黑白棋盘网格中的直线检测方法研究

摘要

黑白棋盘网格的直线检测在摄像机标定中具有重要的应用价值。针对黑白棋盘网格图像的特点及传统Hough变换直线检测方法中参数选择敏感的不足，在Hough变换的基础上进行了后续处理，结合最小二乘法获得黑白棋盘网格图像中的直线信息。最后，通过大量真实图像实验验证了方法的可行性，并与传统Hough变换方法及其改进方法进行了比较。%Line detection of black and white checkerboard grid has important application value in the camera calibration. According to the characteristics of?the checkerboard?grid image and the lack of parameter selection in line detection used traditional Hough transform,this paper makes the subsequent process based on traditional Hough transform,then accesses to the straight line information combined with the least-squares linear fitting method. Finally,it verifies the feasibility of the method by a large number of real image experiments,and compares with the traditional Hough transform method.