Image super-resolution using sparse coding over redundant dictionary based on effective image representations.
Muhammad SajjadIrfan MehmoodSung Wook BaikPublished in: J. Vis. Commun. Image Represent. (2015)
Keyphrases
- sparse coding
- image representation
- image super resolution
- dictionary learning
- sparse representation
- image classification
- visual words
- natural images
- multiscale
- bag of words
- image features
- spatial pyramid matching
- image retrieval
- object recognition
- unsupervised learning
- linear combination
- image patches
- generative model
- low resolution
- image registration
- feature space
- ground truth
- super resolution
- markov random field
- class specific
- pattern recognition
- high quality