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远距离混凝土桥梁结构表面裂缝精确提取算法

, PP. 102-108

Keywords: 桥梁工程,桥梁检测,Snake模型,裂缝提取,图像处理,图像分割

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Abstract:

?在分析桥梁结构表面裂缝图像特征基础上,结合改进Snake主动轮廓模型图像分割算法,融合距离传感器信息,提出一种综合高分辨率图像采集、裂缝敏感区域截取、孤立噪声去除、裂缝旋转和标记的裂缝提取算法,实现了交互式远距离混凝土桥梁结构表面裂缝的精确提取。分析结果表明:改进Snake主动轮廓模型图像分割算法误分率为3.89%,运算时间为153ms,试验对比裂缝宽度显微镜观测值,裂缝提取绝对误差小于0.05mm,该算法可满足工程检测需求。

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