3D Model Retrieval Method Based on Segmentation of Feature Point
Hui Liu · Computer Technology and Development · 2013
Aiming at 3D model didn’t fully consider the model’s partial information for the current retrieval algorithms,present an improved method of feature point segmentation to construct mesh map for 3D model retrieval.First feature points and the core part of the model are extracted,and then compute each triangular piece flatness,regarding feature point as seed patch,flatness difference value as a growth factor,using watershed segmentation model method,can get each part of the collection of surface for the model,and then use the set of the topological relationship between surface to create characteristic tree,and ultimately compare feature tree of different models to get their matching degree,according to which is retrieved.The algorithm is implemented in the developing environment of Visual C++ 6.0.Experiments show that the method can effectively utilize the partial information of model,obtain more precision on the same recall and better result.