首页   |  中国科学院
当前位置: 首页>CPCI收录论文
2012年
作者: 来源 : 时间:2014-09-19 字体<    >

第 1 条,共 65 条
标题: Slow-light in photonic crystal waveguides/fibers: dispersion tailoring schemes for obtaining a high group index with wide band and low GVD
作者: Ren, LY (Ren, Liyong); Liang, J (Liang, Jian); Liu, Y (Liu, Yu); Ju, HJ (Ju, Haijuan); Yun, MJ (Yun, Maojin); Ma, CJ (Ma, Chengju); Han, X (Han, Xu); Lin, X (Lin, Xiao); Tomita, Y (Tomita, Yasuo)
编者: Shahriar SM; Narducci FA
来源出版物: ADVANCES IN SLOW AND FAST LIGHT V  丛书: Proceedings of SPIE  卷: 8273  文献号: 82730L  DOI: 10.1117/12.914460  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Phenomenon of slow light has long been a hot research topic due to its promising and potential applications in communication networks, signal processing, optical sensors and nonlinear interactions. Particularly, photonic crystal devices, being capable of supporting slow-light propagation, are much attractive owing to its room-temperature operation and tunable dispersion features. Among them, photonic crystal waveguides (PCWs) are specially used in compact devices, while photonic band-gap fibers (PBGFs) are usually used in short-distance propagation and high sensitive interferometers. In this paper, dispersion tailoring schemes for obtaining a high group index with the wide band and low group velocity dispersion (GVD) are reviewed in both PCWs and PBGFs. For the same purpose, we propose schemes for the slow-pulse propagation in PCWs based on the air-hole shifting method and in PBGFs based on the microfluid infiltration method, respectively. Simulation results using 2D plane wave expansion method and finite-difference time-domain (FDTD) method are given. Pulse distortion and design optimization are also discussed in some detail with the consideration of the practical fabrication errors. Slow-light pulse propagation in photonic crystal fiber is also demonstrated in the experiment based on stimulated Brillouin scattering.
文献类型: Proceedings Paper
会议名称: Conference on Advances in Slow and Fast Light V
会议日期: JAN 22-24, 2012
会议地点: San Francisco, CA
作者关键词: slow-light; photonic crystal waveguide (PCW); photonic crystal fiber (PCF); pulse distortion; stimulated Brillouin scattering (SBS); group velocity dispersion (GVD)
KeyWords Plus: STIMULATED BRILLOUIN-SCATTERING; WAVE-GUIDES; OPTICAL-FIBER; MAXWELLS EQUATIONS; GROUP-VELOCITY; PROPAGATION; DELAY; LINE; ENHANCEMENT; BANDWIDTH
Web of Science 类别: Engineering, Electrical & Electronic; Optics; Physics, Applied
研究方向: Engineering; Optics; Physics
IDS 号: BAR79
ISSN: 0277-786X
ISBN: 978-0-8194-8916-6
________________________________________
第 2 条,共 65 条
标题: Hollow-core photonic bandgap fiber with microfluid-infiltrated air holes for slow-light propagation
作者: Ren, LY (Ren, Liyong); Liang, J (Liang, Jian); Yun, MJ (Yun, Maojin)
编者: Yin S; Guo R
来源出版物: PHOTONIC FIBER AND CRYSTAL DEVICES: ADVANCES IN MATERIALS AND INNOVATIONS IN DEVICE APPLICATIONS VI  丛书: Proceedings of SPIE  卷: 8497  文献号: 849710  DOI: 10.1117/12.929124  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Slow light plays an important role in the fields of all-optical signal processing and integration photonics. It has shown many potential applications, such as realizing optical delay lines or buffers, enhancing linear and nonlinear light-matter interactions, as well as increasing the sensitivity of the interferometers and transducers. In this paper, hollow-core photonic bandgap fibers made from high index glasses are designed by infiltrating microfluid into the air-holes to tailor the fiber dispersion for slow-light propagation under low pulse distortion. In such a fiber made from Si material, group index n(g)similar to 8 is obtained with a bandwidth up to 30 nm, where the group index fluctuation is restricted in +/- 10 % of the n(g), while n(g)similar to 6 is obtained with a bandwidth over 100 nm when the chalcogenide material is selected instead. Such a +/- 10 % criterion determines a regarded flatland region accordingly, and in this region the group velocity dispersion can be negligible. It is found that for the same fiber length the slow-light time delay in the photonic bandgap fiber is much larger as compared with that in the single mode fiber. This kind of photonic bandgap fiber may have many potential applications in short-distance fiber communications and delay lines.
文献类型: Proceedings Paper
会议名称: Conference on Photonic Fiber and Crystal Devices - Advances in Materials and Innovations in Device Applications VI
会议日期: AUG 12-13, 2012
会议地点: San Diego, CA
作者关键词: Slow-light; photonic crystal fiber (PCF); photonic bandgap fiber (PBGF); pulse distortion; group velocity dispersion (GVD); microfluid infiltration method
KeyWords Plus: CRYSTAL WAVE-GUIDES; STIMULATED BRILLOUIN-SCATTERING; DISPERSION; OPTOFLUIDICS
Web of Science 类别: Crystallography; Optics
研究方向: Crystallography; Optics
IDS 号: BCZ61
ISSN: 0277-786X
ISBN: 978-0-8194-9214-2
________________________________________
第 3 条,共 65 条
标题: The Implementation of Remote Digital Video Monitoring System Based on ARM11
作者: Du, SC (Du, Shichang); Li, BX (Li, Bianxia)
书籍团体作者: IEEE
来源出版物: 2012 IEEE FIFTH INTERNATIONAL CONFERENCE ON ADVANCED COMPUTATIONAL INTELLIGENCE (ICACI)  页: 217-220  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: This paper describes the design and implementation of a remote video monitoring system. The system adopts ARM11 as the main processor, and uses hard-coding to compress the video data with H. 264. In the embedded environment of Linux, server adopts V4L2 interface technology, the latest H. 264 video coding technology, and RTP/RTCP Real-Time Transport Protocol to complete video capture, encoding and transmission process. At the beginning of this paper it describes the necessity of the design of the system. And then it elaborates the realization methods of hardware and software, and makes necessary instructions of the choice of some methods. At the end of the paper, we tested the system and showed the test results.
文献类型: Proceedings Paper
会议名称: IEEE 5th International Conference on Advanced Computational Intelligence (ICACI)
会议日期: OCT 18-20, 2012
会议地点: Nanjing, PEOPLES R CHINA
Web of Science 类别: Computer Science, Artificial Intelligence; Computer Science, Theory & Methods; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BIB13
ISBN: 978-1-4673-1744-3
________________________________________
第 4 条,共 65 条
标题: A Method of Identifying and Locating Encoded Artificial Points Automatically in Close Range Digital Photogrammetry
作者: Wang, YW (Wang, Yongwang); Wu, YM (Wu, Yiming); Zhao, XJ (Zhao, Xiaojin); Yao, Z (Yao, Zhen); Li, CY (Li, Chunyan)
书籍团体作者: IEEE
来源出版物: 2012 IEEE FIFTH INTERNATIONAL CONFERENCE ON ADVANCED COMPUTATIONAL INTELLIGENCE (ICACI)  页: 649-652  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Using coding artificial point can match the homonymy points during multiple images automatically in the photogrammetry. A method of identifying and locating 8 bits encoded points automatically has been presented in this paper. The experimental results show that the accuracy of center coordinate of encoding point reaches sub-pixel level. And decoding method is simple. The robust of decoding and recognition rate is high. So it can meet the requirements of close range photogrammetry fully.
文献类型: Proceedings Paper
会议名称: IEEE 5th International Conference on Advanced Computational Intelligence (ICACI)
会议日期: OCT 18-20, 2012
会议地点: Nanjing, PEOPLES R CHINA
Web of Science 类别: Computer Science, Artificial Intelligence; Computer Science, Theory & Methods; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BIB13
ISBN: 978-1-4673-1744-3
________________________________________
第 5 条,共 65 条
标题: Driving Circuit Design for High Frame Rate CCD Image Sensor
作者: Hao, YJ (Hao, Yajiao); Liu, XB (Liu, Xuebin)
书籍团体作者: IEEE
来源出版物: 2012 IEEE FIFTH INTERNATIONAL CONFERENCE ON ADVANCED COMPUTATIONAL INTELLIGENCE (ICACI)  页: 1013-1016  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: In the light of a frame-transfer CCD area array with high frame rate, the paper explains its operation mechanism in detail. In this paper, LM317H and LM337H are chosen to design a variety of bias voltages required for the CCD. The driving pulses for CCD are generated by the FPGA of Xilinx Corporation and the driving circuit is designed by EL7457CL. The 16 output electrical signals from CCD are pre-processed by voltage followers and differential amplifiers. The experimental results show that the design of driving circuit can meet the normal demands for CCD.
文献类型: Proceedings Paper
会议名称: IEEE 5th International Conference on Advanced Computational Intelligence (ICACI)
会议日期: OCT 18-20, 2012
会议地点: Nanjing, PEOPLES R CHINA
Web of Science 类别: Computer Science, Artificial Intelligence; Computer Science, Theory & Methods; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BIB13
ISBN: 978-1-4673-1744-3
________________________________________
第 6 条,共 65 条
标题: RF Power Amplifier Design Applied to Acoustic Optical Modulator
作者: Hu, WJ (Hu, Wenjie); Luo, XJ (Luo, Xiujuan); Cui, DZ (Cui, Dongzi)
书籍团体作者: IEEE
来源出版物: 2012 IEEE FIFTH INTERNATIONAL CONFERENCE ON ADVANCED COMPUTATIONAL INTELLIGENCE (ICACI)  页: 1044-1048  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: This paper proposes a novel procedure of designing a power amplifier with broadband and high linearity, which is applied to acoustic optical modulator. Firstly, a transistor should be suitably chosen, here we accomplish the direct current (DC) simulation in order to get the right quiescent operating point under the platform Advanced Design System 2009 (ADS). Then some stability simulations and measurements were taken to make sure that the amplifier can be unconditionally stable. Finally, we carried out the load pull and source pull simulations to obtain the load and source impedances required, while executing the Harmonic Balance (HB) simulations to verify our design.
文献类型: Proceedings Paper
会议名称: IEEE 5th International Conference on Advanced Computational Intelligence (ICACI)
会议日期: OCT 18-20, 2012
会议地点: Nanjing, PEOPLES R CHINA
Web of Science 类别: Computer Science, Artificial Intelligence; Computer Science, Theory & Methods; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BIB13
ISBN: 978-1-4673-1744-3
________________________________________
第 7 条,共 65 条
标题: Constant Current Chopping Subdivision Driver of Stepper Motor Applied in Harsh Environment
作者: Dong, Q (Dong, Qiang); Li, Y (Li, Yan); Tian, Y (Tian, Ye); Wang, XH (Wang, XianHong)
书籍团体作者: IEEE
来源出版物: 2012 IEEE FIFTH INTERNATIONAL CONFERENCE ON ADVANCED COMPUTATIONAL INTELLIGENCE (ICACI)  页: 1049-1052  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 1
被引频次合计: 1
摘要: According to the special requirements of aerospace electronic products, this paper gives a designation of constant current subdivision driver of step motor based on the FPGA. In this design, the subdivision of the Sine/Cosine waveform is used to control current waveform, while the comparison of the feedback current and control current implements the function of constant current control. The design has some advantages such as stable output torque, low noise and vibration at low speed, short time in positioning and small possibility of losing step.
文献类型: Proceedings Paper
会议名称: IEEE 5th International Conference on Advanced Computational Intelligence (ICACI)
会议日期: OCT 18-20, 2012
会议地点: Nanjing, PEOPLES R CHINA
Web of Science 类别: Computer Science, Artificial Intelligence; Computer Science, Theory & Methods; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BIB13
ISBN: 978-1-4673-1744-3
________________________________________
第 8 条,共 65 条
标题: Design of the Autocollimator Tracking System based on TMS320DM642 and TMS320F2812
作者: Guo, HX (Guo, Hongxiang); Hu, XD (Hu, Xiaodong)
书籍团体作者: IEEE
来源出版物: 2012 IEEE FIFTH INTERNATIONAL CONFERENCE ON ADVANCED COMPUTATIONAL INTELLIGENCE (ICACI)  页: 1081-1084  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: This paper introduces the composition of the autocollimator tracking system, and analyses in detail the image processing part and servo tracking part of the system. The image processing part uses TMS320DM642 DSP to complete the image acquisition and image display. Using RS232 serial ports to transmit each frame offset of target to the servo tracking part. According to the offset information, the servo tracking part makes use of TMS320F2812 DSP to complete real-time tracking. Autocollimator tracking system uses two rhombic prisms to ensure real-time transmission of optical path. Experiments show that the autocollimator tracking system can achieve 1HZ real-time tracking and fully meets the project needs.
文献类型: Proceedings Paper
会议名称: IEEE 5th International Conference on Advanced Computational Intelligence (ICACI)
会议日期: OCT 18-20, 2012
会议地点: Nanjing, PEOPLES R CHINA
Web of Science 类别: Computer Science, Artificial Intelligence; Computer Science, Theory & Methods; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BIB13
ISBN: 978-1-4673-1744-3
________________________________________
第 9 条,共 65 条
标题: Noise Of CCD Reduction Based On Three-D Noise Model
作者: Lin, H (Lin Hui); Tian, XF (Tian Xinfeng); Su, XQ (Su Xiuqin)
编者: Shimura T; Xu G; Tao L; Zheng J
来源出版物: OPTOELECTRONIC IMAGING AND MULTIMEDIA TECHNOLOGY II  丛书: Proceedings of SPIE  卷: 8558  文献号: 85582J  DOI: 10.1117/12.2001100  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: This paper proposed proper noise reduction methods for the two different noises (i.e. temporal noise and special noise) based on the 3-D noise model of scientific-grade CCD. Noise reduction calculations have been made with these methods. The results show that these methods are effective for the reduction of temporal noise and spatial noise. The experimental data have verified the effectiveness of these methods for scientific-grade CCD.
文献类型: Proceedings Paper
会议名称: Conference on Optoelectronic Imaging and Multimedia Technology II
会议日期: NOV 05-07, 2012
会议地点: Beijing, PEOPLES R CHINA
作者关键词: Scientific-grade CCD; Temporal Noise; Spatial Noise
Web of Science 类别: Engineering, Electrical & Electronic; Optics; Physics, Applied
研究方向: Engineering; Optics; Physics
IDS 号: BHT79
ISSN: 0277-786X
ISBN: 978-0-8194-9313-2
________________________________________
第 10 条,共 65 条
标题: Simulation of Incoherently Coupled Multicomponent Solitons on MATLAB
作者: Li, KH (Li, Kehao); Chen, WJ (Chen, Weijun); Wang, CX (Wang, Chunxiang); Hui, JL (Hui, Juanli); Lu, KQ (Lu, Keqing)
书籍团体作者: IEEE
来源出版物: PROCEEDINGS OF 2012 2ND INTERNATIONAL CONFERENCE ON COMPUTER SCIENCE AND NETWORK TECHNOLOGY (ICCSNT 2012)  页: 1431-1434  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: We show that incoherently coupled multicomponent beam evolution equations in the low-amplitude regime in biased photorefractive-photovoltaic crystals can exhibit the analytical solutions of multicomponent solitons, which are due to both the spatially nonuniform screening of the external electric field and the photovoltaic effect. These multicomponent solitons can be obtained for N self-trapped mutually incoherent optical beams, where N is an arbitrary whole number. When the photovoltaic effect is neglected, their nonlinear evolution equations change into that for multicomponent screening solitons, and these multicomponent solitons change into multicomponent screening solitons. When the external bias field is absent, their nonlinear evolution equations change into that for multicomponent photovoltaic solitons in closed and open circuits, and these multicomponent solitons change into multicomponent photovoltaic solitons in closed and open circuits.
文献类型: Proceedings Paper
会议名称: 2nd International Conference on Computer Science and Network Technology (ICCSNT)
会议日期: DEC 29-31, 2012
会议地点: Changchun, PEOPLES R CHINA
作者关键词: nonlinear optics; multicomponent solitons; Photorefractive-Photovoltaic Crystals
KeyWords Plus: PHOTOVOLTAIC-PHOTOREFRACTIVE CRYSTALS; VECTOR SPATIAL SOLITONS; SCREENING SOLITONS; BRIGHT; DARK; NONLINEARITY
Web of Science 类别: Computer Science, Hardware & Architecture; Computer Science, Theory & Methods; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BGX99
ISBN: 978-1-4673-2964-4; 978-1-4673-2963-7
________________________________________
第 11 条,共 65 条
标题: Kinematical analysis of one-axis polisher Acting on spherical mirror
作者: Xu, L (Xu Liang); Ding, JT (Ding Jiao-teng); Ma, Z (Ma Zhen); Chen, QF (Chen Qin-fang)
编者: Yang L; Ruch E; Li S
来源出版物: 6TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: ADVANCED OPTICAL MANUFACTURING TECHNOLOGIES  丛书: Proceedings of SPIE  卷: 8416  文献号:   DOI: 10.1117/12.975673  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: A three-dimensional kinematic model of spherical mirror is developed by coordinate transformation theory. Based on the model and Preston equation, material removal rate for polishing with constant pressure can be obtained. Then the fitted parameters are determined for special process tools (pentagon tool and Uniform Removal Tool), Conclusions beneficial to glass polishing in practice are arrived. The simulate results can describe visually the material removal law of mirror under so many kinematic parameters. The work discussed above is of importance to polish flat mirror, spherical mirror and aspheric mirror with one-axis polisher.
文献类型: Proceedings Paper
会议名称: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Advanced Optical Manufacturing Technologies
会议日期: APR 26-29, 2012
会议地点: Xiamen, PEOPLES R CHINA
作者关键词: one-axis polisher; coordinate transformation; kinematical analysis; spherical mirror; aspheric mirror
Web of Science 类别: Optics
研究方向: Optics
IDS 号: BHT08
ISSN: 0277-786X
ISBN: 978-0-8194-9098-8
________________________________________
第 12 条,共 65 条
标题: Optical aligning and measuring methods for large aperture optical system
作者: Zhang, XM (Zhang Xue-min); Wei, RY (Wei Ru-yi); Duan, JY (Duan Jia-you); Yang, JF (Yang Jian-feng); Li, H (Li Hua); Hou, XH (Hou Xiaohua)
编者: Yang L; Ruch E; Li S
来源出版物: 6TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: ADVANCED OPTICAL MANUFACTURING TECHNOLOGIES  丛书: Proceedings of SPIE  卷: 8416  文献号:   DOI: 10.1117/12.978167  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: How to implement high accuracy measurement of large-aperture coaxial optical system is crucial to the optical alignment and optical property evaluation. The methods of image quality measurement including interferometer-collimating testing, wave front testing by using Hartmann, image processing and analysis of out-of-focus image were introduced. Both the advantages and disadvantages of the three methods were compared, which showed that the alignment method based on interferometer-collimating testing is the one with the highest accuracy. The method of computer-aided alignment (CAA) based on interferometer-collimating was discussed in detail. By using a ZYGO interferometer, interferograms with different field of views and a series of Zernike coefficients were obtained to express the disalignment of the system, and then these incorrect parameters were calculated by CAA algorithms. An alignment experiment of coaxial three-mirror system with 4m focal length and 500mm aperture was carried out. The RMS value of the system is lower than 0.07. after iterations, which is close to the optical diffraction limit, proving the effectiveness of CAA method in alignment guidance.
文献类型: Proceedings Paper
会议名称: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Advanced Optical Manufacturing Technologies
会议日期: APR 26-29, 2012
会议地点: Xiamen, PEOPLES R CHINA
作者关键词: Large-aperture; Imaging quality; Measurement; Interferometer-collimating; Coaxial three-mirror; Computer-aided Alignment (CAA)
KeyWords Plus: COMPUTER-AIDED ALIGNMENT; TELESCOPE
Web of Science 类别: Optics
研究方向: Optics
IDS 号: BHT08
ISSN: 0277-786X
ISBN: 978-0-8194-9098-8
________________________________________
第 13 条,共 65 条
标题: Optical design of satellite laser communication integrative transceiver
作者: Cheng, YY (Cheng, Yanyan); Fan, XW (Fan, Xuewu); Zou, GY (Zou, Gangyi); Yan, PP (Yan, Peipei); Liu, K (Liu, Kai)
编者: Jiang W; Cho MK; Wu F
来源出版物: 6TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES  丛书: Proceedings of SPIE  卷: 8415  文献号: 84151F  DOI: 10.1117/12.973763  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: According to technical requirements of satellite optical communication, a set of optical system of transmitter and receiver with a common optical antenna is designed at 850nm. We select a Cassegrain-type afocal off-axis system as the optical antenna structure. The entrance pupil diameter is 150 mm. The field of view of transmitter and receiver is +/- 100 mu rad and +/- 5mrad, respectively. This optical system has a simple and feasible configuration. The design results show that system performances are acceptable. The MTF is close to the diffraction limit. The energy concentration ratios are more than 90% at 30 mu m of diameter of circle. The RMS of wave front aberration is less than lambda/20.
文献类型: Proceedings Paper
会议名称: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Large Mirrors and Telescopes
会议日期: APR 26-29, 2010
会议地点: Xiamen, PEOPLES R CHINA
作者关键词: Optical system design; Satellite laser communication; Optical antenna; Transceiver; Cassegrain system
Web of Science 类别: Optics
研究方向: Optics
IDS 号: BGH03
ISSN: 0277-786X
ISBN: 978-0-8194-9097-1
________________________________________
第 14 条,共 65 条
标题: Research on reflective optical telescope system's wavefront aberration compensation method
作者: Duan, XT (Duan Xueting)
编者: Jiang W; Cho MK; Wu F
来源出版物: 6TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES  丛书: Proceedings of SPIE  卷: 8415  文献号: 84151D  DOI: 10.1117/12.978629  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Wavefront aberration measurement of the image quality of reflective telescope system which has a large aperture and long focal length is one of the frequently-used methods of high-precision test and alignment. It was widely used during the large aperture telescope manufacturing process. The influences of surface shape error of the reflective optical telescope system components were simulated and analyst by input the actual measuring data into the optical design software CODE V in this article. According to the test results compared to the alignment process, the accuracy of the simulation method was indicated. At the same time, the wavefront aberration optical compensation principle of the reflective optical telescope system was proved by the simulation of alignment. And in this article, the feasibility of the application of optical phase compensation alignment method was investigated.
文献类型: Proceedings Paper
会议名称: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Large Mirrors and Telescopes
会议日期: APR 26-29, 2010
会议地点: Xiamen, PEOPLES R CHINA
作者关键词: reflective telescope system; wavefront aberration; optical phase compensation; surface shape; CODE V
Web of Science 类别: Optics
研究方向: Optics
IDS 号: BGH03
ISSN: 0277-786X
ISBN: 978-0-8194-9097-1
________________________________________
第 15 条,共 65 条
标题: Research on design of a cubic conjugate phase mask having the capability of controlling the bandwidth of wave-front coding system
作者: Zhao, H (Zhao, Hui); Li, YC (Li, Yingcai)
编者: Wang Y; Du C; Hua H; Tatsuno K; Urbach HP
来源出版物: OPTICAL DESIGN AND TESTING V  丛书: Proceedings of SPIE  卷: 8557  文献号: 85572C  DOI: 10.1117/12.981932  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: In this paper, an extended cubic phase mask used to realize wave-front coding technique is derived in frequency domain. Then by splitting and re-combining the terms of the phase function, a new mask containing two conjugate cubic terms is generated and can be physically realized by shifting and superposing two cubic phase mask having relative displacement with respect to the center of the pupil plane. Simulation results indicate that this phase mask has the capability of changing the system effective bandwidth while maintaining the defocus invariance characteristic. The work reported can be extended to other phase masks and could be considered to be complementary to the existing researches.
文献类型: Proceedings Paper
会议名称: Conference on Optical Design and Testing V
会议日期: NOV 05-07, 2012
会议地点: Beijing, PEOPLES R CHINA
作者关键词: wave-front coding; cubic phase mask; depth of field; bandwidth
KeyWords Plus: INCOHERENT IMAGING-SYSTEM; FIELD; DEPTH; EXTEND
Web of Science 类别: Optics; Imaging Science & Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
研究方向: Optics; Imaging Science & Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
IDS 号: BGG24
ISSN: 0277-786X
ISBN: 978-0-8194-9312-5
________________________________________
第 16 条,共 65 条
标题: Prototype design of an all-reflective non-coaxial optical zooming system for space camera application without moving elements based on deformable mirror
作者: Zhao, H (Zhao, Hui); Fan, XW (Fan, Xuewu); Zou, GY (Zou, Gangyi); Pang, ZH (Pang, Zhihai); Wang, W (Wang, Wei); Ren, GR (Ren, Guorui); Su, Y (Su, Yu)
编者: Wang Y; Du C; Hua H; Tatsuno K; Urbach HP
来源出版物: OPTICAL DESIGN AND TESTING V  丛书: Proceedings of SPIE  卷: 8557  文献号: 855713  DOI: 10.1117/12.981931  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Based on optical zooming used to capture images with variable resolution and field of view (FOV), an all-reflective non-coaxial optical zooming system without moving elements is designed for space camera application. In this prototype design, a deformable mirror (DM) whose curvature radius can be changed is introduced. By carefully selecting the optical power of conventional reflective mirrors surrounding the DM, the overall focal length of the imaging system can be greatly changed with slight variation of curvature radius of DM. The focal length of the system can be changed from 48mm to 192mm and the system performance is approaching diffraction-limited with diverse criteria and the maximum stoke of DM is still within its physical limits at the same time. The experimental results prove the effectiveness of DM based optical zooming and will provide a new routine for new type of space camera design in the future.
文献类型: Proceedings Paper
会议名称: Conference on Optical Design and Testing V
会议日期: NOV 05-07, 2012
会议地点: Beijing, PEOPLES R CHINA
作者关键词: optical zooming; deformable mirror; space camera
Web of Science 类别: Optics; Imaging Science & Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
研究方向: Optics; Imaging Science & Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
IDS 号: BGG24
ISSN: 0277-786X
ISBN: 978-0-8194-9312-5
________________________________________
第 17 条,共 65 条
标题: DESIGN of MINIATURE CAMERA'S LENS INCLUDING DIFFRACTIVE OPTICAL ELEMENTS
作者: Yu, DQ (Yu Dengqun); Cao, JZ (Cao Jianzhong); Zhang, J (Zhang Jian); Yan, A (Yan Aqi); Guo, HN (Guo Huinan)
编者: Chen J; Yu F; Chen W; Lu Y; Long H
来源出版物: 2012 INTERNATIONAL SYMPOSIUM ON INFORMATION SCIENCE AND ENGINEERING (ISISE)  丛书: International Conference on Information Science and Engineering  页: 404-407  DOI: 10.1109/ISISE.2012.97  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: To meet the demand for miniature camera lens, in this paper, there designed a new type of miniature plastic lens, which is made up of three lenses. The second surface of the first lens is designed as a diffractive surface. The diffractive lens is used to eliminate aberration. There has investigated the primary aberration about the systems expressed by PWC. The function relation among P-infinity W-infinity, C-infinity, and the diffractive lens structure have been established. These three lens materials are 'PMMAO', 'P-CARBO' and 'PMMAO'. The F-number is 2. 4 and FOV is 50 degrees. The overall length of this optical system is 6.52mm. The MTF at 250lp/mm is higher than 0. 3.
文献类型: Proceedings Paper
会议名称: 4th International Symposium on Information Science and Engineering (ISISE)
会议日期: DEC 14-16, 2012
会议地点: Shanghai, PEOPLES R CHINA
作者关键词: Optical design; Lens for mini camera; Hybrid refractive-diffractive (HRD) system
Web of Science 类别: Computer Science, Information Systems; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BFX35
ISSN: 2160-1283
ISBN: 978-1-4673-5680-0
________________________________________
第 18 条,共 65 条
标题: A Novel Design of Fiber-Optic Sagnac Current Sensor
作者: Cao, H (Cao, Hui); Shi, NB (Shi, Nianbao); Xu, JT (Xu, Jintao)
书籍团体作者: IEEE
来源出版物: 2012 FIFTH INTERNATIONAL SYMPOSIUM ON COMPUTATIONAL INTELLIGENCE AND DESIGN (ISCID 2012), VOL 2  丛书: International Symposium on Computational Intelligence and Design  页: 89-92  DOI: 10.1109/ISCID.2012.174  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: The principle of in-line Sagnac interferometer current sensor is presented. To simplify the modulation and eliminate the error caused by cross coupling, a new structure of current sensor is proposed here. Two end mirrored sensing fibers are winded around the conductor reversely. The modulating is much simpler and a simple analysis using Jones matrix has shown that this current sensor is feasible.
文献类型: Proceedings Paper
会议名称: 5th International Symposium on Computational Intelligence and Design (ISCID)
会议日期: OCT 28-29, 2012
会议地点: Hangzhou, PEOPLES R CHINA
作者关键词: current sensor; in-line Sagnac interferometer; modulation; Jones matrix
KeyWords Plus: INTERFEROMETER
Web of Science 类别: Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BFQ25
ISSN: 2165-1701
ISBN: 978-0-7695-4811-1
________________________________________
第 19 条,共 65 条
标题: Optical system design of Full-Disc Magnetic Field Telescope
作者: Zhao, YY (Zhao, Yiyi); Yang, JF (Yang, Jianfeng); Ma, XL (Ma, Xiaolong); Yan, XT (Yan, Xingtao)
书籍团体作者: IEEE
来源出版物: 2012 FIFTH INTERNATIONAL SYMPOSIUM ON COMPUTATIONAL INTELLIGENCE AND DESIGN (ISCID 2012), VOL 2  丛书: International Symposium on Computational Intelligence and Design  页: 290-293  DOI: 10.1109/ISCID.2012.224  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Full-Disc magnetic field telescope is an important instrument for astronomical observations. In order to meet the optical performance of the full-Disc magnetic field Telescope and the harsh coupling conditions of its filters, determined the optical parameters of the optical system by calculation. According to the calculation of the optical parameters, we puts forward a feasible optical structure which can make the system more compact under the premise of meeting the telescope in optical properties and filters coupling conditions. for the system, we have adopted the basic idea of modular design, and the overall system is divided into several subsystems were designed. the results show that the maximum wave front distortion(pv) of the system of all field of view is 0.1327 lambda; the value of MTF at the spatial frequency of 67 lp/mm is higher than 0.45 in every field. the image quality of the system approximates to the diffractive limit.
文献类型: Proceedings Paper
会议名称: 5th International Symposium on Computational Intelligence and Design (ISCID)
会议日期: OCT 28-29, 2012
会议地点: Hangzhou, PEOPLES R CHINA
作者关键词: Solar magnetic field; Telescope; Optical design; Coupling conditions of filters
Web of Science 类别: Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BFQ25
ISSN: 2165-1701
ISBN: 978-0-7695-4811-1
________________________________________
第 20 条,共 65 条
标题: Research on Image Registration and Mosaic Based on Vector Similarity Matching Principle
作者: Qin, J (Qin, Jia); Yang, JF (Yang, Jianfeng); Xue, B (Xue, Bin); Bu, F (Bu, Fan)
书籍团体作者: IEEE
来源出版物: 2012 FIFTH INTERNATIONAL SYMPOSIUM ON COMPUTATIONAL INTELLIGENCE AND DESIGN (ISCID 2012), VOL 2  丛书: International Symposium on Computational Intelligence and Design  页: 323-326  DOI: 10.1109/ISCID.2012.232  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Scale invariant feature transform (SIFT) is a better corner extraction algorithm, but there are still mismatching problems in the feature matching step. A new matching principle based on vector similarity is proposed and then it is compared with traditional matching principle. Firstly, the matching feature points are detected by the new principle. Mismatching points are further removed by using the mutual mapping theory. Secondly, transformation matrix is calculated by random sample consensus (RANSAC). Furthermore, the matrix is optimized by Levenberg-Marquardt algorithm (L-M). Lastly, image mosaic is realized by image fusion. Experimental results indicate that compared with traditional matching principle, new matching principle has improved matching accuracy. It is able to apply new principle to image registration and image mosaic.
文献类型: Proceedings Paper
会议名称: 5th International Symposium on Computational Intelligence and Design (ISCID)
会议日期: OCT 28-29, 2012
会议地点: Hangzhou, PEOPLES R CHINA
作者关键词: image mosaic; SIFT algorithm; feature matching; vector similarity; mutual mapping
Web of Science 类别: Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BFQ25
ISSN: 2165-1701
ISBN: 978-0-7695-4811-1
________________________________________
第 21 条,共 65 条
标题: Thermal Modeling and Analysis of High Power Semiconductor laser Arrays
作者: Zhang, ZY (Zhang, Zhiyong); Zhang, P (Zhang, Pu); Li, XN (Li, Xiaoning); Xiong, LL (Xiong, Lingling); Liu, H (Liu, Hui); Nie, ZQ (Nie, Zhiqiang); Wang, ZF (Wang, Zhenfu); Liu, XS (Liu, Xingsheng)
编者: Bi K; Yang D; Cai M
来源出版物: 2012 13TH INTERNATIONAL CONFERENCE ON ELECTRONIC PACKAGING TECHNOLOGY & HIGH DENSITY PACKAGING (ICEPT-HDP 2012)  页: 559-565  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: With the continuous increase of the output power of semiconductor laser array, the heat generation in the active region also increases continuously, which influences the performances and lifetime of semiconductor laser array seriously. In order to improve the performances and lifetime, understanding of the thermal behavior of high power semiconductor laser array packages and optimizing the thermal performance are crucial. By means of numerical analysis, a three-dimensional thermal model has been established, and the static and transient thermal characteristics in continuous-wave (CW) and quasi-continuous-wave (QCW) modes also have been studied systematically for a hard solder, conduction-cooled-packaged 808nm semiconductor laser array. Based on the thermal modeling and analysis, the approaches to reduce thermal resistance have been proposed. The results show that: compared with copper-tungsten (CuW), adopting the copper-diamond composite material as the submount can decrease the thermal crosstalk behavior between emitters, and reduce the thermal resistance by about 30%. In addition, a novel thermal design for the packaging structure of the mounting heat-sink is demonstrated, which has the ability of reducing the thermal resistance of the devices significantly.
文献类型: Proceedings Paper
会议名称: 13th International Conference on Electronic Packaging Technology and High Density Packaging (ICEPT-HDP)
会议日期: AUG 13-16, 2012
会议地点: Guilin, PEOPLES R CHINA
Web of Science 类别: Engineering, Electrical & Electronic
研究方向: Engineering
IDS 号: BFG99
ISBN: 978-1-4673-1681-1
________________________________________
第 22 条,共 65 条
标题: Ghost interference with pseudo-thermal light
作者: Yao, YP (Yao, Yin-Ping); Wan, RG (Wan, Ren-Gang); Zhang, SW (Zhang, Shi-Wei); Song, JZ (Song, Jia-Zheng); Zhang, TY (Zhang, Tong-Yi)
编者: Gong Q; Guo GC; Shen YR
来源出版物: QUANTUM AND NONLINEAR OPTICS II  丛书: Proceedings of SPIE  卷: 8554  文献号:   DOI: 10.1117/12.999577  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Ghost imaging (correlated imaging) has been extensively investigated in recent years, both theoretically and experimentally. By using the second-order or high-order coherence properties of light field and the correlation measurement, ghost imaging was realized with quantum entangled light, pseudo-thermal light and even true thermal light. In this work, basing on the theory of statistical optics, we model the dynamic process of thermal variation, and obtain the ghost interference and ghost imaging by means of simulated calculation. In the later experiment, a pseudo-thermal source is firstly prepared by using a laser beam to pass through a rotating ground glass plate, and the parameters of the pseudo-thermal source are obtained via Hanbury-Brown-Twiss (HBT) experiment. With the pseudo-thermal light, we perform ghost interference. The experimental results demonstrate the accordance of numerical prediction. And our conclusion shows that the quality of ghost interference is influenced by the size of the pinhole in the reference path, the little pinhole due to a higher quality of ghost interference.
文献类型: Proceedings Paper
会议名称: Conference on Quantum and Nonlinear Optics II
会议日期: NOV 05-07, 2012
会议地点: Beijing, PEOPLES R CHINA
作者关键词: ghost interference; pseudo-thermal source; Hanbury-Brown-Twiss (HBT) experiment; correlation measurements
Web of Science 类别: Optics
研究方向: Optics
IDS 号: BFG35
ISSN: 0277-786X
ISBN: 978-0-8194-9309-5
________________________________________
第 23 条,共 65 条
标题: A Robust Image Registration Algorithm Used for Panoramic Image Mosaic
作者: Bo, G (Bo, Gao); Cao, JZ (Cao, Jianzhong); Zhou, ZF (Zhou, Zuofeng); Qu, ES (Qu, Enshi); Hua, W (Hua, Wang); Guo, HN (Guo, Huinan)
编者: Qian X; Thomas L; Sun L; Francia G
来源出版物: PROCEEDINGS OF 2012 INTERNATIONAL CONFERENCE ON IMAGE ANALYSIS AND SIGNAL PROCESSING  丛书: International Conference on Image Analysis and Signal Processing  页: 300-303  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: The panoramic image has been widely used in social production, and has become an important topic in research on the field of image processing. For complex images with multiple scenes and other elements, the algorithm that is based on Harris cannot make image registration effectively. This paper proposes a method that combines Harris with SIFT, using the Harris algorithm with adaptive threshold to extract the corners and the SIFT descriptor to make the registration. It improved registration efficiency sub-effectively for the image in complex scenes, and generated a 360-degree panoramic image quickly. The experiments showed that the algorithm is adaptable and robust.
文献类型: Proceedings Paper
会议名称: 4th International Conference on Image Analysis and Signal Processing (IASP)
会议日期: NOV 09-11, 2012
会议地点: Hangzhou, PEOPLES R CHINA
会议主办方: Zhejiang Univ Media & Commun
作者关键词: cylindrical projection; Adaptive Harris corners; SIFT descriptor; panoramic images
Web of Science 类别: Engineering, Electrical & Electronic; Imaging Science & Photographic Technology
研究方向: Engineering; Imaging Science & Photographic Technology
IDS 号: BEZ73
ISSN: 2156-0110
ISBN: 978-1-4673-2545-5
________________________________________
第 24 条,共 65 条
标题: Research and Approach on Video Stabilization Algorithm
作者: Liao, JW (Liao Jiawen); Cao, JZ (Cao Jianzhong); Tang, LA (Tang Linao); Wang, H (Wang Hua)
编者: Qian X; Thomas L; Sun L; Francia G
来源出版物: PROCEEDINGS OF 2012 INTERNATIONAL CONFERENCE ON IMAGE ANALYSIS AND SIGNAL PROCESSING  丛书: International Conference on Image Analysis and Signal Processing  页: 304-307  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: This paper presents a video stabilization algorithm based on Scale Invariant Feature Transform and the improved RANdom SAmple Consensus (RANSAC) algorithm. Feature points of the video images are extracted using the SIFT algorithm, and then a compensation matrix is obtained using the improved RANSAC algorithm. Pre-detection is used to accelerate the computation by discarding those temporary models that are not candidate models. The experiment result shows that this algorithm largely reduces the amount of computation, as well as improves the speed of video stabilization without changing the accuracy notably.
文献类型: Proceedings Paper
会议名称: 4th International Conference on Image Analysis and Signal Processing (IASP)
会议日期: NOV 09-11, 2012
会议地点: Hangzhou, PEOPLES R CHINA
会议主办方: Zhejiang Univ Media & Commun
作者关键词: SIFT; Jitter; RANSAC; video stabilization; pre-detection; global motion estimation; global motion compensation
Web of Science 类别: Engineering, Electrical & Electronic; Imaging Science & Photographic Technology
研究方向: Engineering; Imaging Science & Photographic Technology
IDS 号: BEZ73
ISSN: 2156-0110
ISBN: 978-1-4673-2545-5
________________________________________
第 25 条,共 65 条
标题: Application of the Scaled Unscented Kalman Filter with Augmented State in the Fiber Optic Gyroscope
作者: Ji, ZX (Ji, Zhongxiao); Ma, CW (Ma, Caiwen)
编者: Yang D
来源出版物: 2012 INTERNATIONAL CONFERENCE ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING (ICMPBE2012)  丛书: Physics Procedia  卷: 33  页: 1817-1824  DOI: 10.1016/j.phpro.2012.05.290  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: The interferometric fiber optic gyroscope (IFOG) is a nonlinear response system. The noise, which results from the optic and electrical parts of the gyro for the environmental disturbance, includes both nonlinear noise and additive noise, and degrades the bias stability of the gyro. In this paper, the nonlinear state equation about the closed-loop IFOG is deduced from analyzing the sources, characteristic and effect of noise, and then the scaled unscented Kalman filter (SUKF) with augmented state is presented to reduce the noise. The experiment showed that: by adjusting SUKF parameters, it evidently decreases the standard deviation and Allan variance of the bias stability. Therefore this algorithm achieves better performance of filtering and improves effectively the bias stability of the gyro. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of [name organizer]
文献类型: Proceedings Paper
会议名称: International Conference on Medical Physics and Biomedical Engineering (ICMPBE)
会议日期: 2012
会议地点: Qingdao, PEOPLES R CHINA
作者关键词: fiber optic gyroscope; nonlinear noise; Kalman filter; bias stability Allan variance
KeyWords Plus: DRIFT
Web of Science 类别: Biophysics; Engineering, Biomedical; Physics, Applied
研究方向: Biophysics; Engineering; Physics
IDS 号: BDQ64
ISSN: 1875-3892
________________________________________
第 26 条,共 65 条
标题: Real-Time Auto-Focus System Design Based On Climbing Algorithm And Its FPGA Implementation
作者: Zhang, HF (Zhang, Haifeng); Zhang, ZH (Zhang, Zhaohui); Yang, HT (Yang, Hongtao); Wu, L (Wu, Li); Tang, LA (Tang, Linao); Zhu, Q (Zhu, Qing); Dong, S (Dong, Sen); Qin, MY (Qin, Maoyuan); Lei, YJ (Lei, Yangjie)
书籍团体作者: IEEE
来源出版物: PROCEEDINGS OF THE 2012 EIGHTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND SECURITY (CIS 2012)  页: 332-335  DOI: 10.1109/CIS.2012.81  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: In real-time imaging applications, the auto-focus algorithm and hardware structure must be adapted to the limited resources for fast and accurate real-time auto-focusing. In this paper, to obtain more precision, a new clarity evaluation function base on image's edge energy is proposed. Then, we present the corresponding FPGA hardware implementation which has simple structure. Additionally, utilizing the prior knowledge during the climbing process, a new climbing algorithm for the auto-focus which has the random start point is proposed. The experiment results show the proposed auto-focus algorithm can reduce the steps during the climbing and accelerate the auto-focus speed simultaneously.
文献类型: Proceedings Paper
会议名称: 8th International Conference on Computational Intelligence and Security (CIS)
会议日期: NOV 17-18, 2012
会议地点: Guangzhou, PEOPLES R CHINA
作者关键词: Auto-Focus; Edge Energy Evaluation Function; Climbing Algorithm; Real-Time
Web of Science 类别: Computer Science, Artificial Intelligence; Computer Science, Theory & Methods; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BEU99
ISBN: 978-0-7695-4896-8
________________________________________
第 27 条,共 65 条
标题: Infrared Image De-noising Based On K-SVD Over-complete Dictionaries Learning
作者: Shan, B (Shan, Bin); Hao, W (Hao, Wei); Zhao, R (Zhao, Rui)
编者: Chen Q; Cheng Q; Li Y; Zhang T; Wang L
来源出版物: 2012 5TH INTERNATIONAL CONGRESS ON IMAGE AND SIGNAL PROCESSING (CISP)  页: 316-320  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: The sparse representation of image based on overcomplete dictionaries is a new image representation theory. Using the redundancy of over-complete dictionaries can effectively capture the various structure detail characteristics of an image, so as to realize the efficient representation of the image. In this paper we propose an infrared image de-noising algorithm based on K-SVD over-complete dictionaries learning using the overcomplete dictionary image sparse representation theory. The experimental results compared with the common de-noising algorithm processing results prove the effectiveness of the proposed method.
文献类型: Proceedings Paper
会议名称: 5th International Congress on Image and Signal Processing (CISP)
会议日期: OCT 16-18, 2012
会议地点: Chongqing, PEOPLES R CHINA
会议主办方: Chongqing Univ Posts & Telecommunications
作者关键词: over-complete dictionaries; image de-noising; infrared noise
Web of Science 类别: Engineering, Electrical & Electronic
研究方向: Engineering
IDS 号: BEK12
ISBN: 978-1-4673-0964-6
________________________________________
第 28 条,共 65 条
标题: A Run-length Based Algorithm for Feature Extraction from Multi-target Image
作者: Zhang, K (Zhang, Kun); Hao, W (Hao, Wei); Xu, ZH (Xu, Zhaohui)
编者: Chen Q; Cheng Q; Li Y; Zhang T; Wang L
来源出版物: 2012 5TH INTERNATIONAL CONGRESS ON IMAGE AND SIGNAL PROCESSING (CISP)  页: 397-400  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: This paper presented a new run-length encoding based method of extracting features from multi-target image. The algorithm uses linked list structure to store data. The data are comprised of three parts, the message in run length, the equal values and the features of the image, which are in one-to-one mapping. While scanning, we only record the features of the image according to the label. After scanning the last pixel, we merge the linked list which contains the features of image according to the equal list. Compared with other approaches, the proposed one is faster and simpler, especially it can label the binary image exactly, no matter how complicated the image is.
文献类型: Proceedings Paper
会议名称: 5th International Congress on Image and Signal Processing (CISP)
会议日期: OCT 16-18, 2012
会议地点: Chongqing, PEOPLES R CHINA
会议主办方: Chongqing Univ Posts & Telecommunications
作者关键词: features extraction; run-length encoding; connected component labeling; equal list
Web of Science 类别: Engineering, Electrical & Electronic
研究方向: Engineering
IDS 号: BEK12
ISBN: 978-1-4673-0964-6
________________________________________
第 29 条,共 65 条
标题: Color Fusion Method for Low-Light-Level and Infrared Images in Night Vision
作者: Yang, SK (Yang, Shaokui); Liu, W (Liu, Wen); Deng, C (Deng, Chan); Zhang, X (Zhang, Xin); Yang, SK (Yang, Shaokui); Deng, C (Deng, Chan)
编者: Chen Q; Cheng Q; Li Y; Zhang T; Wang L
来源出版物: 2012 5TH INTERNATIONAL CONGRESS ON IMAGE AND SIGNAL PROCESSING (CISP)  页: 534-537  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: The fusion of low-light-level image and infrared image can increase the reliability of interpretation since it combines the complementary information in multispectral images, and that a color fused image can improve human observer performance and reaction times. To obtain a color night vision image by dual band sensors (visible and infrared), we first adopt the false color fusion scheme by principles of biological opponent-color vision, then transfer the first order statistics of a natural color image (target image) to the false color fused image in a perceptually decorrelated YCbCr color space. In order to give prominence to targets and details in the result, we produce a grayscale fused image using principal component analysis of the visible and infrared images, and substitute it for the Y component during the color transfer procedure. Finally, we illustrated an example of the whole fusing process. The realistic, colorful and natural fused image demonstrates validity of the method.
文献类型: Proceedings Paper
会议名称: 5th International Congress on Image and Signal Processing (CISP)
会议日期: OCT 16-18, 2012
会议地点: Chongqing, PEOPLES R CHINA
会议主办方: Chongqing Univ Posts & Telecommunications
作者关键词: false color fusion; color transfer; YCbCr color space; principal component analysis(PCA)
Web of Science 类别: Engineering, Electrical & Electronic
研究方向: Engineering
IDS 号: BEK12
ISBN: 978-1-4673-0964-6
________________________________________
第 30 条,共 65 条
标题: An Auto-focus Algorithm Based On Maximum Gradient And Threshold
作者: Mo, CH (Mo, Chunhong); Liu, B (Liu, Bo)
编者: Chen Q; Cheng Q; Li Y; Zhang T; Wang L
来源出版物: 2012 5TH INTERNATIONAL CONGRESS ON IMAGE AND SIGNAL PROCESSING (CISP)  页: 1191-1194  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: In order to overcome the disadvantages of the traditional auto-focus algorithms which are poor in real-time performance, weak in anti-noise capability and vulnerable to the influence of contrast and background pixels, this paper proposes an auto-focus algorithm based on maximum gradient and threshold. It introduces a threshold factor and takes a new kind of adaptive threshold to remove the pixels contaminated by noise and background in the image, then uses improved Sobel operators to extract maximum gray gradient after image preprocessing and calculates evaluation value. The experimental results show that the proposed algorithm has good real-time performance, strong unimodality, high sensitivity and strong anti-noise capability. In addition, the algorithm is less influenced by contrast and background pixels of the image. It can also control the sensitivity and focusing range of the focusing function. So the proposed algorithm is most suitable for auto-focus subsystem of video monitoring and tracking system.
文献类型: Proceedings Paper
会议名称: 5th International Congress on Image and Signal Processing (CISP)
会议日期: OCT 16-18, 2012
会议地点: Chongqing, PEOPLES R CHINA
会议主办方: Chongqing Univ Posts & Telecommunications
作者关键词: Auto-focus; Gradient; Threshold; Sensitivity; Anti-noise; Image Processing
Web of Science 类别: Engineering, Electrical & Electronic
研究方向: Engineering
IDS 号: BEK12
ISBN: 978-1-4673-0964-6
________________________________________
第 31 条,共 65 条
标题: Research on Motion Blurred Image Restoration
作者: Li, B (Li, Bing); Zhan, ZH (Zhan, ZhenHuan)
编者: Chen Q; Cheng Q; Li Y; Zhang T; Wang L
来源出版物: 2012 5TH INTERNATIONAL CONGRESS ON IMAGE AND SIGNAL PROCESSING (CISP)  页: 1307-1311  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Motion Blurred Image Restoration is an important part of the image processing. We begin with an analysis of the degradation model of motion-blurred images. In this paper, we introduce and compare several recovery algorithms. We select one of them for in-depth specific experiments. We have analyzed correctly the reason for motion blur simulation images, the relationship between the ringing effect and the selection of algorithm parameters for restoring images. Finally, we briefly analyze the reasons for poor quality in image restoration.
文献类型: Proceedings Paper
会议名称: 5th International Congress on Image and Signal Processing (CISP)
会议日期: OCT 16-18, 2012
会议地点: Chongqing, PEOPLES R CHINA
会议主办方: Chongqing Univ Posts & Telecommunications
作者关键词: Motion-blurred images; Wiener filter; Blind Restoration
Web of Science 类别: Engineering, Electrical & Electronic
研究方向: Engineering
IDS 号: BEK12
ISBN: 978-1-4673-0964-6
________________________________________
第 32 条,共 65 条
标题: Fabrication and Applications of GRIN materials
作者: Li, YL (Li Yulin); Hu, BW (Hu Baowen); He, ZQ (He Zhengquan); Zhang, MR (Zhang Minrui); Huo, JM (Huo Junmin); Yao, SL (Yao Shengli)
编者: Xiong JQ
来源出版物: ADVANCED MATERIALS AND INFORMATION TECHNOLOGY PROCESSING II  丛书: Advanced Materials Research  卷: 586  页: 215-220  DOI: 10.4028/www.scientific.net/AMR.586.215  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: In recent years, a series of gradient index (GRIN) materials including Optical glass and polymer have been Research and developed in our laboratory. The Micro-lenses and arrays with the special optical materials also have been fabricated mainly by using Ion-exchange method through refractive index profile, which are applied to micro-optic devices and other applications-especially in the coupled and connected devices for fiber communications and medical endoscope or they are used primarily for document scanning equipments.
文献类型: Proceedings Paper
会议名称: 2nd International Conference on Advanced Materials and Information Technology Processing (AMITP 2012)
会议日期: OCT 17-18, 2012
会议地点: Taipei, TAIWAN
作者关键词: Gradient index material; Ion exchange; Micro-optical devices; GRIN lenses; Micro-structure; Optical device
KeyWords Plus: LENSES
Web of Science 类别: Materials Science, Multidisciplinary
研究方向: Materials Science
IDS 号: BEO31
ISSN: 1022-6680
ISBN: 978-3-03785-523-2
________________________________________
第 33 条,共 65 条
标题: Focusing Properties of the Visible Light Wave through Plasmonic Lenses with Subwavelength Chirped Slits
作者: Feng, D (Feng, Di); Zhang, CX (Zhang, Chunxi); Yang, YH (Yang, Yuanhong)
编者: Xiong JQ
来源出版物: ADVANCED MATERIALS AND INFORMATION TECHNOLOGY PROCESSING II  丛书: Advanced Materials Research  卷: 586  页: 356-362  DOI: 10.4028/www.scientific.net/AMR.586.356  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Focusing properties of a new kind of plasmonic lenses are investigated in the visible wavelength range through a subwavelength metallic chirped slit arrays which have the same depth but chirped widths. The chirped widths of slits are like a piece-wise-linear distribution which will be approximated by linearly increasing the width of a subwavelength feature and can build up a required phase front for focusing. We analyzed the focusing characteristics of different metallic lenses (silver and gold, respectively) with chirped widths that are obtained by generalizing the relevant phase delay for TE- and TM-polarized incident waves, for different f-numbers of lenses and for different material thickness, respectively. Meanwhile, the comparison of the metallic and dielectric lenses is also presented. The results of calculations show that, the metallic lenses are more sensitive to the polarization of incidence wave than that of dielectric lenses, and can get narrower full-width half-maximum (FWHM) beam width than that of dielectric lenses for TM-polarized incident waves, respectively. No matter which f-number we choose, the FWHM of dielectric lenses are higher than the plasmonic lenses, and the plasmonic lenses can get a higher focal resolution than dielectric lenses do. This kind of plasmonic lenses should have a good potential for applications in photonic and plasmonic integrated devices, sensing, and nano-optical manipulations, etc.
文献类型: Proceedings Paper
会议名称: 2nd International Conference on Advanced Materials and Information Technology Processing (AMITP 2012)
会议日期: OCT 17-18, 2012
会议地点: Taipei, TAIWAN
作者关键词: Subwavelength structures; Focus; Surface plasmons polaritons; Plasmonic lens
Web of Science 类别: Materials Science, Multidisciplinary
研究方向: Materials Science
IDS 号: BEO31
ISSN: 1022-6680
ISBN: 978-3-03785-523-2
________________________________________
第 34 条,共 65 条
标题: Real-time Three-dimensional Object Capturing and Mapping with Optical Correlators
作者: He, ZQ (He Zhengquan); Li, YL (Li Yulin); Huang, XS (Huang Xiangsheng); Kong, DP (Kong Depong); Zhang, MR (Zhang Minrui); Guo, XY (Guo Xiaoyi)
编者: Xiong JQ
来源出版物: ADVANCED MATERIALS AND INFORMATION TECHNOLOGY PROCESSING II  丛书: Advanced Materials Research  卷: 586  页: 374-377  DOI: 10.4028/www.scientific.net/AMR.586.374  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: In this paper a new strategy for real-time three-dimensional object capturing and mapping is proposed by using optical correlators. A spatial light modulator is applied in the new strategy. Owing to the properties of quickly parallel processing of optical correlation algorithm the technique can also implement real time object capturing and track, and, as for human body recognition the gesture of body parts can also be portrayed.
文献类型: Proceedings Paper
会议名称: 2nd International Conference on Advanced Materials and Information Technology Processing (AMITP 2012)
会议日期: OCT 17-18, 2012
会议地点: Taipei, TAIWAN
作者关键词: Three-dimensional objects; optical correlator; SLM; mapping and ranging measurement; speckle pattern; convolution
KeyWords Plus: JOINT TRANSFORM CORRELATOR
Web of Science 类别: Materials Science, Multidisciplinary
研究方向: Materials Science
IDS 号: BEO31
ISSN: 1022-6680
ISBN: 978-3-03785-523-2
________________________________________
第 35 条,共 65 条
标题: Calculations on Optical Path Difference of a Reflecting Scanning Fourier Transform Spectrometry based on cube Reflector
作者: Zhang, XJ (Zhang, Xin Jie); Yang, XX (Yang, Xiao Xu); Wang, WF (Wang, Wen Fang)
编者: Zhang C; Lin PP
来源出版物: VIBRATION, STRUCTURAL ENGINEERING AND MEASUREMENT II, PTS 1-3  丛书: Applied Mechanics and Materials  卷: 226-228  页: 1951-1957  DOI: 10.4028/www.scientific.net/AMM.226-228.1951  子辑: 1-3  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Compared with normal reflecting scanning transform Spectrometry, cube-based Spectrometr is a key component in the time-based modulation interference spectrometer, it have more compact structure,using less accessory, easy to fix up, more steadily and more practicality. Calculations on optical path difference (OPD) of spectrometry play an important role in analyzing and improving of the structure. Following the law of Malus and the geometrical relationship of model, get the formula of OPD and the affective factors. The calculation results demonstrate that OPD is closely related to the tilted angel of rotating reflector, the size of cube reflector and the refractive index of reflector. And this kind of spectrometry has the character of high resolution, especial in some spectrum.
文献类型: Proceedings Paper
会议名称: International Conference on Vibration, Structural Engineering and Measurement (ICVSEM2012)
会议日期: OCT 19-21, 2012
会议地点: Shanghai, PEOPLES R CHINA
作者关键词: Optical path difference; Geometry; Cube reflector; Spectrometry; Rotating mirror
Web of Science 类别: Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
研究方向: Engineering; Materials Science; Mechanics
IDS 号: BEF27
ISSN: 1660-9336
ISBN: 978-3-03785-507-2
________________________________________
第 36 条,共 65 条
标题: Design and Analysis of Flexure Hinge in the Double Crystal Monochromator
作者: Zhao, XG (Zhao, Xiangguo); Zhou, SZ (Zhou, Sizhong); Jiang, B (Jiang, Bo); Jiang, K (Jiang, Kai); Mei, C (Mei, Chao)
编者: Zhang C; Lin PP
来源出版物: VIBRATION, STRUCTURAL ENGINEERING AND MEASUREMENT II, PTS 1-3  丛书: Applied Mechanics and Materials  卷: 226-228  页: 2175-2180  DOI: 10.4028/www.scientific.net/AMM.226-228.2175  子辑: 1-3  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: This paper analyzes the relationship between the parameters of CFH (Cosine Flexure Hinge) and the adjustable angle in the measurement and micro-adjustment of yaw, pitch and roll angle in the DCM (Double Crystal Monochromator). We derive the motion equations of CFH during the measurement and adjustment process, and get accurate expression formulas. Then we use ANSYS software to simulate the CFH and compare the simulation value and the theoretical value. It shows that the maximum angular deflection error is less than 3.5 percent. We compare the CFH to the RCFH (Right Circular Flexure Hinge); and get that the maximum angular deflection theta(y) and the linear displacements of RCFH are all about 1.56 times than the CFH when the parameters are equivalent. Therefore, we provide a simple flexure hinge to improve the stability and accuracy of angular measurement and micro- adjustment in the DCM.
文献类型: Proceedings Paper
会议名称: International Conference on Vibration, Structural Engineering and Measurement (ICVSEM2012)
会议日期: OCT 19-21, 2012
会议地点: Shanghai, PEOPLES R CHINA
作者关键词: Cosine flexure hinge; Double crystal monochromator; Precision engineering measurement; Finite element
Web of Science 类别: Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
研究方向: Engineering; Materials Science; Mechanics
IDS 号: BEF27
ISSN: 1660-9336
ISBN: 978-3-03785-507-2
________________________________________
第 37 条,共 65 条
标题: Design and optimize the supporting structure of Large-diameter lightweight mirror
作者: Chai, WY (Chai, WenYi); Xie, YJ (Xie, YongJie); Wang, W (Wang, Wei); Wu, MY (Wu, MengYuan); Fan, XW (Fan, XueWu)
编者: Guo J
来源出版物: INDUSTRIAL DESIGN AND MECHANICAL POWER  丛书: Applied Mechanics and Materials  卷: 224  页: 170-173  DOI: 10.4028/www.scientific.net/AMM.224.170  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: This paper describe design and optimize of the lightweight primary mirror assemblies for the space telescope, aim at supporting structure of the primary mirror with an aperture of 530mm for the Cassegrain optical. We design three kinds of flexible support structure for the mirror, and numerical simulation analysis the accuracy of reflective shape for mirror assemblies on the ground test and in-orbit work environment, compare the results of analysis and optimize parameters of flexible structure, determine the final project and put it into production. The results show that the component should be aligned and tested in the same direction of the mirror optical axis and the gravity, the accuracy of reflective shape is PV<lambda/25 and RMS<lambda/125 (lambda = 632.8nm), under the state of Delta 4 degrees C temperature change, the RMS<lambda/234 (lambda = 632.8nm), the project meet design requirements of the optical system.
文献类型: Proceedings Paper
会议名称: International Conference on Industrial Design and Mechanical Power (ICIDMP 2012)
会议日期: JUL 10-11, 2012
会议地点: Huangshan, PEOPLES R CHINA
作者关键词: Large-diameter; lightweight; the primary mirror assemblies; flexible support; finite element analysis
Web of Science 类别: Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
研究方向: Engineering; Materials Science; Mechanics
IDS 号: BEE80
ISSN: 1660-9336
ISBN: 978-3-03785-505-8
________________________________________
第 38 条,共 65 条
标题: Research on Object Signal Sampling and Reconstruction Based on Laser Beat Frequency
作者: Zhang, Y (Zhang, Yu); Luo, XJ (Luo, Xiujuan); Cao, B (Cao, Bei); Xia, AL (Xia, Aili); Si, QD (Si, Qingdan)
编者: Guo H
来源出版物: 2012 INTERNATIONAL WORKSHOP ON INFORMATION AND ELECTRONICS ENGINEERING  丛书: Procedia Engineering  卷: 29  页: 2421-2426  DOI: 10.1016/j.proeng.2012.01.325  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: The observation of an object traditionally relies on the scale of optical system and the resolution is often limited by the diameter of telescope. Based on the laser interference technology, we adopt a new signal sampling method with which we sample the spectrum information by laser beat frequency. The overlapped beams interfere together and generate a series of fringes across the target. Different spectrum components of target are sampled by fringes with different spatial frequency. Then we will reconstruct the target image through inverse Fourier Transform. This method break through the difficulty that observation resolution was limited by the scale of optical system. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Harbin University of Science and Technology
文献类型: Proceedings Paper
会议名称: International Workshop on Information and Electronics Engineering (IWIEE) / International Conference on Information, Computing and Telecommunications (ICICT)
会议日期: MAR 10-11, 2012
会议地点: Harbin, PEOPLES R CHINA
作者关键词: Laser interference; Spectrum sampling; Image reconstruction
Web of Science 类别: Engineering, Mechanical
研究方向: Engineering
IDS 号: BDP99
ISSN: 1877-7058
________________________________________
第 39 条,共 65 条
标题: Particle Filter with Fine Resampling for Bearings-Only Tracking
作者: Cao, B (Cao, Bei); Ma, CW (Ma, Caiwen); Liu, ZT (Liu, Zhentao)
编者: Guo H
来源出版物: 2012 INTERNATIONAL WORKSHOP ON INFORMATION AND ELECTRONICS ENGINEERING  丛书: Procedia Engineering  卷: 29  页: 3685-3690  DOI: 10.1016/j.proeng.2012.01.553  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 1
被引频次合计: 2
摘要: To solve the nonlinear filtering problem in the Bearings-Only Tracking (BOT), an improved particle filter with fine resampling is proposed, called as PF-FR (Particle Filter with Fine Resampling). By introducing distance-comparing process and generating new particle based on optimized combination scheme, PF-FR filter performs better than generic PF-SIR filter both in terms of effectiveness and diversity of the particle system, hence, evidently enhancing tracking accuracy in bearings-only tracking problem. Simulations indicate that the proposed PF-FR algorithm is effective. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Harbin University of Science and Technology
文献类型: Proceedings Paper
会议名称: International Workshop on Information and Electronics Engineering (IWIEE) / International Conference on Information, Computing and Telecommunications (ICICT)
会议日期: MAR 10-11, 2012
会议地点: Harbin, PEOPLES R CHINA
作者关键词: particle filter; bearings-only tracking; fine resampling; optimized combination
Web of Science 类别: Engineering, Mechanical
研究方向: Engineering
IDS 号: BDP99
ISSN: 1877-7058
________________________________________
第 40 条,共 65 条
标题: Design of The Autocollimator Interface Based on TMS320F2812
作者: Gao, LN (Gao Li-na); Hu, XD (Hu Xiao-dong)
编者: Zhong Y
来源出版物: ADVANCES IN COMPUTING, CONTROL AND INDUSTRIAL ENGINEERING  丛书: Applied Mechanics and Materials  卷: 235  页: 164-169  DOI: 10.4028/www.scientific.net/AMM.235.164  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: In order to convenient the design of the autocollimator interface, this paper introduces the design of hardware and software of the autocollimator interface, and detailed analysis some key links The SPI extension module (EEPROM) based on abundance on-chip resource of TMS320F2812 DSP is used to storage the equivalent of misalignment angle; The CAN extension module (CAN bus) based on CAN module is used to communicate with other computers; SCI extension module (RS232) is used which is convenient for the system debugging, and extension interfaces are left. Meanwhile, the corresponding design of software is also given in the paper. Prototype tests show that the design of the autocollimator interface can fully satisfy the requirements of the system. The design experience can be referred in similar engineering.
文献类型: Proceedings Paper
会议名称: 3rd International Conference on Computing, Control and Industrial Engineering (CCIE 2012)
会议日期: OCT 27-28, 2012
会议地点: Wuhan, PEOPLES R CHINA
作者关键词: Autocollimator; Tms320f2812; EEPROM; CAN Bus; RS232
Web of Science 类别: Automation & Control Systems; Engineering, Manufacturing
研究方向: Automation & Control Systems; Engineering
IDS 号: BEE79
ISSN: 1660-9336
ISBN: 978-3-03785-520-1
________________________________________
第 41 条,共 65 条
标题: Design and Performance Experiment of Ultraviolet Off-axis TMA System
作者: Feng, LJ (Feng Liangjie); Wang, CJ (Wang Chenjie); Fan, XW (Fan Xuewu); Zhang, HS (Zhang Haosu); Pang, ZH (Pang Zhihai)
编者: Zhang Y; Xiang L; To S
来源出版物: 6TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTICAL TEST AND MEASUREMENT TECHNOLOGY AND EQUIPMENT  丛书: Proceedings of SPIE  卷: 8417  文献号: 84173S  DOI: 10.1117/12.978644  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: The limb UV radiation detection provides the information of atmosphere ultraviolet spectrum, so as to acquire the high resolution vertical distribution information of atmospheric trace gases and aerosol. Off-axis Three-mirror Anastigmat (TMA) system is adopted in limb UV radiation detection to increase horizontal space coverage. In this paper, opto-mechanical design of the system is introduced, and camera alignment is completed by computer aiding, then optical, mechanical and electrical combination as well as the optical performance test are carried out with the UV Image Intensifier. The camera's wavefront error of each field is close to design value after alignment, the resolution reaches 140lp/mm in visible light band, and 20lp/mm in UV band, which reaches the design limit of the UV Image Intensifier, the optical system could well meet the operational requirement.
文献类型: Proceedings Paper
会议名称: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optical Test and Measurement Technology and Equipment
会议日期: APR 26-29, 2012
会议地点: Xiamen, PEOPLES R CHINA
作者关键词: Off-axis TMA system; optical system; UV image intensifier; resolution
Web of Science 类别: Optics
研究方向: Optics
IDS 号: BDE72
ISSN: 0277-786X
ISBN: 978-0-8194-9099-5
________________________________________
第 42 条,共 65 条
标题: New measurement of the alignment of the deployable telescope
作者: Feng, XG (Feng Xuegui); Li, C (Li Chuang); Zhao, C (Zhao Chao)
编者: Zhang Y; Xiang L; To S
来源出版物: 6TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTICAL TEST AND MEASUREMENT TECHNOLOGY AND EQUIPMENT  丛书: Proceedings of SPIE  卷: 8417  文献号: 841735  DOI: 10.1117/12.977843  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: As one type of the deployable telescope, the deployable space telescope under researching uses tape springs as the support structure of secondary mirror. Before launch, the support structure of secondary mirror is folded, and when on orbit the structure is deployed. Usually the secondary mirror is not on the nominal position after deploying, so the alignment of the secondary mirror is needed. To achieve this we need to obtain the deployment errors. So the measuring of secondary mirror deployment errors of thus deployable telescope is an important topic. In this paper, we designed an accurate measuring system based on position sensitive detectors (PSDs) to measure the deployment errors, through measuring the six-degree-of-freedom motions of the secondary mirror. The measuring system contains 3 two-dimensional PSDs, 3 laser diodes and 3 small mirrors. In order to resolve the deployment errors, the equations linking the PSD readings and the six-degree-of-freedom displacement of the secondary mirror were deduced. These equations are solved through a numerical method. Finally, we did measuring experiments on a deployable prototype. The experimental results show that this deployable prototype has deployment errors about 100um.
文献类型: Proceedings Paper
会议名称: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optical Test and Measurement Technology and Equipment
会议日期: APR 26-29, 2012
会议地点: Xiamen, PEOPLES R CHINA
作者关键词: Deployable space telescope; secondary mirror; 3-dimensional pose; position sensitive detector
Web of Science 类别: Optics
研究方向: Optics
IDS 号: BDE72
ISSN: 0277-786X
ISBN: 978-0-8194-9099-5
________________________________________
第 43 条,共 65 条
标题: The computer-aided alignment study of three-mirror off-axis field bias optical system
作者: Pang, ZH (Pang Zhi-hai); Fan, XW (Fan Xue-wu); Ma, Z (Ma Zhen); Chen, QF (Chen Qin-fang)
编者: Zhang Y; Xiang L; To S
来源出版物: 6TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTICAL TEST AND MEASUREMENT TECHNOLOGY AND EQUIPMENT  丛书: Proceedings of SPIE  卷: 8417  文献号: 84170L  DOI: 10.1117/12.970651  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Determine the misalignment of optical element quickly and exactly is the key to the technology of computer-aided alignment (CAA). For alignment a three-mirror off-axis field bias system, the sensitivity matrix method was used to simulate the alignment process. The results of simulation show that the sensitivity matrix method was not convergence. A new CAA method to get misalignment was put forward; the misalignment was obtained by programming the function of optical design software CODE V's auto-optimization option. The system's alignment characteristic was analysis and made use of this new method put up a computer simulation. The results of simulation show that the misalignment determined by only once auto-optimization and guidable to alignment of this system. After alignment, the optical system produced a measured wave front error across the all image plane less than 0.08 waves RMS at lambda=0.6328 mu m.
文献类型: Proceedings Paper
会议名称: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optical Test and Measurement Technology and Equipment
会议日期: APR 26-29, 2012
会议地点: Xiamen, PEOPLES R CHINA
作者关键词: Computer-aided alignment; Sensitivity matrix; Misalignment; Auto-Optimization; Three-mirror off-axis field bias system
Web of Science 类别: Optics
研究方向: Optics
IDS 号: BDE72
ISSN: 0277-786X
ISBN: 978-0-8194-9099-5
________________________________________
第 44 条,共 65 条
标题: Improvement of beam quality in the far-field of annular core optical fibers by realizing single-mode operation
作者: Hui, XY (Hui, Xiangyun); Duan, KL (Duan, Kailiang)
编者: Jiang Y; Yu J; Wang Z
来源出版物: 6TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTOELECTRONIC MATERIALS AND DEVICES FOR SENSING, IMAGING, AND SOLAR ENERGY  丛书: Proceedings of SPIE  卷: 8419  文献号: 841931  DOI: 10.1117/12.975961  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: We have improved the beam quality by realizing single-mode operation in the annular core optical fibers (ACF), and discuss the relations between single-mode and its design parameters. Moreover the effect of the thickness of the guiding section on the energy distribution in the far-field is analyzed. With proper parameters design, more than 99% of the annular light emitted from ACF could be centralized at a bright spot in the far-field. These results may provide a theoretical guidance for the design and application of ACF.
文献类型: Proceedings Paper
会议名称: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy
会议日期: APR 26-29, 2012
会议地点: Xiamen, PEOPLES R CHINA
作者关键词: annular core optical fibers; single-mode; far-field; energy distribution
KeyWords Plus: POWER
Web of Science 类别: Energy & Fuels; Engineering, Electrical & Electronic; Optics
研究方向: Energy & Fuels; Engineering; Optics
IDS 号: BDE26
ISSN: 0277-786X
ISBN: 978-0-8194-9101-5
________________________________________
第 45 条,共 65 条
标题: Electric field distribution characteristics of photoconductive antennas
作者: Zou, SW (Zou, Sheng-Wu); Zhang, TY (Zhang, Tong-Yi)
编者: Jiang Y; Yu J; Wang Z
来源出版物: 6TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTOELECTRONIC MATERIALS AND DEVICES FOR SENSING, IMAGING, AND SOLAR ENERGY  丛书: Proceedings of SPIE  卷: 8419  文献号: 84190A  DOI: 10.1117/12.956431  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Photoexcitation of biased semiconductor photoconductive antennas by femtosecond pulses is the most common and convenient technique for generating strong terahertz (THz) pulses. In this paper, we use the three-dimensional (3D) finite-difference-time-domain (FDTD) to analyze electric field distribution of THz pulses in the near-field from a photoconductive antenna. The simulation is based on solving Maxwell's equations and the carrier rate equations simultaneously on realistic dipole antenna structures. The 3D FDTD simulation gives detailed features of THz electric field distribution in and out of the antenna. It is found that the difference of near-field distribution between the substrate and free space is considerably large. The fields of the alternating-current dipole exhibit an unsymmetrical distribution and a large deviation from those calculated using the simple Hertzian dipole theory. The magnitude of THz field in and out of the substrate attenuates rapidly while it holds the line in the gap center. The high-frequency components of THz radiation emission come only from the dipole antenna, while the low-frequency components are from both the center electrodes and coplanar stripline waveguide. This work can be used to optimize the design of antenna geometry and raise the radiation field power.
文献类型: Proceedings Paper
会议名称: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy
会议日期: APR 26-29, 2012
会议地点: Xiamen, PEOPLES R CHINA
作者关键词: Photoconductive antennas; FDTD; electric field distribution
KeyWords Plus: ELECTROMAGNETIC PULSES; TERAHERTZ RADIATION; GENERATION; BEAMS; GAAS
Web of Science 类别: Energy & Fuels; Engineering, Electrical & Electronic; Optics
研究方向: Energy & Fuels; Engineering; Optics
IDS 号: BDE26
ISSN: 0277-786X
ISBN: 978-0-8194-9101-5
________________________________________
第 46 条,共 65 条
标题: All-Fiber 40GHz Femtosecond Pulse Train Source
作者: Tang, DK (Tang, Dingkang); Zhang, JG (Zhang, Jianguo); Liu, YS (Liu, Yuanshan)
编者: Wei K; Yang Y
来源出版物: OPTICAL, ELECTRONIC MATERIALS AND APPLICATIONS II  丛书: Advanced Materials Research  卷: 529  页: 169-172  DOI: 10.4028/www.scientific.net/AMR.529.169  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: We experimentally demonstrate an all-fiber method to generate a high-quality femtosecond pulse train with a repetition rate of 40GHz. A continuous wavelength laser together with an intensity modulator is used to generate an initial pulse train with a repetition rate of 40GHz. Highly nonlinear fiber (HNLF) together with single mode fiber is utilized to compress the initial pulse from 7.8ps to 985fs. The autocorrelation trace has a good sech 2 profile with no pedestal. This pulse source has a potential to be multiplexed to a higher repetition rate for its narrow pulse width. This method is high-quality, cost-effective and can be easily integrated with the fiber system.
文献类型: Proceedings Paper
会议名称: 2nd International Conference on Optical, Electronic Materials and Applications (OEMA 2012)
会议日期: MAY 25-26, 2012
会议地点: Chongqing, PEOPLES R CHINA
作者关键词: High Speed Pulse Source; Femtosecond Laser; Optical Communication; Highly Nonlinear Fiber
KeyWords Plus: DISPERSION-DECREASING FIBER; 160GBIT/S OTDM; GENERATION; TRANSMISSION; COMPRESSION
Web of Science 类别: Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics
研究方向: Engineering; Materials Science; Optics
IDS 号: BDA22
ISSN: 1022-6680
ISBN: 978-3-03785-430-3
________________________________________
第 47 条,共 65 条
标题: Thermal Management for CCD Peformance of One Space Telescope
作者: Yang, WG (Yang Wengang); Wang, YH (Wang Yinghao); Feng, LJ (Feng Liangjie); Wang, CJ (Wang Chenjie); Ren, GR (Ren Guorui); Wang, W (Wang Wei); Li, C (Li Chuang); Gao, W (Gao Wei); Fan, XW (Fan Xuewu)
编者: Lin X; Namba Y; Xing T
来源出版物: 6TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTICAL SYSTEM TECHNOLOGIES FOR MANUFACTURING AND TESTING  丛书: Proceedings of SPIE  卷: 8420  文献号: 84200P  DOI: 10.1117/12.971510  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: A space telescope containing two CCD cameras is being built for scientific observation. The CCD detectors need to operate at a temperature below -65 degrees C in order to avoid unacceptable dark current. This cooling is achieved through detailed thermal design which minimizes the parasitic load to 2Kx4K array with 13.5 micron pixels and cools this detector with a combination of thermo electric cooler(TEC).
This paper will describe detailed thermal design necessary to maintain the CCD at its cold operating temperature while providing the means to reject the heat generated by the TECs. It will focus on optimized techniques developed to manage parasitic loads including material selection, surface finishes and thermal insulation. The paper will also address analytical techniques developed to characterize TEC performance. Finally, analysis results have been shown the temperature of key parts.
文献类型: Proceedings Paper
会议名称: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT) - Optical System Technologies for Manufacturing and Testing
会议日期: APR 26-29, 2012
会议地点: Xiamen, PEOPLES R CHINA
作者关键词: Thermal design; CCD; thermo-electric cooling
Web of Science 类别: Optics
研究方向: Optics
IDS 号: BCZ64
ISSN: 0277-786X
ISBN: 978-0-8194-9102-2
________________________________________
第 48 条,共 65 条
标题: Theoretical energy distributions of electrons from a large exponential-doping GaAs photocathode
作者: Cai, ZP (Cai, Zhipeng); Yang, WZ (Yang, Wenzheng); Tang, WD (Tang, Weidong); Hou, X (Hou, Xun)
编者: Bu JL; Jiang ZY; Jiao S
来源出版物: ADVANCED MATERIALS, PTS 1-3  丛书: Advanced Materials Research  卷: 415-417  页: 1302-1305  DOI: 10.4028/www.scientific.net/AMR.415-417.1302  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Theoretical calculation indicates that the large exponential-doping GaAs photocathodes have a much narrower electron energy distribution than traditional GaAs NEA cathodes, and the excellent performance attributes to the special structure characters of the band-bending region and lower negative electron affinity of the new-type GaAs photocathodes. The effects of surface doping concentration and work function on the energy distribution are discussed in details, and the FWHM of the energy distribution is less than 100meV. The simulation results indicate that the large exponential-doping mode further improves the features of the electron energy spreads for GaAs photocathodes, which may meet the further demand of next generation of electron guns.
文献类型: Proceedings Paper
会议名称: 2nd International Conference on Advances in Materials and Manufacturing Processes (ICAMMP 2011)
会议日期: DEC 16-18, 2011
会议地点: Guilin, PEOPLES R CHINA
作者关键词: Energy distribution; large exponential-doping; GaAs photocathodes
KeyWords Plus: CHARGE LIMIT
Web of Science 类别: Materials Science, Multidisciplinary
研究方向: Materials Science
IDS 号: BCD85
ISSN: 1022-6680
ISBN: 978-3-03785-325-2
________________________________________
第 49 条,共 65 条
标题: The Time Response of Exponential Doping NEA InGaAs Photocathode Applied to Near Infrared Streak Cameras
作者: Tang, WD (Tang, Weidong); Yang, WZ (Yang, Wenzheng); Cai, ZP (Cai, Zhipeng); Sun, CD (Sun, Chuandong)
编者: Bu JL; Jiang ZY; Jiao S
来源出版物: ADVANCED MATERIALS, PTS 1-3  丛书: Advanced Materials Research  卷: 415-417  页: 1403-1406  DOI: 10.4028/www.scientific.net/AMR.415-417.1403  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 1
摘要: An exponential doping NEA InGaAs photocathode is theoretically proposed to apply in the near infrared streak camera. The photocathode time response is calculated and analyzed by using a photoelectron non-steady method. The numerical results show that the excited electrons in the In GaAs active layer is accelerated due to the built-in electric field induced by the exponential doping structure, which shortens the transport time of minority carriers in the photocathode and thus, the time response is greatly improved. In addition, the exponential doping InGaAs photocathode possesses time response of less than 10 picoseconds and near-infrared quantum efficiency of 10%.
文献类型: Proceedings Paper
会议名称: 2nd International Conference on Advances in Materials and Manufacturing Processes (ICAMMP 2011)
会议日期: DEC 16-18, 2011
会议地点: Guilin, PEOPLES R CHINA
作者关键词: InGaAs photocathode; exponential doping; near infrared; time response; streak camera
Web of Science 类别: Materials Science, Multidisciplinary
研究方向: Materials Science
IDS 号: BCD85
ISSN: 1022-6680
ISBN: 978-3-03785-325-2
________________________________________
第 50 条,共 65 条
标题: The Study on Image Compression Methods
作者: Chen, Z (Chen, Zhi); Qiu, YH (Qiu, Yuehong)
编者: Luo J
来源出版物: AFFECTIVE COMPUTING AND INTELLIGENT INTERACTION  丛书: Advances in Intelligent and Soft Computing  卷: 137  页: 277-283  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Because of the higher resolution, the data volume of remote sensing image is very large. To communicate and use them on network, efficient compression is very important. In this study, we present the main subjects in the theory of data compression and some image compression methods.
文献类型: Proceedings Paper
会议名称: International Conference on Affective Computing and Intelligent Interaction (ICACH 2012)
会议日期: FEB 27-28, 2012
会议地点: Taipei, TAIWAN
作者关键词: image compression; JPEG2000; remote sensing image; CCSDS
Web of Science 类别: Computer Science, Artificial Intelligence; Computer Science, Interdisciplinary Applications
研究方向: Computer Science
IDS 号: BCP14
ISSN: 1867-5662
ISBN: 978-3-642-27865-5
________________________________________
第 51 条,共 65 条
标题: Geometry Constrained Sparse Coding for Single Image Super-resolution
作者: Lu, XQ (Lu, Xiaoqiang); Yuan, HL (Yuan, Haoliang); Yan, PK (Yan, Pingkun); Yuan, Y (Yuan, Yuan); Li, XL (Li, Xuelong)
书籍团体作者: IEEE
来源出版物: 2012 IEEE CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION (CVPR)  丛书: IEEE Conference on Computer Vision and Pattern Recognition  页: 1648-1655  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 11
被引频次合计: 11
摘要: The choice of the over-complete dictionary that sparsely represents data is of prime importance for sparse coding based image super-resolution. Sparse coding is a typical unsupervised learning method to generate an over-complete dictionary. However, most of the sparse coding methods for image super-resolution fail to simultaneously consider the geometrical structure of the dictionary and corresponding coefficients, which may result in noticeable super-resolution reconstruction artifacts. In this paper, a novel sparse coding method is proposed to preserve the geometrical structure of the dictionary and the sparse coefficients of the data. Moreover, the proposed method can preserve the incoherence of dictionary entries, which is critical for sparse representation. Inspired by the development on non-local self-similarity and manifold learning, the proposed sparse coding method can provide the sparse coefficients and learned dictionary from a new perspective, which have both reconstruction and discrimination properties to enhance the learning performance. Extensive experimental results on image super-resolution have demonstrated the effectiveness of the proposed method.
文献类型: Proceedings Paper
会议名称: IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
会议日期: JUN 16-21, 2012
会议地点: Providence, RI
Web of Science 类别: Computer Science, Artificial Intelligence; Computer Science, Interdisciplinary Applications; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BBZ37
ISSN: 1063-6919
ISBN: 978-1-4673-1228-8
________________________________________
第 52 条,共 65 条
标题: Detection of Electromagnetic Pulse induced Hazard on Electroexplosive Device Based on Optical-fiber Fluorescence
作者: Liu, LS (Liu Lan-shu); Zhang, WS (Zhang Wen-song); Zhu, XP (Zhu Xiang-ping)
编者: Fan W
来源出版物: MANUFACTURING SCIENCE AND TECHNOLOGY, PTS 1-8  丛书: Advanced Materials Research  卷: 383-390  页: 7492-7495  DOI: 10.4028/www.scientific.net/AMR.383-390.7492  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: The electroexplosive devices(EED) are widely used in the core system of rocket, missile and nuclear weapons. Hazard analysis and measurement of electromagnetic pulse is of great importance to the security and reliability of EED. In this article, an optical-fiber fluorescence temperature sensor is proposed for analyzing hazard induced by electromagnetic pulse of EED. The temperature of EED can be measured through the fluorescence lifetime, then the induced current is obtained, and thereby the electromagnetic pulse induced hazard can be draw. The experiments show that, the set-up of this proposal can works with high precision and fast response, and immune to the electromagnetic interference.
文献类型: Proceedings Paper
会议名称: International Conference on Manufacturing Science and Technology (ICMST 2011)
会议日期: SEP 16-18, 2011
会议地点: Singapore, SINGAPORE
作者关键词: Electroexplosive device; Hazard of electromagnetic pulse; Fluorescent lifetime; Induced current
Web of Science 类别: Computer Science, Interdisciplinary Applications; Engineering, Manufacturing; Engineering, Mechanical; Materials Science, Multidisciplinary
研究方向: Computer Science; Engineering; Materials Science
IDS 号: BBY99
ISSN: 1022-6680
ISBN: 978-3-03785-295-8
________________________________________
第 53 条,共 65 条
标题: MULTI-FRAME IMAGE SUPER-RESOLUTION BASE ON GRADIENT VECTOR FLOW
作者: Zhou, ZF (Zhou, Zuofeng); Cao, JZ (Cao, Jianzhong); Wang, H (Wang, Hao)
书籍团体作者: ASME
来源出版物: 2011 3RD INTERNATIONAL CONFERENCE ON COMPUTER TECHNOLOGY AND DEVELOPMENT (ICCTD 2011), VOL 2  页: 307-311  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Multi-frame super-resolution reconstruction aims to fuse several low resolution images into one image with high optical resolution. In this paper, a new regularization-based multi-frame image super-resolution algorithm is presented. Utilizing the gradient directional information, the proposed algorithm uses the gradient vector flow to measure the gradient consistency between the high-resolution image and low-resolution images. Experiment results show that the proposed algorithm achieves better performance than other multi-frame image super-resolution methods.
文献类型: Proceedings Paper
会议名称: 3rd International Conference on Computer Technology and Development (ICCTD 2011)
会议日期: NOV 25-27, 2011
会议地点: Chengdu, PEOPLES R CHINA
作者关键词: Multi-frame Super Resolution; Regularization; Gradient Vector Flow
KeyWords Plus: RECONSTRUCTION
Web of Science 类别: Computer Science, Interdisciplinary Applications
研究方向: Computer Science
IDS 号: BBN38
ISBN: 978-0-7918-5991-9
________________________________________
第 54 条,共 65 条
标题: Research and Design of Color Restoration Algorithm for Demosaicing Bayer Pattern Images
作者: Zhu, B (Zhu, Bo); Wen, DS (Wen, Desheng); Gao, W (Gao, Wei); Song, ZX (Song, Zongxi); Li, H (Li, Hua)
编者: Zhao H
来源出版物: MECHANICAL AND ELECTRONICS ENGINEERING III, PTS 1-5  丛书: Applied Mechanics and Materials  卷: 130-134  页: 745-751  DOI: 10.4028/www.scientific.net/AMM.130-134.745  子辑: 1-5  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: This paper analyses the process of obtaining real color image based on a single CCD/CMOS sensor. Bayer CFA Interpolation algorithm and White Balance algorithm are presented. The proposed interpolation algorithm which can obtain better color image and is easier to implement by hardware is provided. In order to cancel chromatic aberration, one White Balance algorithm which aims at sequential image is presented and process of FPGA design is given. Experimental results show that the design works normally. The color of corrected picture is vivid compared to the real world.
文献类型: Proceedings Paper
会议名称: 3rd International Conference on Mechanical and Electronics Engineering (ICMEE 2011)
会议日期: SEP 23-25, 2011
会议地点: Hefei, PEOPLES R CHINA
作者关键词: Bayer; Interpolation Algorithm; White Balance; CCD/CMOS image sensor
Web of Science 类别: Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
研究方向: Engineering; Materials Science; Mechanics
IDS 号: BBN40
ISSN: 1660-9336
ISBN: 978-3-03785-286-6
________________________________________
第 55 条,共 65 条
标题: Experimental Study on Vibration Absorption Characteristic of Non-Obstructive Particle Damping Beam
作者: Wang, W (Wang Wei); Li, YY (Li Yuyan)
编者: Tan HH
来源出版物: APPLIED MECHANICS AND MECHANICAL ENGINEERING II, PTS 1 AND 2  丛书: Applied Mechanics and Materials  卷: 138-139  页: 588-591  DOI: 10.4028/www.scientific.net/AMM.138-139.588  子辑: 1 + 2  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Non-obstructive particle damping(NOPD) is developing in combination with particle damping technique, impact damping technique and material science. NOPD technology has good damping characteristic and nicer effect on vibration absorption. In the paper experiments of vibration absorption characteristic for beam applying NOPD are done and some conclusions are obtained, which affords important reference for engineering application of NOPD technique.
文献类型: Proceedings Paper
会议名称: 2nd International Conference on Applied Mechanics and Mechanical Engineering (ICAMME 2011)
会议日期: OCT 08-09, 2011
会议地点: Sanya, PEOPLES R CHINA
作者关键词: Particle damping; Vibration absorption; Experimental study
Web of Science 类别: Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
研究方向: Engineering; Materials Science; Mechanics
IDS 号: BBK39
ISSN: 1660-9336
________________________________________
第 56 条,共 65 条
标题: Hard solder 20kW QCW Stack Array Diode Laser
作者: Li, XN (Li, Xiaoning); Kang, LJ (Kang, Lijun); Wang, JW (Wang, Jingwei); Zhang, P (Zhang, Pu); Xiong, LL (Xiong, Lingling); Liu, XS (Liu, Xingsheng)
编者: Zediker MS
来源出版物: HIGH-POWER DIODE LASER TECHNOLOGY AND APPLICATIONS X  丛书: Proceedings of SPIE  卷: 8241  文献号: 82410C  DOI: 10.1117/12.909772  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: With the increasing applications of high power semiconductor lasers in industry, advanced manufacturing, aerospace, medical systems, display, entertainment, etc., semiconductor lasers with high power and high performances are required. The performance of semiconductor lasers is greatly affected by packaging structure, packaging process and beam shaping. A novel macro channel cooler (MaCC) for stack array laser with good heat dissipation capacity and high reliability is presented in this work. Based on the MaCC package, a high power stack array diode laser is successfully fabricated. A series of techniques such as spectrum control and beam control are used to achieve narrow spectrum and high beam quality. The performances of the semiconductor laser stack array are characterized. A high power 20kW QCW hard solder packaged stack array laser is fabricated; a narrow spectrum of 3.94 nm and an excellent rectangular beam shape are obtained. The lifetime of the stack array laser is tested as well.
文献类型: Proceedings Paper
会议名称: Conference on High-Power Diode Laser Technology and Applications X
会议日期: JAN 22-24, 2012
会议地点: San Francisco, CA
作者关键词: stack array diode laser; macro channel cooler; hard solder packaging; reliability
Web of Science 类别: Engineering, Electrical & Electronic; Optics; Physics, Applied
研究方向: Engineering; Optics; Physics
IDS 号: BAS52
ISSN: 0277-786X
ISBN: 978-0-8194-8884-8
________________________________________
第 57 条,共 65 条
标题: 3000W CW diode laser cladding system
作者: Xiong, LL (Xiong, Lingling); Wang, M (Wang, Min); Wang, XBA (Wang, Xiaobiao); Zheng, YF (Zheng, Yanfang); Wu, D (Wu, Di); Zhang, P (Zhang, Pu); Li, XN (Li, Xiaoning); Wang, ZF (Wang, Zhenfu); Liu, XS (Liu, Xingsheng)
编者: Zediker MS
来源出版物: HIGH-POWER DIODE LASER TECHNOLOGY AND APPLICATIONS X  丛书: Proceedings of SPIE  卷: 8241  文献号: 824106  DOI: 10.1117/12.909599  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Laser cladding has become a useful tool in material processing for improving the surface properties of the substrate material, and has been widely used in industry in recent years. In this paper, we studied the 3000W CW laser cladding system based on the high power diode lasers. The beam control method was proposed to reduce the collimated beam pointing errors caused during the packaging of the laser stack. At an input current of 84A, the output power and the optical coupling efficiency of this laser cladding system were 3738W and 93.7%, respectively, and at work face the beam spot size was 2.5mm*7.9mm with symmetry intensity distribution. The laser cladding system was also used in cladding the nickel powder onto the iron substrate and the nickel powder can be clothed onto steel plate uniformly.
文献类型: Proceedings Paper
会议名称: Conference on High-Power Diode Laser Technology and Applications X
会议日期: JAN 22-24, 2012
会议地点: San Francisco, CA
作者关键词: High power; Semiconductor laser stacks; Laser cladding system; Collimated beam pointing error
KeyWords Plus: RESIDUAL-STRESSES; STEEL
Web of Science 类别: Engineering, Electrical & Electronic; Optics; Physics, Applied
研究方向: Engineering; Optics; Physics
IDS 号: BAS52
ISSN: 0277-786X
ISBN: 978-0-8194-8884-8
________________________________________
第 58 条,共 65 条
标题: Tracking of Moving Object Based on Optical Flow Detection
作者: Chen, ZW (Chen, Zhiwen); Cao, JZ (Cao, Jianzhong); Tang, Y (Tang, Yao); Tang, LN (Tang, Linao)
书籍团体作者: IEEE
来源出版物: 2011 INTERNATIONAL CONFERENCE ON COMPUTER SCIENCE AND NETWORK TECHNOLOGY (ICCSNT), VOLS 1-4  页: 1096-1099  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Object tracking is one of the most important fields in computer vision and image processing community. In this paper, a novel method for tracking of moving object is proposed. We analyze many methods which are used to segment the Video Object (VO). Then we propose a way, which is based on optical flow, to track object by using the object contour. This algorithm achieves the effective object tracking in spatial position. The experiment result shows that moving object tracking is accurate, rapid and stable by using this algorithm.
文献类型: Proceedings Paper
会议名称: International Conference on Computer Science and Network Technology (ICCSNT)
会议日期: DEC 24-26, 2011
会议地点: Harbin, PEOPLES R CHINA
会议主办方: Harbin Normal Univ
作者关键词: Object tracking; Moving object; Optical flow; Video Object
KeyWords Plus: VISUAL TRACKING
Web of Science 类别: Computer Science, Hardware & Architecture; Computer Science, Theory & Methods; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS 号: BAM59
ISBN: 978-1-4577-1584-6
________________________________________
第 59 条,共 65 条
标题: Analysis and study of static pressure distribution in an optical cable spool using distributed fiber Bragg gratings
作者: Ren, LY (Ren, Liyong); Ma, CJ (Ma, Chengju); Tang, F (Tang, Feng); Qu, ES (Qu, Enshi); Han, X (Han, Xu)
编者: Canning J; Peng GD
来源出版物: THIRD ASIA PACIFIC OPTICAL SENSORS CONFERENCE  丛书: Proceedings of SPIE  卷: 8351  文献号: 835119  DOI: 10.1117/12.913783  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: We present a theoretical model to study the static pressure distribution among the layers of an optical fiber cable spool based on the force analysis of the cable system. Using the distributed fiber Bragg grating (FBG) sensing technique, the static pressures within the fiber cable layers of the spool were measured according to the Bragg wavelength shifts of the FBGs embedded in the cable. The effects of the cable spool shrinkage owing to the pressure from outer fiber cable layers on the cable tension and the radial pressure were analyzed in detail. As a result, the relationship between the applied static pressure upon the fiber and the resulted Bragg wavelength shift of the FBG was deduced. The static pressure distribution of the fiber optical cable spool is obtained both in theory and experiment. Theoretical simulations coincide with experimental results. This technology provides us a real-time method to monitor the inner pressure among the fiber cable layers during the optical cable winding process.
文献类型: Proceedings Paper
会议名称: 3rd Asia Pacific Optical Sensors Conference (APOS)
会议日期: JAN 31-FEB 03, 2012
会议地点: Sydney, AUSTRALIA
作者关键词: optical fiber cable spool; fiber Bragg grating (FBG); axial direction strain; radial direction strain; pressure
KeyWords Plus: SENSOR; SENSITIVITY
Web of Science 类别: Engineering, Electrical & Electronic; Optics; Physics, Applied
研究方向: Engineering; Optics; Physics
IDS 号: BAJ49
ISSN: 0277-786X
ISBN: 978-0-8194-9027-8
________________________________________
第 60 条,共 65 条
标题: A Review of 3D Aircraft Image Recognition Methods
作者: Zhu, XF (Zhu, Xufeng); Ma, CW (Ma, Caiwen)
编者: Zhang CS
来源出版物: MATERIALS SCIENCE AND INFORMATION TECHNOLOGY, PTS 1-8  丛书: Advanced Materials Research  卷: 433-440  页: 2794-2801  DOI: 10.4028/www.scientific.net/AMR.433-440.2794  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: this paper provides a review of 3D aircraft object recognition methods based on 2D images. First, essentialities and advantages on 3D aircraft image recognition are analyzed. Second, in view of the aircraft image recognition system model, the traits of aircraft images are elaborated, then the methods of aircraft image recognition at every stage are discussed, especial the methods of feature extraction about aircraft image and the feasibilities, which some new methods about 3D object recognition are used to aircraft image recognition, are focused. At last, some issues about aircraft image recognition which should be further studied in the future are proposed.
文献类型: Proceedings Paper
会议名称: International Conference on Materials Science and Information Technology (MSIT 2011)
会议日期: SEP 16-18, 2011
会议地点: Singapore, SINGAPORE
作者关键词: 3D aircraft; image recognition; feature extraction; classification
KeyWords Plus: MOMENT INVARIANTS; FOURIER DESCRIPTORS; PATTERN-RECOGNITION; WAVELET; ALGORITHM; OBJECTS
Web of Science 类别: Computer Science, Interdisciplinary Applications; Engineering, Multidisciplinary; Materials Science, Multidisciplinary
研究方向: Computer Science; Engineering; Materials Science
IDS 号: BZN21
ISSN: 1022-6680
ISBN: 978-3-03785-319-1
________________________________________
第 61 条,共 65 条
标题: Automatic White Balance of Digital Camera Based on Global Probability Distribution
作者: Guo, HN (Guo Huinan); Cao, JZ (Cao Jianzhong)
编者: Zhang CS
来源出版物: MATERIALS SCIENCE AND INFORMATION TECHNOLOGY, PTS 1-8  丛书: Advanced Materials Research  卷: 433-440  页: 5443-5447  DOI: 10.4028/www.scientific.net/AMR.433-440.5443  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 1
被引频次合计: 1
摘要: The white balance is an important parameter of digital camera which makes a great impact on the application of digital cameras. However, due to the limitations of hardware of digital camera, the output image of digital camera cannot restore true colors of the objects under the different light sources conditions. And existing automatic white balance (AWB) algorithms have many application restrictions, particularly the single color image, the algorithms always failure to adjust. To solve this problem, this paper proposes an optimized algorithm based on the gray world assumption and HSI color model. According to the R, G and B color components probability distribution, the algorithm adjusts the image by using the difference value of color. Experimental results show that our algorithm can adjust images in complex situations; meanwhile these confirm that this method is not only effective, but also has the advantage of easy realization.
文献类型: Proceedings Paper
会议名称: International Conference on Materials Science and Information Technology (MSIT 2011)
会议日期: SEP 16-18, 2011
会议地点: Singapore, SINGAPORE
作者关键词: AWB; global probability distribution; color temperature; difference value
Web of Science 类别: Computer Science, Interdisciplinary Applications; Engineering, Multidisciplinary; Materials Science, Multidisciplinary
研究方向: Computer Science; Engineering; Materials Science
IDS 号: BZN21
ISSN: 1022-6680
ISBN: 978-3-03785-319-1
________________________________________
第 62 条,共 65 条
标题: Decoding algorithms for improving the imaging performance of Vernier anode readout
作者: Yan, QR (Yan, Qiurong); Zhao, BS (Zhao, Baosheng); Yang, H (Yang, Hao); Liu, YA (Liu, Yong'an); Sheng, LZ (Sheng, Lizhi); Wei, YL (Wei, Yonglin); Sai, XF (Sai, Xiaofeng)
编者: Galarneau P; Liu X; Li P
来源出版物: PHOTONICS AND OPTOELECTRONICS MEETINGS (POEM) 2011: OPTOELECTRONIC SENSING AND IMAGING  丛书: Proceedings of SPIE  卷: 8332  文献号: 83320K  DOI: 10.1117/12.917036  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: The Long Slit Spectrograph is one of instruments onboard The World Space Observatory-Ultraviolet. Both the FUV (102-1700nm) and NUV (160-320nm) channels of LSS choose micro-channel plates (MCP) detector with anode readout in the focal plane. The MCP detectors with anode readout are typically used to provide photon counting imaging. According to the desired performance of LSS, the Vernier anode may be the optimum readout scheme. The Vernier anode is famous for its high spatial resolution, however, the original decode algorithms of the Vernier anode is susceptible to wrongly decode, when the charge acquisition is not precise enough and the footprint size of charge cloud collected by Vernier anode is not small enough and eventually results in the deterioration of photon counting image. In this paper, the causes leading to image deterioration is analyzed. The least-squares method was used to calculate the phase value to correct imaging distortions caused by charge measurement accuracy. The area ratio of each electrode covered by charge cloud is accurately calculated to improving the imaging results. The corrected algorithms are verified by experimental results and the results show that the correction methods can obviously improve the quality of the original photon counting image.
文献类型: Proceedings Paper
会议名称: 4th International Photonics and Optoelectronics Meetings (POEM) - Optoelectronic Sensing and Imaging/10th International Conference on Photonics and Imaging in Biology and Medicine (PIBM)
会议日期: NOV 02-05, 2011
会议地点: Wuhan, PEOPLES R CHINA
作者关键词: Photon counting imaging; Vernier anode; micro-channel plates; WSO-UV
KeyWords Plus: STRIP ANODES; RESOLUTION; DETECTOR
Web of Science 类别: Engineering, Electrical & Electronic; Optics
研究方向: Engineering; Optics
IDS 号: BZR48
ISSN: 0277-786X
ISBN: 978-0-8194-8989-0
________________________________________
第 63 条,共 65 条
标题: Review on Quantum Clock Synchronization Schemes
作者: Yao, YP (Yao, Yin-Ping); Zhang, TY (Zhang, Tong-Yi); Wan, RG (Wan, Ren-Gang); Zhao, W (Zhao, Wei)
编者: Galarneau P; Liu X; Li P
来源出版物: PHOTONICS AND OPTOELECTRONICS MEETINGS (POEM) 2011: OPTOELECTRONIC SENSING AND IMAGING  丛书: Proceedings of SPIE  卷: 8332  文献号: 833202  DOI: 10.1117/12.918844  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Accurate remote clock synchronization is the backbone of applications such as high-accuracy satellite navigation, digital and/or cryptographic communication systems, space-based interferometric surveillance, coherent distributed-aperture sensing at high frequencies, and geolocation. During the last decade, several clock synchronization schemes have been proposed based on quantum mechanical concepts. Quantum clock synchronization promises more precision and better security. In this paper, the various proposed quantum clock synchronization schemes are reviewed. We compare and discuss several different quantum clock synchronization schemes. The advantages and disadvantages of these schemes are investigated with emphasis on the application in space-based satellite navigation systems.
文献类型: Proceedings Paper
会议名称: 4th International Photonics and Optoelectronics Meetings (POEM) - Optoelectronic Sensing and Imaging/10th International Conference on Photonics and Imaging in Biology and Medicine (PIBM)
会议日期: NOV 02-05, 2011
会议地点: Wuhan, PEOPLES R CHINA
作者关键词: quantum clock synchronization; quantum algorithm; quantum entanglement; quantum interference
KeyWords Plus: ENTANGLEMENT
Web of Science 类别: Engineering, Electrical & Electronic; Optics
研究方向: Engineering; Optics
IDS 号: BZR48
ISSN: 0277-786X
ISBN: 978-0-8194-8989-0
________________________________________
第 64 条,共 65 条
标题: Impact of phase noise on coherent BPSK homodyne systems in long-haul optical fiber communications
作者: Yu, G (Yu Gang); Xie, XP (Xie Xiaoping); Zhao, W (Zhao Wei); Wang, W (Wang Wei); Yan, SY (Yan Shuangyi)
编者: Zhao Z; Penty R; Shu C; Jiang T
来源出版物: PHOTONICS AND OPTOELECTRONICS MEETINGS (POEM) 2011: OPTICAL COMMUNICATION SYSTEMS AND NETWORKING  丛书: Proceedings of SPIE  卷: 8331  文献号: 83310R  DOI: 10.1117/12.915964  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: The impact of phase noise induced by amplified spontaneous emission and nonlinear Kerr effect is analyzed in investigating the performance of BPSK homodyne systems based OPLL in long-haul optical fiber communications. Under the Gaussian probability density function assumption the equivalent power spectral density of linear and nonlinear phase noise are determined, respectively. Using the power spectral density function the expressions of phase error variance taking into account linear phase noise, nonlinear phase noise and shot noise of corresponding photodiodes are determined. The impact of the number of amplifiers, bit rate and signal power on the phase error variance is analyzed. Using the minimum phase error variance and corresponding BER expression the receiver sensitivity and BER curves are given, respectively. Under the required BER, it is shown that there is a limitation on the maximum transmission distance of the BPSK homodyne system based OPLL. The theory expressions and numerical results obtained in this paper are helpful for designing OPLL and evaluating the impact of phase noise on the receivers based OPLL in long-haul optical fiber communications.
文献类型: Proceedings Paper
会议名称: 4th International Photonics and Optoelectronics Meetings (POEM) - Optical Communication Systems and Networking/10th International Conference on Photonics and Imaging in Biology and Medicine (PIBM)
会议日期: NOV 02-05, 2011
会议地点: Wuhan, PEOPLES R CHINA
作者关键词: ASE; phase noise; OPLL; BPSK homodyne receivers; long-haul optical fiber communications
KeyWords Plus: LASER LINEWIDTH REQUIREMENTS; PERFORMANCE ANALYSIS; PROPAGATION DELAY; LOCKED LOOPS; AMPLIFIERS; RECEIVERS
Web of Science 类别: Engineering, Electrical & Electronic; Optics; Telecommunications
研究方向: Engineering; Optics; Telecommunications
IDS 号: BZB25
ISSN: 0277-786X
ISBN: 978-0-81948-988-3
________________________________________
第 65 条,共 65 条
标题: Heat Conductivity of Particle Stacking Structured SiO2 Porous Film
作者: Xia, ZL (Xia, Zhilin); Wu, YT (Wu, Yuting)
编者: Shao J; Sugioka K; Stolz CJ
来源出版物: PACIFIC RIM LASER DAMAGE 2011: OPTICAL MATERIALS FOR HIGH POWER LASERS  丛书: Proceedings of SPIE  卷: 8206  文献号: 82060F  DOI: 10.1117/12.910379  出版年: 2012 
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
摘要: Particle stacking structured SiO2 porous films were prepared by sol-gel method. A model has been established to analyze the heat conductivity of these films. It is assumed that the heat energy mainly transfers through particles and their contact points. In particle stacking structured materials, a particle contacts with twelve contiguous particles, and forms twelve heat conduction branches. This model is suit to the conditions that: the size of particles in the porous material is uniform; heat conductivity of particle skeleton is much greater than particle clearance; and all contact area between particles approximately equal. The results show that: heat conductivity of particles stacking porous material is anisotropic, material heat conductivity depends on that of the particle skeleton and the ratio between radiuses of particle contact area and particle itself.
文献类型: Proceedings Paper
会议名称: 1st Pacific Rim Laser Damage Symposium on Optical Materials for High Power Lasers (PLD)
会议日期: NOV 06-09, 2011
会议地点: Shanghai, PEOPLES R CHINA
作者关键词: Porous material; Equivalent heat conductivity; Heat resistance; Particle close-stacked structure
KeyWords Plus: STAGNANT THERMAL-CONDUCTIVITY; MEDIA; MODELS
Web of Science 类别: Engineering, Electrical & Electronic; Optics; Physics, Applied
研究方向: Engineering; Optics; Physics
IDS 号: BYT70
ISSN: 0277-786X
ISBN: 978-0-81948-848-0

 

相关附件
相关文档

实时咨询

问图书馆员:

问学科馆员:

中国科学院西安光学精密机械研究所图书馆