关键词: 网格简化, 三角网格, 三角形折叠, 特征保持, 逆向工程

Abstract: To solve the problem of storage and transmission of 3D geometric model with huge data,a high quality triangular mesh simplification algorithm was proposed.The folding point of every triangle was determined by vertices projection method,and the costs of all collapse operations were calculated according to the folding points.The iterative simplification procedure was made based on the costs.The experiment results showed that the presented simplification algorithm could generate the high quality simplified model and reduce the error of the simplified model whilst preserving the sharp geometric features of the original model.

Key words: mesh simplification, triangle mesh, triangle collapse, feature-preserving, reverse engineering