首页|Dubuc-Deslauriers细分格式生成函数递推公式

Dubuc-Deslauriers细分格式生成函数递推公式

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细分格式是一种在初始控制网格基础上,通过迭代局部加细并应用特定拓扑规则,逐步形成光滑曲线或曲面的迭代方法.m重2N点Dubuc-Deslauriers细分格式是一种广泛应用的插值型格式.当重数m或N较大时,由于涉及多个控制顶点,Dubuc-Des-lauriers 细分格式面临计算效率和稳定性的挑战.通过将一次加细操作分解为多次小范围操作,Dubuc-Deslauriers细分格式的递推公式形式有效提高了计算稳定性.给出了 m重2N点Dubuc-Deslauriers细分格式递推公式的生成函数的表达式,并探讨了 2重和3重情况的特殊形式.
The recurrence relation for generating functions of Dubuc-Deslauriers subdivision schemes
Subdivision schemes are iterative methods for creating smooth curves or surfaces by itera-tively refining a starting control mesh and applying specific topological rules.The m-ary 2N-point Dubuc-Deslauriers subdivision scheme is widely employed as an interpolatory scheme.When the aritym or N is large,the Dubuc-Deslauriers subdivision scheme encounters challenges related to computa-tional efficiency and stability due to the involvement of a relatively large number of control vertices.By dividing a single refinement operation into multiple smaller-scale operations,the recursive formula of the Dubuc-Deslauriers scheme effectively improves computational stability.This paper presents the expression for the generating function of the recursive formula for the m-ary 2N-point Dubuc-Deslauriers subdivision schemes and explores the special forms for the cases of binary and ternary subdivision schemes.

Dubuc-Deslauriers subdivision schemesgenerating functionrecurrence relationpseudo-spline subdivision schemes

亓万锋、刘美彤、曹宏、孙雯雯

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辽宁师范大学数学学院,辽宁大连 116081

Dubuc-Deslauriers细分格式 生成函数 递推公式 拟样条细分格式

辽宁省教育厅青年项目

LQ2020020

2024

辽宁师范大学学报(自然科学版)
辽宁师范大学

辽宁师范大学学报(自然科学版)

影响因子:0.491
ISSN:1000-1735
年,卷(期):2024.47(1)
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