面向内容的三维模型数据库设计及其检索系统的实现

Content-based Design and Implementation of 3D Model Database and Retrieval System

目前,对基于内容的三维模型检索的研究主要集中在检索过程所涉及到的算法方面,而对三维模型库的设计研究较少。为此,详细分析了面向内容的三维模型库的建立过程,重点论述三维模型库的组织结构和分类表的设计,提出一种三维模型分类的手工构造方法,开发了三维模型库的管理软件,并研制了三维模型检索的原型系统。其意义在于为三维模型检索研究提供一个结构合理、数据充分的三维模型库,从而为检索算法的研究奠定坚实的基础。

Most of the current available content-based 3D model retrieval techniques mainly focus on feature extraction and similarity measurement,and seldom involve the proper design of 3D model databases. This paper presents a content-based design and creation of 3D model databases. Firstly, the paper proposes a novel 3D model database structure by introducing a classification hierarchy in the design of 3D model databases. On the basis of the proposed database design, a 3D model database management module, and a prototype system of content-based 3D model retrieval are implemented. The proposed database structure is capable of providing well-structured and rich information in 3D model databases, and facilitates the implementation of content-based 3D model retrieval system.