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» A variational approach to spline curves on surfaces
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CAGD
2005
86views more  CAGD 2005»
13 years 4 months ago
A variational approach to spline curves on surfaces
Given an m-dimensional surface in Rn , we characterize parametric curves in , which interpolate or approximate a sequence of given points pi and minimize a given energy functio...
Helmut Pottmann, Michael Hofer
GRAPHITE
2004
ACM
13 years 10 months ago
Smooth constraints for spline variational modeling
This article introduces a new class of constraints for spline variational modeling, which allows more flexible user specification, as a constrained point can ”slide” along a...
Julien Lenoir, Laurent Grisoni, Philippe Meseure, ...
PG
2002
IEEE
13 years 9 months ago
Approximation with Active B-Spline Curves and Surfaces
An active contour model for parametric curve and surface approximation is presented. The active curve or surface adapts to the model shape to be approximated in an optimization al...
Helmut Pottmann, Stefan Leopoldseder, Michael Hofe...
CAGD
2002
87views more  CAGD 2002»
13 years 4 months ago
Uniform hyperbolic polynomial B-spline curves
This paper presents a new kind of uniform splines, called hyperbolic polynomial B-splines, generated over the space = span{sinht,cosht,tk-3,tk-4,...,t,1} in which k is an arbitra...
Yonggang Lü, Guozhao Wang, Xunnian Yang
WSCG
2003
165views more  WSCG 2003»
13 years 6 months ago
A Shape Constrained Curve Approximation Method for Styling Surfaces Modeling
The problem of styling surfaces modeling is tackled. An approach based on section curves fairing is chosen. The concept of template curves is developed for approximating profiles ...
Yves Mineur