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基于1mm精度路面三维图像的裂缝种子自动识别算法

, PP. 23-32

Keywords: 道路工程,路面裂缝,识别算法,图像处理,对称性检测,裂缝种子

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Abstract:

?为了准确地检测路面裂缝,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,基于1mm·像素-1的路面三维图像对裂缝自动识别进行研究。首先,将源图像划分为8像素×8像素的子块以降低图像维度;其次,根据深度验证和对称性检测将8像素×8像素的图像子块识别为裂缝子块(即裂缝种子)或非裂缝子块;然后,根据深度和方向相似性连接裂缝片段;最后,设计去噪算法消除孤立噪声,获得裂缝图像。结果表明:所提出的算法具有较高的准确率(均值92.75%)、召回率(均值58.93%)和运行速度(平均2~3s·张-1),以71.15%的F值优于Otsu分割,Canny边缘检测和另一种子识别算法。

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