Stereo Correspondence with Occlusion Handling in a Symmetric Patch-Based Graph-Cuts Model

—A novel patch-based correspondence model is presented in this paper. Many segment-based correspondence approaches have been proposed in recent years. Untextured pixels and boundaries of discontinuities are imposed with hard constraints by the discontinuity assumption that large disparity variation only happens at the boundaries of segments in the above approaches. Significant improvements on performance of untextured and discontinuity area have been reported. But, the performance near occlusion is not satisfactory because a segmented region in one image may be only partially visible in the other one. To solve this problem, we utilize the observation that the shared edge of a visible area and an occluded area corresponds to the discontinuity in the other image. So, the proposed model conducts color segmentation on both images first and then a segment in one image is further cut into smaller patches corresponding to the boundaries of segments in the other when it is assigned with a di...

• Type: Journal
• Year: 2007
• Where: PAMI
• Authors: Yi Deng, Qiong Yang, Xueyin Lin, Xiaoou Tang
• Keywords: Discontinuity Assumption, Large Disparity Variation, Many Segment-based Correspondence, PAMI 2007