21 search results - page 3 / 5 » Super-Resolution With Sparse Mixing Estimators |
ICASSP
2011
IEEE
12 years 11 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 ...
ICASSP
2009
IEEE
14 years 2 months ago
2009
IEEE
This paper presents a new sparse representation for acoustic signals which is based on a mixing model defined in the complex-spectrum domain (where additivity holds), and allows ...
ICA
2007
Springer
14 years 1 months ago
2007
Springer
In underdetermined blind source separation problems, it is common practice to exploit the underlying sparsity of the sources for demixing. In this work, we propose two sparse decom...
AAAI
2011
12 years 7 months ago
2011
We consider the problem of modeling network interactions and identifying latent groups of network nodes. This problem is challenging due to the facts i) that the network nodes are...
IDA
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. We apply sparse, fast and flexible adaptive lapped orthogonal transforms to underdetermined audio source separation using the time-frequency masking framework. This norm...