Unsupervised learning of a steerable basis for invariant image representations.
Matthias BethgeSebastian GerwinnJakob H. MackePublished in: Human Vision and Electronic Imaging (2007)
Keyphrases
- image representation
- unsupervised learning
- object recognition
- image classification
- multiscale
- bag of words
- image content
- sparse coding
- supervised learning
- receptive fields
- image features
- feature representations
- visual words
- image retrieval
- scene classification
- feature space
- representation scheme
- bag of features
- hierarchical structure
- invariant features
- linear combination
- semi supervised
- image processing
- region segmentation
- spatial pyramid
- low level features
- cbir systems
- model selection
- scene recognition
- visual recognition tasks