A Disparity Estimation Method Based on Curvature and Belief Propagation
ZHAO Ge1,2, LIN Lan1,2, TANG Yan-Dong1, WANG Yao-Nan3
1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016 2.University of Chinese Academy of Sciences, Beijing 100049 3.College of Electrical and Information Engineering, Hunan University, Changsha 410082
Abstract：The current widely used matching costs are sensitive to complex optical distortions, such as vignetting. By analyzing the camera model, the robustness of the curvature-based matching cost against the vignetting effect is proved. Then, the integral image is used to compute the curvature-based matching cost so that the speed of the algorithm is improved significantly. Finally, a regularization term is designed based on curvature constraint, and thus the over-smoothing of the disparity map is avoided by restricting the belief propagation in the depth discontinuity area. Experimental results verify the effectiveness of the proposed method.
赵戈，蔺蘭，唐延东，王耀南. 一种基于曲率与置信度传播的视差估计方法[J]. 模式识别与人工智能, 2013, 26(12): 1154-1160.
ZHAO Ge, LIN Lan, TANG Yan-Dong, WANG Yao-Nan. A Disparity Estimation Method Based on Curvature and Belief Propagation. , 2013, 26(12): 1154-1160.
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2013, Vol. 26 
