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基于分辨力空间变化的自动聚焦方法
引用本文:黄剑琪,徐之海,冯华君,戴顺林,李奇,边美娟.基于分辨力空间变化的自动聚焦方法[J].光电工程,2001,28(1):22-26.
作者姓名:黄剑琪  徐之海  冯华君  戴顺林  李奇  边美娟
作者单位:浙江大学现代光学仪器国家重点实验室,浙江杭州 310027
基金项目:国家教委高等学校骨干教师资助计划资助项目
摘    要:在获取数字化图象的过程中,快速、有效地实现自动聚焦十分重要。提出一种加快对焦判断的方法,模仿人眼视觉系统中视网膜的空间变化分辨力,建立了模拟模型并进行了数据分析。实验表明,利用所提出的模型,在保持高分辨力的同时又有一个大视场和较少的数据处理量,在保证了为精度的同时又提出了原有的处理速度,在对焦策略上有一定的先进性,在机器人视觉系统和数字成象系统中具有很好的应用前景。

关 键 词:自动聚焦  视觉系统  空间变化分辨力  机器人
文章编号:1003-501X(2001)01-0022-05
修稿时间:2000年7月5日

The Application of Space VariableResolution to Automatic Focusing
HUANG Jian qi,XU Zhi hai,FENG Hua jun DAI Shun lin,LI Qi,BIAN Mei juan.The Application of Space VariableResolution to Automatic Focusing[J].Opto-Electronic Engineering,2001,28(1):22-26.
Authors:HUANG Jian qi  XU Zhi hai  FENG Hua jun DAI Shun lin  LI Qi  BIAN Mei juan
Abstract:It is very important to realize automatic focusing quickly and effectively in the course of capturing digital images. A method for judgement of focusing is put forward in the paper. A simulation model is established by simulating the space variation of resolution in retina of human vision system and the data analysis is carried out. The experiment shows that a large field of view and less data processing can be maintained when the high resolution is kept by using of the proposed model. The original processing speed is improved on the basis of keeping the focusing accuracy. The model has certain advantage in focusing method. It has a good application prospect in robot vision system and digital imaging system.
Keywords:Auto  focusing  Vision systems  Space variant resolution
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