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题名: 一种基于曲率与置信度传播的视差估计方法
其他题名: A Disparity Estimation Method Based on Curvature and Belief Propagation
作者: 赵戈 ; 蔺蘭 ; 唐延东 ; 王耀南
作者部门: 机器人学研究室
关键词: 视差估计 ; 曲率 ; 置信度传播 ; 光学畸变
刊名: 模式识别与人工智能
ISSN号: 1003-6059
出版日期: 2013
卷号: 26, 期号:12, 页码:1154-1160
收录类别: CSCD
产权排序: 1
摘要: 常用的匹配代价容易受到光晕效应等复杂光学畸变的影响.文中通过对相机成像模型的分析,从理论上证明基于曲率的匹配代价对光晕具有较强的鲁棒性.提出一种在积分图像上对基于曲率的匹配代价进行计算的方法,有效提高算法速度.最后,将曲率约束引入到置信度传播算法正则项的设计中,抑制置信度在深度不连续区域之间的传递,防止过平滑现象的产生.实验结果验证文中方法的有效性.
英文摘要: 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.
语种: 中文
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/14710
Appears in Collections:机器人学研究室_期刊论文

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