Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Optics and Precision Engineering》 2008-08
Add to Favorite Get Latest Update

Automatic focusing technique based on illumination optimum

SUN Ming-lei,ZONG Guang-hua,BI Shu-sheng(School of Mechanical Engineering and Automation,Beihang University,Beijing 100083,China)  
The effect of illumination intensity on automatic focusing in the microscopic vision research field is discussed.An automatic illumination control system is developed to provide experimental conditions for illumination research on microscopic vision.The fast Fourier transform(FFT) is used to analyze spectra of image sequences at defocus and image sequences under different illumination intensities,which proves that illumination intensity conditions impact significantly on the high-frequency energy of images.A evaluating function for the high-frequency energy of images is proposed.The experimental results show that illumination intensity has a great impact on focusing curves,and higher accuracy of 0.857 μm can be achieved after illumination optimization,which shows that illumination opitimization can improve automatic focusing accuracy.
【Fund】: 国家863高技术研究发展计划资助项目(No.2004AA404260);; 中国博士后科学基金(No.20070420287)
【CateGory Index】: TP391.41
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【References】
Chinese Journal Full-text Database 6 Hits
1 ZHANG Xi-wen1,WANG Xiao-dong1,LUO Yi1,TENG Lin2,CHEN Liang2(1.School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,Liaoning Province,China;2.Flight Automatic Control Research Institute,Aviation industry corporation of China,Xi'an 710065,China);Automatic Illumination of Microscopic Machine Vision Optimization for Precision Miniature Parts Automatic Assembly System[J];Opto-Electronic Engineering;2012-04
2 ZHAO Hui-fu1,2,LIU Hua1,SUN Qiang1,WANG He1,XU Jia-lin1,JING Lei1,2,LIU Ying1,LI Ye-fan1,NI Ping-tao3(1.Opto-electronic Technology Research Center,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China;3.Aviation University of Air Force,Changchun 130022,China);Design of RIXR LED collimatine system[J];Optics and Precision Engineering;2011-07
3 LUO Jun,SUN Li,MIN Zhi-sheng(Key Laboratory of Optoelectronic Technology and System, Ministry of Education,Chongqing University,Chongqing 400030,China);Application of zoom tracking curves in focusing[J];Optics and Precision Engineering;2011-10
4 ZHOU Li-ping*,SUN Zhi-jun,Zhang Quan(State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China);Auto-focusing and control of micro-vision system[J];Optics and Precision Engineering;2013-03
5 Yu Guiying Jiang Xianman Fan Weijun Sang Ru(College of Metrology and Measurement Engineering,China Jiliang University,Hangzhou,Zhejiang 310018,China);Portable Larvae Image Analyzer for Plant Quarantine[J];Laser & Optoelectronics Progress;2010-12
6 Wang Junwei;Ge Aiming;Cai Jinlin;Chen Jingyu;Zhu Ling;Institute for Electric Light Sources, Department of Light Sources and Illuminating Engineering, School of Information Science and Engineering, Fudan University;;Design of single module LED-based integrated headlamp system[J];Infrared and Laser Engineering;2015-09
【Citations】
Chinese Journal Full-text Database 3 Hits
1 ZHANG Lin, CHEN Tao, LIU Shi-bing, ZUO Tie-chuan (Beijing University of Technology, Beijing 100022, China);Observation and measurement system for microstructure based on three-direction fiber illumination[J];Optics and Precision Engineering;2004-03
2 ZHU Zheng-tao~(1,2),LI Shao-fa~1,CHEN Hua-ping~2 (1.College of Computer Science and Engineering, South China Univ. of Tech., Guangzhou 510640,China;2.College of Information Engineering, Guangdong Univ. of Tech., Guangzhou 510640,China);Research on auto-focused function based on the image entropy[J];Optics and Precision Engineering;2004-05
3 CAO Wan-peng,CHEN Gang,CHE Ren-sheng,YE Dong(Department of Automatic Measurement and Control,Harbin Institute of Technology,Harbin 150001,China);An illumination-independent edge detection and fuzzy enhancement algorithm based on wavelet transform[J];Optics and Precision Engineering;2007-07
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 ZHU Kong-feng(School of Electronic Science and Technology,Anhui University,Hefei 230039,China);An algorithm of focusing region selection for auto-focusing[J];Journal of Anhui University(Natural Sciences);2009-02
2 LIN Zhaohua1,2,LIU Xin1,WANG Lan1,ZHANG Shumei1(1.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Science,Changchun 130033,China; 2.Graduate School,Chinese Academy of Sciences,Beijing 100039,China);Application of MSP430 in Autofocus System of Theodolite[J];Electronics Optics & Control;2011-01
3 YANG Yun,ZHOU Jin(Institute of Optics and Electronics,CAS,Chengdu 100044,China);An edge detection method insensitive to light variance in image[J];Electronic Instrumentation Customer;2009-03
4 SHENG Lei, LIU Zhi-chun, YU Xiao-bo (Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China);Research on Multi-scale Video Tracking based on Mean-Shift Algorithm[J];OME Information;2010-12
5 LIU Rui-an1,2,JIN Shi-jiu1,WU Xiao-rong2,ZHANG Xi-kun2 (1.State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin 300072,China;2.College of Physics and Electronic Information Science,Tianjin Normal University,Tianjin 300074,China);Adaptive regulation of CCD camera in eye gaze tracking system[J];Optics and Precision Engineering;2007-06
6 WANG Qian,SONG En-min,XU Xiang-yang,LIU Hong(School of Computer Science and Technology,Huazhong University of Science and Technology,Wuhan 430074,China);Auto-focusing function for microscope image based on weighted neighborhood correlation[J];Optics and Precision Engineering;2008-01
7 YU Xiao-bo,SHENG Lei(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China);Image stitching of multi-lens with large visual field in range instrumentation[J];Optics and Precision Engineering;2008-11
8 ZHAO Quan-you1,2,PAN Bao-chang2,ZHENG Sheng-lin2(1.Department of Computer and Information Science,Hunan University of Science and Engineering,Yongzhou 425006,China;2.Institute of Digital Image Technology,Faculty of Information Engineering,Guangdong University of Technology,Guangzhou 510006,China);Color constancy enhancement in two steps under variable illumination[J];Optics and Precision Engineering;2009-04
9 LU Gang1,YAN Jing-wen2,KOU Ye-quan1,ZHANG Jian-zhong1(1.Department of Communication Engineering,Xiamen University,Xiamen 361005,China;2.Department of Electronic Engineering,Shantou University,Shantou 515063,China);Dual-tree complex wavelet image denoising based on parental and neighboring coefficients[J];Optics and Precision Engineering;2009-04
10 CUI Chang-cai,ZHANG Geng-pei,ZHANG Bin,ZHANG Qian(College of Mechanical Engineering and Automation,Huaqiao University,Quanzhou 362021,China);Application of wavelet filtering and singularity analysis to evaluation of surface roughness[J];Optics and Precision Engineering;2009-09
China Proceedings of conference Full-text Database 1 Hits
1 Liang Min hua Cheng Tao (1 Changchun Institute of Optics,Fine Mechanics and Physics Changchun 130022 China; 2 Graduate School of the Chinese Academy of Sciences Beijing 100039 China);Research on Substitution of CMOS Camera for Cinematograph[A];[C];2008
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 ZHU Kong-feng(School of Electronic Science and Technology,Anhui University,Hefei 230039,China);An algorithm of focusing region selection for auto-focusing[J];Journal of Anhui University(Natural Sciences);2009-02
2 HU Tao,CHEN Shi-zhe,LIU Guo-dong,PU Zhao-bang(Department of Automatic Measurement and Control,Harbin Institute of Technology,Harbin 150001,CHN);Selection of Auto-focus Function in Micro Visual System[J];Semiconductor Optoelectronics;2006-02
3 LIU Li-shuang1,SUN Shuang-hua2,Lü Nai-guang1(1.School of Photoelectric Information and Telecommunication Engineering,Beijing Information Science and Technology University,Beijing 100192,China;2.Division of Metrology in Length and Precision Engineering,National Institute of Metrology,Beijing 100013,China);Study on the selection method of focusing function in vision system[J];Journal of Beijing Institute of Machinery;2008-01
4 Zhu Shiping Fang Jiancheng Zhou Rui (Beijing University of Aeronautics and Astronautics,School of Astronautics);New Kind of Energy Spectrum Entropy Image Focusing Evaluation Function[J];JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS;1999-06
5 FENG Hui-zong1,CHEN Ye1,XU Yang2 (1.Automotive Electronics and Embedded Research Center,Chongqing University of Posts and Telecommunications,Chongqing 400065; 2.College of Optoelectronic Engineering,Chongqing University,Chongqing 400044);Real-time image acquisition and Sobel edge detection based on FPGA[J];Transducer and Microsystem Technologies;2011-06
6 Sun Guoqiang,Bai Shengwu(School of Technical Physics,Xidian University,Xi'an 710071,China);Study of the Image Auto-Focusing System Based on FPGA[J];Electronic Science and Technology;2010-07
7 KANG Zong-ming,ZHANG Li,XIE Pan(Department of Electronic Engineering,Tsinghua University,Beijing 100084,China);Implementation of an Automatic Focusing Algorithm Based on Spatial High Frequency Energy and Entropy[J];Acta Electronica Sinica;2003-04
8 ZHANG Jian-en,CAO Chang-xiu,JIN Qiong(College of Automation,Chongqing University,Chongqing 400030,China);Algorithm of Circle Analyse in Image Processing[J];Journal of Chongqing University(Natural Science Edition);2005-11
9 WANG Ren hua, SHEN Mang zuo (Institute of Optics & Electronics, Chinese Academy of Sciences,Chengdu 610209,China);An Algorithm Study for Automatic Focusing[J];Opto-electronic Engineering;2000-04
10 REN Si-gang, LI Jian-wei, XIE Li-li (Institute of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China);Automatic focusing technique based on gray scale difference method[J];Opto-electronic Engineering;2003-02
【Secondary References】
Chinese Journal Full-text Database 10 Hits
1 WANG Jun-bo,XIE Xiu-xiu,CAO Ling-ling,SHENG Ming,FENG Min(College of Electronics and Information Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China);Fractionally spaced equalizer for indoor visible light communication system[J];Optics and Precision Engineering;2012-01
2 WANG Da-hui,ZHAO Xue-qing,ZHANG Yong-sheng,SUN Yu-wei,ZHAO Jun(State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology,Xi'an 710024,China);Automatic alignment of double paths in electron pumped excimer laser amplifier[J];Optics and Precision Engineering;2012-07
3 Zhang Hang Liang Xue Yan Jinhua Xu Zhousu Xu Jun Chen Gang(Department of Applied Physics,Zhejiang University of Technology,Hangzhou,Zhejiang 310023,China);Compound Parabolic Concentrator-Simultaneors Multiple Surfaces Design Methods for LED Collimators[J];Acta Optica Sinica;2012-09
4 Wang Ziyi 1 Zhang Rongjun1 Xu Wei 2 Xu Zijie1 Zhang Fan1 Yu Xiang1 Wang Songyou1 Zheng Yuxiang1 Chen Liangyao1 1 Shanghai Ultra-Precision Optical Manufacturing Engineering Center,School of Information Science and Engineering,Fudan University,Shanghai 200433,China 2 Engineering Research Center of Advanced Lighting Technology,Ministry of Education,School of Information Science and Engineering,Fudan University,Shanghai 200433,China;A Light Emitting Diode-Lighting Fiber Coupler Based on Total Reflection[J];Acta Optica Sinica;2012-09
5 MA Jian-she,LI He-yin,CHENG Xue-min,LIN Jia-yong,ZHANG Zhi-qing(Shenzhen Branch Center,Optical Memory National Engineering Research Center, Graduate School at Shenzhen,Tsinghua University,Shenzhen 518055,China);Control system for embedded auto-focusing camera module[J];Optics and Precision Engineering;2012-10
6 ZHANG Yan-chao1,2,SUN Qiang1,ZHAO Jian1*(1.Changchun Institute of Optics,Fine Mechanics and Physics, Chinese Academy of Sciences,Changchun 130033,China; 2.University of Chinese Academy of Sciences,Beijing 100039,China);Application of depth from defocusing based on logarithmic power spectrum to multi-spectral imager[J];Optics and Precision Engineering;2013-03
7 Tu Shuai (Changzhou Automation Research Institute of CCTEG,Chang zhou Jiangsu);Detection System of Steel wire of Monkey Car in Mine based on Machine Vision[J];Electronics World;2013-07
8 Xie Yu Ye Yutang Zhang Jing Liu Lin(School of Optoelectronic Information,University of Electronic Science and Technology of China, Chengdu,Sichuan 610054,China);Illumination Assessment Method Based on Three-Dimensional Color Space for Automatic Visual Inspection[J];Acta Optica Sinica;2013-05
9 ZHANG Yan-chao;SUN Qiang;ZHAO Jian;LI Ye-fan;HAN Xi-zhen;BAI Jing;Changchun Institute of Optics,Fine Mechanics and Physics, Chinese Academy of Sciences;University of Chinese Academy of Sciences;;Auto-focusing adjustment of multi-spectral imager by differential projection method[J];Optics and Precision Engineering;2013-08
10 WANG Wei;LI Dong-jian;LI Hong-guang;WANG Zheng-zhou;CAO Shi-kang;Xi′an Institute of Optics and Precision Mechanics Chinese Academy of Sciences;;Irregular image adaptive focusing system for diffraction grating[J];Optics and Precision Engineering;2014-04
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 Guo Jun Zeng Wenhan Xie Tiebang (School of Mechanical Science & Engineering, Huazhong University of Science & Technology, Wuhan, 430074);A BULLET MARK COMPUTER IMAGE COMPARISON SYSTEM[J];Acta Armamentarii;2003-04
2 KANG Zong-ming,ZHANG Li,XIE Pan(Department of Electronic Engineering,Tsinghua University,Beijing 100084,China);Implementation of an Automatic Focusing Algorithm Based on Spatial High Frequency Energy and Entropy[J];Acta Electronica Sinica;2003-04
3 WANG Ren hua, SHEN Mang zuo (Institute of Optics & Electronics, Chinese Academy of Sciences,Chengdu 610209,China);An Algorithm Study for Automatic Focusing[J];Opto-electronic Engineering;2000-04
4 WANG Xiang jun,WANG Feng (College of Precision Instrument and Opto-electronic Engineering, Tianjin University, The Metrology Technology and Instrumentation National Laboratory Qilitai,Nankai District, Tianjin 300072, China);Study of Micro Mechanical Size Inspection Technology by Microscope Precision Digital Image[J];Optics and Precision Engineering;2001-06
5 XU Jie 1, ZHANG Zhi jiang 2, LU Lin hai 1 (1.Electromechanical Engineering and Automatization Academy of Shanghai University, Shanghai 200072, China; 2.Communication Engineering Department of Shanghai University, Shanghai 200072, China);Image Processing for the Automatic Positioning System of Pellet Target[J];Optics and Precision Engineering;2001-06
6 LI Zhi, WANG Xiang-jun (National Laboratory of Precision Measurement Technology and Instruments,College of Precision Instrument and Opto-electronic Engineering, Tianjin University, Tianjin 300072, China);MEMS measurement technologies and methods[J];Optics and Precision Engineering;2003-01
7 ZHAO Chun jiang, SHI Wen kang, DENG Yong(School of Electronics & Information Technology, Shanghai JiaoTong University, Shanghai 200030, China);Edge detection based on fuzzy inference[J];Optics and Precision Engineering;2003-03
8 LI Fen-lan,XU Ke-xin(State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin 300072,China);An algorithm applied in frontal-view face images for automatically localizing eyes[J];Optics and Precision Engineering;2006-02
9 LIN Yu-chi~1,CUI Yan-ping~(1,2),HUANG Yin-guo~1(1.State Key Laboratory of Precision Measuring Technology and Instrument,Tianjin University,Tianjin 300072,China;2.School of Mechanical and Electronic Engineering,Hebei University of Science and Technology,Shijiazhuang 050054,China);Study on edge detection and target recognition in complex background[J];Optics and Precision Engineering;2006-03
10 WU Yi Hui,JIA Hong Guang,WANG Li Ding (Changchun Institute of Optics and Fine Mechanics, Chinese Academy of Sciences,Changchun 130022);Micro Measurement: Development and Application[J];OPTICS AND PRECISION ENGINEERING;1998-02
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved