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基于Delaunay三角化和谱方法的非精确点模式匹配算法

DOI: 10.11834/jig.20090723

Keywords: Delaunay三角化,谱方法,局部结构,点模式匹配

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Abstract:

当两个要匹配的点模式不同构时,以谱方法为基础的点模式匹配算法性能较差。为了提高谱方法对非同构点模式的匹配性能,将Delaunay三角化过程与谱方法结合起来,提出了一种新的非精确点模式匹配算法。该算法为了缩小非对应点的影响范围,在Delaunay三角化的基础上定义点模式的局部结构,并通过在局部结构层次上应用谱方法找出最相似的局部结构对,然后以此为指导对两个点模式内剩下的点进行匹配。仿真实验结果表明,该算法优于现有的以谱方法为基础的点模式匹配算法。

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