1582 search results - page 31 / 317 » On sparse signal representations |
ICASSP
2008
IEEE
15 years 6 months ago
2008
IEEE
The emerging theory of compressed sensing (CS) provides a universal signal detection approach for sparse signals at sub-Nyquist sampling rates. A small number of random projection...
DAGM
2001
Springer
15 years 4 months ago
2001
Springer
In this paper, we present a new approach to scale-space which is derived from the 3D Laplace equation instead of the heat equation. The resulting lowpass and bandpass filters are...
CORR
2008
Springer
14 years 12 months ago
2008
Springer
1 Recently, great attention was intended toward overcomplete dictionaries and the sparse representations they can provide. In a wide variety of signal processing problems, sparsity...
184
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ICCV
2011
IEEE
13 years 12 months ago
2011
IEEE
This paper proposes a novel sparse representation model called centralized sparse representation (CSR) for image restoration tasks. In order for faithful image reconstruction, it ...
107
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NIPS
2003
15 years 1 months ago
2003
In this paper, sparse representation (factorization) of a data matrix is first discussed. An overcomplete basis matrix is estimated by using the K−means method. We have proved ...