138 search results - page 18 / 28 » Approximation by Conic Splines |
SIAMSC
2011
13 years 2 months ago
2011
Given a certain function f, various methods have been proposed in the past for addressing the important problem of computing the matrix-vector product f(A)b without explicitly comp...
JCAM
2011
12 years 10 months ago
2011
Root lattices are efficient sampling lattices for reconstructing isotropic signals in arbitrary dimensions, due to their highly symmetric structure. One root lattice, the Cartesia...
IMAMS
2007
13 years 8 months ago
2007
In this paper, we consider the problem of analysing the shape of an object defined by polynomial equations in a domain. We describe regularity criteria which allow us to determine...
GRAPHICSINTERFACE
2004
13 years 8 months ago
2004
We present a novel algorithm for accurate, high quality point rendering, which is based on the formulation of splatting using homogeneous coordinates. In contrast to previous meth...
PG
2002
IEEE
14 years 9 days ago
2002
IEEE
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...