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《Journal of Baotou University of Iron and Steel Technology》 2002-02
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Sub-pixel edge detect technique based on LOG operator

L Xiao qi 1,2 ,WANG Hong ren 1,LIU Jian xun 1 (1.Information Engineering School,UIST Baotou,Baotou 014010,China;2.Information Engineering School,UST Beijing,Beijing 100083,China)  
First,detect the zero crossing point by the convolution between original image and LOG operator.Then obtain the pixel edge with planar model.Finally,calculate the zero crossing point again after polynomial interpolation and get the edge image with sub pixel precision.
【Fund】: 内蒙古高等学校科学研究基金资助项目 (ZD0 10 0 5 )
【CateGory Index】: TP391.4
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