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中国公路学报 2013

基于二维Rosin阈值方法的道路裂纹边缘检测

, PP. 70-76

刘悦,李一兵,谢红

Keywords: 道路工程,路面裂纹,Rosin阈值方法,边缘检测

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Abstract:

？为了在道路裂纹图像边缘检测时选择准确的区分噪声与边缘阈值,针对一维Rosin算法不能充分利用图像局部结构信息的缺陷,将传统Rosin方法推广至二维,联合Canny边缘检测算法和Rosin算法,利用像素点本身及其邻域的局部结构信息建立图像二维直方图;利用直方图的最高点和最低点构造全角旋转阈值选取平面,以搜索直方图与各阈值平面的空间距离最大值确定阈值点,获得一种自适应的Canny算法中的阈值选取方法。研究结果表明:该算法可对道路裂纹边缘进行有效检测,并扩展Canny算法的应用范围。

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