View-based 3D model retrieval with topological structure

With the rapidly increasing of 3D models, the view-based 3D model retrieval methods have received significant research attention. The previous view-based methods can achieve ideal retrieval result for the rigid models, but they only obtain poor retrieval result for the deformable models because they can not preserve the topological structure well. In this paper, we propose a view-based 3D model retrieval algorithm using topological structure. We extract the view-based features from the images rendered at the salient topological points. To preserve the topological structure of the 3D model, a multiresolutional reeb graph (MRG) is constructed according to the salient topological points. We take the view-based features as the attribute information of the corresponding MRG nodes. The comparison between two 3D models is transformed to compute the similarity of the corresponding MRGs. Experimental results on two standard benchmarks show that our algorithm can achieve satisfactory retrieval performance for both the deformable models and the rigid models.