一种新的改进的 Hough 变换直线提取算法

摘要

Hough transform is a better line detection method ,which has good robustness .However ,the traditional Hough transform algorithm for straight line detection ,would detect false straight line and can not detect the shorter beeline , when the long and short beeline coexist .A new and improved Hough transform method for straight line detection is proposed to solve the above problem .After extracting a straight line in the transform space of the Hough transform ,the points in the transform space accumulator units are removed ,which are transformed form all the leeliners that pass various points on the extracted line ,so as to exclude the interference of the detected straight line on the other line detecting .Finally ,the improved Hough transform algorithm is compared with traditional Hough transform method .The experimental results showed that the improved Hough algorithm has a better line detection effect .%Hough 变换具有很好的鲁棒性，是一种较好的检测直线的方法。但是，目前的 Hough 变换在长短直线并存的情况下，会检测出虚假直线并漏检较短的直线。针对以上问题论文提出了一种新的改进的 Hough 变换直线检测方法。在Hough 变换的变换空间中提取出一条直线后，将过该直线上各点的所有直线在变换空间累加器单元中对应的映射点删除，从而排除该直线对其他直线检测的干扰。最后将改进的 Hough 变换算法与传统 Hough 变换方法进行比较，实验结果显示改进的 Hough 变换算法具有更好的直线检测效果。