Sparse Representation with Global and Nonlocal Self-similarity Prior for Single Image Super-Resolution.
Weiguo GongXi ChenJinming LiYongliang TangWeihong LiPublished in: ISNN (2) (2017)
Keyphrases
- single image super resolution
- sparse representation
- sparse coding
- dictionary learning
- image patches
- natural images
- image denoising
- super resolution
- face recognition
- compressive sensing
- image prior
- image classification
- image super resolution
- prior model
- prior knowledge
- random projections
- signal processing
- low resolution
- prior information
- high dimensional data
- image restoration
- image representation
- test images
- single image
- unsupervised learning
- co occurrence
- denoising
- object recognition
- maximum a posteriori
- noisy images
- posterior distribution
- edge preserving
- markov random field
- dimensionality reduction
- input image
- high resolution