Keyphrases
- sparse coding
- natural images
- sparse representation
- linear combination
- dictionary learning
- image classification
- unsupervised learning
- least squares
- image representation
- discriminative power
- generative model
- image patches
- high dimensional
- feature space
- single image super resolution
- person re identification
- sparse codes
- object category recognition
- object recognition
- higher order
- group sparsity
- supervised learning
- spatial pyramid matching
- multiscale
- high quality
- machine learning