Bilevel optimization of block compressive sensing with perceptually nonlocal similarity.
Yu ZhouSam KwongHainan GuoWei GaoXu WangPublished in: Inf. Sci. (2016)
Keyphrases
- compressive sensing
- image recovery
- sparse representation
- similarity measure
- random projections
- optimization problems
- image representation
- orthogonal matching pursuit
- structured sparsity
- compressive sampling
- neural network
- distributed source coding
- signal processing
- denoising
- image denoising
- convex optimization problems
- linear combination
- unsupervised learning