基于法向量场的散乱点集三角网格化  

Triangulation mesh generation of scatter points based on normal field

作　　者：偶春生[1] 张佑生[2] 高隽[2] 汪荣贵[2] 

机构地区：[1]合肥工业大学特种显示技术教育部重点实验室,安徽合肥230009 [2]合肥工业大学计算机与信息学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2008年第6期858-862,共5页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(60575023)

摘　　要：文章提出了基于散乱空间点集进行曲面重建的新方法,即从散乱点集的空间位置信息中估算出待建曲面的法向量场,构造基于法向量的曲面重建控制方法和控制参数,并用该参数来确定拓扑重建的搜索空间,采用面片生长的方式重建曲面。该方法在快速获得正确的拓扑连接的同时,直接生成用较少的面片就能保持曲面特征的优化网格。The normal field as a key feature of the surface is computed from the coordinate information of scatter points. Based on the normal field, a factor controlling the surface reconstruction is presented. Using this factor, the mesh of the surface can be created by growing each new patch. The mesh can be rapidly reconstructed and also optimized with the shape feature being maintained. The method is proved to be efficient by experimental results.

关 键 词：散乱点集 三角化网格 逆向工程 法向量场 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]