关键词: 立体视觉, 立体匹配, 阶梯效应

Abstract: A novel stereo matching algorithm based on global optimization of slant-plane is proposed in this paper on the purpose of eliminating the “stair-case” problem appearing in the regions of non-parallel plane. Firstly, slant-plane replaces disparity as the optimization parameter in the global energy function to make wiser constraint for non-parallel planes. Secondly, the idea of particle filter is used to get an approximate continuous disparity while the new energy function is optimized. In theory, the proposed algorithm can eliminate the “stair-case” fundamentally in the reason of slant-plane consistency constraints and continuous disparity. Experiments on typical slant-plane scene indicate that the proposed algorithm can eliminate “stair-case” effectively as while as increasing matching rate.

Key words: stereo vision, stereo matching, stair-case