Keyphrases
- image representation
- image retrieval
- multiscale
- object recognition
- image classification
- bag of words
- image content
- representation scheme
- feature space
- quadtree
- sparse coding
- bag of features
- image classification and retrieval
- image features
- visual words
- scene classification
- scene recognition
- feature extraction
- sparse representation
- image database
- low level features
- shape descriptors
- receptive fields
- action recognition
- low level
- machine learning
- image matching
- feature descriptors
- visual content