Keyphrases
- image encryption
- sparse coding
- compressive sensing
- sparse representation
- image representation
- dictionary learning
- random projections
- group sparsity
- image classification
- single image super resolution
- face recognition
- natural images
- image patches
- signal processing
- high dimensional data
- wireless communication
- dimensionality reduction
- multiscale
- structured sparsity
- generative model
- image retrieval
- pattern recognition
- sparse approximation
- frequency domain
- bag of words
- data sets
- computer vision