Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Opto-Electronic Engineering》 2006-05
Add to Favorite Get Latest Update

Performance of autofocus judgements in different quantity of information series images

YAO Song,CAO Dan-hua,WU Yu-bin ( Department of Optoelectronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China )  
This paper describes three different autofocus judgements based on wavelet transform, Laplacian operator and SPSMD.Then analyse the characteristic of these three judgements using the digital simulation technique. We used three group images which are changed from simple to complicated graphics, and compared the effection of these different autofocus judgements on the different group images . At last, the conclusion is given that the judgement based on wavelet transform has the best robust performance in different series images which contain different quantity of information.
【CateGory Index】: TN911.73
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 3 Hits
1 WANG Xin,LIU Chang(College of Computer Science and Technology,Changchun University of Technology,Changchun 130012,China);Algorithm of image definition evaluation based on lifting wavelet transform[J];Journal of Northeast Normal University(Natural Science Edition);2009-04
2 LIUQian, YUAN Daocheng (Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang 621900, CHN);Study on Illumination in Auto-focus Based on Image Processing[J];Manufacturing Technology & Machine Tool;2009-02
3 WU Xiao-Cui,GUO Si-Yu,YI Guo (College of Electrical and Information Engineering,Hunan University,Changsha 410082,China);Evaluation Function for Automatic Focusing Based on Boundary Gradients[J];Computer Systems & Applications;2010-03
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 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
2 XUE Chen-yang,KONG Fan-hua,ZHANG Wen-dong,XIONG Ji-jun,ZHANG Bin-zhen,ZHENG Li-na (National Key Laboratory For Electronic Measurement Technology, North University of China, Taiyuan 030051, China);Measuring MEMS Deep-Trench Structures with White Light Interference[J];Chinese Journal of Sensors and Actuators;2006-05
3 LU Ying-hua,CUI Jing-xia(College of Computer Science,Northeast Normal University,Changchun 130117,China);Research on expression-based fast wavelet transform-projection-BP neural network approaches[J];Journal of Northeast Normal University(Natural Science Edition);2009-02
4 Shi Jingzhuo Xu Dianguo Wang Zongpei(Harbin Institute of Technology 150001 China);Stepping Motor Position Servo System with Fuzzy Control[J];Transactions of China Electrotechnical Society;2001-03
5 Li Xu(Northwestern Polytechnical University,Xi'an 710072);Research on application of pipeline technology based on FPGA[J];Electronic Measurement Technology;2007-02
6 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
7 LIAO Qiang 1,ZHOU Yi 1, MI Lin 2, XU Zhong jun 1 (1.College of Mechanical Engineering ,Chongqing University ,Chongqing 400044, China; 2.State Key Lab. of Mechanical Transmission , Chongqing 400044, China);The Applications of Machine Vision to Precision Measurement[J];Journal of Chongqing University(Natural Science Edition);2002-06
8 FENG Hua jun,XU Zhi hai,LI Qi (State Key Laboratory of Modern Optical Instrument, Zhejiang University,Hangzhou 310027,China);An Infrared Active Position Sensitive Device Range Finding System[J];OPTO-ELECTRONIC ENGINEERING;1999-03
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 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
China Proceedings of conference Full-text Database 1 Hits
1 Li Jianbai Li Xiaoyun Guo Rong Luo Yanqiang Hou Jingfang Zhao Anqing (Jiangxi Academy of Sciences,Nanchang 330029 Tellhow Sci-Tech.CO.,Ltd.Nanchang 330096);Analysis on Resolution of Optoelectronic Microscope System[A];[C];2005
【Secondary References】
Chinese Journal Full-text Database 1 Hits
1 HAN Xiao1,JI Jin-chao2,ZUO Ping3,ZHANG Yu2 (1. College of Mathematics,Jilin University,Changchun 130012,China; 2. College of Computer Science and Technology,Jilin University,Changchun 130012,China; 3. Department of Foundation,Aviation University of Air Force,Changchun 130022,China);Recognition Algorithm of Dorsal Hand Vein[J];Journal of Jilin University(Science Edition);2010-02
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved