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基于双目视觉的公路边坡表面位移识别方法

, PP. 27-34

Keywords: 道路工程,边坡位移,双目视觉,位移计算

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Abstract:

?针对目前公路边坡位移识别方法的不足,分析了基于双目视觉的公路边坡表面位移识别方法。在边坡表面设置一定数量的监测目标点,利用2台固定的摄像机采集边坡图像,采用亚像素搜索算法提取监测点的图像坐标,通过像平面坐标系、摄像机坐标系、测量坐标系之间的转换关系,计算监测点的三维坐标,识别边坡表面位移,并进行了可行性模拟验证。结果表明:监测点的计算位移值与实际值基本吻合,相对误差为2.02%,9组样本试验的标准差为0.832mm,测点误差值小于±1,±1.5,±2mm的比例分别为65%,89%,98%。

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