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5 March 2008 A method of camera calibration based on image processing
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Proceedings Volume 6623, International Symposium on Photoelectronic Detection and Imaging 2007: Image Processing; 66231Q (2008) https://doi.org/10.1117/12.791524
Event: International Symposium on Photoelectronic Detection and Imaging: Technology and Applications 2007, 2007, Beijing, China
Abstract
According to the principle of optical measurement, an effective and simple method to measure the distortion of CCD camera and lens is presented in this paper. The method is based on computer active vision and digital image processing technology. The radial distortion of camera lens is considered in the method, while the camera parameters such as the pixel interval and focus of camera are calibrated. The optoelectronic theodolite is used in our experiment system. The light spot can imaging in CCD camera from the theodolite. The position of the light spot should be changed without the camera's rotation, while the optoelectronic theodolite rotates an angle. All view reference points in the image are worked out by computing the angle between actual point and the optical center where the distortion can be ignored. The error correction parameters are computed, and then the camera parameters are calibrated. The sub-pixel subdivision method is used to improve the point detection precision in our method. The experiment result shows that our method is effective, simple and practical.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jin Duan, Chuiliu Kong, Dan Zhang, and Wenbo Jing "A method of camera calibration based on image processing", Proc. SPIE 6623, International Symposium on Photoelectronic Detection and Imaging 2007: Image Processing, 66231Q (5 March 2008); https://doi.org/10.1117/12.791524
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