Results 251 to 260 of about 320,618 (297)

Two-Dimensional Splines, Surface Splines, Bézier Splines, B-Splines

1996
Assume that we are given a rectangular grid G in the x,y-plane $$ G = \left\{ {\left. {(x_{i,} y_j )\,\,\,\,\,\,\,\,\,\,\,\,\left| \begin{gathered} a = x_0 < x_1 < \ldots < x_n = b \hfill \\ c = y_0 < y_1 < \ldots < y_m = d \hfill \\ \end{gathered} \right.} \right\}} \right. $$ with heights u ij defined at each point \( (x_i ,y_j ) \in G \) $$
Gisela Engeln-Müllges, Frank Uhlig
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Network Splines

Results in Mathematics, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bos, L. P., Holland, D.
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The Wilson-Fowler spline is a ν-spline

Computer Aided Geometric Design, 1986
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Discrete splines and spline filters

IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 1992
An equation is derived for the Z transform of discrete polynomial splines for the general case of nonuniform knots. Two filter structures are provided for the computation and analysis of discrete splines, one for the one-sided factorial function representation and one for the B-spline representation.
Üstüner, Kutay F., Ferrari, Leonard A.
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Extending Ball B-spline by B-spline

Computer Aided Geometric Design, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xinyue Liu, Xingce Wang, Zhongke Wu, Dan Zhang 0016, Xiangyuan Liu   +4 more
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From splines and snakes to snake splines

1993
Segmenting 3-D complex medical objects from sets of parallel slices may be a difficult task. We propose a new method of active contours (or snakes) that simplifies the classical approach of snakes by embedding the intrinsic energy in the spline nature of the surface to deform.
Francois Leitner, Philippe Cinquin
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Quadric splines

Computer Aided Geometric Design, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Prautzsch, H., Bangert, C.
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Voronoi Splines

IEEE Transactions on Signal Processing, 2010
We introduce a framework for construction of non-separable multivariate splines that are geometrically tailored for general sampling lattices. Voronoi splines are B-spline-like elements that inherit the geometry of a sampling lattice from its Voronoi cell and generate a lattice-shift-invariant spline space for approximation in Rd.
Mahsa Mirzargar, Alireza Entezari
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Splines on the sphere

Proceedings. 1998 IEEE Conference on Information Visualization. An International Conference on Computer Visualization and Graphics (Cat. No.98TB100246), 2002
There are many problems that involve data fitting of sets on the surface of a sphere, many of them for example in the geosciences. They are usually treated using some kind of mapping onto the plane, in order to later apply some method for the plane which is well-known and proven. This means precision loss in some zones and problems at the poles.
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Martensen Splines

BIT Numerical Mathematics, 2006
This paper is concerned with the construction of fundamental functions from the class of Martensen splines. These are Hermite-type polynomial splines in one dimension. The construction provides recursive formulae. Error estimates are presented too.
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