基于岭估计的相机标定方法

Ridge estimate-based method for camera calibration

相机内外参数标定是摄影测量的一个关键问题,相机参数的选取又是决定相机标定质量的重要因素,且不同等级的相机其参数的选择往往很难确定,常导致所选取的参数之间存在相关性,影响相机标定质量。相机参数间的相关性一般可以通过验后未知数之间的相关系数矩阵发现,提出了基于岭估计的相机标定方法,利用本方法可以提高参数求解精度。

Camera calibration is the key of photogrammetry. Because of the complexity of camera model, it＇ s difficult to select a right parameters model for certain camera, which will result in correlation between the selected parameters and reducing the accuracy of camera calibration. The correlation can be detected by the parameters coefficient matrix. So a camera calibration method based on ridge estimate is put forward in this paper. The experiment shows that this method can improve calibration accuracy.