Keyphrases
- sparse coding
- sparse representation
- natural images
- dictionary learning
- image classification
- generative model
- linear combination
- discriminative power
- unsupervised learning
- image representation
- feature space
- single image super resolution
- person re identification
- image patches
- sparse codes
- visual words
- object category recognition
- deep belief networks
- supervised learning
- high dimensional
- object recognition
- multiscale
- feature extraction
- learning algorithm