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《Computer Development & Applications》 2009-04
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A Design of High Resolution Camera for Video Presenter

Zhang Qigui et al  
A scheme of "DSP+FPGA+MCU" is adopted to design a new high resolution camera based on 800K pixels color CCD chipset.Image signal collected by CCD is converted through A/D,and then is sent to DSP and FPGA for processing.After accomplishing video format conversion and frame rate up-conversion,FPGA outputs image of XGA resolution and realizes an auto-focusing algorithm.According to focus information of FPGA and iris information of DSP,and combining determinate control method to control stepping motor of optical lens,MCU realizes auto focusing and auto iris.The camera is characteristic of high output resolution,high picture quality,easy for function extension and so on,and it is widely used in video presenter of education and commerce.
【Fund】: 太原理工大学技术开发项目(编号:203-24041221)
【CateGory Index】: TN948.41
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Chinese Journal Full-text Database 2 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 ;A Color Space Shift from RGB to YCbCr through FPGA[J];Journal of Nanchang College;2007-06
Chinese Journal Full-text Database 10 Hits
1 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
2 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
3 NONG Tianshi,WU Jian,YE Datian Research Center of Biomedical Engineering,Graduate School Tsinghua University at Shenzhen Campus,Shenzhen,Guangdong Province 518055;Development of a portably embedded pulse signal acquisition circuit[J];Beijing Biomedical Engineering;2008-02
4 LIU Huan-yu1,2,XIONG Wen-zhuo1,WAN Qiu-hua1,ZHAO Chang-hai1,2,MU Zhi-guo1,2 (1.Changchun Institute of Optics,Fine Mechanics and Physics,the Chinese Academy of Sciences,Changchun 130033,China;2.Graduate School of the Chinese Academy of Sciences,Beijing 100039,China);Development of Automatic Focusing System Based on Image Processing Method[J];Journal of Test and Measurement Technology;2007-01
5 HE Qiaojun, CHEN An, HU Yueming (Engineering Research Center for Precision Electronic Manufacturing Equipments of Ministry of Education, College of Automation Science and Engineering, South China University of Technology, Guangzhou 510640,China);Generic Production Equipment Control Platform Based on ARM+uC/OS[J];Equipment for Electronic Products Manufacturing;2009-02
6 FU Maoyong,L Yuxiang,LU Bin,YU Rongrong(Department of Physical Electron,Taiyuan University of Technology,Taiyuan 030024,China);Visual remote monitoring system and image optimization arithmetic based on LPC2378[J];Electric Power Automation Equipment;2009-05
7 YANG Ming-ji, LIANG Jing(School of Measurement-Control Tech.& Communications Engineering, Harbin University of Science and Technology, Harbin 150080, China);Hardware Design of Bluetooth Hands-free Car Kit With Speech Synthesis Function[J];Audio Engineering;2009-01
8 CHENG Yong Qiang,HUANG Ying Nan,XIE Ke Ming (College of Information Engineering, Taiyuan University of Technology, Taiyuan 030024 ,China);A method and hardware implementation of auto-focusing system for the camera[J];Application of Electronic Technique;2009-01
9 TONG Qing-hua, YING Gen-yu, WANG Jian-ru (dept. of Electronics, Tsinghua University, Beijing 1000084, China);Development of Intelligent Measuring System for C PT Purity[J];Journal of Electron Devices;2005-01
10 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;Auto-Focusing System Based on DSP[J];Chinese Journal of Electron Devices;2007-01
China Proceedings of conference Full-text Database 5 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 XIE Tie-cheng,DA Xin-yu,CHEN Shu-xin,GUO Wei-wu (The Telecommunication Engineering Institute,Air Force Engineering University,Xi'an 710077,China);Realization of Transceiver Training Simulator Data Storage Base on ARM[A];[C];2009
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 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
5 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
【Secondary Citations】
Chinese Journal Full-text Database 6 Hits
1 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
2 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
3 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
4 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
5 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
6 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
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