Keyphrases
- dictionary learning
- sparse representation
- sparse coding
- image super resolution
- high dimensional data
- dimensionality reduction
- low dimensional
- principal component analysis
- feature space
- group sparsity
- pattern recognition
- face recognition
- object category recognition
- image classification
- higher order
- high dimensional
- pairwise
- feature extraction
- image representation
- linear combination
- prior knowledge
- feature vectors
- data sets
- dictionary learning for sparse