SGCRSR: Sequential gradient constrained regression for single image super-resolution.
Honggang ChenXiaohai HeLinbo QingQizhi TengChao RenPublished in: Signal Process. Image Commun. (2018)
Keyphrases
- single image super resolution
- sparse coding
- super resolution
- dictionary learning
- image patches
- low resolution
- image prior
- model selection
- edge detection
- compressive sensing
- sparse representation
- image classification
- natural images
- high resolution images
- high resolution
- unsupervised learning
- image processing
- linear combination
- image reconstruction
- least squares
- small number