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误差可控的近似B样条曲面蒙皮算法 被引量:2

An Error Bounded Algorithm for Approximate B-Spline Surface Skinning
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摘要 B样条曲面蒙皮是曲面造型中常用的一种造型方式,传统的蒙皮算法会导致最终的蒙皮曲面含有大量的控制点.在Piegl算法的基础上,提出一种更加高效且误差可控的近似蒙皮算法.对B样条基函数的最大值进行了更为精确的估计,并且充分利用B样条基函数的局部支撑性,尽可能多地删除相容性处理后B样条曲线的控制点,使得蒙皮算法更加有效.实验结果表明,在同样的误差范围内,文中算法可以比Piegl算法减少更多的控制点. B-spline surface skinning is a commonly used tool in surface modeling. Huge amounts of control points will be introduced in the skinned surface by traditional skinning approach. This paper proposes an efficient approximating skinning algorithm for constructing B-spline surface based on Piegl's approach. By a more precise estimation of maximum value of a B-spline basis function and utilizing of the local support property of B-spline basis function, the control points of a set of compatible B-spline curves are reduced, which makes the skinning algorithm more effective. Under the same error bound, experimental results showed that our algorithm can reduce more control points than Piegl's.
出处 《计算机辅助设计与图形学学报》 EI CSCD 北大核心 2008年第11期1477-1482,共6页 Journal of Computer-Aided Design & Computer Graphics
基金 国家"九七三"重点基础研究发展规划项目(2004CB719404) 国家自然科学基金重点项目(60635020).
关键词 B样条 蒙皮 曲线相容性处理 B-spline skinning curve compatibility
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参考文献14

  • 1Woodward C D. Cross sectional design of B spline surfaces[J].Computers & Graphics, 1987, 11(2): 193-201
  • 2Woodward C D. Skinning techniques for interactive B -spline surface interpolation[J]. Computer-Aided Design, 1988, 20 (8) : 441-451
  • 3汪国平.曲面、实体造型中的一些几何操作[R].北京:清华大学,1999
  • 4Piegl L A, Tiller W, Surface skinning revisited [J]. The Visual Computer, 2002, 18(4): 273-283
  • 5Lyche T, Morken, K. Knot removal for parametric B spline curves and surfaces [J]. Computer Aided Geometric Design, 1987, 4(3): 217-230
  • 6Lyche T, Morken K. A data reduction strategy for splines with applications to the approximation of functions and data [J]. IMA Journal of Numerical Analysis, 1988. 8(2):185- 208
  • 7Park H, Kim K, Lee S C. A method for approximate NURBS curve compatibility based on multiple curve refitting[J].Computer Aided Design, 2000, 32(4) :237-252
  • 8Park H, Kim K. Smooth surface approximation to serial cross-sections[J]. Computer -Aided Design, 1996, 28(12) 995-1005
  • 9Piegl I. A, Tiller W. Sureace approximation co scanned data [J].The Visual Computer, 2000, 16(7) : 386-a95
  • 10Piegl L A, Tiller W. Reducing control points in surface interpolation [J]. IEEE Computer Graphics and Applications, 2000, 20(5): 70-74

同被引文献14

  • 1陈文亮,张胜,金修宝.有限元网格的孔洞修补算法研究[J].计算机学报,2005,28(6):1068-1070. 被引量:5
  • 2张乐年,周来水,周儒荣.NURBS双向蒙皮造型方法的研究与实现[J].软件学报,1997,8(6):470-474. 被引量:6
  • 3Woodward C.Skinning techniques for interactive B-spline surface interpolation[J].Computer-Aided Design,1988,20(8):441-451.
  • 4Piegl L,Tiller W.Reducing control points in surface in-terpolation[J].IEEE Computer Graphics and Applications,2000,20(5):70-74.
  • 5De Boor C.A practical guide to splines[M].Berlin:Springer Press,1978.
  • 6Park H.Lofted B-spline surface interpolation by linearly constrained energy minimization[J].Computer-Aided De-sign,2003,35(14):1261-1268.
  • 7Wang W K,Zhang H,Park H,et al.Reducing control points in lofted B-spline surface interpolation using common knot vector determination[J].Computer-Aided Design,2008,40(8):999-1008.
  • 8Piegl L,Tiller W.The NURBS book[M].Berlin:Springer Press,1997.
  • 9Park H,Lee J H.B-spline curve fitting based on adaptive curve refinement using dominant points[J].Computer-Aided Design,2007,39(6):439-451.
  • 10Ma W Y,Kruth J P.Parameterization of randomly mea-sured points for least squares fitting of B-spline curves and surfaces[J].Computer-Aided Design,1995,27(9):663-675.

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