales, Pontypridd; CF37 1DL, United Kingdom
Corresponding author:Zhang, Wenfu(wfuzhang@opt.ac.cn)
Source title:Applied Physics B: Lasers and Optics
Abbreviated source title:Appl Phys B
Volume:123
Issue:5
Issue date:May 1, 2017
Publication year:2017
Article number:140
Language:English
ISSN:09462171
CODEN:APBOEM
Document type:Journal article (JA)
Publisher:Springer Verlag
Abstract:Mode converter is one of most significant elements in photonic integrated circuits. It relies on increasing index contrast to shorten its length. However, index contrast is limited for technology. In addition, an overlarge index contrast leads to some disadvantages, such as large scattering loss, reflection loss, and small tolerance for manufacturing. Thus, an approximate scheme to design a mode converter is manipulating the transverse distribution of index to achieve the minimum length when the index contrast is given. We have analytically deduced the theoretical maximum coupled efficiency in periodic waveguide, which determines the minimum coupling length of mode converter. What is more, we have demonstrated how to construct a distribution function of indices in a cross section of waveguide to achieve the minimum length and a case is also given to illustrate the process. Proofs, based on both mathematic derivation and numerical simulation, have been exhibited in the paper. 2017, Springer-Verlag Berlin Heidelberg.
Number of references:22
Main heading:Optical waveguides
Controlled terms:Distribution functions
Uncontrolled terms:Coupling length - Index contrasts - Mode converter - Periodic waveguides - Photonic integrated circuits - Reflection loss - Scattering loss - Transverse distribution
Classification code:714.3 Waveguides - 922.1 Probability Theory
DOI:10.1007/s00340-017-6718-7
Funding details: Number: 61405243, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: XDB 24030600, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 11404388, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61475188, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61635013, Acronym: XUPT, Sponsor: Xi'an University of Posts and Telecommunications;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China (NSFC) under Grant Nos. 61475188, 11404388, and Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB 24030600). G. Wang acknowledge funding from the NSFC under Grants No. 61405243, and New Star Team of Xi'an University of Post & Telecommunications. L. Wang acknowledge funding from the NSFC under Grants No,.61675231.W. Zhao acknowledges support from the NSFC under Grant No. 61635013.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<412>
Accession number:20180204627037
Title:Optimizing the phase matching in high-order harmonics generation
Authors:Wang, Chao (1, 2, 3); Kim, Dong Eon (2, 3); Kang, Yi-Fan (4); Bhattacharjee, Nilabha (2, 3); Bai, Yong-Lin (1); Wang, Yi-Shan (5)
Author affiliation:(1) Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Department of Physics, Center for Attosecond Science and Technology, Pohang University of Science and Technology, Pohang; 37673, Korea, Republic of; (3) Max Planck Center for Attosecond Science, MPK, POSTECH, Pohang; 37673, Korea, Republic of; (4) School of Science, Air Force Engineering University, Xi'an; 710051, China; (5) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10457
Part number:1 of 1
Issue title:AOPC 2017: Laser Components, Systems, and Applications
Issue date:2017
Publication year:2017
Article number:1045707
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510613959
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Laser Components, Systems, and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:132927
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:This paper presents an experimental method to realize the best high-order harmonics generation (HHG) phase matching in the interaction of strong optical field with gas target. By studying the effects of the relative location between gas target source and the Gaussian-shaped driving femtosecond laser field focus on the harmonics yield, conclusions are obtained that the optimum position of gas target for phase matching is always behind the of the focal point of the driving field, with much lower HHG yield before the focus caused by serious harmonics phase mismatch. Meanwhile, with optimum harmonics phase matching, the high-order harmonics field that resulted has the similar Gaussian-shaped spatial distribution characteristics with the driving field, verifying experimentally the commonly used assumptions for attosecond laser pulse based on HHG. This optimization method is also suitable both for other driving field with different spatial distribution of light intensity and other type of target source. The results here have important guiding significance for high harmonic generation and high harmonic isolated attosecond pulse technology. 2017 SPIE.
Number of references:10
Main heading:Phase matching
Controlled terms:Harmonic analysis - Laser pulses - Nonlinear optics - Spatial distribution
Uncontrolled terms:Attosecond laser pulse - Attoseconds - Distribution characteristics - Femtosecond laser field - Gas targets - High harmonic generation - High order harmonics generation - Isolated attosecond pulse
Classification code:713 Electronic Circuits - 741.1.1 Nonlinear Optics - 744.1 Lasers, General - 921 Mathematics - 921.6 Numerical Methods
DOI:10.1117/12.2281986
Funding details: Number: 11505289, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11675258, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61690222, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The work was supported by the National Natural Science Foundation of China (Grant No. 11675258, 11505289, 61690222), the CAS/SAFEA international partnership program for Creative Research Teams, and by Technology Foundation for Selected Overseas Chinese Scholar, Ministry of Personnel of Shaanxi Province.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<413>
Accession number:20170703355404
Title:Orthogonal self-guided similarity preserving projection for classification and clustering
Authors:Fang, Xiaozhao (1); Xu, Yong (2); Li, Xuelong (3); Lai, Zhihui (4); Teng, Shaohua (1); Fei, Lunke (2)
Author affiliation:(1) School of Computer Science and Technology, Guangdong University of Technology, Guangzhou; 510006, China; (2) Bio-Computing Research Center, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, Guangdong; 518055, China; (3) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences, Xian, Shaanxi; 710119, China; (4) College of Computer Science and Software Engineering, Shenzhen University, Shenzhen, Guangdong; 518055, China
Corresponding author:Xu, Yong(yongxu@ymail.com)
Source title:Neural Networks
Abbreviated source title:Neural Netw.
Volume:88
Issue date:April 1, 2017
Publication year:2017
Pages:1-8
Language:English
ISSN:08936080
E-ISSN:18792782
CODEN:NNETEB
Document type:Journal article (JA)
Publisher:Elsevier Ltd
Abstract:A suitable feature representation can faithfully preserve the intrinsic structure of data. However, traditional dimensionality reduction (DR) methods commonly use the original input features to define the intrinsic structure, which makes the estimated intrinsic structure unreliable since redundant or noisy features may exist in the original input features. Thus a dilemma is that (1) one needs the most suitable feature representation to define the intrinsic structure of data and (2) one should use the proper intrinsic structure of data to perform feature extraction. To address the problem, in this paper we propose a unified learning framework to simultaneously obtain the optimal feature representation and intrinsic structure of data. The structure is learned from the results of feature learning, and the features are learned to preserve the refined structure of data. By leveraging the interactions between the process of determining the most suitable feature representation and intrinsic structure of data, we can capture accurate structure and obtain the optimal feature representation of data. Experimental results demonstrate that our method outperforms state-of-the-art methods in DR and subspace clustering. The code of the proposed method is available at “http://www.yongxu.org/lunwen.html ”. 2017 Elsevier Ltd
Number of references:41
Main heading:Reduction
Controlled terms:Clustering algorithms
Uncontrolled terms:Classification and clustering - Dimensionality reduction - Feature representation - Intrinsic structures - Learning frameworks - Similarity preserving - State-of-the-art methods - Sub-Space Clustering
Classification code:802.2 Chemical Reactions - 903.1 Information Sources and Analysis
DOI:10.1016/j.neunet.2017.01.001
Funding details: Number: 2012CB316400, Acronym: -, Sponsor: National Basic Research Program of China (973 Program);Number: 61370163, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:This paper is partially supported by the National Basic Research Program of China (973 Program) (Grant No. 2012CB316400), the National Natural Science Foundation of China (Grant Nos. 61370163, and 61332011).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<414>
Accession number:20173804181504
Title:Graph PCA Hashing for Similarity Search
Authors:Zhu, Xiaofeng (1); Li, Xuelong (2); Zhang, Shichao (1); Xu, Zongben (3); Yu, Litao (4); Wang, Can (5)
Author affiliation:(1) Guangxi Key Laboratory of MIMS, College of Computer Science and Information Technology, Guangxi Normal University, Guilin; 541004, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) School of Mathematics and Statistics, Xian Jiaotong University, Xian; 710049, China; (4) Queensland Brain Institute, University of Queensland, QLD; 4072, Australia; (5) School of Information and Communication Technology, Griffith University, Southport; QLD; 4215, Australia
Corresponding author:Zhang, Shichao(zhangsc@mailbox.gxnu.edu.cn)
Source title:IEEE Transactions on Multimedia
Abbreviated source title:IEEE Trans Multimedia
Volume:19
Issue:9
Issue date:September 2017
Publication year:2017
Pages:2033-2044
Article number:7926439
Language:English
ISSN:15209210
CODEN:ITMUF8
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:This paper proposes a new hashing framework to conduct similarity search via the following steps: first, employing linear clustering methods to obtain a set of representative data points and a set of landmarks of the big dataset; second, using the landmarks to generate a probability representation for each data point. The proposed probability representation method is further proved to preserve the neighborhood of each data point. Third, PCA is integrated with manifold learning to lean the hash functions using the probability representations of all representative data points. As a consequence, the proposed hashing method achieves efficient similarity search (with linear time complexity) and effective hashing performance and high generalization ability (simultaneously preserving two kinds of complementary similarity structures, i.e., local structures via manifold learning and global structures via PCA). Experimental results on four public datasets clearly demonstrate the advantages of our proposed method in terms of similarity search, compared to the state-of-the-art hashing methods. 2017 IEEE.
Number of references:67
Main heading:Big data
Controlled terms:Clustering algorithms - Hash functions - Image retrieval - Probability
Uncontrolled terms:Complementary similarities - Generalization ability - Hashing - Linear time complexity - Manifold learning - Representation method - Similarity search - Spectral clustering
Classification code:723.2 Data Processing and Image Processing - 903.1 Information Sources and Analysis - 922.1 Probability Theory
DOI:10.1109/TMM.2017.2703636
Funding details: Number: 16-A-01-02, Acronym: -, Sponsor: -;Number: 16-A-01-01, Acronym: -, Sponsor: -;Number: 61363009, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61573270, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61761130079, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61672177, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: GXNU, Sponsor: Guangxi Normal University;Number: 2015GXNSFCB139011, Acronym: -, Sponsor: Natural Science Foundation of Guangxi Province;Number: 2016YFB1000905, Acronym: -, Sponsor: -;Number: 2013CB329404, Acronym: -, Sponsor: -;
Funding text:Manuscript received December 22, 2016; revised April 9, 2017; accepted April 26, 2017. Date of publication May 11, 2017; date of current version August 12, 2017. This work was supported in part by the China Key Research Program under Grant 2016YFB1000905, in part by the China 973 Program under Grant 2013CB329404, in part by the China 1000-Plan National Distinguished Professorship, in part by the Nation Natural Science Foundation of China under Grant 61573270, Grant 61761130079, Grant 61363009, and Grant 61672177, in part by the Guangxi Natural Science Foundation under Grant 2015GXNSFCB139011, in part by the Guangxi High Institutions Program of Introducing 100 High-Level Overseas Talents, in part by the Guangxi Collaborative Innovation Center of Multi-Source Information Integration and Intelligent Processing, in part by the Research Fund of Guangxi Key Lab of MIMS (16-A-01-01 and 16-A-01-02), and in part by the Guangxi Bagui Teams for Innovation and Research. The guest editor coordinating the review of this manuscript and approving it for publication was Mr. Jingkuan Song. (Corresponding authors: Shichao Zhang and Zongben Xu.) X. Zhu and S. Zhang are with the Guangxi Key Laboratory of MIMS and the College of Computer Science and Information Technology, Guangxi Normal University, Guilin 541004, China (e-mail: xfzhu0011@hotmail.com; zhangsc@ mailbox.gxnu.edu.cn).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<415>
Accession number:20164502998480
Title:Optimization design of a 20-in. elliptical MCP-PMT
Authors:Chen, Ping (1, 2, 3); Tian, Jinshou (1, 3); Wei, Yonglin (1); Liu, Hulin (1); Sai, Xiaofeng (1); He, Jianping (1); Chen, Lin (1, 2); Wang, Xing (1); Lu, Yu (1)
Author affiliation:(1) Key Laboratory of Ultra-fast photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; Shanxi; 030006, China
Corresponding author:Chen, Ping(chenping@opt.cn)
Source title:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Abbreviated source title:Nucl Instrum Methods Phys Res Sect A
Volume:841
Issue date:January 1, 2017
Publication year:2017
Pages:104-108
Language:English
ISSN:01689002
CODEN:NIMAER
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:This paper describes the simulation work for optimizing the newly developed 20-in. elliptical MCP-PMT by enlarging the outside diameters of the two focusing electrodes and the open area of the glass bulb. Effects of biasing voltages applied to the two focusing electrodes and the MCP input facet are studied. With the new design of the 20 in. MCP-PMT, the transit time spread of the prototype can be less than 3 ns and the collection efficiency is as much as the present prototype. 2016 Elsevier B.V.
Number of references:10
Main heading:Electrodes
Controlled terms:Efficiency - Phototubes
Uncontrolled terms:20 in. PMT - Biasing voltages - Collection efficiency - MCP-PMT - Optimization design - Outside diameter - Transit time spread
Classification code:714.1 Electron Tubes - 913.1 Production Engineering
Numerical data indexing:Size 5.08e-01m, Time 3.00e-09s
DOI:10.1016/j.nima.2016.10.036
Funding details: Number: 2016YFF0100401, Acronym: -, Sponsor: -;Number: 11305258, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The author would like to thank Tianchi Zhao for the guidance and simulating discussions of this study. The work is supported by the National Natural Science Foundation of China [Grant No. 11305258 ] and the National Key Scientific Instrument and Equipment Development [Grant No. 2016YFF0100401 ].
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<416>
Accession number:20180304653911
Title:Design of high precision temperature control system for to packaged LD
Authors:Liang, Enji (1, 2); Luo, Baoke (1); Zhuang, Bin (1); He, Zhengquan (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an, Shannxi; 710119, China; (2) Shaanxi Normal University, Xi'an, Shannxi; 710119, China
Corresponding author:He, Zhengquan(lajihuya@163.com)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10458
Part number:1 of 1
Issue title:AOPC 2017: 3D Measurement Technology for Intelligent Manufacturing
Issue date:2017
Publication year:2017
Article number:104581Y
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510613973
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: 3D Measurement Technology for Intelligent Manufacturing, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133227
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Temperature is an important factor affecting the performance of TO package LD. In order to ensure the safe and stable operation of LD, a temperature control circuit for LD based on PID technology is designed. The MAX1978 and an external PID circuit are used to form a control circuit that drives the thermoelectric cooler (TEC) to achieve control of temperature and the external load can be changed. The system circuit has low power consumption, high integration and high precision,and the circuit can achieve precise control of the LD temperature. Experiment results show that the circuit can achieve effective and stable control of the laser temperature. 2017 SPIE.
Number of references:8
Main heading:Low power electronics
Controlled terms:Manufacture - Temperature control - Thermoelectric equipment
Uncontrolled terms:Control circuits - Laser temperatures - Low-power consumption - MAX1978 - Stable operation - Temperature control circuit - Thermoelectric cooler - TO package LD
Classification code:537.1 Heat Treatment Processes - 615.4 Thermoelectric Energy - 731.3 Specific Variables Control
DOI:10.1117/12.2283461
Funding details: Number: 61535015,61377087, Acronym: -, Sponsor: Aeronautical Science Foundation of China;Number: 61275086, Acronym: -, Sponsor: Aeronautical Science Foundation of China;
Funding text:This work was supported by grants from the NationalNatural Science Foundation of China(Grant No.61535015,61377087 and 61275086). We are thankful to reviewers who provided substantial comments and suggestions that led to the improvement of this manuscript.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<417>
Accession number:20172703878474
Title:On-chip router elements based on silicon hybrid plasmonic waveguide
Authors:Ge, Zhiqiang (1, 2, 3, 4); Zhang, Lingxuan (1, 3, 4); Wang, Guoxi (1, 3, 4); Zhang, Wenfu (1, 3, 4); Liu, Mulong (1, 3, 4); Li, Siqi (1, 3, 4); Wang, Leiran (1, 3, 4); Sun, Qibing (1, 4); Ren, Wenzhen (1, 4); Si, Jinhai (2); Zhao, Wei (1, 3, 4)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Key Laboratory for Physical Electronics and Devices, Ministry of Education, Shaanxi Key Lab. of Information Photonic Technique, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; (3) China-U.K. Joint Research Center on Micro/Nano Photonics, XIOPM, CAS, Xi'an; 710119, China; (4) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Wang, Guoxi(wangguoxi@opt.cn)
Source title:IEEE Photonics Technology Letters
Abbreviated source title:IEEE Photonics Technol Lett
Volume:29
Issue:12
Issue date:June 15, 2017
Publication year:2017
Pages:952-955
Article number:7903684
Language:English
ISSN:10411135
CODEN:IPTLEL
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We have proposed and investigated micro-ring add-drop switch and M-Z interferometric element for on-chip router applications based on silicon hybrid plasmonic waveguide. The proposed silicon hybrid plasmonic waveguide possesses lower propagation loss compared with conventional plasmonic metal-insulator-metal waveguide. By employing this low loss waveguide, it is found that the proposed ring add-drop switch possesses high transmission efficiency (-1 dB), and the extinction ratio can be as high as 30 dB at 1.556 μm. In addition, the transmission efficiency of drop port for the M-Z interferometric element can be -1.15 dB at 1.55 μm. The designed elements are essential for the on-chip router in optical interconnect. 2017 IEEE.
Number of references:24
Main heading:Plasmons
Controlled terms:Drops - Efficiency - Finite difference time domain method - Interferometry - Metal insulator boundaries - Optical waveguides - Plasmonics - Silicon - Time domain analysis
Uncontrolled terms:Extinction ratios - High transmission - Hybrid plasmonic waveguides - Low-loss waveguides - Metal-insulator-metal waveguides - On chips - Optical interconnect - Transmission efficiency
Classification code:549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 714.3 Waveguides - 913.1 Production Engineering - 921 Mathematics - 931.3 Atomic and Molecular Physics - 941.4 Optical Variables Measurements
Numerical data indexing:Decibel -1.00e+00dB, Decibel -1.15e+00dB, Decibel 3.00e+01dB, Size 1.55e-06m, Size 1.56e-06m
DOI:10.1109/LPT.2017.2695081
Funding details: Number: XAB2015B26, Acronym: -, Sponsor: -;Number: -, Acronym: XUPT, Sponsor: Xi'an University of Posts and Telecommunications;Number: XDB24030600, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61675231, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61405243, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11404388, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61635013, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61475188, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275062, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61275062, Grant 11404388, Grant 61475188, Grant 61405243, Grant 61635013, and Grant 61675231, in part by the Strategic Priority Research Program of the Chinese Academy of Sciences under Grant XDB24030600, and in part by the New Star Team of Xi'an University of Posts and Telecommunications. The work of W. Ren was supported by the CAS Light of West China Program under Grant XAB2015B26.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<418>
Accession number:20164102882525
Title:Depth profiling of the refractive index from probe beam deflections induced by a serrated pump illumination on GaAs
Authors:Liang, Lingliang (1, 2, 3); Tian, Jinshou (1); Wang, Tao (1); Wu, Shengli (3); Li, Fuli (3); Gao, Guilong (1, 2, 3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi’an, China; (2) College of Materials Science and Opto-Electronic Technology, Graduate University of Chinese Academy of Sciences, Beijing, China; (3) School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an, China
Corresponding author:Liang, Lingliang(lianglingliang@opt.cn)
Source title:Journal of Modern Optics
Abbreviated source title:J. Mod. Opt.
Volume:64
Issue:5
Issue date:March 9, 2017
Publication year:2017
Pages:431-438
Language:English
ISSN:09500340
E-ISSN:13623044
CODEN:JMOPEW
Document type:Journal article (JA)
Publisher:Taylor and Francis Ltd.
Abstract:We demonstrate a method to experimentally quantify the distribution with depth of photo-induced refractive index generated by a pump illumination, which is spatially modulated by a serrated mask on the surface of bulk GaAs. This photo-induced refractive index change distributes inhomogeneously with depth thus deflecting the probe beam transversely passing through the depth direction. The refractive index distribution with depth is deduced from the set of deflections of probe beam with respect to the propagating distances, which is collected experimentally in a pump probe arrangement. The obtained set of deflections of probe beam is theoretically proved to be reliable. 2016 Informa UK Limited, trading as Taylor & Francis Group.
Number of references:21
Main heading:Refractive index
Controlled terms:Deflection (structures) - Depth profiling - Gallium arsenide - Gradient methods - III-V semiconductors - Probes - Pumps - Semiconducting gallium
Uncontrolled terms:Index quantifying - Optical beam deflection - Photo induced refractive index changes - Photo-induced - Probe beam deflection - Pump probe - Refractive-index distribution - Spatially modulated
Classification code:408.2 Structural Members and Shapes - 618.2 Pumps - 712.1.1 Single Element Semiconducting Materials - 741.1 Light/Optics - 801 Chemistry - 804 Chemical Products Generally - 921.6 Numerical Methods
DOI:10.1080/09500340.2016.1241902
Funding details: Number: -, Acronym: NPU, Sponsor: Northwestern Polytechnical University;Number: 11274377, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61176006, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: ZDY2011-2, Acronym: -, Sponsor: -;
Funding text:This work was supported by the National Natural Science Foundation of China [grant number 11274377], [grant number 61176006]; State Major Research Equipment Project under [grant number ZDY2011-2]. We would like to thank Prof. Jianlin Zhao, Dr. Xuetao Gan and Yadong Wang at Northwestern Polytechnical University for their contributions to this research and are grateful to Prof. Guanghua Cheng for several suggestive discussions about the experiment.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<419>
Accession number:20171503555015
Title:Remote Sensing Image Scene Classification: Benchmark and State of the Art
Authors:Cheng, Gong (1); Han, Junwei (1); Lu, Xiaoqiang (2)
Author affiliation:(1) School of Automation, Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Han, Junwei(junweihan2010@gmail.com)
Source title:Proceedings of the IEEE
Abbreviated source title:Proc. IEEE
Volume:105
Issue:10
Issue date:October 2017
Publication year:2017
Pages:1865-1883
Article number:7891544
Language:English
ISSN:00189219
CODEN:IEEPAD
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Remote sensing image scene classification plays an important role in a wide range of applications and hence has been receiving remarkable attention. During the past years, significant efforts have been made to develop various data sets or present a variety of approaches for scene classification from remote sensing images. However, a systematic review of the literature concerning data sets and methods for scene classification is still lacking. In addition, almost all existing data sets have a number of limitations, including the small scale of scene classes and the image numbers, the lack of image variations and diversity, and the saturation of accuracy. These limitations severely limit the development of new approaches especially deep learning-based methods. This paper first provides a comprehensive review of the recent progress. Then, we propose a large-scale data set, termed 'NWPU-RESISC45,' which is a publicly available benchmark for REmote Sensing Image Scene Classification (RESISC), created by Northwestern Polytechnical University (NWPU). This data set contains 31 500 images, covering 45 scene classes with 700 images in each class. The proposed NWPU-RESISC45 1) is large-scale on the scene classes and the total image number; 2) holds big variations in translation, spatial resolution, viewpoint, object pose, illumination, background, and occlusion; and 3) has high within-class diversity and between-class similarity. The creation of this data set will enable the community to develop and evaluate various data-driven algorithms. Finally, several representative methods are evaluated using the proposed data set, and the results are reported as a useful baseline for future research. 1963-2012 IEEE.
Number of references:176
Main heading:Classification (of information)
Controlled terms:Deep learning - Image classification - Remote sensing
Uncontrolled terms:Benchmark data - handcrafted features - Remote sensing images - Scene classification - Unsupervised feature learning
Classification code:716.1 Information Theory and Signal Processing
DOI:10.1109/JPROC.2017.2675998
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<420>
Accession number:20164803061120
Title:Study of visibility enhancement of hazy images based on dark channel prior in polarimetric imaging
Authors:Zhang, Wenfei (1, 2, 3); Liang, Jian (1, 3); Ju, Haijuan (1, 3); Ren, Liyong (1); Qu, Enshi (1); Wu, Zhaoxin (2)
Author affiliation:(1) Research Department of Information Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Department of Electronics Science and Technology, School of Electronic & Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Ren, Liyong(renliy@opt.ac.cn)
Source title:Optik
Abbreviated source title:Optik
Volume:130
Issue date:February 1, 2017
Publication year:2017
Pages:123-130
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Elsevier GmbH
Abstract:During past decades, lots of efforts on image dehazing have been made based on either computer vision or physical models. In this paper, based on the combination of the polarimetric imaging and the dark channel prior techniques, we propose a novel haze-removal method. On the one hand, the former technique ensures this method has the advantage of keeping the detailed information which might be almost vanished in hazy images; on the other hand, the latter technique provides a much easier way to precisely estimate the key parameters, such as the global atmospheric light and the degree of polarization of the airlight. Moreover, in order to realize the automatically dehazing process with our method, a dynamic bias factor is creatively introduced into the dehazing process by use of the evaluation function—Entropy, ensuring excellent dehazed image being automatically obtained while not involving any other human-computer interaction. Experimental results indicate that our dehazing method can not only enhance the visibility of the hazy images effectively, but also preserve the details considerably. In addition, it is also found that this method is useful and effective for thin, medium and dense haze conditions, and thus shows a good robustness and universality. 2016 Elsevier GmbH
Number of references:18
Main heading:Image enhancement
Controlled terms:Demulsification - Human computer interaction - Polarimeters - Scattering - Visibility
Uncontrolled terms:Dark channel priors - Degree of polarization - Dynamic bias - Evaluation function - Haze removal - Image dehazing - Physical model - Polarimetric imaging
Classification code:741.2 Vision - 802.3 Chemical Operations - 941.3 Optical Instruments
DOI:10.1016/j.ijleo.2016.11.047
Funding details: Number: 61535015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61505246, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275149, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by National Natural Science Foundation of China under grants 61505246 , 61275149 and 61535015 .
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<421>
Accession number:20173003985445
Title:Passively Q-switched Nd: YVO
Authors:Wang, Xi (1, 2); Wang, Yonggang (1, 3); Mao, Dong (4); Li, Lu (5); Chen, Zhendong (3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) School of Physics and information Technology, Shaanxi Normal University, Xi'an; 710119, China; (4) MOE Key Laboratory of Space Applied Physics and Chemistry, Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an; 710072, China; (5) School of Science, Xi'an University of Posts and Telecommunications, Xi'an; 710121, China
Corresponding author:Wang, Yonggang(chinawygxjw@snnu.edu.cn)
Source title:Optical Materials Express
Abbreviated source title:Opt. Mater. Express
Volume:7
Issue:8
Issue date:2017
Publication year:2017
Article number:297738
Language:English
E-ISSN:21593930
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We report on a passively Q-switched Nd:YVO
Number of references:51
Main heading:Pulsed lasers
Controlled terms:Fiber lasers - Iron oxides - Magnetite - Nanoparticles - Neodymium compounds - Pulse repetition rate - Q switched lasers - Q switching - Saturable absorbers - Semiconductor quantum wells - Solid state lasers
Uncontrolled terms:Average output power - Fe3O4 nanoparticles - Ferroferric oxides - Laser wavelength - Passively Q-switched - Pulsed fiber lasers - Saturable absorption - Single pulse energy
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 744 Lasers - 761 Nanotechnology - 804.2 Inorganic Compounds - 933 Solid State Physics
Numerical data indexing:Energy 1.80e-07J, Frequency 5.76e+05Hz, Percentage 2.49e+00%, Power 1.04e-01W, Power 3.53e+00W, Size 1.00e-06m, Size 1.06e-06m, Time 5.30e-08s
DOI:10.1364/OME.7.002913
Funding details: Number: GK201702005, Acronym: -, Sponsor: -;Number: 61378024, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Central University Special Fund Basic Research and Operating Expenses (GK201702005); National Natural Science Foundation of China (61378024).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<422>
Accession number:20172803934736
Title:Compact eccentric long period grating with improved sensitivity in low refractive index region
Authors:Shen, Fangcheng (1); Zhou, Kaiming (2, 3); Gordon, Neil (2); Zhang, Lin (2); Shu, Xuewen (1)
Author affiliation:(1) Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan; 430074, China; (2) Aston Institute of Photonic Technologies, Aston University, Birmingham; B4 7ET, United Kingdom; (3) Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an, China
Corresponding author:Shu, Xuewen(xshu@hust.edu.cn)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:14
Issue date:July 10, 2017
Publication year:2017
Pages:15729-15736
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We demonstrate a compact eccentric long period grating with enhanced sensitivity in low refractive index region. With a period designed at 15 μm for coupling light to high order cladding modes, the grating is more sensitive to surrounding refractive index in low refractive index region. The intrinsically low coupling coefficients for those high order cladding modes are significantly improved with the eccentric localized inscription induced by the femtosecond laser. The fabricated grating is compact with a length of 4.05 mm, and exhibits an average sensitivity of ~505 nm/RIU in low refractive index region (1.3328-1.3544). The proposed principle can also work in other refractive index region with a proper choice of the resonant cladding modes. 2017 Optical Society of America.
Number of references:38
Main heading:Refractive index
Controlled terms:Fiber optic sensors
Uncontrolled terms:Average sensitivities - Cladding modes - Coupling light - Enhanced sensitivity - Long Period Gratings - Low coupling - Low refractive index - Surrounding refractive indices (SRI)
Classification code:741.1 Light/Optics - 741.1.2 Fiber Optics
Numerical data indexing:Size 1.50e-05m, Size 4.05e-03m
DOI:10.1364/OE.25.015729
Funding details: Number: -, Acronym: CSC, Sponsor: China Scholarship Council;
Funding text:Director Fund of WNLO; National 1000 Young Talents Program, China; 111 Project (No. B07038). F. S. acknowledges the China Scholarship Council for the financial support.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<423>
Accession number:20174904498553
Title:Experimental investigation of high power pulsed 2.8 μm Er3+-doped ZBLAN fiber lasers
Authors:Shen, Yanlong (1, 2, 3, 4); Wang, Yishan (1, 5); Huang, Ke (3); Luan, Kunpeng (3); Chen, Hongwei (3); Tao, Mengmeng (3); Yu, Li (3); Yi, Aiping (3); Si, Jinhai (2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (2) Shaanxi Key Laborator of Photonics Technology for Information, School of Electronics and Information Engineering, Xi'An Jiaotong University, Xi'an, Shaanxi; 710049, China; (3) State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi; 710024, China; (4) University of Chinese Academy of Sciences, Beijing; 100049, China; (5) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi; 030006, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10173
Part number:1 of 1
Issue title:Fourth International Symposium on Laser Interaction with Matter
Issue date:2017
Publication year:2017
Article number:101731K
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:4th International Symposium on Laser Interaction with Matter
Conference date:November 6, 2016
Conference location:Chengdu, China
Conference code:128620
Sponsor:Academy of Engineering Physics, Research Center of Laser Fusion; CAS, Changchun Institute of Optics, Fine Mechanics and Physics; et al.; Nanjing University of Science and Technology, Advanced Solid State Laser Technology Key Laboratory of the Ministry of Industry and Information Technology; National University of Defense Technology, Institute of High Energy Laser Technology; Northwest Institute of Nuclear Technology
Publisher:SPIE
Abstract:We report on the recent progress on high power pulsed 2.8 μm Er3+-doped ZBLAN fiber laser through techniques of passively and actively Q-switching in our research group. In passively Q-switched operation, a diode-cladding-pumped mid-infrared passively Q-switched Er3+-doped ZBLAN fiber laser with an average output power of watt-level based on a semiconductor saturable absorber mirror (SESAM) was demonstrated. Stable pulse train was produced at a slope efficient of 17.8% with respect to launched pump power. The maximum average power of 1.01 W at a repetition rate of 146.3 kHz was achieved with a corresponding pulse energy of 6.9 μJ. The maximum peak power was calculated to be 21.9 W. In actively Q-switched operation, a diode-pumped actively Q-switched Er3+-doped ZBLAN fiber laser at 2.8 μm with an optical chopper was reported. The maximum laser pulse energy of up to 130 μJ and a pulse width of 127.3 ns at a repetition rate of 10 kHz with an operating wavelength of 2.78 μm was obtained, yielding the maximum peak power of exceeding 1.1 kW. 2017 SPIE.
Number of references:29
Main heading:Pulsed lasers
Controlled terms:Choppers (circuits) - Fiber lasers - Glass fibers - Infrared devices - Laser mirrors - Laser tissue interaction - Optical pumping - Optically pumped lasers - Plasma interactions - Pulse repetition rate - Q switched lasers - Q switching - Semiconductor diodes - Semiconductor lasers - Semiconductor saturable absorber mirrors
Uncontrolled terms:Actively Q-switched - Average output power - Experimental investigations - High power - Launched pump power - Midinfrared - Operating wavelength - Passively Q-switched
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 744 Lasers - 812.3 Glass - 932.3 Plasma Physics
Numerical data indexing:Energy 1.30e-04J, Energy 6.90e-06J, Frequency 1.00e+04Hz, Frequency 1.46e+05Hz, Percentage 1.78e+01%, Power 1.01e+00W, Power 1.10e+03W, Power 2.19e+01W, Size 2.78e-06m, Size 2.80e-06m, Time 1.27e-07s
DOI:10.1117/12.2267824
Funding details: Number: -, Acronym: SIMTech, Sponsor: Singapore Institute of Manufacturing Technology;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: -, Sponsor: CAS-SAFEA International Partnership Program for Creative Research Teams;Number: 11573058, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: SKLLIM1503, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The authors acknowledge financial support from the CAS/SAFEA International Partnership Program for Creative Research Teams and National Natural Science Foundation of China (Grant No.11573058). This work is also partially supported by the fund of the State Key Laboratory of Laser Interaction with Matter (No. SKLLIM1503). The authors are very grateful to Dr. Biao Sun from Precision Measurements Group (Singapore Institute of Manufacturing Technology, Singapore) and Dr. Xiaohong Hu from State Key Laboratory of Transient Optics and Photonics (Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, China) for fruitful discussions.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<424>
Accession number:20164803060232
Title:Learning Tone Mapping Function for Dehazing
Authors:Lian, Xuhang (1); Pang, Yanwei (1); He, Yuqing (1); Li, Xuelong (2); Yang, Aiping (1)
Author affiliation:(1) School of Electronic Information Engineering, Tianjin University, Tianjin; 300072, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; Shaanxi; 710119, China
Corresponding author:Pang, Yanwei(pyw@tju.edu.cn)
Source title:Cognitive Computation
Abbreviated source title:Cognitive Comput.
Volume:9
Issue:1
Issue date:February 1, 2017
Publication year:2017
Pages:95-114
Language:English
ISSN:18669956
E-ISSN:18669964
Document type:Journal article (JA)
Publisher:Springer New York LLC
Number of references:41
DOI:10.1007/s12559-016-9437-1
Funding details: Number: 2014CB340400, Acronym: -, Sponsor: -;Number: 61372145, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61472274, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61632081, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was partially supported by the National Basic Research Program of China (i.e., 973 Program) (Grant No. 2014CB340400) and the National Natural Science Foundation of China (Grant Nos. 61632081, 61372145, 61472274).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<425>
Accession number:20164603021677
Title:Changes in endogenous hormones and H
Authors:Guo, Bin (1); He, Wei (1); Zhao, Yan (2, 3); Wu, Yandi (1); Fu, Yanping (1); Guo, Juan (4); Wei, Yahui (1)
Author affiliation:(1) Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi’an; Shaanxi; 710069, China; (2) Institute of Quality Standard & Testing Technology for Agro-Products, Key Laboratory of Agro-product Quality and Safety, Chinese Academy of Agricultural Sciences, Beijing, China; (3) Key Laboratory of Agro-product Quality and Safety, Ministry of Agriculture, Beijing, China; (4) Xi’an Institute of Optics and Precision Mechanics (XIOPM), CAS, Xi’an, China
Corresponding author:Wei, Yahui(weiyahui@nwu.edu.cn)
Source title:Plant Cell, Tissue and Organ Culture
Abbreviated source title:Plant Cell Tissue Organ Cult.
Volume:128
Issue:1
Issue date:January 1, 2017
Publication year:2017
Language:English
ISSN:01676857
E-ISSN:15735044
CODEN:PTCEDJ
Document type:Journal article (JA)
Publisher:Springer Netherlands
Abstract:Thidiazuron [N-phenyl-N-(1, 2, 3-thidiazol-5-yl) urea, TDZ] treatment significantly improved shoot morphogenesis of Saussurea involucrata Kar. Et Kir (S. involucrata) leaf explants. The biochemical mechanisms underlying TDZ-induced shoot organogenesis were investigated by measuring endogenous plant growth hormones, H
Number of references:44
Main heading:Plants (botany)
Controlled terms:Endocrinology - Enzymes - Growth kinetics - Hormones - Morphology - Urea
Uncontrolled terms:H2O2 - Plant growth regulators - Saussurea involucrata - Shoot organogenesis - Thidiazuron
Classification code:461.2 Biological Materials and Tissue Engineering - 461.6 Medicine and Pharmacology - 804.1 Organic Compounds - 951 Materials Science
Numerical data indexing:Age 7.67e-02yr, Age 9.59e-02yr
DOI:10.1007/s11240-016-1069-3
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<426>
Accession number:20171403531810
Title:A new compressive sensing video coding framework based on Gaussian mixture model
Authors:Li, Xiangwei (1, 2); Lan, Xuguang (1); Yang, Meng (1); Xue, Jianru (1); Zheng, Nanning (1)
Author affiliation:(1) Institute of Artificial Intelligence and Robotics, Xi'an Jiaotong University, Xi'an; Shaanxi; 710049, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710049, China
Corresponding author:Lan, Xuguang(xglan@mail.xjtu.edu.cn)
Source title:Signal Processing: Image Communication
Abbreviated source title:Signal Process Image Commun
Volume:55
Issue date:July 1, 2017
Publication year:2017
Pages:66-79
Language:English
ISSN:09235965
CODEN:SPICEF
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:In this paper, we specifically design an efficient compressive sensing video (CSV) coding framework for the CSV system, by considering the distribution characteristics of the CSV frame. To explore the spatial redundancy of the CSV, the CSV frame is first divided into blocks and each block is modeled by a Gaussian mixture model (GMM), and then it is compressed by a product vector quantization. We further explore the temporal redundancy of the CSV by encoding the adjacent CSV frames by the differential pulse code modulation technique and the arithmetic encoding technique. Experiment results show that the proposed CSV coding solution maintains low coding complexity, which is required by the CSV system. Meanwhile, it achieves significant BD-PSNR improvement by about 7.13–11.41 dB (or equivalently 51.23–66.96% bitrate savings) compared with four existing video coding solutions, which also have low computational complexity and suit for the CSV system. 2017
Number of references:48
Main heading:Video signal processing
Controlled terms:Compressed sensing - Differential pulse code modulation - Encoding (symbols) - Gaussian distribution - Image coding - Redundancy - Signal encoding - Vector quantization
Uncontrolled terms:Compressive sensing - Distribution characteristics - Encoding techniques - Gaussian Mixture Model - Lossy compressions - Low computational complexity - Temporal redundancy - Vector quantizers
Classification code:716 Telecommunication; Radar, Radio and Television - 723.2 Data Processing and Image Processing - 921.1 Algebra - 922.1 Probability Theory
DOI:10.1016/j.image.2017.03.009
Funding details: Number: 2016YFB1000903, Acronym: -, Sponsor: -;Number: 61573268, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The authors would like to thank the anonymous reviewers for their valuable comments. This work was supported in part by the National Key Research and Development Program of China under grant 2016YFB1000903, and NSFC No. 61573268.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<427>
Accession number:20172003675076
Title:Study of the interaction between graphene and planar terahertz metamaterial with toroidal dipolar resonance
Authors:Chen, Xu (1, 2); Fan, Wenhui (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Fan, Wenhui(fanwh@opt.cn)
Source title:Optics Letters
Abbreviated source title:Opt. Lett.
Volume:42
Issue:10
Issue date:May 15, 2017
Publication year:2017
Pages:2034-2037
Language:English
ISSN:01469592
E-ISSN:15394794
CODEN:OPLEDP
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:A planar terahertz metamaterial consisting of square split ring resonators is proposed, and the excitation of toroidal dipolar resonance is demonstrated. Moreover, we theoretically investigate the strong interaction between graphene and toroidal dipolar resonance of the metamaterial. By varying its Fermi energy, the simulations show that graphene can actively modulate the transmission amplitude of toroidal dipolar resonance and even switch it off. The interaction of the toroidal dipolar resonance with monolayer graphene further highlights the ultrasensitive sensing characteristic of the planar metamaterial, which can be utilized for other graphene-like two-dimensional materials. These intriguing properties of the proposed metamaterial may have potential applications in terahertz modulators and ultrasensitive sensors. 2017 Optical Society of America.
Number of references:31
Main heading:Metamaterials
Controlled terms:Graphene - Resonance
Uncontrolled terms:Dipolar resonances - Sensing characteristics - Square split-ring resonators - Strong interaction - Transmission amplitude - Two-dimensional materials - Ultra sensitives - Ultrasensitive sensors
Classification code:761 Nanotechnology - 804 Chemical Products Generally - 931.1 Mechanics - 951 Materials Science
DOI:10.1364/OL.42.002034
Funding details: Number: J08-029, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: YYYJ-1123-4, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61675230, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC) (61675230); "Hundreds of Talents Programs" of the Chinese Academy of Sciences (CAS) (J08-029, YYYJ-1123-4); CAS-SAFEA International Partnership Program for Creative Research Teams.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<428>
Accession number:20180204627076
Title:Simulation of NLOS (non-line-of-sight) 3D imaging system
Authors:Tan, Jingjing (1, 2); Su, Xiuqin (1); Wu, Jingyao (1, 2); Wei, Zhaoqi (1, 2)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10457
Part number:1 of 1
Issue title:AOPC 2017: Laser Components, Systems, and Applications
Issue date:2017
Publication year:2017
Article number:104571A
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510613959
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Laser Components, Systems, and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:132927
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:This passage studies on theory and scene simulation of NLOS imaging. Based on math and physical properties, a simulation platform is built for a NLOS imaging system, including a femtosecond laser, a scanning galvo system, a lambertian surface, several hidden scenes, an ultrafast photodetector to transfer the intensity of laser echo signal to voltage value and a TCSPC module to produce intensity-time histograms. By the simulation platform on MATLAB, precise imaging of the scenes is accomplished. Results show that multi-path analysis using echo signal intensity versus time provides enough proof to reconstruct 3D geometry of a hidden scene. 2017 SPIE.
Number of references:7
Main heading:MATLAB
Controlled terms:Image reconstruction - Imaging systems - Pulsed laser applications - Regression analysis
Uncontrolled terms:3D reconstruction - Intensity of laser - Lambertian surfaces - Line of Sight - Non-line-of-sight - Scene simulations - Simulation - Simulation platform
Classification code:744.9 Laser Applications - 746 Imaging Techniques - 921 Mathematics - 922.2 Mathematical Statistics
DOI:10.1117/12.2284097
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<429>
Accession number:20172803927384
Title:Bifurcated overtones of one-way localized Fabry-Pérot resonances in parity-time symmetric optical lattices
Authors:Gaafer, Fatma Nafaa (1); Shen, Yaxi (1); Peng, Yugui (1); Wu, Aimin (2); Zhang, Peng (3); Zhu, Xuefeng (1, 2, 4)
Author affiliation:(1) School of Physics, Huazhong University of Science and Technology, Wuhan; 430074, China; (2) State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai; 200050, China; (3) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (4) Innovation Institute, Huazhong University of Science and Technology, Wuhan; 430074, China
Corresponding author:Wu, Aimin(wuaimin@mail.sim.ac.cn)
Source title:Chinese Physics B
Abbreviated source title:Chin. Phys.
Volume:26
Issue:7
Issue date:June 2017
Publication year:2017
Article number:074218
Language:English
ISSN:16741056
E-ISSN:20583834
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:Since the first observation of parity-time (PT) symmetry in optics, varied interesting phenomena have been discovered in both theories and experiments, such as PT phase transition and unidirectional invisibility, which turns PT-symmetric optics into a hotspot in research. Here, we report on the one-way localized FabryPerot (FP) resonance, where a welldesigned PT optical resonator may operate at exceptional points with bidirectional transparency but unidirectional field localization. Overtones of such one-way localized FP resonance can be classified into a blue shifted branch and a red shifted branch. Therefore, the fundamental resonant frequency is not the lowest one. We find that the spatial field distributions of the overtones at the same absolute order are almost the same, even though their frequencies are quite different. 2017 Chinese Physical Society and IOP Publishing Ltd.
Number of references:20
Main heading:Optical lattices
Controlled terms:Crystal lattices - Natural frequencies - Optical materials
Uncontrolled terms:Blue-shifted - Exceptional points - Fabry-Perot - Field localization - Fundamental resonant frequencies - Parity-time symmetries - Spatial fields - Symmetric optics
Classification code:741.3 Optical Devices and Systems - 744.8 Laser Beam Interactions - 933.1.1 Crystal Lattice
DOI:10.1088/1674-1056/26/7/074218
Funding details: Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 11404125, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11674119, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11574389, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Project supported by the National Natural Science Foundation of China (Grant Nos. 11674119, 11404125, and 11574389). X. F. Z acknowledges the financial support from the Bird Nest Plan of HUST, China. P. Z. is supported by One Hundred-Talent Plan of Chinese Academy of Sciences.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<430>
Accession number:20180404671136
Title:A new image fusion and monitored control system based on Raspberry Pi and Yeelink platform
Authors:Gao, Wei (1); Shen, Chao (1); Song, Zongxi (1); Dan, Lijun (1); Wang, Fengtao (1); He, Yuqing (1, 2)
Author affiliation:(1) Space Optics Laboratory, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100039, China
Corresponding author:Shen, Chao
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104622E
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Image fusion has been widely used in medical, computer vision and other fields. However, the traditional based on PC, FPGA and DSP image fusion system cannot satisfy requirements of portable, low power consumption and low cost.Raspberry Pi is a new type of microcomputer based on ARM, compared with traditional image fusion system, Raspberry Pi volume, price and power consumption is very low. With Raspberry Pi as core,and special camera of Raspberry Pi, router, PC, mouse, keyboard hardware, C++, OpenCV software, and Yeelink cloud platform build innovative image fusion system is able to meet small volume, low power and price requirements. Yeelink is a new type of Internet of things, providing access to sensor data, storage and display services. The terminal user can observe required information in real time through local area network. NonSubsampledContourlet Transform (NSCT) with multi-scale, multi-direction, multi-resolution and good shift invariance. Because of down sampling, traditional Contourlet transform will cause Gibbs phenomenon, NSCT can overcome the disadvantage, obtaining better fusion image. This paper makes full use of characteristic of Raspberry Pi and Yeelink, construct a new image fusion and scene monitoring system, images is processed by Wavelet, Contourlet and NSCT algorithms, finally analysis the results. The new system has great research and application value. 2017 SPIE.
Number of references:8
Main heading:Image fusion
Controlled terms:C++ (programming language) - Computer software - Digital storage - Electric power utilization - Medical imaging
Uncontrolled terms:Contourlets - Image fusion systems - Multi-focus - NSCT - Raspberry pi - Wavelet - Yeelink
Classification code:706.1 Electric Power Systems - 722.1 Data Storage, Equipment and Techniques - 723 Computer Software, Data Handling and Applications - 746 Imaging Techniques
DOI:10.1117/12.2284474
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<431>
Accession number:20172603863083
Title:Epitaxial Lift-Off of Centimeter-Scaled Spinel Ferrite Oxide Thin Films for Flexible Electronics
Authors:Shen, Lvkang (1); Wu, Liang (2); Sheng, Quan (2); Ma, Chunrui (3); Zhang, Yong (1); Lu, Lu (1); Ma, Ji (4); Ma, Jing (4); Bian, Jihong (5); Yang, Yaodong (5); Chen, Aiping (6); Lu, Xiaoli (7); Liu, Ming (1); Wang, Hong (1); Jia, Chun-Lin (1, 8)
Author affiliation:(1) School of Microelectronics and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an; 710049, China; (2) College of Precision Instrument and Optoelectronic Engineering, Tianjin University, Key Laboratory of Optoelectronic Information and Technology (Ministry of Education), Tianjin; 300072, China; (3) State Key Laboratory for Mechanical Behavior of Materials and School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; (4) State Key Laboratory of New Ceramics and Fine Processing & School of Materials Science and Engineering, Tsinghua University, Beijing; 100084, China; (5) Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an; 710049, China; (6) Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos; NM; 87545, United States; (7) State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi'an; 710071, China; (8) Ernst Ruska Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich, Jülich; D-52425, Germany
Corresponding author:Ma, Chunrui(chunrui.ma@xjtu.edu.cn)
Source title:Advanced Materials
Abbreviated source title:Adv Mater
Volume:29
Issue:33
Issue date:September 6, 2017
Publication year:2017
Article number:1702411
Language:English
ISSN:09359648
E-ISSN:15214095
CODEN:ADVMEW
Document type:Journal article (JA)
Publisher:Wiley-VCH Verlag
Abstract:Mechanical flexibility of electronic devices has attracted much attention from research due to the great demand in practical applications and rich commercial value. Integration of functional oxide materials in flexible polymer materials has proven an effective way to achieve flexibility of functional electronic devices. However, the chemical and mechanical incompatibilities at the interfaces of dissimilar materials make it still a big challenge to synthesize high-quality single-crystalline oxide thin film directly on flexible polymer substrates. This study reports an improved method that is employed to successfully transfer a centimeter-scaled single-crystalline LiFe
Number of references:36
Main heading:Thin films
Controlled terms:Bending tests - Characterization - Crystalline materials - Dissimilar materials - Flexible electronics - Interfaces (materials) - Iron compounds - Lithium compounds - Magnetism - Oxide films - Substrates - Thermoelectric equipment - Thin film circuits
Uncontrolled terms:Flexible device - Flexible polymer substrates - free-standing - Functional oxides - Mechanical flexibility - Polyimide substrate - spinel - Structural characterization
Classification code:422 Strength of Building Materials; Test Equipment and Methods - 615.4 Thermoelectric Energy - 701.2 Magnetism: Basic Concepts and Phenomena - 714.2 Semiconductor Devices and Integrated Circuits - 715 Electronic Equipment, General Purpose and Industrial - 933.1 Crystalline Solids - 951 Materials Science
DOI:10.1002/adma.201702411
Funding details: Number: 2015CB654603, Acronym: -, Sponsor: -;Number: 15JCQNJC02200, Acronym: -, Sponsor: Natural Science Foundation of Tianjin City;Number: 51390472, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 2015CB654903, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 2015M582649, Acronym: -, Sponsor: China Postdoctoral Science Foundation;
Funding text:L.S, L.W. and Q.S. contributed equally to this work. L.S., Y.Z., L.L., M.L., and C.J. acknowledge the support by National Science Foundation of China (No. 51390472) and National ?973? projects of China (No. 2015CB654903). M.L. and C.M. acknowledge the support by Fundamental Research Funds for the Central Universities and China Postdoctoral Science Foundation (No. 2015M582649). H.W. acknowledges the support from National Basic Research Program of China (No. 2015CB654603). L.W. and Q.S. acknowledge the support by Natural Science Foundation of Tianjin (No. 15JCQNJC02200).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<432>
Accession number:20180404671592
Title:Integrated Kerr comb-based reconfigurable transversal differentiator for microwave photonic signal processing
Authors:Xu, Xingyuan (1); Wu, Jiayang (1); Shoeiby, Mehrdad (2); Nguyen, Thach G. (2); Chu, Sai T. (3); Little, Brent E. (4); Morandotti, Roberto (5, 6, 7); Mitchell, Arnan (2); Moss, David J. (1)
Author affiliation:(1) Centre for Micro-Photonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (2) School of Engineering, RMIT University, Melbourne; VIC; 3000, Australia; (3) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, Hong Kong; (4) Xi'an Institute of Optics and Precision Mechanics Precision Mechanics, CAS, Xi'an, China; (5) INRS-énergie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (6) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (7) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10456
Part number:1 of 1
Issue title:Nanophotonics Australasia 2017
Issue date:2017
Publication year:2017
Article number:104560A
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510613935
Document type:Conference article (CA)
Conference name:Nanophotonics Australasia 2017
Conference date:December 10, 2017 - December 13, 2017
Conference location:Melbourne, VIC, Australia
Conference code:133393
Sponsor:AXT Inc.; Lastek; neaspec GmbH; PriTel, Inc.; Swinburne University of Technology; WITec
Publisher:SPIE
Abstract:An arbitrary-order intensity differentiator for high-order microwave signal differentiation is proposed and experimentally demonstrated on a versatile transversal microwave photonic signal processing platform based on integrated Kerr combs. With a CMOS-compatible nonlinear micro-ring resonator, high quality Kerr combs with broad bandwidth and large frequency spacings are generated, enabling a larger number of taps and an increased Nyquist zone. By programming and shaping individual comb lines' power, calculated tap weights are realized, thus achieving a versatile microwave photonic signal processing platform. Arbitrary-order intensity differentiation is demonstrated on the platform. The RF responses are experimentally characterized, and systems demonstrations for Gaussian input signals are also performed. COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
Number of references:46
Main heading:Signal processing
Controlled terms:Communication channels (information theory) - Microwaves - Nanophotonics - Optical resonators - Optical signal processing
Uncontrolled terms:Arbitrary order - Broad bandwidths - Differentiators - Frequency spacing - Microring resonator - Microwave Photonics - Microwave signals - Optical frequency combs
Classification code:711 Electromagnetic Waves - 716.1 Information Theory and Signal Processing - 741.1 Light/Optics - 741.3 Optical Devices and Systems
DOI:10.1117/12.2282642
Funding details: Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;Number: -, Acronym: -, Sponsor: Canada Research Chairs;Number: DP150104327, Acronym: -, Sponsor: -;Number: -, Acronym: NSERC, Sponsor: Natural Sciences and Engineering Research Council of Canada;Number: 074-U 01, Acronym: -, Sponsor: Government Council on Grants, Russian Federation;
Funding text:This work was supported by the Australian Research Council Discovery Projects Program (No. DP150104327). RM acknowledges support by Natural Sciences and Engineering Research Council of Canada (NSERC) through the Strategic, Discovery and Acceleration Grants Schemes, by the MESI PSR-SIIRI Initiative in Quebec, and by the Canada Research Chair Program. He also acknowledges additional support by the Government of the Russian Federation through the ITMO Fellowship and Professorship Program (grant 074-U 01) by the 1000 Talents Sichuan Program.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<433>
Accession number:20171803621522
Title:A method to measure the modulation transfer function of Bayer filter color camera
Authors:Duan, Ya-Xuan (1, 2); Liu, Shang-Kuo (1, 2); Chen, Yong-Quan (1); Xue, Xun (1); Zhao, Jian-Ke (1); Gao, Li-Min (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Duan, Ya-Xuan(6216366@163.com)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:7
Issue date:April 5, 2017
Publication year:2017
Article number:074204
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:With the development of optoelectronic technologies, color cameras have been widely exploited in space remote sensing, earth observations from space, environmental monitoring, urban construction, and many other fields. Currently, most commercial color cameras use a single charge coupled device (CCD) or complementary metal-oxide-semiconductor (CMOS) sensor that has a Bayer color filter array (CFA) on its pixel surface to obtain red (R), green (G), or blue (B) samples. As a way of evaluating imaging quality, modulation transfer function (MTF) can provide a comprehensive and objective metric for camera imaging performance. In the conventional knife-edge method for color camera MTF measurement, a linear uniform sampling of the edge spread function (ESF) must be completed before a fast Fourier transform (FFT) can be applied. As the sampling rate becomes large, the number of pixel points on the line which is parallel to the knife-edge become less. So taking average of the pixel points to obtain ESF can be strongly affected by the noise of sensor. Therefore it is necessary to balance the influences of sampling rate and sensor noise on the MTF measurement, and the recommended sampling rate is 4-6. When the tilt angle of knife-edge has an error, the nonuniform sampling ESF can be obtained by the slanted knife-edge method. This leads to a variation in the results of the camera MTF on a spatial frequency scale and early cut-off. The best MTF results of camera can be obtained by rotating knife-edge, calculating MTF power under different tilt angles of knife-edge, and finding the maximum MTF power. And we propose an algorithm for Bayer filter color camera MTF measurement. The algorithm processing includes extracting R, G, B colors of knife-edge images; projection; differential operation; Hanning window filtration; FFT; correction; weighting combination of R, G, B colors MTF; MTF power calculation; optimal tilt angle of knife-edge estimation. To verify the accuracy of the proposed method, the weighting response factors of R, G, B colors are calibrated and an experimental setup for color camera MTF measurement is established. The knife-edge target is rotated in angle steps of 0.02°, and the MTF results are calculated under different tilt angles of knife-edge within ±0.1° surrounding the estimate position by the proposed algorithm. The maximum differences of MTF results between the proposed method and fringe target method are 0.061 (Nyquist frequency f
Number of references:29
Page count:11
Main heading:Optical transfer function
Controlled terms:Bandpass filters - Cameras - Charge coupled devices - CMOS integrated circuits - Color - Dynamic frequency scaling - Earth (planet) - Edge detection - Environmental technology - Fast Fourier transforms - Metals - Modulation - MOS devices - Oxide semiconductors - Pixels - Remote sensing - Transfer functions - X ray radiography
Uncontrolled terms:Bayer color filter array - Color cameras - Complementary metal-oxide-semiconductor sensor (CMOS) - Environmental Monitoring - Knife edge - Modulation transfer function (MTF) - Optoelectronic technology - Precision
Classification code:454 Environmental Engineering - 525.3 Energy Utilization - 703.2 Electric Filters - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 742.2 Photographic Equipment - 921 Mathematics - 921.3 Mathematical Transformations
DOI:10.7498/aps.66.074204
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<434>
Accession number:20172803923550
Title:A diffuse plasma jet generated from the preexisting discharge filament at atmospheric pressure
Authors:Li, Jing (1, 2, 3); Xu, Yonggang (1, 2); Zhang, Tongyi (1, 2); Tang, Jie (1, 2); Wang, Yishan (1, 2); Zhao, Wei (1, 2); Duan, Yixiang (1, 2, 4)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Faculty of Mathematics and Physics, Huaiyin Institute of Technology, Huaian; 223003, China; (4) Research Center of Analytical Instrumentation, College of Life Sciences, Sichuan University, Chengdu; 610064, China
Corresponding author:Tang, Jie(tangjie1979@opt.ac.cn)
Source title:Journal of Applied Physics
Abbreviated source title:J Appl Phys
Volume:122
Issue:1
Issue date:July 7, 2017
Publication year:2017
Article number:013301
Language:English
ISSN:00218979
E-ISSN:10897550
CODEN:JAPIAU
Document type:Journal article (JA)
Publisher:American Institute of Physics Inc.
Abstract:A diffuse plasma jet was realized by expanding the preexisting argon filamentary discharge into a diffuse one at atmospheric pressure. Examination of emission spectra from the plasma jet shows that the emission intensities of OH and Ar increase with the argon flow near the quartz tube nozzle, while the N
Number of references:61
Main heading:Electric discharges
Controlled terms:Argon - Atmospheric pressure - Charged particles - Dielectric materials - Emission spectroscopy - Nozzles - Plasma jets - Poisson distribution - Poisson equation
Uncontrolled terms:Cylindrical dielectric barrier discharges - Electric field distributions - Emission intensity - Emission spectrums - Filamentary discharges - Positive surface charge - Quenching mechanisms - Spectral emission
Classification code:443.1 Atmospheric Properties - 701.1 Electricity: Basic Concepts and Phenomena - 708.1 Dielectric Materials - 804 Chemical Products Generally - 921.2 Calculus - 922.1 Probability Theory - 932.3 Plasma Physics
Numerical data indexing:Time 4.00e+00s
DOI:10.1063/1.4989975
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<435>
Accession number:20174104242952
Title:Bilateral K - Means algorithm for fast co-clustering
Authors:Han, Junwei (1); Song, Kun (1); Nie, Feiping (1, 2); Li, Xuelong (3)
Author affiliation:(1) School of Automation, Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China; (2) School of Computer Science, Center for OPTIMAL, Northwestern Polytechnical University, Xi'an; 710072, China; (3) Center for OPTIMAL, State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Han, Junwei(junweihan2010@gmail.com)
Source title:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Abbreviated source title:AAAI Conf. Artif. Intell., AAAI
Part number:1 of 1
Issue title:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Issue date:2017
Publication year:2017
Pages:1969-1975
Language:English
Document type:Conference article (CA)
Conference name:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Conference date:February 4, 2017 - February 10, 2017
Conference location:San Francisco, CA, United states
Conference code:130407
Sponsor:Amazon; Artificial Intelligence; Baidu; et al.; IBM; Tencent
Publisher:AAAI press
Abstract:With the development of the information technology, the amount of data, e.g. text, image and video, has been increased rapidly. Efficiently clustering those large scale data sets is a challenge. To address this problem, this paper proposes a novel co-clustering method named bilateral k-means algorithm (BKM) for fast co-clustering. Different from traditional k-means algorithms, the proposed method has two indicator matrices P and Q and a diagonal matrix S to be solved, which represent the cluster memberships of samples and features, and the co-cluster centres, respectively. Therefore, it could implement different clustering tasks on the samples and features simultaneously. We also introduce an effective approach to solve the proposed method, which involves less multiplication. The computational complexity is analyzed. Extensive experiments on various types of data sets are conducted. Compared with the state-of-the-art clustering methods, the proposed BKM not only has faster computational speed, but also achieves promising clustering results.
Copyright ？ 2017, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved.
Number of references:23
Main heading:Clustering algorithms
Controlled terms:Artificial intelligence - Cluster analysis - Matrix algebra
Uncontrolled terms:Cluster memberships - Clustering methods - Clustering results - Computational speed - Diagonal matrices - Effective approaches - k-Means algorithm - Large scale data sets
Classification code:723 Computer Software, Data Handling and Applications - 723.4 Artificial Intelligence - 903.1 Information Sources and Analysis - 921.1 Algebra
Funding details: Number: 61473231, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61522207, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Science Foundation of China under Grant 61473231 and Grant 61522207.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<436>
Accession number:20171603576228
Title:Single Image super-resolution restoration algorithm from external example to internal self-similarity
Authors:Zheng, Xiangtao (1, 2); Yuan, Yuan (1); Lu, Xiaoqiang (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (2) University of the Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Lu, Xiaoqiang(luxq666666@gmail.com)
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:37
Issue:3
Issue date:March 10, 2017
Publication year:2017
Article number:0318006
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Single image super-resolution (SR) restoration is an ill-posed inverse problem, in which regularization restriction is done with image priori knowledge. One single image SR method is proposed which simultaneously taking external example and internal self-similarity into account. Here the external knowledge is learned by convolutional neural network from external low-resolution-high-resolution image pairs, while the internal prior is utilized by cluster and low-rank approximation. The experimental results show that the proposed method outperforms many other existing super-resolution methods in recovery effect and robustness. 2017, Chinese Lasers Press. All right reserved.
Number of references:18
Page count:7
Main heading:Image reconstruction
Controlled terms:Approximation theory - Convolution - Image processing - Inverse problems - Neural networks - Optical resolving power - Restoration
Uncontrolled terms:Convolutional neural network - Example-based methods - High resolution image - ILL-posed inverse problem - Low rank approximations - Self-similarities - Super resolution - Superresolution methods
Classification code:716.1 Information Theory and Signal Processing - 741.1 Light/Optics - 921.6 Numerical Methods
DOI:10.3788/AOS201737.0318006
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<437>
Accession number:20180104611884
Title:Type II microcomb generation in a filter-driven four wave mixing laser
Authors:Cooper, Andrew (1); Bao, Hualong (1); Chu, Sai T. (2); Moss, Dave J. (3); Morandotti, Roberto (4); Little, Brent E. (5); Peccianti, Marco (1); Pasquazi, Alessia (1)
Author affiliation:(1) Emergent Photonics (Epic) Lab, Dept. of Physics and Astronomy, University of Sussex, BN1 9QH, United Kingdom; (2) City University of Hong Kong, Tat Chee Avenue, Hong Kong; (3) Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (4) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (5) Xi'an Institute of Optics, Precision Mechanics of CAS, China
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F82-CLEO_Europe 2017
Part number:1 of 1
Issue title:The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
Conference date:June 25, 2017 - June 29, 2017
Conference location:Munich, Germany
Conference code:139018
Publisher:OSA - The Optical Society
Number of references:5
Page count:1
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<438>
Accession number:20180104612714
Title:Frequency comb assisted characterisation of a filter-driven four wave mixing laser
Authors:Cooper, Andrew (1); Bao, Hualong (1); Rowley, Maxwell (1); Chu, Sai T. (2); Moss, Dave J. (3); Morandotti, Roberto (4); Little, Brent E. (5); Peccianti, Marco (1); Pasquazi, Alessia (1)
Author affiliation:(1) Emergent Photonics (Epic) Lab, Dept. of Physics and Astronomy, University of Sussex, BN1 9QH, United Kingdom; (2) City University of Hong Kong, Tat Chee Avenue, Hong Kong; (3) Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (4) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (5) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F82-CLEO_Europe 2017
Part number:1 of 1
Issue title:The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
Conference date:June 25, 2017 - June 29, 2017
Conference location:Munich, Germany
Conference code:139018
Publisher:OSA - The Optical Society
Number of references:4
Page count:1
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<439>
Accession number:20181204933027
Title:Pulsed quantum frequency combs from an actively mode-locked intra-cavity generation scheme
Authors:Roztocki, Piotr (1); Kues, Michael (1, 2); Reimer, Christian (1); Wetzel, Benjamin (1, 3); Little, Brent E. (4); Chu, Sai T. (5); Moss, David J. (1, 6); Morandotti, Roberto (1, 7, 8)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh; EH14 4AS, United Kingdom; (4) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an, China; (5) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong; (6) Center for Microphotonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (7) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (8) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Corresponding author:Kues, Michael(michael.kues@emt.inrs.ca)
Source title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Abbreviated source title:Conf. Lasers. Electr.-Opt., Proc.
Volume:2017-January
Part number:1 of 1
Issue title:2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings
Issue date:October 25, 2017
Publication year:2017
Pages:1-2
Language:English
ISBN-13:9781943580279
Document type:Conference article (CA)
Conference name:2017 Conference on Lasers and Electro-Optics, CLEO 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:131854
Sponsor:AdValue Photonics; American Elements - The Materials Science Company; Coherent; et al.; KMLabs - Leading in Ultrafast; MKS
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We introduce an intra-cavity actively mode-locked excitation scheme for nonlinear microring resonators that removes the need for external laser excitation in the generation of pulsed two-photon frequency combs. We found a heralded anti-bunching dip of 0.245 and maximum coincidence-to-accidental ratio of 110 for the generated photon pairs. 2017 IEEE.
Number of references:6
Main heading:Pulsed lasers
Controlled terms:Laser excitation - Locks (fasteners) - Photons
Uncontrolled terms:Anti-bunching - Excitation schemes - Frequency combs - Intracavities - Microring resonator - Mode-locked - Photon pairs - Two photon
Classification code:744.1 Lasers, General - 744.9 Laser Applications - 931.3 Atomic and Molecular Physics
DOI:10.1364/CLEO_AT.2017.FW4E.4
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<440>
Accession number:20181404984624
Title:Long period fiber grating around the dispersion turning point fabricated with a femtosecond laser
Authors:Shen, Fangcheng (1); Zhou, Kaiming (2, 3); Zhang, Lin (2); Shu, Xuewen (1)
Author affiliation:(1) Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan; 430074, China; (2) Aston Institute of Photonic Technologies, Aston University, Birmingham; B4 7ET, United Kingdom; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Corresponding author:Shu, Xuewen(xshu@hust.edu.cn)
Source title:Asia Communications and Photonics Conference, ACP
Abbreviated source title:Asia Commun. Photonics Conf.
Volume:2017-August
Part number:1 of 1
Issue title:Asia Communications and Photonics Conference, ACP 2017
Issue date:August 9, 2017
Publication year:2017
Article number:Su2A.104
Language:English
ISSN:2162108X
ISBN-13:9781943580347
Document type:Conference article (CA)
Conference name:2017 Asia Communications and Photonics Conference, ACP 2017
Conference date:November 10, 2017 - November 13, 2017
Conference location:368 Huanshi Dong Lu, Guangzhou, Guangdong, China
Conference code:134305
Sponsor:CIC; COS; IEEE Photonics Society; OSA; SPIE
Publisher:OSA - The Optical Society
Abstract:Long period fiber grating around the dispersion turning point, which exhibits high sensitivity to measurands such as temperature and refractive index, is fabricated in single mode fiber with a femtosecond laser for the first time. OSA 2017.
Number of references:5
Main heading:Diffraction gratings
Controlled terms:Dispersion (waves) - Fabrication - Femtosecond lasers - Photonics - Refractive index - Single mode fibers
Uncontrolled terms:High sensitivity - Long period fiber grating - Turning points
Classification code:741 Light, Optics and Optical Devices
DOI:10.1364/ACPC.2017.Su2A.104
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<441>
Accession number:20173904205120
Title:Inversion of low dynamic vehicle shape and dimension information using non-resolved photometric data in near space
Authors:Jing, Nan (1, 2); Li, Chuang (1); Zhong, Pei-Feng (1, 2); Chong, Ya-Qin (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Li, Chuang(lichuang@opt.ac.cn)
Source title:Guangxue Jingmi Gongcheng/Optics and Precision Engineering
Abbreviated source title:Guangxue Jingmi Gongcheng
Volume:25
Issue:7
Issue date:July 1, 2017
Publication year:2017
Pages:1738-1747
Language:Chinese
ISSN:1004924X
CODEN:GJGOF4
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences
Abstract:In order to obtain the shape and dimension information of low dynamic non-resolved object in near space,an experiment on optical detection of high altitude balloon was performed to investigate how to calculate object shape and dimension information from photometric data. In the experiment, experimental images captured by the ground-based detector were processed by aperture photometry technology, thus obtaining non-resolved photometric data. During the inversion process, two shape representation methods as well as three sets of regularization functions were adopted to describe and restrict object shape, respectively. The methods contained spherical harmonics function and subdivision control points, and the functions involved spherical harmonics regularization function, triangle panel regularization function and physical characteristics regularization function. Based on the Fourier transform of photometric data and model data of the shape representation methods, the shape and dimension information of the non-resolved object was inversed by the Point Spread Function (PSF) of the optical system. The result shows that the prominent features presented in the object shape are similar, which indicates that the features are extracted from the photometric data. The relative errors of object equivalent diameter inversed by spherical harmonics function and subdivision control points are 11.3% and 22.6%, and the relative errors of object length are 11.6% and 21.8%, respectively. The comparison of the relative errors proves that the shape representation method based on the spherical harmonics function has smaller error and is more suitable to represent the low dynamic object shape. 2017, Science Press. All right reserved.
Number of references:21
Main heading:Harmonic functions
Controlled terms:Errors - Harmonic analysis - Optical systems - Optical transfer function - Photometry - Spheres
Uncontrolled terms:Ground-based detectors - High-altitude balloons - Inversion - Near space - Object shape - Photometric data - Physical characteristics - Regularization function
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 921 Mathematics - 921.6 Numerical Methods - 941.4 Optical Variables Measurements
Numerical data indexing:Percentage 1.13e+01%, Percentage 1.16e+01%, Percentage 2.18e+01%, Percentage 2.26e+01%
DOI:10.3788/OPE.20172507.1738
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<442>
Accession number:20174804476165
Title:A neighborhood vector principal component analysis method for small defect target detection
Authors:Wang, Zhengzhou (1, 2, 3); Yin, Qinye (1); Kou, Jingwei (3); Xia, Yanwen (4); Hu, Bingliang (3)
Author affiliation:(1) School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Xi'an Institute of Optics and Precision Mechanics Chinese Academy of Science, Xi'an; 710119, China; (4) Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang; 621900, China
Corresponding author:Yin, Qinye(qyyin@mail.xjtu.edu.cn)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F70-PIBM 2017
Part number:1 of 1
Issue title:International Conference on Photonics and Imaging in Biology and Medicine, PIBM 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:International Conference on Photonics and Imaging in Biology and Medicine, PIBM 2017
Conference date:September 26, 2017 - September 28, 2017
Conference location:Suzhou, China
Conference code:137728
Publisher:OSA - The Optical Society
Abstract:The Local Contrast Method (LCM) has many advantages for detecting large defect targets in optical components. However, it often suffers from low performance when the defect target is located in a local bright region, which reduces the accuracy of defect detection. Here, we propose a new Neighborhood Vector Principal Component Analysis (NVPCA) method for small defect target detection. The main idea is that each pixel and its 8 neighbors in the damage image are treated as a column vector for the application of any operations, and a 9-dimensional data cube is reconstructed using the vectors of all pixels. The main information of the data cube is concentrated in the first dimension, therein being the principal component analysis (PCA) transform. When the NVPCA image is again processed using the LCM, a substantial image enhancement is obtained. After extraction of the features of the enhanced image, the important statistical information for each defect target, including coordinates, size, area, and energy integral, can be obtained. Because the defect targets are separated using a region-growing method, this method offers excellent precision in the detection of small defect targets with a size of 1 pixel. In addition, the method can detect defect targets located in local bright regions. 2017 OSA.
Number of references:23
Page count:21
Main heading:Principal component analysis
Controlled terms:Defects - Image enhancement - Photonics - Pixels - Vectors
Uncontrolled terms:Defect detection - Local contrast - NVPCA - Optical components - Principal component analysis method - Principal component analysis transforms - Region growing methods - Statistical information
Classification code:741.1 Light/Optics - 921.1 Algebra - 922.2 Mathematical Statistics - 951 Materials Science
DOI:10.1364/PIBM.2017.W3A.8
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<443>
Accession number:20161002045074
Title:Template deformation-based 3-D reconstruction of full human body scans from low-cost depth cameras
Authors:Liu, Zhenbao (1); Huang, Jinxin (1); Bu, Shuhui (1); Han, Junwei (1); Tang, Xiaojun (1); Li, Xuelong (2)
Author affiliation:(1) Northwestern Polytechnical University, Xi'an; 710072, China; (2) Center for OPTical IMagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Xi'an; 710119, China
Corresponding author:Liu, Zhenbao(liuzhenbao@nwpu.edu.cn)
Source title:IEEE Transactions on Cybernetics
Abbreviated source title:IEEE Trans. Cybern.
Volume:47
Issue:3
Issue date:March 2017
Publication year:2017
Pages:695-708
Article number:7416183
Language:English
ISSN:21682267
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Full human body shape scans provide valuable data for a variety of applications including anthropometric surveying, clothing design, human-factors engineering, health, and entertainment. However, the high price, large volume, and difficulty of operating professional 3-D scanners preclude their use in home entertainment. Recently, portable low-cost red green blue-depth cameras such as the Kinect have become popular for computer vision tasks. However, the infrared mechanism of this type of camera leads to noisy and incomplete depth images. We construct a stereo full-body scanning environment composed of multiple depth cameras and propose a novel registration algorithm. Our algorithm determines a segment constrained correspondence for two neighboring views, integrating them using rigid transformation. Furthermore, it aligns all of the views based on uniform error distribution. The generated 3-D mesh model is typically sparse, noisy, and even with holes, which makes it lose surface details. To address this, we introduce a geometric and topological fitting prior in the form of a professionally designed high-resolution template model. We formulate a template deformation optimization problem to fit the high-resolution model to the low-quality scan. Its solution overcomes the obstacles posed by different poses, varying body details, and surface noise. The entire process is free of body and template markers, fully automatic, and achieves satisfactory reconstruction results. 2013 IEEE.
Number of references:67
Main heading:Image reconstruction
Controlled terms:Cameras - Costs - Deformation - Green computing - Hosiery manufacture - Human engineering - Stereo image processing - Topology
Uncontrolled terms:3D reconstruction - Depth camera - High-resolution models - Human bodies - Multiple depth cameras - Optimization problems - Registration algorithms - Rigid transformations
Classification code:461.4 Ergonomics and Human Factors Engineering - 723.2 Data Processing and Image Processing - 742.2 Photographic Equipment - 819.5 Textile Products and Processing - 911 Cost and Value Engineering; Industrial Economics - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
DOI:10.1109/TCYB.2016.2524406
Funding details: Number: SAMC14-JS-15-045, Acronym: -, Sponsor: -;Number: DMETKF2015009, Acronym: -, Sponsor: -;Number: 310201401-JCQ01009, Acronym: NPU, Sponsor: Northwestern Polytechnical University;Number: 310201401-JCQ01012, Acronym: NPU, Sponsor: Northwestern Polytechnical University;Number: A1509, Acronym: ZJU, Sponsor: Zhejiang University;Number: 2015JM6344, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 61003137, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61573284, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61473231, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61522207, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61003137, Grant 61473231, Grant 61573284, and Grant 61522207, in part by the NorthWestern Polytechnical University Basic Research Fund under Grant 310201401-JCQ01009 and Grant 310201401-JCQ01012, in part by the Open Fund of the State Key Laboratory of Computer Aided Design & Computer Graphics in Zhejiang University under Grant A1509, in part by the Open Research Foundation of the State Key Laboratory of Digital Manufacturing Equipment and Technology in the Huazhong University of Science and Technology under Grant DMETKF2015009, in part by the Fund of the National Engineering and Research Center for Commercial Aircraft Manufacturing under Grant SAMC14-JS-15-045, and in part by the Shaanxi Natural Science Fund under Grant 2015JM6344.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<444>
Accession number:20173904210707
Title:System calibration method for Fourier ptychographic microscopy
Authors:Pan, An (1, 2); Zhang, Yan (1, 2); Zhao, Tianyu (1, 2); Wang, Zhaojun (1, 2); Dan, Dan (1, 2); Lei, Ming (1); Yao, Baoli (1)
Author affiliation:(1) Chinese Academy of Sciences, Xi'An Institute of Optics and Precision Mechanics, State Key Laboratory of Transient Optics and Photonics, Xi'an, Shaanxi, China; (2) University of Chinese Academy of Sciences, Beijing, China
Corresponding author:Yao, Baoli(yaobl@opt.ac.cn)
Source title:Journal of Biomedical Optics
Abbreviated source title:J Biomed Opt
Volume:22
Issue:9
Issue date:September 1, 2017
Publication year:2017
Article number:096005
Language:English
ISSN:10833668
E-ISSN:15602281
CODEN:JBOPFO
Document type:Journal article (JA)
Publisher:SPIE
Abstract:Fourier ptychographic microscopy (FPM) is a recently proposed computational imaging technique with both high-resolution and wide field of view. In current FPM imaging platforms, systematic error sources come from aberrations, light-emitting diode (LED) intensity fluctuation, parameter imperfections, and noise, all of which may severely corrupt the reconstruction results with similar artifacts. Therefore, it would be unlikely to distinguish the dominating error from these degraded reconstructions without any preknowledge. In addition, systematic error is generally a mixture of various error sources in the real situation, and it cannot be separated due to their mutual restriction and conversion. To this end, we report a system calibration procedure, termed SC-FPM, to calibrate the mixed systematic errors simultaneously from an overall perspective, based on the simulated annealing algorithm, the LED intensity correction method, the nonlinear regression process, and the adaptive step-size strategy, which involves the evaluation of an error metric at each iteration step, followed by the re-estimation of accurate parameters. The performance achieved both in simulations and experiments demonstrates that the proposed method outperforms other state-of-the-art algorithms. The reported system calibration scheme improves the robustness of FPM, relaxes the experiment conditions, and does not require any preknowledge, which makes the FPM more pragmatic. 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).
Number of references:23
Main heading:Iterative methods
Controlled terms:Birefringence - Calibration - Fourier transforms - Light emitting diodes - Simulated annealing - Systematic errors
Uncontrolled terms:Computational imaging - Fourier - Intensity fluctuations - Light emitting diode (LED) - Non-linear regression - Phase retrieval - Simulated annealing algorithms - State-of-the-art algorithms
Classification code:537.1 Heat Treatment Processes - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 921.3 Mathematical Transformations - 921.6 Numerical Methods
DOI:10.1117/1.JBO.22.9.096005
Funding details: Number: 61377008, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 81427802, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The authors acknowledge the National Natural Science Foundation of China (NSFC) (61377008 and 81427802).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<445>
Accession number:20171003422792
Title:Research on segmented mirror position error of optical system based on ZEMAX
Authors:Wang, Chenchen (1, 2); Zou, Gangyi (1, 2); Li, Ruichang (1, 2); Cui, Jian (3); Fan, Xuewu (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) People's Public Security University of China, Beijing; 100049, China
Corresponding author:Wang, Chenchen(wangchenchen@opt.ac.cn)
Source title:Optik
Abbreviated source title:Optik
Volume:137
Issue date:May 1, 2017
Publication year:2017
Pages:79-84
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Elsevier GmbH
Abstract:We have modeled a segmented mirror optical system by software ZEMAX, and analyzed influence of segmented mirror's position error to the optical system imaging for the first time to author's best knowledge. The primary mirror is composed of 18 segmented mirrors. By adjusting each one's position error of six freedoms, we get six relationship curves between position error and the optical system's image quality. The relationship curves show that some have different wave-front error RMS values when segmented mirrors have same position errors. The middle mirrors are sensitive to the movement along X axis direction, and the outer ones are sensitive to the movement along Y axis direction. The middle ones and outer ones are all sensitive to the tilt error, especially tilt along X, Y axis. 2017 Elsevier GmbH
Number of references:13
Main heading:Optical systems
Controlled terms:Errors - Image analysis - Infrared imaging - Mirrors - Modulation - Optical design - Thermography (imaging) - Wavefronts
Uncontrolled terms:Geometric optical designs - Position errors - Primary mirrors - RMS values - Segmented mirror - Six freedoms - Tilt errors - Wavefront errors
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.1 Photography - 746 Imaging Techniques
DOI:10.1016/j.ijleo.2017.02.082
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<446>
Accession number:20180404670985
Title:An target tracking of structure algorithm based on skeleton and corner for extended objects
Authors:Zhai, Bo (1); He, Tian-Bing (1); Qu, You-Shan (1); Xu, Fan (1); Ge, Yong-Jiao (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinses Academy of Sciences, Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:1046225
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Due to extended objects are influenced by occluded and blurred edge, the stability of target tracking is not good by the figure algorithms or the corner algorithms. In order to solute this problem, an improved multi-resolution(MR) fuzzy clustering algorithm based on Markov random field(MRF) is firstly used to segment the candidate targets of the extended objects from the observed images, then a new proposed target tracking structure algorithm, based on the stabilization of the extended objects' skeletons and the partially unoccluded and unblurred edge feature of the extended objects, is applied to extract the skeletons, corners, intersection points and their spatial location relationship of the candidate extended targets to detemine the true tracking target or not. The experimental results show that the established algorithm can effectively complete the segmentation and extraction of the partially occluded and blurred extended objects with a very satisfied reliability and robustness. 2017 SPIE.
Number of references:11
Main heading:Clustering algorithms
Controlled terms:C (programming language) - Clutter (information theory) - Edge detection - Fuzzy clustering - Image enhancement - Image segmentation - Markov processes - Musculoskeletal system - Target tracking
Uncontrolled terms:Corner detection - Extended objects - Fuzzy C mean - Object Tracking - Skeleton
Classification code:461.3 Biomechanics, Bionics and Biomimetics - 716.1 Information Theory and Signal Processing - 723 Computer Software, Data Handling and Applications - 723.1.1 Computer Programming Languages - 903.1 Information Sources and Analysis - 922.1 Probability Theory
DOI:10.1117/12.2284381
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<447>
Accession number:20180404671048
Title:Fast triangle star identification algorithm based on uncertain sign
Authors:Wei, Xin (1, 2); Wen, Desheng (1); Song, Zongxi (1)
Author affiliation:(1) Space Optics Laboratory, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Wei, Xin
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104624U
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:As a fine star-field identification algorithm, triangle algorithm is used far and wide currently, but there are some defects in triangle algorithm, such as low search efficiency and high mismatches probability. In allusion to these defects, a new triangle algorithm based on uncertain sign is presented. This algorithm extracted F and R features of star triangle, and then built a guidance characteristic catalogue which was searched by means of k-vector, promoting the search efficiency, moreover, in order to avoid the occurrence of mismatch, this algorithm would verify guide star triangle's auxiliary information if its uncertain sign is 1. Simulation shows that: compared to the traditional triangle algorithm, this algorithm has a couple of advantages, including the higher rate of correct star recognition, lower mismatches probability, and better real-Time adaptability and robustness. And this algorithm can reach 97% on identification rate when the position error is 2 pixels, and average identification time is 38.74ms; the traditional algorithm is 75% when the position error is 2 pixels, and average identification time is 187.26ms. 2017 SPIE.
Number of references:9
Main heading:Stars
Controlled terms:Defects - Efficiency - Pixels
Uncontrolled terms:Auxiliary information - Guide star catalogues - Guide star triangle - Identification algorithms - Identification rates - Real-time adaptability - Star identification - Star sensors
Classification code:657.2 Extraterrestrial Physics and Stellar Phenomena - 913.1 Production Engineering - 951 Materials Science
Numerical data indexing:Percentage 7.50e+01%, Percentage 9.70e+01%, Time 1.87e-01s
DOI:10.1117/12.2285591
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<448>
Accession number:20180304654522
Title:Thermal effects of optical antenna under the irradiation of laser
Authors:Sun, Yi (1, 2); Li, Fu (2); Yang, Wenqiang (1, 2); Yang, Jianfeng (2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, China; (2) Chinese Academy of Sciences, No.17 xinxi Avenue, Chang'an District, Xi'an, Shaanxi; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10463
Part number:1 of 1
Issue title:AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Issue date:2017
Publication year:2017
Article number:104631F
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614079
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133232
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:The laser communication terminal is a precision optical, mechanical, electrical integration device which operations extremely high accuracy. It is hard to improve the space environment adaptability in the hash vibration, thermal cycling, high vacuum and radiation conditions space environment. Accordingly, the optical antenna will be influenced by space thermal environment. Laser energy will be absorbed when optical antenna under the irradiation of laser. It can contribute to thermal distortion and make the beam quality degradation which affects the performance of laser communications links. This influence will aggravate when the laser power rising.Wavefront aberration is the distance between the ideal reference sphere and the actual distorted wavefront. The smaller the wavefront aberration, the better the optical performance of the optical antenna. On the contrary, the greater the wavefront aberration, the worse the performance of the optical antenna or even affect the normal operation of the optical antenna. The performance index of the optical antenna generally requires the wavefront aberration to be better than λ/20. Due to the different thermal and thermal expansion coefficients of the material, the effect of thermal deformation on the optical antenna can be reduced by matching the appropriate material. While the appropriate support structure and proper heat dissipation design can also reduce the impact. In this paper, the wavefront aberration of the optical antenna is better than λ/50 by the material matching and the appropriate support structure and the secondary design of the diameter of 5mm hole thermal design. 2017 SPIE.
Number of references:16
Main heading:Aberrations
Controlled terms:Antennas - Deformation - Earth (planet) - Ground supports - Irradiation - Laser beam effects - Optical communication - Optical instruments - Optical links - Thermal expansion - Wavefronts
Uncontrolled terms:Appropriate materials - Laser communication terminals - Optical antennae - Performance indices - Radiation condition - Thermal deformation - Thermal expansion coefficients - Wavefront aberrations
Classification code:717.1 Optical Communication Systems - 744.8 Laser Beam Interactions - 941.3 Optical Instruments - 951 Materials Science
Numerical data indexing:Size 5.00e-03m
DOI:10.1117/12.2285378
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<449>
Accession number:20172003664451
Title:Optimization of micro channel heat sinks for high-power 9xx-nm laser diodes
Authors:Zhang, Hongyou (1); Liang, Xuejie (1); Cai, Wanshao (1); Zah, Chungen (1); Liu, Xingsheng (1, 2)
Author affiliation:(1) Focuslight Technologies Inc, 56 Zhangba 6th Road, High-Tech Zone, Xian, Shaanxi; 710077, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No. 17 Xinxi Road, New Industrial Park, Xi'an, Shaanxi; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10098
Part number:1 of 1
Issue title:Physics and Simulation of Optoelectronic Devices XXV
Issue date:2017
Publication year:2017
Article number:1009829
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510606371
Document type:Conference article (CA)
Conference name:Physics and Simulation of Optoelectronic Devices XXV
Conference date:January 30, 2017 - February 2, 2017
Conference location:San Francisco, CA, United states
Conference code:127513
Sponsor:The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:High power laser diodes have found a wide range of industrial, space, medical applications, characterized by high conversion efficiency, small size, light weight and a long lifetime. In this investigation, high power 940 nm laser bars were mounted on optimized micro-channel heat sinks (MCC) using AuSn/CuW and In Soldering schemes. The optimized MCC cooler has decreased pressure drop and increased heat-sinking capability. The improvements in thermal and strain characteristics will be reported through wavelength, thermal rollover, spatial spectrum, SMILE, and polarization. 2017 SPIE.
Number of references:4
Main heading:Heat sinks
Controlled terms:Diodes - High power lasers - Medical applications - Optoelectronic devices - Semiconductor lasers
Uncontrolled terms:High conversion efficiency - Light weight - Long lifetime - low SMILE - Micro channel heat sinks - Spatial spectra - Strain characteristics - Thermal rollover
Classification code:616.1 Heat Exchange Equipment and Components - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 744.4.1 Semiconductor Lasers
Numerical data indexing:Size 9.40e-07m
DOI:10.1117/12.2256112
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<450>
Accession number:20171703607640
Title:Fast recovery method for fog image
Authors:Wang, Zefeng (1); Yang, Hongtao (1); Zhang, Hui (1); Zhang, Haifeng (1); Liao, Jiawen (1); Zhang, Zhi (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi Province; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102561O
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:The images of outdoor scenes obtained in haze, fog and other weather phenomena are usually have poor contrast and color fidelity. In order to get a clear view of the image taken under bad weather, this paper for the image degradation in fog and haze, we detailed analyzed the image degradation causes and fuzzy mechanism and made some meaningful work for improving the existing defogging method and introduing new ideas. The experimental results demonstrate the new method abilities to remove the haze layer as well as provide a reliable depth map. 2017 SPIE.
Number of references:5
Main heading:Image enhancement
Controlled terms:Fog - Image registration - Photonics - Visibility
Uncontrolled terms:Color fidelity - Fast recovery - Fog and haze - Image defogging - Image degradation - Meaningful works - Outdoor scenes - Weather phenomena
Classification code:443.1 Atmospheric Properties - 723.2 Data Processing and Image Processing - 741 Light, Optics and Optical Devices
DOI:10.1117/12.2257101
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<451>
Accession number:20180404671161
Title:Robust multiframe images super resolution
Authors:Zong, Caihui (1, 2); Zhao, Hui (1); Xie, Xiaopeng (1, 2); Li, Chuang (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, No.17, Xinxi Road, Xi'an; 710119, China; (2) Graduate School of University of Chinese Academy of Science, Jingjia Road, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104623D
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Super-resolution image reconstruction is a process to reconstruct high-resolution images from shifted, low-resolution, degraded observations. In the last two decades, a variety of super-resolution methods have been proposed. These methods are usually very sensitive to their assumed model of data and noise, which limits their utility. This paper reviews some of these methods and addresses their shortcomings. We propose an alternate approach using 1norm minimization and robust regularization based on a bilateral prior to deal with different data and noise models. This computationally inexpensive method is robust to errors in motion and blur estimation and results in images with sharp edges. Experimental results confirm the effectiveness of our method and demonstrate its superiority to other super-resolution methods. 2017 SPIE.
Number of references:25
Main heading:Image enhancement
Controlled terms:Image reconstruction - Image registration - Optical resolving power
Uncontrolled terms:Bilateral filters - Deblurring - Multi-frame - Regularization - Robust estimation - Super resolution
Classification code:723.2 Data Processing and Image Processing - 741.1 Light/Optics
DOI:10.1117/12.2285139
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<452>
Accession number:20172903953665
Title:Enhancement of quantum-enhanced LADAR receiver in nonideal phase-sensitive amplification
Authors:Zhang, Shuan (1, 2); Liu, Hongjun (1, 3); Huang, Nan (1); Wang, Zhaolu (1); Han, Jing (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100084, China; (3) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi; 030006, China
Source title:EPJ Applied Physics
Abbreviated source title:EPJ Appl Phys
Volume:79
Issue:2
Issue date:August 1, 2017
Publication year:2017
Article number:20501
Language:English
ISSN:12860042
E-ISSN:12860050
CODEN:EPAPFV
Document type:Journal article (JA)
Publisher:EDP Sciences
Abstract:The phase-sensitive amplification (PSA) with an injected squeezed vacuum field is theoretically investigated in quantum-enhanced laser detection and ranging (LADAR) receiver. The theoretical model of the amplified process is derived to investigate the quantum fluctuations in detail. A new method of mitigating the unflat gain of nonideal PSA is proposed by adjusting the squeezed angle of the squeezed vacuum field. The simulation results indicate that signal-noise ratio (SNR) of system can be efficiently improved and close to the ideal case by this method. This research will provide an important potential in the applications of quantum-enhanced LADAR receiver. 2017 EDP Sciences.
Number of references:23
Main heading:Optical radar
Controlled terms:Quantum electronics - Signal to noise ratio
Uncontrolled terms:Injected squeezed vacuum - Laser detection and ranging - Non ideals - Phase-sensitive amplifications - Quantum fluctuation - Signal-noise ratio - Squeezed vacuum fields - Theoretical modeling
Classification code:716.1 Information Theory and Signal Processing - 716.2 Radar Systems and Equipment - 931.4 Quantum Theory; Quantum Mechanics
DOI:10.1051/epjap/2017170113
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<453>
Accession number:20175004537183
Title:Hundred micro-joules level high power chirped pulse amplification of femtosecond laser based on single crystal fiber (Open Access)
Authors:Li, Feng (1, 2, 3); Yang, Zhi (1); Lv, Zhiguo (1); Hu, Xiaohong (1); Wei, Yufeng (1); Li, Qianglong (1); Tang, Shukuai (1, 2); Wang, Yishan (1, 3); Yang, Xiaojun (1); Zhao, Wei (1, 3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Institute Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China
Corresponding author:Li, Feng(laser_lifeng@opt.cn)
Source title:IEEE Photonics Journal
Abbreviated source title:IEEE Photon. J.
Volume:9
Issue:6
Issue date:December 2017
Publication year:2017
Article number:1507307
Language:English
E-ISSN:19430655
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:We demonstrate a hundred micro-Joules level femtosecond laser system based on a compact and simple two-stage Yb:YAG single crystal fiber chirped pulse amplification system which delivers compressed power of 15.57 W, pulse width of 715 fs. The different amplification performance with different input seed power is experimentally studied. A maximum direct amplified power output of 44 W at 100 kHz is obtained for an input seed power of 12 W. To the best of our knowledge, this is the highest average power of femtosecond laser based on single crystal fiber at hundred micro-Joules energy level. 2017 IEEE.
Number of references:15
Main heading:Fiber amplifiers
Controlled terms:Amplifiers (electronic) - Chirp modulation - Crystal whiskers - Femtosecond lasers - Fiber lasers - Laser beams - Laser excitation - Optical fibers - Ultrashort pulses - Yttrium aluminum garnet
Uncontrolled terms:Chirped pulse amplifications - Measurement by laser beam - Optical fiber polarization - Power lasers - Single crystal fiber
Numerical data indexing:Frequency 1.00e+05Hz, Power 1.20e+01W, Power 1.56e+01W, Power 4.40e+01W, Time 7.15e-13s
DOI:10.1109/JPHOT.2017.2780197
Funding details: Number: -, Acronym: -, Sponsor: CAS-SAFEA International Partnership Program for Creative Research Teams;Number: XAB2016B21, Acronym: -, Sponsor: -;Number: 61690222, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:Manuscript received October 31, 2017; revised November 28, 2017; accepted December 2, 2017. Date of publication December 6, 2017; date of current version December 14, 2017. This work was supported in part by the National Natural Science Foundation of China under Grant 61690222, in part by the CAS/SAFEA International partnership Program for Creative Research Teams, and in part by the CAS light of west China program under Grant XAB2016B21. Corresponding author: Feng Li (e-mail: laser_lifeng@opt.cn).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<454>
Accession number:20171703607636
Title:A new method named as segment-compound method of baffle design
Authors:Qin, Xing (1); Yang, Xiaoxu (1); Gao, Xin (2); Liu, Xishuang (3)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Beijing Institute of Tracking and Telecommunications Technology, Beijing; 100094, China; (3) 618 PLA Troops, Korla Municipality, 841001, China
Corresponding author:Qin, Xing(qinxing@opt.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102561J
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:As the observation demand increased, the demand of the lens imaging quality rising. Segment-Compound baffle design method was proposed in this paper. Three traditional methods of baffle design they are characterized as Inside to Outside, Outside to Inside, and Mirror Symmetry. Through a transmission type of optical system, the four methods were used to design stray light suppression structure for it, respectively. Then, structures modeling simulation with Solidworks, CAXA, Tracepro, At last, point source transmittance (PST) curve lines were got to describe their performance. The result shows that the Segment-Compound method can inhibit stay light more effectively. Moreover, it is easy to active and without use special material. 2017 SPIE.
Number of references:8
Main heading:Light transmission
Controlled terms:Optical design - Optical systems - Photonics - Stray light
Uncontrolled terms:Baffle - Design method - Imaging quality - Mirror symmetry - Model simulation - Point sources - Stray light suppression - Vane
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems
DOI:10.1117/12.2256848
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<455>
Accession number:20171403529035
Title:Plasma assisted fabrication of multi-layer graphene/nickel hybrid film as enhanced micro-supercapacitor electrodes (Open Access)
Authors:Ding, Q. (1); Li, W.L. (3, 4); Zhao, W.L. (1); Wang, J.Y. (1); Xing, Y.P. (1); Li, X. (2); Xue, T. (2); Qi, W. (5); Zhang, K.L. (1); Yang, Z.C. (1); Zhao, J.S. (1)
Author affiliation:(1) School of Electronics Information Engineering, Tianjin Key Laboratory of Film Electronic and Communication Devices, Tianjin University of Technology, 391 West Binshui Road, Tianjin; 300384, China; (2) Center for Analysis, Tianjin University, Tianjin; 300072, China; (3) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (4) University of Chinese, Academy of Sciences, Beijing; 100049, China; (5) Beijing Key Laboratory of Energy Nanomaterials, Advance Technology and Materials Co. Ltd., China Iron and Steel Research Institute Group, Beijing; 100081, China
Source title:IOP Conference Series: Materials Science and Engineering
Abbreviated source title:IOP Conf. Ser. Mater. Sci. Eng.
Volume:182
Part number:1 of 1
Issue:1
Issue title:17th IUMRS International Conference in Asia, IUMRS-ICA 2016
Issue date:March 10, 2017
Publication year:2017
Article number:012014
Language:English
ISSN:17578981
E-ISSN:1757899X
Document type:Conference article (CA)
Conference name:17th IUMRS International Conference in Asia, IUMRS-ICA 2016
Conference date:October 20, 2016 - October 24, 2016
Conference location:Qingdao, China
Conference code:126891
Publisher:Institute of Physics Publishing
Abstract:A facile synthesis strategy has been developed for fabricating multi-layer graphene/nickel hybrid film as micro-supercapacitor electrodes by using plasma enhanced chemical vapor deposition. The as-presented method is advantageous for rapid graphene growth at relatively low temperature of 650 °C. In addition, after pre-treating for the as-deposited nickel film by using argon plasma bombardment, the surface-to-volume ratio of graphene film on the treated nickel substrate is effectively increased by the increasing of surface roughness. This is demonstrated by the characterization results from transmission electron microscopy, scanning electron microscope and atomic force microscopy. Moreover, the electrochemical performance of the resultant graphene/nickel hybrid film as micro-supercapacitor working electrode was investigated by cyclic voltammetry and galvanostatic charge/discharge measurements. It was found that the increase of the surface-to-volume ratio of graphene/nickel hybrid film improved the specific capacitance of 10 times as the working electrode of micro-supercapacitor. Finally, by using comb columnar shadow mask pattern, the micro-supercapacitor full cell device was fabricated. The electrochemical performance measurements of the micro-supercapacitor devices indicate that the method presented in this study provides an effective way to fabricate micro-supercapacitor device with enhanced energy storage property. Published under licence by IOP Publishing Ltd.
Number of references:43
Main heading:Electrochemical electrodes
Controlled terms:Atomic force microscopy - Cyclic voltammetry - Fabrication - Graphene - High resolution transmission electron microscopy - Masks - Nickel - Plasma CVD - Plasma enhanced chemical vapor deposition - Scanning electron microscopy - Supercapacitor - Surface roughness - Temperature - Transmission electron microscopy
Uncontrolled terms:Argon plasma bombardment - Electrochemical performance - Energy storage properties - Galvanostatic charge/discharge - Micro supercapacitors - Specific capacitance - Surface-to-volume ratio - Transmission electron
Classification code:548.1 Nickel - 641.1 Thermodynamics - 714.2 Semiconductor Devices and Integrated Circuits - 741.3 Optical Devices and Systems - 761 Nanotechnology - 801.4.1 Electrochemistry - 802.2 Chemical Reactions - 804 Chemical Products Generally - 813.1 Coating Techniques - 931.2 Physical Properties of Gases, Liquids and Solids
Numerical data indexing:Temperature 9.23e+02K
DOI:10.1088/1757-899X/182/1/012014
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<456>
Accession number:20182205250779
Title:The pseudo-label scheme in breast tumor classification based on BI-RADS features
Authors:Zhang, Fan (1); Huang, Qinghua (1); Li, Xuelong (2)
Author affiliation:(1) School of Electronic and Information Engineering, South China University of Technology, Guangzhou; 510641, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Huang, Qinghua(qhhuang@scut.edu.cn)
Source title:Proceedings - 2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2017
Abbreviated source title:Proc. - Int. Congr. Image Signal Process., BioMed. Eng. Inf., CISP-BMEI
Volume:2018-January
Part number:1 of 1
Issue title:Proceedings - 2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2017
Issue date:July 2, 2017
Publication year:2017
Pages:1-5
Language:English
ISBN-13:9781538619377
Document type:Conference article (CA)
Conference name:10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2017
Conference date:October 14, 2017 - October 16, 2017
Conference location:Shanghai, China
Conference code:135071
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:The proposed method employs the Breast Imaging Reporting and Data System (BI-RADS) feature to classify the breast tumor. Compared with the ultrasound breast tumor classification methods based on the image, the 'semantic gap' between the clinical feature and image feature is eliminated. In order to address the shortage of the labeled data, the pseudo-labeled scheme based on SVM is designed. The SVM classifier is trained by few labeled samples, and the hybrid dataset which contains the pseudo-labeled sample marked by SVM and few labeled samples is adopted to train the decision tree. 500 ultrasound breast tumor cases are collected to evaluate the proposed method. According to the result of the experiment, compared with the decision tree trained by the labeled dataset only, the accuracy of decision tree train by hybrid dataset improves 2.65%, the NPV improves 7.00%, and the Sensitivity increases 3.30%. 2017 IEEE.
Number of references:21
Main heading:Classification (of information)
Controlled terms:Biomedical engineering - Decision trees - Image processing - Medical imaging - Semantics - Tumors - Ultrasonics
Uncontrolled terms:BI-RADS - Breast imaging reporting and data systems - Breast tumor - Breast tumor classifications - Clinical features - Labeled dataset - Pseudo-label scheme - Sensitivity increase
Classification code:461.1 Biomedical Engineering - 461.2 Biological Materials and Tissue Engineering - 716.1 Information Theory and Signal Processing - 753.1 Ultrasonic Waves - 961 Systems Science
Numerical data indexing:Percentage 2.65e+00%, Percentage 3.30e+00%, Percentage 7.00e+00%
DOI:10.1109/CISP-BMEI.2017.8302288
Funding details: Number: 201605030011, Acronym: -, Sponsor: -;Number: 2014A050503020, Acronym: -, Sponsor: -;Number: 61571193, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:ACKNOWLEDGMENT This work was partially supported by National Natural Science Foundation of China (Nos. 61372007 and 61571193), Guangzhou Key Lab of Body Data Science (no.201605030011), and Guangdong Provincial Science and Technology Program - International Collaborative Projects (No. 2014A050503020).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<457>
Accession number:20164703043637
Title:Constrained Low-Rank Learning Using Least Squares-Based Regularization
Authors:Li, Ping (1); Yu, Jun (1); Wang, Meng (2); Zhang, Luming (2, 3); Cai, Deng (4); Li, Xuelong (5)
Author affiliation:(1) MOE Key Laboratory of Complex Systems Modeling and Simulation, School of Computer Science and Technology, Hangzhou Dianzi University, Hangzhou; 310018, China; (2) School of Computer Science and Information Engineering, Hefei University of Technology, Hefei; 230009, China; (3) National University of Singapore (Suzhou) Research Institute, Suzhou; 215123, China; (4) State Key Laboratory of CADandCG, College of Computer Science, Zhejiang University, Hangzhou; 310058, China; (5) Center for Optical Imagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:IEEE Transactions on Cybernetics
Abbreviated source title:IEEE Trans. Cybern.
Volume:47
Issue:12
Issue date:December 2017
Publication year:2017
Pages:4250-4262
Article number:7740938
Language:English
ISSN:21682267
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Low-rank learning has attracted much attention recently due to its efficacy in a rich variety of real-world tasks, e.g., subspace segmentation and image categorization. Most low-rank methods are incapable of capturing low-dimensional subspace for supervised learning tasks, e.g., classification and regression. This paper aims to learn both the discriminant low-rank representation (LRR) and the robust projecting subspace in a supervised manner. To achieve this goal, we cast the problem into a constrained rank minimization framework by adopting the least squares regularization. Naturally, the data label structure tends to resemble that of the corresponding low-dimensional representation, which is derived from the robust subspace projection of clean data by low-rank learning. Moreover, the low-dimensional representation of original data can be paired with some informative structure by imposing an appropriate constraint, e.g., Laplacian regularizer. Therefore, we propose a novel constrained LRR method. The objective function is formulated as a constrained nuclear norm minimization problem, which can be solved by the inexact augmented Lagrange multiplier algorithm. Extensive experiments on image classification, human pose estimation, and robust face recovery have confirmed the superiority of our method. 2016 IEEE.
Number of references:53
Main heading:Image classification
Controlled terms:Image segmentation - Lagrange multipliers
Uncontrolled terms:Augmented lagrange multipliers - Data representations - Low-dimensional representation - Low-dimensional subspace - Low-rank representations - Nuclear norm minimizations - Rank learning - regularization
DOI:10.1109/TCYB.2016.2623638
Funding details: Number: -, Acronym: -, Sponsor: China Scholarship Council;Number: LQ15F020012, Acronym: -, Sponsor: Natural Science Foundation of Zhejiang Province;Number: 61472266, Acronym: -, Sponsor: National Basic Research Program of China (973 Program);Number: 61502131, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61502131, in part by the Zhejiang Provincial Natural Science Foundation of China under Grant LQ15F020012, in part by the National Basic Research Program of China (973 Program) under Grant 2013CB336500, in part by the National Natural Science Foundation of China under Grant 61572169, Grant 61472266, and Grant 61472110, and in part by the China Scholarship Council.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<458>
Accession number:20171103434613
Title:Beam dynamics in disordered P T -symmetric optical lattices based on eigenstate analyses
Authors:Yao, Xiankun (1); Liu, Xueming (1, 2, 3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou; 310027, China; (3) School of Physics and Electronic Science, Hunan University of Science and Technology, Xiangtan; 411201, China
Corresponding author:Liu, Xueming(liuxueming72@yahoo.com)
Source title:Physical Review A
Abbreviated source title:Phys. Rev. A
Volume:95
Issue:3
Issue date:March 7, 2017
Publication year:2017
Article number:033804
Language:English
ISSN:24699926
E-ISSN:24699934
Document type:Journal article (JA)
Publisher:American Physical Society
Abstract:Wave functions will experience a localization process when evolving in disordered lattices. Here, we have demonstrated the effects of disordered PT-symmetric potentials on wave-function characteristics in optics based on eigenstate analyses. In weak-disorder cases, by using the tight-binding approximation method, a conclusion is obtained that the increasing of the imaginary part of potential can enhance the diffraction, while the increasing disorder will block the diffraction and lead to localization. In the general case, band theory is used for band-structure analysis of three bands. We find that the disorder has a smaller effect on the higher-order band, which is proved by the beam evolutions. Our work may be instructive for realizing beam path control by manipulating the strengths of disorder and gain and/or loss of lattice. 2017 American Physical Society.
Number of references:37
Main heading:Optical lattices
Controlled terms:Crystal lattices - Diffraction - Wave functions
Uncontrolled terms:Band structure analysis - Beam dynamics - Disordered lattices - Function characteristic - Higher-order - Imaginary parts - Tight-binding approximations - Weak disorder
Classification code:744.8 Laser Beam Interactions - 921 Mathematics - 933.1.1 Crystal Lattice
DOI:10.1103/PhysRevA.95.033804
Funding details: Number: 2015KCT-06, Acronym: -, Sponsor: -;Number: 61525505, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under Grant No. 61525505 and by the Key Scientific and Technological Innovation Team Project in Shaanxi Province under Grant No. 2015KCT-06.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<459>
Accession number:20173404070850
Title:Formation, element-migration and broadband luminescence in quantum dot-doped glass fibers
Authors:Huang, Xiongjian (1); Fang, Zaijin (1, 2); Peng, Zixing (1); Ma, Zhijun (1); Guo, Haitao (3); Qiu, Jianrong (4); Dong, Guoping (1)
Author affiliation:(1) State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou; 510641, China; (2) Key Lab. of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin; 150001, China; (3) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and precision Mechanics, Chinese Academy of Science, Xi’an; 710119, China; (4) College of Optical Science and Engineering, State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou; 310027, China
Corresponding author:Dong, Guoping(dgp@scut.edu.cn)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:17
Issue date:August 21, 2017
Publication year:2017
Pages:19691-19700
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:All solid-state PbS quantum dot (QD)-doped glass precursor fibers avoidingcrystallizationduring fiber-drawing process are successfully fabricated by melt-in-tubetechnique.By subsequent heat treatment schedule, controllable crystallization ofPbS QDscan be obtained in the glass precursor fibers, contributing to broad near-infraredemissionsfrom PbS QD-doped glass fibers. Nevertheless, we find that element-migrationandvolatilization of sulfur simultaneously happen during the whole fiber-drawingprocess,because of the huge difference between the melting temperature of core glassandthe fiber-drawing temperature. Element-migration pathways along the fiber lengthwererevealed. Such PbS QD-doped glass fiber with broadband emissions will be a potentialapplicationas gain medium of broadband fiber amplifiers and fiber lasers. 2017 Optical Society of America.
Number of references:33
Main heading:Fiber amplifiers
Controlled terms:Broadband amplifiers - Fiber lasers - Glass fibers - Infrared devices - IV-VI semiconductors - Lead compounds - Nanocrystals - Semiconductor quantum dots
Uncontrolled terms:Broadband emission - Broadband fiber amplifiers - Broadband luminescence - Element migrations - Fiber-drawing process - Heat treatment schedule - Near-infrared emissions - Precursor fibers
Classification code:713.1 Amplifiers - 714.2 Semiconductor Devices and Integrated Circuits - 744.4 Solid State Lasers - 761 Nanotechnology - 812.3 Glass
DOI:10.1364/OE.25.019691
Funding details: Number: 51102096, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61475047, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61475189, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 61475047, 51102096, 61475189), Guangdong Natural Science Foundation for Distinguished Young Scholars (Grant Nos. S2014A030306045), the Pearl River S&T Nova Program of Guangzhou (2014J2200083), Science and Technology Project of Guangdong Province (2017A010103037), and the Fundamental Research Funds for the Central Universities.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<460>
Accession number:20183705811871
Title:Mirrors fabricated by all CFRP composites and their dimensional stability in air
Authors:Wang, YongJie (1); Xu, Liang (1); Ding, Jiao Teng (1); Xie, YongJie (1); Ma, Zhen (1)
Author affiliation:(1) Xi’an Institute of Optics and Precision Mechanics of Cas, Xi’an, China
Corresponding author:Wang, YongJie(wangyongjie@opt.ac.cn)
Source title:ICCM International Conferences on Composite Materials
Abbreviated source title:ICCM Int. Conf. Compos. Mater.
Volume:2017-August
Part number:1 of 1
Issue title:21st International Conference on Composite Materials, ICCM 2017
Issue date:2017
Publication year:2017
Language:English
Document type:Conference article (CA)
Conference name:21st International Conference on Composite Materials, ICCM 2017
Conference date:August 20, 2017 - August 25, 2017
Conference location:Xi'an, China
Conference code:138793
Publisher:International Committee on Composite Materials
Abstract:To realize ultra-lightweight ratio, a Φ150mm mirror was fabricated with all CFRP (carbon fiber reinforced plastic composites). The replication technology was applied to improve surface accuracy, meanwhile the dimensional stability was detected in this paper. As a result, 0.098 λ (λ=632.8nm, RMS) was achieved through resin replication method. The roughness was improved to 1.9 nm (Ra). The CFRP mirror presented poor dimension stability, the surface accuracy increased gradually in air. However, it can be improved by a polymer coating on mirror surface. The surface accuracy can be maintained under 0.15 λ for more than 200 days. 2017 International Committee on Composite Materials. All rights reserved.
Number of references:8
Funding details: Number: 51402351, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work has been supported by the National Natural Science Foundation of China under Grant No. 51402351.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<461>
Accession number:20171803636518
Title:Ablation resistance of carbides-coated C/C composites
Authors:Li, Hejun (1); Wang, Yongjie (1, 2); Fu, Qiangang (1)
Author affiliation:(1) State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an, China; (2) Xi’an Institute of Optics and Precision Mechanics of Cas, Xi’an, China
Corresponding author:Wang, Yongjie(wyj4122@mail.nwpu.edu.cn)
Source title:Surface Engineering
Abbreviated source title:Surf Eng
Volume:33
Issue:11
Issue date:November 2, 2017
Publication year:2017
Pages:803-809
Language:English
ISSN:02670844
E-ISSN:17432944
CODEN:SUENET
Document type:Journal article (JA)
Publisher:Taylor and Francis Ltd.
Abstract:To improve the ablation resistance of C/C composites under oxyacetylene flame, SiC, TaC and HfC coatings were fabricated on composites surface. Ablation properties of coatings were detected and the ablation mechanism was discussed in the paper as well. The centre region of SiC and TaC coatings has failed during ablation and exhibited high ablative rates; it attributed to so high ablation temperature, which was much higher melting point of their oxides (Ta
Number of references:32
Main heading:Ablation
Controlled terms:Carbides - Carbon carbon composites - Flame resistance - Hafnium oxides - Melting point - Silica - Silicon carbide - Tantalum oxides - Thermal barrier coatings
Uncontrolled terms:Ablation mechanisms - Ablation properties - Ablation resistance - C/C composites - Efficient protections - Higher melting points - oxyacetylene - Oxyacetylene flame
Classification code:415.4 Structural Materials Other Than Metal, Plastics or Wood - 641.2 Heat Transfer - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 914.2 Fires and Fire Protection - 931.2 Physical Properties of Gases, Liquids and Solids
DOI:10.1080/02670844.2017.1319899
Funding details: Number: SKLSP201404, Acronym: -, Sponsor: -;Number: 51402351, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work has been supported by the National Natural Science Foundation of China under Grant No. 51402351 and State Key Laboratory of Solidification Processing of Northwestren Polytechnical University under Grant No. SKLSP201404.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<462>
Accession number:20170303263044
Title:Small-period long-period fiber grating with improved refractive index sensitivity and dual-parameter sensing ability
Authors:Shen, Fangcheng (1, 2); Wang, Changle (2); Sun, Zhongyuan (2); Zhou, Kaiming (2, 3); Zhang, Lin (2); Shu, Xuewen (1)
Author affiliation:(1) Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan; 430074, China; (2) Aston Institute of Photonic Technologies, Aston University, Birmingham; B4 7ET, United Kingdom; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Corresponding author:Shu, Xuewen(xshu@hust.edu.cn)
Source title:Optics Letters
Abbreviated source title:Opt. Lett.
Volume:42
Issue:2
Issue date:January 15, 2017
Publication year:2017
Pages:199-202
Language:English
ISSN:01469592
E-ISSN:15394794
CODEN:OPLEDP
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We UV inscribe and characterize a long-period fiber grating with a period of 25 μm. A series of polarization-dependent dual-peak pairs can be seen in the transmission spectrum, even though only the symmetrical refractive index modification is introduced. The fabricated grating exhibits a lower temperature sensitivity compared with standard long-period gratings and an enhanced refractive index sensitivity of ～312.5 nm?RIU averaged from 1.315 to 1.395, which is more than four-fold higher than standard long-period gratings in this range. The full width at half-maximum of the fabricated grating is only about 0.6 nm, allowing for high-resolution sensing. Moreover, the grating period is so small that the attenuation dip corresponding to a high-order Bragg resonance can also be seen, which can act as a monitor of the unwanted perturbation to realize dual-parameter sensing. 2017 Optical Society of America.
Number of references:13
Main heading:Refractive index
Controlled terms:Diffraction gratings - Fiber optic sensors
Uncontrolled terms:High resolution - Long period fiber grating - Long Period Gratings - Lower temperature sensitivities - Refractive index sensitivity - Refractive-index modification - Sensing abilities - Transmission spectrums
Classification code:741 Light, Optics and Optical Devices
Numerical data indexing:Size 2.50e-05m, Size 6.00e-10m
DOI:10.1364/OL.42.000199
Funding details: Number: -, Acronym: CSC, Sponsor: China Scholarship Council;Number: -, Acronym: CSC, Sponsor: China Scholarship Council;Number: -, Acronym: WNLO, Sponsor: Wuhan National Laboratory for Optoelectronics;
Funding text:China Scholarship Council (CSC); Wuhan National Laboratory for Optoelectronics (WNLO). F. S. acknowledges the China Scholarship Council for the financial support and thanks Dr. Zhijun Yan for the useful discussion.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<463>
Accession number:20165003113716
Title:Comparison of nanoparticle generation by two plasma techniques: Dielectric barrier discharge and spark discharge
Authors:Jiang, Lun (1, 2); Li, Qing (1); Zhu, Dandan (1); Attoui, Michel (3); Deng, Zhi (2); Tang, Jie (4); Jiang, Jingkun (1, 5)
Author affiliation:(1) State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China; (2) Department of Engineering Physics, Tsinghua University, Beijing, China; (3) University Paris Est Creteil, University Paris-Diderot, LISA, UMR CNRS, Paris, France; (4) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, China; (5) State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, China
Corresponding author:Jiang, Jingkun(jiangjk@tsinghua.edu.cn)
Source title:Aerosol Science and Technology
Abbreviated source title:Aerosol Sci. Technol.
Volume:51
Issue:2
Issue date:February 1, 2017
Publication year:2017
Pages:206-213
Language:English
ISSN:02786826
E-ISSN:15217388
CODEN:ASTYDQ
Document type:Journal article (JA)
Publisher:Taylor and Francis Inc., 325 Chestnut St, Suite 800, Philadelphia, PA 19106, United States
Abstract:Dielectric barrier discharge (DBD) and spark discharge, two versatile atmospheric pressure plasma-based techniques, have been employed to generate nanoparticles. This study compares the characteristics of metal nanoparticles generated by a DBD reactor and a spark discharge generator with argon as the working gas. The gas temperature in the discharge region of the DBD reactor remained near room temperature, while that of the spark reactor varied from 470 to 1120 K and generally increased with increasing applied voltage amplitude in the range of 2–10 kV and driving frequency in the range of 1–10 kHz. Comparing to spark-generated nanoparticles under the same voltage, frequency, and flow rate, DBD-generated nanoparticles have smaller sizes, better monodispersity, and lower number concentrations. The number concentration of DBD-generated particles decreases significantly under high working voltage and frequency, while the number concentration of spark-generated particles increases with increasing working voltage. Under continuous operations over several hours, the DBD reactor has better temporal stability in generating nanoparticles than the spark generator. ？ 2017 American Association for Aerosol Research 2017 American Association for Aerosol Research.
Number of references:43
Main heading:Dielectric devices
Controlled terms:Atmospheric pressure - Dielectric materials - Electric discharges - Flow control - Metal nanoparticles - Metal working - Plasma diagnostics - Plasma sources
Uncontrolled terms:Atmospheric pressure plasmas - Continuous operation - Dielectric barrier discharges - Driving frequencies - Generating nanoparticles - Near room temperature - Number concentration - Temporal stability
Classification code:443.1 Atmospheric Properties - 535.2.2 Metal Forming Practice - 631.1 Fluid Flow, General - 701.1 Electricity: Basic Concepts and Phenomena - 708.1 Dielectric Materials - 761 Nanotechnology - 932.3 Plasma Physics
DOI:10.1080/02786826.2016.1260681
Funding details: Number: -, Acronym: VCU, Sponsor: Virginia Commonwealth University;Number: 2013CB228505, Acronym: -, Sponsor: -;Number: 21422703, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 21521064, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 41227805, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:We thank Qiang Zhang, Jianguo Deng, Runlong Cai, Xiaotong Chen, Yunru Ren, and Zhen Li for their experimental supports. We also thank Prof. Da-Ren Chen from Virginia Commonwealth University for helpful discussion. Financial support from the National Key Basic Research and Development Program of China (2013CB228505), and National Natural Science Foundation of China (21521064, 41227805, and 21422703) is acknowledged.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<464>
Accession number:20174204277914
Title:Identification of the front or rear surface damage of the thin DKDP crystal
Authors:Wan, Neng (1, 2); Da, Zhengshang (1); Li, Hongguang (1); Yuan, Suochao (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Abbreviated source title:Hongwai yu Jiguang Gongcheng Infrared Laser Eng.
Volume:46
Issue:8
Issue date:August 25, 2017
Publication year:2017
Article number:0817001
Language:Chinese
ISSN:10072276
Document type:Journal article (JA)
Publisher:Chinese Society of Astronautics
Abstract:On the basis of total internal reflection edge illumination, a method can be used to identify the damage on front or rear surface of the thin DKDP crystal by the birefringence of DKDP crystal. When an ultraviolet ray incidented upon a DKDP crystal whose thickness was 11 mm, a displacement of 254.738 μm (theoretical value) between o-ray and e-ray on the exit surface will be caused due to the birefringence of DKDP crystal. The damage located on the rear surface of DKDP had double-images, which could be modulated by polarizer placed in front of CCD camera. The damage located on the front surface of DKDP had a single-image, which couldn't be modulated by polarizer. The method had the ability of avoiding extracting the information of a damage repeatedly, and improving the accuracy of damage identification. The experiments demonstrate that the method can distinguish the damage on front or rear surface of the thin DKDP crystal whose thickness is 11 mm. 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
Number of references:14
Main heading:Damage detection
Controlled terms:Birefringence - CCD cameras - Optical instruments - Polarization - Refractive index
Uncontrolled terms:Damage Identification - Damage inspection - DKDP crystals - Single images - Surface damages - Theoretical values - Total internal reflections - Ultraviolet-ray
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 941.3 Optical Instruments
Numerical data indexing:Size 1.10e-02m, Size 2.55e-04m
DOI:10.3788/IRLA201746.0817001
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<465>
Accession number:20180404671168
Title:Study on nonlinear process of remote sensing camera imaging at visible wavelengths
Authors:Zhang, Xing (1, 2); Liu, Zhaohui (1); Zhou, Liang (1, 2); Li, Wenhao (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Zhang, Xing
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104623K
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:As the atmospheric environments get more complex, the surface characteristics are diverse, spaceborne remote sensing cameras with the characteristics of large aperture, long focal length, and small size are demanded ever-increasing, and the high-sensitivity photoelectric detectors are required to detect more observing targets, the nonlinear process of remote sensing imaging system is worth consideration. In this paper, time delay integrated charge-coupled device (TDICCD) is used as an example to analyze imaging chains of space remote sensing system at visible wavelengths. The nonlinear process influenced by atmospheric radiation transmission mode, the reflection characteristics of earth surface, ground-Air couping effect, imaging optical system, TDICCD photoelectric detector, imaging electronics system, data transmission/compression system, and ground station system is researched in detail. At the same time, the method to reduce the nonlinear effects of the image is discussed. In order to apply the space remote sensing information to all walks of life effectively, the nonlinear process will be improved by high-precision atmospheric radiation transmission calculation, reducing the move of the image plane and the noise of the electronics system, designing the A/D converter with stable gain coefficient, optimizing the compression/decompression process, and reducing information loss of the remote sensing imaging system from satellite to the ground station system. 2017 SPIE.
Number of references:11
Main heading:Remote sensing
Controlled terms:Analog to digital conversion - Atmospheric radiation - Cameras - Chains - Charge coupled devices - Data communication systems - Image enhancement - Imaging systems - Nonlinear optics - Optical systems - Photoelectricity - Photonic devices - Space optics
Uncontrolled terms:Imaging chains - Nonlinear process - Radiation transmission - Remote sensing imaging - TDI-CCD
Classification code:443.1 Atmospheric Properties - 602.1 Mechanical Drives - 714.2 Semiconductor Devices and Integrated Circuits - 741 Light, Optics and Optical Devices - 742.2 Photographic Equipment - 746 Imaging Techniques
DOI:10.1117/12.2285180
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<466>
Accession number:20174204284203
Title:Patch-based topic model for group detection
Authors:Chen, Mulin (1); Wang, Qi (1, 2); Li, Xuelong (3)
Author affiliation:(1) School of Computer Science and Center for Optical Imagery Analysis and Learning, Northwestern Polytechnical University, Xi’an; 710072, China; (2) Unmanned System Research Institute, Northwestern Polytechnical University, Xi’an; 710072, China; (3) Center for Optical Imagery Analysis and Learning, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China
Corresponding author:Wang, Qi(crabwq@nwpu.edu.cn)
Source title:Science China Information Sciences
Abbreviated source title:Sci. China Inf. Sci.
Volume:60
Issue:11
Issue date:November 1, 2017
Publication year:2017
Article number:113101
Language:English
ISSN:1674733X
E-ISSN:18691919
Document type:Journal article (JA)
Publisher:Science in China Press
Abstract:Pedestrians in crowd scenes tend to connect with each other and form coherent groups. In order to investigate the collective behaviors in crowds, plenty of studies have been conducted on group detection. However, most of the existing methods are limited to discover the underlying semantic priors of individuals. By segmenting the crowd image into patches, this paper proposes the Patch-based Topic Model (PTM) for group detection. The main contributions of this study are threefold: (1) the crowd dynamics are represented by patchlevel descriptor, which provides a macroscopic-level representation; (2) the semantic topic label of each patch are inferred by integrating the Latent Dirichlet Allocation (LDA) model and the Markov Random Fields (MRF); (3) the optimal group number is determined automatically with an intro-class distance evaluation criterion. Experimental results on real-world crowd videos demonstrate the superior performance of the proposed method over the state-of-the-arts. 2017, Science China Press and Springer-Verlag GmbH Germany.
Number of references:16
Main heading:Behavioral research
Controlled terms:Image segmentation - Markov processes - Semantics - Statistics
Uncontrolled terms:Collective behavior - Crowd analysis - Evaluation criteria - Group detection - Latent dirichlet allocations - latent topic - Macroscopic levels - Markov Random Fields
Classification code:922.1 Probability Theory - 922.2 Mathematical Statistics - 971 Social Sciences
DOI:10.1007/s11432-017-9237-1
Funding details: Number: 2017YFB1002202, Acronym: -, Sponsor: -;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61379094, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61773316, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 3102017AX010, Acronym: -, Sponsor: -;
Funding text:Acknowledgements This work was supported by National Key Research and Development Program of China (Grant No. 2017YFB1002202), National Natural Science Foundation of China (Grant Nos. 61773316, 61379094), Fundamental Research Funds for the Central Universities (Grant No. 3102017AX010), and Open Research Fund of Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<467>
Accession number:20171203466158
Title:Research progress on fabrication technology of space mirror using carbon fiber composite
Authors:Yang, Zhiyong (1, 2); Zhang, Boming (1); Xie, Yongjie (3); Zhang, Jianbao (2); Tang, Zhanwen (2); Sun, Baogang (2)
Author affiliation:(1) School of Materials Science and Engineering, Beihang University, Beijing; 100083, China; (2) Aerospace Research Institute of Materials & Processing Technology, Beijing; 100076, China; (3) Xi'an Institute of Optics & Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710068, China
Corresponding author:Zhang, Boming(zbm@buaa.edu.cn)
Source title:Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
Abbreviated source title:Fuhe Cailiao Xuebao
Volume:34
Issue:1
Issue date:January 1, 2017
Publication year:2017
Pages:1-11
Language:Chinese
ISSN:10003851
CODEN:FCXUEC
Document type:Journal article (JA)
Publisher:Beijing University of Aeronautics and Astronautics (BUAA)
Abstract:Excellent specific stiffness, good thermal stability and diversiform designability are obvious characteristics of carbon fiber composite(CFRP), which make it a new ideal material for the lightweight reflectors, especially for large diameter and high resolution space reflectors. The present situation of the research of optical mirrors in our country and on abroad was briefly introduced. Then according to the characteristics of mirrors, selection requirements of carbon fiber composite for mirror and foreign prepreg system commonly used were introduced. Manufacturing method of carbon fiber composite optical mirror is different from that of the traditional optical materials. Usually, the high efficiency, fast and low cost replication process is used for carbon fiber composite mirror. The optical replication of carbon fiber composite mirrors, and factors affecting the accuracy of replicated mirror were emphatically introduced, and the factors including the mould, prepreg layup, deformation of mirror, fiber print-through, dimensional stability and size of mirror, etc. And the corresponding control measures to reduce the influence degree were put forward for the former five factors. Causes and solutions of mirror fiber print-through, and the key to control dimensional stability of mirror were focused. 2017, Chinese Society for Composite Materials. All right reserved.
Number of references:40
Main heading:Mirrors
Controlled terms:Carbon fibers - Dimensional stability - Reflection
Uncontrolled terms:Carbon fiber composite - Cyanate esters - Fiber placement - Fiber print-through - Optical replication
Classification code:741.3 Optical Devices and Systems - 804 Chemical Products Generally
DOI:10.13801/j.cnki.fhclxb.20160328.012
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<468>
Accession number:20182605356031
Title:An effective method for human detection using far-infrared images
Authors:Wu, Di (1); Wang, Jihong (1); Liu, Wei (2); Cao, Jianzhong (2); Zhou, Zuofeng (2)
Author affiliation:(1) College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, China; (2) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Source title:1st International Conference on Electronics Instrumentation and Information Systems, EIIS 2017
Abbreviated source title:Int. Conf. Electron. Instrum. Inf. Syst., EIIS
Volume:2018-January
Part number:1 of 1
Issue title:1st International Conference on Electronics Instrumentation and Information Systems, EIIS 2017
Issue date:July 2, 2017
Publication year:2017
Pages:1-4
Language:English
ISBN-13:9781538608432
Document type:Conference article (CA)
Conference name:1st International Conference on Electronics Instrumentation and Information Systems, EIIS 2017
Conference date:June 3, 2017 - June 5, 2017
Conference location:Harbin, China
Conference code:134751
Sponsor:Conference Publishing Services (CPS)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In this paper, a robust real-time approach to detect humans in far-infrared images is proposed. Adaptive thresholds and vertical edge operator are combined to extract human candidate regions. Then, disturbing components are removed using morphological operations, size filtering and component labeling. After analyzing each connected region through histogram evaluation, local thresholds are employed to separate overlapped human candidates into single ones. At last, nonhuman objects are eliminated by shape refinement. Experimental results demonstrate the approach is accurate to locate human regions and efficient to meet the real-time demand of a general surveillance system. 2017 IEEE.
Number of references:15
Main heading:Image segmentation
Controlled terms:Information systems - Information use - Infrared imaging - Mathematical morphology
Uncontrolled terms:Adaptive segmentation - Adaptive thresholds - Component labeling - General Surveillance - Human detection - Local thresholds - Morphological operations - Real time performance
Classification code:746 Imaging Techniques - 903.3 Information Retrieval and Use
DOI:10.1109/EIIS.2017.8298602
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<469>
Accession number:20173804169386
Title:Optimization on stereo correspondence based on local feature algorithm
Authors:Li, Xiaohan (1); Zongxi, Song (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Xi'an, China
Source title:2017 2nd International Conference on Image, Vision and Computing, ICIVC 2017
Abbreviated source title:Int. Conf. Image, Vis. Comput., ICIVC
Part number:1 of 1
Issue title:2017 2nd International Conference on Image, Vision and Computing, ICIVC 2017
Issue date:July 18, 2017
Publication year:2017
Pages:113-117
Article number:7984529
Language:English
ISBN-13:9781509062379
Document type:Conference article (CA)
Conference name:2nd International Conference on Image, Vision and Computing, ICIVC 2017
Conference date:June 2, 2017 - June 4, 2017
Conference location:Chengdu, China
Conference code:129351
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Stereo correspondence is one of the most important steps in binocular stereovision. It consists feature point extraction and image matching. In order to solve the problems of bad anti-noise performance and low accuracy of image matching in Scale Invariant Feature Transform (SIFT) algorithm, an optimized matching method based on local feature algorithm with Speeded-up Robust Feature (SURF) is proposed in this paper. In terms of feature extraction, SURF feature descriptor has a good anti-noise performance, which is extended from 64 dimensions to 128 dimensions makes the descriptor more specific, and the matching method is improved. The average value of the feature distance is used to replace the second neatest distance of the original matching algorithm, and Random Sample Consensus (RANSAC) algorithm is used to eliminate the wrong matching pairs. Test results indicate that the change of SURF feature points numbers in Gaussian noise is no more than positive or negative 15%, while the change of SIFT is more than 50%. In addition, the matching accuracy of the proposed method is increased by 20.5% compared to the original method of the shortest Euclidean distance between two feature vectors. Based on such result analysis, SURF algorithm with optimization matching method makes the matching accuracy more effective and has a practical value. 2017 IEEE.
Number of references:9
Main heading:Stereo image processing
Controlled terms:Binoculars - Extraction - Gaussian noise (electronic) - Image matching - Image segmentation - Stereo vision
Uncontrolled terms:Binocular stereovision - Feature point extraction - Scale invariant feature transforms - Speeded up robust features - Stereo correspondences
Classification code:723.2 Data Processing and Image Processing - 723.5 Computer Applications - 741.2 Vision - 741.3 Optical Devices and Systems - 802.3 Chemical Operations
Numerical data indexing:Percentage 1.50e+01%, Percentage 2.05e+01%, Percentage 5.00e+01%
DOI:10.1109/ICIVC.2017.7984529
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<470>
Accession number:20183105636047
Title:Optimized design of fast single image dehazing algorithm
Authors:Yang, Lei (1); Bian, He (1); Feng, Jia (1); Zhao, Lisha (2); Wang, Hua (1); Liu, Qing (1); Wang, Hao (1); Wang, Huawei (1); Liao, Jiawen (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Xing Zhi College of Xi'an, University of Finance and Economics, Xi'an; 710038, China
Source title:2016 13th International Computer Conference on Wavelet Active Media Technology and Information Processing, ICCWAMTIP 2017
Abbreviated source title:Int. Comput. Conf. Wavelet Act. Media Technol. Inf. Process., ICCWAMTIP
Volume:2018-February
Part number:1 of 1
Issue title:2016 13th International Computer Conference on Wavelet Active Media Technology and Information Processing, ICCWAMTIP 2017
Issue date:July 2, 2017
Publication year:2017
Pages:171-174
Language:English
ISBN-13:9781509061259
Document type:Conference article (CA)
Conference name:14th International Computer Conference on Wavelet Active Media Technology and Information Processing, ICCWAMTIP 2017
Conference date:December 15, 2017 - December 17, 2017
Conference location:Chengdu, Sichuan Province, China
Conference code:135072
Sponsor:China International Talent Exchange Foundation; National High Technology Research and Development Program of China; The National Natural Science Foundation of China (NSFC)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Imaging in the atmosphere presents the phenomenons of low contrast, low saturation and hue offset due to atmospheric particles such as haze and fog. In this paper, an optimized design method is proposed to remove haze from a single image. Based on the atmospheric scattering model, dark channel prior is used to estimate the value of global atmospheric light by an interval. Meanwhile, the initial estimation of medium transmission is obtained. And the white balance is performed to simplify the atmospheric scattering model. Then, to deal with the invalid case of the dark channel, we exploit a scheme to identify bright area based on dual threshold and develop a way to correct transmission rate, which enables the dark channel prior to be more applicable. Finally, enhanced processing is introduced by adopting nonlinear contrast stretching, which improves the visual effect of dehazing images. The experimental results show that the proposed method can achieve a faster processing speed, effectively improve the visibility and contrast of the restored image, and obtain good color effect. 2017 IEEE.
Number of references:12
Main heading:Image enhancement
Controlled terms:Demulsification - Design
Uncontrolled terms:Atmospheric particles - Atmospheric scattering models - Contrast stretching - Dark channel priors - Image dehazing - Initial estimation - Nonlinear - Single image dehazing
Classification code:802.3 Chemical Operations
DOI:10.1109/ICCWAMTIP.2017.8301472
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<471>
Accession number:20174104243114
Title:Quantifying and detecting collective motion by manifold learning
Authors:Wang, Qi (1); Chen, Mulin (1); Li, Xuelong (2)
Author affiliation:(1) School of Computer Science, Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Corresponding author:Wang, Qi(crabwq@gmail.com)
Source title:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Abbreviated source title:AAAI Conf. Artif. Intell., AAAI
Part number:1 of 1
Issue title:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Issue date:2017
Publication year:2017
Pages:4292-4298
Language:English
Document type:Conference article (CA)
Conference name:31st AAAI Conference on Artificial Intelligence, AAAI 2017
Conference date:February 4, 2017 - February 10, 2017
Conference location:San Francisco, CA, United states
Conference code:130407
Sponsor:Amazon; Artificial Intelligence; Baidu; et al.; IBM; Tencent
Publisher:AAAI press
Abstract:The analysis of collective motion has attracted many researchers in artificial intelligence. Though plenty of works have been done on this topic, the achieved performance is still unsatisfying due to the complex nature of collective motions. By investigating the similarity of individuals, this paper proposes a novel framework for both quantifying and detecting collective motions. Our main contributions are threefold: (1) the time-varying dynamics of individuals are deeply investigated to better characterize the individual motion; (2) a structure-based collectiveness measurement is designed to precisely quantify both individual-level and scene-level properties of collective motions; (3) a multi-stage clustering strategy is presented to discover a more comprehensive understanding of the crowd scenes, containing both local and global collective motions. Extensive experimental results on real world data sets show that our method is capable of handling crowd scenes with complicated structures and various dynamics, and demonstrate its superior performance against state-of-the-art competitors.
Copyright ？ 2017, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved.
Number of references:31
Main heading:Motion analysis
Controlled terms:Artificial intelligence
Uncontrolled terms:Collective motions - Complicated structures - Individual levels - Manifold learning - Multi-stage clustering - State of the art - Structure-based - Time-varying dynamics
Classification code:723.2 Data Processing and Image Processing - 723.4 Artificial Intelligence
Funding details: Number: 2015JM6264, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 61379094, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:?Qi Wang is the corresponding authors. This work is supported by the National Natural Science Foundation of China under Grant 61379094 and Natural Science Foundation Research Project of Shaanxi Province under Grant 2015JM6264. Copyright ?c 2017, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<472>
Accession number:20174304293547
Title:Measurement Method and Device for Transient Thermal Impedance of High Power IGBT Module
Authors:Lu, Guoquan (1, 2); Li, Jie (1); Mei, Yunhui (1); Li, Xin (1); Wang, Lei (3)
Author affiliation:(1) School of Materials Science and Engineering, Tianjin University, Tianjin; 300350, China; (2) State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) School of Chemical Engineering and Technology, Tianjin University, Tianjin; 300350, China
Corresponding author:Mei, Yunhui(yunhui@tju.edu.cn)
Source title:Tianjin Daxue Xuebao (Ziran Kexue yu Gongcheng Jishu Ban)/Journal of Tianjin University Science and Technology
Abbreviated source title:Tianjin Daxue Xuebao (Ziran Kexue yu Gongcheng Jishu Ban)
Volume:50
Issue:7
Issue date:July 15, 2017
Publication year:2017
Pages:669-675
Language:Chinese
ISSN:04932137
CODEN:TCHHA9
Document type:Journal article (JA)
Publisher:Tianjin University
Abstract:To characterize the thermal performance of high power insulated gate bipolar transistor(IGBT)module, a transient thermal impedance measurement device based on the electrical method for IGBT module was designed and built. By changing heating pulse duration of the measurement device equal to the thermal time constants of different material layers, the effective thermal conduction paths in IGBT module can be controlled and the transient thermal impedance of each component within the IGBT module can be obtained. In addition, the impacts of the transient noise in the instant transformation of high-low level and the boundary heat condition on measurement accuracy were discussed. Results show that the device has good accuracy and repeatability, which will prove useful in analyzing the thermal dispersion performance of different devices and packaging materials under transient conditions accurately and nondestructively and guiding the IGBT module structure design and packaging material selection. 2017, Editorial Board of Journal of Tianjin University(Science and Technology). All right reserved.
Number of references:16
Main heading:Insulated gate bipolar transistors (IGBT)
Controlled terms:Dispersions - Error analysis - Packaging materials - Power quality
Uncontrolled terms:Accuracy and repeatabilities - Electrical methods - Igbt-modules - Insulated gate bipolar transistor modules - K factor - Measurement accuracy - Thermal time constants - Transient thermal impedances
Classification code:694.2 Packaging Materials - 706.1.2 Electric Power Distribution - 714.2 Semiconductor Devices and Integrated Circuits - 951 Materials Science
DOI:10.11784/tdxbz201606072
Funding details: Number: ,13ZCZDGX01106, Acronym: -, Sponsor: -;Number: ,2015AA034501, Acronym: -, Sponsor: -;Number: ,61334010, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:收稿日期：2016-06-29；修回日期：2016-09-09. 作者简介：陆国权（1963— ），男，博士，教授，gqlu@vt.edu. 通讯作者：梅云辉，yunhui@tju.edu.cn. 网络出版时间：2016-10-28. 网络出版地址：http://www.cnki.net/kcms/detail/12.1127.N.20161028.1421.002.html. 基金项目：国家高技术研究发展计划(863 计划)资助项目(2015AA034501)；国家自然科学基金资助项目(61334010)；天津市科技支撑 计划资助项目(13ZCZDGX01106)；瞬态光学与光子技术国家重点实验室开放课题资助项目(SKLST201607). Supported by the National High Technology Research and Development Program of China(No.,2015AA034501) , the National Natural Science Foundation of China(No.,61334010), the Key Technologies R&D Program of Tianjin(No.,13ZCZDGX01106) and the Opening Project of Chinese State Key Laboratory of Transient Optics and Photonics(No.,SKLST201607).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<473>
Accession number:20180304654855
Title:Modal simulation and experimental verification of space-borne two dimensional turntable
Authors:Zou, Dinghua (1, 2); Li, Zhiguo (1); Liu, Zhaohui (1); Cui, Kai (1); Zhang, Yongqiang (1, 2); Zhou, Liang (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No. 17 Information Avenue, Chang'an District, Xi'an; 710119, China; (2) University of Chinese, Academy of Sciences, No. 19 Yuquan Road, Shijingshan District, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10463
Part number:1 of 1
Issue title:AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Issue date:2017
Publication year:2017
Article number:1046317
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614079
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133232
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:In order to avoid the resonance between the two dimensional turntable and the satellite, the modal simulation of the two dimensional turntable is carried out in this paper. And the simulation results are compared with the experimental results, combined with modal experiment, the simulation results before and after optimization are further verified. Firstly, two dimensional turntable as the research object in this paper, and it is modeled with the finite element method, then we use Patran/Nastran to conduct the modal simulation. In the modal simulation process, the bearing can be equivalent to the spring element, and the MPC element is used to instead of the spring element. And we introduce the modeling method of the MPC unit, the fundamental frequency of two dimensional turntable is obtained through modal simulation. At last, the model experiment is verified by hammering method, the frequency response functions in each direction of x, y and z are measured. Simulations and experimental results show: after optimization, the fundamental frequency of the two dimensional turntable is 42 Hz, which is higher than that of the base frequency 25 Hz, illustrating that the optimized structural design of the two dimensional turntable meets the requirements; The natural frequency and the experimental errors of three-dimensional turntable in x, y, z are 5%, which shows that MPC can simulate the bearing accurately, and is suitable for the simulation of two dimensional turntable. 2017 SPIE.
Number of references:11
Main heading:Finite element method
Controlled terms:Bearings (structural) - Earth (planet) - Frequency response - Natural frequencies - Satellites - Structural design
Uncontrolled terms:Base frequencies - Experimental errors - Frequency response functions - Fundamental frequencies - hammering method - Modal simulation - Model experiments - Two-dimensional turntables
Classification code:408.1 Structural Design, General - 408.2 Structural Members and Shapes - 655.2 Satellites - 921.6 Numerical Methods
Numerical data indexing:Frequency 2.50e+01Hz, Frequency 4.20e+01Hz, Percentage 5.00e+00%
DOI:10.1117/12.2284587
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<474>
Accession number:20180404671010
Title:Small target detection in infrared image using convolutional neural networks
Authors:Wang, Wanting (1); Qin, Hanlin (1); Cheng, Wenxiong (1); Wang, Chunmei (1); Leng, Hanbing (2); Zhou, Huixin (1)
Author affiliation:(1) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710071, China; (2) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China
Corresponding author:Qin, Hanlin(hlqin@mail.xidian.edu.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:1046250
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Infrared small target detection is an important research topic in the field of infrared image processing and has a major impact on applications in areas such as remote sensing, infrared imaging precise. Due to atmospheric scattering, refraction and the effect of the lens, the infrared detector to receive the target information very weak, it's difficult to detect the small target in complex background. In this paper, a novel small target detection method in a single infrared image is proposed based on deep convolutional neural network that is mainly using to extract the features of target, through the method can obtain more discriminative features of infrared image. Firstly, the off-line training of convolution kernel parameters using open data sets and simulated data sets, the result of preliminary training gives an initial convolution kernel, this step can reduce the time required for parameter training. Secondly, the input infrared image is preliminarily processed by the trained parameters to obtain the primary features of the infrared image, through the processing of the convolution kernel, a large number of feature information in different scales of the input image are obtained. Finally, selecting and merging the features, design the efficient characteristic information selection strategy, then fine-Tune the convolution parameters with the result information, by merging the feature graph can realize the output of the result target image. The experimental results demonstrated that compared with existing classical methods, the proposed method could greatly improve the quality of the results, more importantly, our method can directly achieve the end-To-end mapping between the input images and target detection results. 2017 SPIE.
Number of references:18
Main heading:Feature extraction
Controlled terms:Convolution - Deep neural networks - Image enhancement - Infrared imaging - Merging - Neural networks - Optical data processing - Remote sensing - Target tracking - Thermography (imaging)
Uncontrolled terms:Atmospheric scattering - Convolutional networks - Convolutional neural network - Deep convolutional neural networks - Discriminative features - Feature map - Infrared small targets - Small target detection
Classification code:716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing - 742.1 Photography - 746 Imaging Techniques
DOI:10.1117/12.2285689
Funding details: Number: 2017JM6079, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Provincial Department of Education;Number: 614102033306, Acronym: -, Sponsor: Ministry of Education;Number: LSIT201503, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61401343, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work is co-supported by the National Natural Science Foundation of China (61401343), the Joint Funds for the Ministry of Education (614102033306), the National Natural Science Foundation of Shaanxi Provincial (2017JM6079), the Open Research Fund of Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences (LSIT201503).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<475>
Accession number:20172103691501
Title:3D thermal analysis of end-pumped Nd3+-doped index-crossover gain guided-index antiguided fiber laser
Authors:Zhang, Weitao (1); Shen, Xiao (1, 2); Liu, Jiaxi (1); Wei, Wei (1)
Author affiliation:(1) College of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu; 210023, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian, Shanxi; 710119, China
Source title:Laser Physics
Abbreviated source title:Laser Phys.
Volume:27
Issue:6
Issue date:June 2017
Publication year:2017
Article number:065101
Language:English
ISSN:1054660X
E-ISSN:15556611
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:Improved rate equations are established for the new model of index-crossover gain guided-index antiguided (IGG-IAG) fiber, then the pump and signal light power distribution along the IGG-IAG fiber are investigated. Based on the thermal conduction equations, the 3D temperature distributions of a one-end-pumped and dual-end-pumped Nd3+-doped IGG-IAG fiber laser are further analyzed. The simulation results show that many factors have an important influence on fiber temperature. The temperature of the fiber with the dual-end-pump method is obviously lower than that with the one-end-pump method, and the temperature distribution is more uniform. The larger the R value, the lower the fiber temperature, and the smaller the -Δn, the lower the fiber temperature. Thus proper fiber parameters and pump scheme may help to reduce the fiber temperature. 2017 Astro Ltd.
Number of references:17
Main heading:Fibers
Controlled terms:Fiber lasers - Pumping (laser) - Temperature distribution - Thermoanalysis
Uncontrolled terms:3d temperature distributions - 3D thermal analysis - Doped fiber - Fiber parameters - Gain-guided index antiguided fibers - Index antiguided - Rate equations - Thermal conduction equation
Classification code:641.1 Thermodynamics - 744.1 Lasers, General - 744.4 Solid State Lasers - 801 Chemistry
DOI:10.1088/1555-6611/aa6991
Funding details: Number: NY214125, Acronym: NUPT, Sponsor: Nanjing University of Posts and Telecommunications;Number: NY215142, Acronym: NUPT, Sponsor: Nanjing University of Posts and Telecommunications;Number: SKLST201405, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61077070, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China (No. 61077070), the Open Research Fund of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences (No. SKLST201405), Nanjing University of Posts and Telecommunications Research Fund (No. NY214125, NY215142).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<476>
Accession number:20173103998760
Title:Nonresonant background suppression in wide-field coherent anti-Stokes Raman scattering microscopy with transport of intensity equation based phase imaging
Authors:Zheng, Juan-Juan (1); Yao, Bao-Li (2); Shao, Xiao-Peng (1)
Author affiliation:(1) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710071, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Yao, Bao-Li(yaobl@opt.ac.cn)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:11
Issue date:June 5, 2017
Publication year:2017
Article number:114206
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:Coherent anti-Stokes Raman scattering (CARS) microscopy is a valuable tool for label-free imaging of biological samples, since it enables providing contrast via vibrational resonances of a specific chemical bond. However, in a conventional CARS image the Raman resonant anti-Stokes radiation is often superimposed by a nonresonant contribution arising from the electronic part of the polarization. The situation becomes worse if a sample is composed of a significant amount of water, where a strong nonresonant background over the whole image is obtained. To date, various approaches including Epi, polarization sensitive, time-resolved, and CARS phase imaging have been implemented to suppress the undesirable nonresonant background in CARS microscopy. Notably, optical heterodyne based phase imaging schemes are of particular interest due to their intrinsic ability to retrieve Im(χ(3)), which is proportional to the Raman resonant signal. Nevertheless, all the reported phase imaging methods that require an independent reference wave lead to an increase in the setup complexity, thus making the measurement sensitive to external perturbations. In order to simplify the setup, single-beam scheme has also been utilized for vibrational CARS imaging by using wave-front sensors to acquire the phase of the complex anti-Stokes amplitude. However, this method demands highly accurate wave-front sensors. In this paper we present a reference-less CARS phase imaging technique to suppress nonresonant CARS background based on transport of intensity equation (TIE). Resonant CARS radiation E
Number of references:34
Main heading:Raman scattering
Controlled terms:CCD cameras - Coherent scattering - Molecular vibrations - Optical heterodyning - Polarization - Raman spectroscopy - Wavefronts
Uncontrolled terms:Coherent anti-Stokes Raman scattering microscopy - Coherent imaging - Environmental disturbances - Nonresonant - Phase imaging - Phase imaging techniques - Transport of intensity equation (TIE) - Transport of intensity equations
Classification code:711 Electromagnetic Waves - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 801.4 Physical Chemistry
DOI:10.7498/aps.66.114206
Funding details: Number: -, Acronym: -, Sponsor: Carl-Zeiss-Stiftung;Number: -, Acronym: -, Sponsor: Thüringer Ministerium für Bildung, Wissenschaft und Kultur;Number: FKZ:13N10508, Acronym: BMBF, Sponsor: Bundesministerium für Bildung und Forschung;Number: B578-06001, Acronym: -, Sponsor: -;Number: B714-07037, Acronym: -, Sponsor: -;Number: JBG160502, Acronym: -, Sponsor: -;Number: XJS16005, Acronym: -, Sponsor: -;Number: JB160511, Acronym: -, Sponsor: -;Number: 61377008, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61575154, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61475187, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61605150, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Project supported by the National Natural Science Foundation of China (Grant Nos. 61605150, 61475187, 61575154, 61377008), the Fundamental Research Funds for the Central Universities, China (Grant Nos. JB160511, XJS16005, JBG160502), the 'Th?ringer Ministerium f?r Bildung, Wissenschaft und Kultur' (TMBWK, projects: B578-06001, 14.90 HWP, B714-07037), and the 'Carl Zeiss Stiftung' and the Federal Ministry of Education and Research, Germany (FKZ:13N10508).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<477>
Accession number:20180304654528
Title:Dwell time method based on Richardson-Lucy algorithm
Authors:Jiang, Bo (1, 2); Ma, Zhen (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China; (2) University of Chinese, Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10463
Part number:1 of 1
Issue title:AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Issue date:2017
Publication year:2017
Article number:104631M
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614079
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133232
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:When the noise in the surface error data given by the interferometer has no effect on the iterative convergence of the RL algorithm, the RL algorithm for deconvolution in image restoration can be applied to the CCOS model to solve the dwell time. By extending the initial error function on the edge and denoising the noise in the surface error data given by the interferometer, it makes the result more available. The simulation results show the final residual error 10.7912nm nm in PV and 0.4305 nm in RMS, when the initial surface error is 107.2414 nm in PV and 15.1331 nm in RMS. The convergence rates of the PV and RMS values can reach up to 89.9% and 96.0%, respectively. The algorithms can satisfy the requirement of fabrication very well. 2017 SPIE.
Number of references:7
Main heading:Iterative methods
Controlled terms:Deconvolution - Earth (planet) - Errors - Image reconstruction - Interferometers
Uncontrolled terms:Convergence rates - De-noising - Dwell time - Initial errors - L-algorithm - Residual error - Richardson-Lucy algorithms - Surface error
Classification code:921 Mathematics - 921.6 Numerical Methods - 941.3 Optical Instruments
Numerical data indexing:Percentage 8.99e+01%, Percentage 9.60e+01%, Size 1.07e-07m, Size 1.51e-08m, Size 4.31e-10m
DOI:10.1117/12.2285646
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<478>
Accession number:20171003409222
Title:Significant improvement of gamma radiation resistance in CeO
Authors:He, Quanlong (1, 2); Wang, Pengfei (1); Sun, Mengya (1, 2); Lu, Min (1); Peng, Bo (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi'an; 710119, China; (2) University of Chinese Academy of Sciences (UCAS), Beijing; 100049, China
Corresponding author:Wang, Pengfei(pfwang@opt.ac.cn)
Source title:Optical Materials Express
Abbreviated source title:Opt. Mater. Express
Volume:7
Issue:3
Issue date:March 1, 2017
Publication year:2017
Pages:1113-1121
Language:English
E-ISSN:21593930
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We show that the gamma radiation resistances of new type of phosphate glass can be greatly improved by CeO2 and Sb
Number of references:28
Main heading:Antimony compounds
Controlled terms:Cerium oxide - Gamma rays - Glass - Optical fiber communication - Optical glass
Uncontrolled terms:1064 nm - 1550 nm - Co-doping - Exposed to - Phosphate glass - Radiation resistance - Star cameras
Classification code:717.1 Optical Communication Systems - 812.3 Glass - 931.3 Atomic and Molecular Physics
Numerical data indexing:Percentage 5.64e+01% to 6.19e+01%, Percentage 5.74e+01% to 7.39e+01%, Percentage 9.24e+01%, Size 1.06e-06m, Size 1.55e-06m, Size 3.85e-07m, Size 5.25e-07m
DOI:10.1364/OME.7.001113
Funding details: Number: -, Acronym: -, Sponsor: Youth Innovation Promotion Association of the Chinese Academy of Sciences;Number: 2015JM6315, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61307046, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC) (61307046); Natural Science Basic Research Project in Shaanxi Province (2015JM6315), China; West Young Scholars Program of the Chinese Academy of Sciences (CAS), China; Youth Innovation Promotion Association CAS, China. The authors would like to thank Dr. Guoping Dong in State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, for his help on EPR measurements.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<479>
Accession number:20171203475341
Title:Traveling wave deflector design for femtosecond streak camera
Authors:Pei, Chengquan (1); Wu, Shengli (1); Luo, Duan (2, 3); Wen, Wenlong (2); Xu, Junkai (2, 3); Tian, Jinshou (2, 5); Zhang, Minrui (2, 3); Chen, Pin (2, 3); Chen, Jianzhong (1); Liu, Rong (4)
Author affiliation:(1) Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an; 710049, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China; (4) Xian Technological University, Xi'an; 710021, China; (5) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; Shanxi; 030006, China
Corresponding author:Tian, Jinshou(tianjs@opt.ac.cn)
Source title:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Abbreviated source title:Nucl Instrum Methods Phys Res Sect A
Volume:855
Issue date:May 21, 2017
Publication year:2017
Pages:148-153
Language:English
ISSN:01689002
CODEN:NIMAER
Document type:Journal article (JA)
Publisher:Elsevier B.V.
Abstract:In this paper, a traveling wave deflection deflector (TWD) with a slow-wave property induced by a microstrip transmission line is proposed for femtosecond streak cameras. The pass width and dispersion properties were simulated. In addition, the dynamic temporal resolution of the femtosecond camera was simulated by CST software. The results showed that with the proposed TWD a femtosecond streak camera can achieve a dynamic temporal resolution of less than 600 fs. Experiments were done to test the femtosecond streak camera, and an 800 fs dynamic temporal resolution was obtained. Guidance is provided for optimizing a femtosecond streak camera to obtain higher temporal resolution. 2017 Elsevier B.V.
Number of references:10
Main heading:Streak cameras
Controlled terms:Electric lines - Microstrip lines
Uncontrolled terms:Dispersion properties - Femtoseconds - Microstrip transmission lines - Slow wave - Temporal resolution - Traveling wave
Classification code:706.2 Electric Power Lines and Equipment - 742.2 Photographic Equipment
Numerical data indexing:Time 6.00e-13s, Time 8.00e-13s
DOI:10.1016/j.nima.2017.02.062
Funding details: Number: 61501363, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 2016JQ6013, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by National Science Foundation of China Grant nos. (61501363, 2016JQ6013).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<480>
Accession number:20171703607586
Title:Crystal structure and optical properties of a neodymium trifluoroacetate complex for liquid laser
Authors:She, Jiangbo (1); Nie, Rongzhi (1); Sun, Xin (2); Peng, Bo (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), City Xi'an, Shaanxi; 710119, China; (2) School of Physics and Information Technology, Shannxi Normal University, Xi'an; 710062, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102564Z
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:The neodymium trifluoroacetate complex was synthesized and characterized by single-crystal X-ray diffraction, elemental and TG analysis, FT-IR spectra, and PL spectra. The optical properties of the liquid medium were studied. From the absorption and luminescence spectra, the Judd-Ofelt parameters of the Nd(CF
Number of references:15
Main heading:Neodymium compounds
Controlled terms:Crystal structure - Judd-Ofelt theory - Liquid lasers - Liquids - Luminescence - Optical properties - Photonics - Single crystals - X ray diffraction
Uncontrolled terms:Emission cross section - Fluorescence transitions - Intensity parameters - Judd-Ofelt - Judd-Ofelt parameters - Luminescence spectrum - Single crystal x-ray diffraction - Trifluoroacetates
Classification code:741.1 Light/Optics - 744.3 Liquid Lasers - 931.3 Atomic and Molecular Physics - 933.1 Crystalline Solids - 933.1.1 Crystal Lattice
DOI:10.1117/12.2260699
Funding details: Number: 61308086, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 2016JQ6016, Acronym: CACMS, Sponsor: China Academy of Chinese Medical Sciences;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was financially supported by the National Natural Science Foundation of China (NSFC, 61308086), West Light Foundation of The Chinese Academy of Sciences and Natural Science Basic Research Plan in Shaanxi Province of China (No: 2016JQ6016).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<481>
Accession number:20173103998755
Title:Target reconstruction algorithm for four-beam sheared coherent imaging
Authors:Lu, Chang-Ming (1, 2, 3); Chen, Ming-Lai (1); Luo, Xiu-Juan (1); Zhang, Yu (1); Liu, Hui (1); Lan, Fu-Yang (1, 2); Cao, Bei (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Beijing Institute of Tracking and Telecommunications Technology, Beijing; 100049, China
Corresponding author:Chen, Ming-Lai(shuxuemlchen@163.com)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:11
Issue date:June 5, 2017
Publication year:2017
Article number:114201
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:Sheared-beam imaging, which is a nonconventional coherent laser imaging technique, can be used to better solve the problem of taking pictures with high resolution for remote targets through turbulent medium than conventional optical methods. In the previous research on this technique, a target was illuminated by three coherent laser beams that were laterally arranged at the transmitter plane into an L pattern. In order to obtain a high quality image, a series of time-varying scattered signals is collected to reconstruct speckled images of the same object. To overcome atmospheric turbulence, multiple sets of three-beam laser should be emitted, which increases data acquisition time. In this paper, aiming at the quasi real-time problem of conventional sheared beam imaging technique, we use four-beam laser with rectangular distribution instead of the traditional L type sheared three-beam laser to illuminate the target. According to this, we propose a target reconstruction algorithm for four-beam sheared coherent imaging to reconstruct four target images simultaneously in one measurement, which can acquire high quality images by reducing the amount of measurement and the speckle noise. Meanwhile, it can greatly reduce the amount of beam switching in multi-group emission and improve the imaging efficiency. Firstly, the principle of the four-beam sheared coherent imaging technique is deduced. Secondly, in the algorithm, the speckle amplitude and phase difference frames can be extracted accurately by searching for the accurate positions of the beat frequency components. Based on the speckle phase difference frames, four sets of wavefront phases can be demodulated by the least squares method, and wavefront amplitude can be obtained by algebraic operation of speckle amplitude. The reconstructed wavefront is used for inverse Fourier transform to yield a two-dimensional image. A series of speckled images is averaged to form an incoherent image. Finally, the validity of the proposed technique is verified by simulations. From the simulation results, the image quality of the proposed method is better than that of the traditional method in the same amount of measurement. Furthermore, on the premise of the same image quality, the data acquisition amount of the proposed method is 2-3 times as large as that of the traditional method. In other words, compared with that of the traditional method, the data acquisition time of the proposed method is reduced at least by half and the algorithm processing time is less. It can be concluded that the proposed imaging technique can not only improve the efficiency of target reconstruction, but also present a better way of imaging the remote moving targets. 2017 Chinese Physical Society.
Number of references:21
Main heading:Image quality
Controlled terms:Algebra - Atmospheric turbulence - Computerized tomography - Data acquisition - Efficiency - Image reconstruction - Inverse problems - Laser beams - Least squares approximations - Speckle - Wavefronts
Uncontrolled terms:Coherent imaging - Four-beam - Imaging efficiency - Inverse Fourier transforms - Laser imaging techniques - Reconstruction algorithms - Rectangular distributions - Two dimensional images
Classification code:443.1 Atmospheric Properties - 723.2 Data Processing and Image Processing - 723.5 Computer Applications - 741.1 Light/Optics - 744.8 Laser Beam Interactions - 913.1 Production Engineering - 921.1 Algebra - 921.6 Numerical Methods
DOI:10.7498/aps.66.114201
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<482>
Accession number:20174204280614
Title:Recent progress of high-coherence ultrafast electron sources
Authors:Luo, Duan (1, 2, 3); Hui, Dan-Dan (1, 2, 3); Wen, Wen-Long (1); Liu, Rong (4); Wang, Xing (1); Tian, Jin-Shou (1, 3)
Author affiliation:(1) Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China; (4) School of Optoelectronic Engineering, Xi'an Technological University, Xi'an; 710032, China
Corresponding author:Wang, Xing(wangxing@opt.ac.cn)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:15
Issue date:August 5, 2017
Publication year:2017
Article number:152901
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:Microscopic dynamic process of material structure which determines the inherent property of substance takes place on a molecular and atomic scale. Understanding the underlying mechanisms of the various fundamental processes has always been the goal of chemistry, physics, biology and materials science. With Ahmed Zewail's pioneering work in the field of femtoscience, the time-resolved electron diffraction, combining the pump-probe and electron diffraction technique, has become an excellent tool with sufficient temporal precision to directly deliver insights into ultrafast phenomena on an atomic level. Central to this method is the ultrashort electron pulses generated from a metal photocathode. However, up to now, owing to the initial size, effective temperature, energy dispersion and inherent coulomb repulsion of electron source, the state-of-the-art transverse coherence of conventional planar cathode photoemission source is still insufficient to resolve the complex chemical and biological organic molecules. Hence, in recent years, many efforts have focused on developing high-coherence ultrashort electron sources. The main methods include minimizing the initial beam size, weakening the space charge, reducing the effective temperature, and matching the photon energy of laser with the work function of cathode material. In this review, we firstly summarize the history and advantages of the electron probe, secondly sketch out the figure of merit of the electron source. And then taking coherence as the main line, we review recent progress in common planar photoemission sources, and discuss the latest development of tip-based electron sources and cold atom electron sources in terms of their generation mechanisms, unique properties and research progress. Finally, the development and future applications of the diffraction technique are prospected. In general, the high-coherence length of photoelectric surface source is often at the expense of the current. The needle source can obtain the highest coherence length, but it is similar to femtosecond single-electron pulse, which must be less than one electron per pulse to eliminate the electron-electron coulomb interaction. Thus, a diffraction pattern can only be formed by accumulating millions of shots. The cold atom electron source, which has a transverse coherence greater than 15 nm and a peak brightness similar to conventional electron source's, is sufficient for some molecular systems in biochemistry. In short, with the improvement of coherence and the emergence of new electron sources, it is possible to reveal complex organic and inorganic structures, especially the dynamic behaviors of protein, and promote the understanding of nanoscale energy transport, solid-liquid and solid-gas interfacial dynamics and chemical reaction and so on. High-coherence electron sources not only serve in the diffraction experiments, but also play a key role in developing ultrafast electron microscopy, coherent diffraction imaging and ptychography. 2017 Chinese Physical Society.
Number of references:147
Main heading:Electrons
Controlled terms:Atoms - Cathodes - Dispersions - Dynamics - Electron diffraction - Electron sources - Photoemission - Probes - Temperature
Uncontrolled terms:Coherent diffraction imaging - Cold atoms - Diffraction techniques - Effective temperature - Molecular movie - Single electron pulse - Time-resolved electron diffraction - Ultrafast electron microscopy
Classification code:641.1 Thermodynamics - 701.1 Electricity: Basic Concepts and Phenomena - 931.3 Atomic and Molecular Physics - 951 Materials Science
Numerical data indexing:Size 1.50e-08m
DOI:10.7498/aps.66.152901
Funding details: Number: 11304374, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61501363, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant Nos. 11304374, 61501363) and the Natural Science Basic Research Plan in Shaanxi Province of China (Grant No. 2016JQ6013).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<483>
Accession number:20173204017073
Title:Ultrafast pulse generation with black phosphorus solution saturable absorber
Authors:Li, Lu (1, 2); Wang, Yonggang (1); Wang, Xi (3)
Author affiliation:(1) School of Physics and Information Technology, Shaanxi Normal University, Xi'an, 710119, China; (2) School of Science, Xi'An University of Posts and Telecommunications, Xi'an, 710121, China; (3) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an; 710119, China
Corresponding author:Wang, Yonggang(chinawygxjw@snnu.edu.cn)
Source title:Laser Physics
Abbreviated source title:Laser Phys.
Volume:27
Issue:8
Issue date:August 2017
Publication year:2017
Article number:085104
Language:English
ISSN:1054660X
E-ISSN:15556611
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:The study presents the mode-locked Er-doped fiber (EDF) laser with a black phosphorus (BP) solution saturable absorber (SSA). The saturable absorber (SA) is fabricated based on a D-shaped fiber (DF) embedded in BP nanosheets N-Methylpyrrolidone solution. Such a BP solution method has the virtues of good antioxidant capacity, high heat dissipation and high damage threshold. This kind of SA shows a modulation depth of 7.75% and a nonsaturable loss of 10%. By employing the EDF-BP SSA, a repetition rate of 15.2 MHz mode-locked fiber laser is achieved. The pulse duration is 580 fs and the signal-to-noise ratio is 65 dB. The results indicate that the DF-BP solution can work as a potential SA for ultrafast nonlinear optics. 2017 Astro Ltd.
Number of references:42
Main heading:Saturable absorbers
Controlled terms:Fiber lasers - Fibers - Locks (fasteners) - Mode-locked fiber lasers - Nonlinear optics - Optical materials - Phosphorus - Signal to noise ratio
Uncontrolled terms:Antioxidant capacity - Damage threshold - Modulation depth - N-methylpyrrolidone - Non-linear optical material - Non-saturable loss - Ultra-fast pulse generation - Ultrafast nonlinear optics
Classification code:716.1 Information Theory and Signal Processing - 741.1.1 Nonlinear Optics - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 744.4 Solid State Lasers - 804 Chemical Products Generally
Numerical data indexing:Decibel 6.50e+01dB, Frequency 1.52e+07Hz, Percentage 1.00e+01%, Percentage 7.75e+00%, Time 5.80e-13s
DOI:10.1088/1555-6611/aa7486
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<484>
Accession number:20181104902438
Title:A novel ACM for segmentation of medical image with intensity inhomogeneity
Authors:Niu, Yuefeng (1, 2); Cao, Jianzhong (1); Liu, Liqiang (1, 2); Guo, Huinan (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China; (2) University of Chinese, Academy of Sciences, Beijing, China
Source title:2017 2nd IEEE International Conference on Computational Intelligence and Applications, ICCIA 2017
Abbreviated source title:IEEE Int. Conf. Comput. Intell. Appl., ICCIA
Volume:2017-January
Part number:1 of 1
Issue title:2017 2nd IEEE International Conference on Computational Intelligence and Applications, ICCIA 2017
Issue date:December 4, 2017
Publication year:2017
Pages:308-311
Language:English
ISBN-13:9781538620304
Document type:Conference article (CA)
Conference name:2nd IEEE International Conference on Computational Intelligence and Applications, ICCIA 2017
Conference date:September 8, 2017 - September 11, 2017
Conference location:Beijing, China
Conference code:133504
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:This paper presents a scheme of improvement on the Li's model in terms of intensity inhomogeneous images. By introducing local entropy to Li's model, our method is able to segment medical images with intensity inhomogeneity and estimate the bias field simultaneously. The level set energy function is redefined as a weighted energy integral, where the weight is local entropy deriving from a grey level distribution of image. The total energy functional is then incorporated into a level set formulation. Experimental results on test images show that our approach outperforms the existing locally statistical active contour model (LSACM) and Li's model in terms of accuracy and efficiency with less central processing unit (CPU) time. 2017 IEEE.
Number of references:16
Main heading:Image segmentation
Controlled terms:Artificial intelligence - Entropy - Image enhancement - Medical image processing - Medical imaging - Program processors
Uncontrolled terms:Active contour model - Grey-level distributions - Intensity inhomogeneity - Level Set - Level set formulations - Local entropy - Segmentation of medical images - Total energy functional
Classification code:641.1 Thermodynamics - 723.2 Data Processing and Image Processing - 723.4 Artificial Intelligence - 746 Imaging Techniques
DOI:10.1109/CIAPP.2017.8167228
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<485>
Accession number:20174704432668
Title:Hardware design of video compression system based on TMS320DM368
Authors:He, Bian (1); Lei, Yang (1); Jiawen, Liao (1); Jia, Feng (1); Hao, Wang (1); Hua, Wang (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Source title:Proceedings - 9th International Conference on Intelligent Human-Machine Systems and Cybernetics, IHMSC 2017
Abbreviated source title:Proc. - Int. Conf. Intell. Hum.-Mach. Syst. Cybern., IHMSC
Volume:2
Part number:2 of 2
Issue title:Proceedings - 9th International Conference on Intelligent Human-Machine Systems and Cybernetics, IHMSC 2017
Issue date:September 20, 2017
Publication year:2017
Pages:294-297
Article number:8048162
Language:English
ISBN-13:9781538630228
Document type:Conference article (CA)
Conference name:9th International Conference on Intelligent Human-Machine Systems and Cybernetics, IHMSC 2017
Conference date:August 26, 2017 - August 27, 2017
Conference location:Hangzhou, Zhejiang, China
Conference code:130925
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:HD video data is visible in the real-Time compression processing is one of the key technologies, The current video compression codec hardware platform mainly includes: ASIC, DSP and SoC. These three kinds of SOC chips have become the mainstream of the codec chip market because of their low cost, low power consumption and high integration. According to Da Vinci of TI processor TMS320DM368 as the core architecture, The hardware system of high definition video compression processing based on embedded technology is designed, which includes video input ISIF interface module, communication module, core processor module, peripheral circuit module and power module. This system supports 1080P30 HD video capture hardware frame, H.264 encoding compression and local storage, can be widely used in industrial control, medical, aerospace and other industries, has important application value in engineering. 2017 IEEE.
Number of references:10
Main heading:Image compression
Controlled terms:Computer architecture - Cybernetics - Digital storage - Digital television - Hardware - Integrated circuit design - Man machine systems - Programmable logic controllers - System-on-chip - Video signal processing
Uncontrolled terms:H.264 - Hardware design - High-definition video compression - Low-power consumption - Real-time compression - TMS320DM368 - Video compression codecs - Video compression systems
Classification code:605 Small Tools and Hardware - 714.2 Semiconductor Devices and Integrated Circuits - 716.4 Television Systems and Equipment - 722.1 Data Storage, Equipment and Techniques - 732.1 Control Equipment
DOI:10.1109/IHMSC.2017.178
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<486>
Accession number:20180304660949
Title:SiC power MOSFET with monolithically integrated Schottky barrier diode for improved switching performances
Authors:Dai, Xiaoping (1); Jiang, Huaping (2); Zheng, Changwei (2); Ke, Maolong (3)
Author affiliation:(1) State Key Laboratory of Advanced Power Semiconductor Devices, Zhuzhou CRRC Time S Electric Co. Ltd., China; (2) Dynex Semiconductor Ltd., United Kingdom; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, China
Source title:PCIM Europe 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
Abbreviated source title:PCIM Europe - Int. Exhib. Conf. Power Electron., Intel. Motion, Renew. Energy Energy Manag.
Part number:1 of 1
Issue title:PCIM Europe 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
Issue date:2017
Publication year:2017
Article number:7990787
Language:English
ISBN-13:9783800744244
Document type:Conference article (CA)
Conference name:2017 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2017
Conference date:May 16, 2017 - May 18, 2017
Conference location:Nuremberg, Germany
Conference code:132096
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:A power Silicon Carbide (SiC) Metal Oxide Semiconductor Field Effect Transistor (MOSFET) featuring a monolithically integrated Schottky Barrier Diode (SBD) is proposed in this paper. The proposed structure is optimized to suppress the electric field in the gate oxide under reverse blocking state, which is beneficial to enhancing the gate oxide long term reliability. Both the static and switching characteristics are studied by TCAD simulation using Sentaurus. Compared to the conventional MOSFET-SBD pair, the proposed device shows not only lower switching loss but also smaller current overshoot during the turn on process. VDE VERLAG GMBH · Berlin · Offenbach.
Number of references:4
Main heading:Power MOSFET
Controlled terms:Electric fields - Electron beam lithography - Energy management - Gates (transistor) - Intelligent robots - Metals - Monolithic integrated circuits - MOS devices - Oxide semiconductors - Schottky barrier diodes - Semiconducting silicon compounds - Semiconductor diodes - Silicon carbide - Wide band gap semiconductors
Uncontrolled terms:Current overshoot - Lower switching loss - Monolithically integrated - Schottky Barrier Diode(SBD) - SiC Power MOSFET - Silicon carbides (SiC) - Switching characteristics - Switching performance
Classification code:525 Energy Management and Conversion - 701.1 Electricity: Basic Concepts and Phenomena - 712.1.2 Compound Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 731.6 Robot Applications - 804.2 Inorganic Compounds
DOI:10.1109/SBMicro.2017.7990787
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<487>
Accession number:20172403790375
Title:High energy mode-locked Yb-doped fiber laser with Bi
Authors:Li, Lu (1); Wang, Yonggang (2, 3); Wang, Xi (3); Lin, Tao (4); Sun, Hang (4)
Author affiliation:(1) School of Science, Xi'an University of Posts and Telecommunications, Xi'an; 710121, China; (2) School of Physics and information Technology, Shaanxi Normal University, Xi'an; 710119, China; (3) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (4) Department of Electronic Engineering, Xi'an University of Technology, Xi'an; 710048, China
Corresponding author:Li, Lu(liluyoudian@163.com)
Source title:Optik
Abbreviated source title:Optik
Volume:142
Issue date:August 2017
Publication year:2017
Pages:470-474
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Elsevier GmbH
Abstract:The report presents the high energy mode-locking operation in an all-normal-dispersion Yb-doped mode-locked fiber laser based on evanescent field interaction with tapered fiber deposited with Bi
Number of references:29
Main heading:Mode-locked fiber lasers
Controlled terms:Bismuth compounds - Evanescent fields - Fiber lasers - Fibers - Laser mode locking - Locks (fasteners) - Pulsed laser deposition - Pulsed lasers - Q switched lasers - Saturable absorbers - Semiconductor quantum wells - Tellurium compounds - Ytterbium compounds
Uncontrolled terms:All normal dispersions - Field interactions - High energy modes - Non-saturable loss - Single pulse energy - Solution-processing - Topological insulators - Yb doped fiber laser
Classification code:701 Electricity and Magnetism - 714.2 Semiconductor Devices and Integrated Circuits - 744 Lasers
DOI:10.1016/j.ijleo.2017.06.029
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<488>
Accession number:20170803379991
Title:Latent Semantic Minimal Hashing for Image Retrieval
Authors:Lu, Xiaoqiang (1); Zheng, Xiangtao (1); Li, Xuelong (1)
Author affiliation:(1) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Source title:IEEE Transactions on Image Processing
Abbreviated source title:IEEE Trans Image Process
Volume:26
Issue:1
Issue date:January 2017
Publication year:2017
Pages:355-368
Article number:7740929
Language:English
ISSN:10577149
CODEN:IIPRE4
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Hashing-based similarity search is an important technique for large-scale query-by-example image retrieval system, since it provides fast search with computation and memory efficiency. However, it is a challenge work to design compact codes to represent original features with good performance. Recently, a lot of unsupervised hashing methods have been proposed to focus on preserving geometric structure similarity of the data in the original feature space, but they have not yet fully refined image features and explored the latent semantic feature embedding in the data simultaneously. To address the problem, in this paper, a novel joint binary codes learning method is proposed to combine image feature to latent semantic feature with minimum encoding loss, which is referred as latent semantic minimal hashing. The latent semantic feature is learned based on matrix decomposition to refine original feature, thereby it makes the learned feature more discriminative. Moreover, a minimum encoding loss is combined with latent semantic feature learning process simultaneously, so as to guarantee the obtained binary codes are discriminative as well. Extensive experiments on several well-known large databases demonstrate that the proposed method outperforms most state-of-the-art hashing methods. 1992-2012 IEEE.
Number of references:58
Main heading:Search engines
Controlled terms:Binary codes - Computational efficiency - Encoding (symbols) - Image retrieval - Learning systems - Nearest neighbor search - Semantics - Signal encoding
Uncontrolled terms:Geometric structure - Hashing - Image retrieval systems - Latent semantics - Matrix decomposition - Memory efficiency - Similarity search - State of the art
Classification code:716.1 Information Theory and Signal Processing - 723 Computer Software, Data Handling and Applications - 921.5 Optimization Techniques
DOI:10.1109/TIP.2016.2627801
Funding details: Number: LSIT201408, Acronym: -, Sponsor: -;Number: KGZD-EW-T03, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: QYZDB-SSW-JSC015, Acronym: -, Sponsor: -;Number: 61472413, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61472413, in part by the Key Research Program of the Chinese Academy of Sciences under Grant KGZD-EW-T03, in part by the Open Research Fund of the Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences under Grant LSIT201408, and in part by the Young Top-notch Talent Program of Chinese Academy of Sciences under Grant QYZDB-SSW-JSC015.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<489>
Accession number:20173504101986
Title:Online and Efficient Fabrication of Helical Long-Period Fiber Gratings
Authors:Ren, Kaili (1, 2); Ren, Liyong (1); Liang, Jian (1); Kong, Xudong (1); Ju, Haijuan (1); Wu, Zhaoxin (2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian; 710119, China; (2) Department of Electronics Science and Technology, School of Electronic and Information Engineering, Xian Jiaotong University, Xian; 710049, China
Corresponding author:Ren, Liyong(renliy@opt.ac.cn)
Source title:IEEE Photonics Technology Letters
Abbreviated source title:IEEE Photonics Technol Lett
Volume:29
Issue:14
Issue date:July 15, 2017
Publication year:2017
Pages:1175-1178
Article number:7938324
Language:English
ISSN:10411135
CODEN:IPTLEL
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:By taking the advantage of inherent core-cladding eccentricities in standard single-mode fibers, in this letter, we propose and demonstrate an efficient method to fabricate helical long-period fiber gratings (H-LPFGs) by directly twisting fibers. In the fabrication process, we use a double-beam CO
Number of references:27
Main heading:Diffraction gratings
Controlled terms:Carbon dioxide lasers - Fiber optic sensors - Optical fiber fabrication - Optical fibers - Single mode fibers
Uncontrolled terms:Fabrication method - Fabrication process - High extinction ratios - Long period fiber grating - Low insertion loss - Optical fiber applications - Optical vortex generations - Standard single mode fibers
Classification code:741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 744.2 Gas Lasers
Numerical data indexing:Decibel 1.00e+00dB, Decibel 3.00e+01dB
DOI:10.1109/LPT.2017.2711608
Funding details: Number: -, Acronym: -, Sponsor: State Key Laboratory of Agrobiotechnology, China Agricultural University;Number: -, Acronym: -, Sponsor: Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences;Number: -, Acronym: -, Sponsor: Department of Science and Technology, Ministry of Science and Technology;Number: renkailihappy@126.com, Acronym: -, Sponsor: Xia？？an Jiaotong University;Number: 710049, Acronym: -, Sponsor: Xia？？an Jiaotong University;Number: -, Acronym: -, Sponsor: Department of Electronics and Information Technology, Ministry of Communications and Information Technology;Number: 710119, Acronym: -, Sponsor: Chinese Academy of Sciences;Number: 61535015, Acronym: -, Sponsor: National Natural Science Foundation of China;Number: 61505246, Acronym: -, Sponsor: National Natural Science Foundation of China;Number: 61275149, Acronym: -, Sponsor: National Natural Science Foundation of China;
Funding text:Manuscript received February 25, 2017; revised May 4, 2017; accepted May 31, 2017. Date of publication June 2, 2017; date of current version June 20, 2017. This work was supported by the National Natural Science Foundation of China under Grant 61275149, Grant 61535015, and Grant 61505246. (Corresponding author: Liyong Ren.) K. Ren is with the State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, and also with the Department of Electronics Science and Technology, School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China (e-mail: renkailihappy@126.com).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<490>
Accession number:20180304654860
Title:Optical system design of lunar rover navigation camera
Authors:Wang, Hu (1); Liu, Jie (1); Liu, Meiying (1, 2); Xue, Yaoke (1); Liu, Yang (1); Lin, Shangmin (1); Zhang, Xibin (1); Wang, Feng (1); Pang, Shuxia (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanism, Chinese Academy of Sciences, Xi'an, Shaanxi; 710019, China; (2) University of Chinese, Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10463
Part number:1 of 1
Issue title:AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Issue date:2017
Publication year:2017
Article number:104631C
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614079
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133232
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:The optical system of lunar rover navigation camera has a direct influence on imaging quality, and an indirect influence on the programming of march forward of lunar rover. One type of lunar rover navigation camera optical system with the symmetrical structure was introduced. It also set up the suitable position of stop to achieve the relative distortion lower than 0.053 percent under the 60 degrees wide field-of-view. It applied the hyperfocal distance principle to achieve the clear imaging from 0.5 meter to infinity. The modulation transfer function is close to diffraction limit at the Nyquist frequency (at standard object distance). Considering the complicate environment of lunar surface and the demand of exploration, it selected the appropriate work spectral coverage and was cooperated by the irradiation reinforce. As a result, it can bear 1×104Rad (Si) space irradiation and is capable of keeping working normally in the severe environment with its temperature varying from-60°C to + 90°C. 2017 SPIE.
Number of references:7
Main heading:Lunar missions
Controlled terms:Cameras - Diffraction - Distortion (waves) - Earth (planet) - Irradiation - Navigation - Optical design - Optical systems
Uncontrolled terms:Diffraction limits - hyperfocal distance - Lunar rovers - Navigation cameras - Relative distortion - Spectral coverage - Symmetrical structure - Wide field of view
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment
Numerical data indexing:Percentage 5.30e-02%, Temperature 3.63e+02K
DOI:10.1117/12.2285166
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<491>
Accession number:20174504368399
Title:Pressurization Actuation Based Variable Curvature Mirror Having Variable Thickness
Authors:Zhao, Hui (1); Xie, Xiao-Peng (1, 2); Xu, Liang (1); Ding, Jiao-Teng (1); Liu, Mei-Ying (1); Fan, Xue-Wu (1); Wang, Ya-Jun (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Space Optics Lab, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100039, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:10
Issue date:October 1, 2017
Publication year:2017
Article number:1011002
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:The Finite Element Analysis(FEA)based optimization procedure aiming to obtain the optimum mirror parameters was first improved, it was found that the degradation of surface figure accuracy was mainly caused by spherical aberrations through Zernike polynomial surface fitting using 21 terms. After that, another duralumin prototype VCM (aperture 135 mm, central thickness 8mm and initial curvature radius 2 807 mm) was fabricated and tested. Because of the improvement of the fabrication process, the initial surface figure accuracy of the second mirror is superior to λ/80 (632.8 nm). When a pressure of about 0.07 MPa is imposed, the saggigus variation reaches nearly 37 μm and the corresponding surface figure accuracy is still superior to λ/40 (632.8 nm) with spherical aberrations removed. Compared with the first prototype VCM, the performance of the second one has been improved prominently. 2017, Science Press. All right reserved.
Number of references:18
Main heading:Aberrations
Controlled terms:Aspherics - Finite element method - Mirrors - Pressurization
Uncontrolled terms:Mirror thickness - Optical zooming - Optimization procedures - Spherical aberrations - Surface figure accuracies - Thin plate - Variable curvature mirror - Zernike polynomials
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 921.6 Numerical Methods
Numerical data indexing:Pressure 7.00e+04Pa, Size 1.35e-01m, Size 2.81e+00m, Size 3.70e-05m, Size 6.33e-07m, Size 8.00e-03m
DOI:10.3788/gzxb20174610.1011002
Funding details: Number: XAB2015A09, Acronym: CAS, Sponsor: Chinese Academy of Sciences;
Funding text:Young Scholars of Western Program of Chinese Academy of Sciences (No.XAB2015A09) and Shaanxi New Science and Technology Stars Program.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<492>
Accession number:20173404076940
Title:Dim targets detection and tracking by self-adaptive segmentation and particle filter in starry images
Authors:Deng, Wen-Kang (1, 2); Song, Zong-Xi (1); Gao, Wei (1); Li, Fei-Peng (1, 2); Qi, Yin-Long (1, 2); Wang, Chen-Chen (1, 2)
Author affiliation:(1) Space Optics Laboratory, Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Deng, Wen-Kang(dengwenkang@opt.cn)
Source title:Journal of Applied Science and Engineering
Abbreviated source title:J. Appl. Sci. Eng.
Volume:20
Issue:2
Issue date:2017
Publication year:2017
Pages:183-192
Language:English
ISSN:15606686
Document type:Journal article (JA)
Publisher:Journal of Applied Science and Engineering
Abstract:An effective method for dim and small multi-targets detection and tracking through successive CCD images in complex starry background is put forward in this paper. Optical starry background images contain a lot of interference noise besides the moving targets. Firstly, self-adaptive threshold segmentation can play an important role in eliminating noise and improving detection rate. Furthermore, back neighborhood frame correlation (BNFC) is proposed to detect and locate the target, which is sheltered by bigger interfered stars. After detection framework acquiring the location of moving targets, particle filter which has nonlinear filtering feature is applied to track the trajectories for multi-targets in real-time. Experimental results show that by using the adaptive target detection and improved particle filter, the trajectories could be achieved at a relative low signal to noise ratio (SNR ≥ 3.5) in the case of multi-targets detection and tracking in real time. The method has good prospect for engineering application.
Number of references:14
Main heading:Target tracking
Controlled terms:Adaptive filtering - Adaptive optics - Bandpass filters - Image segmentation - Monte Carlo methods - Signal to noise ratio
Uncontrolled terms:Complex Starry Background - Engineering applications - Improved particle filter - Low signal-to-noise ratio - Particle filter - Self adaptive threshold segmentation - Self-Adaptive - Small targets
Classification code:703.2 Electric Filters - 716.1 Information Theory and Signal Processing - 741.1 Light/Optics - 922.2 Mathematical Statistics
DOI:10.6180/jase.2017.20.2.06
Funding details: Number: -, Acronym: -, Sponsor: Youth Innovation Promotion Association of the Chinese Academy of Sciences;Number: -, Acronym: -, Sponsor: Chinese Academy of Sciences;
Funding text:This work is supported by the Foundation for Youth Innovation Promotion Association, Chinese Academy of Sciences, China.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<493>
Accession number:20171703607648
Title:Study of fuzzy PID controller for velocity circuit of optical-electronic theodolite
Authors:Li, Gengxin (1, 2); Yang, Xiaojun (1); He, Saixian (3)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Science, GaoXin qu, XinXi road 17, Xi'An; 710119, China; (2) University of Chinese, Academy of Sciences, China; (3) School of Electronic Information, Wuhan University, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102561Y
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:Two-axis stabilized turntable is an important part of optical-electronic theodolite, it carries various of measuring instruments. In order to improve the response speed of the optical-electronic theodolite when tracking high speed target. In the same time, improve the stability and precision when tracking low speed target. The traditional servo controller is double close-loop structure. On the basis of traditional structure, we use the fuzzy control theory to design the servo control speed loop adjuster as a fuzzy PID controller, and the position loop is designed as a traditional first order adjuster. We introduce the theory and characteristics of PID control and fuzzy control, and discussed the structure of the speed loop fussy controller and the tuning method of the PID parameters. The fuzzy PID controller was studied with simulation on the MATLAB/Simulink platform, the performance indexes and the anti-jamming abilities of the fussy PID controller and the traditional PID controller were compared. The experiment results show that the fussy PID controller has the ability of parameter self-tuning, and its tacking ability is much better than the traditional PID controller. 2017 SPIE.
Number of references:13
Main heading:Controllers
Controlled terms:Electric control equipment - Fuzzy control - MATLAB - Photonics - Pneumatic control equipment - Proportional control systems - Speed - Target tracking - Three term control systems - Timing circuits - Tuning
Uncontrolled terms:Fuzzy PID controller - Fuzzy-PID - MATLAB /simulink - Measuring instruments - Optical electronics - Parameter self-tuning - Servo control - Traditional structures
Classification code:713.4 Pulse Circuits - 731 Automatic Control Principles and Applications - 731.1 Control Systems - 732.1 Control Equipment - 741.1 Light/Optics - 921 Mathematics
DOI:10.1117/12.2257303
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<494>
Accession number:20174504368412
Title:Space X-ray Communication Link Modeling and Power Analysis
Authors:Su, Tong (1, 2); Li, Yao (1, 2); Sheng, Li-Zhi (1); Qiang, Peng-Fei (1, 2); Chen, Chen (1, 2); Xu, Neng (1, 2, 3); Zhao, Bao-Sheng (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
Corresponding author:Sheng, Li-Zhi(lizhi_sheng@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:10
Issue date:October 1, 2017
Publication year:2017
Article number:1035001
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:X-ray communication(Xcom) is a method which applying X-ray as carriers to transmit information in space. After the concept of Xcom was produced by Dr Keith, many institutions and scientists have conducted researches on Xcom and achieved fruitful results. However, most researches are focused on the key devices of Xcom, such as the X-ray emit source, the antenna and the detector, there is nearly no theoretical model for space X-ray communication. In this article, we focused on the power transmission process of space Xcom. To begin with, we analysised the signal channel and transmission model based on the additional gussian white noise(AWGN) model and free space attenuation, established the power transmission equation and link model. Then we analysised the error source of Xcom, established the noise model based on single photon detectors and also given the main noise sources. In other words, we can built mathematical relationship between the power of X-ray source, transmitting distance&speed and bit-error-ration (BER). Finally, we testified the signal photons of Micochannel Plate(MCP) detector output against various anode voltage and modulations. The results accord well with the theoretical analysis, and the power transmission equation and BER model can explain the Xcom process well too. Based on this transmission theory, we can calculate the emit X-ray power against various transmission distance and BER level respectively. As a result, three key parameters which judging a wireless optical communication system have been given as well as the theoretical model. Simulation results showed that with a constant photons flow, Pulse Position Modulation(PPM) has a better BER level than On-Off Keying(OOK) modulation. When the transmission distance is about 10 km, in order to achieve BER less than 10-6level, the power consumption of X-ray is less than 1mW. According to the power transmission model, in order to improve the BER level of Xcom system, we need a lower dark current detector, an advanced modulation and more transmitting power. These theoretical and experiment results could provide foundations for optimizing the core parameters of XCOM system in our future works. 2017, Science Press. All right reserved.
Number of references:26
Main heading:X ray detectors
Controlled terms:Antennas - Bit error rate - Errors - Image storage tubes - Modulation - Optical communication - Particle beams - Photodetectors - Photons - Power transmission - White noise - X rays
Uncontrolled terms:Link model - Mathematical relationship - On-off keying modulations - Power equations - Power transmission equations - Single photon detection - Single-photon detectors - Wireless optical communication systems
Classification code:602.2 Mechanical Transmissions - 714.1 Electron Tubes - 717.1 Optical Communication Systems - 723.1 Computer Programming - 931.3 Atomic and Molecular Physics - 932.1 High Energy Physics
Numerical data indexing:Power 1.00e-03W, Size 1.00e+04m
DOI:10.3788/gzxb20174610.1035001
Funding details: Number: 61471357, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The National Natural Science Foundation of China (No.61471357).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<495>
Accession number:20171903641246
Title:Transverse spinning of particles in highly focused vector vortex beams
Authors:Li, Manman (1, 2); Yan, Shaohui (1); Liang, Yansheng (1, 2); Zhang, Peng (1); Yao, Baoli (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Physical Review A
Abbreviated source title:Phys. Rev. A
Volume:95
Issue:5
Issue date:May 1, 2017
Publication year:2017
Article number:053802
Language:English
ISSN:24699926
E-ISSN:24699934
Document type:Journal article (JA)
Publisher:American Physical Society
Abstract:Transverse spin angular momentum, which appears locally in the structured optical fields, has attracted much attention, owing to its extraordinary properties and potential applications. We show theoretically that, by highly focusing a vector vortex beam with azimuthally varied polarization, it is possible to trap multiple particles simultaneously and manipulate the particles' spin along the azimuthal direction. Both the direction and the magnitude of the spin angular momentum, so the spin torque on the particle, can be varied by changing the state of the input beams. Moreover, the magnitude of the spin torque can be manipulated further by changing the characteristics of the particles. Such results may be exploited in practical optical manipulation, especially for optically induced rotations. 2017 American Physical Society.
Number of references:35
Main heading:Vortex flow
Controlled terms:Angular momentum
Uncontrolled terms:Azimuthal direction - Multiple particles - Optical field - Optical manipulation - Optically induced - Spin angular momentum - Spin torque - Vector-vortex beams
Classification code:631.1 Fluid Flow, General
DOI:10.1103/PhysRevA.95.053802
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<496>
Accession number:20171403515182
Title:Multi-parameter calibration of streak/framing camera based on integrated optical system with delay and attenuation modules
Authors:Wu, Bingjing (1); He, Junhua (1); Qi, Wenbo (1); Yuan, Zheng (2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang; 621900, China
Corresponding author:Wu, Bingjing(wubingjing@opt.ac.cn)
Source title:Optik
Abbreviated source title:Optik
Volume:138
Issue date:June 1, 2017
Publication year:2017
Pages:390-397
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Elsevier GmbH
Abstract:We demonstrate a multi-parameter calibration method of the streak camera and the framing camera with the help of beam division delay and attenuation devices in an integrated optical system based on sub-picosecond short-pulse UV laser. In the designed optical scheme, the four operating modes employed the optical delay, beam division delay and attenuation, and etalon modules can be switched to synchronize the UV laser pulse with the trigger signal of diagnosis instruments, calibrate the temporal resolution and dynamic range of framing cameras, and correct the sweep speed of streak cameras, respectively. The results show that the delay time error of ±0.1 ns in the optical delay module, the uniform distribution of sub-beams with the delay time precision of ±0.03 ps and isocon descending energy in the beam division delay and attenuation modules, and pulse broadening of ～22% in the whole system are achieved. In the meantime, the experiment results display the sweep speed of 1.2 ps/pixel in a streak camera and the dynamic range of 131 in a framing camera. The proposed folding optical system with high-precision, low-loss and multi-function can be extensively applied in the temporal calibration of diagnosis instruments such as streak cameras and framing cameras. 2017 Elsevier GmbH
Number of references:14
Main heading:Optical systems
Controlled terms:Calibration - Cameras - Optical design - Streak cameras - Ultraviolet lasers
Uncontrolled terms:Dynamic range - Integrated optical systems - Multi-functions - Pulse broadening - Sweep speed - Temporal calibration - Temporal resolution - Uniform distribution
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 744.1 Lasers, General
DOI:10.1016/j.ijleo.2017.03.049
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<497>
Accession number:20171103436785
Title:Application of phase diversity wave-front sensing technique to large space-borne camera
Authors:Zhao, Hui (1); Yi, Hong-Wei (1); Fan, Xue-Wu (1); Li, Chuang (1); Zou, Gang-Yi (1); Pang, Zhi-Hai (1); Ren, Guo-Rui (1); Zhao, Yan (1); Li, Ai-Ling (1); Wei, Jing-Xuan (2); Xie, Xiao-Peng (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an; 710119, China; (2) School of Computer Science and Technology, Xidian University, Xi'an; 710071, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:1
Issue date:January 1, 2017
Publication year:2017
Article number:0111001
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Based on the fundamental principle of phase diversity technique, a prototype space-borne camera was used to experimentally demonstrate the effects of wavefront reversal of phase diversity technique through laboratory and outfield push-broom imaging experiments. Experimental results demonstrate that, the accuracy of wavefront reversal based on phase diversity technique is near 1/40λ(λ=632.8 nm)by using the root-mean-squares of residual wave-front errors between the really obtained wave-front through Zygo and the calculated wave-front through phase diversity as a criterion. At the same time, by carrying out deconvolution to the degraded push-broom images using the estimated wave-front, the image quality could be prominently improved. The signal-to-noise ratio could be improved at least 40% and the modulation transfer function at Nyquist frequency could be improved 80% above, which indirectly proves the effectiveness of phase diversity technique as well. The work reported in this manuscript will pave the way for in-orbit application of phase diversity based wave-front sensing technique in future. 2017, Science Press. All right reserved.
Number of references:26
Page count:12
Main heading:Wavefronts
Controlled terms:Cameras - Image enhancement - Image reconstruction - Signal to noise ratio
Uncontrolled terms:Fundamental principles - Imaging experiments - Nyquist frequency - Phase diversity - Root Mean Square - Space-borne - Wave-front sensing - Wavefront errors
Classification code:716.1 Information Theory and Signal Processing - 742.2 Photographic Equipment
Numerical data indexing:Percentage 4.00e+01%, Percentage 8.00e+01%
DOI:10.3788/gzxb20174601.0111001
Funding details: Number: 61203372, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61107008, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61105017, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The National Natural Science Foundation of China (Nos.61107008, 61203372, 61105017).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<498>
Accession number:20181304941974
Title:Small period long period grating with enhanced sensitivity in low refractive index region
Authors:Shen, Fangcheng (1); Zhou, Kaiming (2, 3); Zhang, Lin (2); Shu, Xuewen (1)
Author affiliation:(1) Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan; 430074, China; (2) Aston Institute of Photonic Technologies, Aston University, Birmingham; B4 7ET, United Kingdom; (3) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Corresponding author:Shu, Xuewen(xshu@hust.edu.cn)
Source title:2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
Abbreviated source title:Conf. Lasers Electro-Opt. Pac. Rim, CLEO-PR
Volume:2017-January
Part number:1 of 1
Issue title:2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
Issue date:November 22, 2017
Publication year:2017
Pages:1-2
Language:English
ISBN-13:9781509062904
Document type:Conference article (CA)
Conference name:2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
Conference date:July 31, 2017 - August 4, 2017
Conference location:Singapore, Singapore
Conference code:132664
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Long period grating with a grating period of 15 μm is fabricated with a femtosecond laser. Such a small period grating enables coupling of fundamental core mode with high order cladding modes that have effective refractive index close to water, and exhibits an enhanced sensitivity in low refractive index region. 2017 Institute of Electrical and Electronics Engineers Inc. All Rights Reserved.
Number of references:6
Main heading:Refractive index
Controlled terms:Femtosecond lasers - Fiber optic sensors - Optical fiber fabrication - Optical fibers - Refractometers
Uncontrolled terms:Cladding modes - Effective refractive index - Enhanced sensitivity - Fundamental core mode - Grating periods - Long Period Gratings - Low refractive index - Refractive index sensor
Classification code:741.1 Light/Optics - 741.1.2 Fiber Optics - 941.3 Optical Instruments
Numerical data indexing:Size 1.50e-05m
DOI:10.1109/CLEOPR.2017.8118766
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<499>
Accession number:20173604133286
Title:Multiple Auxiliaries Assisted Airborne Power Line Detection
Authors:Shan, Haotian (1); Zhang, Jun (1); Cao, Xianbin (1); Li, Xuelong (2); Wu, Dapeng (1, 3)
Author affiliation:(1) School of Electronics and Information Engineering, Beihang University, National Key Laboratory of CNS/ATM, Beijing; 100191, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) University of Florida, Gainesville; FL; 32611, United States
Source title:IEEE Transactions on Industrial Electronics
Abbreviated source title:IEEE Trans Ind Electron
Volume:64
Issue:6
Issue date:June 2017
Publication year:2017
Pages:4810-4819
Article number:7855717
Language:English
ISSN:02780046
CODEN:ITIED6
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Airborne power line detection is a key technique to ensure low altitude flight safety. Yet, it is a challenging problem due to the extremely small size of power line targets. Recently, auxiliary assisted detection has shown great potential in improving the power line detection performance. However, in existing methods, the auxiliaries and the contexts between the power lines and the auxiliaries are both manually assigned, thus limits its applicability. In this paper, a novel multiple auxiliaries assisted power line detection method is proposed. With an optimization based auxiliaries selection and contexts acquisition scheme, the proposed method cannot only decide which auxiliaries should be selected to assist the detection, but also acquire the context information of each kind of auxiliaries, all in an automatic way. Experimental results show that the proposed method surpasses the state-of-the-art power line detection methods, both in terms of detection accuracy and false alarm probability. 2017 IEEE.
Number of references:36
Main heading:Bayesian networks
Controlled terms:Electronics engineering - Industrial electronics
Uncontrolled terms:Automatic auxiliaries selection - context - Context information - Detection accuracy - False alarm probability - Low-altitude flight - Power lines - State of the art
Classification code:921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
DOI:10.1109/TIE.2017.2668994
Funding details: Number: 61521091, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61425014, Acronym: -, Sponsor: China National Funds for Distinguished Young Scientists;Number: 91538204, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Manuscript received June 24, 2016; revised September 6, 2016; accepted November 12, 2016. Date of publication February 14, 2017; date of current version May 10, 2017. This work was supported in part by the National Natural Science Foundation of China under Grant 91538204, in part by the National Science Fund for Distinguished Young Scholars under Grant 61425014, and in part by the Foundation for Innovative Research Groups of the National Natural Science Foundation of China under Grant 61521091.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<500>
Accession number:20172503793395
Title:Pulsed quantum frequency combs from an actively mode-locked intra-cavity generation scheme
Authors:Roztocki, Piotr (1); Kues, Michael (1, 2); Reimer, Christian (1); Wetzel, Benjamin (1, 3); Little, Brent E. (4); Chu, Sai T. (5); Moss, David J. (1, 6); Morandotti, Roberto (1, 7, 8)
Author affiliation:(1) INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes; QC; J3X 1S2, Canada; (2) School of Engineering, University of Glasgow, Rankine Building, Oakfield Avenue, Glasgow; G12 8LT, United Kingdom; (3) School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh; EH14 4AS, United Kingdom; (4) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, China; (5) Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong; (6) Center for Microphotonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia; (7) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (8) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China
Corresponding author:Kues, Michael(michael.kues@emt.inrs.ca)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F42-CLEO_QELS 2017
Part number:1 of 1
Issue title:CLEO: QELS_Fundamental Science, CLEO_QELS 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:CLEO: QELS_Fundamental Science, CLEO_QELS 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:135898
Publisher:OSA - The Optical Society
Abstract:We introduce an intra-cavity actively mode-locked excitation scheme for nonlinear microring resonators that removes the need for external laser excitation in the generation of pulsed two-photon frequency combs. We found a heralded anti-bunching dip of 0.245 and maximum coincidence-to-accidental ratio of 110 for the generated photon pairs. OSA 2017.
Number of references:6
Page count:2
Main heading:Locks (fasteners)
Controlled terms:Laser excitation - Photons
Uncontrolled terms:Anti-bunching - Excitation schemes - Frequency combs - Intracavities - Microring resonator - Mode-locked - Photon pairs - Two photon
Classification code:744.9 Laser Applications - 931.3 Atomic and Molecular Physics
DOI:10.1364/CLEO_QELS.2017.FW4E.4
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<501>
Accession number:20171703601966
Title:Polarization-based enhancement of ocean color signal for estimating suspended particulate matter: Radiative transfer simulations and laboratory measurements
Authors:Liu, Jia (1, 2); He, Xianqiang (2, 3); Liu, Jiahang (1); Bai, Yan (2); Wang, Difeng (2); Chen, Tieqiao (1); Wang, Yihao (1); Zhu, Feng (1)
Author affiliation:(1) Laboratory of Remote-Sensing and Intelligent Information System, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China; (2) State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China; (3) Ocean College, Zhejiang University, Hangzhou, China
Corresponding author:He, Xianqiang(hexianqiang@sio.org.cn)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:8
Issue date:April 17, 2017
Publication year:2017
Pages:A323-A337
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:Absorption and scattering by molecules, aerosols and hydrosols, and the reflection and transmission over the sea surface can modify the original polarization state of sunlight. However, water-leaving radiance polarization, containing embedded water constituent information, has largely been neglected. Here, the efficiency of the parallel polarization radiance (PPR) for enhancing ocean color signal of suspended particulate matter is examined via vector radiative transfer simulations and laboratory experiments. The simulation results demonstrate that the PPR has a slightly higher ocean color signal at the top-of-atmosphere as compared with that of the total radiance. Moreover, both the simulations and laboratory measurements reveal that, compared with total radiance, PPR can effectively enhance the normalized ocean color signal for a large range of observation geometries, wavelengths, and suspended particle concentrations. Thus, PPR has great potential for improving the ocean color signal detection from satellite. 2017 Optical Society of America.
Number of references:49
Main heading:Color
Controlled terms:Oceanography - Polarization - Radiative transfer - Research laboratories - Surface waters
Uncontrolled terms:Absorption and scatterings - Laboratory experiments - Laboratory measurements - Radiative transfer simulations - Reflection and transmission - Suspended particulate matters - Vector radiative transfer - Water-leaving radiances
Classification code:444.1 Surface Water - 471.1 Oceanography, General - 701 Electricity and Magnetism - 741.1 Light/Optics - 901.3 Engineering Research
DOI:10.1364/OE.25.00A323
Funding details: Number: SOED1602, Acronym: SOA, Sponsor: State Oceanic Administration;Number: 2014AA123301, Acronym: -, Sponsor: -;Number: 41676170, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 41621064, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 41676172, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 41476155, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: XAB2015A07, Acronym: CSA, Sponsor: Canadian Space Agency;Number: 2015CB954002, Acronym: -, Sponsor: -;Number: GASI-03-03-01-01, Acronym: -, Sponsor: -;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Basic Research Programme ("973" Programme) of China (grant #2015CB954002); National High Technology and Development Program of China (grant 2014AA123301); National Natural Science Foundation of China (NSFC) (grants #41676170, #41676172, #41476155 and #41621064); "Global Change and Air-Sea Interaction" project of China (grant # GASI-03-03-01-01); "Light of West China" Program of CSA (grant# XAB2015A07); public fund by State Key Laboratory of Satellite Ocean Environment Dynamics (Second Institute of Oceanography, State Oceanic Administration) (grant # SOED1602). We thank the two anonymous reviewers for providing constructive comments which strengthen the manuscript largely.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<502>
Accession number:20173404055414
Title:High Temporal and Spatial Resolution Distributed Fiber Bragg Grating Sensors Using Time-Stretch Frequency-Domain Reflectometry
Authors:Ahmad, Eamonn J. (1); Wang, Chao (1); Feng, Dejun (1, 2); Yan, Zhijun (3, 4); Zhang, Lin (3)
Author affiliation:(1) School of Engineering and Digital Arts, University of Kent, Canterbury; CT2 7NT, United Kingdom; (2) School of Information Science and Engineering, Shandong University, Jinan; 250100, China; (3) Aston Institute of Photonic Technologies, Aston University, Birmingham; B4 7PG, United Kingdom; (4) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Journal of Lightwave Technology
Abbreviated source title:J Lightwave Technol
Volume:35
Issue:16
Issue date:August 15, 2017
Publication year:2017
Pages:3289-3295
Language:English
ISSN:07338724
CODEN:JLTEDG
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:A novel interrogation technique for fully distributed linearly chirped fiber Bragg grating (LCFBG) strain sensors with simultaneous high temporal and spatial resolution based on optical time-stretch frequency-domain reflectometry (OTS-FDR) is proposed and experimentally demonstrated. LCFBGs is a promising candidate for fully distributed sensors thanks to its longer grating length and broader reflection bandwidth compared to normal uniform FBGs. In the proposed system, two identical LCFBGs are employed in a Michelson interferometer setup with one grating serving as the reference grating whereas the other serving as the sensing element. Broadband spectral interferogram is formed and the strain information is encoded into the wavelength-dependent free spectral range (FSR). Ultrafast interrogation is achieved based on dispersion-induced time stretch such that the target spectral interferogram is mapped to a temporal interference waveform that can be captured in real-time using a single-pixel photodetector. The distributed strain along the sensing grating can be reconstructed from the instantaneous RF frequency of the captured waveform. High-spatial resolution is also obtained due to high-speed data acquisition. In a proof-of-concept experiment, ultrafast real-time interrogation of fully distributed grating sensors with various strain distributions is experimentally demonstrated. An ultrarapid measurement speed of 50 MHz with a high spatial resolution of 31.5 μm over a gauge length of 25 mm and a strain resolution of 9.1 μ？ have been achieved. 2016 IEEE.
Number of references:30
Main heading:Frequency domain analysis
Controlled terms:Chromatic dispersion - Data acquisition - Fiber Bragg gratings - Fiber optic sensors - Fourier transforms - Image resolution - Interferometry - Michelson interferometers - Reflection - Reflectometers - Strain
Uncontrolled terms:Fiber Bragg Grating Sensors - Frequency domain reflectometry - High spatial resolution - High speed data acquisition - Interrogation techniques - Linearly chirped fiber Bragg gratings - Optical interferometry - Time stretch
Classification code:711.1 Electromagnetic Waves in Different Media - 723.2 Data Processing and Image Processing - 741.1.2 Fiber Optics - 921.3 Mathematical Transformations - 941.3 Optical Instruments - 941.4 Optical Variables Measurements - 951 Materials Science
Numerical data indexing:Frequency 5.00e+07Hz, Size 2.50e-02m, Size 3.15e-05m
DOI:10.1109/JLT.2016.2605401
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<503>
Accession number:20172003680384
Title:The test and analysis on pulse signal detection abilities of the X-ray detector MCP for pulsar navigation
Authors:Zhou, Qingyong (1, 2, 3); Sheng, Lizhi (4); Wei, Ziqing (2, 3); Liu, Siwei (2, 3); Jiang, Kun (5); Chen, Chun (4); Ji, Jianfeng (2, 3); Ren, Hongfei (2, 3); Ma, Gaofeng (1)
Author affiliation:(1) Geographic Spatial Information Institute, Information Engineering University, Zhengzhou; 450052, China; (2) Xi’an Research Institute of Surveying and Mapping, Xi’an; 710054, China; (3) State Key Laboratory of Geo-information Engineering, Xi’an; 710054, China; (4) Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China; (5) Beijing Tracking and Communication Technology Research Institute, Beijing; 100094, China
Corresponding author:Zhou, Qingyong(zjlzqy1986@163.com)
Source title:Lecture Notes in Electrical Engineering
Abbreviated source title:Lect. Notes Electr. Eng.
Volume:438
Part number:2 of 3
Issue title:China Satellite Navigation Conference, CSNC 2017 Proceedings
Issue date:2017
Publication year:2017
Pages:637-647
Language:English
ISSN:18761100
E-ISSN:18761119
ISBN-13:9789811045905
Document type:Conference article (CA)
Conference name:8th China Satellite Navigation Conference, CSNC 2017
Conference date:May 23, 2017 - May 25, 2017
Conference location:Shanghai, China
Conference code:191589
Publisher:Springer Verlag
Abstract:The Micro-Channel Plate detector (MCP) is an X-ray detecting system with a mature technology, which is suitable for space observation and navigation application of X-ray pulsar. For analyzing the X-ray pulse signal observation capability of MCP detector, a long-time experiment of MCP detector with different radiation flux and different background noise were carried out by the ground testing system. Meanwhile, a set of evaluation methods of the pulse observation capability of X-ray detector was established, those expressions of the signal-to-noise ratio (SNR), the correlation of pulse profile (R), the accuracy of pulse time of arrival (σ
Number of references:16
Main heading:X ray detectors
Controlled terms:Correlation detectors - Electromagnetic wave emission - Image storage tubes - Navigation - Photons - Pulsars - Satellite navigation aids - Signal detection - Signal to noise ratio - Statistical tests - X ray apparatus - X rays
Uncontrolled terms:Detecting systems - Detection ability - Evaluation methods - Ground testing - Micro channel plate - Pulsar navigations - Space observations - X-ray pulsars
Classification code:655.2 Satellites - 657.2 Extraterrestrial Physics and Stellar Phenomena - 711 Electromagnetic Waves - 714.1 Electron Tubes - 716.1 Information Theory and Signal Processing - 922.2 Mathematical Statistics - 931.3 Atomic and Molecular Physics - 932.1 High Energy Physics
Numerical data indexing:Area 2.00e-03m2, Percentage 8.84e+01%
DOI:10.1007/978-981-10-4591-2_51
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<504>
Accession number:20173504094985
Title:Wavelength conversion of QAM signals in a low loss CMOS compatible spiral waveguide (Open Access)
Authors:Da Ros, Francesco (1); Porto Da Silva, Edson (1); Zibar, Darko (1); Chu, Sai T. (2); Little, Brent E. (3); Morandotti, Roberto (4, 5, 6); Galili, Michael (1); Moss, David J. (7); Oxenl？we, Leif K. (1)
Author affiliation:(1) DTU Fotonik, Technical University of Denmark, DTU, Kongens Lyngby; 2800, Denmark; (2) Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, Hong Kong; (3) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, China; (4) INSR - énergie, Matériaux et Télécommunications, 1650 Blvd. Lionel Boulet, Varennes; QC; J3X1S2, Canada; (5) Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu; 610054, China; (6) National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia; (7) Centre for Microphotonics, Swinburne University of Technology, Hawthorn; VIC; 3122, Australia
Source title:APL Photonics
Abbreviated source title:APL Photonics
Volume:2
Issue:4
Issue date:April 1, 2017
Publication year:2017
Article number:4978945
Language:English
E-ISSN:23780967
Document type:Journal article (JA)
Publisher:AIP Publishing
Abstract:We demonstrate wavelength conversion of quadrature amplitude modulation (QAM) signals, including 32-GBd quadrature phase-shift keying and 10-GBd 16-QAM, in a 50-cm long high index doped glass spiral waveguide. The quality of the generated idlers for up to 20 nm of wavelength shift is sufficient to achieve a BER performance below the hard decision forward error correction threshold BER performance (<3.8 × 103), with an optical signal-to-noise ratio penalty of less than 0.3 dB compared to the original signal. Our results confirm that this is a promising platform for nonlinear optical signal processing, as a result of both very low linear propagation loss (<0.07 dB/cm) and a large material bandgap, which in turn ensures negligible nonlinear loss at telecom wavelengths. 2017 Author(s).
Number of references:23
Main heading:Quadrature amplitude modulation
Controlled terms:CMOS integrated circuits - Error correction - Nonlinear optics - Optical communication - Signal to noise ratio - Waveguides
Uncontrolled terms:Linear propagation - Nonlinear optical signal processing - Optical signal to noise ratio - Original signal - Quadrature amplitude modulation signals - Spiral waveguides - Telecom wavelengths - Wavelength shift
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 714.3 Waveguides - 716.1 Information Theory and Signal Processing - 717.1 Optical Communication Systems - 741.1.1 Nonlinear Optics
Numerical data indexing:Decibel 3.00e-01dB, Size 2.00e-08m, Size 5.00e-01m
DOI:10.1063/1.4978945
Funding details: Number: -, Acronym: ARC, Sponsor: Australian Research Council;Number: XDB24030300, Acronym: CAS, Sponsor: Chinese Academy of Sciences;
Funding text:This work was supported by the Center of Excellence Silicon Photonics for Optical Communications (SPOC) funded by the Danish National Research Foundation (ref. DNRF123), by the National Science and Engineering Research Council in Canada, by the Australian Research Council (ARC) discovery projects program and by the Strategic Priority Research Program of the Chinese Academy of Sciences, Grant No. XDB24030300. We thank the reviewers for their constructive feedback on this work.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<505>
Accession number:20181605016138
Title:An Allotype Double H-V Depolarizer for Hyperfine Spectrometer
Authors:Tang, Qian (1); Guo, Li-Xin (1); Zhao, Bao-Chang (2)
Author affiliation:(1) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710071, China; (2) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Guo, Li-Xin(lxguo@xidian.edu.cn)
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:37
Issue:12
Issue date:December 1, 2017
Publication year:2017
Pages:3913-3919
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press
Abstract:High precision atmospheric detection spectrometers are widely used, because the sunlight would be polarized while passing the atmosphere and that could reduce detecting precision of the devices. There are many efforts on removing this influence. An allotype double H-V(Horizontal-Vertical) depolarizer is proposed, and it is equipped on hyperfine spectrometer used for atmosphere detecting in UV. Because the birefringence structure of crystals could eliminate the polarization, they are always chosen for depolarizers. Essentially, the birefringence of depolarizer can induce depolarization and double-imaging at the same time. The difference between traditional structure and the allotype is the inequality of the wedge angles of two sub H-Vs. There are different double-imaging distances in the spectrum dimension and the spatial dimension. So the contradiction between high-depolarization and high-imaging quality could be resolved. This paper will describe the design and analyzed the result. Depolarization is better than 98.8% and distance of the double-imaging is just 8.7% in the spatial dimension. 2017, Peking University Press. All right reserved.
Number of references:19
Main heading:Depolarization
Controlled terms:Birefringence - Crystal structure - Polarization - Spectrometers
Uncontrolled terms:H-V depolarizer - High-precision - Imaging distances - Imaging quality - Polarization sensitivity - Spatial dimension - Traditional structures - Wedge angle
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 933.1.1 Crystal Lattice
Numerical data indexing:Percentage 8.70e+00%, Percentage 9.88e+01%
DOI:10.3964/j.issn.1000-0593(2017)12-3913-07
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<506>
Accession number:20171703607526
Title:Movement decoupling control for two-axis fast steering mirror
Authors:Rui, Wang (1, 2); Qiao, Yongming (2); Tao, Lv (2)
Author affiliation:(1) University of Chinese, Academy of Sciences, Beijing; 100049, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:1025625
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:Based on flexure hinge and piezoelectric actuator of two-axis fast steering mirror is a complex system with time varying, uncertain and strong coupling. It is extremely difficult to achieve high precision decoupling control with the traditional PID control method. The feedback error learning method was established an inverse hysteresis model which was based inner product dynamic neural network nonlinear and no-smooth for piezo-ceramic. In order to improve the actuator high precision, a method was proposed, which was based piezo-ceramic inverse model of two dynamic neural network adaptive control. The experiment result indicated that, compared with two neural network adaptive movement decoupling control algorithm, static relative error is reduced from 4.44% to 0.30% and coupling degree is reduced from 12.71% to 0.60%, while dynamic relative error is reduced from 13.92% to 2.85% and coupling degree is reduced from 2.63% to 1.17%. 2017 SPIE.
Number of references:8
Main heading:Adaptive control systems
Controlled terms:Adaptive optics - Ceramic materials - Errors - Feedback - Hinges - Hysteresis - Inverse problems - Mirrors - Neural networks - Photonics - Piezoelectric actuators - Three term control systems
Uncontrolled terms:Coupling degree - Dynamic neural networks - Fast steering mirror - Feedback error learning - Inner product
Classification code:731.1 Control Systems - 732 Control Devices - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 812.1 Ceramics - 961 Systems Science
Numerical data indexing:Percentage 1.27e+01% to 6.00e-01%, Percentage 1.39e+01% to 2.85e+00%, Percentage 2.63e+00% to 1.17e+00%, Percentage 4.44e+00% to 3.00e-01%
DOI:10.1117/12.2257346
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<507>
Accession number:20160801977730
Title:Learning Instance Correlation Functions for Multilabel Classification
Authors:Liu, Huawen (1); Li, Xuelong (2); Zhang, Shichao (3)
Author affiliation:(1) Department of Computer Science, Zhejiang Normal University, Jinhua; 321004, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Xi'an, Shaanxi; 710119, China; (3) Department of Computer Science, Zhejiang Gongshang University, Hangzhou; 310018, China
Corresponding author:Zhang, Shichao(zhangsc@mail.gxnu.edu.cn)
Source title:IEEE Transactions on Cybernetics
Abbreviated source title:IEEE Trans. Cybern.
Volume:47
Issue:2
Issue date:February 2017
Publication year:2017
Pages:499-510
Article number:7401007
Language:English
ISSN:21682267
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Multilabel learning has a wide range of potential applications in reality. It attracts a great deal of attention during the past years and has been extensively studied in many fields including image annotation and text categorization. Although many efforts have been made for multilabel learning, there are two challenging issues remaining, i.e., how to exploit the correlations and how to tackle the high-dimensional problems of multilabel data. In this paper, an effective algorithm is developed for multilabel classification with utilizing those data that are relevant to the targets. The key is the construction of a coefficient-based mapping between training and test instances, where the mapping relationship exploits the correlations among the instances, rather than the explicit relationship between the variables and the class labels of data. Further, a constraint, ℓ1-norm penalty, is performed on the mapping relationship to make the model sparse, weakening the impacts of noisy data. Our empirical study on eight public datasets shows that the proposed method is more effective in comparing with the state-of-the-art multilabel classifiers. 2013 IEEE.
Number of references:52
Main heading:Classification (of information)
Controlled terms:Mapping - Membership functions - Nearest neighbor search - Text processing
Uncontrolled terms:Correlation function - High-dimensional problems - Instance based learning - K-nearest neighbors - Mapping relationships - Multi-label classifications - Multi-label learning - Partial least-square regression
Classification code:405.3 Surveying - 716.1 Information Theory and Signal Processing - 903.1 Information Sources and Analysis - 921 Mathematics - 921.5 Optimization Techniques
DOI:10.1109/TCYB.2016.2519683
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<508>
Accession number:20173604108945
Title:On Combining Social Media and Spatial Technology for POI Cognition and Image Localization
Authors:Qian, Xueming (1); Lu, Xiaoqiang (2); Han, Junwei (3); Du, Bo (4); Li, Xuelong (2)
Author affiliation:(1) Ministry of Education Key Laboratory for Intelligent Networks and Network Security and SMILES LAB, Xi'an Jiaotong University, Xi'an; 710049, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (3) School of Automation and Information Engineering, Northwestern Polytechnical University, Xi'an; 710049, China; (4) School of Computer Science, Wuhan University, Wuhan; 430072, China
Corresponding author:Lu, Xiaoqiang(luxiaoqiang@opt.ac.cn)
Source title:Proceedings of the IEEE
Abbreviated source title:Proc. IEEE
Volume:105
Issue:10
Issue date:October 2017
Publication year:2017
Pages:1937-1952
Article number:8014427
Language:English
ISSN:00189219
CODEN:IEEPAD
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:With fast development of information engineering and social network, people's locations can be conveniently sensed by spatial technology, such as global positioning systems (GPS), base stations, Wi-Fi access points and even from the appearances of the photos they have taken. The social networks and the online shopping platforms have been gathering billions of users, who share a large amount of images taken in places they live in and visit. We can leverage the social networks to express our opinions about the services and places of interest (POIs). The interactions among users, and user and POIs or services generate big social media data, which have rich information for user, location, and service cognition. Many real-time network applications rely heavily on the accurate social users' locations. How to sense the locations from multisource social media data is very important and challenging. Thus, in this paper, we give a systematic review of the works that combine social media and spatial technology for POI cognition and image localization. 1963-2012 IEEE.
Number of references:172
Main heading:Search engines
Controlled terms:Global positioning system - Image retrieval - Location - Recommender systems - Social networking (online) - Social sciences computing - Wi-Fi
Uncontrolled terms:Geolocalization - multimedia - place of interests (POI) - Social media - Spatial technologies
Classification code:723 Computer Software, Data Handling and Applications
DOI:10.1109/JPROC.2017.2731600
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<509>
Accession number:20180204633870
Title:Design of CMOS imaging system based on FPGA
Authors:Hu, Bo (1, 2); Chen, Xiaolai (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10459
Part number:1 of 1
Issue title:AOPC 2017: Optical Storage and Display Technology
Issue date:2017
Publication year:2017
Article number:104590V
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510613997
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Storage and Display Technology, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:132930
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:In order to meet the needs of engineering applications for high dynamic range CMOS camera under the rolling shutter mode, a complete imaging system is designed based on the CMOS imaging sensor NSC1105. The paper decides CMOS+ADC+FPGA+Camera Link as processing architecture and introduces the design and implementation of the hardware system. As for camera software system, which consists of CMOS timing drive module, image acquisition module and transmission control module, the paper designs in Verilog language and drives it to work properly based on Xilinx FPGA. The ISE 14.6 emulator ISim is used in the simulation of signals. The imaging experimental results show that the system exhibits a 1280？1024 pixel resolution, has a frame frequency of 25 fps and a dynamic range more than 120dB. The imaging quality of the system satisfies the requirement of the index. 2017 COPYRIGHT SPIE.
Number of references:4
Main heading:Integrated circuit design
Controlled terms:Cameras - CMOS integrated circuits - Computer architecture - Computer hardware description languages - Display devices - Field programmable gate arrays (FPGA) - Imaging systems
Uncontrolled terms:Acquisition modules - CMOS imaging sensor - Cmos imaging systems - Design and implementations - Engineering applications - High dynamic range cmos cameras - Processing architectures - Transmission control
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 721.2 Logic Elements - 722.2 Computer Peripheral Equipment - 723.1.1 Computer Programming Languages - 742.2 Photographic Equipment - 746 Imaging Techniques
Numerical data indexing:Decibel 1.20e+02dB
DOI:10.1117/12.2285248
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<5010>
Accession number:20161102082260
Title:Robust Joint Graph Sparse Coding for Unsupervised Spectral Feature Selection
Authors:Zhu, Xiaofeng (1); Li, Xuelong (2); Zhang, Shichao (3); Ju, Chunhua (3); Wu, Xindong (4)
Author affiliation:(1) Guangxi Key Laboratory of Multi-Source Information Mining and Security, Guangxi Normal University, Guilin; 541004, China; (2) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (3) School of Computer Science and Information Technology, Zhejiang Gongshang University, Hangzhou; 310018, China; (4) Department of Computer Science, University of Vermont, Burlington; VT; 05405, United States
Corresponding author:Zhang, Shichao(zhangsc_gxnu@163.com)
Source title:IEEE Transactions on Neural Networks and Learning Systems
Abbreviated source title:IEEE Trans. Neural Networks Learn. Sys.
Volume:28
Issue:6
Issue date:June 2017
Publication year:2017
Pages:1263-1275
Article number:7422138
Language:English
ISSN:2162237X
E-ISSN:21622388
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:In this paper, we propose a new unsupervised spectral feature selection model by embedding a graph regularizer into the framework of joint sparse regression for preserving the local structures of data. To do this, we first extract the bases of training data by previous dictionary learning methods and, then, map original data into the basis space to generate their new representations, by proposing a novel joint graph sparse coding (JGSC) model. In JGSC, we first formulate its objective function by simultaneously taking subspace learning and joint sparse regression into account, then, design a new optimization solution to solve the resulting objective function, and further prove the convergence of the proposed solution. Furthermore, we extend JGSC to a robust JGSC (RJGSC) via replacing the least square loss function with a robust loss function, for achieving the same goals and also avoiding the impact of outliers. Finally, experimental results on real data sets showed that both JGSC and RJGSC outperformed the state-of-the-art algorithms in terms of κ-nearest neighbor classification performance. 2016 IEEE.
Number of references:62
Main heading:Graph theory
Controlled terms:Classification (of information) - Codes (symbols) - Data mining - Feature extraction - Regression analysis
Uncontrolled terms:Dictionary learning - Dimensionality reduction - Manifold learning - Nearest neighbor classification - Optimization solution - regression - Sparse coding - State-of-the-art algorithms
Classification code:716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 922.2 Mathematical Statistics
DOI:10.1109/TNNLS.2016.2521602
Funding details: Number: 2012GXNSFGA060004, Acronym: -, Sponsor: Natural Science Foundation of Guangxi Province;Number: 2015GXNSFCB139011, Acronym: -, Sponsor: Natural Science Foundation of Guangxi Province;Number: 61573270, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61263035, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61450001, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 2013CB329404, Acronym: -, Sponsor: -;
Funding text:The work of X. Zhu and S. Zhang was supported in part by the China 973 Program under Grant 2013CB329404, in part by the National Natural Science Foundation of China under Grant 61450001, Grant 61263035, and Grant 61573270, in part by the Guangxi Natural Science Foundation under Grant 2012GXNSFGA060004 and Grant 2015GXNSFCB139011, in part by the Guangxi 100 Plan, in part by the Guangxi Collaborative Innovation Center of Multi-Source Information Integration and Intelligent Processing, and in part by the Guangxi Bagui Scholar Teams for Innovation and Research Project. (Corresponding authors: Shichao Zhang and Xindong Wu.)
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<511>
Accession number:20173003968825
Title:Repetition Rate Multiplication Pulsed Laser Source Based on a Microring Resonator
Authors:Wang, Weiqiang (1, 2); Zhang, Wenfu (1, 2); Chu, Sai T. (3); Little, Brent E. (1, 2); Yang, Qinghua (4); Wang, Leiran (1, 2); Hu, Xiaohong (1); Wang, Lei (1); Wang, Guoxi (1, 2); Wang, Yishan (1); Zhao, Wei (1, 2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, Hong Kong; (4) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710071, China
Corresponding author:Zhang, Wenfu(wfuzhang@opt.ac.cn)
Source title:ACS Photonics
Abbreviated source title:ACS Photonics
Volume:4
Issue:7
Issue date:July 19, 2017
Publication year:2017
Pages:1677-1683
Language:English
E-ISSN:23304022
Document type:Journal article (JA)
Publisher:American Chemical Society
Abstract:We demonstrate a stable high-Q microring resonator (MRR)-based pulsed laser source with adjustable repetition rate from 49 to 735 GHz, corresponds to repetition rate multiplication of up to 15× the free spectral range (FSR) of the MRR. The repetition rate multiplication is realized by temporal multiplexing multiple pulses in the MRR through simply tuning of the fiber cavity length. Thus, the repetition rate of the pulsed laser source breaks the frequency limitation of the previous dissipative four wave mixing based mode locked lasers whose repetition rate is equal to the FSR of the built in comb filter. This high quality chip-based repetition rate multiplicable pulsed laser source is an effective approach to on-chip ultrahigh speed optical clock frequency multiplication systems. 2017 American Chemical Society.
Number of references:37
Main heading:Pulsed lasers
Controlled terms:Four wave mixing - Integrated optics - Lasers - Locks (fasteners) - Microcavities - Mode-locked fiber lasers - Nanophotonics - Optical resonators - Pulse repetition rate - Q switched lasers - Ultrafast lasers
Uncontrolled terms:Effective approaches - Free spectral range - Frequency limitation - Microring Resonator (MRR) - Mode-locked laser - Pulsed laser sources - Repetition rate multiplication - Temporal multiplexing
Classification code:714 Electronic Components and Tubes - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 744.1 Lasers, General
Numerical data indexing:Frequency 4.90e+10Hz to 7.35e+11Hz
DOI:10.1021/acsphotonics.7b00129
Funding details: Number: DPO75902SX, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: XDB24030600, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61675231, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61635013, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61475188, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was partly supported by National Natural Science Foundation of China (Grant No. 61475188, 61675231, 61635013), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB24030600). We gratefully acknowledge Prof. Yuanshan Liu and Prof. Xiaoping Xie for discussions about the experiments. We also thank Tektronix for providing the ultrahigh bandwidth oscilloscope (DPO75902SX) and test introduction.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<512>
Accession number:20183005592134
Title:Feature extraction based on tensor modelling for classification methods
Authors:Yan, Ronghua (1, 3); Peng, Jinye (1, 2); Ma, Dongmei (4); Wen, Desheng (3); Dong, Yingdi (5)
Author affiliation:(1) School of Electronics and Information, Northwestern Polytechnical University, Xi'an, China; (2) School of Information and Technology, Northwest University, Xi'an, China; (3) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an, China; (4) Xi'an-Janssen Pharmaceutical Ltd., Xi'an, China; (5) School of Information and Control Engineering, Xi'an University of Architecture and Technology, Xi'an, China
Corresponding author:Yan, Ronghua(yanronghua@opt.ac.cn)
Source title:Conference Proceedings - 2017 International Conference on the Frontiers and Advances in Data Science, FADS 2017
Abbreviated source title:Conf. Proc. - Int. Conf. Front. Adv. Data Sci., FADS
Volume:2018-January
Part number:1 of 1
Issue title:Conference Proceedings - 2017 International Conference on the Frontiers and Advances in Data Science, FADS 2017
Issue date:July 1, 2017
Publication year:2017
Pages:102-107
Language:English
ISBN-13:9781538631485
Document type:Conference article (CA)
Conference name:2017 International Conference on the Frontiers and Advances in Data Science, FADS 2017
Conference date:October 23, 2017 - October 25, 2017
Conference location:Xian, China
Conference code:134214
Sponsor:IEEE UK and RI Computer Chapter; IEEE Xi'an Section; Northwest University; SAGE Publishing; University of Essex
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Both spatial and spectral information is used when a hyperspectral image is modeled as a tensor. However, this model does not consider both the class and within-class information about the spectral features of ground objects. This means that further improving classification is very difficult. The authors propose that class information, within-class information, and pixels are selected to model a third-order tensor. The most important advantage of the proposed method is that all the pixels of one class are mapped to the same coefficient vector. Therefore, the within-class scatter is minimized, and the classification is improved when compared to the previous methods. 2017 IEEE.
Number of references:21
Main heading:Classification (of information)
Controlled terms:Extraction - Feature extraction - Pixels - Remote sensing - Spectroscopy - Tensors
Uncontrolled terms:Class information - Classification methods - Coefficient vector - Spectral feature - Spectral information - Third-order tensors - Within class - Within class scatter
Classification code:716.1 Information Theory and Signal Processing - 802.3 Chemical Operations - 921.1 Algebra
DOI:10.1109/FADS.2017.8253205
Funding details: Number: 61272285, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: IRT13090, Acronym: -, Sponsor: Guangdong Innovative Research Team Program;
Funding text:This work is supported by the National Natural Science Foundation (Grant No. 61272285) and Program for Changjiang Scholars and Innovative Research Team in University (IRT13090).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<513>
Accession number:20182205249404
Title:PMSM servo control system design based on fuzzy PID
Authors:Qiang, Guo (1); Junfeng, Han (2); Wei, Peng (2)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Xi'an, China; (2) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
Corresponding author:Qiang, Guo(cyxshrenli@163.com)
Source title:Proceedings - 2017 2nd International Conference on Cybernetics, Robotics and Control, CRC 2017
Abbreviated source title:Proc. - Int. Conf. Cybern., Robot. Control, CRC
Volume:2018-January
Part number:1 of 1
Issue title:Proceedings - 2017 2nd International Conference on Cybernetics, Robotics and Control, CRC 2017
Issue date:July 2, 2017
Publication year:2017
Pages:85-88
Language:English
ISBN-13:9781538606773
Document type:Conference article (CA)
Conference name:2nd International Conference on Cybernetics, Robotics and Control, CRC 2017
Conference date:July 21, 2017 - July 23, 2017
Conference location:Chengdu, Sichuan, China
Conference code:135561
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:This paper firstly introduces the cascaded controller structure of PMSM (permanent magnet synchronous motor) servo system, and then designs a fuzzy adaptive PID position controller. Then builds the simulation model of PMSM cascaded controller in MATLAB /Simulink environment, which position loop adopts fuzzy PID control. Finally, the comparison between the fuzzy PID and the traditional PID simulation results shows that the fuzzy PID is more superior than the traditional PID. 2017 IEEE.
Number of references:7
Main heading:Adaptive control systems
Controlled terms:Controllers - MATLAB - Permanent magnets - Robotics - Servomechanisms - Synchronous motors - Three term control systems
Uncontrolled terms:Cascaded controls - Controller structures - Fuzzy - pid controls - MATLAB/Simulink environment - Permanent Magnet Synchronous Motor - PMSM - Servo control systems - simulation
Classification code:704.1 Electric Components - 705.3.1 AC Motors - 731.1 Control Systems - 731.5 Robotics - 732.1 Control Equipment - 921 Mathematics
DOI:10.1109/CRC.2017.28
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<514>
Accession number:20182605362750
Title:Bird species recognition based on SVM classifier and decision tree
Authors:Qiao, Baowen (1, 2); Zhou, Zuofeng (2); Yang, Hongtao (2); Cao, Jianzhong (2)
Author affiliation:(1) Shaanxi Normal University, School of Physics and Information Technology, Xi'an, China; (2) Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an, China
Source title:1st International Conference on Electronics Instrumentation and Information Systems, EIIS 2017
Abbreviated source title:Int. Conf. Electron. Instrum. Inf. Syst., EIIS
Volume:2018-January
Part number:1 of 1
Issue title:1st International Conference on Electronics Instrumentation and Information Systems, EIIS 2017
Issue date:July 2, 2017
Publication year:2017
Pages:1-4
Language:English
ISBN-13:9781538608432
Document type:Conference article (CA)
Conference name:1st International Conference on Electronics Instrumentation and Information Systems, EIIS 2017
Conference date:June 3, 2017 - June 5, 2017
Conference location:Harbin, China
Conference code:134751
Sponsor:Conference Publishing Services (CPS)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Bird species recognition is a challenging problem due to the variant illumination and different view point of camera. In this paper, a new feature which is the ratio between the distance of the eye to the root of beak and the distance of the width of the beak is used to distinguish the different bird species. Integrated the new feature into the multi-scale decision tree and the SVM framework, a new bird species recognition algorithm is proposed to get the final recognition result. The Experiment results show that the proposed new feature can improve the correct classification rate about nine percent. 2017 IEEE.
Number of references:10
Main heading:Birds
Controlled terms:Data mining - Decision trees - Information systems - Information use - Pattern recognition - Trees (mathematics)
Uncontrolled terms:Bird species - Classification rates - component - Multi-scale - SVM classifiers
Classification code:723.2 Data Processing and Image Processing - 903.3 Information Retrieval and Use - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
DOI:10.1109/EIIS.2017.8298548
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<515>
Accession number:20175004531166
Title:Design and Calibration of Weak-Light Single Star Simulator
Authors:Liu, Shangkuo (1, 2); Xue, Xun (1); Li, Kun (1); Cao, Kun (1); Zhao, Jianke (1); Zhou, Yan (1); Yao, Baoli (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:37
Issue:10
Issue date:October 10, 2017
Publication year:2017
Article number:1012001
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Aiming at the problem of high magnitude target simulation in the lab, a weak-light single star simulator (WLSSS) consisting of light source, adjustable diaphragm, integrating sphere, photoelectric detector and collimator is developed to measure the magnitude detecting ability of detecting cameras and star sensors. The relationship between the readings of photoelectric detector, the spectral radiance in the outlet of integrating sphere and tunable obscuration ratio is deduced. Combining the magnitude definition formula and the image illuminance equation formula, the operation principle of weak-light single star simulator is introduced, and the calibration challenge of high magnitude target is solved. The magnitude simulation range and precision of WLSSS are theoretically analyzed, and results show that the highest simulating magnitude is 19.5 Mv, and the precision is 11.6%. When the simulation magnitude is lower than 15 Mv, its precision is better than 8%. Experiment results show that in the lab, the maximum relative error between simulated magnitudes and KLL-04 wide-range illuminator tested magnitudes is 7.09%. The relative error of measured magnitude detecting ability between laboratory and astro-observation detecting cameras is 1.9% in 6.5 Mv, and 2.6% in 15.2 Mv. The designed WLSSS can effectively simulate high magnitude targets. 2017, Chinese Lasers Press. All right reserved.
Number of references:11
Main heading:Stars
Controlled terms:Calibration - Cameras - Light sources - Measurement - Photoelectricity - Photonic devices - Simulators
Uncontrolled terms:Definition formula - High magnitude - Integrating spheres - Magnitude simulation - Maximum relative errors - Photoelectric detectors - Star simulator - Target simulation
Classification code:657.2 Extraterrestrial Physics and Stellar Phenomena - 701.1 Electricity: Basic Concepts and Phenomena - 741.1 Light/Optics - 742.2 Photographic Equipment
Numerical data indexing:Percentage 1.16e+01%, Percentage 1.90e+00%, Percentage 2.60e+00%, Percentage 7.09e+00%, Percentage 8.00e+00%
DOI:10.3788/AOS201737.1012001
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<516>
Accession number:20174304308495
Title:MAM-RNN: Multi-level attention model based RNN for video captioning
Authors:Li, Xuelong (1); Zhao, Bin (2); Lu, Xiaoqiang (1)
Author affiliation:(1) Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian; 710119, China; (2) School of Computer Science, Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xian; 710072, China
Source title:IJCAI International Joint Conference on Artificial Intelligence
Abbreviated source title:IJCAI Int. Joint Conf. Artif. Intell.
Volume:0
Part number:1 of 1
Issue title:26th International Joint Conference on Artificial Intelligence, IJCAI 2017
Issue date:2017
Publication year:2017
Pages:2208-2214
Language:English
ISSN:10450823
ISBN-13:9780999241103
Document type:Conference article (CA)
Conference name:26th International Joint Conference on Artificial Intelligence, IJCAI 2017
Conference date:August 19, 2017 - August 25, 2017
Conference location:Melbourne, VIC, Australia
Conference code:130864
Sponsor:Alibaba Group; Artificial Intelligence Journal; et al.; Melbourne Convention Bureau; Victoria Government; Xiaoi
Publisher:International Joint Conferences on Artificial Intelligence
Abstract:Visual information is quite important for the task of video captioning. However, in the video, there are a lot of uncorrelated content, which may cause interference to generate a correct caption. Based on this point, we attempt to exploit the visual features which are most correlated to the caption. In this paper, a Multi-level Attention Model based Recurrent Neural Network (MAM-RNN) is proposed, where MAM is utilized to encode the visual feature and RNN works as the decoder to generate the video caption. During generation, the proposed approach is able to adaptively attend to the salient regions in the frame and the frames correlated to the caption. Practically, the experimental results on two benchmark datasets, i.e., MSVD and Charades, have shown the excellent performance of the proposed approach.
Number of references:22
Main heading:Benchmarking
Controlled terms:Recurrent neural networks
Uncontrolled terms:Attention model - Benchmark datasets - Multilevels - Salient regions - Video captions - Visual feature - Visual information
Classification code:723.4 Artificial Intelligence
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<517>
Accession number:20174404342933
Title:Status of the 20 inch MCP-PMT prototype development for JUNO experiment (Open Access)
Authors:Gao, Feng (1, 2, 3); Huang, Guorui (4); Heng, Yuekun (1, 2); Li, Dong (4); Liu, Hulin (5); Liu, Shulin (1, 2); Li, Weihua (5); Ning, Zhe (1, 2); Qi, Ming (6); Qian, Sen (1, 2); Ren, Ling (4); Sun, Jianning (4); Si, Shuguang (4); Tian, Jinshou (5); Wang, Yifang (1, 2); Wei, Yonglin (5); Xin, Liwei (5); Zhao, Tianchi (1)
Author affiliation:(1) Institute of High Energy Physics, Chinese Academy of Sciences, Beijing; 100049, China; (2) State Key Laboratory of Particle Detection and Electronics, Beijing; 100049, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China; (4) Nanjing, North Night Vision Tech. Ltd., Nanjing; 211106, China; (5) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710068, China; (6) Department of Physics, Nanjing Unversity, Nanjing; 210093, China
Corresponding author:Qian, Sen(qians@ihep.ac.cn)
Source title:Journal of Physics: Conference Series
Abbreviated source title:J. Phys. Conf. Ser.
Volume:888
Part number:1 of 1
Issue:1
Issue title:XXVII International Conference on Neutrino Physics and Astrophysics, Neutrino 2016
Issue date:September 20, 2017
Publication year:2017
Article number:012050
Language:English
ISSN:17426588
E-ISSN:17426596
Document type:Conference article (CA)
Conference name:27th International Conference on Neutrino Physics and Astrophysics, Neutrino 2016
Conference date:July 4, 2016 - July 9, 2016
Conference location:South Kensington, United kingdom
Conference code:131176
Publisher:Institute of Physics Publishing
Abstract:A new concept of large area photomultiplier based on MCPs was conceived for JUNO by the scientists in IHEP, Beijing. In the past 5 years by collaborative work of the MCP-PMT collaboration in China, 8 inch and 20 inch prototypes were produced. Test results show that this type of MCP-PMT can have similar photon counting performance as the traditional dynode type PMTs. With the better collection efficiency, low after pulse rate, low Low-Potassium Glass, the JUNO ordered 75% about 15,000 20 inch MCP-PMT from NNVT at the end of 2015. This manuscript just give the overview this type of MCP-PMT, the R&D process and the main characteristics. Published under licence by IOP Publishing Ltd.
Number of references:4
Main heading:Astrophysics
Controlled terms:Atomic physics - Neutrons
Uncontrolled terms:Collaborative Work - Collection efficiency - MCP-PMT - Photon counting - Prototype development - Pulse rate
Classification code:657.2 Extraterrestrial Physics and Stellar Phenomena - 931.3 Atomic and Molecular Physics
Numerical data indexing:Age 5.00e+00yr, Percentage 7.50e+01%, Size 2.03e-01m, Size 5.08e-01m
DOI:10.1088/1742-6596/888/1/012050
Funding details: Number: XDA10010200, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: XDA10010400, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 11475209, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11675205, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11175198, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The MCP-PMT development project has been partially supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA10010200 and No. XDA10010400) and the National Natural Science Foundation of China (Grant No.11175198 and No.11475209 and No.11675205).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<518>
Accession number:20175104565896
Title:Retrieval of total suspended particulate matter in highly turbid Hangzhou Bay waters based on geostationary ocean color imager
Authors:Liu, Jia (1); Liu, Jiahang (1); He, Xianqiang (2); Chen, Tieqiao (1); Zhu, Feng (1); Wang, Yihao (1); Hao, Zengzhou (2); Chen, Peng (2)
Author affiliation:(1) Laboratory of Remote Sensing, Intelligent Information System, Xi'An Institute of Optics, Precision Mechanics of Chinese Academy of Sciences, Xi'an; 710119, China; (2) State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou; 310012, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10422
Part number:1 of 1
Issue title:Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2017
Issue date:2017
Publication year:2017
Article number:1042217
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510613089
Document type:Conference article (CA)
Conference name:Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2017
Conference date:September 11, 2017 - September 12, 2017
Conference location:Warsaw, Poland
Conference code:132632
Sponsor:The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Hangzhou Bay waters are often characterized by extremely high total suspended particulate matter (TSM) concentration due to terrestrial inputs, bottom sediment resuspension and human activities. The spatial-temporal variability of TSM directly contributes to the transport of carbon, nutrients, pollutants, and other materials. Therefore, it is essential to maintain and monitor sedimentary environment in coastal waters. Traditional field sampling methods limit observation capability for insufficient spatial-temporal resolution. Thus, it is difficult to synoptically monitor high diurnal dynamics of TSM. However, the in-orbit operation of the world's first geostationary satellite ocean color sensor, GOCI, thoroughly changes this situation with hourly observations of covered area. Taking advantage of GOCI high spatial-temporal resolution, we generated TSM maps from GOCI Level-1B data after atmospheric correction based on six TSM empirical algorithms. Validation of GOCI-retrieved normalized water-leaving radiances and TSM concentration was presented in comparison with matched-up in-situ measurements. The mean absolute percentage differences of those six TSM regional algorithms were 24.52%, 163.93%, 195.50%, 70.50%, 121.02%, 82.72%, respectively. In addition, the discrepancy reasons were presented, taking more factors such as diversified satellite data, various study area, and different research season into consideration. It is effective and indispensable to monitor and catch the diurnal dynamics of TSM in Hangzhou Bay coastal waters, with hourly GOCI observations data and appropriate inversion algorithm. 2017 SPIE.
Number of references:12
Main heading:Remote sensing
Controlled terms:Geostationary satellites - Hydrophilicity - Oceanography - Orbits - Sea ice - Suspended sediments
Uncontrolled terms:Atmospheric corrections - Empirical algorithms - GOCI - Hangzhou Bay - Spatial and temporal variability - Total suspended particulate matters - validation
Classification code:471.1 Oceanography, General - 483 Soil Mechanics and Foundations - 655.2 Satellites
Numerical data indexing:Percentage 1.21e+02%, Percentage 1.64e+02%, Percentage 1.96e+02%, Percentage 2.45e+01%, Percentage 7.05e+01%, Percentage 8.27e+01%
DOI:10.1117/12.2278047
Funding details: Number: -, Acronym: SOA, Sponsor: State Oceanic Administration;Number: 2015A07, Acronym: -, Sponsor: -;Number: 2014AA123301, Acronym: -, Sponsor: -;Number: 2016YFF0103604, Acronym: -, Sponsor: -;Number: #SOED1602, Acronym: -, Sponsor: -;Number: 2015CB954002, Acronym: -, Sponsor: -;Number: #GASI-03-03-01-01, Acronym: -, Sponsor: -;Number: 41706207, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 41676170, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 41621064, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 41676172, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 41476155, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:We thank KORDI/KOSC for providing us with the GOCI Level-1B data and distributing the GDPS software for community use. We also thank the State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, for providing the in-situ datasets, and all of the crews for their field sampling. This study was supported by the public fund by State Key Laboratory of Satellite Ocean Environment Dynamics (Second Institute of Oceanography, State Oceanic Administration) (grant #SOED1602), the Western Young Scientist Program of CSA (grant #XAB2015A07), the National Key Research and Development of China (grant #2016YFF0103604), the National Basic Research Program ("973" Program) of China (grant #2015CB954002), the National High Technology and Development Program of China (grant #2014AA123301), the National Natural Science Foundation of China (grants #41706207, #41676170, #41676172, #41476155 and #41621064), and the "Global Change and Air-Sea Interaction" project of China (grant #GASI-03-03-01-01).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<519>
Accession number:20171703607643
Title:Numerical analysis of thermally tunable liquid-crystal-filled terahertz fiber
Authors:Wang, Doudou (1, 2); Ma, Hongwei (2); Wang, Lili (3); Li, Baihong (1); Yang, Jing (1)
Author affiliation:(1) College of Sciences, Xi'an University of Science and Technology, Xi'an; 710054, China; (2) College of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an; 710054, China; (3) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102561S
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:A liquid-crystal-filled polymer photonic crystal fiber is designed and numerically analysised for terahertz wave guiding. Bandgap-guiding terahertz fiber is obtained by infiltrating the cladding air holes of index guiding Topas photonic crystal fiber with liquid crystal 5CB. Structural parameter dependence and thermal tunability of the photonic bandgaps, mode properties and confinement losses of the designed fiber are investigated by using the finite element method. The bandgaps are formed based on antiresonances of the individual liquid crystal inclusions, so the positions of bandgaps depend strongly on the cladding hole diameter and weakly on the lattice constant. Bandgaps and the positions of the confinement loss minimum or peaks of the transmission spectra shift toward lower frequency as temperature increased from 25 °C to 34 °C due to the positive dn
Number of references:20
Main heading:Holey fibers
Controlled terms:Crystal whiskers - Energy gap - Fibers - Filled polymers - Finite element method - Liquid crystals - Optical waveguides - Photonic band gap - Photonic bandgap fibers - Photonic crystals - Photonics - Spontaneous emission - Terahertz waves
Uncontrolled terms:Fiber-optic devices - High power transmission - Polymer fiber - Polymer photonic crystals - Structural parameter - Tera Hertz - Terahertz frequencies - Transmission spectrums
Classification code:711 Electromagnetic Waves - 714.3 Waveguides - 741.1 Light/Optics - 921.6 Numerical Methods - 933.1.1 Crystal Lattice - 951 Materials Science
Numerical data indexing:Temperature 2.98e+02K to 3.07e+02K
DOI:10.1117/12.2257112
Funding details: Number: 2015M582766XB, Acronym: -, Sponsor: China Postdoctoral Science Foundation;Number: 2014JQ8335, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 11604260, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11504292, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 16JK1516, Acronym: -, Sponsor: Education Department of Shaanxi Province;
Funding text:This research was supported by the National Natural Science Foundation of China (Grant Nos. 11604260, 11504292), the Natural Science Basic Research Plan in Shaanxi Province of China (Program No. 2014JQ8335), China Postdoctoral Science Foundation (No. 2015M582766XB) and the Scientific Research Program Funded by Shaanxi Provincial Education Department (Program No. 16JK1516).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<520>
Accession number:20171703605084
Title:Ultrafast all-optical solid-state framing camera with picosecond temporal resolution
Authors:Gao, Guilong (1, 2, 3); He, Kai (1); Tian, Jinshou (1, 4); Zhang, Chunmin (2); Zhang, Jun (5); Wang, Tao (1); Chen, Shaorong (5); Jia, Hui (5); Yuan, Fenfang (5); Liang, Lingliang (1, 2, 3); Yan, Xin (1); Li, Shaohui (1); Wang, Chao (1); Yin, Fei (1)
Author affiliation:(1) Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an; Shaanxi; 710119, China; (2) Institute of Space Optics, School of Science, Xi'an Jiaotong University, Xi'an; Shaanxi; 710049, China; (3) Graduate School of Chinese Academy of Sciences (CAS), Beijing; 100049, China; (4) Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; Shanxi; 030006, China; (5) College of Electronic Science and Engineering, National University of Defense Technology, Changsha; Hunan; 410073, China
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:25
Issue:8
Issue date:April 17, 2017
Publication year:2017
Pages:8721-8729
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:A new ultrafast all-optical solid-state framing camera (UASFC) capable of single-shot ultrafast imaging is proposed and experimentally demonstrated. It is composed of an ultrafast semiconductor chip (USC), an optical time-series system (TSS), and a spatial mapping device (SMD) with an USC to transform signal beam information to the probe beam, a TSS to convert the time axis to wavelength-polarization, and a SMD to map wavelength-polarization image to different spatial positions. In our recent proof-of-principle experiment, better performance than ever of this technique is confirmed by giving six frames with ～3 ps temporal resolution and ～30 lp/mm spatial resolution. 2017 Optical Society of America.
Number of references:29
Main heading:Cameras
Controlled terms:Polarization
Uncontrolled terms:Polarization images - Proof-of-principle experiments - Semiconductor chips - Spatial mapping - Spatial positions - Spatial resolution - Temporal resolution - Ultrafast imaging
Classification code:742.2 Photographic Equipment
DOI:10.1364/OE.25.008721
Funding details: Number: XAB2015B21, Acronym: -, Sponsor: -;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 11274377, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11675258, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 41530422, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Major Program of the National Natural Science Foundation of China (NSFC) (Grant No. 41530422); National Natural Science Foundation of China (NSFC) (Grant No. 11274377, 11675258); CAS "Light of West China" (Grant No. XAB2015B21).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<521>
Accession number:20172803903569
Title:Characteristics of External Optical Feedback in Distributed Feedback Fiber Lasers Array
Authors:Hao, Ge-Yang (1, 2); Wu, Guo-Jun (1); Lü, Pei (1); Wang, Hao (1); Liu, Bo (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Wu, Guo-Jun(wuguojun@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:4
Issue date:April 1, 2017
Publication year:2017
Article number:0414001
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:The simulation results between different facet reflectivity of external cavity and output power of distributed feedback fiber laser are presented, based on compound cavity laser model and facet reflectivity of external cavity measured by optical spectrum analyzers. And a two elements experiment system is constructed to prove this relationship. It is found that the output power of distributed feedback fiber laser will be increased and the flatness of distributed feedback fiber lasers array will be worsed due to the external optical feedback. And the larger facet reflectivity of external cavity is, the lower flatness of distributed feedback fiber lasers array will be. The influence of external optical feedback to the flatness of distributed feedback fiber lasers array should be considered, and distributed feedback fiber laser which have lower facet reflectivity should be used for constitutes the distributed feedback fiber lasers array. 2017, Science Press. All right reserved.
Number of references:15
Main heading:Distributed feedback lasers
Controlled terms:Fiber lasers - Fiber optics - Fibers - Optical feedback - Reflection - Spectrum analyzers
Uncontrolled terms:Compound cavity lasers - Distributed feedback fiber lasers - Experiment system - External cavity - External optical feedback - Facet reflectivity - Optical spectrum analyzer - Output power
Classification code:741.1.2 Fiber Optics - 744.1 Lasers, General - 744.4 Solid State Lasers
DOI:10.3788/gzxb20174604.0414001
Funding details: Number: No.SZHY2014-C02-01, Acronym: -, Sponsor: -;Number: 61405244, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:The National Natural Science Foundation of China(No. 61405244), the Marine Economy Innovation Development Area Demonstration Project of Guangzhou(No.SZHY2014-C02-01).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<522>
Accession number:20173003982025
Title:Highly strain and bending sensitive microtapered long-period fiber gratings
Authors:Ren, Kaili (1, 2); Ren, Liyong (1); Liang, Jian (1); Kong, Xudong (1); Ju, Haijuan (1); Wu, Zhaoxin (2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Department of Electronics Science and Technology, School of Electronic and Information Engineering, Xi'An Jiaotong University, Xi'an; 710049, China
Corresponding author:Ren, Kaili(renkaili@opt.cn)
Source title:IEEE Photonics Technology Letters
Abbreviated source title:IEEE Photonics Technol Lett
Volume:29
Issue:13
Issue date:July 2017
Publication year:2017
Pages:1085-1088
Article number:7922560
Language:English
ISSN:10411135
CODEN:IPTLEL
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:A microtapered long-period fiber grating (MTLPFG) is fabricated successfully by periodically tapering a standard single-mode fiber with CO2 laser heating source. This can be done by taking advantage of that the effective index difference between the core mode and the cladding modes is changed periodically during microtapering. High fabrication reproducibility and MTLPFGs quality can be achieved by this CO2 laser-heater-based fabrication scheme. In addition, the strain, bending, and liquid-level sensing characteristics of the MTLPFGs are investigated experimentally. Compared with the conventional long-period fiber gratings, it is found that the strain and bending sensitivities of fabricated MTLPFGs are improved by factors of about 10 and 5, respectively. Considering the simple and flexible fabrication process as well as the high quality and sensitivity of fabricated MTLPFGs, we believe that this may offer a simpler and alternative choice to current filters or sensing applications. 2017 IEEE.
Number of references:25
Main heading:Diffraction gratings
Controlled terms:Carbon dioxide - Carbon dioxide lasers - Fiber optic sensors - Laser heating - Optical fiber fabrication - Optical fibers - Single mode fibers
Uncontrolled terms:Cladding modes - Effective index - Fabrication process - Long period fiber grating - Optical fiber applications - Reproducibilities - Sensing applications - Standard single mode fibers
Classification code:741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 744.2 Gas Lasers - 744.9 Laser Applications - 804.2 Inorganic Compounds
DOI:10.1109/LPT.2017.2702573
Funding details: Number: 61535015, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61505246, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61275149, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China under Grant 61275149, Grant 61535015, and Grant 61505246.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<523>
Accession number:20172503791797
Title:Weakly Supervised Multimodal Kernel for Categorizing Aerial Photographs
Authors:Xia, Yingjie (1); Zhang, Luming (1); Liu, Zhenguang (2); Nie, Liqiang (3); Li, Xuelong (4)
Author affiliation:(1) College of Computer Sciences, Zhejiang University, Hangzhou; 310027, China; (2) School of Computing, National Universtiy of Singapore, Singapore; 119077, Singapore; (3) School of Computer Science and Technology, Shandong University, Jinan; 250100, China; (4) State Key Laboratory of Transient Optics and Photonics, Center for OPTical IMagery Analysis and Learning, Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Zhang, Luming(zglumg@gmail.com)
Source title:IEEE Transactions on Image Processing
Abbreviated source title:IEEE Trans Image Process
Volume:26
Issue:8
Issue date:August 2017
Publication year:2017
Pages:3748-3758
Article number:7782730
Language:English
ISSN:10577149
CODEN:IIPRE4
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Accurately distinguishing aerial photographs from different categories is a promising technique in computer vision. It can facilitate a series of applications, such as video surveillance and vehicle navigation. In this paper, a new image kernel is proposed for effectively recognizing aerial photographs. The key is to encode high-level semantic cues into local image patches in a weakly supervised way, and integrate multimodal visual features using a newly developed hashing algorithm. The flowchart can be elaborated as follows. Given an aerial photo, we first extract a number of graphlets to describe its topological structure. For each graphlet, we utilize color and texture to capture its appearance, and a weakly supervised algorithm to capture its semantics. Thereafter, aerial photo categorization can be naturally formulated as graphlet-to-graphlet matching. As the number of graphlets from each aerial photo is huge, to accelerate matching, we present a hashing algorithm to seamlessly fuze the multiple visual features into binary codes. Finally, an image kernel is calculated by fast matching the binary codes corresponding to each graphlet. And a multi-class SVM is learned for aerial photo categorization. We demonstrate the advantage of our proposed model by comparing it with state-of-the-art image descriptors. Moreover, an in-depth study of the descriptiveness of the hash-based graphlet is presented. 2017 IEEE.
Number of references:71
Main heading:Aerial photography
Controlled terms:Antennas - Binary codes - Image processing - Photographic equipment - Security systems - Semantics
Uncontrolled terms:Aerial Photographs - categorization - image kernel - Multi-modal - weakly-supervised
Classification code:723.1 Computer Programming - 742.1 Photography - 742.2 Photographic Equipment - 914.1 Accidents and Accident Prevention
DOI:10.1109/TIP.2016.2639438
Funding details: Number: LR14F020003, Acronym: -, Sponsor: Natural Science Foundation of Zhejiang Province;Number: 61472113, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61472266, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61572169, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundation of China under Grant 61572169, Grant 61472266, and Grant 61472113, in part by the National University of Singapore Suzhou Research Institute, and in part by the Zhejiang Provincial Natural Science Foundation of China under Grant LR14F020003.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<524>
Accession number:20171703612839
Title:Large sparse cone non-negative matrix factorization for image annotation
Authors:Tao, Dapeng (1); Tao, Dacheng (2); Li, Xuelong (3); Gao, Xinbo (4)
Author affiliation:(1) School of Information Science and Engineering, Yunnan University, Kumming; 650091, China; (2) School of Information Technologies and the Faculty of Engineering and Information Technologies, University of Sydney, J12/318 Cleveland St, Darlington; NSW; 2008, Australia; (3) Center for OPTical IMagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xian Institute of Optics and Precision Mechanics, Xian; 710119, China; (4) State Key Laboratory of Integrated Services Networks, School of Electronic Engineering, Xidian University, Xian; 710071, China
Source title:ACM Transactions on Intelligent Systems and Technology
Abbreviated source title:ACM Trans. Intell. Syst. Technolog.
Volume:8
Issue:3
Issue date:April 2017
Publication year:2017
Article number:37
Language:English
ISSN:21576904
E-ISSN:21576912
Document type:Journal article (JA)
Publisher:Association for Computing Machinery
Abstract:Image annotation assigns relevant tags to query images based on their semantic contents. Since Non-negative Matrix Factorization (NMF) has the strong ability to learn parts-based representations, recently, a number of algorithms based on NMF have been proposed for image annotation and have achieved good performance. However, most of the efforts have focused on the representations of images and annotations. The properties of the semantic parts have not been well studied. In this article, we revisit the sparseness-constrained NMF (sNMF) proposed by Hoyer [2004]. By endowing the sparseness constraint with a geometric interpretation and sNMF with theoretical analyses of the generalization ability, we show that NMF with such a sparseness constraint has three advantages for image annotation tasks: (i) The sparseness constraint is more ℓ0-norm oriented than the ℓ1-norm-based sparseness, which significantly enhances the ability of NMF to robustly learn semantic parts. (ii) The sparseness constraint has a large cone interpretation and thus allows the reconstruction error of NMF to be smaller, which means that the learned semantic parts are more powerful to represent images for tagging. (iii) The learned semantic parts are less correlated, which increases the discriminative ability for annotating images. Moreover, we present a new efficient large sparse cone NMF (LsCNMF) algorithm to optimize the sNMF problem by employing the Nesterov's optimal gradient method. We conducted experiments on the PASCAL VOC07 dataset and demonstrated the effectiveness of LsCNMF for image annotation. 2017 ACM.
Number of references:77
Main heading:Image annotation
Controlled terms:Factorization - Gradient methods - Image analysis - Image enhancement - Matrix algebra - Semantics
Uncontrolled terms:Discriminative ability - Generalization ability - Geometric interpretation - Nonnegative matrix factorization - Optimal gradient methods - Reconstruction error - Semantic content - Sparseness constraints
Classification code:921 Mathematics
DOI:10.1145/2987379
Funding details: Number: 61572486, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61432014, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China under Grant 61572486, Grant 61432014
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<525>
Accession number:20170603332788
Title:Observation of particle manipulation with axial plane optical microscopy
Authors:An, Sha (1, 2); Peng, Tong (1, 2); Zhou, Xing (1, 2); Han, Guo-Xia (1); Huang, Zhang-Xiang (1); Yu, Xiang-Hua (1); Cai, Ya-Nan (1, 2); Yao, Bao-Li (1); Zhang, Peng (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Zhang, Peng(pengzhang@opt.ac.cn)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:1
Issue date:January 5, 2017
Publication year:2017
Article number:010702
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:Optical micromanipulation of particles based on the optical trapping effect induced by the interaction between light and particles has been successfully applied to many interdisciplinary fields including biomedicine and material sciences. When particles are trapped in three dimensions, the conventional wide-field optical microscopy can only monitor the movement of the trapped particles in a certain transverse plane. The ability to observe the particle movement along light trajectories is limited. Recently, a novel method named axial plane optical microscopy (APOM) has been developed to directly image the axial plane that is parallel to the optical axis of an objective lens. The APOM observes the axial plane by converting the axial information of a sample into that of a transverse plane by using a 45°-tilted mirror. In this paper, we propose and demonstrate that the APOM serves as an effective tool for observing the axial movement of particles in optical tweezers. By combining with a conventional wide-field optical microscopy, we show that both transverse and axial information can be acquired simultaneously for the optical micromanipulation. As in our first experimental demonstration, we observe two particles which are trapped and aligned along the optical axis. From the transverse image, only one particle is observable, and it is difficult to obtain the information along the axial direction. However, in the axial plane imaging, the longitudinal dipolar structure formed by the two particles is clearly visible. This clearly demonstrates the APOM imaging capability along the axial axis. The numerically simulations on the trapping focal spot against the position of a collimating lens agree well with our experimental APOM results. Furthermore, we directly observe the dynamic capture process of a single trapped particle in transverse plane by conventional wide-field optical microscopy as well in axial plane by the APOM, and can obtain the 3D information rapidly and simultaneously. We point out that the observable axial dynamic range is about 30 μm. Taking advantages of no requirement of scanning and data reconstruction, the APOM has potential applications in many fields, including optical trapping with novel beams and 3D imaging of thick biological specimens. 2017 Chinese Physical Society.
Number of references:25
Page count:7
Main heading:Lenses
Controlled terms:Micromanipulators - Optical data storage - Optical microscopy - Optical tweezers
Uncontrolled terms:Axial planes - Biological specimens - Experimental demonstrations - Interdisciplinary fields - Optical micromanipulation - Optical trapping effects - Opticaltrapping - Particle manipulation
Classification code:722.1 Data Storage, Equipment and Techniques - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 744.9 Laser Applications
Numerical data indexing:Size 3.00e-05m
DOI:10.7498/aps.66.010702
Funding details: Number: 81427802, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 11574389, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Project supported by the National Natural Science Foundation of China (Grant Nos. 11574389, 81427802).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<526>
Accession number:20165303198447
Title:A new method for desiccant package quality check
Authors:Fan, Yingchun (1, 2); Zhou, Zuofeng (1, 2); Yang, Hongtao (1, 2); Cao, Jianzhong (1, 2)
Author affiliation:(1) Xi’an institute of Optics and Precision Mechanics of CAS, Xi’an; Shaanxi; 710119, China; (2) Shaanxi Normal University, Xi’an; Shaanxi; 710119, China
Corresponding author:Fan, Yingchun(fyc@snnu.edu.cn)
Source title:Advances in Intelligent Systems and Computing
Abbreviated source title:Adv. Intell. Sys. Comput.
Volume:541
Part number:1 of 1
Issue title:Recent Developments in Intelligent Systems and Interactive Applications - Proceedings of the International Conference on Intelligent and Interactive Systems and Applications, IISA 2016
Issue date:2017
Publication year:2017
Pages:73-79
Language:English
ISSN:21945357
ISBN-13:9783319495675
Document type:Conference article (CA)
Conference name:International Conference on Intelligent and Interactive Systems and Applications, IISA2016
Conference date:June 25, 2016 - June 26, 2016
Conference location:Shanghai, China
Conference code:187289
Publisher:Springer Verlag
Abstract:The desiccant is widely used and plays an important role in the daily life and industrial manufacturing. Ironically its package quality check is still a challenging issue. In this paper we present a new method for desiccant package quality check. First, the package lie on the assembly line in arbitrarily direction corrected to vertical direction. Then the colicor information is used to distinguish the contaminated package. Finally, we combine the texture analysis and region growth to obtain the detection result. The experimental results show the effectiveness of the proposed method and the detection accuracy can achieve 92.85%. Springer International Publishing AG 2017.
Number of references:8
Main heading:Quality control
Controlled terms:Driers (materials) - Intelligent systems
Uncontrolled terms:Assembly line - Daily lives - Detection accuracy - Industrial manufacturing - Quality checks - Region growth - Texture analysis - Vertical direction
Classification code:723.4 Artificial Intelligence - 803 Chemical Agents and Basic Industrial Chemicals - 913.3 Quality Assurance and Control
Numerical data indexing:Percentage 9.28e+01%
DOI:10.1007/978-3-319-49568-2_11
Funding details: Number: 2016-KJXX01, Acronym: -, Sponsor: -;Number: Y42961 1213, Acronym: -, Sponsor: -;
Funding text:This work is supported by Foundation of West Light of CAS (No. Y42961 1213) and Distinguished Young Technology of Shaanxi province (No. 2016-KJXX01).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<527>
Accession number:20172703898659
Title:Field-induced lifetime enhancement of photorefractive gratings in a Mn:Fe:KTN crystal
Authors:Lu, Qieni (1, 2); Li, Bihua (1, 2); Li, Zhen (3); Ge, Baozhen (1, 2)
Author affiliation:(1) School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin; 300072, China; (2) Key Laboratory of Opto-electronics Information Technology, Ministry of Education, Tianjin; 300072, China; (3) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China
Corresponding author:Lu, Qieni(qienil@tju.edu.cn)
Source title:Optics Letters
Abbreviated source title:Opt. Lett.
Volume:42
Issue:13
Issue date:July 1, 2017
Publication year:2017
Pages:2407-2410
Language:English
ISSN:01469592
E-ISSN:15394794
CODEN:OPLEDP
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:We report the lifetime enhancement of light-induced refractive index grating by applying a bias field during writing. In comparison with the lifetime of about 10 hours of the photorefractive grating prepared without a bias field, the lifetime of the grating with a 4 kV∕cm bias field can be prolonged to 7.5 years, which is obtained from the dynamic behavior of grating visualized and monitored with digital holographic microscopy. The higher the bias field is applied, the longer the dark decay time of grating can be achieved. The enhanced lifetime of phase grating is attributed to polar nanoregions oriented by external field. This effect is of great significance for electro-holographic device applications. 2017 Optical Society of America.
Number of references:22
Main heading:Photoreactivity
Controlled terms:Holography - Microscopic examination - Refractive index
Uncontrolled terms:Device application - Digital holographic microscopy - Dynamic behaviors - External fields - Lifetime enhancement - Light-induced refractive index - Photorefractive gratings - Polar nanoregions
Classification code:741.1 Light/Optics - 746 Imaging Techniques
Numerical data indexing:Age 7.50e+00yr, Time 3.60e+04s
DOI:10.1364/OL.42.002407
Funding details: Number: SKLST201505, Acronym: -, Sponsor: -;Number: 61077072, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: -, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC) (61077072); Open Project of State Key Laboratory of Transient Optics and Photonic Technology (SKLST201505).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<528>
Accession number:20171803621502
Title:Development and performance test of dynamic simulation system for X-ray pulsar navigation
Authors:Xu, Neng (1, 2, 3); Sheng, Li-Zhi (1); Zhang, Da-Peng (4); Chen, Chen (1, 2); Zhao, Bao-Sheng (1); Zheng, Wei (4); Liu, Chun-Liang (3)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; (4) College of Aerospace Science and Engineering, National University of Defense Technology, Changsha; 410073, China
Corresponding author:Zhao, Bao-Sheng(open@opt.ac.cn)
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:66
Issue:5
Issue date:March 5, 2017
Publication year:2017
Article number:059701
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Institute of Physics, Chinese Academy of Sciences
Abstract:X-ray pulsar navigation is a complete autonomous navigation system, which has broad application prospects. Because of the huge cost of the navigation system, the implementation of ground simulation system is essential to the application of X-ray pulsar navigation. At present, most of researches on the semi physical experiment system are static. The aim of this article is to develop the dynamic simulation experiment system as well as its performance test. Specifically, this system consists of the dynamic signal database, X-ray simulation source, vacuum system and detection system designed for different science purposes. The core component of the X-ray source is the gate controlled X-ray tube, which can simulate the pulse profile of arbitrary waveform. The detecting system is based on the silicon drift detector with high time response capability. It uses trapezoidal shape for signal processing, and the timing resolution of the detection system is better than 2 μs. In addition, the dynamic signal generation method is given by analyzing the time transformation model while the SINC interpolation method is provided to generate the dynamic pulse profile. Finally, the spacecraft revolving around the earth for a circle and receiving a pulse signal of Crab is simulated. In the simulation, the orbital radius of satellite is 6578 km and the orbital period is 5400 s. The Crab pulsar is selected, and the pulse period is 33.4 ms, the number of photons received by the detector is 200 per second. As a contrast, a set of static experiments is also performed. The correlation coefficient between the cumulative pulse profile and the standard pulse profile is 0.9953. However, the correlation coefficient decreases gradually, from 0.9094 at 300 s to 0.4080 at 5400 s, in the dynamic experiment. Then, the pulse period is searched from the arrival time of photons. The periodicity of the pulse signal is sinusoidal when the search period is 60 s. The change rate of photon flux is less than 2%, and the influence on the period search is negligible. The variation of pulse period is consistent with the motion law of spacecraft, which indicates that spacecraft motion is the dominant factor in time conversion. Finally, the arrival time of photons is transformed into the time at the solar system barycenter, indicating that the correlation coefficient between cumulative pulse profile and standard pulse profile is 0.9882. The result shows that the simulation system can simulate the X-ray pulse signal received by the spacecraft in orbit, which can provide the experimental basis for verifying the navigation algorithm and calibrating the detector performance. 2017 Chinese Physical Society.
Number of references:14
Page count:7
Main heading:X ray detectors
Controlled terms:Electromagnetic wave emission - Navigation systems - Orbits - Photons - Pulsars - Shellfish - Signal processing - Spacecraft - X ray tubes - X rays
Uncontrolled terms:Autonomous navigation systems - Correlation coefficient - Dynamic experiment - Dynamic simulation experiment - Dynamic simulation systems - Semi-physical experiments - Silicon Drift Detector - X-ray pulsars
Classification code:461.9 Biology - 655.1 Spacecraft, General - 657.2 Extraterrestrial Physics and Stellar Phenomena - 711 Electromagnetic Waves - 716.1 Information Theory and Signal Processing - 931.3 Atomic and Molecular Physics - 932.1 High Energy Physics
Numerical data indexing:Percentage 2.00e+00%, Size 6.58e+06m, Time 2.00e-06s, Time 3.34e-02s, Time 5.40e+03s
DOI:10.7498/aps.66.059701
Funding details: Number: -, Acronym: CAAS, Sponsor: Chinese Academy of Agricultural Sciences;Number: 61471357, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:Project supported by the National Natural Science Foundation of China (Grant No. 61471357) and the West Light Foundation of the Chinese Academy Sciences.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<529>
Accession number:20180404671046
Title:Optical system design of space fisheye lens and performance analysis
Authors:Geng, Dan (1, 2); Yang, Hong-Tao (2); Mei, Chao (2); Li, Ya-Hui (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:104624S
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:In order to reduce the number of cameras which are equipped in spacecraft, and using a small amount of cameras to monitor the whole spacecraft, an optical system of fisheye lens is designed based on the principle of non-similarity. The optical system uses a high definition CCD which has 1920×1080 pixels (the size of pixel is 5.5μm×5.5μm). The effective focal length of the fisheye optical system is 5.0 mm, the F number is 5.0, and the full field of view (FOV) is 180°. Its modulation transfer function (MTF) in all FOV is more than 0.5 at 91 lp/mm with great image. And the relative illumination of marginal FOV reaches 85.2%, this guarantees that the optical system has a good of illumination uniformity. Taken into account that the camera will be used in the intricate space environment, the article was analyzed the influence of environmental factors, the changing temperatures and vacuum environment, on the imaging quality of the optical system. The results show that the optical system of fisheye lens still has good imaging performance under the temperature -40?~+60? in vacuum environment. In the imaging process, the stray light which likes a red ring has been found at the edge of the image when the strong light source appeared in the middle of the image, it is similar to a positive ghost. After analysis, the results show that stray light mainly comes from the reflected light among the lens surfaces. So, there is a proposal that the radius of these lens surfaces should be restricted under optimization. Through the further optimizing and experiment, the consequence proves that the stray light was successfully eliminated. 2017 SPIE.
Number of references:8
Main heading:Optical systems
Controlled terms:Cameras - Lenses - Light sources - Pixels - Stray light - Systems analysis
Uncontrolled terms:Athermalization - Effective focal lengths - Environmental factors - Fish-eye lens - Illumination uniformity - Modulation transfer function (MTF) - Performance analysis - Relative illumination
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 961 Systems Science
Numerical data indexing:Percentage 8.52e+01%, Size 5.00e-03m
DOI:10.1117/12.2285587
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<530>
Accession number:20180404664653
Title:Tunable Narrowband Filter Based on Guided Mode Resonance
Authors:Hei, Xu-Wei (1, 2, 3); Zhang, Ling-Xuan (2, 3, 4); Liu, Ji-Hong (1); Ge, Zhi-Qiang (2, 3, 4); Li, Si-Qi (2, 3, 4); Li, Xing-Yi (2, 3, 4); Wang, Guo-Xi (2, 3, 4); Wang, Lei-Ran (2, 3, 4); Zhang, Wen-Fu (2, 3, 4)
Author affiliation:(1) School of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an; 710121, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an; 710119, China; (3) China-UK Joint Research Center of Micro/Nano Photonics, Xi'an; 710119, China; (4) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Wang, Guo-Xi(wangguoxi@opt.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:12
Issue date:December 2017
Publication year:2017
Article number:1223001
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:A separated guided-mode resonance filter was presented, which is consisted of a grating layer and two planar dielectric waveguide layers partitioned by an air gap. The optical responses of the grating under different parameters are analyzed by time domain finite difference method. The research shows that the resonance wavelength of the grating can be tuned by varying the height of air gap when the TM polarization incident wave is applied.Furthermore, the resonance wavelengths almost vary in a linear relation respect to the height of air gap. A narrow linewidth characteristic can be obtained by applying a shallow grating. The simulation results show that the wavelength can be tuned from 1 515 to 1 558 nm with the FWHM less than 0.6 nm. 2017, Science Press. All right reserved.
Number of references:15
Main heading:Resonance
Controlled terms:Bandpass filters - Finite difference method - Guided electromagnetic wave propagation - Time domain analysis - Waveguide filters
Uncontrolled terms:Filter - Grating - Guided-mode resonance - Narrow bands - Tunable
Classification code:703.2 Electric Filters - 711.1 Electromagnetic Waves in Different Media - 921 Mathematics - 921.6 Numerical Methods - 931.1 Mechanics
Numerical data indexing:Size 1.52e-06m to 1.56e-06m, Size 6.00e-10m
DOI:10.3788/gzxb20174612.1223001
Funding details: Number: 11404388, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61405243, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61475188, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61635013, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61675231, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: XDB 24030600, Acronym: CAS, Sponsor: Chinese Academy of Sciences;
Funding text:The National Natural Science Foundation of China (Nos. 11404388, 61475188, 61675231, 61635013, 61405243), CAS "Light of West China" Program (No.XAB2015B26), the Strategic Priority Research Program of the Chinese Academy of Sciences( No. XDB 24030600).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<531>
Accession number:20173604116492
Title:Natural healing behavior of gamma radiation induced defects in multicomponent phosphate glasses used for high energy UV lasers
Authors:He, Quanlong (1, 2); Xue, Yaoke (3); Wang, Pengfei (1); Sun, Mengya (1, 2); Lu, Min (1); Peng, Bo (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi'an; 710119, China; (2) University of Chinese Academy of Sciences (UCAS), Beijing; 100049, China; (3) Space Optical Technology Research Department, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi'an; 710119, China
Source title:Optical Materials Express
Abbreviated source title:Opt. Mater. Express
Volume:7
Issue:9
Issue date:2017
Publication year:2017
Pages:3284-3293
Language:English
E-ISSN:21593930
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:Obvious healing behavior of gamma radiation induced defects in multicomponent phosphate glass was observed at room temperature. The recovery of the defects depends on the ratio of H
Number of references:18
Main heading:High energy lasers
Controlled terms:Charge transfer - Defects - Gamma rays - Glass
Uncontrolled terms:General model - Multicomponents - Phosphate glass - Radiation induced defects - UV lasers
Classification code:744.1 Lasers, General - 802.2 Chemical Reactions - 812.3 Glass - 931.3 Atomic and Molecular Physics - 951 Materials Science
Numerical data indexing:Size 3.85e-07m, Size 5.25e-07m
DOI:10.1364/OME.7.003284
Funding details: Number: 61307046, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:National Natural Science Foundation of China (NSFC No.61307046); Natural Science Basic Research Project in Shaanxi Province (2015JM6315); State Key Research and Development Plan (2016YFB0303804); West Young Scholars Program of the Chinese Academy of Sciences (XAB2016A08); and Youth Innovation Promotion Association of the Chinese Academy of Sciences (2017446), China.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<532>
Accession number:20174104255072
Title:New segmentation-based tone mapping algorithm for high dynamic range image
Authors:Duan, Weiwei (1, 2); Guo, Huinan (1); Zhou, Zuofeng (1, 2); Huang, Huimin (1); Cao, Jianzhong (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xinxi Road No17, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10420
Part number:1 of 1
Issue title:Ninth International Conference on Digital Image Processing, ICDIP 2017
Issue date:2017
Publication year:2017
Article number:104202Z
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510613041
Document type:Conference article (CA)
Conference name:9th International Conference on Digital Image Processing, ICDIP 2017
Conference date:May 19, 2017 - May 22, 2017
Conference location:Hong Kong, China
Conference code:130764
Sponsor:International Association of Computer Science and Information Technology; Sichuan Province Computer Federation; Southwest Jiaotong University
Publisher:SPIE
Abstract:The traditional tone mapping algorithm for the display of high dynamic range (HDR) image has the drawback of losing the impression of brightness, contrast and color information. To overcome this phenomenon, we propose a new tone mapping algorithm based on dividing the image into different exposure regions in this paper. Firstly, the over-exposure region is determined using the Local Binary Pattern information of HDR image. Then, based on the peak and average gray of the histogram, the under-exposure and normal-exposure region of HDR image are selected separately. Finally, the different exposure regions are mapped by differentiated tone mapping methods to get the final result. The experiment results show that the proposed algorithm achieve the better performance both in visual quality and objective contrast criterion than other algorithms. 2017 SPIE.
Number of references:14
Main heading:Image segmentation
Controlled terms:Conformal mapping
Uncontrolled terms:Color information - different exposure regions - HDR image - High dynamic - High dynamic range images - Local binary patterns - Tone mapping - Visual qualities
Classification code:405.3 Surveying
DOI:10.1117/12.2282031
Funding details: Number: No.XAB2015B21, Acronym: -, Sponsor: -;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;
Funding text:This work has been supported by the CAS "Light of West China" Program (No.XAB2015B21).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<533>
Accession number:20171703607628
Title:Influence analysis of satellite drift angle on spectrum recovery precision of large aperture static interferometer spectrometer
Authors:Li, Siyuan (1, 2, 3); Liu, Huan (1); Zhang, Geng (1); Zhang, Zhoufeng (1, 2, 3); Zhao, Qiang (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) University of Chinese, Academy of Sciences, Beijing; 100049, China; (3) Xi'an Jiaotong University, Xi'an; 710049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10256
Part number:1 of 1
Issue title:Second International Conference on Photonics and Optical Engineering
Issue date:2017
Publication year:2017
Article number:102560W
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Conference on Photonics and Optical Engineering
Conference date:October 14, 2016
Conference location:Xi'an, China
Conference code:127345
Publisher:SPIE
Abstract:Large aperture static interferometer spectrometer (LASIS) use the method of push-boom to get the geometric and spectral characteristics of ground target, the particularity of principle requires the movement of satellite must be in the same direction with spectrometers detectors. Drift angle of satellite leading to abnormal image shifts in the column direction which should be perpendicular to the detector and can seriously affect the spectrum recovery precision of collected data. This paper analyzes the influence mechanism of drift angle for spectrum recovery precision. Simulation based on the actual on-orbit data analyses the effects of different drift angle of relative mean deviation and relative secondary deviation rehabilitation of the spectrum, besides the influence of spectral angle similarity. These studies have shown that, when the lateral deviation due to the drift angle on the across track is less than 0.3 pixel, the effect for the relative mean deviation of the inversive spectra will be no more than 7%. when the lateral deviation due to the drift angle on the across track is larger than one pixel, even though the resampling correction is proceeded, the restored spectral data cube still shows an relative mean error more than 10%, which seriously affect the availability of spectral data. 2017 SPIE.
Number of references:10
Main heading:Secondary recovery
Controlled terms:Interferometers - Orbits - Photonics - Pixels - Recovery - Satellites - Spectrometers
Uncontrolled terms:Drift angle - Mean deviation - Relative secondary deviation - Spectral angles - Spectrum recoveries
Classification code:511.1 Oil Field Production Operations - 655.2 Satellites - 741.3 Optical Devices and Systems - 941.3 Optical Instruments
Numerical data indexing:Percentage 1.00e+01%, Percentage 7.00e+00%
DOI:10.1117/12.2256460
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<534>
Accession number:20171603576223
Title:Super-resolution reconstruction theory in structured illumination microscopy
Authors:Zhou, Xing (1); Dan, Dan (1); Qian, Jia (1); Yao, Baoli (1); Lei, Ming (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China
Corresponding author:Lei, Ming(leiming@opt.ac.cn)
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:37
Issue:3
Issue date:March 10, 2017
Publication year:2017
Article number:0318001
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:In recent years, the resolution of far field optical imaging has broken the limit of diffraction limit with the appearance of new fluorescent probes and the improvement of imaging methods. The fluorescence microscopy based on structured illumination has become one of the main superresolution imaging techniques owing to its advantages such as fast imaging speed and light toxicity. The most critical technologies in structured illumination microscopy are concentrated on rapid control of the high-quality illumination pattern and the image reconstruction method. An unsuitable method will generate the artifacts in the reconstruction super-resolution image and that may confuse the scientific evaluation of biological morphology. Several typical structured illumination microscopic super resolution reconstruction algorithms are compared. It is proven that the image transform of the structured illumination microscopic super resolution reconstruction algorithm based on image recombination transform can effectively solve the low structure light modulation under the super-resolution image reconstruction problem, and reduce the excitation power of the structured illumination microscopy. 2017, Chinese Lasers Press. All right reserved.
Number of references:49
Page count:12
Main heading:Image reconstruction
Controlled terms:Diffraction - Fluorescence - Fluorescence microscopy - Microscopic examination - Optical resolving power - Quality control
Uncontrolled terms:High quality illumination - Image reconstruction methods - Structured illumination - Structured illumination microscopy - Super resolution - Super resolution imaging - Super resolution reconstruction - Super-resolution image reconstruction
Classification code:741.1 Light/Optics - 746 Imaging Techniques - 913.3 Quality Assurance and Control - 931.4 Quantum Theory; Quantum Mechanics
DOI:10.3788/AOS201737.0318001
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<535>
Accession number:20174304308749
Title:Self-weighted multiview clustering with multiple graphs
Authors:Nie, Feiping (1); Li, Jing (1); Li, Xuelong (2)
Author affiliation:(1) School of Computer Science, Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an; 710072, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Source title:IJCAI International Joint Conference on Artificial Intelligence
Abbreviated source title:IJCAI Int. Joint Conf. Artif. Intell.
Volume:0
Part number:1 of 1
Issue title:26th International Joint Conference on Artificial Intelligence, IJCAI 2017
Issue date:2017
Publication year:2017
Pages:2564-2570
Language:English
ISSN:10450823
ISBN-13:9780999241103
Document type:Conference article (CA)
Conference name:26th International Joint Conference on Artificial Intelligence, IJCAI 2017
Conference date:August 19, 2017 - August 25, 2017
Conference location:Melbourne, VIC, Australia
Conference code:130864
Sponsor:Alibaba Group; Artificial Intelligence Journal; et al.; Melbourne Convention Bureau; Victoria Government; Xiaoi
Publisher:International Joint Conferences on Artificial Intelligence
Abstract:In multiview learning, it is essential to assign a reasonable weight to each view according to the view importance. Thus, for multiview clustering task, a wise and elegant method should achieve clustering multiview data while learning the view weights. In this paper, we propose to explore a Laplacian rank constrained graph, which can be approximately as the centroid of the built graph for each view with different confidences. We start our work with a natural thought that the weights can be learned by introducing a hyperparameter. By analyzing the weakness of this way, we further propose a new multiview clustering method which is totally selfweighted. More importantly, once the target graph is obtained in our models, we can directly assign the cluster label to each data point and do not need any postprocessing such as K-means in standard spectral clustering. Evaluations on two synthetic datasets indicate the effectiveness of our methods. Compared with several representative graphbased multiview clustering approaches on four realworld datasets, the proposed methods achieve the better performances and our new clustering method is more practical to use.
Number of references:26
Main heading:Artificial intelligence
Controlled terms:Cluster analysis - Clustering algorithms
Uncontrolled terms:Clustering methods - Hyper-parameter - Multi-view clustering - Multi-view datum - Multi-view learning - Real-world datasets - Spectral clustering - Synthetic datasets
Classification code:723 Computer Software, Data Handling and Applications - 723.4 Artificial Intelligence - 903.1 Information Sources and Analysis
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<536>
Accession number:20171903647517
Title:The Recognition of the Point Symbols in the Scanned Topographic Maps
Authors:Miao, Qiguang (1); Xu, Pengfei (2); Li, Xuelong (3); Song, Jianfeng (1); Li, Weisheng (4); Yang, Yun (5, 6)
Author affiliation:(1) School of Computer Science and Technology, Xidian University, Xi'an; 710071, China; (2) Information Science and Technology School, Northwest University, Xi'an; 710127, China; (3) Center for OPTical IMagery Analysis and Learning, State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (4) College of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing; 400065, China; (5) Xi'an Research Institute of Surveying and Mapping, Xi'an; 710054, China; (6) State Key Laboratory of GeoInformation Engineering, Xi'an; 710054, China
Corresponding author:Xu, Pengfei(pfxu@nwu.edu.cn)
Source title:IEEE Transactions on Image Processing
Abbreviated source title:IEEE Trans Image Process
Volume:26
Issue:6
Issue date:June 2017
Publication year:2017
Pages:2751-2766
Article number:7575646
Language:English
ISSN:10577149
CODEN:IIPRE4
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:It is difficult to separate the point symbols from the scanned topographic maps accurately, which brings challenges for the recognition of the point symbols. In this paper, based on the framework of generalized Hough transform (GHT), we propose a new algorithm, which is named shear line segment GHT (SLS-GHT), to recognize the point symbols directly in the scanned topographic maps. SLS-GHT combines the line segment GHT (LS-GHT) and the shear transformation. On the one hand, LS-GHT is proposed to represent the features of the point symbols more completely. Its R-table has double level indices, the first one is the color information of the point symbols, and the other is the slope of the line segment connected a pair of the skeleton points. On the other hand, the shear transformation is introduced to increase the directional features of the point symbols; it can make up for the directional limitation of LS-GHT indirectly. In this way, the point symbols are detected in a series of the sheared maps by LS-GHT, and the final optimal coordinates of the setpoints are gotten from a series of the recognition results. SLS-GHT detects the point symbols directly in the scanned topographic maps, totally different from the traditional pattern of extraction before recognition. Moreover, several experiments demonstrate that the proposed method allows improved recognition in complex scenes than the existing methods. 2017 IEEE.
Number of references:31
Main heading:Maps
Controlled terms:Hough transforms
Uncontrolled terms:Double level - Line segment - Shear transformation - The point symbol - Topographic map
Classification code:405.3 Surveying - 921.3 Mathematical Transformations
DOI:10.1109/TIP.2016.2613409
Funding details: Number: NCET-12-0919, Acronym: NCET, Sponsor: Program for New Century Excellent Talents in University;Number: CXY1441, Acronym: -, Sponsor: Xi'an Science and Technology Bureau;Number: SKLGIE2014-M-4-4, Acronym: -, Sponsor: -;Number: 2016M592832, Acronym: -, Sponsor: -;Number: K5051303018, Acronym: -, Sponsor: -;Number: JB150317, Acronym: -, Sponsor: -;Number: K5051203020, Acronym: -, Sponsor: -;Number: BDY081422, Acronym: -, Sponsor: -;Number: JB150313, Acronym: -, Sponsor: -;Number: 2010JM8027, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: 2016JQ6029, Acronym: -, Sponsor: Natural Science Foundation of Shaanxi Province;Number: U1404620, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61272280, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61540028, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 41271447, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61502387, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 201600031, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61472302, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported in part by the National Natural Science Foundations of China under Grant 61472302, Grant 61272280, Grant U1404620, Grant 61502387, Grant 61540028, and Grant 41271447, in part by the Open Projects Program of National Laboratory of Pattern Recognition under Grant 201600031, in part by the Program for New Century Excellent Talents in University under Grant NCET-12-0919, in part by the Fundamental Research Funds for the Central Universities under Grant K5051203020, Grant K5051303018, Grant JB150313, Grant JB150317, and Grant BDY081422, in part by the Special Program for Applied Research on Super Computation of the NSFC Guangdong Joint Fund (the second phase), in part by the Natural Science Foundation of Shaanxi Province under Grant 2010JM8027 and Grant 2016JQ6029, in part by the Creative Project of the Science and Technology State of Xi'an under Grant CXY1441(1), in part by the State Key Laboratory of Geo-information Engineering under Grant SKLGIE2014-M-4-4, and in part by the 59th China's Post-doctoral Science Fund under Grant 2016M592832.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<537>
Accession number:20171903644521
Title:Observation of spin and orbital rotation of red blood cell in dual-beam fibre-optic trap with transverse offset (Open Access)
Authors:Chen, Xinlin (1); Xiao, Guangzong (1, 2); Han, Xiang (1); Xiong, Wei (1); Luo, Hui (1); Yao, Baoli (2)
Author affiliation:(1) College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha; 410073, China; (2) State Key Laboratory of Transient Optics and Photonic, Chinese Academy of Sciences, Xian; 710068, China
Corresponding author:Xiao, Guangzong(xiaoguangzong@nudt.edu.cn)
Source title:Journal of Optics (United Kingdom)
Abbreviated source title:J. Opt.
Volume:19
Issue:5
Issue date:May 2017
Publication year:2017
Article number:055612
Language:English
ISSN:20408978
E-ISSN:20408986
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:The spin and orbital rotation of the red blood cell (RBC) are achieved simultaneously by introducing a transverse offset to the dual-beam fibre-optic trap. The motion type of the captured RBC could be controlled by adjusting the offset distance. When the offset distance is relatively small, the RBC is observed to spin in the trap centre, with the spin frequency increasing linearly with the offset distance. Once the offset distance is above a critical value, the RBC will rotate along an elliptic orbit, together with the spin motion. The orbital rotation frequency and spin frequency both decrease with the increased offset distance. This technique allows mixing and viewing living cells from different perspectives concurrently without exposing them to any mechanical contact, and is generally applicable to biological and medical research. 2017 IOP Publishing Ltd.
Number of references:23
Main heading:Cells
Controlled terms:Blood - Cytology - Fiber optics - Spark plugs
Uncontrolled terms:Cell analysis - Critical value - Laser trapping - Mechanical contact - Medical research - Offset distances - Orbital rotations - Transverse offset
Classification code:461.2 Biological Materials and Tissue Engineering - 612.1.1 Internal Combustion Engine Components - 741.1.2 Fiber Optics
DOI:10.1088/2040-8986/aa66c1
Funding details: Number: SKLST201507, Acronym: -, Sponsor: -;Number: -, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: 61308058, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China (61308058) and by the Open Research Fund (SKLST201507) of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<538>
Accession number:20180404670996
Title:Aircraft relative attitude measurement based on binocular vision
Authors:Zhao, Yincen (1, 2); Zhang, Geng (1); Hu, Bingliang (1); Peng, Bo (1, 2)
Author affiliation:(1) Xi'an Institute Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10462
Part number:1 of 1
Issue title:AOPC 2017: Optical Sensing and Imaging Technology and Applications
Issue date:2017
Publication year:2017
Article number:1046236
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614055
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133396
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:With the development of computer vision and image processing technology, vision measurement has been paid more and more attention. In the aviation field, estimating the relative attitude of aircraft using computer vision is important in aircraft flight-refueling, target tracking and positioning. However, the existing methods to measure the attitude of aircraft have some problems. In this paper, we propose to use binocular vision measurement method to acquire the attitude data of aircraft. This method has the advantages of simple realization and high practical value, which can also be widely used in visional measurement applications. 2017 SPIE.
Number of references:9
Main heading:Stereo image processing
Controlled terms:Aircraft - Aircraft detection - Binocular vision - Computer vision - Optical data processing - Stereo vision
Uncontrolled terms:Aircraft flight - Attitude estimation - Binocular stereo vision - Camera calibration - Feature extraction and matching - Image processing technology - Relative attitude - Vision measurement
Classification code:652.1 Aircraft, General - 716.2 Radar Systems and Equipment - 723.2 Data Processing and Image Processing - 741.2 Vision
DOI:10.1117/12.2285028
Funding details: Number: -, Acronym: CAAS, Sponsor: Chinese Academy of Agricultural Sciences;Number: 61501456, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Funding text:This work was supported by the National Natural Science Foundation of China (No. 61501456) and "Light of West China" Program of Chinese Academy of Science.
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<539>
Accession number:20172103685893
Title:Optimization of microchannel cooler of high power diode laser array package
Authors:Wu, Dihai (1, 3); Zhang, Pu (1); Nie, Zhiqiang (1); Liang, Xuejie (2); Wang, Jingwei (2); Liu, Xingsheng (1, 2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an High-Tech Zone, No. 17 Xinxi Road, Xi'an, Shaanxi; 710119, China; (2) Focuslight Technologies Inc., Xi'an High-Tech Zone No. 56 Zhangba 6th Road, Xi'an, Shaanxi; 710077, China; (3) University of Chinese Academy of Sciences, No. 19 Yuquan Road, Shijingshan District, Beijing; 100049, China
Corresponding author:Wu, Dihai(wudihai@opt.cn)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10085
Part number:1 of 1
Issue title:Components and Packaging for Laser Systems III 2017
Issue date:2017
Publication year:2017
Article number:100850I
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510606111
Document type:Conference article (CA)
Conference name:Components and Packaging for Laser Systems III 2017
Conference date:January 31, 2017 - February 2, 2017
Conference location:San Francisco, CA, United states
Conference code:127684
Sponsor:The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:High power diode laser arrays have found increasing applications in the field of pumping solid-state lasers and fiber lasers. Due to the thermal crosstalk across diode laser arrays and non-uniformity of local flow rate within microchannel cooler, junction temperature distribution becomes inhomogeneous, consequently leading to spectrum broadening and large beam divergence of diode laser pumping sources. In this work, an analytical method and numerical heat transfer based on finite volume method were employed to optimize the inner structure of microchannel cooler so as to obtain low thermal resistance and uniform junction temperature distribution for the diode laser arrays. Three-dimensional numerical models were developed to study the fluid flow and heat transfer of copper stacked microchannel coolers with different dimensions and arrangements of inner channels and fins. More uniform junction temperature distribution of diode laser array package could be achieved by self-heating compensation with specific coolant covering width. These results could provide significant guidance for the design of microchannel coolers of high power diode laser arrays for better performance. 2017 SPIE.
Number of references:16
Main heading:Semiconductor lasers
Controlled terms:Cooling systems - Crosstalk - Diodes - Fiber lasers - Finite volume method - Flow of fluids - Heat resistance - Heat transfer - Laser beam welding - Microchannels - Numerical methods - Packaging - Power semiconductor diodes - Pressure drop - Pumping (laser) - Solid state lasers - Temperature distribution
Uncontrolled terms:Fluid flow and heat transfers - High-power diode laser arrays - Junction temperatures - Microchannel coolers - Numerical heat transfer - Thermal crosstalk - Three-dimensional numerical models - Uniform junction temperatures
Classification code:631.1 Fluid Flow, General - 641.1 Thermodynamics - 641.2 Heat Transfer - 694.1 Packaging, General - 744 Lasers - 921.6 Numerical Methods
DOI:10.1117/12.2255693
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<540>
Accession number:20172403762827
Title:Novel long-period fiber gratings: Fabrication and sensing applications
Authors:Ren, Liyong (1); Ren, Kaili (1, 2); Kong, Xudong (1); Liang, Jian (1); Ju, Haijuan (1); Wu, Zhaoxin (2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) Xi'an Jiaotong University, Xi'an; 710049, China
Corresponding author:Ren, Liyong(renliy@opt.ac.cn)
Source title:Optics InfoBase Conference Papers
Abbreviated source title:Opt. InfoBase Conf. Pap
Volume:Part F43-CLEO_AT 2017
Part number:1 of 1
Issue title:CLEO: Applications and Technology, CLEO_AT 2017
Issue date:2017
Publication year:2017
Language:English
ISBN-13:9781557528209
Document type:Conference article (CA)
Conference name:CLEO: Applications and Technology, CLEO_AT 2017
Conference date:May 14, 2017 - May 19, 2017
Conference location:San Jose, CA, United states
Conference code:135878
Publisher:OSA - The Optical Society
Abstract:We presented two novel schemes for fabricating micro-tapered long-period fiber gratings (LPFGs) and helical LPFGs, respectively, by periodically tapering and by directly twisting single mode fibers. Superior sensing characteristics of them are also demonstrated experimentally. 2017 OSA.
Number of references:6
Page count:2
Main heading:Diffraction gratings
Controlled terms:Fabrication - Single mode fibers
Uncontrolled terms:Long period fiber grating - Sensing applications - Sensing characteristics
Classification code:741.1.2 Fiber Optics - 741.3 Optical Devices and Systems
DOI:10.1364/CLEO_AT.2017.AW4B.6
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<541>
Accession number:20173404070391
Title:AR(p) dynamic catastrophe ranking method of target threat assessment under the loss of data
Authors:Tang, Xin (1); Yang, Jianjun (2); Feng, Song (3); Ren, Baoxiang (2)
Author affiliation:(1) Equipment Management and Safety Engineering College, Air Force Engineering University, Xi'an; 710051, China; (2) Science Department, Air Force Engineering University, Xi'an; 710051, China; (3) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an; 710119, China
Source title:Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics
Abbreviated source title:Xi Tong Cheng Yu Dian Zi Ji Shu/Syst Eng Electron
Volume:39
Issue:5
Issue date:May 1, 2017
Publication year:2017
Pages:1058-1064
Language:Chinese
ISSN:1001506X
CODEN:XGYDEM
Document type:Journal article (JA)
Publisher:Chinese Institute of Electronics
Abstract:For the problems of the loss of observation data, the hardness on overall consideration of dynamic threat situation of the coming target, the need of confirming index weights of most existing methods and too much rely on expertise, the AR(p) dynamic catastrophe ranking method of target threat assessment is proposed by combining the AR(p) predicting model, time series weight and catastrophe theory. The AR(p) model is used to predict the missing target data on time series, which provides the basic data for threat assessment using all times' data. Time series weight is gained by the inverse form of the Poisson distribution, and the target associating information of the current time and the former time is comprehensively considered. The core thoughts of catastrophe ranking is abstracted based on the catastrophe theory, and the function of sub layer indexes on its upper layer indexes in the target threat assessment index system is attributed to the function of control variable on state variable. The degree of this function is solved by the normalization formulae, and the target threat assessment value is acquired through the bottom layer to the top layer according to this mode. The experiment result indicates that the AR(p) dynamic catastrophe ranking method can be used for target threat assessment under the loss of target data, which is more close to the actual combat. It is unnecessary to compute the weights of all indexes, which is concise, efficient, and easy to implement. In addition, the assessment result is more reasonable and has a certain application value due to the comprehensive consideration of the dynamic threat situation of targets. 2017, Editorial Office of Systems Engineering and Electronics. All right reserved.
Number of references:17
Main heading:Disasters
Controlled terms:Inverse problems - Poisson distribution - System theory - Time series
Uncontrolled terms:Catastrophe theory - Control variable - Dynamic evaluation - Observation data - Predicting models - Ranking methods - The loss of data - Threat assessment
Classification code:922.1 Probability Theory - 922.2 Mathematical Statistics - 961 Systems Science
DOI:10.3969/j.issn.1001-506X.2017.05.17
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<542>
Accession number:20172803903573
Title:Multiple Targets Real-time Intersection of Optic-electronic Theodolite
Authors:Wu, Jing (1, 2); Su, Xiu-Qin (1); Guo, Min (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710019, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Su, Xiu-Qin(suxiuqin@opt.ac.cn)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:46
Issue:4
Issue date:April 1, 2017
Publication year:2017
Article number:0411003
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:In order to achieve the real-time calculating about the flight trajectories of the multiple targets and guiding the equipment to track the targets, a real-time multi-target intersection method was proposed. Such method is based on the characteristic of target movement and the inherent characteristic of optic-electronic theodolite tracking measurement. This algorithm can achieve the goals of sorting homologous measurement data and eliminating the false target trajectory, and finally get the true target trajectory. The algorithm is applied to the optic-electronic theodolite measuring system which is under the condition of target N≤3 and communication cycle being 50ms. The experiment results show that the method can guide the measuring equipment to track accurately, stably and in real time. 2017, Science Press. All right reserved.
Number of references:13
Main heading:Trajectories
Controlled terms:Optics - Photonics
Uncontrolled terms:Communication cycle - Flight trajectory - Inherent characteristics - Intersection method - Measuring equipments - Multi-target tracks - Real time - Target trajectory
Classification code:741.1 Light/Optics
Numerical data indexing:Time 5.00e-02s
DOI:10.3788/gzxb20174604.0411003
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<543>
Accession number:20172003665158
Title:Study on Position-Sensitive Anode in Photon Counting Imaging Detector
Authors:Liu, Yongan (1, 2); Li, Linsen (1, 2); Liu, Zhe (1); Qiang, Pengfei (1, 2); Liu, Duo (1, 2); Sheng, Lizhi (1); Tian, Jinshou (1); Zhao, Baosheng (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:37
Issue:4
Issue date:April 10, 2017
Publication year:2017
Article number:0404001
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Wedge and strip anode(WSA) is one of charge division anodes. In the photon counting imaging detector, the role of the WSA is to decode the incident position of photon events. The anode performance parameters have an important influence on the imaging performance of the detector. The inter-electrode capacitance of WSA is studied, and its calculation formula is obtained by the theoretical model. The WSA panel with different parameters is designed and prepared. The relationship between cycle length, insulation gap width, anode collecting area, substrate material and the anode inter-electrode capacitance is analyzed. Test results show that the inter-electrode capacitance is in accordance with the theoretical calculation result and the deviation between calculated value and test value is within 10%. 2017, Chinese Lasers Press. All right reserved.
Number of references:12
Page count:7
Main heading:Anodes
Controlled terms:Capacitance - Detectors - Photons
Uncontrolled terms:Calculation formula - Electrode capacitance - Imaging performance - Photon-counting imaging - Position-sensitive anodes - Spatial resolution - Theoretical calculations - Theoretical modeling
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 714.1 Electron Tubes - 931.3 Atomic and Molecular Physics
Numerical data indexing:Percentage 1.00e+01%
DOI:10.3788/AOS201737.0404001
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<544>
Accession number:20174304289418
Title:Design of Hyperspectral Polarimetic Imaging System Based on LCTF and LCVR
Authors:Yang, Fan-Chao (1, 2); Li, Yong (1); Hu, Bing-Liang (1); Kong, Liang (1); Wei, Ru-Yi (1); Li, Hong-Bo (1, 2)
Author affiliation:(1) Laboratory of Spectral Imaging Technique, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:37
Issue:8
Issue date:August 1, 2017
Publication year:2017
Pages:2610-2614
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press
Abstract:A hyperspectral polarimetic imaging system was proposed based on LCTF and LCVR. The system could break the limit of incomplete polarization acquiring by the conventional single LCTF system and acquire the full Stokes parameters of targets. It used the 4 different groups of phase retardance of LCVRs to build a 4×4 inversion algorithm matrix to calculate the original full polarization information. After calibration of the Retardance-Voltage characters of two LCVRs, the inversion algorithm was verified by laser at 633nm. The measured errors of full Stokes parameters, corresponding calculated degree and angel of linear polarization were analyzed, and the inversion algorithm was proved work well. The results indicated that the hyperspectral polarimetric imaging system could provide reliable hyperspectral and polarization information for remote sensing. 2017, Peking University Press. All right reserved.
Number of references:16
Main heading:Hyperspectral imaging
Controlled terms:Imaging systems - Polarimeters - Polarization - Remote sensing
Uncontrolled terms:Full polarization - Inversion algorithm - LCTF - LCVR - Linear polarization - Phase retardance - Polarimetric imaging - Stokes parameters
Classification code:746 Imaging Techniques - 941.3 Optical Instruments
Numerical data indexing:Size 6.33e-07m
DOI:10.3964/j.issn.1000-0593(2017)08-2610-05
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<545>
Accession number:20181104894289
Title:Calculation of Optical Transfer Function for Image Motion Based on Statistical Moments
Authors:Tian, Liude (1, 2); Wang, Tao (1); Zhao, Huaixue (1); Liu, Yining (1); Zhao, Jianke (1); Zhou, Yan (1); Liu, Zhaohui (1)
Author affiliation:(1) Testing Technology Service Center, Xi'anInstitute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:37
Issue:12
Issue date:December 10, 2017
Publication year:2017
Article number:1211002
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:In order to evaluate the influence of the tracking and imaging platform on the modulation transfer function of the image accurately and provide a theoretical basis for the determination of the platform's technical specifications, an analytical and numerical model is established, which is used to calculate the movement optical transfer function by the image motion function. The truncation error of the finite term is given, and the truncation error is less than 10% when the 7 order approximation is taken. The proposed model includes analytic expressions of low frequency sinusoidal motion and high frequency sinusoidal motion. The tracking angular velocity errors of a tracking imaging platform are analyzed by frequency spectrum. The fundamental components of frequency spectrum are composed by multiple low frequency sinusoidal vibration components. Image motion caused by the tracking angular velocity error can be approximated to uniform linear motion at the exposure time scale. The modulation transfer function is calculated by the statistical moment method, and is almost equal to that calculated by the root mean square of the tracking angular velocity error. The calculated deviation is less than 0.01 at 200 mrad-1frequency. Therefore, the root mean square error of the tracking angular velocity is a reasonable parameter describing the tracking stability of the tracking imaging platform. 2017, Chinese Lasers Press. All right reserved.
Number of references:23
Main heading:Transfer functions
Controlled terms:Angular velocity - Errors - Imaging systems - Mean square error - Method of moments - Modulation - Optical transfer function - Spectroscopy
Uncontrolled terms:Analytical and numerical models - Image motion - Root mean square errors - Stabilized platform - Statistical moment methods - Statistical moments - Technical specifications - Uniform linear motions
Classification code:741.1 Light/Optics - 746 Imaging Techniques - 921 Mathematics - 922.2 Mathematical Statistics
Numerical data indexing:Percentage 1.00e+01%
DOI:10.3788/AOS201737.1211002
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<546>
Accession number:20181705054712
Title:Optimum structural design for collimation frame of space-based two-dimensional turntable
Authors:Zhang, Yongqiang (1, 2); Liu, Zhaohui (1); Li, Zhiguo (1); Xie, Youjin (1)
Author affiliation:(1) Xi'an Institute of Optics Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Source title:Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Abbreviated source title:Hongwai yu Jiguang Gongcheng Infrared Laser Eng.
Volume:46
Issue date:December 25, 2017
Publication year:2017
Article number:S113003
Language:Chinese
ISSN:10072276
Document type:Journal article (JA)
Publisher:Chinese Society of Astronautics
Abstract:Space-based two-dimensional turntable is the main load-bearing structure of space photoelectric detection equipment, and the collimation frame is the key support component of turntable, so its stiffness characteristics are vital for the performance of turntable. In order to decrease the mass and improve the stiffness performance, the structure of collimation frame was topologically optimized based on the variable density theory by finite element software -MSC. Patran/Nastran. Modal shape of collimation frame was regarded as the deformation of model under the thrust. The model was optimized with stiffness maximization as the objective function, the ratio of residual volume as the constraints. The results show that the model weight after optimization is lighten 1.32 kg and the first-order natural frequency increases 14.5 Hz compared with the model of experience design. The maximum deformation is relatively reduced by 22.4% and the maximum stress value is relatively reduced by 42.6% under the action of gravity in the Z direction and the statics characteristic of model are increased significantly in the other directions. The dynamic characteristics of the collimation frame are improved significantly with the weight reduction. Modal experiment was done for the optimization model and the results indicate that the finite element analysis is correct. Therefore, it is feasible to use the method of topology optimization to design the structure of collimation frame. 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
Number of references:13
Main heading:Finite element method
Controlled terms:Deformation - Shape optimization - Stiffness - Structural design - Structural optimization - Topology
Uncontrolled terms:Dynamic characteristics - Finite element software - First order natural frequency - Optimum structural design - Photoelectric detection - Sighting frame - Stiffness characteristics - Two-dimensional turntables
Classification code:408.1 Structural Design, General - 921 Mathematics - 951 Materials Science
Numerical data indexing:Frequency 1.45e+01Hz, Mass 1.32e+00kg, Percentage 2.24e+01%, Percentage 4.26e+01%
DOI:10.3788/IRLA201746.S113003
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<547>
Accession number:20170403284857
Title:Estimation of position and velocity for a low dynamic vehicle in near space using nonresolved photometric and astrometric data
Authors:Jing, Nan (1, 2); Li, Chuang (1); Chong, Yaqin (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Li, Chuang(lichuang@opt.ac.cn)
Source title:Applied Optics
Abbreviated source title:Appl. Opt.
Volume:56
Issue:3
Issue date:January 20, 2017
Publication year:2017
Pages:671-681
Language:English
ISSN:1559128X
E-ISSN:21553165
CODEN:APOPAI
Document type:Journal article (JA)
Publisher:OSA - The Optical Society
Abstract:An estimation method for indirectly observable parameters for a typical low dynamic vehicle (LDV) is presented. The estimation method utilizes apparent magnitude, azimuth angle, and elevation angle to estimate the position and velocity of a typical LDV, such as a high altitude balloon (HAB). In order to validate the accuracy of the estimated parameters gained from an unscented Kalman filter, two sets of experiments are carried out to obtain the nonresolved photometric and astrometric data. In the experiments, a HAB launch is planned; models of the HAB dynamics and kinematics and observation models are built to use as time update and measurement update functions, respectively. When the HAB is launched, a ground-based optoelectronic detector is used to capture the object images, which are processed using aperture photometry technology to obtain the time-varying apparent magnitude of the HAB. Two sets of actual and estimated parameters are given to clearly indicate the parameter differences. Two sets of errors between the actual and estimated parameters are also given to show how the estimated position and velocity differ with respect to the observation time. The similar distribution curve results from the two scenarios, which agree within 3σ, verify that nonresolved photometric and astrometric data can be used to estimate the indirectly observable state parameters (position and velocity) for a typical LDV. This technique can be applied to small and dim space objects in the future. 2017 Optical Society of America.
Number of references:33
Main heading:Parameter estimation
Controlled terms:Optoelectronic devices - Photometry - Velocity
Uncontrolled terms:Distribution curves - Estimated parameter - Estimation methods - High-altitude balloons - Measurement updates - Observable parameters - Observation model - Unscented Kalman Filter
Classification code:741.3 Optical Devices and Systems - 941.4 Optical Variables Measurements
DOI:10.1364/AO.56.000671
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<548>
Accession number:20172903945431
Title:Automatic identification of side branch and main vascular measurements in intravascular optical coherence tomography images
Authors:Cao, Yihui (1, 2, 3); Jin, Qinhua (4); Chen, Yundai (4); Yin, Qinye (2); Qin, Xianjing (5); Li, Jianan (1); Zhu, Rui (1); Zhao, Wei (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, China; (2) School of the Electronic and Information Engineering, Xi'An Jiaotong University, Xi'an, China; (3) University of Chinese Academy of Sciences, Beijing, China; (4) Department of Cardiology, Chinese PLA General Hospital, Beijing, China; (5) Department of Aerospace Biodynamics, Fourth Military Medical University, Xi'an, China
Source title:Proceedings - International Symposium on Biomedical Imaging
Abbreviated source title:IEEE Comput. Soc. Conf. Comput. Vis. Pattern Recogn.
Volume:0
Part number:1 of 1
Issue title:2017 IEEE 14th International Symposium on Biomedical Imaging, ISBI 2017
Issue date:June 15, 2017
Publication year:2017
Pages:608-611
Article number:7950594
Language:English
ISSN:19457928
E-ISSN:19458452
ISBN-13:9781509011711
Document type:Conference article (CA)
Conference name:14th IEEE International Symposium on Biomedical Imaging, ISBI 2017
Conference date:April 18, 2017 - April 21, 2017
Conference location:Melbourne, VIC, Australia
Conference code:128383
Publisher:IEEE Computer Society
Abstract:Automatic identification of side branch and main vascular measurements in IVOCT images take critical roles in pre-interventional decision making for coronary artery disease treatment. Very little works have been presented on these tasks. In this paper, we proposed a novel side branch identification algorithm which utilizes a newly defined global curvature feature to identify the ostium of side branch. Based on identification results, the main vascular can be segmented automatically for measurements. In the measurement of main vascular, the diameter of maximum inscribed circle of main vascular is proposed for the first time, which could be helpful in stent size decision. The qualitative and quantitative validation results demonstrated that the proposed algorithm is effective and accurate. 2017 IEEE.
Number of references:8
Main heading:Image processing
Controlled terms:Automation - Decision making - Diseases - Medical imaging - Optical tomography
Uncontrolled terms:Automatic identification - Coronary artery disease - Curvature features - Inscribed circles - Interventional - Intravascular - Quantitative validation - Side branches
Classification code:731 Automatic Control Principles and Applications - 741.3 Optical Devices and Systems - 746 Imaging Techniques - 912.2 Management
DOI:10.1109/ISBI.2017.7950594
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<549>
Accession number:20180104598285
Title:Characteristics of the spectral lines of immersion gratings
Authors:Tang, Qian (1, 2, 3); Guo, Li-Xin (1); Zhao, Bao-Chang (4)
Author affiliation:(1) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710071, China; (2) State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences, Xi'an; 710119, China; (3) Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen; 518060, China; (4) Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, The Space Optical Technology Research Department, Xi'an; 710119, China
Corresponding author:Guo, Li-Xin(lxguo@xidian.edu.cn)
Source title:Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves
Abbreviated source title:Hongwai Yu Haomibo Xuebao
Volume:36
Issue:5
Issue date:October 1, 2017
Publication year:2017
Pages:569-574
Language:English
ISSN:10019014
CODEN:HHXUEZ
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Immersion gratings are typically used in the infrared spectral band in which optical materials with high refractive index. Some issues inevitably arise due to their special operating mode. And they are critical to the application of immersion gratings. This study investigated the relations between the lengths of the long- and short-wave of normal gratings. For the features of the relevance of the refractive index with wavelength, the short-wave infrared spectral band (1.5~2.5 μm) was taken as an example to analyze the change characteristics of spectral line location and spectral resolution of immersion gratings. Results showed that when immersion gratings were adopted, significant differences were observed in the distribution of spectral lines as compared with normal gratings, and “trapezoidal” spectral lines tilted. For short-wave infrared spectral lines, the inclination of the “trapezoidal” spectral lines became more apparent due to larger changes in the refractive index of the medium. When Littrow conditions were registered with long-wave length (2.5 μm), the spectral line tilted toward the short-wave end. When registration was done with short-wave length (1.5 μm), the spectral line tilted toward the long-wave end, and the Littrow wavelength drifted away from the central wavelength. The refractive index had a few changes at the thermal infrared spectral band. The tilt of “trapezoidal” spectral lines was smaller and more similar to that of normal gratings. The spectral resolution of immersion gratings varied due to changes in the refractive index. At the same order, the wavelength increased, and resolution increased; between various orders, the order decreased, and the resolution decreased. Meanwhile, considering that the high-order resolution was larger than the low-order's, the ratio of the lengths of spectral lines at various orders no longer meet the relation of normal gratings. 2017, Science Press. All right reserved.
Number of references:12
Main heading:Refractive index
Controlled terms:Diffraction gratings - Infrared radiation - Spectral resolution - Spectroscopy - Water vapor
Uncontrolled terms:Central wavelength - Grating - High refractive index - Immersion - Immersion grating - Infrared spectral bands - Short wave infrared - Spectral line
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems
Numerical data indexing:Size 1.50e-06m, Size 1.50e-06m to 2.50e-06m, Size 2.50e-06m
DOI:10.11972/j.issn.1001-9014.2017.05.010
Funding details: Number: 61501361, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: LSIT201506, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: SKLST201509, Acronym: CAS, Sponsor: Chinese Academy of Sciences;
Funding text:Supported by (1) the National Natural Science Foundation of China (61501361); (2)State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences (SKLST201509); (3)Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province(GD201712); (4)Open Research Fund of Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences (LSIT201506) and (5)the Fundamental Research Funds for the Central Universities(JB160509).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<550>
Accession number:20173504105805
Title:An Efficient Contrast Enhancement Method for Remote Sensing Images
Authors:Liu, Jiahang (1, 2); Zhou, Chenghu (2); Chen, Peng (3); Kang, Chaomeng (1)
Author affiliation:(1) Laboratory of Remote Sensing and Intelligent Information System, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi'an; 710119, China; (2) Institute of Geographic Sciences and Natural Resource Research, Chinese Academy of Sciences, Beijing; 100101, China; (3) State Key Laboratory of Satellite Ocean Environment Dynamics, State Oceanic Administration, Hangzhou; 310012, China
Corresponding author:Liu, Jiahang(jhliu003@gmail.com)
Source title:IEEE Geoscience and Remote Sensing Letters
Abbreviated source title:IEEE Geosci. Remote Sens. Lett.
Volume:14
Issue:10
Issue date:October 2017
Publication year:2017
Pages:1715-1719
Article number:8008735
Language:English
ISSN:1545598X
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Remote sensing images often suffer low contrast. Although many contrast enhancement methods have been proposed in recent literature, the efficiency and robustness of remote sensing image contrast enhancement is still a challenge. In this letter, a novel self-adaptive histogram compacting transform-based contrast enhancement method for remote sensing images is presented to meet with the requirements of automation, robustness, and efficiency in applications. First, the histogram of an input image is optimized into compact and continuous status with the constraints of the merging cost, the moderate global brightness, and the entropy contribution of gray levels. Then, a local remapping algorithm is proposed to catch more details during the course of gray extending with the linear stretch. Finally, a dual-gamma transform is proposed to enhance the contrast in both bright and black areas. Experimental and comparison results demonstrate that the proposed method yields better results than the state-of-the-art methods and maintains robustness in different cases. It provides an effective approach for remote sensing image automatic contrast enhancement. 2017 IEEE.
Number of references:15
Main heading:Image enhancement
Controlled terms:Efficiency - Graphic methods - Image quality - Image segmentation - Mathematical transformations - Remote sensing
Uncontrolled terms:Contrast Enhancement - Effective approaches - Entropy contributions - histogram compacting transform (HCT) - Histogram modification - linear stretch (LS) - Remote sensing images - State-of-the-art methods
Classification code:913.1 Production Engineering - 921.3 Mathematical Transformations
DOI:10.1109/LGRS.2017.2730247
Funding details: Number: -, Acronym: CAS, Sponsor: Center for African Studies;Number: 710119, Acronym: -, Sponsor: -;Number: 2016YFF0103604, Acronym: -, Sponsor: -;Number: XAB2015A07, Acronym: CAS, Sponsor: Chinese Academy of Sciences;Number: jhliu003@gmail.com, Acronym: -, Sponsor: -;Number: 100101, Acronym: -, Sponsor: -;Number: -, Acronym: UWO, Sponsor: Western University;
Funding text:Manuscript received May 19, 2017; revised June 21, 2017; accepted July 8, 2017. Date of publication August 11, 2017; date of current version September 25, 2017. This work was supported in part by the National Key Research and Development Program under Grant 2016YFF0103604 and in part by the Western Young Scientist Program of the Chinese Academy of Sciences under Grant XAB2015A07. (Corresponding author: Jiahang Liu.) J. Liu is with the Laboratory of Remote Sensing and Intelligent Information System, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi’an 710119, China, and also with the Institute of Geographic Sciences and Natural Resource Research, CAS, Beijing 100101, China (e-mail: jhliu003@gmail.com).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<551>
Accession number:20180404675875
Title:On-line dynamic monitoring automotive exhausts: Using BP-ANN for distinguishing multi-components
Authors:Zhao, Yudi (1, 2); Wei, Ruyi (1, 2); Liu, Xuebin (1, 2)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Key Laboratory of Spectral Imaging Technology of Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100190, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10461
Part number:1 of 1
Issue title:AOPC 2017: Optical Spectroscopy and Imaging
Issue date:2017
Publication year:2017
Article number:104611A
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614031
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Optical Spectroscopy and Imaging, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133395
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:Remote sensing-Fourier Transform infrared spectroscopy (RS-FTIR) is one of the most important technologies in atmospheric pollutant monitoring. It is very appropriate for on-line dynamic remote sensing monitoring of air pollutants, especially for the automotive exhausts. However, their absorption spectra are often seriously overlapped in the atmospheric infrared window bands, i.e. MWIR (3～5μm). Artificial Neural Network (ANN) is an algorithm based on the theory of the biological neural network, which simplifies the partial differential equation with complex construction. For its preferable performance in nonlinear mapping and fitting, in this paper we utilize Back Propagation-Artificial Neural Network (BP-ANN) to quantitatively analyze the concentrations of four typical industrial automotive exhausts, including CO, NO, NO
Number of references:6
Main heading:Fourier transform infrared spectroscopy
Controlled terms:Backpropagation - Bioinformatics - Infrared radiation - Neural networks - Pollution detection - Remote sensing
Uncontrolled terms:Atmospheric pollutant monitoring - Automotive exhaust - Back-propagation artificial neural network - Biological neural networks - Complex construction - FTIR - Multi-component simulations - Remote sensing monitoring
Classification code:461.8.2 Bioinformatics - 723.4 Artificial Intelligence - 741.1 Light/Optics - 801 Chemistry
DOI:10.1117/12.2285325
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<552>
Accession number:20174904514012
Title:Person re-identification by multi-hypergraph fusion
Authors:An, Le (1); Chen, Xiaojing (2); Yang, Songfan (3); Li, Xuelong (4)
Author affiliation:(1) National Key Laboratory of Science and Technology on Multi-spectral Information Processing, School of Automation, Huazhong University of Science and Technology, Wuhan; 430074, China; (2) Department of Computer Science and Engineering, University of California, Riverside; CA; 92521, United States; (3) College of Electronics and Information Engineering, Sichuan University, Chengdu; 610064, China; (4) Chinese Academy of Sciences, Institute of Optics and Precision Mechanics, Xi'an; 710119, China
Corresponding author:Chen, Xiaojing(xchen010@ucr.edu)
Source title:IEEE Transactions on Neural Networks and Learning Systems
Abbreviated source title:IEEE Trans. Neural Networks Learn. Sys.
Volume:28
Issue:11
Issue date:November 2017
Publication year:2017
Pages:2763-2774
Article number:7560601
Language:English
ISSN:2162237X
E-ISSN:21622388
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Matching people across nonoverlapping cameras, also known as person re-identification, is an important and challenging research topic. Despite its great demand in many crucial applications such as surveillance, person re-identification is still far from being solved. Due to drastic view changes, even the same person may look quite dissimilar in different cameras. Illumination and pose variations further aggravate this discrepancy. To this end, various feature descriptors have been designed for improving the matching accuracy. Since different features encode information from different aspects, in this paper, we propose to effectively leverage multiple off-the-shelf features via multi-hypergraph fusion. A hypergraph captures not only pairwise but also high-order relationships among the subjects being matched. In addition, different from conventional approaches in which the matching is achieved by computing the pairwise distance or similarity between a probe and a gallery subject, the similarities between the probe and all gallery subjects are learned jointly via hypergraph optimization. Experiments on popular data sets demonstrate the effectiveness of the proposed method, and a superior performance is achieved as compared with the most recent state-of-the-arts. 2016 IEEE.
Number of references:72
Main heading:Cameras
Controlled terms:Probes - Space surveillance
Uncontrolled terms:Conventional approach - Feature descriptors - Feature fusion - Graph learning - Hypergraph - Non-overlapping cameras - Pairwise distances - Person re identifications
Classification code:656.2 Space Research - 742.2 Photographic Equipment
DOI:10.1109/TNNLS.2016.2602082
Funding details: Number: -, Acronym: TNLIST, Sponsor: Tsinghua National Laboratory for Information Science and Technology;Number: lan004@ucr.edu, Acronym: HUST, Sponsor: Huazhong University of Science and Technology;Number: 61602193, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 61501312, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: HUST 2016YXMS063, Acronym: -, Sponsor: -;
Funding text:Manuscript received October 30, 2015; revised May 12, 2016; accepted August 1, 2016. Date of publication September 5, 2016; date of current version October 16, 2017. This work was supported in part by the Fundamental Research Funds for the Central Universities under Grant HUST 2016YXMS063 and in part by the National Natural Science Foundation of China under Grant 61602193 and Grant 61501312. (Corresponding author: Xiaojing Chen.) L. An is with the National Key Laboratory of Science and Technology on Multi-spectral Information Processing, School of Automation, Huazhong University of Science and Technology, Wuhan 430074, China (e-mail: lan004@ucr.edu).
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<553>
Accession number:20180304653151
Title:Study of the characteristics about the digital holography with spherical and plane reference wave
Authors:Zhu, Meng (1, 2); Bai, Jianming (1); Xiao, Maosen (1)
Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Science, No.17, Xinxi Road, Xi'an; 710119, China; (2) Graduate School of University of Chinese Academy of Science, Jingjia Road, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10464
Part number:1 of 1
Issue title:AOPC 2017: Fiber Optic Sensing and Optical Communications
Issue date:2017
Publication year:2017
Article number:1046416
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614093
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Fiber Optic Sensing and Optical Communications, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133233
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:In order to design and optimize the optical system of digital holography, rebuild the object field with high quality, the characteristics of imaging system with spherical and plane reference wave are demonstrated respectively based on optical scalar diffraction theory. Based on the discrete Fresnel diffraction integral, recording and reconstruction of hologram with plane reference wave as well as the impact of CCD size and reconstructed distance on holographic imaging have been simulated with matlab. The simulation results show that: zero-order image and twin images are spatially separated when choosing the parameters of recording system properly; the quality of rebuild image suffers as CCD decreases in size and the reconstruction distance deviates from the recording distance. 2018 SPIE.
Number of references:11
Main heading:Optical fiber communication
Controlled terms:Charge coupled devices - Diffraction patterns - Fiber optics - Holograms - Image processing - Image recording - MATLAB - Optical systems - Recording instruments - Spheres
Uncontrolled terms:Digital holography - Fresnel diffraction integral - Recording systems - Reference waves - Twin-image - Zero-order image
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 717.1 Optical Communication Systems - 741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 743 Holography - 921 Mathematics
DOI:10.1117/12.2285037
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<554>
Accession number:20180304654859
Title:Space-based detection of space debris by photometric and polarimetric characteristics
Authors:Pang, Shuxia (1, 2); Wang, Hu (1); Lu, Xiaoyun (1, 2); Shen, Yang (1, 2); Pan, Yue (1, 2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China; (2) University of Chinese, Academy of Sciences, Beijing; 100049, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10463
Part number:1 of 1
Issue title:AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Issue date:2017
Publication year:2017
Article number:104631B
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510614079
Document type:Conference article (CA)
Conference name:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
Conference date:June 4, 2017 - June 6, 2017
Conference location:Beijing, China
Conference code:133232
Sponsor:Chinese Society for Optical Engineering; The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:The number of space debris has been increasing dramatically in the last few years, and is expected to increase as much in the future. As the orbital debris population grows, the risk of collision between debris and other orbital objects also grows. Therefore, space debris detection is a particularly important task for space environment security, and then supports for space debris modeling, protection and mitigation. This paper aims to review space debris detection systematically and completely. Firstly, the research status of space debris detection at home and abroad is presented. Then, three kinds of optical observation methods of space debris are summarized. Finally, we propose a space-based detection scheme for space debris by photometric and polarimetric characteristics. 2017 SPIE.
Number of references:36
Main heading:Space debris
Controlled terms:Earth (planet) - Orbits - Photometry - Polarimeters
Uncontrolled terms:Detection scheme - Optical observations - Photometric characteristics - Polarimetric characteristic - Research status - Space debris model - Space environment - Space-based
Classification code:656.1 Space Flight - 941.3 Optical Instruments - 941.4 Optical Variables Measurements
DOI:10.1117/12.2285141
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<555>
Accession number:20172103685882
Title:Complete indium-free CW 200W passively cooled high power diode laser array using double-side cooling technology
Authors:Wang, Jingwei (1); Zhu, Pengfei (1); Liu, Hui (2); Liang, Xuejie (1); Wu, Dihai (2); Liu, Yalong (1); Yu, Dongshan (1); Zah, Chung-En (1); Liu, Xingsheng (1, 2)
Author affiliation:(1) Focuslight Technologies Inc., 56 Zhangba 6th Road, High-Tech Zone, Xi'an, Shaanxi; 710077, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No. 17 Xinxi Road, New Industrial Park, Xi'an, Shaanxi; 710119, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10085
Part number:1 of 1
Issue title:Components and Packaging for Laser Systems III 2017
Issue date:2017
Publication year:2017
Article number:1008504
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510606111
Document type:Conference article (CA)
Conference name:Components and Packaging for Laser Systems III 2017
Conference date:January 31, 2017 - February 2, 2017
Conference location:San Francisco, CA, United states
Conference code:127684
Sponsor:The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher:SPIE
Abstract:High power diode lasers have been widely used in many fields. To meet the requirements of high power and high reliability, passively cooled single bar CS-packaged diode lasers must be robust to withstand thermal fatigue and operate long lifetime. In this work, a novel complete indium-free double-side cooling technology has been applied to package passively cooled high power diode lasers. Thermal behavior of hard solder CS-package diode lasers with different packaging structures was simulated and analyzed. Based on these results, the device structure and packaging process of double-side cooled CS-packaged diode lasers were optimized. A series of CW 200W 940nm high power diode lasers were developed and fabricated using hard solder bonding technology. The performance of the CW 200W 940nm high power diode lasers, such as output power, spectrum, thermal resistance, near field, far field, smile, lifetime, etc., is characterized and analyzed. 2017 SPIE.
Number of references:13
Main heading:Semiconductor lasers
Controlled terms:Cooling - Diodes - Indium - Laser beam welding - Packaging - Power semiconductor diodes - Reliability
Uncontrolled terms:Double sides - High power diode laser - High-power diode laser arrays - Indium-free - Packaging process - Packaging structure - passively cooled - Thermal behaviors
Classification code:549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 641.2 Heat Transfer - 694.1 Packaging, General - 744.4.1 Semiconductor Lasers - 744.9 Laser Applications
Numerical data indexing:Power 2.00e+02W, Size 9.40e-07m
DOI:10.1117/12.2253442
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<556>
Accession number:20172003665153
Title:Review of Optical Polarimetric Dehazing Technique
Authors:Liang, Jian (1, 2); Ju, Haijuan (1, 2); Zhang, Wenfei (1, 2); Ren, Liyong (1); Qu, Enshi (1)
Author affiliation:(1) Research Department of Information Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; Shaanxi; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Ren, Liyong(renliy@opt.ac.cn)
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:37
Issue:4
Issue date:April 10, 2017
Publication year:2017
Article number:0400001
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:Optical polarimetric imaging technique is a novel kind of optical imaging technique. The unique information is obtained by detecting the polarization characteristic of light, which is unavailable by other imaging techniques. Therefore, this technique can effectively enhance the detecting dimensions. In recent years, the optical polarimetric imaging technique is proved useful in the fields of clear imaging through haze or some other turbid media. Later, the optical polarimetric dehazing methods are developed rapidly as an independent branch, and many achievements are obtained so far. The principles, realization approaches and methods, developments and status quo are fully introduced. 2017, Chinese Lasers Press. All right reserved.
Number of references:59
Page count:13
Main heading:Polarimeters
Controlled terms:Demulsification - Image enhancement - Imaging systems - Turbidity
Uncontrolled terms:Dehazing - Imaging through turbid media - Optical imaging technique - Polarimetric imaging - Polarization characteristics - Realization approaches - Status quo - Turbid media
Classification code:741.1 Light/Optics - 746 Imaging Techniques - 802.3 Chemical Operations - 941.3 Optical Instruments
DOI:10.3788/AOS201737.0400001
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<557>
Accession number:20171403514732
Title:RESEARCH for gate drive technology based on image intensifier
Authors:Xu, Guangqiang (1, 3); Liu, Baiyu (1, 2); Gou, Yongsheng (1, 2)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, China; (2) Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an; 710071, China; (3) Graduate University of Chinese Academy of Sciences, Beijing; 100039, China
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10255
Part number:1 of 1
Issue title:Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016
Issue date:2017
Publication year:2017
Article number:1025507
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510610118
Document type:Conference article (CA)
Conference name:Chinese Society for Optical Engineering Conferences, CSOE 2016
Conference date:Nov. 2016
Conference location:Jinhua, Suzhou, Chengdu, Xi'an, And Wuxi, China
Conference code:126842
Sponsor:Chinese Academy of Engineering; Chinese Society for Optical Engineering; National Natural Science Foundation of China; Science and Technology on Low-light-level Night Vision Laboratory
Publisher:SPIE
Abstract:In order to improve the dynamic range and the signal-noise ratio of the image intensifier, keep the flux of the screen of image intensifier constant. In the article, introduced a design of the switching power supply and tested its performance. Firstly, used a sampling amplifier amplify the feedback current signals. The feedback signals were converted into square wave signals through a digital circuit. Then, using the MOSFET in the post stage circuit produced high voltage and high speed adjustable square pulses. The frequency of the pulse is 1 kHz, the speed of the cutting edge is 20ns and the amplitude is 200V. The photoelectron emission time of the photocathode is short when the width of the high speed pulse is narrow for strong illumination. On the contrary, the time is long when the width is wide for weak illumination. The number of photoelectron is a constant no matter what kind of the illumination. It keeps the flux reaching the phosphor screen constant. 2017 SPIE.
Number of references:7
Main heading:MOSFET devices
Controlled terms:Electric power supplies to apparatus - Feedback - Feedback amplifiers - Image enhancement - Image intensifiers (solid state) - Photocathodes - Photoelectrons - Photons
Uncontrolled terms:Gate drivers - High-speed pulse - MOS-FET - Number of photoelectrons - Photo-electron emission - Signal-noise ratio - Square wave signals - Switching power supplies
Classification code:713.1 Amplifiers - 714.1 Electron Tubes - 714.2 Semiconductor Devices and Integrated Circuits - 731.1 Control Systems - 931.3 Atomic and Molecular Physics
Numerical data indexing:Frequency 1.00e+03Hz, Time 2.00e-08s, Voltage 2.00e+02V
DOI:10.1117/12.2267602
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<558>
Accession number:20172003666459
Title:Multiwavelength erbium-doped fiber laser based on an all-fiber polarization interference filter
Authors:Wang, Hushan (1, 3); Yan, Zhijun (1, 2); Zhou, Kaiming (1); Song, Jiazheng (1); Feng, Ye (1); Wang, Yishan (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) School of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, Hubei; 430074, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Yan, Zhijun(yanzhijun@gmail.com)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:10323
Part number:1 of 1
Issue title:25th International Conference on Optical Fiber Sensors
Issue date:2017
Publication year:2017
Article number:1032367
Language:English
ISSN:0277786X
E-ISSN:1996756X
CODEN:PSISDG
ISBN-13:9781510610910
Document type:Conference article (CA)
Conference name:25th International Conference on Optical Fiber Sensors, OFS 2017
Conference date:April 24, 2017 - April 28, 2017
Conference location:Jeju, Korea, Republic of
Conference code:127522
Publisher:SPIE
Abstract:We demonstrated a compact stable room-temperature multiwavelength erbium doped fiber laser by employing a 45° tilted fiber gratings (TFGs) based all-fiber polarization interference filter. Benefiting from the filter, the channel number, the linewidth, the uniformity and stabilization of the multiwavelength laser were greatly improved. The filter also worked as a polarizing functional device in nonlinear polarization rotation leading to multiwavelength operation. More than 60 wavelengths (within 3dB bandwidth) lasing with a linewidth of 0.03nm and a signal-to-noise ratio of 31dB were obtained. The wavelength spacing was 0.164nm agreeing with the value of the filter and it can be flexibly controlled by adjusting the length of the filter. 2017 SPIE.
Number of references:12
Main heading:Polarization
Controlled terms:Bandpass filters - Erbium - Fiber lasers - Fiber optic sensors - Optical fibers - Ring lasers - Signal to noise ratio
Uncontrolled terms:Functional devices - Multi wavelength fiber laser - Multi-wavelength lasers - Multi-wavelength operation - Multiwavelength erbium-doped fiber lasers - Nonlinear polarization rotation - Polarization interferences - Tilted fiber gratings
Classification code:547.2 Rare Earth Metals - 703.2 Electric Filters - 716.1 Information Theory and Signal Processing - 741.1.2 Fiber Optics - 744 Lasers - 744.4 Solid State Lasers
Numerical data indexing:Decibel 3.00e+00dB, Decibel 3.10e+01dB, Size 1.64e-10m, Size 3.00e-11m
DOI:10.1117/12.2263392
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<559>
Accession number:20172003667282
Title:Collective Representation for Abnormal Event Detection
Authors:Ye, Renzhen (1, 2); Li, Xuelong (1)
Author affiliation:(1) Center for Optical Imagery Analysis and Learning (OPTIMAL), State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China; (2) School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an; 710119, China
Corresponding author:Ye, Renzhen(yerenzhen@mail.hzau.edu.cn)
Source title:Journal of Computer Science and Technology
Abbreviated source title:J Comput Sci Technol
Volume:32
Issue:3
Issue date:May 1, 2017
Publication year:2017
Pages:470-479
Language:English
ISSN:10009000
E-ISSN:18604749
CODEN:JCTEEM
Document type:Journal article (JA)
Publisher:Springer New York LLC
Abstract:Abnormal event detection in crowded scenes is a hot topic in computer vision and information retrieval community. In this paper, we study the problems of detecting anomalous behaviors within the video, and propose a robust collective representation with multi-feature descriptors for abnormal event detection. The proposed method represents different features in an identical representation, in which different features of the same topic will show more common properties. Then, we build the intrinsic relation between different feature descriptors and capture concept drift in the video sequence, which can robustly discriminate between abnormal events and normal events. Experimental results on two benchmark datasets and the comparison with the state-of-the-art methods validate the effectiveness of our method. 2017, Springer Science+Business Media New York.
Number of references:49
Main heading:Hardware
Controlled terms:Software engineering
Uncontrolled terms:Abnormal detection - Abnormal event detections - Anomalous behavior - collective representation - Dictionary learning - Feature descriptors - Intrinsic relation - State-of-the-art methods
Classification code:605 Small Tools and Hardware - 723.1 Computer Programming
DOI:10.1007/s11390-017-1737-8
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<560>
Accession number:20174304289370
Title:Study on the Polarization Spectral Image Dehazing
Authors:Xia, Pu (1, 2); Liu, Xue-Bin (1)
Author affiliation:(1) Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Corresponding author:Liu, Xue-Bin(lxb@opt.ac.cn)
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:37
Issue:8
Issue date:August 1, 2017
Publication year:2017
Pages:2331-2338
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press
Abstract:Air pollution has a serious effect on the quality of image, and image taking under hazy weather suffers from poor contrast and resolution. It is of great significance to use the polarimetric spectral information for image dehazing and the research of polarization dehazing for spectral data cube. The data used in this paper was pushbroomed under moderate hazy weather, and original Vis-NIR polarimetric data of 380~1 000 nm was captured, the original polarimetric images at 450, 550, 650, 750, 850 nm and the dehazed images were studied. The results of the research showed that wavelength had a significant effect on the difference of gray value between targets and background, and both the dynamic range of gray value and the smoothness of histogram were improved after the dehazing process. On average, the image contrast of the far-field targets increased by 5 times. The far-field targets at 450 nm had the lowest contrast, and the dehazing process increased the image contrast by 7.13 times which made the undetectable targets detectable. The far-field targets at 850 nm had the highest contrast, and the dehazing process increased the image contrast by 3.86 times. The dynamic range of histogram of the full image increased to 13.5% to 28.6% from 450 to 850 nm, the dynamic range of histogram of the near-field targets are increased to 33.3% to 44.0%. Based on the analyzation of the possible estimation error, two correction factors were proposed to revise the degree of polarization of the airlight and the intensity of the airlight from an object at an infinite distance, the regularity of the two factors were given to guide the image dehazing process under new conditions. The polarimetric information is obtained through the original data by the Stokes parameters, the dehazing process is based on the polarimetric difference between the air light scattered from the haze particles and the direct light reflected from the objects. The polarization spectral dehazing technique not only expands the application area of the imaging spectrometer, but also provides a new idea for image dehazing. 2017, Peking University Press. All right reserved.
Number of references:12
Main heading:Demulsification
Controlled terms:Aerosols - Graphic methods - Image processing - Polarimeters - Polarization - Spectrometers - Spectroscopy
Uncontrolled terms:Correction factors - Degree of polarization - Image dehazing - Imaging spectrometers - Polarimetric image - Polarimetric informations - Spectral information - Stokes parameters
Classification code:741.3 Optical Devices and Systems - 802.3 Chemical Operations - 941.3 Optical Instruments
Numerical data indexing:Percentage 1.35e+01% to 2.86e+01%, Percentage 3.33e+01% to 4.40e+01%, Size 3.80e-07m to 1.00e-06m, Size 4.50e-07m, Size 4.50e-07m to 8.50e-07m, Size 8.50e-07m
DOI:10.3964/j.issn.1000-0593(2017)08-2331-08
Database:Compendex
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
<561>
Accession number:5138743
Title:AID: A benchmark data set for performance evaluation of aerial scene classification
Authors:Xia, Gui-Song (1); Hu, Jingwen (1, 2); Hu, Fan (1, 2); Shi, Baoguang (3); Bai, Xiang (3); Zhong, Yanfei (1); Zhang, Liangpei (1); Lu, Xiaoqiang (4)
Author affiliation:(1) State Key Laboratory of Information Engineering, Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan; 430079, China; (2) Signal Processing Laboratory, School of Electronics Information, Wuhan University, Wuhan; 430072, China; (3) School of Electronics Information, Huazhong University of Science and Technology, Wuhan; 430074, China; (4) State Key Laboratory of Transient Optics and Photonics, Center for OPTical IMagery Analysis and Learning, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Corresponding author:Xia, Gui-Song(guisong.xia@whu.edu.cn)
Source title:IEEE Transactions on Geoscience and Remote Sensing
Abbreviated source title:IEEE Trans Geosci Remote Sens
Volume:55
Issue:7
Issue date:July 2017
Publication year:2017
Pages:3965-3981
Article number:7907303
Language:English
ISSN:01962892
CODEN:IGRSD2
Document type:Journal article (JA)
Publisher:Institute of Electrical and Electronics Engineers Inc.
Abstract:Aerial scene classification, which aims to automatically label an aerial image with a specific semantic category, is a fundamental problem for understanding high-resolution remote sensing imagery. In recent years, it has become an active task in the remote sensing area, and numerous algorithms have been proposed for this task, including many machine learning and data-driven approaches. However, the existing data sets for aerial scene classification, such as UC-Merced data set and WHU-RS19, contain relatively small sizes, and the results on them are already saturated. This largely limits the development of scene classification algorithms. This paper describes the Aerial Image data set (AID): a large-scale data set for aerial scene classification. The goal of AID is to advance the state of the arts in scene classification of remote sensing images. For creating AID, we collect and annotate more than 10000 aerial scene images. In addition, a comprehensive review of the existing aerial scene classification techniques as well as recent widely used deep learning methods is given. Finally, we provide a performance analysis of typical aerial scene classification and deep learning approaches on AID, which can be served as the baseline results on this benchmark. ？ 1980-2012 IEEE.
Number of references:100
Controlled terms:aerial survey - algorithm - automation - benchmarking - data set - image classification - machine learning - performance assessment - remote sensing
Classification code:71.8.5.4 Remote sensing: numerical and image analysis
DOI:10.1109/TGRS.2017.2685945
Funding details: Number: 41501462, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;Number: 91338113, Acronym: NSFC, Sponsor: National Natural Science Foundation of China;
Database:GEOBASE
Compilation and indexing terms, Copyright 2019 Elsevier Inc.
实时咨询 
陕公网安备 61019002000960号 陕ICP备05007611