Camera calibration is a crucial step in optical measurement,which directly affects the accuracy of optical measurement.The accuracy of camera calibration is related to the posture and position of the calibration board,as well as the number of calibration board images.However,there are currently few reports on systematic and in-depth research on these factors.The influence of calibration board inclination angle,calibration board position in the field of camera view,and the number of calibration board images on camera calibration accuracy is comprehensively studied in this paper.The results show that when the inclination angle of the calibration board is about 25°,the distance between the center of the calibration board and the center of the camera's field of view is approximately 400pixel(image size is 2048pixel × 2048pixel),and the number of calibration board images is about 20,the camera calibration accuracy reaches the best.The results have certain reference significance for the selection of calibration board pose and number of images during camera calibration.
关键词
相机标定/标定板位姿/重投影误差/标定精度
Key words
camera calibration/calibration board position and posture/re-projection error/calibration accuracy
维普
万方数据