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《Semiconductor Optoelectronics》 2010-05
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Study on Beeline Edge Subpixel Localization for Mechanical Part

CUI Yanping1,2,GE Xingwei 1,ZHANG Hongliang1 (1.School of Mechanical and Electronic Engineering,Hebei University of Science and Technology,Shijiazhuang 050054,CHN;2.State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin 300072,CHN)  
Beeline is the important element in the computer vision measurement.Subpixel detection of beeline on image plane based on spatial moment and 3Dreconstruction of spatial beeline is researched.First the LOG operator was used to locate the edge at the level of pixel quickly,and then the spatial moment was used to detect subpixel location of the discrete points of edge.The least square fitting was adopted to fit the subpixel edge points which had been detected by Hough transform.The validity and precision of spatial moment subpixel edge detection and the extraction of beeline on image plane was studied.The experiments show that spatial moment subpixel edge detection and the extraction of beeline on image plane have acquired high precision.
【Fund】: 教育部博士点专项科研基金资助项目(20030056017);; 河北科技大学科学研究基金与大学生科技创新基金资助项目
【CateGory Index】: TP391.41
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【Citations】
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【Co-citations】
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