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路面裂缝图像处理算法研究

, PP. 64-68

Keywords: 道路工程,裂缝识别,图像处理,路面裂缝,阈值分割

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Abstract:

为了避免传统人工视觉裂缝检测方法的耗力、耗时、不精确、影响交通、危险、花费高等缺点,提出了一种新的基于图像处理技术的路面裂缝类病害自动识别算法。识别分为两个步骤首先以一个5×5的窗口为基准,在这个窗口中确定9种不同的掩膜模板,对有噪音的路面图像进行平滑和增强;然后基于阈值分割理论,采用最大类间、类内距离准则对图像进行阈值分割,提取图像上的裂缝特征。最后对采集的200幅路面裂缝图像进行了平滑和分割试验研究,和Robison等常用的平滑模板相比,对图像进行增强的同时较好地保护了裂缝边缘。在对平滑后的图像进行分割当中,和Hough变换、数学形态学等分割算法进行了对比研究,结果表明了该算法在精度、速度和可靠性方面具有一定的优势。

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