1391 search results - page 22 / 279 » Optimally Sparse Frames |
IPPS
2000
IEEE
15 years 4 months ago
2000
IEEE
In this paper, we consider the problem of nding llpreserving ordering of a sparse symmetric and positive de nite matrix such that the reordered matrix is suitable for parallel fac...
ICIP
2010
IEEE
14 years 9 months ago
2010
IEEE
The 2- 1 compressed sensing minimization problem can be solved efficiently by gradient projection. In imaging applications, the signal of interest corresponds to nonnegative pixel...
106
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ICML
2006
IEEE
16 years 17 days ago
2006
IEEE
We consider the problem of fitting a large-scale covariance matrix to multivariate Gaussian data in such a way that the inverse is sparse, thus providing model selection. Beginnin...
106
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ISBI
2009
IEEE
15 years 6 months ago
2009
IEEE
We propose a novel framework to reconstruct the left ventricle (LV)’s 3D surface from sparse tagged-MRI (tMRI). First we acquire an initial surface mesh from a dense tMRI. Then ...
TSP
2008
14 years 11 months ago
2008
We consider the problem of estimating and detecting sparse signals over a large area of an image or other medium. We introduce a novel cost function that captures the tradeoff bet...