基于多特征融合的三维模型检索

3D Model Retrieval Method Based on Multiple Feature Fusion

特征的选择、表示和融合是基于多特征三维模型检索技术的关键,现有成果大多没有兼顾模型的整体和局部,且特征表示复杂度高.提出了一种基于多特征融合的三维模型检索方法,提取ORB特征描述模型局部信息,并在提取Canny边缘信息的基础上,进一步提取形状上下文特征描述全局信息,融合ORB特征和形状上下文特征得到一个新的特征表示三维模型,通过计算模型相似度得出最终检索结果.试验结果表明,本方法能有效提高检索性能.

The selection of features,the representation of features,and the mode of fusion were key processes of 3D model retrieval technology.In the paper,a new 3D model retrieval method which was based on multiple feature fusion was proposed.It combined the fast ORB features and the precise shape context features.ORB features described the local information.After extracting the Canny edge information,the shape context features were extracted to describe the global information,then the final similarity was calculated based on shape context features and ORB features.Experimental results demonstrated that our method could effectively improve retrieval performance.