255 search results - page 11 / 51 » Sampling Sparse Signals on the Sphere: Algorithms and Applic... |
CORR
2010
Springer
14 years 9 months ago
2010
Springer
Signal modeling lies at the core of numerous signal and image processing applications. A recent approach that has drawn considerable attention is sparse representation modeling, in...
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
The main contribution presented here is an adaptive/unsupervised iterative thresholding algorithm for sparse representation of signals which can be modeled as the sum of two compo...
ICASSP
2010
IEEE
14 years 9 months ago
2010
IEEE
We propose a novel algorithm for sparse system identification in the frequency domain. Key to our result is the observation that the Fourier transform of the sparse impulse respo...
ICASSP
2010
IEEE
14 years 9 months ago
2010
IEEE
In this paper we show that, surprisingly, it is possible to recover sparse signals from nonlinearly distorted measurements, even if the nonlinearity is unknown. Assuming just that...
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
A dependent hierarchical beta process (dHBP) is developed as a prior for data that may be represented in terms of a sparse set of latent features (dictionary elements), with covar...