1582 search results - page 86 / 317 » On sparse signal representations |
143
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ICASSP
2011
IEEE
14 years 10 months ago
2011
IEEE
We propose an approach for the estimation of sparse filters from a convolutive mixture of sources, exploiting the time-domain sparsity of the mixing filters and the sparsity of ...
168
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ICASSP
2008
IEEE
16 years 1 months ago
2008
IEEE
Compressed sensing allows perfect recovery of sparse signals (or signals sparse in some basis) using only a small number of measurements. The results in the literature have focuse...
173
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ICASSP
2009
IEEE
16 years 1 months ago
2009
IEEE
In this paper, we propose a Bayesian model and a Monte Carlo Markov chain (MCMC) algorithm for reconstructing images that consist of only few non-zero pixels. An appropriate distr...
180
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NIPS
2008
15 years 8 months ago
2008
This paper addresses the problem of sparsity pattern detection for unknown ksparse n-dimensional signals observed through m noisy, random linear measurements. Sparsity pattern rec...
161
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ICIP
1994
IEEE
16 years 8 months ago
1994
IEEE
The high noise sensitivity of the Wigner distribution makes smoothing a necessity for producing readable time-frequency images of noise corrupted signals. Since h e a r smoothing ...