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An Intelligent Calibration Method for Camera with Occlusion

In order to overcome the need for the user to give additional information on the calibration template during the camera calibration process, or the fully automatic calibration point recognition algorithm can not accurately calibrate the intrinsic parameters of the camera within the occlusion situation, the paper proposes an intelligent calibration method based on GSI coded point in the presence of significant occlusions. The method uses the GSI target attached with the GSI code to calibrate the intrinsic parameters of the camera, and proposes an automatic detection and matching algorithm for the image feature points under the new calibration plate. In addition, it can maintains the intrinsic parameter calibration accuracy of the calibration plate under partial occlusion. The detection algorithm is efficient and free of parameters. The final experimental results show that the error is very small when the calibration plate is partially occluded, which can meet the calibration accuracy requirements of the camera. The recognition and matching algorithm is robust.