5 search results - page 1 / 1 » Nonlinear kernel backprojection for computed tomography |
ICASSP
2010
IEEE
13 years 5 months ago
2010
IEEE
In this paper, we propose a kernel backprojection method for computed tomography. The classical backprojection method estimates an unknown pixel value by the summation of the proj...
ICASSP
2011
IEEE
12 years 8 months ago
2011
IEEE
We propose a sinogram restoration method which consists of a patch-wise non-linear processing, based on a sparsity prior in terms of a learned dictionary. An off-line learning pro...
FLAIRS
1998
13 years 6 months ago
1998
Computer assisted tomography (CAT) systems demandlarge amounts of time and space. In this paper, wedescribe an approachto solving the CAT problemusing several AItechniques includi...
CORR
2010
Springer
13 years 5 months ago
2010
Springer
We propose a direct reconstruction algorithm for Computed Tomography, based on a local fusion of a few preliminary image estimates by means of a non-linear fusion rule. One such ru...
VIS
2004
IEEE
14 years 6 months ago
2004
IEEE
Accurate estimation of vessel parameters is a prerequisite for automated visualization and analysis of healthy and diseased blood vessels. The objective of this research is to est...