Research on a Type of Camera Calibration Method Based on High Precision Detection of X Corners

In order to meet the requirement of accurate and fast camera calibration, a method of high precision detection based on X corners is proposed. The 2-dimensional chessboard target is used as a template, in which, the sub-pixel coordinates of the X corners are extracted by using the Harris operator, so as to calculate the calibration parameters of the camera. The experiments show that this method has the advantages of short time consuming, simple operation and high precision, which is of important reference value in corner detection and camera calibration.