特征间互补性结合使用的3D模型检索技术

三维（3D）模型检索是多媒体信息检索的热点研究问题之一。针对基于单一形状特征的3D模型检索存在 的不足，提出了结合多种形状特征进行模型检索的方法。把模型的面积分布和纬度方向平均半径2种特征被应用 于模型检索。实验结果表明，由于不同形状特征的互补性，采用多种形状特征可以得到更好的检索准确率。

3D model retrieval technique using complementarity of features

Content-based 3D retrieval has attracted more and more researchers' interests due to the increasing of 3D models. A main problem in 3D-retrieval is how to extract discriminative shape features to measure the similarity and dissimilarity between different models. However, any shape feature has its advantage as well as its weakness. Differing with previous work, this paper proposed a 3D retrieval algorithm based on hybrid shape features. Two kinds of shape features named area distribution and latitude orientation average radius are extracted and used for similarity calculation. Experiments show retrieving accuracy based on hybrid shape features has a greater improvement than that on single shape feature.