基于部件替换的三维模型生成方法

3D Model Generation Method Based on Part Replacement

对给定的两个三维模型进行层次构建与部件替换,生成一系列新颖的模型。首先对模型进行接触分析、对称检测和层次结构生成;然后通过形状匹配确保两个模型生成的层次节点一对一匹配,进而通过部件替换生成若干模型,最后进行部件连接确保模型的接触合理性。实验表明,该方法可以快速生成一系列与原模型在外观上有所不同,但具有类似的对称和邻接结构的新模型。

A series of novel 3D models are generated based on given two models by constructing their hierarchy structures and replacing parts. First the shape analysis is implemented ,which involves contact analysis, symmetry detection and hierarchy structure generation. Then a one-to-one node mapping is established by shape matching, and new models could be generated by part replacement. Finally, parts is connected to ensure the contact reasonability of the generated model. Experiment results show that the method is competent to quickly generate varies of novel models which are similar to the original model in symmetry and adjacent structure, but different in appearance.