Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Chinese Journal of Electron Devices》 2007-01
Add to Favorite Get Latest Update

Auto-Focusing System Based on DSP

CAI Chang-jin~ 1,2 ,ZHU Ming~1 1.Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China; 2.Graduate School of the Chinese Academy of Sciences, Beijing 100039,China  
Due to the development of digital image process theory, auto-focusing system is changed from optic to digital image process now. An auto-focusing system including the functions of image sampling, preprocessing and real-time control is introduced. This system bases on the core digital signal processor chipset TMS320C6416. The hardware, principles and algorithms of this real-time digital image processing system are presented. The result indicates that the system has good properties of real time, stability and auto-focusing fast and exactly.
【CateGory Index】: TP274.2
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
Chinese Journal Full-text Database 1 Hits
1 ZHAO Xiu-ying1,2,SHANG Yu-feng2,ZHAI Lin-pei1,FU De-you2,LIU Hong1,2 (1.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;2.Aviation University of Air Force,Changchun 130022,China);Balanced multiwavelet aviation image compression coding based on EBCOT[J];Optics and Precision Engineering;2007-11
Chinese Journal Full-text Database 4 Hits
1 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
2 ZHENG Yu-zhen1 , WU Yong2 , NI Xu-xiang2 (1. Zhejiang University of Science and Technology, Hangzhou 310012, China ; 2. Zhejiang University, Hangzhou 310027, China);Research on automatic focusing in real time[J];Opto-electronic Engineering;2004-04
3 WU Xiao Bo (Dept.of Automation of Logistical Engineering University,Chongqing 400041);Analyzing of the Characteristic of Image Edge[J];OPTICS AND PRECISION ENGINEERING;1999-01
4 Xu Dingjie,Wang Xiaoxi,Wang Wuyi and Yuan Zhejun Harbin University of Industry,Harbin 150001.;The Application of Digital Image Processing in the Measurement of Focal Distance[J];INSTRUMENT TECHNIQUE AND SENSOR;1998-07
Chinese Journal Full-text Database 10 Hits
1 ZHAO Li,xin,HU Song,WANG Zhao,zhi,LUO Zheng,quan,YAN Wei,HU Xiang,yu(Institute of Optic and Electronics,Chinese Academy of Sciences,Chengdu 610209,China);Auto,Focus of Laser Confocal Biochip Scanning[J];Micronanoelectronic Technology;2006-11
2 Tie Xiaoyun(College of Sciences,North China Univ.of Tech.,100144,Beijing,China);A Binary-conversion Method of Gray Images Based on Genetic Algorithm[J];Journal of North China University of Technology Beijing China;2008-01
3 ZHANG Hui1,Ni Li-na2,YU Ming-fei1,3,LUO Kuan1 (1.School of Optoelectronics Engineering,Changchun University of Science & Technology,Changchun 130022,China;2.Baishan Measurement Examining Institute,Quality & Technical Supervision Bureau of Biashan,Baishan 134300,China;3.No.93313 Unit of PLA,Changchun 130111,China);Measure System for Erose Object Projection Area[J];Ordnance Industry Automation;2007-06
4 YU Xin-le, YANG Zhan-xin$$$$(ECDAV, Communication University of China, Beijing 100024,PRC);Realization of Interpolation Filter Based on DSP and the Analysis of Finite Wordlength Effects[J];Journal of Beijing Broadcasting Institute;2005-02
5 SHUAI Qian-jun(Information Engineering Academy,Communication University of China,Beijing 100024,China);Research of the OFDM Modulation Technology using in FM IBOC DAB System[J];Journal of Communication University of China(Science and Technology);2007-03
6 Sun Minglei Zong Guanghua Yu Zhiwei Bi Shusheng Yu Jingjun (School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100083, China);Automatic focusing system of micro-vision based on image analysis[J];Journal of Beijing University of Aeronautics and Astronautics;2005-02
7 Dong Dai Liu Rong Sun Minglei Zong Guanghua(School of Mechanical Engineering and Automation,Beijing University of Aeronautics and Astronautics,Beijing 100083,China);Auto-focusing algorithm based on cross correlation[J];Journal of Beijing University of Aeronautics and Astronautics;2006-03
8 LI Gang, FAN Rui xia (Dept. of Automatic Control, Beijing Institute of Technology, Beijing100081, China);A New Median Filter Algorithm in Image Tracking Systems[J];Journal of Beijing Institute of Technology;2002-03
9 LI Ye-li,LU Li-Kun,LIN Zhi-ji (Beijing Institute of Graphic Communication, Beijing 102600,China);The Implementation of DSP-based Wavelet Transform Arithmetic[J];Journal of Beijing Institute of Graphic Communacation;2005-01
10 TAN Hui-sheng ~(1,2),GUI Wei-hua ~1,LIU Zhan-liang~ 2(1.Central South University,Changsha,410083,China;2. Zhuzhou Institute of Technology,Zhuzhou 412008,China);The Design of Image Edge Detection Co-processor Based on EDA[J];Packaging Engineering;2004-06
China Proceedings of conference Full-text Database 7 Hits
1 YAN Qiuzhen 1,ZHU Shihai 1,ZHANG Weicong 2 1.Department of Computer Science,Zhejiang Water Conservancy and Hydropower College,Hangzhou 310018,China;2.Intelligent Control Technology Institute,Zhejiang Wanli University,Ningbo 315101,China;Research of Auto Focus Technique for Mobile CMOS SoC Image Sensor[A];[C];2007
2 ZHOU Zhan-rong ZHANG Qing-hua WANG Lian-feng LI Ai-jun Department of Physics,Second Artillery Engineering College,Xian 710025,China;Improvement and comparison of algorithms for interference fringe edge detection[A];[C];2007
3 Zong Ya-ning~(1,2) Wang Shan-yuan~2 Wu Xiong-ying~2 1.Zhongyuan University of TechnoLogy,Zhengzhou 450007,China 2.Donghua University,Shanghai 200051,China;The measuring method of animal fibers diameter based on auto-focus technology[A];[C];2006
4 Huang Chang Yan Guoping Li Wen'en {Huazhong U. of Sci and Tech. , Wuhan 430074, China);The Test System of the Infrared Seeker[A];[C];2003
5 ZHANG Xi-Kun~1 LIU Rui-An~(1,2) HOU Jie~1 LI Wen-Qing~2 (1.Department of Physics and electronic information,Tianjin Normal University,Tianjin 300074,China; 2.University of Science CAUC,Tianjin 300300,China);Automatic Adjusting and Controlling of CCD objective in eye-gaze tracking system[A];[C];2007
6 JIANG Tiezhen YU Wen SUN Xiaowei (Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences,Shanghai 200050);Application of RAF-T1 microwave traffic detector in ITS[A];[C];2005
7 Li Yongtao~(1,2) Han Li~1 (1 Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100190 China; 2 Graduate School of Chinese Academy of Sciences Beijing 100039 China);SEM Autofocus Technology Based on Wavelet Transform[A];[C];2008
Chinese Journal Full-text Database 10 Hits
1 GUO Qiang-sheng, JIN Wei-guo, ZHOU Qing-ya The 45th Research Institute of CETC, Beijing East Yanjiao, 101601 China;Vision Inspection Technology of IC Die Bonder[J];Equipment For Electronic Products Manufacturing;2005-07
2 Ma Jiaguang Yin Yilin;The 778 Tracking Control System[J];;1986-01
3 TONG Kai1, REN Rui2, LI Zhi-quan1 (1. Yanshan University, Qinhuangdao 066004, China; 2. Department of Control Engineering, Armored Force Engineering College, Beijing 100072, China);Design of an automatic focusing system for 3-D topography measurement[J];Opto-electronic Engineering;2004-03
4 ZHANG Lei~1,YANG Run-kui~2,HUANG Lian-qing~1(1.Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences Changchun 130033, China; 2.Military Deputy Office of the Second Institute in Aerospace Industry,Beijing 100080, China);Computed X radiography image compression[J];Optics and Precision Engineering;2004-06
5 ZHANG Lei~1,HUANG Lian-qing~2,ZHAO Wei-jia~3(1.Department of Electron Engneering,Shenyang Institute of Aeronautical Engineering,Shenyang 110034,China;2.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;3.School of Photo-electronic Engineering,Changchun University of Science and Technology,Changchun 130022,China);A multi-layered decomposition of hyper-spectral image compression[J];Optics and Precision Engineering;2006-03
6 DENG Jia-xian(Information College of Hainan University,Haikou 570228,China);A remote-sensing image coding algorithm based on significant coefficients lifting[J];Optics and Precision Engineering;2006-05
7 TONG Wu-qin1,LING Yong-shun1,HUANG Chao-chao1,YANG Hua1,FAN Xiang2 (1.Key Laboratory of Infrared and Low Temperature Plasma of Anhui Province,PLA Electronic Engineering Institute,Hefei 230037,China;2.University of Science and Technology of China,Hefei 230031,China);Processing method of IR image based on mathematical morphology and wavelet transform[J];Optics and Precision Engineering;2007-01
8 Wu Xiaobo,An Wendou and Yang Gang (Dept.of Automation,Logistic Engineering Institute,Chongqing 630041);Error Analysing and Approaches of Improving Measureing Precision in Image Measuring System[J];OPTICS AND PRECISION ENGINEERING;1997-01
9 LI QingJun(Changchun Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Changchun 130022);Studying on a New Method of Video Focusing[J];OPTICS AND PRECISION ENGINEERING;1998-03
10 ZHAO Xiu-ying1,2,3,ZHAI Lin-pei1,WEI Jing-yuan4,LIU Hong1,2,3(1.Graduate School of the Chinese Academy of Science,Beijing 100039,china;2.Changchun Institute of Optical fine Mechanics and Physics,Jilin Changchun 130033,China;3.Aviation University of Air Force,Jilin Changchun 130022,China;4.Jilin University,Jilin Changchun 130022,China);Integer Biorthogonal Wavelet Transform on Image Compression[J];Infrared Technology;2005-06
【Secondary References】
Chinese Journal Full-text Database 3 Hits
1 LI Shi1,2,ZHANG Bao1,SUN Hui1(1.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);Optimized design of real-time encode for aerial-video image[J];Optics and Precision Engineering;2009-02
2 ZHAO Xiu-ying1,2,HU Yu-chen1,3,ZHAI Lin-pei1,GE Wen-qi1(1.Changchun Institute of Optical fine Mechanics and Physics,Chinese Academy of Science,Changchun 130033,China)(2.Aviation University of Air Force,Changchun 130022,China.);Super-resolution of the CCD image based on biorthogonal wavelet and interpolation[J];Optical Technique;2009-05
3 SUN Feng,WANG Zhong-ren,CHEN Zu-bin,FAN Dan-dan(College of Instrumentation & Electrical Engineering,Jilin University,Changchun 130062,China);Pseudorandom sweeping and system testing for seismic vibrator[J];Optics and Precision Engineering;2009-10
【Secondary Citations】
Chinese Journal Full-text Database 8 Hits
1 XU Sheng, LI Jian wei (Open Laboratory of Optoelectronic Technology & System,National Committee of Education, Chongqing University, Chongqing 400044,China);An Advanced Microscope System Based on the Intelligent Automatic Focusing[J];OPTO-ELECTRONIC ENGINEERING;2000-01
2 WANG Li-qiang, LIN Bin, XU Xiang-dong, LU Zu-kang (China National Optical Instrument Engineering Research Center, Zhejiang University, Hangzhou 310027, China);An Automatic Focusing System Based on USB Video Camera[J];Opto-electronic Engineering;2001-05
3 Wu Xiaobo; Zhong Xianxin; Liu Houquan and Pan Zhenxian (Dept.of Optoelectronic Instruments, Chongqing University, Chongqing 630044);High Accuracy Image Measurement System[J];OPTICS AND PRECISION ENGINEERING;1995-01
4 WU Xiao Bo (Dept.of Automation of Logistical Engineering University,Chongqing 400041);Analyzing of the Characteristic of Image Edge[J];OPTICS AND PRECISION ENGINEERING;1999-01
5 WANG Jian min 1, PU Zao bang 2, YIN Ji xue 3, YAN Lei 1 (1. Beijing University, Beijing 100871, China; 2. Harbin Institute of Technology, Harbin 150001, China) (3. Beijing Institute of Techndogy, Beijing 10081, China);Study on image autofocusing and aiming of microscopic system[J];OPTICAL TECHNOLOGY;2000-05
6 WU Zhenfeng ZUO Hongfu QIU Genliang (Department of Mechanical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016);Autofocus technique of optical microscope[J];OPTICAL INSTRUMENTS;2000-04
7 Huang Jianqi,Feng Huajun,Xu Zhihai,Dai Shunlin,L i Qi,Bian Meijuan State Key Laboratory of Modern Optical Instrumentation,Zhejiang University,H angzhou,3 1 0 0 2 7;THE APPLICATION OF EDGE-ENHANCE ALGORITHM AND WAVELET ANALYSISIN AUTO-FOCUS[J];ACTA PHOTONICA SINICA;2000-10
8 Xu Dingjie,Wang Xiaoxi,Wang Wuyi and Yuan Zhejun Harbin University of Industry,Harbin 150001.;The Application of Digital Image Processing in the Measurement of Focal Distance[J];INSTRUMENT TECHNIQUE AND SENSOR;1998-07
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved