说明：  摄像机双目视觉标定流程及使用方法，包括摄像机内部参数标定，外部参数标定，摄像机与机械臂标定（手眼标定）
(Camera calibration process and the use of binocular vision, including the internal parameters of camera calibration, external calibration parameters, camera calibration and robot arm (hand-eye calibration))