A Novel Approach for Determining Intrinsic Parameters of Camera Using Two Parallelograms
WANG Xiuping1,2,BAI Ruilin1,LIU Ziteng1
(1. Key Laboratory of Advanced Process Control for Light Industry of the Ministry of Education，Jiangnan University, Wuxi 214122, Jiangsu, China;2. Wuxi Professional College of Science and Technology， Wuxi 214028， Jiangsu, China)
Abstract： According to the relationship between crossratio and angle, a novel linear approach was proposed to determine the intrinsic parameters of the camera. The image coordinates of the two circular points were derived from two different methods concerning the images of two parallelograms using the Laguerre theorem and the invariance of crossratio. Then the intrinsic parameters of the camera are linearly calibrated from three images of parallelograms according to the circular points which are in the absolute conic(AC). Compared with the calibration method based on rectangles, this approach further weakens the required conditions. Therefore, it has a wide applicability. Extensive simulations and experimental results with real images show that the proposed approach is practicable.
王秀平1,2,白瑞林1,刘子腾1. 由任意平行四边形确定摄像机内参数的方法[J]. 上海交通大学学报（自然版）, .
WANG Xiuping1,2,BAI Ruilin1,LIU Ziteng1. A Novel Approach for Determining Intrinsic Parameters of Camera Using Two Parallelograms. J. Shanghai Jiaotong Univ.(Sci.) , 2015, 49(03): 366-370.
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