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New Autofocus Algorithm of Microscope

Wu Zhenfeng Zuo Hongfu Qiu Genliang Liu Hongxing Department of Mechanical Engineering,Nanjing Univ ersity of Aeronautics & Astronautics Nanjing,210016  
When beginning to develop the autofocus system of a mic roscope, this paper adopts two common focus algorithms: the gray scale entropy and the gra y scale variance of image,but the autofocus system using these two common algor ithms is not very credible. After careful experiments,we find that they have so me deficiencies,so we bring forward a new one,which is the sum of the absolute value of gray difference. The contrastive experiments of autofocus show that th e new algorithm has advantages over the old one.
【CateGory Index】: TP391.4
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