Joint group dictionary-based structural sparse representation for image restoration.
Wei YuanHan LiuLili LiangPublished in: Digit. Signal Process. (2023)
Keyphrases
- sparse representation
- image restoration
- blind image restoration
- joint optimization
- dictionary learning
- sparse coding
- total variation
- edge preserving
- face recognition
- image classification
- compressive sensing
- image processing
- image patches
- markov random field
- regularized least squares
- random projections
- regularization parameter
- gaussian noise
- piecewise smooth
- image representation
- point spread function
- blurred images
- super resolution
- degraded images
- signal processing
- test images
- motion blur
- image deblurring
- high dimensional data
- linear combination
- neural network
- dimensionality reduction
- convex optimization