Single-image super-resolution in RGB space via group sparse representation.
Ming ChengCheng WangJonathan LiPublished in: IET Image Process. (2015)
Keyphrases
- sparse representation
- single image super resolution
- sparse coding
- dictionary learning
- image patches
- image classification
- compressive sensing
- image representation
- super resolution
- face recognition
- low resolution
- signal processing
- random projections
- low dimensional
- dimensionality reduction
- high dimensional
- image super resolution
- natural images
- high dimensional data
- unsupervised learning
- test images
- high resolution
- generative model
- small number
- feature extraction
- machine learning