Image restoration approach using a joint sparse representation in 3D-transform domain.
Shujun LiuGuoqing WuHongqing LiuXinzheng ZhangPublished in: Digit. Signal Process. (2017)
Keyphrases
- sparse representation
- transform domain
- image restoration
- blind image restoration
- joint optimization
- spatial domain
- sparse coding
- total variation
- super resolution
- image classification
- reconstruction error
- markov random field
- signal processing
- compressive sensing
- random projections
- image processing
- image patches
- regularized least squares
- compressed sensing
- face recognition
- macroblock
- regularization parameter
- frequency domain
- blurred images
- dimensionality reduction
- high dimensional data
- image representation
- gaussian noise
- machine learning
- feature selection