TASI法相机标定，实现一阶径变系数和焦距F的求解。误差为5个像素-TASI camera calibration method to achieve first-order path coefficient and focal length F of the Solution. Error of 5 pixels

相机标定，基于张正友标定法，用相机对准二维靶标，提取角点(wu eth trhhs gerg ehtrts theshb htesh)