光学精密工程2013，Vol.21Issue(2)：431-436,6.DOI:10.3788/OPE.20132102.0431
改进的非均匀有理B样条曲面片拼接算法
Improved curve surface seamless splicing based on NURBS
摘要
Abstract
This paper researched a splicing technology for gridded curve surfaces and improved the existing splice algorithms. On the basis of Hartley Judd chord length parameters, the joint vectors on Non-Uniform Rational B-spline(NURBS) curves were gotten. Then, joint vectors and curves were used to calculate control peaks with a reverse method and the projection transformation means was taken to obtain the weight factors. Furthermore, the control peaks on splicing surfaces were adjusted based on the requirements to allow the curve surfaces to reach G1 continuity. Finally, control peaks on gridded curve surfaces were modified wholly and they were rearranged to splice the curve surfaces seamlessly. The curve surfaces after splicing were measured by a special 3D software, and the results show that the method can splice multiple surfaces into a whole under a condition of continuous G1, and the average error is 0.0049° in experiments.关键词
非均匀有理B样条/曲面片/无缝拼接/曲面片算法Key words
Non-uniform Rational B-spline(NURBS)/ curve surface/ seamless splice/ curve surface algorithm分类
信息技术与安全科学引用本文复制引用
吴禄慎,高项清,熊辉,陈华伟..改进的非均匀有理B样条曲面片拼接算法[J].光学精密工程,2013,21(2):431-436,6.基金项目
国家自然科学基金资助项目(No.51065021) （No.51065021）
