Keyphrases
- sparse coding
- dictionary learning
- natural images
- sparse representation
- image classification
- linear combination
- generative model
- discriminative power
- unsupervised learning
- group sparsity
- single image super resolution
- image representation
- person re identification
- sparse codes
- distance measure
- image patches
- high dimensional
- feature space
- multiscale
- model selection
- higher order
- ground truth
- data sets
- motion estimation
- spatial pyramid matching
- object recognition
- text classification
- image features
- object category recognition