Method of CCD Camera Calibration Based on OpenCV

Computer vision has been widely used in industry, agriculture, military, transportation area and so on. Camera calibration is very important and also the key research field of vision system. In this paper, a flexible high-precision Charge Coupled Device (CCD) camera calibration method suitable for industrial field is proposed. The pin-hole model has been introduced and applied in process of calibration. Specially, in order to improve the accuracy, both radial and tangential lens distortion have been taken into account during the implement of calibration based on OpenCV. This kind of arithmetic has practical value on the application design of image processing and computer vision. The experimental results show that proposed approach is feasible, with high precision. The method can meet the application need of visual inspection or other vision systems well.