Artifact-Free Wavelet Denoising: Non-convex Sparse Regularization, Convex Optimization.
Yin DingIvan W. SelesnickPublished in: IEEE Signal Process. Lett. (2015)
Keyphrases
- convex optimization
- wavelet denoising
- basis pursuit
- denoising
- total variation
- artifact free
- group lasso
- inverse problems
- convex formulation
- norm minimization
- regularization term
- image denoising
- minimization problems
- augmented lagrangian
- wavelet domain
- low rank
- low rank matrix
- high quality
- convex optimization problems
- augmented lagrangian method
- convex relaxation
- interior point methods
- noisy images
- image reconstruction
- wiener filter
- alternating direction method of multipliers
- primal dual
- wavelet coefficients
- super resolution
- sparse representation
- image processing
- noise reduction
- multiresolution
- objective function
- multiscale
- operator splitting