Nonlocal Gradient Sparsity Regularization for Image Restoration.
Hangfan LiuRuiqin XiongXinfeng ZhangYongbing ZhangSiwei MaWen GaoPublished in: IEEE Trans. Circuits Syst. Video Technol. (2017)
Keyphrases
- image restoration
- sparsity regularization
- regularization parameter
- edge preserving
- total variation
- image processing
- image prior
- super resolution
- sparse coding
- space variant
- image deblurring
- markov random field
- point spread function
- motion blur
- edge detection
- impulse response
- iterative image restoration
- degraded images
- feature selection
- restored image
- modified hopfield neural network
- natural images
- low level vision tasks
- blurred images
- image classification
- sparse representation