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基于聚焦深度的沥青路面微观纹理三维图像重构方法研究

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Keywords: 道路工程,沥青路面,三维重构,聚焦深度,微观纹理,机器视觉

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Abstract:

沥青路面微观纹理三维图像重构是研究其微观性能的基本方法之一,针对国内外沥青路面微观纹理三维图像重构方法的不足,运用聚焦深度法,通过单目体视显微镜沿垂直沥青试块表面方向拍摄序列图像,采用改进的Laplacian聚焦算子进行序列图像融合并确定融合图像中每点所属的高度层次,用高斯插值算法得到每点准确的高度值,进而实现沥青路面微观纹理三维重构。与激光轮廓仪测量的断面轮廓线进行对比分析,验证了其精度和可行性。试验结果表明该方法可以高精度重构沥青路面三维微观纹理。

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