Acta Optica Sinica, Volume. 34, Issue 12, 1215006(2014)
Improved Zhang′s Calibration Method and Experiments for Underwater Binocular Stereo-Vision
An improved Zhang′s calibration method is proposed, combined with Jean-Yves Bouguet vanishing point calibration method, aiming at improving the accuracy of underwater camera calibration and the establishment of nonlinear mathematical model which has a comprehensive consideration of radial distortion and tangential distortion on cameras underwater. In order to verify the feasibility and robustness of the improved method, underwater calibration experiments are carried out compared with Zhang′s calibration method. The experimental results show that both of the two methods have strong robustness, however, compared with Zhang′s calibration method, the improved one can achieve higher accuracy with smaller reprojection average error and the calibration results are closer to the actual results.
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Li Guangle, Huang Wenyou, Liu Qingsong, Deng Zhiyan. Improved Zhang′s Calibration Method and Experiments for Underwater Binocular Stereo-Vision[J]. Acta Optica Sinica, 2014, 34(12): 1215006
Category: Machine Vision
Received: Jul. 11, 2014
Accepted: --
Published Online: Nov. 7, 2014
The Author Email: Guangle Li (hnrlgl@163.com)