Translation-invariant shrinkage/thresholding of group sparse signals.
Po-Yu ChenIvan W. SelesnickPublished in: Signal Process. (2014)
Keyphrases
- translation invariant
- denoising
- wavelet shrinkage
- wavelet denoising
- image denoising
- wavelet domain
- wavelet transform
- natural images
- image processing
- shift invariant
- mathematical morphology
- shrinkage functions
- multiscale
- morphological operators
- high dimensional
- wavelet packet
- frequency domain
- edge detection
- object identification
- sparse representation
- noise removal
- texture features
- efficient implementation
- feature extraction
- nonlinear diffusion
- multiresolution
- gaussian noise
- rotation invariant
- image classification
- sparse coding
- gray level