Group sparsity residual constraint for image denoising with external nonlocal self-similarity prior.
Zhiyuan ZhaXinggan ZhangQiong WangYechao BaiYang ChenLan TangXin LiuPublished in: Neurocomputing (2018)
Keyphrases
- image denoising
- group sparsity
- natural images
- sparse coding
- denoising
- noisy images
- structured sparsity
- total variation
- higher order
- nonlocal means
- partial differential equations
- object recognition
- multiscale
- image patches
- input image
- low rank
- denoising methods
- sparse representation
- prior model
- maximum a posteriori
- signal processing
- image processing
- linear program
- denoising algorithm
- probabilistic model
- computational complexity