The Hough transformation of rectangle
Subotica(2008)
摘要
Hough transformation for finding straight line segments is well known in digital image processing. In this paper we have used Hough, houghline and houghpeaks functions for creating a new 4- dimensional parameter space named h_space for extracting rectangles in digital image. These parameters are coordinates of the center of a rectangle (intersection of diagonals), angle that the shorter edge makes with x-axis and length of the longer edge. In our opinion this result might be useful for the shape descriptors associated with rectangles because the parameters of h-space are suitable for calculating descriptors of a rectangle (like area and perimeter) and they give a good idea about the position of a rectangle.
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关键词
hough transforms,feature extraction,image processing,4d parameter space,hough line function,hough peaks function,hough transformation,digital image processing,h_space,rectangle extraction,shape descriptors,hough transform,4 dimensional,digital images,parameter space,image segmentation,digital image
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