一种基于平面标靶的线结构光视觉传感器标定方法

来源 :光电子.激光 | 被引量 : 4次 | 上传用户:yangxin_ctbri
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提出了一种适合于现场的线结构光视觉传感器标定方法。建立了标定的数学模型,设计了一种平面点阵标靶,提出了坐标映射方法。根据结构光条纹特征点的图像坐标和对应在标靶坐标系下的坐标,以及相机内参,计算出标靶坐标系到摄像机坐标系的转移矩阵,再由转移矩阵得到特征点在摄像机坐标系下的坐标;在视场范围内,平面标靶按不同位姿摆放多次,获取投射在标靶上的所有特征点,对这些特征点进行平面拟合,得到结构光平面在摄像机坐标系下的方程。对标定的精度进行了验证,实验表明,本文方法标定过程简单,精度较高,适合于结构光传感器的现场标定。
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