计算机工程与应用 ›› 2014, Vol. 50 ›› Issue (6): 135-138.

• 图形图像处理 • 上一篇    下一篇

双参数五点插值细分法

张艳艳,檀结庆   

  1. 合肥工业大学 数学学院,合肥 230009
  • 出版日期:2014-03-15 发布日期:2015-05-12

Five-point interpolating subdivision scheme with two parameters

ZHANG Yanyan, TAN Jieqing   

  1. School of Mathematics, Hefei University of Technology, Hefei 230009, China
  • Online:2014-03-15 Published:2015-05-12

摘要: 提出包含两个参数的五点ternary插值细分法。利用生成多项式等方法对细分法的一致收敛性,[CK]连续性进行了分析。讨论了参数对细分法的收敛性及连续性的影响,同时给出了细分法[C0]到[C2]连续的充分条件和数值算例。

关键词: ternary细分法, 插值, 一致收敛性, [CK]连续性

Abstract: A new scheme is presented to design subdivision curves by introducing two control parameters in the ternary subdivision scheme. The sufficient conditions of the uniform convergence property and [CK]continuity properties of the five-point ternary subdivision scheme with two parameters are proved. It can generate [C2] limit functions by choosing two parameters appropriately. Some examples of the curve design are given to show the efficiency of the proposed subdivision scheme.

Key words: ternary subdivision scheme, interpolation, uniform convergence, [CK]-continuity