21 June 2015 A simple and flexible calibration method of non-overlapping camera rig
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A simple and flexible method for non-overlapping camera rig calibration that includes camera calibration and relative poses calibration is presented. The proposed algorithm gives the solutions of the cameras parameters and the relative poses simultaneously by using nonlinear optimization. Firstly, the intrinsic and extrinsic parameters of each camera in the rig are estimated individually. Then, a linear solution derived from hand-eye calibration scheme is proposed to compute an initial estimate of the relative poses inside the camera rig. Finally, combined non-linear refinement of all parameters is performed, which optimizes the intrinsic parameters, the extrinsic parameters and relative poses of the coupled camera at the same time. We develop and test a novel approach for calibrating the parameters of non-overlapping camera rig using camera calibration and hand-eye calibration method. The method is designed inter alia for the purpose of deformation measurement using the calibrated rig. Compared the camera calibration with hand-eye calibration separately, our joint calibration is more convenient in practice application. Experimental data shows our algorithm is feasible and effective.
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Banglei Guan, Banglei Guan, Yang Shang, Yang Shang, Qifeng Yu, Qifeng Yu, Zhihui Lei, Zhihui Lei, Xiaohu Zhang, Xiaohu Zhang, } "A simple and flexible calibration method of non-overlapping camera rig", Proc. SPIE 9528, Videometrics, Range Imaging, and Applications XIII, 95280Y (21 June 2015); doi: 10.1117/12.2184550; https://doi.org/10.1117/12.2184550


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