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基于数字图像处理的路面裂缝自动分类算法

Keywords: 道路工程,路面裂缝,图像处理,分类算法,轮廓矢量化,块度

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Abstract:

?为了充分掌握路面裂缝信息,给路面养护管理、路面性能评价与预测、路面结构和材料设计提供参考,对路面裂缝图像自动分类与严重程度识别进行研究。首先,将裂缝轮廓进行矢量化处理,从而分离出单个裂缝区域进行特征计算与分析,提取倾角、块度、空洞等新的裂缝几何特征;然后,选择裂缝分类特征(裂缝空洞、长宽比和倾角明显程度),基于统计阈值区分线性裂缝和网状裂缝;最后,分别根据倾角和宽度对线性裂缝进行分类和严重程度识别,根据块度特征识别块状裂缝、龟裂及其严重程度。结果表明:裂缝分类和严重程度识别结果准确有效,可在无人为干预的情况下准确、自动、实时地提取路面裂缝种类和严重程度信息。

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