Improved non-uniform subdivision scheme with modified Eigen-polyhedron  

作　　者：Jingjing Zhang Yufeng Tian Xin Li 

机构地区：[1]School of Mathematical Sciences,Anhui University,Hefei 230601,Anhui,China [2]School of Mathematical Sciences,University of Science and Technology of China,Hefei 230026,Anhui,China

出　　处：《Visual Computing for Industry,Biomedicine,and Art》2022年第1期214-223,共10页工医艺的可视计算（英文）

基　　金：This work was supported by the National Key R&D Program of China,No.2020YFB1708900;Natural Science Foundation of China,Nos.61872328 and 11801126.

摘　　要：In this study,a systematic refinement method was developed for non-uniform Catmull-Clark subdivision surfaces to improve the quality of the surface at extraordinary points(EPs).The developed method modifies the eigenpolyhedron by designing the angles between two adjacent edges that contain an EP.Refinement rules are then formulated with the help of the modified eigenpolyhedron.Numerical experiments show that the method significantly improves the performance of the subdivision surface for non-uniform parameterization.

关 键 词：Subdivision surface Eigen polyhedron Non-uniform Catmull-Clark surface 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]