Single image super-resolution based on mapping-vector clustering and nonlinear pixel-reconstruction.
Xuejing KangPeiqi DuanRuyu XuPublished in: Signal Process. Image Commun. (2022)
Keyphrases
- single image super resolution
- sparse coding
- super resolution
- super resolution algorithm
- low resolution
- dictionary learning
- image patches
- clustering algorithm
- k means
- unsupervised learning
- high resolution
- compressive sensing
- high resolution images
- sparse representation
- image prior
- spatial resolution
- edge preserving
- natural images
- high quality
- image reconstruction
- linear combination
- reconstruction method
- image representation
- maximum likelihood
- data points