Multiple-prespecified-dictionary sparse representation for compressive sensing image reconstruction with nonconvex regularization.
Yunyi LiFei DaiXiefeng ChengLi XuGuan GuiPublished in: J. Frankl. Inst. (2019)
Keyphrases
- sparse representation
- compressive sensing
- image reconstruction
- signal reconstruction
- compressed sensing
- random projections
- learned dictionary
- dictionary learning
- inverse problems
- structured sparsity
- sparse coding
- face recognition
- image classification
- reconstructed image
- dimensionality reduction
- regularized least squares
- image representation
- image patches
- group sparsity
- super resolution
- signal processing
- high dimensional data
- test images
- radon transform
- data sets
- image data
- denoising
- data analysis
- orthogonal matching pursuit
- pattern recognition
- image processing