说明：  MATLAB对于二维相机的矫正或者相机标定提供了完整的解决方案，用户再也不需要写复杂的MATLAB图像处理程序来计算相机的intrinsic和extrinsic参数。作为用户来说，你的任务只是使用标准的矫正模版（calibration template)来照相，然后把这些图片提供给MATLAB相机矫正工具即可。
(MATLAB provides a complete solution for 2D camera calibration or camera calibration. Users no longer need to write complex MATLAB image processing programs to calculate intrinsic and extrinsic parameters of cameras. As a user, your task is to use the standard calibration template to take photos, and then provide these images to MATLAB camera correction tools.)