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A Two-Tiered Retrieval Method of CAD Model Based on Spectral Theory and Face Code

机译:基于光谱理论与面部代码的CAD模型的双层检索方法

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This paper proposes a novel two-tiered retrieval method for CAD models based on the graph spectral theory and facecode to match three dimension (3D) CAD models with undirected graphs. This approach applies a hierarchical featuredescriptor, a two-tiered retrieval mechanism to represent and retrieval CAD models. The first tier is rapid roughmatching, which is a similarity metric by weighted bipartite graph matching between library models and retrievalmodels. Second tier is exact matching through comparing face code. Experimental results show the proposed methodcould improve the efficiency of retrieval performance, and achieve the reuse of CAD model.
机译:本文提出了一种基于图谱理论和面部的CAD模型的新型双层检索方法匹配三维(3D)CAD模型的代码,具有无向图形。此方法适用分层功能描述符,代表和检索CAD模型的双层检索机制。第一层很快粗糙匹配,这是一种相似度量,由库模型和检索之间的加权二分钟图匹配楷模。通过比较面代码,第二层完全匹配。实验结果表明了所提出的方法可以提高检索性能的效率,实现CAD模型的重用。

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