Sparse Coding with a Coupled Dictionary Learning Approach for Textual Image Super-resolution.
Rim WalhaFadoua DriraFrank LebourgeoisChristophe GarciaAdel M. AlimiPublished in: ICPR (2014)
Keyphrases
- dictionary learning
- image super resolution
- sparse coding
- sparse representation
- natural images
- image classification
- group sparsity
- generative model
- unsupervised learning
- sparse codes
- linear combination
- image representation
- object category recognition
- image patches
- visual words
- feature space
- face recognition
- higher order