关键词: 三维模型检索, 面积分布算子, 傅里叶变换

Abstract: Large numbers of 3D model have been used in the product design and 3D artifact, but problems have occurred that attribute data is incomplete; the search method is inaccurate based on attributes. Consequently, the search engines can not provide effective search service. This paper proposes an area distributions based method. According to this method, summarize the total area and average area of the vertex of the 3D model, normalize the list of the area distributions list and Fourier transform the list; get the final area distributions list model, and map the search of the model to compare the area distributions list. Experiments have been conducted for comparing and evaluating the proposed algorithm utilizing the Engineering Shape Benchmark（ESB）database. The experiential results show that the proposed technique has effectively reflected the similarity among engineering models, and the match result of the extremely similar model is accurate and the retrieval performance has been significantly improved compared with traditional shape distribution method.

Key words: engineering model retrieval, area distributions, Fourier transform