Abstract
3D model search techniques play an important part in facilitating design reuse. This paper discusses 3D model searching issues in the application domain of mechanical CAD. For mechanical CAD models, both geometrical information and topological information are important for similarity assessment. We proposed two shape signatures to describe the geometry and the topology of a mechanical CAD model respectively. The two shape signatures are extracted from voxelized models. Experimental results suggest that the proposed method can help engineers effectively search out wanted models in several ways.
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