Sparsity-Inducing Nonconvex Nonseparable Regularization for Convex Image Processing.
Alessandro LanzaSerena MorigiIvan W. SelesnickFiorella SgallariPublished in: SIAM J. Imaging Sci. (2019)
Keyphrases
- sparsity inducing
- image processing
- structured sparsity
- convex optimization
- convex optimization problems
- variable selection
- sparse learning
- group lasso
- sparse regression
- total variation
- optimization problems
- signal processing
- piecewise linear
- low rank
- objective function
- statistical learning
- cross validation
- image restoration
- convex relaxation
- regularization methods
- efficient optimization
- elastic net
- image segmentation
- compressive sensing
- sparse representation
- wavelet transform
- multiscale
- multi task
- interior point methods
- estimation problems
- partial differential equations
- image denoising
- model selection
- denoising
- high dimensional
- feature extraction
- accelerated proximal gradient