نتایج جستجو برای: b splines

تعداد نتایج: 903470  

2002
Zhiyong Xie Gerald E. Farin

Deformation has received wide attention in the eld of Computer Graphics, Computer Vision and Image Processing. This paper describes a new method which is based on the concept of hierarchical BSplines. Compared with existing methods, our approach is adaptive in that it puts more e ort in complex regions which need more attention. It also provides an elegent tool for curve or surface matching tog...

2005
József Gáti Barnabás Bede

The usefulness of fuzzy input fuzzy output functions and their interpolation/approximation by different operators in fuzzy control motivate their deeper theoretical study. We obtain some properties of fuzzy B-spline series such as variation and uncertainty diminishing property. We also propose spline approximation of fuzzy input fuzzy output functions. Key–Words: Fuzzy numbers, Fuzzy splines, A...

2008
Renhong Wang Yan Xu Zhiqiang Xu

Abstract In this paper, we explore the interrelationship between Eulerian numbers and B splines. Specifically, using B splines, we give the explicit formulas of the refined Eulerian numbers, and descents polynomials. Moreover, we prove that the coefficients of descent polynomials D d (t) are logconcave. This paper also provides a new approach to study Eulerian numbers and descent polynomials.

Journal: :Journal of Computational and Applied Mathematics 2004

Journal: :Computers & Mathematics with Applications 2015

Journal: :Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention 2006
Daniel Rueckert Paul Aljabar Rolf A. Heckemann Joseph V. Hajnal Alexander Hammers

In this paper we propose a diffeomorphic non-rigid registration algorithm based on free-form deformations (FFDs) which are modelled by B-splines. In contrast to existing non-rigid registration methods based on FFDs the proposed diffeomorphic non-rigid registration algorithm based on free-form deformations (FFDs) which are modelled by B-splines. To construct a diffeomorphic transformation we com...

Journal: :Journal of Approximation Theory 2005
Simon Foucart

We prove that the zeros of the derivatives of any order of a B-spline are increasing functions of its interior knots. We then prove that if the interior knots of two Bsplines interlace, then the zeros of their derivatives of any order also interlace. The same results are obtained for Chebyshevian B-splines.

Journal: :SIAM Journal on Applied Mathematics 2019

Journal: :Computer Methods in Applied Mechanics and Engineering 2010

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