144 search results - page 1 / 29 » Sparsity in time-frequency representations |
TASLP
2010
13 years 9 months ago
2010
Abstract—We present an algorithm for removing timefrequency components, found by a standard Gabor transform, of a “real-world” sound while causing no audible difference to th...
ICCV
2011
IEEE
12 years 11 months ago
2011
IEEE
As a recently proposed technique, sparse representation based classification (SRC) has been widely used for face recognition (FR). SRC first codes a testing sample as a sparse lin...
ICIP
1994
IEEE
15 years 8 days 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 ...
ICMCS
2006
IEEE
14 years 4 months ago
2006
IEEE
In this paper, we address the problem of separating unknown multicomponent signals from their instantaneous mixtures. Using linear time-frequency (TF) representation of the mixtur...
ICCV
2011
IEEE
12 years 11 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 ...