Sparse denoising of audio by greedy time-frequency shrinkage.
Gautam BhattacharyaPhilippe DepallePublished in: ICASSP (2014)
Keyphrases
- denoising
- basis pursuit
- wavelet packet
- frequency domain
- image denoising
- signal processing
- soft thresholding
- wavelet domain
- wavelet shrinkage
- natural images
- image processing
- noisy images
- total variation
- greedy algorithm
- denoising algorithm
- multimedia
- gaussian noise
- compressed sensing
- noise removal
- sparse coding
- sparse representation
- compressive sensing
- wavelet transform
- visual information
- translation invariant
- audio signal
- sparse data
- wavelet denoising
- audio visual
- feature selection
- fourier transform
- orthogonal matching pursuit
- greedy heuristic
- search algorithm
- audio signals
- filter bank
- shift invariant
- denoising methods
- spatial domain
- audio features
- nonlinear diffusion
- wavelet decomposition
- subband
- signal analysis
- image quality
- search space
- face recognition
- hard thresholding