一种基于2维多边形集相似性的3维模型检索方法

A 3D Model Retrieval Method Based on the Similarity Between 2D Polygon Sets

提出了一种基于 2维多边形集相似性度量的 3维模型检索方法 ,它的主要思想是用一组沿着特定方向的2维切片表示 3维模型 ,其中这些 2维切片由多个多边形组成 ,从而将 3维形状之间的匹配问题转换为多边形集之间的相似性度量问题。这种方法涉及以下 3个问题 :切片方向的选择、切割方法和多边形集之间的相似性度量。针对这些问题 ,分别给出了相应的方法和规则 。

In this paper, we present an approach based on similarity measuring between 2D polygon sets for 3D model retrieval. The basic idea is to represent the 3D model by a series of slices composed of 2D polygon sets along certain directions. In this way, the shape-matching problem between 3D models is transformed into the similarity measuring between 2D polygon sets, in which three problems are involved: the selection of cutting directions, cutting methods and similarity measuring. To solve these problems, some strategies and rules are proposed, and their are proved by some experiments.