2014
| Record 1 of 86 | |||||||||
| Title: Upgrading optical information of rotating mirror cameras | |||||||||
| Author(s): Li, JZ (Li, Jingzhen); Sun, FS (Sun, Fengshan); Huang, HB (Huang, Hongbin); Gong, XD (Gong, Xiangdong); Chen, HY (Chen, Hongyi); Lu, XW (Lu, Xiaowei); Cai, Y (Cai, Yi) | |||||||||
| Source: REVIEW OF SCIENTIFIC INSTRUMENTS Volume: 85 Issue: 11 Article Number: 113701 DOI: 10.1063/1.4900404 Published: NOV 2014 | |||||||||
| Abstract: To date, rotating mirror (RM) cameras still serve as indispensable imaging equipment for the diagnosis of microsecond transient processes due to their excellent characteristics. This paper, for upgrading the optical information capacity of the cameras, presents the new optical acceleration principle to increase the framing frequency or scanning velocity, the new design theory without principle errors instead of the classical theories with some flaws in principle to have applied to design our simultaneous streak and framing rotating mirror camera with continuous access, and the new rotating mirror with novel structure, made of an aluminum alloy, to have considerably reduced lateral deformation of the RM and improved the performance of the camera. (C) 2014 AIP Publishing LLC. | |||||||||
| Accession Number: WOS:000345646000263 | |||||||||
| PubMed ID: 25430114 | |||||||||
| Conference Title: 20th Topical Conference on High-Temperature Plasma Diagnostics | |||||||||
| Conference Date: JUN 01-05, 2014 | |||||||||
| Conference Location: Atlanta, GA | |||||||||
| Author Identifiers: | |||||||||
| |||||||||
| ISSN: 0034-6748 | |||||||||
| eISSN: 1089-7623 |
| Record 2 of 86 | |||||||||||||||
| Title: Visual measurement of the pulse laser ablation process on liquid surface by using digital holography | |||||||||||||||
| Author(s): Wang, J (Wang, J.); Zhao, JL (Zhao, J. L.); Di, JL (Di, J. L.); Rauf, A (Rauf, A.); Yang, WZ (Yang, W. Z.); Wang, XL (Wang, X. L.) | |||||||||||||||
| Source: JOURNAL OF APPLIED PHYSICS Volume: 115 Issue: 17 Article Number: 173106 DOI: 10.1063/1.4874742 Published: MAY 7 2014 | |||||||||||||||
| Abstract: We present a visual method to dynamically and quantitatively measure the ablation process on liquid surface induced by pulse laser based on digital holography. Taking deionized water as a liquid example, the quantitative data of the evolution of cavity, jet, and pressure in ablation process are experimentally obtained. According to Abel inversion, the refractive index and the thickness contained in the phase information of the axisymmetric jet are decoupled. The temporal resolution, temporal stability, and measurement accuracy of this method are analyzed based on digital holographic theory. In addition, a numerical simulation is performed to calculate the maximum cavity depth, and the results are in good agreement with the experimental data. (C) 2014 AIP Publishing LLC. | |||||||||||||||
| Accession Number: WOS:000335643700592 | |||||||||||||||
| Conference Title: 58th Annual Conference on Magnetism and Magnetic Materials | |||||||||||||||
| Conference Date: NOV 04-08, 2013 | |||||||||||||||
| Conference Location: Denver, CO | |||||||||||||||
| Author Identifiers: | |||||||||||||||
| |||||||||||||||
| ISSN: 0021-8979 | |||||||||||||||
| eISSN: 1089-7550 |
| Record 3 of 86 | ||||||
| Title: Research of using the modified calcium complements CO<sub>2</sub> in cement industry flue gas | ||||||
| Author(s): Li, JF (Li, Jiangfeng); Meng, BL (Meng, Binglu); Liu, YD (Liu, Yidong); Yu, YH (Yu, Youhai); Min, Y (Min, Yong) | ||||||
| Source: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY Meeting Abstract: 88-IEC Volume: 247 Published: MAR 16 2014 | ||||||
| Accession Number: WOS:000348457601057 | ||||||
| Conference Title: 247th National Spring Meeting of the American-Chemical-Society (ACS) | ||||||
| Conference Date: MAR 16-20, 2014 | ||||||
| Conference Location: Dallas, TX | ||||||
| Conference Sponsors: Amer Chem Soc | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0065-7727 |
| Record 4 of 86 | |||||||||
| Title: Functionalized polyaniline based membranes for water purification | |||||||||
| Author(s): Min, Y (Min, Yong); Yu, YH (Yu, Youhai); Wang, DW (Wang, Dewei); Fan, TJ (Fan, Tianju); Kinstedt, K (Kinstedt, Katie); Walker, HW (Walker, Harold W.); Liu, YD (Liu, Yidong) | |||||||||
| Source: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY Meeting Abstract: 256-PMSE Volume: 247 Published: MAR 16 2014 | |||||||||
| Accession Number: WOS:000348457604235 | |||||||||
| Conference Title: 247th National Spring Meeting of the American-Chemical-Society (ACS) | |||||||||
| Conference Date: MAR 16-20, 2014 | |||||||||
| Conference Location: Dallas, TX | |||||||||
| Conference Sponsors: Amer Chem Soc | |||||||||
| Author Identifiers: | |||||||||
| |||||||||
| ISSN: 0065-7727 |
| Record 5 of 86 |
| Title: Novel ordered mesostructured silica - carbon nanocomposites: Facial synthesis and catalytical application |
| Author(s): Peng, L (Peng, Li); Yu, YH (Yu, Youhai); Min, YG (Min, Yonggang) |
| Source: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY Meeting Abstract: 152-CATL Volume: 247 Published: MAR 16 2014 |
| Accession Number: WOS:000348455201357 |
| Conference Title: 247th National Spring Meeting of the American-Chemical-Society (ACS) |
| Conference Date: MAR 16-20, 2014 |
| Conference Location: Dallas, TX |
| Conference Sponsors: Amer Chem Soc |
| ISSN: 0065-7727 |
| Record 6 of 86 |
| Title: Low-cost flexible carbon counter electrode for monolithic dye sensitized solar cell |
| Author(s): Yu, YH (Yu, Youhai); Peng, L (Peng, Li); Wang, DW (Wang, Dewei); Min, YG (Min, Yonggang) |
| Source: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY Meeting Abstract: 447-ENFL Volume: 247 Published: MAR 16 2014 |
| Accession Number: WOS:000348457600180 |
| Conference Title: 247th National Spring Meeting of the American-Chemical-Society (ACS) |
| Conference Date: MAR 16-20, 2014 |
| Conference Location: Dallas, TX |
| Conference Sponsors: Amer Chem Soc |
| ISSN: 0065-7727 |
| Record 7 of 86 | ||||||
| Title: Dynamics Analysis on Adhesive Bonds of Tilt Mirror | ||||||
| Author(s): Cao, S (Cao Shang); Ruan, P (Ruan Ping); Wang, C (Wang Chao); Xu, GZ (Xu Guangzhou) | ||||||
| Edited by: Jiang W; Cho MK; Wu F | ||||||
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES Book Series: Proceedings of SPIE Volume: 9280 Article Number: 92800W DOI: 10.1117/12.2068441 Published: 2014 | ||||||
| Abstract: Adhesive bonding technology has been widely applied in the field of space remote sensing. In order to make the adhesive bonds connecting the mirror and the fixed structures in a satellite launch or operation of dynamic environment without damage, the finite element model of the tilt mirror is essential to be established for dynamic analysis, as well as the experimental verification. There are detailed model and the equivalent stiffness model on the adhesive bonds. The modal, frequency response, random vibration and shock response are analyzed through the detailed model of the bonds. The stress of the three point mirror bonds is compared with the six point support mirror. The mechanics experiment is carried out based on the dynamics analysis. The results of calculation demonstrates that the impact of frequency response and random vibration on adhesive bonds is relatively little, while the impact of the shock response is large. The experimental verification shows that the stress of bonds with three points support mirror under shock response exceeds the shear strength, which leads to the separation of the mirror and the fixed structure and the improved six point support mirror is satisfied to the requirements. The dynamics analysis on adhesive bonds of tilt mirror makes sense for designing, assembling and mechanics experiment. | ||||||
| Accession Number: WOS:000344602300031 | ||||||
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Large Mirrors and Telescopes | ||||||
| Conference Date: APR 26-29, 2014 | ||||||
| Conference Location: Harbin, PEOPLES R CHINA | ||||||
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0277-786X | ||||||
| ISBN: 978-1-62841-355-7 |
| Record 8 of 86 | |||||||||||||||||||||||||||||||||
| Title: CMOS Compatible Nonlinear Optics Based on Hydex | |||||||||||||||||||||||||||||||||
| Author(s): Caspani, L (Caspani, Lucia); Pasquazi, A (Pasquazi, Alessia); Peccianti, M (Peccianti, Marco); Reimer, C (Reimer, Christian); Clerici, M (Clerici, Matteo); Ferrera, M (Ferrera, Marcello); Razzari, L (Razzari, Luca); Duchesne, D (Duchesne, David); Little, BE (Little, Brent E.); Chu, ST (Chu, Sai T.); Moss, DJ (Moss, David J.); Morandotti, R (Morandotti, R.) | |||||||||||||||||||||||||||||||||
| Book Group Author(s): IEEE | |||||||||||||||||||||||||||||||||
| Source: 2014 OPTOELECTRONICS AND COMMUNICATIONS CONFERENCE AND AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY (OECC/ACOFT 2014) Pages: 398-400 Published: 2014 | |||||||||||||||||||||||||||||||||
| Abstract: We review our work on ultrafast laser sources and frequency generation in high-index doped silica (Hydex (R)) integrated structures. | |||||||||||||||||||||||||||||||||
| Accession Number: WOS:000347188900151 | |||||||||||||||||||||||||||||||||
| Conference Title: 19th OptoElectronics and Communication Conference (OECC) / 39th Australian Conference on Optical Fibre Technology (ACOFT) | |||||||||||||||||||||||||||||||||
| Conference Date: JUL 06-10, 2014 | |||||||||||||||||||||||||||||||||
| Conference Location: Engineers Australia, Melbourne, AUSTRALIA | |||||||||||||||||||||||||||||||||
| Conference Sponsors: Australian Opt Soc, Univ Melbourne, Melbourne Sch Engn, NICTA, CUDOS, Inst Photon & Adv Sensing, Macquarie Univ, MQ Photon Res Ctr, Discovery Semicond Inc, IEEE Photon Soc, Opt Soc Korea, IEICE Commun Soc, EIC, Alnair Labs, Opt Soc | |||||||||||||||||||||||||||||||||
| Conference Host: Engineers Australia | |||||||||||||||||||||||||||||||||
| Author Identifiers: | |||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||
| ISBN: 978-1-922107-21-3 |
| Record 9 of 86 | ||||||
| Title: A test system for infrared focal plane arrays based on LabVIEW | ||||||
| Author(s): Chen, YH (Chen Yaohong); Liu, W (Liu Wei); Ren, L (Ren Long); Yi, B (Yi Bo); Xie, QS (Xie Qingsheng); Wang, ZF (Wang Zefeng) | ||||||
| Edited by: Li JB | ||||||
| Source: 2014 FOURTH INTERNATIONAL CONFERENCE ON INSTRUMENTATION AND MEASUREMENT, COMPUTER, COMMUNICATION AND CONTROL (IMCCC) Book Series: International Conference on Instrumentation Measurement Computer Communication and Control Pages: 974-977 DOI: 10.1109/IMCCC.2014.205 Published: 2014 | ||||||
| Abstract: Most existing test system for infrared focal plane arrays are dedicated, it costly and the application value are limited. A test method for infrared focal plane arrays is introduced in this paper, and test system includes driving circuit, control module, data acquiring and processing circuit, video synthesis module and the PC software based on LabVIEW is established, which measures the key parameters such as responsivity, NETD, non-effective pixels and nonhomogeneity of the conventional polysilicon uncooled infrared focal plane arrays, generate testing report automatically at last. The simple and reliable test system adapted to many devices with different resolution and package, possess excellent universal property and practical value at very low cost. | ||||||
| Accession Number: WOS:000365532300198 | ||||||
| Conference Title: 4th International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) | ||||||
| Conference Date: SEP 18-20, 2014 | ||||||
| Conference Location: Harbin Inst Technol, Harbin, PEOPLES R CHINA | ||||||
| Conference Sponsors: IEEE Comp Soc, IEEE Harbin Sect | ||||||
| Conference Host: Harbin Inst Technol | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 2373-6844 | ||||||
| ISBN: 978-1-4799-6575-5 |
| Record 10 of 86 | ||||||
| Title: An Improvement of Embedded Zerotree Wavelet Coding Based on Compressed Sensing | ||||||
| Author(s): Chen, Z (Chen, Zhi); Mu, CH (Mu, Chenhao); Xu, F (Xu, Fan) | ||||||
| Book Group Author(s): IEEE | ||||||
| Edited by: Babu SP; Wenzheng L; Tsui E | ||||||
| Source: 2014 5TH IEEE INTERNATIONAL CONFERENCE ON SOFTWARE ENGINEERING AND SERVICE SCIENCE (ICSESS) Pages: 1177-1180 Published: 2014 | ||||||
| Abstract: Embedded zero-tree wavelet (EZW) is a kind of image compression algorithm which provides high compression rates fast. In order to improve the quality of reconstructed image after decoding, in this research, we put forward an improvement of embedded zerotree wavelet coding and simulate this new algorithm. This method takes full advantages of the Compressed Sensing (CS) theory and EZW. Simulation results demonstrated that the proposed method improved the quality of the unzipped image significantly. | ||||||
| Accession Number: WOS:000355926400275 | ||||||
| Conference Title: 5th IEEE International Conference on Software Engineering and Service Science (ICSESS) | ||||||
| Conference Date: JUN 27-29, 2014 | ||||||
| Conference Location: Beijing, PEOPLES R CHINA | ||||||
| Conference Sponsors: IEEE | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISBN: 978-1-4799-3279-5 |
| Record 11 of 86 | ||||||
| Title: Noise model and simulation analysis of the low noise Pre-amplifier of CCD camera | ||||||
| Author(s): Chen, Z (Chen Zhi); Qiu, YH (Qiu Yuehong); Wen, Y (Wen Yan); Jiang, BT (Jiang Baotan); Yao, DL (Yao Dalei) | ||||||
| Edited by: OjedaCastaneda J; Han S; Jia P; Fang J; Fan D; Qian L; Gu Y; Yan X | ||||||
| Source: SELECTED PAPERS FROM CONFERENCES OF THE PHOTOELECTRONIC TECHNOLOGY COMMITTEE OF THE CHINESE SOCIETY OF ASTRONAUTICS: OPTICAL IMAGING, REMOTE SENSING, AND LASER-MATTER INTERACTION 2013 Book Series: Proceedings of SPIE Volume: 9142 Article Number: 91420M DOI: 10.1117/12.2054240 Published: 2014 | ||||||
| Abstract: The low noise video process chain design is the important guarantee of realization of CCD detection performance. While pre-amplifier locate in the front end of the video signal process of CCD camera, so the low noise preamplifier design is the important guarantee of realization of low noise CCD camera. Firstly, calculate the bandwidth and equivalent noise bandwidth of video process chain of CCD camera. Secondly, design the preamplifier circuit and build the noise model of the preamplifier. Thirdly, according to the noise model calculation the noise of the pre-amplifier. Lastly, build the noise simulation model of the preamplifier. Through theoretical calculation and PSPICE simulation result predict the noise level of the preamplifier of the CCD. The noise level of the preamplifier less than 2 electronics, it meets specification requirement. | ||||||
| Accession Number: WOS:000334347800021 | ||||||
| Conference Title: International Conference on Frontiers in Optical Imaging Technology and Application | ||||||
| Conference Date: OCT 20-29, 2013 | ||||||
| Conference Location: Suzhou, PEOPLES R CHINA | ||||||
| Conference Sponsors: Chinese Soc Astronaut, Photoelectron Technol Profess Comm, China Ordnance Soc, Educ & Training Dept | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0277-786X | ||||||
| ISBN: 978-1-62841-093-8 |
| Record 12 of 86 |
| Title: Distributed Real-time Networked Control Architecture for Suppressing Wind Load Deformation of Fourier Telescope |
| Author(s): Cheng, ZY (Cheng, Zhiyuan); Ma, CW (Ma, Caiwen) |
| Book Group Author(s): IEEE |
| Source: 2014 SIXTH INTERNATIONAL CONFERENCE ON INTELLIGENT HUMAN-MACHINE SYSTEMS AND CYBERNETICS (IHMSC), VOL 2 Book Series: International Conference on Intelligent Human-Machine Systems and Cybernetics Pages: 364-367 DOI: 10.1109/IHMSC.2014.189 Published: 2014 |
| Abstract: To advance optical profile accuracy of high-resolution imaging Fourier telescope and improve the real-time of profile error suppressing, the paper proposed a novel real-time networked control scheme integrated EtherCAT(Ethernet for control Automation Technology) field bus with PC-based control model. Based on the high speed transmission principle of EtherCAT field bus it improves the real-time of surface error suppressing induced by wind load and meets the requirements of high resolution imaging; Then it makes good use of powerful clustering control, the open architecture of PC controller to solve cluster control problem of mass distributed drivers in large telescope. The results show that EtherCAT networked control solution has advantages of highest real-time, flexible network control structure, powerful clustering control ability. It can meet the real-time requirement of profile error suppressing caused by wind load in Large Fourier telescope. |
| Accession Number: WOS:000366558300086 |
| Conference Title: 6th International Conference on Intelligent Human-Machine Systems and Cybernetics (IHMSC) |
| Conference Date: AUG 26-27, 2014 |
| Conference Location: Hangzhou, PEOPLES R CHINA |
| Conference Sponsors: Zhejiang Univ, Univ Bristol, Beihang Univ, Japan Adv Inst Sci & Technol, IEEE CIS Nanjing Chapter, Zhejiang Provincial Nat Sci Fdn China, IEEE Comp Soc |
| ISSN: 2157-8982 |
| ISBN: 978-1-4799-4955-7 |
| Record 13 of 86 | |||||||||||||||||||||
| Title: HYPERSPECTRAL BIOLOGICAL IMAGES COMPRESSION BASED ON MULTIWAY TENSOR PROJECTION | |||||||||||||||||||||
| Author(s): Du, B (Du, Bo); Zhang, MF (Zhang, Mengfei); Zhang, LF (Zhang, Lefei); Li, XL (Li, Xuelong) | |||||||||||||||||||||
| Book Group Author(s): IEEE | |||||||||||||||||||||
| Source: 2014 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO (ICME) Book Series: IEEE International Conference on Multimedia and Expo Published: 2014 | |||||||||||||||||||||
| Abstract: Since the hyperspectral images (HSI) could provide much more useful discriminative information that cannot be obtained by the conventional imaging techniques, the hyperspectral imaging technology was widely used in remote sensing area and recently used in many other aspects, such as the biological images recognition. However, most of the time, the size of hyperspectral data is so large that to process these data is both time-consuming and space-consuming. In this paper, a multiway tensor projection (MTP) algorithm is proposed as an extension to the conventional PCA for hyperspectral data compression and reconstruction. Technologically speaking, MTP carries out a tensor data compression in all the modes simultaneously to seek a projection matrix along each order to make sure that the projected core tensor can preserve most of the information present in the original tensor. Since the MTP algorithm uses the arbitrary order tensor as the input, it can preserve the structure information not only among the rows and columns but also among the spectral channels as much as possible and without vectorization. Numerous experiments on hyperspectral biological databases show that the MTP algorithm has better compression performance than PCA in many aspects. | |||||||||||||||||||||
| Accession Number: WOS:000360831800128 | |||||||||||||||||||||
| Conference Title: IEEE International Conference on Multimedia and Expo Workshops (ICMEW) | |||||||||||||||||||||
| Conference Date: JUL 14-18, 2014 | |||||||||||||||||||||
| Conference Location: Chengdu, PEOPLES R CHINA | |||||||||||||||||||||
| Conference Sponsors: IEEE, Baidu, NSFC, NSF, QIY, BOCOM, Yahoo, IBM Res, RICOH, Microsoft Res | |||||||||||||||||||||
| Author Identifiers: | |||||||||||||||||||||
| |||||||||||||||||||||
| ISSN: 1945-7871 | |||||||||||||||||||||
| ISBN: 978-1-4799-4761-4 |
| Record 14 of 86 |
| Title: Optimization of PID Parameters Based on Improved Particle-Swarm-Optimization |
| Author(s): Fan, XM (Fan, Xinming); Cao, JZ (Cao, Jianzhong); Yang, HT (Yang, Hongtao); Dong, XK (Dong, Xiaokun); Liu, C (Liu, Chen); Gong, ZD (Gong, Zhendong); Wu, QQ (Wu, Qingquan) |
| Book Group Author(s): IEEE |
| Source: PROCEEDINGS OF 2013 INTERNATIONAL CONFERENCE ON INFORMATION SCIENCE AND CLOUD COMPUTING COMPANION (ISCC-C) Pages: 393-397 DOI: 10.1109/ISCC-C.2013.99 Published: 2014 |
| Abstract: Because the PID parameter settings obtained by classical method fail to achieve the best control performances, this paper proposes an improved particle swarm optimization (IPSO) algorithm with non-linear inertial weight changes and border buffer. Unlike the original PSO, the inertial weight changes instead of linearly. In addition, we provide a border buffer to the slopping-over particles, making them to fall in the explored space of optima to enhance the diversity of the particle swarm. The simulation experiments show that the system whose parameters are optimized by IPSO has better performances. Meanwhile, it proves the effectiveness of the improved particle swarm optimization. |
| Accession Number: WOS:000393054200065 |
| Conference Title: International Conference on Information Science and Cloud Computing Companion (ISCC-C) |
| Conference Date: DEC 07-08, 2013 |
| Conference Location: Guangzhou, PEOPLES R CHINA |
| Conference Sponsors: IEEE Reliabil Soc, IEEE Comp Soc, IEEE, Guangzhou Univ |
| ISBN: 978-1-4799-5245-8 |
| Record 15 of 86 | ||||||
| Title: The pulsed all fiber laser application in the high-resolution 3D imaging LIDAR system | ||||||
| Author(s): Gao, CX (Gao, Cunxiao); Zhu, SL (Zhu, Shaolan); Niu, LQ (Niu, Linquan); Feng, L (Feng, Li); He, HD (He, Haodong); Cao, ZY (Cao, Zongying) | ||||||
| Edited by: Mackenzie JI; Jelinkova H; Taira T; Ahmed MA | ||||||
| Source: LASER SOURCES AND APPLICATIONS II Book Series: Proceedings of SPIE Volume: 9135 Article Number: 91351M DOI: 10.1117/12.2048275 Published: 2014 | ||||||
| Abstract: An all fiber laser with master-oscillator-power-amplifier (MOPA) configuration at 1064nm/1550nm for the high-resolution three-dimensional (3D) imaging light detection and ranging (LIDAR) system was reported. The pulsewidth and the repetition frequency could be arbitrarily tuned 1ns similar to 10ns and 10KHz similar to 1MHz, and the peak power exceeded 100kW could be obtained with the laser. Using this all fiber laser in the high-resolution 3D imaging LIDAR system, the image resolution of 1024x1024 and the distance precision of +/- 1.5 cm was obtained at the imaging distance of 1km. | ||||||
| Accession Number: WOS:000339372300044 | ||||||
| Conference Title: Conference on Laser Sources and Applications II | ||||||
| Conference Date: APR 14-17, 2014 | ||||||
| Conference Location: Brussels, BELGIUM | ||||||
| Conference Sponsors: SPIE, Brussels Photon Team, Fonds Wetenschappelijk Onderzoek | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0277-786X | ||||||
| ISBN: 978-1-62841-083-9 |
| Record 16 of 86 | |||||||||
| Title: A New Destriping Method Combining Moment Matching and Interpolation in Infrared Images | |||||||||
| Author(s): Gong, ZD (Gong, Zhendong); Leng, HB (Leng, Hanbing); Cao, JZ (Cao, Jianzhong); Wang, JH (Wang, Jihong); Wu, QQ (Wu, Qingquan); Fan, XM (Fan, Xinming); Zhao, B (Zhao, Bing); Yang, L (Yang, Lei); Liao, JW (Liao, Jiawen) | |||||||||
| Edited by: Xu G; Qiao Y; Wu X | |||||||||
| Source: 2014 4TH IEEE INTERNATIONAL CONFERENCE ON INFORMATION SCIENCE AND TECHNOLOGY (ICIST) Book Series: International Conference on Information Science and Technology Pages: 410-413 Published: 2014 | |||||||||
| Abstract: Stripe noise is very common in uncooled infrared imaging systems and often severely degrades the image quality. Based on the analysis of existing methods, a new destriping method combining moment matching and interpolation was proposed. The method mainly consisted of three steps: Firstly, moment matching was used to eliminate most stripes. Then an adaptive algorithm was used to classify the left stripes into three types: one-pixel-width stripes, two-pixel-width stripes and local stripes. Finally, these left stripes were identified and removed with weighted multi-neighborhood interpolation. The algorithm was tested with IR images heavily polluted by stripe noises, and the result indicated that it could efficiently remove stripe noise and enhance the image quality significantly better than the single method discussed in literature. | |||||||||
| Accession Number: WOS:000364968700097 | |||||||||
| Conference Title: 4th IEEE International Conference on Information Science and Technology (ICIST) | |||||||||
| Conference Date: APR 26-28, 2014 | |||||||||
| Conference Location: Shenzhen, PEOPLES R CHINA | |||||||||
| Conference Sponsors: IEEE, IEEE Beijing Sect, Chinese Acad Sci, Shenzhen Inst Adv Technol, Chinese Univ Hong Kong, Chinese Acad Engn, Tongji University | |||||||||
| Author Identifiers: | |||||||||
| |||||||||
| ISSN: 2164-4357 | |||||||||
| ISBN: 978-1-4799-4808-6 |
| Record 17 of 86 | ||||||||||||
| Title: Infrared emission properties of Dy<SUP>3+</SUP>-doped and Dy<SUP>3+</SUP>,Tm<SUP>3+</SUP>-codoped chalcohalide glasses | ||||||||||||
| Author(s): Gu, SX (Gu Shaoxuan); Pi, DX (Pi Daoxian); Tao, HZ (Tao Haizheng); Zeng, Q (Zeng Qi); Zhao, XJ (Zhao Xiujian); Guo, HT (Guo Haitao); Chen, HY (Chen Hongyan) | ||||||||||||
| Source: JOURNAL OF NON-CRYSTALLINE SOLIDS Volume: 383 Special Issue: SI Pages: 205-208 DOI: 10.1016/j.jnoncrysol.2013.05.041 Published: JAN 1 2014 | ||||||||||||
| Abstract: Series of 76GeS(2).19Ga(2)S(3).5AgCl (GGA) chalcohalide glasses doped with or codoped with Dy3+, Tm3+ were prepared in this work. Systematical detection of absorption and emission spectra in the near-infrared and mid-infrared region was conducted. For the Dy3+ sole-doped GGA chalcohalide glasses, mainly due to the relatively low efficiency of pumping absorption and poor radiative transition probabilities of mid-infrared emissions, the mid-infrared emissions were hardly to be detected. Through the codoping of Tm3+ with high concentration, several intrinsical processes including the enhancement of pumping absorptive efficiency at 808 nm, cross relaxation process of Tm3+: H-3(4) + E-3(6) -> F-3(4) + F-3(4) and energy transfer process of Tm3+:F-3(4) -> Dy3+:H-6(11/2) are carried out, therefore relatively strong mid-infrared emissions at about 2900 and 4300 nm have been clearly observed. (C) 2013 Elsevier B.V. All rights reserved. | ||||||||||||
| Accession Number: WOS:000330819000043 | ||||||||||||
| Conference Title: 13th International Conference on the Physics of Non-Crystalline Solids (PNCS) | ||||||||||||
| Conference Date: SEP 16-20, 2012 | ||||||||||||
| Conference Location: Yichang, PEOPLES R CHINA | ||||||||||||
| Conference Sponsors: Hubei Sanxia New Bldg Mat Co Ltd, China Three Gorges Univ, Hubei Feilihua Quartz Glass Co Ltd, Jiansu Xiuqiang Glasswork Co Ltd, FiberHome Technologies Grp, Hubei New Huaguang Informat Mat Co Ltd, Yangtze Opt Fiber & Cable Co Ltd, AVIC Special Glass Mat Co Ltd, Hainan Univ | ||||||||||||
| Author Identifiers: | ||||||||||||
| ||||||||||||
| ISSN: 0022-3093 | ||||||||||||
| eISSN: 1873-4812 |
| Record 18 of 86 | ||||||||||||||||||
| Title: LEARNING TO DETECT STEREO SALIENCY | ||||||||||||||||||
| Author(s): Guo, F (Guo, Fang); Shen, JB (Shen, Jianbing); Li, XL (Li, Xuelong) | ||||||||||||||||||
| Book Group Author(s): IEEE | ||||||||||||||||||
| Source: 2014 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO (ICME) Book Series: IEEE International Conference on Multimedia and Expo Published: 2014 | ||||||||||||||||||
| Abstract: This paper develops a novel learning-based method for detecting stereo saliency in stereopair images. The disparity maps computed from stereopair images provide an additional depth cue for stereo saliency detection. To the best of our knowledge, our approach is the first one to simultaneously detect the stereo saliency of both left and right images using support vector machine (SVM). In our work, the disparity maps are used in two aspects. One is to improve the performance of saliency detection for monocular image. The other one is to maintain the consistency between the stereo matching and saliency maps. In order to meet the above requirements, we propose a new combinational saliency feature to train the stereo images with the labeled saliency ground truth, using support vector machine as the classifier. In the test stage, our approach generates the stereo saliency results according to the trained SVM model. Furthermore, a stereopair saliency dataset containing 400 pairs of images is created to perform the challenging experiments. The experimental results have demonstrated that our method achieves better performance than the state-of-the-art algorithms of single-image saliency detection. | ||||||||||||||||||
| Accession Number: WOS:000360831800197 | ||||||||||||||||||
| Conference Title: IEEE International Conference on Multimedia and Expo Workshops (ICMEW) | ||||||||||||||||||
| Conference Date: JUL 14-18, 2014 | ||||||||||||||||||
| Conference Location: Chengdu, PEOPLES R CHINA | ||||||||||||||||||
| Conference Sponsors: IEEE, Baidu, NSFC, NSF, QIY, BOCOM, Yahoo, IBM Res, RICOH, Microsoft Res | ||||||||||||||||||
| Author Identifiers: | ||||||||||||||||||
| ||||||||||||||||||
| ISSN: 1945-7871 | ||||||||||||||||||
| ISBN: 978-1-4799-4761-4 |
| Record 19 of 86 | ||||||||||||
| Title: Automatic White Balance Algorithm of Airborne Camera | ||||||||||||
| Author(s): Guo, HN (Guo, Huinan); Liu, Q (Liu, Qing); Yang, L (Yang, Lei); Wang, H (Wang, Hua); Zhao, XD (Zhao, Xiaodong); Ren, L (Ren, Long) | ||||||||||||
| Edited by: Ge W | ||||||||||||
| Source: MECHANICAL COMPONENTS AND CONTROL ENGINEERING III Book Series: Applied Mechanics and Materials Volume: 668-669 Pages: 1050-1054 DOI: 10.4028/www.scientific.net/AMM.668-669.1050 Published: 2014 | ||||||||||||
| Abstract: Automatic white balance algorithm (AWB) is significant for color temperature restoration of digital imaging system. According to the limitations and disadvantages of existing traditional white balance methods, in this paper a new AWB algorithm for airborne camera is proposed. Using RGB and histogram information divide the input image into different color character regions; according to the color richness level, adopt different white balance algorithms to achieve chromatic aberration adjustment. Experiment results show the effectiveness of the proposed AWB algorithm for airborne camera. | ||||||||||||
| Accession Number: WOS:000348898100228 | ||||||||||||
| Conference Title: 3rd Asian Pacific Conference on Mechanical Components and Control Engineering (ICMCCE) | ||||||||||||
| Conference Date: SEP 20-21, 2014 | ||||||||||||
| Conference Location: Nankai Univ, Tianjin, PEOPLES R CHINA | ||||||||||||
| Conference Host: Nankai Univ | ||||||||||||
| Author Identifiers: | ||||||||||||
| ||||||||||||
| ISSN: 1660-9336 | ||||||||||||
| ISBN: 978-3-03835-312-6 |
| Record 20 of 86 | ||||||||||||
| Title: VIDEO QUALITY ASSESSMENT VIA SUPERVISED TOPIC MODEL | ||||||||||||
| Author(s): Guo, Q (Guo, Qun); Lu, XQ (Lu, Xiaoqiang); Yuan, Y (Yuan, Yuan) | ||||||||||||
| Book Group Author(s): IEEE | ||||||||||||
| Source: 2014 IEEE CHINA SUMMIT & INTERNATIONAL CONFERENCE ON SIGNAL AND INFORMATION PROCESSING (CHINASIP) Pages: 636-640 Published: 2014 | ||||||||||||
| Abstract: Video quality assessment (VQA) plays a very important role in many video processing and communication systems. Since video signals are ultimately delivered to human observers, an accurate objective video quality metric should agree well with judgment of human visual system (HVS). In this paper, a novel full-reference VQA scheme is developed to measure the perceived video quality in both local and global aspects. First, to account for the crucial impact of motion on perception, effective quality features are extracted from the local spatio-temporal volumes which are generated around the motion trajectories in the video. Second, a statistical model is utilized to discover the latent relation between local quality and global perceived quality. Experimental results on LIVE database demonstrate promising performance of the proposed metric in comparison with state-of-the-art VQA metrics. | ||||||||||||
| Accession Number: WOS:000366612600130 | ||||||||||||
| Conference Title: 2nd IEEE China Summit / International Conference on Signal and Information Processing (IEEE ChinaSIP) | ||||||||||||
| Conference Date: JUL 09-13, 2014 | ||||||||||||
| Conference Location: Xian, PEOPLES R CHINA | ||||||||||||
| Conference Sponsors: IEEE, Inst Elect & Elect Engineers Signal Proc Soc, NW Polytechn Univ, Shaanxi Key Lab Informat Acquisit & Proc, Natl Nat Sci Fdn China, KC Wong Educ Fdn, Texas Instruments, Xidian Univ, Natl Lab Radar Signal Proc | ||||||||||||
| Author Identifiers: | ||||||||||||
| ||||||||||||
| ISBN: 978-1-4799-5403-2 |
| Record 21 of 86 |
| Title: Intense red fluorescence from Ho/Yb codoped tellurite glasses |
| Author(s): He, JL (He, Jianli); Zhou, ZG (Zhou, Zhiguang); Zhan, H (Zhan, Huan); Lin, AX (Lin, Aoxiang) |
| Source: JOURNAL OF NON-CRYSTALLINE SOLIDS Volume: 383 Special Issue: SI Pages: 157-160 DOI: 10.1016/j.jnoncrysol.2013.04.051 Published: JAN 1 2014 |
| Abstract: By optimizing the concentration ratio of Ho/Yb and using conventional melting and quenching methods, a group of Ho/Yb co-doped tellurite glasses with host composition of 78TeO(2)-12ZnO-10Na(2)O (mol.%, TZN) were made for red fiber laser development. Excited by 976 nm laser diode, intense green and red emissions were detected easily even by naked eyes. TZN glass codoped with 0.5 wt.% Ho2O3 and 3 wt.% Yb2O3 was found to present the strongest red emission with the intensity about three times higher than that of the green one, presenting a yellowish-orange color as observed. Besides direct energy transfer process from Yb to Ho as usual, it is believed that cooperative energy transfer upconversion from a pair of Yb donor ions to one Ho acceptor ion and excited state absorptions among different levels of Ho ion are commonly responsible for the observed intense red emission. 2012 Elsevier B.V. All rights reserved. (C) 2013 Elsevier B.V. All rights reserved. |
| Accession Number: WOS:000330819000031 |
| Conference Title: 13th International Conference on the Physics of Non-Crystalline Solids (PNCS) |
| Conference Date: SEP 16-20, 2012 |
| Conference Location: Yichang, PEOPLES R CHINA |
| Conference Sponsors: Hubei Sanxia New Bldg Mat Co Ltd, China Three Gorges Univ, Hubei Feilihua Quartz Glass Co Ltd, Jiansu Xiuqiang Glasswork Co Ltd, FiberHome Technologies Grp, Hubei New Huaguang Informat Mat Co Ltd, Yangtze Opt Fiber & Cable Co Ltd, AVIC Special Glass Mat Co Ltd, Hainan Univ |
| ISSN: 0022-3093 |
| eISSN: 1873-4812 |
| Record 22 of 86 | ||||||
| Title: Multifunction medical endoscope system with optical fiber temperature sensor | ||||||
| Author(s): He, ZQ (He, Zhengquan); Zhou, LB (Zhou, Libin); Luo, BK (Luo, Baoke); Hu, BW (Hu, Baowen); Du, XC (Du, Xinchao); Li, YL (Li, Yulin) | ||||||
| Edited by: Awwal AAS; Iftekharuddin KM; Matin MA; Marquez A | ||||||
| Source: OPTICS AND PHOTONICS FOR INFORMATION PROCESSING VIII Book Series: Proceedings of SPIE Volume: 9216 Article Number: 921606 DOI: 10.1117/12.2074540 Published: 2014 | ||||||
| Abstract: Thermal therapy (or hyperthermia) is one of the effective operations for tumor treating and curing. As tumor tissues are more susceptible to heat than normal tissues, in thermal therapy operations, temperature on operation area is a crucial parameter for optimal treating. When the temperature is too low, the tumor tissues cannot be killed; otherwise, the temperature is too high, the operation may damage normal tissues around the tumor. During thermal therapy operation, the heating power is normally supplied by high-frequency EM field, so traditional temperature sensors, such as thermal couples, thermistors, cannot work stably due to EM interference. We present a multi-function endoscope optical fiber temperature sensor system. With this sensor setup based on principle of fluorescence life time, the temperature on operation point is detected in real time. Furthermore, a build-in endoscope centers in the fiber sensor, thus the operation area can be viewed or imaged directly during the operation. This design can navigate the operation, particularly for in vivo operations. The temperature range of the sensor system is 30 degrees C-150 degrees C, the accuracy can achieve to 0.2 degrees C The imaging fiber buddle is constituted of more than 50k fibers. As the sensor probe is very thin (around 4 mm in diameter), it can also be assembled inside the radiofrequency operation knife. With the presented sensor system in clinic operation physicians can check the temperature in the operation point and view the operation area at the same time. | ||||||
| Accession Number: WOS:000345007500006 | ||||||
| Conference Title: 8th Conference of Optics and Photonics for Information Processing | ||||||
| Conference Date: AUG 18-20, 2014 | ||||||
| Conference Location: San Diego, CA | ||||||
| Conference Sponsors: SPIE | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0277-786X | ||||||
| eISSN: 1996-756X | ||||||
| ISBN: 978-1-62841-243-7 |
| Record 23 of 86 |
| Title: Research on ICCD for Space Observation of Cosmic Ray and Dark Matter |
| Author(s): Hu, BL (Hu Bingliang); Gao, XH (Gao Xiaohui); Wang, L (Wang Le); Pi, HF (Pi Haifeng); Wei, CY (Wei Cuiyu) |
| Edited by: Takahashi T; DenHerder JWA; Bautz M |
| Source: SPACE TELESCOPES AND INSTRUMENTATION 2014: ULTRAVIOLET TO GAMMA RAY Book Series: Proceedings of SPIE Volume: 9144 Article Number: 91443R DOI: 10.1117/12.2055690 Published: 2014 |
| Abstract: The low light level imaging and ultrafast detection system is a high performance ICCD composed of imaging intensifier and high-frame-rate CCD, the important readout system of the semi-digital 3D-imaging calorimeter for space observation of cosmic ray and dark matter that has the function of intensifying, delaying, imaging and memorizing, making rapid response to the ultrafast low light signals that is transmitted by tens of thousands of wavelength shifting fibers, generated by the semi-digital 3D-imaging calorimeter when cosmic ray is passing through. Using the images of ICCD and the semi-digital information reconstruction method, the particle type, energy and direction of cosmic ray can be obtained. |
| Accession Number: WOS:000354529100113 |
| Conference Title: Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray |
| Conference Date: JUN 22-26, 2014 |
| Conference Location: Montreal, CANADA |
| Conference Sponsors: SPIE |
| ISSN: 0277-786X |
| ISBN: 978-0-8194-9612-6 |
| Record 24 of 86 | ||||||
| Title: Low-memory-usage and High-speed Image Wavelet Transform | ||||||
| Author(s): Huang, JJ (Huang Ji-jiang); Cao, JZ (Cao Jian-zhong); Yi, B (Yi Bo); Liu, C (Liu Chen) | ||||||
| Edited by: Xu G; Qiao Y; Wu X | ||||||
| Source: 2014 4TH IEEE INTERNATIONAL CONFERENCE ON INFORMATION SCIENCE AND TECHNOLOGY (ICIST) Book Series: International Conference on Information Science and Technology Pages: 523-526 Published: 2014 | ||||||
| Abstract: Discrete wavelet transform (DWT) is being broadly used in processing digital image, but the large requirement of memory and the time delay limit the DWT usage. For instance, when the image is processed in the space, the realtime processing, low power consumption, reduced complexity and low memory consumption are required. Lifting-based DWT is implemented to lessen complexity. And then the coefficients of the lifting filters are turned to be binary and the filters are therefore implemented efficiently without using any multiplier. In this way the frequency of DWT can be improved and the architecture is simplified. When 2-dimensional DWT is carried out, the line-based wavelet transform is able to save memory in a larger sense. The architecture of line-based wavelet can also be executed in a parallel way. Both horizontal transform and vertical transform can be executed at the same time. This paper takes 9/7 wavelet as an example and compares with others its architecture and performance. The advantages of this design include real-time performance improvement, memory reduction and architecture simplification. | ||||||
| Accession Number: WOS:000364968700124 | ||||||
| Conference Title: 4th IEEE International Conference on Information Science and Technology (ICIST) | ||||||
| Conference Date: APR 26-28, 2014 | ||||||
| Conference Location: Shenzhen, PEOPLES R CHINA | ||||||
| Conference Sponsors: IEEE, IEEE Beijing Sect, Chinese Acad Sci, Shenzhen Inst Adv Technol, Chinese Univ Hong Kong, Chinese Acad Engn, Tongji University | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 2164-4357 | ||||||
| ISBN: 978-1-4799-4808-6 |
| Record 25 of 86 | ||||||||||||||||||
| Title: ADAPTIVE ROAD DETECTION TOWARDS MULTISCALE-MULTILEVEL PROBABILISTIC ANALYSIS | ||||||||||||||||||
| Author(s): Jiang, ZY (Jiang, Zhiyu); Wang, Q (Wang, Qi); Yuan, Y (Yuan, Yuan) | ||||||||||||||||||
| Book Group Author(s): IEEE | ||||||||||||||||||
| Source: 2014 IEEE CHINA SUMMIT & INTERNATIONAL CONFERENCE ON SIGNAL AND INFORMATION PROCESSING (CHINASIP) Pages: 698-702 Published: 2014 | ||||||||||||||||||
| Abstract: Vision-based road detection is a challenging problem because of the changeable shape and varying illumination. Though many efforts have been spent on this topic, the achieved performance is far from satisfactory. To this end, this paper formulates a Bayesian method which simultaneously explores the multiscale-multilevel clues that are considered to be complementary. Two contributions are claimed in this proposed method. 1) By computing the prior distribution in superpixel-level with a novel Laplacian Sparse Subspace Clustering and observation likelihood in pixel-level with statistical color similarity, the posterior probability of road region can be effectively inferred. 2) To ensure the adaptivity of road model in various conditions, a multiscale strategy is presented to fuse the detection results of different scales. Experimental results on several challenging video sequences verify the superiority of the proposed method compared with several popular ones. | ||||||||||||||||||
| Accession Number: WOS:000366612600143 | ||||||||||||||||||
| Conference Title: 2nd IEEE China Summit / International Conference on Signal and Information Processing (IEEE ChinaSIP) | ||||||||||||||||||
| Conference Date: JUL 09-13, 2014 | ||||||||||||||||||
| Conference Location: Xian, PEOPLES R CHINA | ||||||||||||||||||
| Conference Sponsors: IEEE, Inst Elect & Elect Engineers Signal Proc Soc, NW Polytechn Univ, Shaanxi Key Lab Informat Acquisit & Proc, Natl Nat Sci Fdn China, KC Wong Educ Fdn, Texas Instruments, Xidian Univ, Natl Lab Radar Signal Proc | ||||||||||||||||||
| Author Identifiers: | ||||||||||||||||||
| ||||||||||||||||||
| ISBN: 978-1-4799-5403-2 |
| Record 26 of 86 |
| Title: Seal Designing of Theodolite used in seaside environment |
| Author(s): Jin, HM (Jin Humin); Yan, XX (Yan Xiaoxu); Hao, W (Hao Wei); Zhou, SZ (Zhou Sizhong) |
| Edited by: Luo X; Giessen H |
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: SMART STRUCTURES AND MATERIALS FOR MANUFACTURING AND TESTING Book Series: Proceedings of SPIE Volume: 9285 Article Number: 928504 DOI: 10.1117/12.2068710 Published: 2014 |
| Abstract: Based on the environment requirements in seaside there exists static and dynamic seal designing for the photoelectric Theodolite. Static seal designing emphatically includes the designing of o-ring size and mechanical property analysis of o-ring seal, which is difficult to adopt conventional dynamic seal to meet the requirements. According to practical application, the combination of the radial labyrinth seal and high quality felt seal are designed. The combination seal which better solves the seal problem of narrow radial size is a good way of dynamic seal. At the same time, there is engineering practice needing to proof the radial labyrinth seal. |
| Accession Number: WOS:000344547600004 |
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Smart Structures and Materials for Manufacturing and Testing |
| Conference Date: APR 26-29, 2014 |
| Conference Location: Harbin, PEOPLES R CHINA |
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE |
| ISSN: 0277-786X |
| ISBN: 978-1-62841-360-1 |
| Record 27 of 86 | |||||||||||||||||||||||||||||||||
| Title: Burst-mode operation of a 650GHz mode locked laser based on a high order microring resonator | |||||||||||||||||||||||||||||||||
| Author(s): Jin, L (Jin, Lin); Pasquazi, A (Pasquazi, Alessia); Tsang, KS (Tsang, K. S.); Ho, V (Ho, Victor); Peccianti, M (Peccianti, Marco); Caspani, L (Caspani, Lucia); Ferrera, M (Ferrera, Marcello); Pun, EYB (Pun, E. Y. B.); Wei, PKA (Wei, P. K. A.); Little, BE (Little, Brent E.); Moss, DJ (Moss, David J.); Morandotti, R (Morandotti, Roberto); Chu, ST (Chu, Sai T.) | |||||||||||||||||||||||||||||||||
| Book Group Author(s): IEEE | |||||||||||||||||||||||||||||||||
| Source: 2014 OPTOELECTRONICS AND COMMUNICATIONS CONFERENCE AND AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY (OECC/ACOFT 2014) Pages: 70-72 Published: 2014 | |||||||||||||||||||||||||||||||||
| Abstract: We demonstrated a new regime of operation for ultrafast mode-locked lasers that we termed "burst-mode" modelocking. By exploiting an integrated 11th order micro-ring resonator, our scheme achieves stable operation resulting in a mode-locked train of pulses at 650 GHz with a burst mode envelope of 40 ps at 7.12 MHz. | |||||||||||||||||||||||||||||||||
| Accession Number: WOS:000347188900030 | |||||||||||||||||||||||||||||||||
| Conference Title: 19th OptoElectronics and Communication Conference (OECC) / 39th Australian Conference on Optical Fibre Technology (ACOFT) | |||||||||||||||||||||||||||||||||
| Conference Date: JUL 06-10, 2014 | |||||||||||||||||||||||||||||||||
| Conference Location: Engineers Australia, Melbourne, AUSTRALIA | |||||||||||||||||||||||||||||||||
| Conference Sponsors: Australian Opt Soc, Univ Melbourne, Melbourne Sch Engn, NICTA, CUDOS, Inst Photon & Adv Sensing, Macquarie Univ, MQ Photon Res Ctr, Discovery Semicond Inc, IEEE Photon Soc, Opt Soc Korea, IEICE Commun Soc, EIC, Alnair Labs, Opt Soc | |||||||||||||||||||||||||||||||||
| Conference Host: Engineers Australia | |||||||||||||||||||||||||||||||||
| Author Identifiers: | |||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||
| ISBN: 978-1-922107-21-3 |
| Record 28 of 86 |
| Title: Design of transient light signal simulator based on FPGA |
| Author(s): Kang, J (Kang, Jing); Chen, RL (Chen, Rong-li); Wang, H (Wang, Hong) |
| Edited by: Borovoi AG; Liu D |
| Source: INTERNATIONAL SYMPOSIUM ON OPTOELECTRONIC TECHNOLOGY AND APPLICATION 2014: OPTICAL REMOTE SENSING TECHNOLOGY AND APPLICATIONS Book Series: Proceedings of SPIE Volume: 9299 DOI: 10.1117/12.2070215 Published: 2014 |
| Abstract: A design scheme of transient light signal simulator based on Field Programmable gate Array ( FPGA) was proposed in this paper. Based on the characteristics of transient light signals and measured feature points of optical intensity signals, a fitted curve was created in MATLAB. And then the wave data was stored in a programmed memory chip AT29C1024 by using SUPERPRO programmer. The control logic was realized inside one EP3C16 FPGA chip. Data readout, data stream cache and a constant current buck regulator for powering high-brightness LEDs were all controlled by FPGA. A 12-Bit multiplying CMOS digital-to-analog converter (DAC) DAC7545 and an amplifier OPA277 were used to convert digital signals to voltage signals. A voltage-controlled current source constituted by a NPN transistor and an operational amplifier controlled LED array diming to achieve simulation of transient light signal. LM3405A, 1A Constant Current Buck Regulator for Powering LEDs, was used to simulate strong background signal in space. Experimental results showed that the scheme as a transient light signal simulator can satisfy the requests of the design stably. |
| Accession Number: WOS:000349376400008 |
| Conference Title: International Symposium on Optoelectronic Technology and Application (IPTA) - Optical Remote Sensing Technology and Applications |
| Conference Date: MAY 13-15, 2014 |
| Conference Location: Beijing, PEOPLES R CHINA |
| Conference Sponsors: Chinese Soc Astronaut, Photoelectron Technol Comm, China High Tech Industrializat Assoc, SPIE |
| ISSN: 0277-786X |
| ISBN: 978-1-62841-385-4 |
| Record 29 of 86 | |||||||||||||||||||||||||||
| Title: Selective plane illumination microscopy with structured illumination based on spatial light modulators | |||||||||||||||||||||||||||
| Author(s): Li, RZ (Li, Runze); Zhou, X (Zhou, Xing); Wu, D (Wu, Di); Peng, T (Peng, Tong); Yang, YL (Yang, Yanlong); Lei, M (Lei, Ming); Yu, XH (Yu, Xianhua); Yao, BL (Yao, Baoli); Ye, T (Ye, Tong) | |||||||||||||||||||||||||||
| Edited by: Brown TG; Cogswell CJ; Wilson T | |||||||||||||||||||||||||||
| Source: THREE-DIMENSIONAL AND MULTIDIMENSIONAL MICROSCOPY: IMAGE ACQUISITION AND PROCESSING XXI Book Series: Proceedings of SPIE Volume: 8949 Article Number: 89491S DOI: 10.1117/12.2040319 Published: 2014 | |||||||||||||||||||||||||||
| Abstract: Structured-illumination microscopy (SIM) is an efficacious tool to decrease the contribution of the out-of-focus light to images of specimens. However, in SIM, the frequency of the spatial modulation applied to specimens should be adjustable according to the optical properties of the specimens to reach the optimal contrasts. Hence, a common theme in SIM is how the flexibility and quality of modulations at different frequencies can be improved. Digital scanned laser light-sheet microscopy with structured illumination (DSLM-SI) has been the most flexible means for generating modulation and optical sectioning. The complexity of synchronization between the temporal modulation and the beam scanning makes it hard to use and less stable; it also takes more time to acquire images for one plane than selective plane illumination microscopy (SPIM). In this report, we present a recent effort to use a spatial light modulator (SLM) to provide spatial modulation in SPIM. With the SLM, both of the frequency and phase of lateral modulation can be changed rapidly; moreover, this SLM-based SPIM can achieve fast imaging without mechanical moving parts. | |||||||||||||||||||||||||||
| Accession Number: WOS:000336804200037 | |||||||||||||||||||||||||||
| Conference Title: Conference on Three-Dimensional and Multidimensional Microscopy - Image Acquisition and Processing XXI | |||||||||||||||||||||||||||
| Conference Date: FEB 03-06, 2014 | |||||||||||||||||||||||||||
| Conference Location: San Francisco, CA | |||||||||||||||||||||||||||
| Conference Sponsors: SPIE | |||||||||||||||||||||||||||
| Author Identifiers: | |||||||||||||||||||||||||||
| |||||||||||||||||||||||||||
| ISSN: 0277-786X | |||||||||||||||||||||||||||
| eISSN: 1996-756X | |||||||||||||||||||||||||||
| ISBN: 978-0-8194-9862-5 |
| Record 30 of 86 |
| Title: Study of the Key Aspects in Developing kW-Level Diode Lasers for Solid State Laser Pumping |
| Author(s): Li, XN (Li, Xiaoning); Wang, LW (Wang, Lingwei); Cai, WS (Cai, Wanshao); Hao, B (Hao, Bei); Hou, D (Hou, Dong); Liu, H (Liu, Hui); Zhang, P (Zhang, Pu); Liu, XS (Liu, Xingsheng) |
| Book Group Author(s): IEEE |
| Source: 2014 INTERNATIONAL CONFERENCE LASER OPTICS Published: 2014 |
| Abstract: In this paper, the key aspects, such as thermal management, thermal stress analysis and management, processes development, failure analysis and reliability evaluation, in developing kW-level diode lasers for solid state laser pumping are studied. |
| Accession Number: WOS:000360494300009 |
| Conference Title: International Conference on Laser Optics |
| Conference Date: JUN 30-JUL 04, 2014 |
| Conference Location: St Petersburg, RUSSIA |
| Record 31 of 86 |
| Title: Infrared Small Target Detection Based on Bilateral Filtering Algorithm with Similarity Judgments |
| Author(s): Li, YB (Li, Yanbei); Li, Y (Li, Yan) |
| Edited by: Guina M; Gong H; Niu Z; Lu J |
| Source: INTERNATIONAL SYMPOSIUM ON OPTOELECTRONIC TECHNOLOGY AND APPLICATION 2014: INFRARED TECHNOLOGY AND APPLICATIONS Book Series: Proceedings of SPIE Volume: 9300 Article Number: 93000P DOI: 10.1117/12.2070949 Published: 2014 |
| Abstract: Infrared small target detection is part of the key technologies in infrared precision-guided, search and track system. Resulting from the relative distance of the infrared image system and the target is far, the target becomes small, faint and obscure. Furthermore, the interference of background clutter and system noise is intense. To solve the problem of infrared small target detection in a complex background, this paper proposes a bilateral filtering algorithm based on similarity judgments for infrared image background prediction. The algorithm introduces gradient factor and similarity judgment factor into traditional bilateral filtering. The two factors can enhance the accuracy of the algorithm for smooth region. At the same time, spatial proximity coefficients and gray similarity coefficient in the bilateral filtering are all expressed by the first two of McLaughlin expansion, which aiming at reducing the time overhead. Simulation results show that the proposed algorithm can effectively suppress complex background clutter in the infrared image and enhance target signal compared with the improved bilateral filtering algorithm, and it also can improve the signal to noise ratio (SNR) and contrast. Besides, this algorithm can reduce the computation time. In a word, this algorithm has a good background rejection performance. |
| Accession Number: WOS:000349371300025 |
| Conference Title: International Symposium on Optoelectronic Technology and Application (IPTA) - Infrared Technology and Applications |
| Conference Date: MAY 13-15, 2014 |
| Conference Location: Beijing, PEOPLES R CHINA |
| Conference Sponsors: Chinese Soc Astronaut, Photoelectron Technol Comm, China High Tech Industrializat Assoc, SPIE |
| ISSN: 0277-786X |
| eISSN: 1996-756X |
| ISBN: 978-1-62841-386-1 |
| Record 32 of 86 |
| Title: Theory of Circular Plate for Mirrors on Back-point Support |
| Author(s): Liang, YQ (Liang Yuanqing); Zhou, SZ (Zhou Sizhong); Jiang, B (Jiang Bo) |
| Edited by: Jiang W; Cho MK; Wu F |
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES Book Series: Proceedings of SPIE Volume: 9280 Article Number: 928011 DOI: 10.1117/12.2067980 Published: 2014 |
| Abstract: In space reflective optical system, the back-point support is one of the widely used support means. For back-point support method, the support points position are important for the deformation of the reflective surface, find the best support points position of the mirror is particularly important. A new technique of mass allocation was discovered by using the theory of circular plate in this paper, and then the mass allocation method was used to look for the locations of the back support points on a single ring for a circular mirror having a central hole (primary mirror of Cassegrain telescope). Then the Ansys software was used to calculate the deformation of the reflective surface when the mirror supported under different radius. It was validated that the mirror surface deformation is minimized due to gravity when supported in these positions which confirmed by mass allocation. It was proved that mass allocation is a simple and effective way to find the optimum support location of back-point support. |
| Accession Number: WOS:000344602300036 |
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Large Mirrors and Telescopes |
| Conference Date: APR 26-29, 2014 |
| Conference Location: Harbin, PEOPLES R CHINA |
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE |
| ISSN: 0277-786X |
| ISBN: 978-1-62841-355-7 |
| Record 33 of 86 | ||||||||||||||||||
| Title: IN DEFENSE OF ITERATED CONDITIONAL MODE FOR HYPERSPECTRAL IMAGE CLASSIFICATION | ||||||||||||||||||
| Author(s): Lin, JZ (Lin, Jianzhe); Wang, Q (Wang, Qi); Yuan, Y (Yuan, Yuan) | ||||||||||||||||||
| Book Group Author(s): IEEE | ||||||||||||||||||
| Source: 2014 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO (ICME) Book Series: IEEE International Conference on Multimedia and Expo Published: 2014 | ||||||||||||||||||
| Abstract: Hyperspectral image classification is one of the most significant topics in remote sensing. A large number of methods have been proposed to improve the classification accuracy. However, the improvement often comes at the cost of higher complexity. In this work, we mainly focus on the Markov Random Fields related paradigm, which involves a demanding energy minimization procedure. Traditional methods are prone to employ the advanced optimization techniques. On the contrary, this paper is in defense of a simple yet efficient method for hyperspectral image classification, Iterated Conditional Mode, which has been generally considered inferior to other state-of-the-art methods. Our purpose is successfully achieved by tackling two inherent drawbacks of ICM, sensitive label initialization and local minimum. We apply our method to three real-world hyperspectral images, and compare the results with those of state-of-the-art methods. The comparisons show that the proposed method outperforms its competitors. | ||||||||||||||||||
| Accession Number: WOS:000360831800047 | ||||||||||||||||||
| Conference Title: IEEE International Conference on Multimedia and Expo Workshops (ICMEW) | ||||||||||||||||||
| Conference Date: JUL 14-18, 2014 | ||||||||||||||||||
| Conference Location: Chengdu, PEOPLES R CHINA | ||||||||||||||||||
| Conference Sponsors: IEEE, Baidu, NSFC, NSF, QIY, BOCOM, Yahoo, IBM Res, RICOH, Microsoft Res | ||||||||||||||||||
| Author Identifiers: | ||||||||||||||||||
| ||||||||||||||||||
| ISSN: 1945-7871 | ||||||||||||||||||
| ISBN: 978-1-4799-4761-4 |
| Record 34 of 86 | |||||||||
| Title: High-efficiency terahertz-wave generation in silicon membrane waveguides | |||||||||
| Author(s): Liu, HJ (Liu, Hongjun); Wang, ZL (Wang, Zhaolu); Huang, N (Huang, Nan); Sun, QB (Sun, Qibing) | |||||||||
| Edited by: Razeghi M; Baranov AN; Zavada JM; Pavlidis D | |||||||||
| Source: TERAHERTZ EMITTERS, RECEIVERS, AND APPLICATIONS V Book Series: Proceedings of SPIE Volume: 9199 Article Number: 91990D DOI: 10.1117/12.2060232 Published: 2014 | |||||||||
| Abstract: Terahertz (THz) wave generation via four-wave mixing (FWM) in silicon membrane waveguides is investigated with mid-infrared pump. The silicon membrane waveguides with width of 12 mu m and heights varied from 14 mu m to 17 mu m, which can confine the THz-wave ranging from 7.5 THz to 10 THz due to the large refractive index contrast of the waveguide core and cladding, are designed to realize the collinear phase matching for THz-wave generation via FWM. Compared with the conventional parametric amplification or wavelength conversion based on FWM in silicon waveguides, which needs a pump wavelength located in the anomalous group-velocity dispersion (GVD) regime to realize broad phase matching, the pump wavelength located in the normal GVD regime is required to realize phase matching because of the large signal-pump frequency detuning. Phase matching for a tunable THz-wave ranging from 8.57 THz to 10 THz can be realized by tuning the pump wavelength from 4.2 mu m to 4.4 mu m in the silicon waveguide with rib height of 15 mu m. Whilst, the phase matching bandwidth of THz-wave ranging from 7.7 THz to 10 THz can be achieved by tailoring the waveguide height from 14 mu m to 17 mu m when the pump wavelength is 4.3 mu m. Moreover, the conversion efficiency of the THz-wave generation is studied with different pump wavelengths and waveguide heights, the maximum conversion efficiency of 1.25% at 9.2 THz can be obtained in a 6-mm long silicon waveguide when the pump wavelength is 4.3 mu m and the waveguide height is 15 mu m. | |||||||||
| Accession Number: WOS:000348191300006 | |||||||||
| Conference Title: Conference on Terahertz Emitters, Receivers, and Applications V | |||||||||
| Conference Date: AUG 17-18, 2014 | |||||||||
| Conference Location: San Diego, CA | |||||||||
| Conference Sponsors: SPIE | |||||||||
| Author Identifiers: | |||||||||
| |||||||||
| ISSN: 0277-786X | |||||||||
| eISSN: 1996-756X | |||||||||
| ISBN: 978-1-62841-226-0 |
| Record 35 of 86 | ||||||
| Title: Development of the Large Area MCP-PMT | ||||||
| Author(s): Liu, SL (Liu Shulin); Wang, YF (Wang Yifang); Zhao, TC (Zhao Tianchi); Liu, HL (Liu Hulin); Si, SG (Si Shuguang); Tian, JS (Tian Jinshou); Qian, S (Qian Sen); Sun, JN (Sun Jian-Ning); Cai, X (Cai Xiao); Li, D (Li Dong); Chen, L (Chen Lin); Yan, BJ (Yan Baojun); Yang, YZ (Yang Yuzhen) | ||||||
| Edited by: Jiang Y; Yu J; Kippelen B | ||||||
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTOELECTRONICS MATERIALS AND DEVICES FOR SENSING AND IMAGING Book Series: Proceedings of SPIE Volume: 9284 Article Number: 928402 DOI: 10.1117/12.2069902 Published: 2014 | ||||||
| Abstract: To adapt the specific demands of photomultiplier tubes (PMTs) in the Jiangmen Underground Neutrino Observatory, we design and manufacture a new type of micro-channel plate PMT (MCP-PMT) with the following performance indicators: the PMTs' glass shell adopts the formula of GG-17 which have no K2O, and very low background (the contents of Th-232, U-238 and K-40 in the raw materials are less than 40 ppb, 20 ppb and 10 ppb, respectively). Its main body is sphere with 500 mm external diameter, 4 mm wall thickness and the tails that using a gradual transition of kinds of low radiation background glasses, then sealing with the Kovar. The photocathode material with lowest dark noise is bi-alkali photocathode which spectral region matches the liquid scintillator emission spectral (400 similar to 440 nm). The front and back hemisphere is transmission and reflective photocathode separately. Two sets of double-stack micro-channel plates replacing the dynode chain are used to detect the photoelectrons from both sites. The focusing system makes the photoelectrons hit into the inside of MCPs to the uttermost. The anode and lead make sure charge signal is no distortion. No matter made by transfer equipment or not, the peak value of quantum efficiency of the PMT should reach 30%, and the peak-to-valley ratio of single photoelectron spectrum has surpassed 2.5:1. In a word, the MCP-PMT's reliability and other characteristics meet the need of Jiangmen Underground Neutrino Observatory. | ||||||
| Accession Number: WOS:000343091100002 | ||||||
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optoelectronics Materials and Devices for Sensing and Imaging | ||||||
| Conference Date: APR 26-29, 2014 | ||||||
| Conference Location: Harbin, PEOPLES R CHINA | ||||||
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0277-786X | ||||||
| eISSN: 1996-756X | ||||||
| ISBN: 978-1-62841-359-5 |
| Record 36 of 86 | ||||||
| Title: Nonlinear phenomena of dissipative solitons in fiber laser | ||||||
| Author(s): Liu, XM (Liu, Xueming) | ||||||
| Book Group Author(s): IEEE | ||||||
| Source: 2014 XXXITH URSI GENERAL ASSEMBLY AND SCIENTIFIC SYMPOSIUM (URSI GASS) Published: 2014 | ||||||
| Accession Number: WOS:000366628701176 | ||||||
| Conference Title: 29th URSI General Assembly and Scientific Symposium (URSI GASS) | ||||||
| Conference Date: AUG 16-23, 2014 | ||||||
| Conference Location: Beijing, PEOPLES R CHINA | ||||||
| Conference Sponsors: URSI | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISBN: 978-1-4673-5225-3 |
| Record 37 of 86 | ||||||
| Title: Environmental Simulation Evaluation of SSiC Brazed Optical Mirrors | ||||||
| Author(s): Liu, Y (Liu, Yan); Ma, Z (Ma, Zhen); Chen, J (Chen, Jian); Chen, ZM (Chen, Zhongming); Liu, XJ (Liu, Xuejian); Huang, ZR (Huang, Zhengren) | ||||||
| Edited by: Jiang W; Cho MK; Wu F | ||||||
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES Book Series: Proceedings of SPIE Volume: 9280 Article Number: 928009 DOI: 10.1117/12.2068140 Published: 2014 | ||||||
| Abstract: Sintered silicon carbide (SSiC) is becoming one of the most important materials for the optical mirrors due to its excellent specific stiffness (E/rho) and demission stability (lambda/alpha). However, it is difficult to fabricate the monolithic structure SSiC optical mirror with demission of larger than F1.5m because of process limitation. Joining of SSiC segments (brazing) provide a good solution to prepare large size mirror optics. However, compared with the uniform properties of the monolithic structure SSiC optical mirror, the brazed mirror is composed of two materials (SSiC segments and brazing material), so the performance of optical grinding and reliability of brazed optical mirrors become the focus. In this paper, the Phi 300mm and Phi 600mm brazed optical mirrors was used to evaluate the reliability of different conditions. Three kinds of environmental simulation tests, including thermal stability, thermal circle and random vibration were carried out. The evaluation results show that the temperature and vibration has no obvious effects on the surface figure (RMS) of the brazed optical mirrors. | ||||||
| Accession Number: WOS:000344602300008 | ||||||
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Large Mirrors and Telescopes | ||||||
| Conference Date: APR 26-29, 2014 | ||||||
| Conference Location: Harbin, PEOPLES R CHINA | ||||||
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0277-786X | ||||||
| eISSN: 1996-756X | ||||||
| ISBN: 978-1-62841-355-7 |
| Record 38 of 86 |
| Title: A multi-focus image adaptive fusion method based on comprehensive index |
| Author(s): Lu, H (Lu, Hao); Song, ZX (Song, Zongxi); Gao, W (Gao, Wei); Wang, Q (Wang, Qi); Xi, JB (Xi, Jiangbo) |
| Edited by: Jiang Y; Yu J; Kippelen B |
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTOELECTRONICS MATERIALS AND DEVICES FOR SENSING AND IMAGING Book Series: Proceedings of SPIE Volume: 9284 Article Number: 92840N DOI: 10.1117/12.2069158 Published: 2014 |
| Abstract: As the focusing range of optical imaging system is generally limited, it is difficult to make all the objects of the same scene clearly shown in one image. Besides, a case usually rose that the fused image with a high entropy, however, is not satisfying for vision effect. In this paper, a new method of multi-focus image fusion based on adaptive dividing blocks using comprehensive index was proposed, in which the comprehensive index was on basis of spatial frequency and entropy. The comprehensive index is better with the higher spatial frequency and entropy. Firstly, the registered original images were divided into a series of blocks of which the sizes were proper and the same, and then the comprehensive index for each block of source images was calculated as the focus criterion function to select an optimal block for each corresponding block of the fused image. In view of the relevance between pixel and pixel in one image, the optimal blocks selected were fused with a global fusion function. Furthermore, the sum-modified-Laplacian of fused image was used as the measure function to supervise the adaptive blocking, in which the optimal block was obtained when SML of the fused image had reached a high value or the iteration had achieved the specified numbers. Finally, the optimal size of the sub-block was automatically obtained, which was used to fuse the source images. As it was shown in the experimental results, the proposed method which was simple, but more effective compared with the traditional multi-scale decomposing methods such as wavelet transform, wavelet packet transform, contourlet transform and so on. At the same time, the proposed method was also superior to the method in the literature for it could remove boundary discontinuities between image blocks. Contemporarily, much more details and edges information of the source images were reserved in the fused image. |
| Accession Number: WOS:000343091100023 |
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optoelectronics Materials and Devices for Sensing and Imaging |
| Conference Date: APR 26-29, 2014 |
| Conference Location: Harbin, PEOPLES R CHINA |
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE |
| ISSN: 0277-786X |
| ISBN: 978-1-62841-359-5 |
| Record 39 of 86 |
| Title: Hybrid Adaptive Robust Controller on Inertial Gyro LOS Platform |
| Author(s): Luo, CH (Luo, Cuihua); Ma, CW (Ma, Caiwen); Li, Y (Li, Yan) |
| Edited by: Liu DL; Zhu XB; Xu KL; Fang DM |
| Source: APPLIED SCIENCE, MATERIALS SCIENCE AND INFORMATION TECHNOLOGIES IN INDUSTRY Book Series: Applied Mechanics and Materials Volume: 513-517 Pages: 2910-2913 DOI: 10.4028/www.scientific.net/AMM.513-517.2910 Published: 2014 |
| Abstract: This paper was presented one new modified controller scheme for inertial gyro control system. Based on Narendra's hybrid adaptive law, the modified algorithm was variable metric that took use of parameter matrix Gamma(k) to obtain two updating laws in turn online. The key modified contents were: 1) the output y(t) was passed by one low-pass filter, 2) the parameter was updating in term of one proper initial Gamma(0) and the measurable values. The objective of the proposed new adaptive robust control schemes was to achieve fast convergence of parameter updating, and promise good robust stability of control system during tracking, reduce the tracking error at start-time with filtered output. |
| Accession Number: WOS:000349668904032 |
| Conference Title: International Conference on Advances in Materials Science and Information Technologies in Industry (AMSITI) |
| Conference Date: JAN 11-12, 2014 |
| Conference Location: Xian, PEOPLES R CHINA |
| ISSN: 1660-9336 |
| ISBN: 978-3-03835-012-5 |
| Record 40 of 86 | |||||||||
| Title: Graded Index Microstructured Polymer Fiber for Terahertz Applications | |||||||||
| Author(s): Ma, T (Ma, Tian); Skorobogatiy, M (Skorobogatiy, Maksim); Wang, LL (Wang, Lili) | |||||||||
| Book Group Author(s): IEEE | |||||||||
| Source: 2014 39TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) Book Series: International Conference on Infrared Millimeter and Terahertz Waves Published: 2014 | |||||||||
| Abstract: A novel graded index microstructured polymer THz fiber, whose graded index profile is achieved by a hexagonal subwavelength air-hole array with graded diameters, is studied. The simulation results show that this geometry design can reduce the dispersion and the confinement loss significantly. | |||||||||
| Accession Number: WOS:000378889200012 | |||||||||
| Conference Title: 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) | |||||||||
| Conference Date: SEP 14-19, 2014 | |||||||||
| Conference Location: Tucson, AZ | |||||||||
| Conference Sponsors: THORLABS, Tydex, TOPTICA Photon, Bruker, Gentec EO, Lake Shore Cryotron, Ekspla, Zomega, TeraSense, Insight Product, Emcore, QMC Instruments, TeraView, NeaSpec, Advantest, MenloSystems, Traycer, Microtech Instruments Inc, LongWave Photon, Virginia Diodes Inc, ASU, MTT S, Journal Infrared Millimeter & Tera Hertz Waves, Tera Hertz Sci & Technol, Army Res Off | |||||||||
| Author Identifiers: | |||||||||
| |||||||||
| ISSN: 2162-2027 | |||||||||
| ISBN: 978-1-4799-3877-3 |
| Record 41 of 86 |
| Title: Compressed Sensing Based on the Improved Wavelet Transform for Image Processing |
| Author(s): Pang, P (Pang, Peng); Gao, W (Gao, Wei); Song, ZX (Song, Zong-Xi); Xi, JB (Xi, Jiang-bo) |
| Edited by: Jiang Y; Yu J; Kippelen B |
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTOELECTRONICS MATERIALS AND DEVICES FOR SENSING AND IMAGING Book Series: Proceedings of SPIE Volume: 9284 Article Number: 92840O DOI: 10.1117/12.2069221 Published: 2014 |
| Abstract: Compressed sensing theory is a new sampling theory that can sample signal in a below sampling rate than the traditional Nyquist sampling theory. Compressed sensing theory that has given a revolutionary solution is a novel sampling and processing theory under the condition that the signal is sparse or compressible. This paper investigates how to improve the theory of CS and its application in imaging system. According to the properties of wavelet transform sub-bands, an improved compressed sensing algorithm based on the single layer wavelet transform was proposed. Based on the feature that the most information was preserved on the low-pass layer after the wavelet transform, the improved compressed sensing algorithm only measured the low-pass wavelet coefficients of the image but preserving the high-pass wavelet coefficients. The signal can be restricted exactly by using the appropriate reconstruction algorithms. The reconstruction algorithm is the key point that most researchers focus on and significant progress has been made. For the reconstruction, in order to improve the orthogonal matching pursuit (OMP) algorithm, increased the iteration layers make sure low-pass wavelet coefficients could be recovered by measurements exactly. Then the image could be reconstructed by using the inverse wavelet transform. Compared the original compressed sensing algorithm, simulation results demonstrated that the proposed algorithm decreased the processed data, signal processed time decreased obviously and the recovered image quality improved to some extent. The PSNR of the proposed algorithm was improved about 2 to 3 dB. Experimental results show that the proposed algorithm exhibits its superiority over other known CS reconstruction algorithms in the literature at the same measurement rates, while with a faster convergence speed. |
| Accession Number: WOS:000343091100024 |
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optoelectronics Materials and Devices for Sensing and Imaging |
| Conference Date: APR 26-29, 2014 |
| Conference Location: Harbin, PEOPLES R CHINA |
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE |
| ISSN: 0277-786X |
| ISBN: 978-1-62841-359-5 |
| Record 42 of 86 | ||||||||||||||||||
| Title: A NEW SPARSE FEATURE-BASED PATCH FOR DENSE CORRESPONDENCE | ||||||||||||||||||
| Author(s): Qing, XM (Qing, Xiameng); Shen, JB (Shen, Jianbing); Li, XL (Li, Xuelong); Jia, YD (Jia, Yunde) | ||||||||||||||||||
| Book Group Author(s): IEEE | ||||||||||||||||||
| Source: 2014 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO (ICME) Book Series: IEEE International Conference on Multimedia and Expo Published: 2014 | ||||||||||||||||||
| Abstract: This paper presents a new method to compute the dense correspondences between two images by using the sparse feature-based patches in an energy optimization framework. Many transformation and deformation cues such as color, scale and rotation should be considered when we finding dense correspondences between images. However, most existing methods only consider part of these transformations, which will introduce the uncorrect correspondence results. In terms of the property of the sparse feature and the principle that nearest sub-scenes and neighbors are much more similar, we design a new energy optimization to guide the dense matching process. Both transformation and deformation are considered in our energy optimization framework since we design the feature-based patches. Thus, our algorithm can match the complicated scenes and objects robustly. At last, a local refinement technique is proposed to solve the perturbation of the matched patches. Experimental results demonstrate that our method outperforms the state-of-the-art algorithms. | ||||||||||||||||||
| Accession Number: WOS:000360831800164 | ||||||||||||||||||
| Conference Title: IEEE International Conference on Multimedia and Expo Workshops (ICMEW) | ||||||||||||||||||
| Conference Date: JUL 14-18, 2014 | ||||||||||||||||||
| Conference Location: Chengdu, PEOPLES R CHINA | ||||||||||||||||||
| Conference Sponsors: IEEE, Baidu, NSFC, NSF, QIY, BOCOM, Yahoo, IBM Res, RICOH, Microsoft Res | ||||||||||||||||||
| Author Identifiers: | ||||||||||||||||||
| ||||||||||||||||||
| ISSN: 1945-7871 | ||||||||||||||||||
| ISBN: 978-1-4799-4761-4 |
| Record 43 of 86 | ||||||||||||||||||||||||||||||||||||
| Title: Integrated Source of Multiplexed Heralded Photons | ||||||||||||||||||||||||||||||||||||
| Author(s): Reimer, C (Reimer, Christian); Caspani, L (Caspani, Lucia); Clerici, M (Clerici, Matteo); Ferrera, M (Ferrera, Marcello); Kues, M (Kues, Michael); Peccianti, M (Peccianti, Marco); Pasquazi, A (Pasquazi, Alessia); Razzari, L (Razzari, Luca); Little, BE (Little, Brent E.); Chu, ST (Chu, Sai T.); Moss, DJ (Moss, David J.); Morandotti, R (Morandotti, Roberto) | ||||||||||||||||||||||||||||||||||||
| Book Group Author(s): IEEE | ||||||||||||||||||||||||||||||||||||
| Source: 2014 IEEE PHOTONICS SOCIETY SUMMER TOPICAL MEETING SERIES Pages: 142-143 DOI: 10.1109/SUM.2014.80 Published: 2014 | ||||||||||||||||||||||||||||||||||||
| Abstract: We report an integrated, CMOS-compatible source of multiplexed heralded photons, distributed over several wavelengths at standard communication channels and compatible with quantum memories. Our system operates in a self-locked mode without an external pump laser. | ||||||||||||||||||||||||||||||||||||
| Accession Number: WOS:000361018200073 | ||||||||||||||||||||||||||||||||||||
| Conference Title: IEEE-Photonics-Society Summer Topical Meeting Series | ||||||||||||||||||||||||||||||||||||
| Conference Date: JUL 14-16, 2014 | ||||||||||||||||||||||||||||||||||||
| Conference Location: Montreal, CANADA | ||||||||||||||||||||||||||||||||||||
| Conference Sponsors: IEEE Photon Soc, IEEE Comp Soc, IEEE | ||||||||||||||||||||||||||||||||||||
| Author Identifiers: | ||||||||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||||||||
| ISBN: 978-1-4799-2767-8 |
| Record 44 of 86 | ||||||
| Title: An Improved Stereo Match Algorithm Based on Support-Weight Approach | ||||||
| Author(s): Ren, L (Ren Long); Yang, L (Yang Lei); Zhao, XD (Zhao Xiao-dong); Zhou, ZF (Zhou Zuo-feng); Liu, GS (Liu Guang-sen); Jiaqi-Fei (Jiaqi-Fei) | ||||||
| Edited by: Li JB | ||||||
| Source: 2014 FOURTH INTERNATIONAL CONFERENCE ON INSTRUMENTATION AND MEASUREMENT, COMPUTER, COMMUNICATION AND CONTROL (IMCCC) Book Series: International Conference on Instrumentation Measurement Computer Communication and Control Pages: 964-967 DOI: 10.1109/IMCCC.2014.203 Published: 2014 | ||||||
| Abstract: Local stereo matching methods are still used widely because they are fast and simple. But the accuracy of local methods is much poorer than the global methods. They usually achieve accuracy at the expense of speed. Simple local methods are fast, but exhibit systematic errors. In this paper we propose an improved method based on support-weight approach, which can enhance the matching efficiency and accuracy. By utilizing a adaptive support-window which will change the size of the window relying on different area,, we use a new disparity cost volume function which is much more simple than the traditional one. From the experimental result, we can see the accuracy of the disparity map is as better as the traditional one while the computational time is reduced. The proposed method includes three procedures, At first, we need to confirm the pixels 'window size in order to calculate the disparity; secondly, the adaptive support-weight of each pixel in left image will be calculated; the final step is to select the most optimal disparity in the right image. After the three steps, we can get the best matching point in the right image which is corresponding to the right image. | ||||||
| Accession Number: WOS:000365532300196 | ||||||
| Conference Title: 4th International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) | ||||||
| Conference Date: SEP 18-20, 2014 | ||||||
| Conference Location: Harbin Inst Technol, Harbin, PEOPLES R CHINA | ||||||
| Conference Sponsors: IEEE Comp Soc, IEEE Harbin Sect | ||||||
| Conference Host: Harbin Inst Technol | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 2373-6844 | ||||||
| ISBN: 978-1-4799-6575-5 |
| Record 45 of 86 |
| Title: Parameter Estimation Of Digital Communication Signal |
| Author(s): Shen, C (Shen, Chao); Gao, W (Gao, Wei); Song, ZX (Song, Zongxi); Yao, T (Yao, Tong); Li, B (Li, Bin) |
| Book Group Author(s): IEEE |
| Source: PROCEEDINGS OF 2014 IEEE WORKSHOP ON ADVANCED RESEARCH AND TECHNOLOGY IN INDUSTRY APPLICATIONS (WARTIA) Pages: 1080-1083 Published: 2014 |
| Abstract: Direct spread spectrum signal with high antiinterference property, It has the characteristics of pseudo noise. Research on direct spread spectrum signal parameter estimation has important practical significance. According to the transmission characteristics of direct spread spectrum signal, using the time domain correlation method to estimate pn code period and using the frequency domain smooth periodogram estimate chip rate, and using matrix decomposition method to restore the pseudo- code sequence, completed parameter estimation of direct spread spectrum signal. |
| Accession Number: WOS:000399140300288 |
| Conference Title: IEEE Workshop on Advanced Research and Technology in Industry Applications (WARTIA) |
| Conference Date: SEP 29-30, 2014 |
| Conference Location: Ottawa, CANADA |
| Conference Sponsors: IEEE |
| ISBN: 978-1-4799-6989-0 |
| Record 46 of 86 | |||||||||||||||
| Title: Novel space communication technology based on modulated x-ray source | |||||||||||||||
| Author(s): Sheng, LZ (Sheng Li-zhi); Zhao, BS (Zhao Bao-sheng); Liu, YA (Liu Yong-an) | |||||||||||||||
| Edited by: Morawe C; Khounsary AM; Goto S | |||||||||||||||
| Source: ADVANCES IN X-RAY/EUV OPTICS AND COMPONENTS IX Book Series: Proceedings of SPIE Volume: 9207 Article Number: 920716 DOI: 10.1117/12.2062712 Published: 2014 | |||||||||||||||
| Abstract: A novel space communication method is presented in this paper based on X-ray photons. As a result of its short wavelength and great penetrability, X-ray has no attenuation for transmission in space when its photon energy is more than 10keV (lambda<0.1nm). Thus a communication technology of long distance signal transmission in space can be achieved with smaller volume, lower weight and lower power. Therefore, X-ray communication (XCOM) is especially valuable to the deep space missions, which will be able to realize higher data rates, smaller SWAP than with RF and laser communications. Using X-ray photons as information carrier will not only be a good complement to laser and RF communications, but will also have unique applications when RF and laser signals are not available like the spacecraft's re-entering to the earth. High-speed modulation and high-sensitivity detection of X-rays are two major technical issues which should be addressed in order for the X-ray communication to take place. A Grid-controlled Modulated X-ray tube (GMXT) is proposed and developed as X-ray transmitter. One or more specially designed grid electrodes are added to the traditional X-ray tube to modulate the electrons. The communication signal is coded and applied to the modulated grid electrode, and then the corresponding X-ray signals are generated and sent out. X-ray detector based on micro-channel plate(MCP) is used as communication receiver because of its high temporal resolution. An audio communication experiment system based on XCOM is setup in laboratory including the X-ray transmitter and the receiver. X-ray communication is successfully demonstrated and the communication speed reaches 64 kilobits per second in a vacuum tube of 6 meters long. As a new concept of space communication, X-ray communication will have more important scientific significance and application prospects when technologies for X-ray modulation and detection are further developed. | |||||||||||||||
| Accession Number: WOS:000343877600036 | |||||||||||||||
| Conference Title: Conference on Advances in X-Ray/EUV Optics and Components IX held as part of the SPIE 2014 International Symposium on Optics + Photonics | |||||||||||||||
| Conference Date: AUG 18-20, 2014 | |||||||||||||||
| Conference Location: San Diego, CA | |||||||||||||||
| Conference Sponsors: SPIE | |||||||||||||||
| Author Identifiers: | |||||||||||||||
| |||||||||||||||
| ISSN: 0277-786X | |||||||||||||||
| ISBN: 978-1-62841-234-5 |
| Record 47 of 86 |
| Title: Fast Circle Detection Based on Improved Randomized Hough Transform |
| Author(s): Shi, DC (Shi Dongchen); Zhang, B (Zhang Bo); Wang, N (Wang Ning) |
| Edited by: Luo X; Giessen H |
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: SMART STRUCTURES AND MATERIALS FOR MANUFACTURING AND TESTING Book Series: Proceedings of SPIE Volume: 9285 Article Number: 92850H DOI: 10.1117/12.2068644 Published: 2014 |
| Abstract: To solve the problem of a large amount of invalid sample and accumulations yielded by random sampling when randomized hough transform(RHT) is used to detect circles in complex images processing, an new improved arithmetic for circle detection is developed in this paper. It not only uses gradient direction information to determine whether the three sampling points should be accumulated or not, but also uses the regular hexagon window to narrow the searching range of pixels to improve the operating speed. The problem of invalid sampling and accumulations and multi-circle detection is well solved. The experiment results show that this algorithm has higher speed, smaller storage and better detection performance. |
| Accession Number: WOS:000344547600017 |
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Smart Structures and Materials for Manufacturing and Testing |
| Conference Date: APR 26-29, 2014 |
| Conference Location: Harbin, PEOPLES R CHINA |
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE |
| ISSN: 0277-786X |
| eISSN: 1996-756X |
| ISBN: 978-1-62841-360-1 |
| Record 48 of 86 |
| Title: Modeling and analysis of ductility of brittle materials using indentation method |
| Author(s): Sun, GY (Sun Guoyan); Lu, Z (Lu Zhe); Bai, JM (Bai Jianming); Yu, FS (Yu Fangsu) |
| Edited by: Yang L; Ruch E; Li S |
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: ADVANCED OPTICAL MANUFACTURING TECHNOLOGIES Book Series: Proceedings of SPIE Volume: 9281 Article Number: 928122 DOI: 10.1117/12.2069591 Published: 2014 |
| Abstract: Nowadays, many optical elements are fabricated by means of glass molding using hard and brittle inserts such as Silicon Carbide (SiC) and Silicon Nitride (Si3N4). However, for those hard-to-machine materials, the most feasible solution is still with ultra-precision grinding and following polishing. Hence, it is necessary and meaningful to study their plastic properties for the development of optical fabrication and ultra-precision manufacturing process. However, the conventional methods including compression test and indentation fracture mechanics are not sufficient to obtain the accurate parameters and still lack of reliable supporting of the machining process. To solve this problem, this paper presents a novel way to correlate the plastic properties to the indentation data using dimensional analysis for the two sorts of hard and brittle materials of SiC and Si3N4. Through integrating the data obtained by the indentation tests and the modeling method presented in this paper, stress-strain behavior yield stress sigma(y) yield strain epsilon(y) and strain hardening exponent n could be determined. The processing performance of these two materials reflected by the above parameters are consistent with the conclusions drawing from the indentation crack development under varying loads during the indentation test, which verifies the effectiveness and feasibility of the presented modeling method. |
| Accession Number: WOS:000343094700072 |
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Advanced Optical Manufacturing Technologies |
| Conference Date: APR 26-29, 2014 |
| Conference Location: Harbin, PEOPLES R CHINA |
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE |
| ISSN: 0277-786X |
| eISSN: 1996-756X |
| ISBN: 978-1-62841-356-4 |
| Record 49 of 86 | ||||||
| Title: Prediction of Welding Residual Stress by Using Thermo-Metallurgical-Mechanical Constitute Model | ||||||
| Author(s): Sun, YJ (Sun, Yujie); Lu, Y (Lu, Yu); Xu, J (Xu, Jian); Shi, CM (Shi, Chunming) | ||||||
| Edited by: Kim YH; Yarlagadda P | ||||||
| Source: RESEARCH IN MATERIALS AND MANUFACTURING TECHNOLOGIES, PTS 1-3 Book Series: Advanced Materials Research Volume: 835-836 Pages: 791-+ DOI: 10.4028/www.scientific.net/AMR.834-836.791 Published: 2014 | ||||||
| Abstract: The objective of this paper is to investigate the effects of solid-state phase transformation on welding residual stress in high stress low alloy steel. In this study, based on commercial finite element software, a sequentially coupled thermal, metallurgical, mechanical plane strain finite element model is developed. The main effort is to develop a series of subroutines which consider the heat transfer from welding arc and numerical implementation of a thermo-metallurgical-mechanical constitutes equation. The effectiveness of developed computational method is confirmed by a butt welding simulation. Simulation of butt welding demonstrates that the distribution pattern of longitudinal residual stresses perpendicular to weld centerline at the upper surface of weldment has two peaks and transformation plasticity has significant effect on the evolution of residual stress. | ||||||
| Accession Number: WOS:000336634900153 | ||||||
| Conference Title: 3rd International Conference on Materials and Products Manufacturing Technology (ICMPMT 2013) | ||||||
| Conference Date: SEP 25-26, 2013 | ||||||
| Conference Location: Guangzhou, PEOPLES R CHINA | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 1022-6680 | ||||||
| ISBN: 978-3-03785-916-2 |
| Record 50 of 86 | |||||||||
| Title: Double-mode Electrostatic Dispersive Prism for Compressing Electron Pulse | |||||||||
| Author(s): Wang, C (Wang, C.); Kang, Y (Kang, Y.) | |||||||||
| Edited by: Zhou Z | |||||||||
| Source: INTERNATIONAL SYMPOSIUM ON PHOTONICS AND OPTOELECTRONICS 2014 Book Series: Proceedings of SPIE Volume: 9233 Article Number: 923327 DOI: 10.1117/12.2064943 Published: 2014 | |||||||||
| Abstract: The generalized theory of double-mode electrostatic dispersing prism for time-domain compressing electron pulse is presented. The fundamental difference between the two modes of o mode and e mode lies in the dispersive dependence of electron's time of flight on its initial kinetic energy at prism entrance: the electrons with higher initial axial energy definitely have longer time of flight for o mode, while not the case for e mode, which results from the electron pulse's U-shaped motion in the prism. The dispersive dependence of time of flight constitutes the mechanism of electron pulse compression for each mode. An example is given to demonstrate the issue of parameter choosing for the prism and to verify its tunable performance of electron pulse compression. | |||||||||
| Accession Number: WOS:000343093000079 | |||||||||
| Conference Title: International Symposium on Photonics and Optoelectronics | |||||||||
| Conference Date: AUG 22-24, 2014 | |||||||||
| Conference Location: Suzhou, PEOPLES R CHINA | |||||||||
| Conference Sponsors: Wuhan Univ, Ningbo Univ, Tianjin Univ | |||||||||
| Author Identifiers: | |||||||||
| |||||||||
| ISSN: 0277-786X | |||||||||
| eISSN: 1996-756X | |||||||||
| ISBN: 978-1-62841-287-1 |
| Record 51 of 86 | |||||||||
| Title: Research on Color Constancy Computation Based on YCbCr Color Space and Gray Surface | |||||||||
| Author(s): Wang, H (Wang, Hong); Yang, JF (Yang, Jianfeng); Xue, B (Xue, Bin); Yan, XT (Yan, Xingtao); Liang, XF (Liang, Xiaofen) | |||||||||
| Edited by: Sharma G; Zhou F | |||||||||
| Source: INTERNATIONAL SYMPOSIUM ON OPTOELECTRONIC TECHNOLOGY AND APPLICATION 2014: IMAGE PROCESSING AND PATTERN RECOGNITION Book Series: Proceedings of SPIE Volume: 9301 DOI: 10.1117/12.2070658 Published: 2014 | |||||||||
| Abstract: Color constancy is of important for many computer vision applications, such as image classification, color object recognition, object tracking and so on. But unlike the human visual system, imaging device cannot be able to compute color constant descriptors which do not vary with the color of the illuminant, so solving color constancy problem is necessary. In the calculation of color constancy, illuminant estimation is the key. Because grey surfaces can perfectly reflect the color of the scene illumination, many methods have been proposed to identify grey surfaces to estimate the illuminant. But they either rely on the camera's parameters, lacking universality, or work inaccurate in worse conditions. In order to solve these problems, in this paper, an iterative method is proposed. The quality of the proposed method is tested and compared to the previous color constancy methods on the Macbeth Chart and two data sets of synthetic and real images. Through MATLAB simulation, experimental pictures and quantitative data for performance evaluation were gotten. The simulated results show that the proposed algorithm is accurate and efficient in identification of the grey surfaces, even in worse condition. And it performs well in color constancy computation on both synthetic and real images. | |||||||||
| Accession Number: WOS:000349327100031 | |||||||||
| Conference Title: International Symposium on Optoelectronic Technology and Application (IPTA) - Image Processing and Pattern Recognition | |||||||||
| Conference Date: MAY 13-15, 2014 | |||||||||
| Conference Location: Beijing, PEOPLES R CHINA | |||||||||
| Conference Sponsors: Chinese Soc Astronaut, Photoelectron Technol Comm, China High Tech Industrializat Assoc, SPIE | |||||||||
| Author Identifiers: | |||||||||
| |||||||||
| ISSN: 0277-786X | |||||||||
| eISSN: 1996-756X | |||||||||
| ISBN: 978-1-62841-387-8 |
| Record 52 of 86 | |||||||||
| Title: Design of dual band imaging system for space debris | |||||||||
| Author(s): Wang, H (Wang Hu); Luo, JJ (Luo Jianjun); Lu, X (Lu Xin); Li, CY (Li Chunyan) | |||||||||
| Edited by: Yang L; Ruch E; Li S | |||||||||
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: ADVANCED OPTICAL MANUFACTURING TECHNOLOGIES Book Series: Proceedings of SPIE Volume: 9281 Article Number: 928114 DOI: 10.1117/12.2068442 Published: 2014 | |||||||||
| Abstract: In order to detect the space debris, a dual band imaging system for space debris was proposed. The dual band imaging system was consisted of visible imaging system and long-wave imaging system. The dual band imaging system used the primary mirror and secondary mirror together, including correction lens in every imaging system in order to balance aberration. The focal length was 1000 mm and field of view was 1.2 degrees for visible imaging system, and the focal length was 250 mm and field of view was 2.75 degrees for LWIR imaging system. Some measures were taken to make sure the less degradation of MTF for thermal distortion, such as a kind of material with good thermal property as mirror substrate to reduce surface distortion. The modulation transfer function (MTF) of dual band imaging system in condition of 20 +/- 5 degrees was analyzed, which showed a good result for user's requirement. | |||||||||
| Accession Number: WOS:000343094700040 | |||||||||
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Advanced Optical Manufacturing Technologies | |||||||||
| Conference Date: APR 26-29, 2014 | |||||||||
| Conference Location: Harbin, PEOPLES R CHINA | |||||||||
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE | |||||||||
| Author Identifiers: | |||||||||
| |||||||||
| ISSN: 0277-786X | |||||||||
| eISSN: 1996-756X | |||||||||
| ISBN: 978-1-62841-356-4 |
| Record 53 of 86 |
| Title: The Progress of Sub-pixel Imaging Methods |
| Author(s): Wang, H (Wang Hu); Wen, DS (Wen Desheng) |
| Edited by: OjedaCastaneda J; Han S; Jia P; Fang J; Fan D; Qian L; Gu Y; Yan X |
| Source: SELECTED PAPERS FROM CONFERENCES OF THE PHOTOELECTRONIC TECHNOLOGY COMMITTEE OF THE CHINESE SOCIETY OF ASTRONAUTICS: OPTICAL IMAGING, REMOTE SENSING, AND LASER-MATTER INTERACTION 2013 Book Series: Proceedings of SPIE Volume: 9142 Article Number: 91420K DOI: 10.1117/12.2054205 Published: 2014 |
| Abstract: This paper reviews the Sub-pixel imaging technology principles, characteristics, the current development status at home and abroad and the latest research developments. As Sub-pixel imaging technology has achieved the advantages of high resolution of optical remote sensor, flexible working ways and being miniaturized with no moving parts. The imaging system is suitable for the application of space remote sensor. Its application prospect is very extensive. It is quite possible to be the research development direction of future space optical remote sensing technology. |
| Accession Number: WOS:000334347800019 |
| Conference Title: International Conference on Frontiers in Optical Imaging Technology and Application |
| Conference Date: OCT 20-29, 2013 |
| Conference Location: Suzhou, PEOPLES R CHINA |
| Conference Sponsors: Chinese Soc Astronaut, Photoelectron Technol Profess Comm, China Ordnance Soc, Educ & Training Dept |
| ISSN: 0277-786X |
| ISBN: 978-1-62841-093-8 |
| Record 54 of 86 | ||||||||||||
| Title: A New Subpixel Imaging Method for Image Super Resolution | ||||||||||||
| Author(s): Wang, JH (Wang, Jihong); Zhou, ZF (Zhou, Zuofeng); Zhang, J (Zhang, Jian); Cao, JZ (Cao, Jianzhong); Wu, QQ (Wu, Qingquan); Fan, XM (Fan, Xinming); Gong, ZD (Gong, Zhendong); Zhao, B (Zhao, Bing) | ||||||||||||
| Book Group Author(s): IEEE | ||||||||||||
| Source: 2013 INTERNATIONAL CONFERENCE ON INFORMATION SCIENCE AND CLOUD COMPUTING (ISCC) Pages: 113-117 DOI: 10.1109/ISCC.2013.28 Published: 2014 | ||||||||||||
| Abstract: The subpixel imaging technique for image super resolution can get a higher resolution image from two low resolution images which are observed from two linear array CCDs staggered half pixel both along the flight direction and perpendicular direction. In this paper, an adaptive weight interpolation method which considers the Euclidean distance information from two low resolution images for different size interpolation window is proposed. Compared with the traditional interpolation method, the experiment results show the effectiveness of the proposed method. | ||||||||||||
| Accession Number: WOS:000356764500018 | ||||||||||||
| Conference Title: International Conference on Information Science and Cloud Computing (ISCC) | ||||||||||||
| Conference Date: DEC 07-08, 2013 | ||||||||||||
| Conference Location: Guangzhou, PEOPLES R CHINA | ||||||||||||
| Conference Sponsors: IEEE Reliabil Soc, IEEE Comp Soc | ||||||||||||
| Author Identifiers: | ||||||||||||
| ||||||||||||
| ISBN: 978-1-4799-4967-0 |
| Record 55 of 86 | ||||||
| Title: An Improved Super-Resolution Reconstruction Algorithm Based on Regularization | ||||||
| Author(s): Wang, S (Wang, Shuang); Hu, BL (Hu, Bingliang); Dong, XK (Dong, Xiaokun); Yan, XT (Yan, Xingtao) | ||||||
| Book Group Author(s): IEEE | ||||||
| Source: PROCEEDINGS OF 2013 INTERNATIONAL CONFERENCE ON INFORMATION SCIENCE AND CLOUD COMPUTING COMPANION (ISCC-C) Pages: 716-721 DOI: 10.1109/ISCC-C.2013.44 Published: 2014 | ||||||
| Abstract: The traditional regularized super-resolution (SR) algorithms can reconstruct the high-resolution (HR) image to some extent. But the high frequency information of the image will lose seriously and the edges and details will become blurred. This paper presents an improved regularized SR algorithm. Firstly, a new interpolation algorithm is used to obtain the initial value of the HR image. Secondly, the trilateral filter is adopted as the regularization term to preserve the edge and details. Finally, the steepest descent method is taken as the iterative algorithm to gain the optimum solution. Simulated experiments are presented including the comparison with some existing reconstruction algorithms. Those results show that the proposed algorithm performs better than others. Furthermore, the edges and details of the image are well preserved. | ||||||
| Accession Number: WOS:000393054200117 | ||||||
| Conference Title: International Conference on Information Science and Cloud Computing Companion (ISCC-C) | ||||||
| Conference Date: DEC 07-08, 2013 | ||||||
| Conference Location: Guangzhou, PEOPLES R CHINA | ||||||
| Conference Sponsors: IEEE Reliabil Soc, IEEE Comp Soc, IEEE, Guangzhou Univ | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISBN: 978-1-4799-5245-8 |
| Record 56 of 86 | |||||||||
| Title: The Compensation of Y waveguide temperature drifts in FOG with the thermal resistor | |||||||||
| Author(s): Wang, YL (Wang, Yingli); Ren, LY (Ren, Liyong); Xu, JT (Xu, Jintao); Liang, J (Liang, Jian); Kang, MH (Kang, Menghua); Ren, KL (Ren, Kaili); Shi, NB (Shi, Nianbao) | |||||||||
| Edited by: Cong H; Yu B; Lu X | |||||||||
| Source: FRONTIERS IN MICRO-NANO SCIENCE AND TECHNOLOGY Book Series: Advanced Materials Research Volume: 924 Pages: 336-342 DOI: 10.4028/www.scientific.net/AMR.924.336 Published: 2014 | |||||||||
| Abstract: The lithium niobate integrated optical phase modulator(Y waveguide) is the key device in the digital closed-loop fiber optic gyroscope. However, the half-wave voltage of the lithium niobate changes with the environment temperature, which produces the phase bias drift and ultimately decreases the accuracy of FOG. In this manuscript, the thermal resistor is introduced in the amplification part in the driving circuits of Y waveguide. Due to the characteristic of the thermal resistor, the magnitude of driving voltage on Y waveguide changed with temperature to compensate the electro-optic effect's temperature drift of the lithium niobate. This method was proved to improve the performance of fiber optic gyroscopes conveniently in experiment. | |||||||||
| Accession Number: WOS:000349279200051 | |||||||||
| Conference Title: 12th China International Nanoscience and Technology Symposium, Chengdu and the Nano-Products Exposition | |||||||||
| Conference Date: OCT 27-31, 2013 | |||||||||
| Conference Location: Chengdu, PEOPLES R CHINA | |||||||||
| Conference Sponsors: Chinese Soc Micro Nano Technol, IEEE Nanotechnol Council | |||||||||
| Author Identifiers: | |||||||||
| |||||||||
| ISSN: 1022-6680 | |||||||||
| ISBN: 978-3-03835-056-9 |
| Record 57 of 86 | ||||||||||||
| Title: Research on Measurement and Correction of a Fish-eye Image Distortion | ||||||||||||
| Author(s): Wang, ZF (Wang, Zefeng); Lei, YJ (Lei, Yangjie); Zhang, Z (Zhang, Zhi); Zhang, ZH (Zhang, Zhaohui); Zhang, H (Zhang, Hui); Huang, JJ (Huang, Jijiang); Yi, B (Yi, Bo); Liao, JW (Liao, Jiawen) | ||||||||||||
| Edited by: Zhang Y; Gao W | ||||||||||||
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTICAL TEST AND MEASUREMENT TECHNOLOGY AND EQUIPMENT Book Series: Proceedings of SPIE Volume: 9282 Article Number: 928214 DOI: 10.1117/12.2068149 Published: 2014 | ||||||||||||
| Abstract: Fisheye lenses have the advantages of short focal length and large field of view. However, by using the "non-similar" imaging principle, they artificially introduce a large barrel distortion. In order to improve the quality of the images correction of distortion is required. This article analyzes the polar distortion correction model, raised a simple distortion coefficient calibration method and the use of bilinear interpolation method for gray level interpolation. Compared to other methods, this method is easier to reinforce and achieves high accuracy, and it can be easily implemented in the hardware system. At the end of the paper we introduced a device correction for a fisheye CCD camera. Based on the original data, a distortion correction model is established. In order to minimize the error, the correction was divided into three sections, and the image is well recovered. | ||||||||||||
| Accession Number: WOS:000357259700039 | ||||||||||||
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optical Test and Measurement Technology and Equipment | ||||||||||||
| Conference Date: APR 26-29, 2014 | ||||||||||||
| Conference Location: Harbin, PEOPLES R CHINA | ||||||||||||
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE | ||||||||||||
| Author Identifiers: | ||||||||||||
| ||||||||||||
| ISSN: 0277-786X | ||||||||||||
| ISBN: 978-1-62841-357-1 |
| Record 58 of 86 |
| Title: An improved method of edge detection based on the mean shift algorithm |
| Author(s): Wei, LX (Wei, Laixing); Liu, B (Liu, Bo); Mou, J (Mou, Jiao) |
| Edited by: Jiang Y; Yu J; Kippelen B |
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTOELECTRONICS MATERIALS AND DEVICES FOR SENSING AND IMAGING Book Series: Proceedings of SPIE Volume: 9284 Article Number: 928412 DOI: 10.1117/12.2069468 Published: 2014 |
| Abstract: This paper proposes an improved method of edge detection based on the mean shift algorithm. A pixel of an image calculated by the mean shift algorithm eventually converges to a peak point of probability density of the image. The pixel which is farther from the peak point has a greater mean shift vector and higher probability to be an edge pixel. The gradient of the mean shift vector of an edge pixel is a local maximum. During the mean shift iterations, the mean shift vector decreases by steps. Therefore, the vector of the first step is representative, while it is unnecessary to calculate each pixel to its convergence. This reduces the amount of computation and promotes the efficiency of the algorithm in a large extent. First, the image is smoothed by the mean shift filter, and the gradient of the mean shift vector is computed. Then, the local maximum is found by using non-maxima suppression on the gradient, which thins the edges detected Finally, dual-threshold is used to detect and link edges. The edges detected have more accuracy and continuity. Experimental results show that the proposed method outperforms the conventional methods while suppressing noise and preserving edges. |
| Accession Number: WOS:000343091100038 |
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optoelectronics Materials and Devices for Sensing and Imaging |
| Conference Date: APR 26-29, 2014 |
| Conference Location: Harbin, PEOPLES R CHINA |
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE |
| ISSN: 0277-786X |
| ISBN: 978-1-62841-359-5 |
| Record 59 of 86 | ||||||
| Title: A Novel Real-Time Method for High Dynamic Range Image Tone Mapping | ||||||
| Author(s): Wu, QQ (Wu, Qingquan); Zhou, ZF (Zhou, Zuofeng); Leng, HB (Leng, Hanbing); Cao, JZ (Cao, Jianzhong); Wang, JH (Wang, Jihong); Gong, ZD (Gong, Zhendong); Fan, XM (Fan, Xinming); Guo, HN (Guo, Huinan) | ||||||
| Edited by: Xu G; Qiao Y; Wu X | ||||||
| Source: 2014 4TH IEEE INTERNATIONAL CONFERENCE ON INFORMATION SCIENCE AND TECHNOLOGY (ICIST) Book Series: International Conference on Information Science and Technology Pages: 433-436 Published: 2014 | ||||||
| Abstract: Tone-mapping technique which can convert high dynamic range (HDR) to low dynamic range (LDR) images provides accurately visualization of HDR images on standard LDR displays. Most of the existing tone-mapping method could not realize real time processing while preserving good visualization. Utilizing an adaptive three-section lookup table, this paper proposes an effective, high quality, real time technique to convert 12-bit images to 8-bit image which can preserve abundant details and high contrast simultaneously. Experiment results show that this method can improve the weak signals of the image greatly, and the low luminance details can be observed distinctly on an 8-bit monitor. | ||||||
| Accession Number: WOS:000364968700103 | ||||||
| Conference Title: 4th IEEE International Conference on Information Science and Technology (ICIST) | ||||||
| Conference Date: APR 26-28, 2014 | ||||||
| Conference Location: Shenzhen, PEOPLES R CHINA | ||||||
| Conference Sponsors: IEEE, IEEE Beijing Sect, Chinese Acad Sci, Shenzhen Inst Adv Technol, Chinese Univ Hong Kong, Chinese Acad Engn, Tongji University | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 2164-4357 | ||||||
| ISBN: 978-1-4799-4808-6 |
| Record 60 of 86 |
| Title: Lightweight design of the rectangular mirror using topology optimization |
| Author(s): Xiang, M (Xiang Meng); Li, F (Li Fu) |
| Edited by: Jiang W; Cho MK; Wu F |
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES Book Series: Proceedings of SPIE Volume: 9280 Article Number: 928010 DOI: 10.1117/12.2067871 Published: 2014 |
| Abstract: That minimizing the mass of space optical remote sensor at the same time guaranteeing of structural rigidity and surface shape accuracy, became a new critical research topic. This paper achieves detailed design of meniscus rectangular lens body structure by taking the choice of materials, design of supporting structure and lightweight form of mirror into account. And we established lightweight concrete of the mirror under self-weight by the method of topological optimization design. For the optimization, we used a 3-D model of the rectangular mirror and calculated based on that making minimum weight of the mirror as an objective function constrained by the displacement of the mirror surface. Finally finite element analysis method was adopted to get the optimization results analyzed and compared with the traditional triangular lightweight model. Analysis results prove that: the new mirror is superior to the traditional model in surface accuracy and structural rigidity, PV value, RMS value and the lightweight rate. With enough high dynamic-static stiffness and thermal stability, this kind of mirror can meet the demand under the self-weight and the random vibration environment respectively. So this article puts forward a new idea in the lightweight design of rectangular mirror. |
| Accession Number: WOS:000344602300035 |
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Large Mirrors and Telescopes |
| Conference Date: APR 26-29, 2014 |
| Conference Location: Harbin, PEOPLES R CHINA |
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE |
| ISSN: 0277-786X |
| ISBN: 978-1-62841-355-7 |
| Record 61 of 86 |
| Title: The design method of CGH for testing the Φ404, F2 primary mirror |
| Author(s): Xie, N (Xie Nian); Duan, XT (Duan Xueting); Li, H (Li Hua) |
| Edited by: Jiang W; Cho MK; Wu F |
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES Book Series: Proceedings of SPIE Volume: 9280 Article Number: 92800T DOI: 10.1117/12.2068031 Published: 2014 |
| Abstract: In order to accurately test shape quality of the large diameter aspherical mirror, a kind of binary optical element called Computer generated holograms (CGHs) are widely used. The primary role of the CGHs is to generate any desired wavefronts to realize phase compensation. In this paper, the CGH design principle and design process are reviewed at first. Then an optical testing system for testing the aspheric mirror includes a computer generated hologram (CGH) and an imaging element (IE) is disposed. And an optical testing system only concludes a CGH is proposed too. The CGH is designed for measurement of an aspheric mirror (diameter=404mm, F-number=2). Interferometric simulation test results of the aspheric mirror show that the whole test system obtains the demanded high accuracy. When combined the CGH with an imaging element in the Aspheric Compensator, the smallest feature in the CGH should be decreased. The CGH can also be used to test freeform surface with high precision, it is of great significance to the development of the freeform surface. |
| Accession Number: WOS:000344602300028 |
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Large Mirrors and Telescopes |
| Conference Date: APR 26-29, 2014 |
| Conference Location: Harbin, PEOPLES R CHINA |
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE |
| ISSN: 0277-786X |
| ISBN: 978-1-62841-355-7 |
| Record 62 of 86 | ||||||
| Title: Light Flow Model of Coded Aperture Snapshot Spectral Imager | ||||||
| Author(s): Xie, PY (Xie, Peiyue); Yang, JF (Yang, Jianfeng); Xue, B (Xue, Bin); Wang, H (Wang, Hong); Song, YS (Song, Yansong) | ||||||
| Edited by: Rolland JP; Yan C; Kim DW; Ma W; Zheng L | ||||||
| Source: INTERNATIONAL SYMPOSIUM ON OPTOELECTRONIC TECHNOLOGY AND APPLICATION 2014: IMAGING SPECTROSCOPY; AND TELESCOPES AND LARGE OPTICS Book Series: Proceedings of SPIE Volume: 9298 Article Number: 92980C DOI: 10.1117/12.2070581 Published: 2014 | ||||||
| Abstract: Coded aperture snapshot spectral imager (CASSI) based on compressed sensing can capture a three-dimensional (3-D) data cube information in one snapshot without scanning, so it is a kind of novel spectral imaging technique with good prospects. In this paper, the data flow procession of two kind of CASSI were studied, which similarities and differences were depicted. The basic principle of the encoded representation of both spectral information and 2-D spatial information of a scene were presented. The numerical estimation techniques based on the compressive sensing theory were applied to reconstruct 3-D data cube. | ||||||
| Accession Number: WOS:000350337200012 | ||||||
| Conference Title: International Symposium on Optoelectronic Technology and Application (IPTA) - Imaging Spectroscopy and Telescopes and Large Optics | ||||||
| Conference Date: MAY 13-15, 2014 | ||||||
| Conference Location: Beijing, PEOPLES R CHINA | ||||||
| Conference Sponsors: Chinese Soc Astronaut, Photoelectron Technol Comm, China High Tech Industrializat Assoc, SPIE | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0277-786X | ||||||
| eISSN: 1996-756X | ||||||
| ISBN: 978-1-62841-384-7 |
| Record 63 of 86 | ||||||
| Title: A new infrared thermal design based on GWIR uncooled detector | ||||||
| Author(s): Xie, QS (Xie, Qingsheng); Yi, B (Yi, Bo); Liu, W (Liu, Wei); Duan, CP (Duan, Chengpeng); Chen, YH (Chen, Yaohong) | ||||||
| Edited by: Huang XY; Zhu XB; Xu KL; Wu JH | ||||||
| Source: MODERN TECHNOLOGIES IN MATERIALS, MECHANICS AND INTELLIGENT SYSTEMS Book Series: Advanced Materials Research Volume: 1049 Pages: 1249-1252 DOI: 10.4028/www.scientific.net/AMR.1049-1050.1249 Published: 2014 | ||||||
| Abstract: The infrared detector is the kernel of an infrared thermal imager. Usually it is the most expensive device. This paper describes a new infrared thermal design, based on an uncooled infrared detector with high performance and low price. It describes the specifications of the infrared detector and illustrates detailed the circuit to driver the infrared detector, include pivotal functions like TEC control and bias-voltages generation. The software to obtain image, correct non-uniformity and enhancement image is discussed also. At last, some infrared images prove the correctness of this design. | ||||||
| Accession Number: WOS:000349279100269 | ||||||
| Conference Title: 4th International Conference on Intelligent System and Applied Material (GSAM) | ||||||
| Conference Date: AUG 23-24, 2014 | ||||||
| Conference Location: Taiyuan, PEOPLES R CHINA | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 1022-6680 | ||||||
| ISBN: 978-3-03835-314-0 |
| Record 64 of 86 | ||||||
| Title: Design and experimental demonstration of variable curvature mirror having a large saggitus variation | ||||||
| Author(s): Xie, XP (Xie, Xiaopeng); Zhao, H (Zhao, Hui); Ren, GR (Ren, Guorui); Wei, JX (Wei, Jingxuan); Menke, N (Menke, Neimule) | ||||||
| Edited by: Wang Y; Du C; Sasian J; Tatsuno K | ||||||
| Source: OPTICAL DESIGN AND TESTING VI Book Series: Proceedings of SPIE Volume: 9272 Article Number: 927212 DOI: 10.1117/12.2070987 Published: 2014 | ||||||
| Abstract: Variable curvature mirror (VCM) is a simplified active optical component being capable of changing its curvature radius. Curvature radius variation within a wide range requires that the VCM should be able to generate a large saggitus variation. Besides that, the surface form accuracy should be maintained above a reasonable level. In this paper, a piezoelectric actuation based prototype VCM is designed, constructed and experimentally tested. The thickness of the K9 plane mirror is only 3mm over the full aperture of 100mm. Six piezoelectric actuators are fixed into a base plate and the head of each actuator is connected to an annular ring through the screw thread. With such a structure, the force provided by each actuator can be transformed to the mirror backside through this annular ring. With each actuator generating the same force, the curvature radius can be changed in a uniform way. At the mean time, the surface form accuracy could be adjusted one point by point to compensation asymmetric modes as well. Mathematical analysis and FEA (finite element analysis) are used together to demonstrate the theoretical correctness. Besides that, the prototype VCM is successfully constructed and experiments have been carried out to give a quantitative assessment on the saggitus variation. | ||||||
| Accession Number: WOS:000349387400031 | ||||||
| Conference Title: Conference on Optical Design and Testing VI | ||||||
| Conference Date: OCT 09-10, 2014 | ||||||
| Conference Location: Beijing, PEOPLES R CHINA | ||||||
| Conference Sponsors: SPIE, Chinese Opt Soc | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0277-786X | ||||||
| eISSN: 1996-756X | ||||||
| ISBN: 978-1-62841-345-8 |
| Record 65 of 86 | ||||||||||||||||||
| Title: IMAGE SUPER-RESOLUTION USING MULTI-LAYER SUPPORT VECTOR REGRESSION | ||||||||||||||||||
| Author(s): Xu, J (Xu, Jie); Deng, C (Deng, Cheng); Gao, XB (Gao, Xinbo); Tao, DC (Tao, Dacheng); Li, XL (Li, Xuelong) | ||||||||||||||||||
| Book Group Author(s): IEEE | ||||||||||||||||||
| Source: 2014 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP) Book Series: International Conference on Acoustics Speech and Signal Processing ICASSP DOI: 10.1109/ICASSP.2014.6854715 Published: 2014 | ||||||||||||||||||
| Abstract: Existing support vector regression (SVR) based image super-resolution (SR) methods always utilize single layer SVR model to reconstruct source image, which are incapable of restoring the details and reduce the reconstruction quality. In this paper, we present a novel image SR approach, where a multi-layer SVR model is adopted to describe the relationship between the low resolution (LR) image patches and the corresponding high resolution (HR) ones. Besides, considering the diverse content in the image, we introduce pixel-wise classification to divide pixels into different classes, such as horizontal edges, vertical edges and smooth areas, which is more conductive to highlight the local characteristics of the image. Moreover, the input elements to each SVR model are weighted respectively according to their corresponding output pixel's space positions in the HR image. Experimental results show that, compared with several other learning-based SR algorithms, our method gains high-quality performance. | ||||||||||||||||||
| Accession Number: WOS:000343655305167 | ||||||||||||||||||
| Conference Title: IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) | ||||||||||||||||||
| Conference Date: MAY 04-09, 2014 | ||||||||||||||||||
| Conference Location: Florence, ITALY | ||||||||||||||||||
| Conference Sponsors: IEEE, IEEE Signal Proc Soc | ||||||||||||||||||
| Author Identifiers: | ||||||||||||||||||
| ||||||||||||||||||
| ISSN: 1520-6149 | ||||||||||||||||||
| ISBN: 978-1-4799-2893-4 |
| Record 66 of 86 | ||||||||||||
| Title: Monte Carlo Simulation of HERD Calorimeter | ||||||||||||
| Author(s): Xu, M (Xu, M.); Chen, GM (Chen, G. M.); Dong, YW (Dong, Y. W.); Lu, JG (Lu, J. G.); Quan, Z (Quan, Z.); Wang, L (Wang, L.); Wang, ZG (Wang, Z. G.); Wu, BB (Wu, B. B.); Zhang, SN (Zhang, S. N.) | ||||||||||||
| Edited by: Takahashi T; DenHerder JWA; Bautz M | ||||||||||||
| Source: SPACE TELESCOPES AND INSTRUMENTATION 2014: ULTRAVIOLET TO GAMMA RAY Book Series: Proceedings of SPIE Volume: 9144 Article Number: 91443S DOI: 10.1117/12.2055319 Published: 2014 | ||||||||||||
| Abstract: The High Energy cosmic-Radiation Detection (HERD) facility onboard China's Space Station is planned for operation starting around 2020 for about 10 years. It is designed as a next generation space facility focused on indirect dark matter search, precise cosmic ray spectrum and composition measurements up to the knee energy, and high energy gamma-ray monitoring and survey. The calorimeter plays an essential role in the main scientific objectives of HERD. A 3-D cubic calorimeter filled with high granularity crystals as active material is a very promising choice for the calorimeter. HERD is mainly composed of a 3-D calorimeter (CALO) surrounded by silicon trackers (TK) from all five sides except the bottom. CALO is made of 9261 cubes of LYSO crystals, corresponding to about 55 radiation lengths and 3 nuclear interaction lengths, respectively. Here the simulation results of the performance of CALO with GEANT4 and FLUKA are presented: 1) the total absorption CALO and its absorption depth for precise energy measurements (energy resolution: 1% for electrons and gammarays beyond 100 GeV, 20% for protons from 100 GeV to 1 PeV); 2) its granularity for particle identification (electron/proton separation power better than 10(-5)); 3) the homogenous geometry for detecting particles arriving from every unblocked direction for large effective geometrical factor (>3 m(2)sr for electron and diffuse gammarays, >2 m(2)sr for cosmic ray nuclei); 4) expected observational results such as gamma-ray line spectrum from dark matter annihilation and spectrum measurement of various cosmic ray chemical components. | ||||||||||||
| Accession Number: WOS:000354529100114 | ||||||||||||
| Conference Title: Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray | ||||||||||||
| Conference Date: JUN 22-26, 2014 | ||||||||||||
| Conference Location: Montreal, CANADA | ||||||||||||
| Conference Sponsors: SPIE | ||||||||||||
| Author Identifiers: | ||||||||||||
| ||||||||||||
| ISSN: 0277-786X | ||||||||||||
| ISBN: 978-0-8194-9612-6 |
| Record 67 of 86 |
| Title: An improved Corner Detection Algorithm for Image Sequence |
| Author(s): Yan, MQ (Yan, Minqi); Zhang, BL (Zhang, Bianlian); Guo, M (Guo, Min); Tian, GY (Tian, Guangyuan); Liu, F (Liu, Feng); Huo, Z (Huo, Zeng) |
| Edited by: Sharma G; Zhou F |
| Source: INTERNATIONAL SYMPOSIUM ON OPTOELECTRONIC TECHNOLOGY AND APPLICATION 2014: IMAGE PROCESSING AND PATTERN RECOGNITION Book Series: Proceedings of SPIE Volume: 9301 Article Number: 93011C DOI: 10.1117/12.2071559 Published: 2014 |
| Abstract: A SUSAN corner detection algorithm for a sequence of images is proposed in this paper, The correlation matching algorithm is treated for the coarse positioning of the detection area, after that, SUSAN corner detection is used to obtain interesting points of the target. The SUSAN corner detection has been improved. For the situation that the points of a small area are often detected as corner points incorrectly, the neighbor direction filter is applied to reduce the rate of mistakes. Experiment results show that the algorithm enhances the anti-noise performance, improve the accuracy of detection. |
| Accession Number: WOS:000349327100047 |
| Conference Title: International Symposium on Optoelectronic Technology and Application (IPTA) - Image Processing and Pattern Recognition |
| Conference Date: MAY 13-15, 2014 |
| Conference Location: Beijing, PEOPLES R CHINA |
| Conference Sponsors: Chinese Soc Astronaut, Photoelectron Technol Comm, China High Tech Industrializat Assoc, SPIE |
| ISSN: 0277-786X |
| eISSN: 1996-756X |
| ISBN: 978-1-62841-387-8 |
| Record 68 of 86 |
| Title: A Low-light-level CCD camera design and implementation of low cost and large field |
| Author(s): Yan, S (Yan, Su); Li, H (Li, Hua); Wang, H (Wang, Hao); Zhou, ZF (Zhou, Zuofeng); Yan, AQ (Yan, Aqi) |
| Edited by: Ren P; Du Z |
| Source: MANUFACTURE ENGINEERING AND ENVIRONMENT ENGINEERING, VOLS 1 AND 2 Book Series: WIT Transactions on Engineering Sciences Volume: 84 Pages: 271-276 DOI: 10.2495/MEEE20130381 Published: 2014 |
| Abstract: A low-light-level CCD camera is a high-tech, involving optics, electronics, machinery, and computer science in many fields. The technology now plays a crucial role in detection of early warning, identification tracking, public security, fire alarm and applications in many other fields. But the high cost make many consumers give it up. This paper mainly expands a low-light-level CCD camera design which is low cost and large field. And this paper introduces the camera structure in electronics. Experiment results in paper are posted. |
| Accession Number: WOS:000345655000038 |
| Conference Title: International Conference on Manufacture Engineering and Environment Engineering (MEEE) |
| Conference Date: 2013 |
| Conference Location: Hong Kong, PEOPLES R CHINA |
| ISSN: 1746-4471 |
| ISBN: 978-1-84564-825-1; 978-1-84564-824-4 |
| Record 69 of 86 | ||||||
| Title: An Improved Blind Deconvolution Algorithm of Motion Blurred Image | ||||||
| Author(s): Yang, L (Yang Lei); Wang, ZF (Wang Ze-feng); Guo, HN (Guo Hui-nan); Liu, GS (Liu Guang-sen); Wang, H (Wang Hao); Tang, LN (Tang Li-nao); Yang, HT (Yang Hong-tao) | ||||||
| Edited by: Ge W | ||||||
| Source: MECHANICAL COMPONENTS AND CONTROL ENGINEERING III Book Series: Applied Mechanics and Materials Volume: 668-669 Pages: 1045-1049 DOI: 10.4028/www.scientific.net/AMM.668-669.1045 Published: 2014 | ||||||
| Abstract: An improved blind deconvolution algorithm has been proposed to tackle the image blurring caused by movement. Firstly, take the model to analyze the blurred image and identify the high-frequency of the blurred image through the reasonable pre-estimation of blind kernel function. Then, further estimate the blurring matrix K by the use of the high-frequency while the high-frequency of the blurred image and the accuracy of the blurred image matrix have been improved gradually through normalized iteration. Finally, the clear image has been gained by the use of blind matrix deconvolution. Experimental results show that by the use of this algorithm the image has better subjective visual effect. The proposed algorithm has better restoration effect on the fused motion blurred image and the natural camera motion blurred image. | ||||||
| Accession Number: WOS:000348898100227 | ||||||
| Conference Title: 3rd Asian Pacific Conference on Mechanical Components and Control Engineering (ICMCCE) | ||||||
| Conference Date: SEP 20-21, 2014 | ||||||
| Conference Location: Nankai Univ, Tianjin, PEOPLES R CHINA | ||||||
| Conference Host: Nankai Univ | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 1660-9336 | ||||||
| ISBN: 978-3-03835-312-6 |
| Record 70 of 86 | ||||||
| Title: Real-time implementation of camera positioning algorithm based on FPGA & SOPC | ||||||
| Author(s): Yang, MC (Yang Mingcao); Qiu, YH (Qiu Yuehong) | ||||||
| Edited by: Zhang Y; Gao W | ||||||
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTICAL TEST AND MEASUREMENT TECHNOLOGY AND EQUIPMENT Book Series: Proceedings of SPIE Volume: 9282 Article Number: 92822K DOI: 10.1117/12.2068208 Published: 2014 | ||||||
| Abstract: In recent years, with the development of positioning algorithm and FPGA, to achieve the camera positioning based on real-time implementation, rapidity, accuracy of FPGA has become a possibility by way of in-depth study of embedded hardware and dual camera positioning system, this thesis set up an infrared optical positioning system based on FPGA and SOPC system, which enables real-time positioning to mark points in space. Thesis completion include: (1) uses a CMOS sensor to extract the pixel of three objects with total feet, implemented through FPGA hardware driver, visible-light LED, used here as the target point of the instrument. (2) prior to extraction of the feature point coordinates, the image needs to be filtered to avoid affecting the physical properties of the system to bring the platform, where the median filtering. (3) Coordinate signs point to FPGA hardware circuit extraction, a new iterative threshold selection method for segmentation of images. Binary image is then segmented image tags, which calculates the coordinates of the feature points of the needle through the center of gravity method. (4) direct linear transformation (DLT) and extreme constraints method is applied to three-dimensional reconstruction of the plane array CMOS system space coordinates. using SOPC system on a chip here, taking advantage of dual-core computing systems, which let match and coordinate operations separately, thus increase processing speed. | ||||||
| Accession Number: WOS:000357259700091 | ||||||
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optical Test and Measurement Technology and Equipment | ||||||
| Conference Date: APR 26-29, 2014 | ||||||
| Conference Location: Harbin, PEOPLES R CHINA | ||||||
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0277-786X | ||||||
| eISSN: 1996-756X | ||||||
| ISBN: 978-1-62841-357-1 |
| Record 71 of 86 | ||||||
| Title: The precision analysis of continuous zoom lens in airborne electro-optical pod | ||||||
| Author(s): Yang, XX (Yang Xiao-xu); Li, DW (Li Da-wei); Han, JF (Han Jun-feng); Dong, Q (Dong Qiang); Huang, W (Huang Wei); Wei, Y (Wei Yu) | ||||||
| Edited by: OjedaCastaneda J; Han S; Jia P; Fang J; Fan D; Qian L; Gu Y; Yan X | ||||||
| Source: SELECTED PAPERS FROM CONFERENCES OF THE PHOTOELECTRONIC TECHNOLOGY COMMITTEE OF THE CHINESE SOCIETY OF ASTRONAUTICS: OPTICAL IMAGING, REMOTE SENSING, AND LASER-MATTER INTERACTION 2013 Book Series: Proceedings of SPIE Volume: 9142 Article Number: 91421I DOI: 10.1117/12.2054095 Published: 2014 | ||||||
| Abstract: In the research of electro-optical pod, this paper propose a mission requirements that continuous zoom lens system is using for measuring angle in the process. This paper analyzes the influence of angle measurement accuracy from focal length and optical axis errors in the process of continuous zoom, and given the mathematical model of the influence of angle measurement accuracy. The simulation analysis indicated that Angle measuring accuracy is affected by the process of continuous zoom. The simulation analysis results have certain instructive significance to engineering practice. | ||||||
| Accession Number: WOS:000334347800053 | ||||||
| Conference Title: International Seminar on Aerial Optical Remote Sensing Technology and Application | ||||||
| Conference Date: OCT 20-29, 2013 | ||||||
| Conference Location: SuZhou, PEOPLES R CHINA | ||||||
| Conference Sponsors: China Soc Astronaut, Photoelectron Technol Comm | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0277-786X | ||||||
| ISBN: 978-1-62841-093-8 |
| Record 72 of 86 | ||||||||||||||||||||||||
| Title: Experimental analysis of focal fields in laser scanning fluorescence stereomicroscopy | ||||||||||||||||||||||||
| Author(s): Yang, YL (Yang, Yanlong); Peng, T (Peng, Tong); Lei, M (Lei, Ming); Li, RZ (Li, Runze); Zhou, X (Zhou, Xing); Wu, D (Wu, Di); Yao, BL (Yao, Baoli); Ye, T (Ye, Tong) | ||||||||||||||||||||||||
| Edited by: Brown TG; Cogswell CJ; Wilson T | ||||||||||||||||||||||||
| Source: THREE-DIMENSIONAL AND MULTIDIMENSIONAL MICROSCOPY: IMAGE ACQUISITION AND PROCESSING XXI Book Series: Proceedings of SPIE Volume: 8949 Article Number: 89491R DOI: 10.1117/12.2040248 Published: 2014 | ||||||||||||||||||||||||
| Abstract: Bessel beams have been proved to have the ability to extend the depth of focus in fluorescence microscopy. But the depth discrimination was not investigated thoroughly. Following our previous work(2), we investigated focal fields of Bessel-Gauss beams at different scanning angles. We found that the central focusing lines were tilted differently at different scanning angles. This effect manifests the ability of the true perspective view in the fluorescence stereomicroscopy. | ||||||||||||||||||||||||
| Accession Number: WOS:000336804200036 | ||||||||||||||||||||||||
| Conference Title: Conference on Three-Dimensional and Multidimensional Microscopy - Image Acquisition and Processing XXI | ||||||||||||||||||||||||
| Conference Date: FEB 03-06, 2014 | ||||||||||||||||||||||||
| Conference Location: San Francisco, CA | ||||||||||||||||||||||||
| Conference Sponsors: SPIE | ||||||||||||||||||||||||
| Author Identifiers: | ||||||||||||||||||||||||
| ||||||||||||||||||||||||
| ISSN: 0277-786X | ||||||||||||||||||||||||
| eISSN: 1996-756X | ||||||||||||||||||||||||
| ISBN: 978-0-8194-9862-5 |
| Record 73 of 86 | |||||||||
| Title: Object based video synopsis | |||||||||
| Author(s): Yao, T (Yao, Tong); Xiao, MS (Xiao, Maosen); Ma, CW (Ma, Caiwen); Shen, C (Shen, Chao); Li, P (Li, Peng) | |||||||||
| Book Group Author(s): IEEE | |||||||||
| Source: PROCEEDINGS OF 2014 IEEE WORKSHOP ON ADVANCED RESEARCH AND TECHNOLOGY IN INDUSTRY APPLICATIONS (WARTIA) Pages: 1138-1141 Published: 2014 | |||||||||
| Abstract: Tens of thousands of surveillance cameras all over every corner of the world send large amounts of data 24 hours a day, but most of these videos are redundant data lacking of activity. It is time consuming to browse all of those raw data. This paper has researched object based video synopsis technology with the surveillance video of a neighborhood and an indoor surveillance video as research target, presenting all necessary activities in a short time by displaying objects concurrently, even if they originally occurred at different time. The result shows that we can create a synopsis with maximum activity while avoiding conflicts between objects as much as possible. | |||||||||
| Accession Number: WOS:000399140300303 | |||||||||
| Conference Title: IEEE Workshop on Advanced Research and Technology in Industry Applications (WARTIA) | |||||||||
| Conference Date: SEP 29-30, 2014 | |||||||||
| Conference Location: Ottawa, CANADA | |||||||||
| Conference Sponsors: IEEE | |||||||||
| Author Identifiers: | |||||||||
| |||||||||
| ISBN: 978-1-4799-6989-0 |
| Record 74 of 86 |
| Title: Research of New Materials in Sports Equipment |
| Author(s): Yi, CX (Yi, Cuixia); Yang, T (Yang, Tao) |
| Edited by: Du WJ; Ma M |
| Source: GREEN POWER, MATERIALS AND MANUFACTURING TECHNOLOGY AND APPLICATIONS III, PTS 1 AND 2 Book Series: Applied Mechanics and Materials Volume: 484-485 Pages: 84-+ DOI: 10.4028/www.scientific.net/AMM.484-485.84 Published: 2014 |
| Abstract: Sports games and sports equipment are used in a variety of fitness training devices, equipment and supplies. Sports equipment and sports are interdependent and mutually reinforcing. The popularity of sports and sports diversification makes sports equipment type, size and so on develop a lot. Similarly, sports equipment of good quality, stable performance, safe and reliable property can not only guarantee athletics competition in fair and intense circumstances, but also raise the level to facilitate movement and create the necessary material conditions. |
| Accession Number: WOS:000337004900019 |
| Conference Title: 3rd International Conference on Green Power, Materials and Manufacturing Technology and Applications |
| Conference Date: DEC 27-30, 2013 |
| Conference Location: Wuhan, PEOPLES R CHINA |
| Conference Sponsors: Yunan Univ, YNPG, Elect Power Res Inst, Huazhong Agr Univ, SW Forestry Univ, Jinan Univ, Shanghai Jiao Tong Univ, Nanyang Technol Univ, Tsinghua Univ, Hunan Inst Engn, Natl Nat Sci Fdn China, Provincial Nat Sci Fdn Hunan, Provincial Sci & Technol |
| ISSN: 1660-9336 |
| ISBN: 978-3-03785-986-5 |
| Record 75 of 86 |
| Title: Laser Spectrum Detection Methods for Substance of Mars Surface |
| Author(s): Zhang, D (Zhang, Dan); Xue, B (Xue, Bin); Zhao, YY (Zhao, Yi-yi) |
| Edited by: Rolland JP; Yan C; Kim DW; Ma W; Zheng L |
| Source: INTERNATIONAL SYMPOSIUM ON OPTOELECTRONIC TECHNOLOGY AND APPLICATION 2014: IMAGING SPECTROSCOPY; AND TELESCOPES AND LARGE OPTICS Book Series: Proceedings of SPIE Volume: 9298 Article Number: 92980F DOI: 10.1117/12.2070682 Published: 2014 |
| Abstract: The chemical element and mineral rock's abundance and distribution are the basic material of planetary geology evolution research [ 1], hence preterit detection for composition of Mars surface substance contains both elements sorts and mineral ingredients. This article introduced new ways to detect Mars elements and mineral components, Laser Induced Breakdown Spectroscopy (LIBS) and Raman Spectroscopy (RS) which have distinct advantages, such as work over a long distance, detect rapidly, accuratly and nondestructively. LIBS and RS both use laser excitation to shoot the substance of Mars exciting new wavelengths. The techniques of LIBS and RS in laboratory are mature, besides the technique of LIBS is being used in MSL (Chemcam) now and RS will be used in ExoMars. Comparing LIBS and RS's detection results with XRF and APXS, Mossbauer spectrometer, these existed Mars surface material detection instruments, and the Infrared spectrometer, Mid-IR, they have more accurate detection results. So LIBS and RS are competent for Mars surface substance detection instead of X-ray spectrometer and Mossbauer spectrometer which were already used in 'Viking 1' and 'Opportunity'. Only accurate detection results about Mars surface substance can lead to scientist's right analysis in inversing geological evolution of the planet. |
| Accession Number: WOS:000350337200015 |
| Conference Title: International Symposium on Optoelectronic Technology and Application (IPTA) - Imaging Spectroscopy and Telescopes and Large Optics |
| Conference Date: MAY 13-15, 2014 |
| Conference Location: Beijing, PEOPLES R CHINA |
| Conference Sponsors: Chinese Soc Astronaut, Photoelectron Technol Comm, China High Tech Industrializat Assoc, SPIE |
| ISSN: 0277-786X |
| eISSN: 1996-756X |
| ISBN: 978-1-62841-384-7 |
| Record 76 of 86 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Title: The High cosmic-Radiation Detection (HERD) Facility onboard China's Future Space Station | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Author(s): Zhang, SN (Zhang, S. N.); Adriani, O (Adriani, O.); Albergo, S (Albergo, S.); Ambrosi, G (Ambrosi, G.); An, Q (An, Q.); Bao, TW (Bao, T. W.); Battiston, R (Battiston, R.); Bi, XJ (Bi, X. J.); Cao, Z (Cao, Z.); Chai, JY (Chai, J. Y.); Chang, J (Chang, J.); Chen, GM (Chen, G. M.); Chen, Y (Chen, Y.); Cui, XH (Cui, X. H.); Dai, ZG (Dai, Z. G.); D'Alessandro, R (D'Alessandro, R.); Dong, YW (Dong, Y. W.); Fan, YZ (Fan, Y. Z.); Feng, CQ (Feng, C. Q.); Feng, H (Feng, H.); Feng, ZY (Feng, Z. Y.); Gao, XH (Gao, X. H.); Gargano, F (Gargano, F.); Giglietto, N (Giglietto, N.); Gou, QB (Gou, Q. B.); Guo, YQ (Guo, Y. Q.); Hu, BL (Hu, B. L.); Hu, HB (Hu, H. B.); He, HH (He, H. H.); Huang, GS (Huang, G. S.); Huang, J (Huang, J.); Huang, YF (Huang, Y. F.); Li, H (Li, H.); Li, L (Li, L.); Li, YG (Li, Y. G.); Li, Z (Li, Z.); Liang, EW (Liang, E. W.); Liu, H (Liu, H.); Liu, JB (Liu, J. B.); Liu, JT (Liu, J. T.); Liu, SB (Liu, S. B.); Liu, SM (Liu, S. M.); Liu, X (Liu, X.); Lu, JG (Lu, J. G.); Mazziotto, MN (Mazziotto, M. N.); Mori, N (Mori, N.); Orsi, S (Orsi, S.); Pearce, M (Pearce, M.); Pohl, M (Pohl, M.); Quan, Z (Quan, Z.); Ryde, F (Ryde, F.); Shi, HL (Shi, H. L.); Spillantini, P (Spillantini, P.); Su, M (Su, M.); Sun, JC (Sun, J. C.); Sun, XL (Sun, X. L.); Tang, ZC (Tang, Z. C.); Walter, R (Walter, R.); Wang, JC (Wang, J. C.); Wang, JM (Wang, J. M.); Wang, L (Wang, L.); Wang, RJ (Wang, R. J.); Wang, XL (Wang, X. L.); Wang, XY (Wang, X. Y.); Wang, ZG (Wang, Z. G.); Wei, DM (Wei, D. M.); Wu, BB (Wu, B. B.); Wu, J (Wu, J.); Wu, X (Wu, X.); Wu, XF (Wu, X. F.); Xia, JQ (Xia, J. Q.); Xiao, HL (Xiao, H. L.); Xu, HH (Xu, H. H.); Xu, M (Xu, M.); Xu, ZZ (Xu, Z. Z.); Yan, HR (Yan, H. R.); Yin, PF (Yin, P. F.); Yu, YW (Yu, Y. W.); Yuan, Q (Yuan, Q.); Zha, M (Zha, M.); Zhang, L (Zhang, L.); Zhang, L (Zhang, L.); Zhang, LY (Zhang, L. Y.); Zhang, Y (Zhang, Y.); Zhang, YJ (Zhang, Y. J.); Zhang, YL (Zhang, Y. L.); Zhao, ZG (Zhao, Z. G.) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Edited by: Takahashi T; DenHerder JWA; Bautz M | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Source: SPACE TELESCOPES AND INSTRUMENTATION 2014: ULTRAVIOLET TO GAMMA RAY Book Series: Proceedings of SPIE Volume: 9144 Article Number: 91440X DOI: 10.1117/12.2055280 Published: 2014 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Abstract: The High Energy cosmic-Radiation Detection (HERD) facility is one of several space astronomy payloads of the cosmic lighthouse program onboard China's Space Station, which is planned for operation starting around 2020 for about 10 years. The main scientific objectives of HERD are indirect dark matter search, 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 10(4) cubes of LYSO crystals, corresponding to about 55 radiation lengths and 3 nuclear interaction lengths, respectively. The top STK microstrips of seven 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 SKTs 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, 20% for protons from 100 GeV to 1 PeV; electron/proton separation power better than 10(-5); effective geometrical factors of >3 m(2) sr for electron and diffuse gamma-rays, >2 m(2) sr for cosmic ray nuclei. R&D is under way for reading out the LYSO signals with optical fiber coupled to image intensified CCD and the prototype of one layer of CALO. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accession Number: WOS:000354529100027 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Conference Title: Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Conference Date: JUN 22-26, 2014 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Conference Location: Montreal, CANADA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Conference Sponsors: SPIE | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Author Identifiers: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ISSN: 0277-786X | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| eISSN: 1996-756X | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ISBN: 978-0-8194-9612-6 |
| Record 77 of 86 |
| Title: A method which can enhance the optical -centering accuracy |
| Author(s): Zhang, XM (Zhang Xue-min); Zhang, XJ (Zhang Xue-jun); Dai, YD (Dai Yi-dan); Yu, T (Yu Tao); Duan, JY (Duan Jia-you); Li, H (Li Hua) |
| Edited by: Zhang Y; Gao W |
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTICAL TEST AND MEASUREMENT TECHNOLOGY AND EQUIPMENT Book Series: Proceedings of SPIE Volume: 9282 Article Number: 92821G DOI: 10.1117/12.2069793 Published: 2014 |
| Abstract: Optical alignment machining is an effective method to ensure the co-axiality of optical system. The co-axiality accuracy is determined by optical-centering accuracy of single optical unit, which is determined by the rotating accuracy of lathe and the optical-centering judgment accuracy. When the rotating accuracy of 0.2um can be achieved, the leading error can be ignored. An axis-determination tool which is based on the principle of auto-collimation can be used to determine the only position of centerscope is designed. The only position is the position where the optical axis of centerscope is coincided with the rotating axis of the lathe. Also a new optical-centering judgment method is presented. A system which includes the axis-determination tool and the new optical-centering judgment method can enhance the optical-centering accuracy to 0.003mm. |
| Accession Number: WOS:000357259700051 |
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optical Test and Measurement Technology and Equipment |
| Conference Date: APR 26-29, 2014 |
| Conference Location: Harbin, PEOPLES R CHINA |
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE |
| ISSN: 0277-786X |
| ISBN: 978-1-62841-357-1 |
| Record 78 of 86 |
| Title: Effects of Stitching Pattern on Diffractive Telescope Image Quality |
| Author(s): Zhang, ZF (Zhang, ZhouFeng); Xie, YJ (Xie, YongJun); Kang, FZ (Kang, FuZeng); Wang, YJ (Wang, YanJun) |
| Edited by: OjedaCastaneda J; Han S; Jia P; Fang J; Fan D; Qian L; Gu Y; Yan X |
| Source: SELECTED PAPERS FROM CONFERENCES OF THE PHOTOELECTRONIC TECHNOLOGY COMMITTEE OF THE CHINESE SOCIETY OF ASTRONAUTICS: OPTICAL IMAGING, REMOTE SENSING, AND LASER-MATTER INTERACTION 2013 Book Series: Proceedings of SPIE Volume: 9142 Article Number: 91421M DOI: 10.1117/12.2054364 Published: 2014 |
| Abstract: Diffraction image technology is an updated technology. It has more potential for developing the larger aperture and lightweight telescope than the conventional refractive and reflective optics. In order to develop a large aperture diffractive telescope, the key is to solve the problem of large aperture lens stitching. Different stitching patterns have different effects on the image quality. However, the stitching pattern for diffractive telescope is different from the conventional refractive and reflective telescope. This paper, for the first time, studies the theory of stitching pattern for diffractive telescope. On the basis of theoretical analysis, a long-wavelength infrared diffractive telescope of segmented-lens is designed and for the first time, good results through stitching experiments have been achieved. According to theoretical analysis and experiment verification, the paper gives the best stitching pattern on diffractive telescope. |
| Accession Number: WOS:000334347800057 |
| Conference Title: International Seminar on Aerial Optical Remote Sensing Technology and Application |
| Conference Date: OCT 20-29, 2013 |
| Conference Location: Suzhou, PEOPLES R CHINA |
| Conference Sponsors: China Soc Astronaut, Photoelectron Technol Comm |
| ISSN: 0277-786X |
| eISSN: 1996-756X |
| ISBN: 978-1-62841-093-8 |
| Record 79 of 86 | |||||||||||||||
| Title: CFRP variable curvature mirror used for realizing non-moving-element optical zoom imaging | |||||||||||||||
| Author(s): Zhao, H (Zhao, Hui); Fan, XW (Fan, Xuewu); Pang, ZH (Pang, Zhihai); Ren, GR (Ren, Guorui); Wang, W (Wang, Wei); Xie, YJ (Xie, Yongjie); Ma, Z (Ma, Zhen); Du, YF (Du, Yunfei); Su, Y (Su, Yu); Wei, JX (Wei, Jingxuan) | |||||||||||||||
| Edited by: Figueiro M; Lerner S; Muschaweck J; Rogers J | |||||||||||||||
| Source: INTERNATIONAL OPTICAL DESIGN CONFERENCE 2014 Book Series: Proceedings of SPIE Volume: 9293 Article Number: 929307 DOI: 10.1117/12.2069856 Published: 2014 | |||||||||||||||
| Abstract: In recent years, how to eliminate moving elements while realizing optical zoom imaging has been paid much attention. Compared with the conventional optical zooming techniques, removing moving elements would bring in many benefits such as reduction in weight, volume and power cost and so on. The key to implement non-moving-element optical zooming lies in the design of variable curvature mirror (VCM). In order to obtain big enough optical magnification, the VCM should be capable of generating a large variation of saggitus. Hence, the mirror material should not be brittle, in other words the corresponding ultimate strength should be high enough to ensure that mirror surface would not be broken during large curvature variation. Besides that, the material should have a not too big Young's modulus because in this case less force is required to generate a deformation. Among all available materials, for instance SiC, Zerodur and et. al, CFRP (carbon fiber reinforced polymer) satisfies all these requirements and many related research have proven this. In this paper, a CFRP VCM is designed, fabricated and tested. With a diameter of 100mm, a thickness of 2mm and an initial curvature radius of 1740mm, this component could change its curvature radius from 1705mm to 1760mm, which correspond to a saggitus variation of nearly 23 mu m. The work reported further proves the suitability of CFRP in constructing variable curvature mirror which could generate a large variation of saggitus. | |||||||||||||||
| Accession Number: WOS:000349402800006 | |||||||||||||||
| Conference Title: International Optical Design Conference (IODC) | |||||||||||||||
| Conference Date: JUN 23-26, 2014 | |||||||||||||||
| Conference Location: HI | |||||||||||||||
| Conference Sponsors: Opt Soc, SPIE, Amer Elements Corp, Edmund Opt Inc, Optimax Syst Inc, Rochester Precis Opt LLC, Synopsys Inc | |||||||||||||||
| Author Identifiers: | |||||||||||||||
| |||||||||||||||
| ISSN: 0277-786X | |||||||||||||||
| eISSN: 1996-756X | |||||||||||||||
| ISBN: 978-1-62841-378-6 |
| Record 80 of 86 | |||||||||||||||
| Title: CFRP variable curvature mirror being capable of generating a large variation of saggitus: prototype design and experimental demonstration | |||||||||||||||
| Author(s): Zhao, H (Zhao, Hui); Fan, XW (Fan, Xuewu); Pang, ZH (Pang, Zhihai); Ren, GR (Ren, Guorui); Wang, W (Wang, Wei); Xie, YJ (Xie, Yongjie); Ma, Z (Ma, Zhen); Du, YF (Du, Yunfei); Su, Y (Su, Yu); Wei, JX (Wei, Jingxuan); Xie, XP (Xie, Xiaopeng) | |||||||||||||||
| Edited by: Wang Y; Du C; Sasian J; Tatsuno K | |||||||||||||||
| Source: OPTICAL DESIGN AND TESTING VI Book Series: Proceedings of SPIE Volume: 9272 Article Number: 92720S DOI: 10.1117/12.2065554 Published: 2014 | |||||||||||||||
| Abstract: The key to realize non-moving-element optical zooming lies in VCM (variable curvature mirror). In order to obtain a large optical magnification, VCM should be capable of providing a large center deflection and this requires that the mirror material should be robust enough, require less force to deform and have a high ultimate strength. In this paper, CFRP (carbon-fiber-reinforced-polymer) is selected as the mirror material and a prototype VCM has been fabricated. With diameter of 100mm, thickness of 2mm and initial curvature radius of 1740mm, this VCM can provide a center deflection approaching nearly 23um, which proves the feasibility of CFRP in constructing VCM. Compared with the work reported in [Proc. of SPIE, 8725, 87250W, 2013], the center deflection obtained here becomes even larger. | |||||||||||||||
| Accession Number: WOS:000349387400024 | |||||||||||||||
| Conference Title: Conference on Optical Design and Testing VI | |||||||||||||||
| Conference Date: OCT 09-10, 2014 | |||||||||||||||
| Conference Location: Beijing, PEOPLES R CHINA | |||||||||||||||
| Conference Sponsors: SPIE, Chinese Opt Soc | |||||||||||||||
| Author Identifiers: | |||||||||||||||
| |||||||||||||||
| ISSN: 0277-786X | |||||||||||||||
| eISSN: 1996-756X | |||||||||||||||
| ISBN: 978-1-62841-345-8 |
| Record 81 of 86 | ||||||
| Title: An improved opto-digital joint transform correlator reducing the influence of defocus on image motion measurement | ||||||
| Author(s): Zhao, H (Zhao, Hui); Yi, HW (Yi, Hongwei); Wei, JX (Wei, Jingxuan); Xie, XP (Xie, Xiaopeng) | ||||||
| Edited by: Dai Q; Shimura T | ||||||
| Source: OPTOELECTRONIC IMAGING AND MULTIMEDIA TECHNOLOGY III Book Series: Proceedings of SPIE Volume: 9273 Article Number: 92731C DOI: 10.1117/12.2064959 Published: 2014 | ||||||
| Abstract: Joint transform correlator (JTC) is a highly efficient way to measure image motion and a hybrid opto-digital JTC (HODJTC) has been proposed by us in [CHIN. OPT. LETT., Vol. 8, No. 8]. Being different from the traditional JTC, only one optical Fourier transform is needed and the optically generated joint power spectrum (JPS) is used to compute the image motion in a digital way. Although a high measurement precision can be obtained through HODJTC, the defocus will counteract the final result. In this paper, the influence of defocus is analyzed and an improved HODJTC, whose sensitiveness to defocus is reduced, is proposed. By introducing randomly generated defocus, a series of cross-correlation peak images is obtained and a subsequent spatial averaging procedure is applied to these images to generate the final cross-peak image which is used to compute the defocus invariant motion value. | ||||||
| Accession Number: WOS:000349401900032 | ||||||
| Conference Title: Conference on Optoelectronic Imaging and Multimedia Technology III | ||||||
| Conference Date: OCT 09-11, 2014 | ||||||
| Conference Location: Beijing, PEOPLES R CHINA | ||||||
| Conference Sponsors: SPIE, Chinese Opt Soc | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0277-786X | ||||||
| eISSN: 1996-756X | ||||||
| ISBN: 978-1-62841-346-5 |
| Record 82 of 86 | |||||||||||||||
| Title: ACTION RECOGNITION BASED ON SEMANTIC FEATURE DESCRIPTION AND CROSS CLASSIFICATION | |||||||||||||||
| Author(s): Zhao, Y (Zhao, Yang); Wang, Q (Wang, Qi); Yuan, Y (Yuan, Yuan) | |||||||||||||||
| Book Group Author(s): IEEE | |||||||||||||||
| Source: 2014 IEEE CHINA SUMMIT & INTERNATIONAL CONFERENCE ON SIGNAL AND INFORMATION PROCESSING (CHINASIP) Pages: 626-630 Published: 2014 | |||||||||||||||
| Abstract: Action recognition is a challenging topic in computer vision. In this work, we present a novel method for action recognition which is based on two claimed contributions: semantic feature description and cross classification. The designed descriptor is combined by several local 3D-SIFT and is informative and distinctive, reflecting the spatio-temporal clues of the video. The cross classification effectively combines the feature localization and action categorization together. The proposed method is justified on a popular dateset named UCF50 and the experimental results demonstrate that our method outperforms the state-of-the-art competitors. | |||||||||||||||
| Accession Number: WOS:000366612600128 | |||||||||||||||
| Conference Title: 2nd IEEE China Summit / International Conference on Signal and Information Processing (IEEE ChinaSIP) | |||||||||||||||
| Conference Date: JUL 09-13, 2014 | |||||||||||||||
| Conference Location: Xian, PEOPLES R CHINA | |||||||||||||||
| Conference Sponsors: IEEE, Inst Elect & Elect Engineers Signal Proc Soc, NW Polytechn Univ, Shaanxi Key Lab Informat Acquisit & Proc, Natl Nat Sci Fdn China, KC Wong Educ Fdn, Texas Instruments, Xidian Univ, Natl Lab Radar Signal Proc | |||||||||||||||
| Author Identifiers: | |||||||||||||||
| |||||||||||||||
| ISBN: 978-1-4799-5403-2 |
| Record 83 of 86 | |||||||||
| Title: Improved Design of Microstrip-to-Slotline Transition | |||||||||
| Author(s): Zhao, Y (Zhao, Yuan); Hu, BL (Hu, Bingliang); Deng, C (Deng, Chao); Wang, HW (Wang, Hongwei); Li, L (Li, Lei); Wang, Y (Wang, Ying) | |||||||||
| Edited by: Ge W | |||||||||
| Source: MECHANICAL COMPONENTS AND CONTROL ENGINEERING III Book Series: Applied Mechanics and Materials Volume: 668-669 Pages: 844-+ DOI: 10.4028/www.scientific.net/AMM.668-669.844 Published: 2014 | |||||||||
| Abstract: A novel compact Ultra-Wide Band (UWB) microstrip-slotline transition utilizing high impedance chip resistor is proposed and analyzed. The reactance introduced by the microstrip open end and slotline short end, which is the main limitation to the bandwidth in the traditional structures, is minimized in the design. The model is analyzed with the method of equivalent circuits and simulated by the commercial software HFSS. To test the performance of this transition a back-to-back structure is fabricated. The measurement results show that the bandwidth of 45 octaves can be obtained while the insert loss S-12 is better than 0.7dB within the band. | |||||||||
| Accession Number: WOS:000348898100182 | |||||||||
| Conference Title: 3rd Asian Pacific Conference on Mechanical Components and Control Engineering (ICMCCE) | |||||||||
| Conference Date: SEP 20-21, 2014 | |||||||||
| Conference Location: Nankai Univ, Tianjin, PEOPLES R CHINA | |||||||||
| Conference Host: Nankai Univ | |||||||||
| Author Identifiers: | |||||||||
| |||||||||
| ISSN: 1660-9336 | |||||||||
| ISBN: 978-3-03835-312-6 |
| Record 84 of 86 |
| Title: Error Correction of Photoelectric Rotary and Angle Encoder |
| Author(s): Zhou, L (Zhou Liang); She, WJ (She Wen-ji); Huang, J (Huang Jing) |
| Edited by: OjedaCastaneda J; Han S; Jia P; Fang J; Fan D; Qian L; Gu Y; Yan X |
| Source: SELECTED PAPERS FROM CONFERENCES OF THE PHOTOELECTRONIC TECHNOLOGY COMMITTEE OF THE CHINESE SOCIETY OF ASTRONAUTICS: OPTICAL IMAGING, REMOTE SENSING, AND LASER-MATTER INTERACTION 2013 Book Series: Proceedings of SPIE Volume: 9142 Article Number: 91421H DOI: 10.1117/12.2054092 Published: 2014 |
| Abstract: The photoelectric rotary and angle encoder is a digital angle measuring device, which is integrated with optics, mechanics and electrics. Because of its simple structure, high resolution, and high accuracy, it has been widely used in precision measurement of angle, digital control and digital display system. With the needs of fast tracking and accurate orientation on the horizon and air targets, putting forward higher requirements on accuracy of angle measurement and resolution of photoelectric rotary and angle encoder. Influences of manufacturing, electronics segmentation, optical and mechanical structure and eccentric shaft to photoelectric encoder precision and reducing methods are introduced. Focusing on the eccentricity error, building up an error correction model to improve the resolution of angle encoder and the model was verified by test. |
| Accession Number: WOS:000334347800052 |
| Conference Title: International Seminar on Aerial Optical Remote Sensing Technology and Application |
| Conference Date: OCT 20-29, 2013 |
| Conference Location: SuZhou, PEOPLES R CHINA |
| Conference Sponsors: China Soc Astronaut, Photoelectron Technol Comm |
| ISSN: 0277-786X |
| ISBN: 978-1-62841-093-8 |
| Record 85 of 86 | ||||||
| Title: A Secondary Mirror Adjustment System With Hexapod Structure For Optical Telescope Application | ||||||
| Author(s): Zhou, N (Zhou, Nan); Li, C (Li, Chuang); Gao, W (Gao, Wei); Song, ZX (Song, ZongXi); Zhao, C (Zhao, Chao); Ren, GR (Ren, GuoRui); Jing, N (Jing, Nan) | ||||||
| Edited by: Jiang W; Cho MK; Wu F | ||||||
| Source: 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES Book Series: Proceedings of SPIE Volume: 9280 Article Number: 92800N DOI: 10.1117/12.2068311 Published: 2014 | ||||||
| Abstract: Benefiting from low cost, light weight and reduced volume in launch, deployable optical telescopes will be extensively applied in microsatellites. As a result of manufactured tolerance and external disturbance, the secondary mirror can't arrive at designed position precisely after a deployable telescope is unfolded. We investigate an adjustment system with six degrees of freedom based on hexapod structure to solve this problem. There are mainly four parts in this paper. Firstly, the adjustment methods of deployable telescopes for microsatellites are introduced. Generally several kinds of optical components can be adjusted to align a deployed telescope: primary mirror, tip/tilt mirror and secondary mirror. Due to its high sensitivity and convenience, the secondary mirror is chosen to collimate the optical system of the telescope. Secondly, an adjustment system with hexapod structure is designed for a secondary mirror with 85 mm diameter. After comparing the characteristics of step motors, piezo actuators and voice coil motors (VCMs), VCMs are selected as the linear actuators. By using optical gratings as displacement sensors in the system, we can make closed-loop control come true. The hexapod structure mainly consists of 6 VCMs, 6 optical gratings and 6 oblique legs with flexible hinges. The secondary mirror adjustment system is 83 mm in diameter and 55 mm high. It has tip/tilt rotational ranges of +/- 2.205 degrees with resolution of better than +/- 0.007 degrees, and translational ranges of +/- 1.545 mm with resolution of better than +/- 0.966 mu m. Thirdly, the maximum stress and the maximum deformation in the adjustment system are computed with finite element method. At last, the kinematics problems of the adjustment system are discussed. | ||||||
| Accession Number: WOS:000344602300022 | ||||||
| Conference Title: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Large Mirrors and Telescopes | ||||||
| Conference Date: APR 26-29, 2014 | ||||||
| Conference Location: Harbin, PEOPLES R CHINA | ||||||
| Conference Sponsors: Chinese Opt Soc, Chinese Acad Sci, Inst Opt & Elect, SPIE | ||||||
| Author Identifiers: | ||||||
| ||||||
| ISSN: 0277-786X | ||||||
| ISBN: 978-1-62841-355-7 |
| Record 86 of 86 | ||||||||||||
| Title: Design of a high aperture compression ratio, dual-band static Fourier transform imaging spectrometer for remote sensing | ||||||||||||
| Author(s): Zou, CB (Zou Chun-Bo); Hu, BL (Hu Bing-Liang); Li, LB (Li Li-Bo); Bai, QL (Bai Qing-Lan); Sun, X (Sun Xin); Li, R (Li Ran); Yang, JF (Yang Jian-Feng) | ||||||||||||
| Edited by: Rolland JP; Yan C; Kim DW; Ma W; Zheng L | ||||||||||||
| Source: INTERNATIONAL SYMPOSIUM ON OPTOELECTRONIC TECHNOLOGY AND APPLICATION 2014: IMAGING SPECTROSCOPY; AND TELESCOPES AND LARGE OPTICS Book Series: Proceedings of SPIE Volume: 9298 Article Number: 929811 DOI: 10.1117/12.2083243 Published: 2014 | ||||||||||||
| Abstract: A novel dual-band static Fourier transform imaging spectrometer was designed, which was the spatio-temporally modulated imaging Fourier transform spectrometer based on Sagnac interferometer. The approach represented a simplification and mass reduction over the traditional approach. It could obtain two-dimensional spatial images and one dimensional spectral image in two bands simultaneously. The two bands was separated through a dichroic prism and imaging in two detectors. one band was the visible and near infrared band, with the spectral range 400nm-1000nm and spectral resolution 187.5 wave numbers; the other was the short wave infrared band, with the spectral range 1000nm-2500nm and spectral resolution 150 wave numbers. To reduce the size of the Interferometer, a high aperture compression ratio telescope system was designed before. The optical aperture was compressed to 1/10, and the volume of interferometer was reduced to 1/1000. For the convenience of engineering implementation, the telescope was composed of two no-aberration object lens: fore-lens and Collimating lens. The two band imaging spectrometers shared the primary lens and the second lens of the fore-lens and use their own collimating lens, interferometers and Fourier transform lens. The collimating lens and the Fourier transform lens of each spectrometer could be designed to the same structural style and parameters. The both spectrometers had a focal length of 1000mm, F number of 5, FOV(field of view) of 1 degrees. Moreover, both image qualities were close to the diffraction limit, the distortion was less than 2%. The advantage of the instrument was that dual band spectral image could be acquired at the same time and the interferometer was miniaturized extremely in the case of unchanged technical indicators. | ||||||||||||
| Accession Number: WOS:000350337200037 | ||||||||||||
| Conference Title: International Symposium on Optoelectronic Technology and Application (IPTA) - Imaging Spectroscopy and Telescopes and Large Optics | ||||||||||||
| Conference Date: MAY 13-15, 2014 | ||||||||||||
| Conference Location: Beijing, PEOPLES R CHINA | ||||||||||||
| Conference Sponsors: Chinese Soc Astronaut, Photoelectron Technol Comm, China High Tech Industrializat Assoc, SPIE | ||||||||||||
| Author Identifiers: | ||||||||||||
| ||||||||||||
| ISSN: 0277-786X | ||||||||||||
| eISSN: 1996-756X | ||||||||||||
| ISBN: 978-1-62841-384-7 |