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文件名称：An algorithm of subpixel edge detection based on ZOM and application in calibration for robot vision.pdf
文件大小：497KB
文件格式：PDF
更新时间：2014-04-01 13:24:38
zernike
Abstract ： An algorithm of subpixel edge detection based on.ZOM is presented in this paper. ZOM not only
may detect the line edge hut also may detect the curve edge. In the paper the properties of ZOM is analyzed and
a gray step model of image is established with taking line edge as example. The computing formulas for
subpixel edge are gained after analyzing principle of subpixel edge detection. Three orthogonal moments is only
required for subpixel edge detection. After computing the amplitude and vettical direclion of edge, maximum of
amplitude is searched along vertical direction in order to locate subpixel dge. The detailed algorithm is
provided. Experimental results show that subpixel edge deteetion on ZOM has high locating precision and
strong robustness to noise.