160 search results - page 1 / 32 » Sparse decompositions in |
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
In this paper an extension of the sparse decomposition problem is considered and an algorithm for solving it is presented. In this extension, it is known that one of the shifted v...
IJON
2002
13 years 5 months ago
2002
It was discovered recently that sparse decomposition by signal dictionaries results in dramatic improvement of the qualities of blind source separation. We exploit sparse decompos...
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
In this paper, a new class of audio representations is introduced, together with a corresponding fast decomposition algorithm. The main feature of these representations is that th...
ICA
2007
Springer
13 years 11 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...
ICASSP
2009
IEEE
14 years 2 days ago
2009
IEEE
In this paper, we consider sparse decomposition (SD) of twodimensional (2D) signals on overcomplete dictionaries with separable atoms. Although, this problem can be solved by conv...