Image super-resolution via sparse representation over multiple learned dictionaries based on edge sharpness.
Faezeh YeganliMahmoud NazzalMurat UnalHüseyin ÖzkaramanliPublished in: Signal Image Video Process. (2016)
Keyphrases
- sparse representation
- image super resolution
- dictionary learning
- sparse coding
- image patches
- face recognition
- class specific
- image classification
- sparse codes
- sparse approximations
- image representation
- high dimensional data
- signal processing
- dimensionality reduction
- compressive sensing
- edge preserving
- pattern recognition
- test images
- training data
- decision trees
- visual words