A combined higher order non-convex total variation with overlapping group sparsity for Poisson noise removal.
Tarmizi AdamRaveendran ParamesranKuru RatnaveluPublished in: Comput. Appl. Math. (2022)
Keyphrases
- noise removal
- total variation
- denoising
- convex optimization
- higher order
- image denoising
- natural images
- structured sparsity
- convex optimization problems
- augmented lagrangian
- fourth order
- regularization methods
- image processing
- gaussian noise
- image restoration
- low rank
- noisy images
- sparse coding
- regularization term
- anisotropic diffusion
- image deblurring
- high order
- partial differential equations
- image enhancement
- convex relaxation
- primal dual
- group lasso
- markov random field
- diffusion equation
- nonlinear diffusion
- interior point methods
- noise reduction
- impulse noise
- inverse problems
- image patches
- edge detection
- image analysis
- edge preserving
- pairwise