关键词: 标定, Tsai两步法, 切向畸变, 线性标定

Abstract: The article puts forward a more stable and accurate camera calibration method based on the Tsai two-stage method. In order to improve the precision of camera calibration, the tangential distortion of the lens is also considered besides the camera lens radial distortion involved in the Tsai two-stage method. In the process of solving the camera parameters, the first step gets the external parameters using the least square method as the same as the Tsai two-stage method, and then solves the linear equations on the distortion parameters K1, K2, K3, K4 using the least square method. The new method is proved by the experiment.

Key words: calibration, Tsai two-stage method, tangential distortion, linear calibration