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.