Block dictionary learning with l0 regularization and its application in image denoising.
Wei XueWensheng ZhangPublished in: ICNC-FSKD (2017)
Keyphrases
- image denoising
- dictionary learning
- sparse coding
- natural images
- total variation regularization
- bilateral filtering
- denoising
- sparse representation
- total variation
- noisy images
- augmented lagrangian
- image processing
- partial differential equations
- wavelet coefficients
- regularization methods
- regularization term
- blind deconvolution
- image deblurring
- image prior
- signal processing
- higher order
- multiscale
- inverse problems
- high dimensional data
- image restoration
- linear combination
- nonlinear diffusion
- multiresolution
- computational complexity