基于形状的3D模型快速检索算法

在三维模型大量出现的推动下,三维模型检索技术已在国内外取得了长足发展,并受到越来越多的研究人员的关注。本文主要研究讨论空域空间检索技术中的形状直方图算法,对原有形状直方图方法提出进一步改进。其基本算法是:先对模型进行一定的预处理和网格划分后,采用组合模式对模型进行切分,在构成形状直方图时,利用随机函数对特征量选择提取,并以面积比例作为其特征量。

Shape-based 3D model quick retrieval

With a large number of 3D model developed,the technique of 3D model retrieval become more mature at home and abroad,and this technique is paid more and more attention.This paper recommends the histogram retrieval method,and improves the old method.The approach consists of these strips: previous work and grid method,decompose the model with combined bins.Using the random function to select the eigenvector and compute it by area rate.