Keyphrases
- image representation
- multiscale
- bag of words
- image classification
- image features
- feature representations
- image content
- representation scheme
- feature space
- object recognition
- visual words
- image retrieval
- quadtree
- sparse coding
- low level features
- image classification and retrieval
- region segmentation
- receptive fields
- hierarchical structure
- scene recognition
- sparse representation
- spatial pyramid
- higher level
- decision trees
- co occurrence