CAJ | 학술논문

为了减少亚像素立体匹配中存在的错误匹配以及提高匹配精度，提出基于多策略融合的亚像素精度立体匹配方法。通过以下三个步骤实现：原图像插值处理结合基于最小生成树代价聚集策略估计分数视差；给出新的视差搜索范围确定关系，减少匹配代价计算；在大片低纹理区域引入视差平面拟合细化视差，在亚像素精度上平滑，减少错误匹配。实验表明，算法有效地将匹配精度提高到亚像素级，同时减少了错误匹配。
위료감소아상소입체필배중존재적착오필배이급제고필배정도，제출기우다책략융합적아상소정도입체필배방법。통과이하삼개보취실현：원도상삽치처리결합기우최소생성수대개취집책략고계분수시차；급출신적시차수색범위학정관계，감소필배대개계산；재대편저문리구역인입시차평면의합세화시차，재아상소정도상평활，감소착오필배。실험표명，산법유효지장필배정도제고도아상소급，동시감소료착오필배。
To reduce the mismatching in stereo matching at sub-pixel level and to improve matching accuracy,we propose a multi-strategy integration-based sub-pixel accuracy stereo matching method.It is mainly implemented in the following three steps:the processing of original image interpolation in combination with estimating the fractional disparity by minimum spanning tree-based cost aggregation strategy;providing new disparity search scope to determine the relations and decreasing the matching cost computation;introducing disparity plane in a large area of low-textured regions to fit and refining the disparity,smoothing on the accuracy at sub-pixel level,and reducing mismatching.Experiments show that the algorithm can effectively improve the matching accuracy to sub-pixel level while reducing mismatching.