A Method of Camera Self-calibration Based on a Planar Template
WANG Nian1, FAN Yi-zheng2, LIANG Dong1, WEI Sui 1
1. Education Ministry Key Laboratory of Intelligent Computing & Signal Processing, Anhui University, Hefei 230039, China; 2. Department of Mathematics, Anhui University, Hefei 230039, China
王年, 范益政, 梁栋, 韦穗. 一种基于平面模板的摄像机自定标方法[J]. 机器人, 2004, 26(6): 538-542..
WANG Nian, FAN Yi-zheng, LIANG Dong, WEI Sui . A Method of Camera Self-calibration Based on a Planar Template. ROBOT, 2004, 26(6): 538-542..
Abstract：This paper first presents the homography between a plane in the scene and a plane of the image, and the absolute conic in space under an affine coordinates. With the homography under an affine coordinates, and using the constraints for circular points to camera intrinsic parameters, we obtain a group of equations from several images containing a planar template, which consists of an equilateral triangle with the inscribed circle. By linearly solving the above equations, we determine the intrinsic parameters. Experimental result shows that our approach is highly accurate.
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