【摘要】 图像边缘的检测可以得到图像中处于边缘上的像素点,由于受到噪声等干扰,一组边缘像素很少能完整地描绘一条边缘。利用哈夫(Hough)变换可以将边缘像素连接成有意义的边缘。现有文献对哈夫变换在极坐标中的应用,存在不同的形式和论述,容易造成概念混淆。详细叙述哈夫变换的基本原理,及在直线检测中的应用。尤其是对极坐标下直线的标准方程,进行详细地推导和论述,从而对哈夫变换的应用进行有益的补充。更多还原

【Abstract】 The image edge detection should yield pixels lying only on edges.In practice,the resulting pixels seldom characterize an edge completely because of noise and other effects that introduce spurious intensity discontinuities.Using Hough transform can assemble edge pixels into meaningful edges.This paper discusses the principle of Hough transform,and application in line detection in a detail.Especially,the paper introduces line standard form in polar coordinates.更多还原