77 search results - page 3 / 16 » Approximating Functions From Sampled Fourier Data Using Spli... |
WCE
2007
13 years 7 months ago
2007
Abstract— Common MRI sampling patterns in kspace, such as spiral trajectories, have nonuniform density and do not lie on a rectangular grid. We propose mapping the sampled data t...
CGF
2008
13 years 5 months ago
2008
We present a generalization of thin-plate splines for interpolation and approximation of manifold-valued data, and demonstrate its usefulness in computer graphics with several app...
ICIP
2005
IEEE
14 years 7 months ago
2005
IEEE
We provide a new comparison between hexagonal and orthogonal lattices, based on approximation theory. For each of the lattices, we select the "natural" spline basis func...
MA
2010
Springer
13 years 16 days ago
2010
Springer
This work proposes to generalize the method of cokriging when data are spatially sampled curves. A spatial functional linear model is constructed including spatial dependencies be...
CAGD
2008
13 years 5 months ago
2008
The minimum-supported bivariate C2-cubic spline on a 6-directional mesh constructed in our previous work [2] can be used to extend Loop's approximation subdivision scheme to ...