Learning a tree-structured dictionary for efficient image representation with adaptive sparse coding.
Jeremy Aghaei MazaheriChristine GuillemotClaude LabitPublished in: ICASSP (2013)
Keyphrases
- image representation
- sparse coding
- sparse representation
- dictionary learning
- image classification
- single image super resolution
- discriminative dictionary
- unsupervised learning
- multiscale
- feature representations
- object recognition
- sparse codes
- natural images
- bag of words
- visual words
- object category recognition
- discriminative power
- visual recognition
- linear combination
- image content
- machine learning
- feature space
- image features
- computer vision
- compressive sensing
- active learning
- prior knowledge
- reinforcement learning
- learning algorithm
- image retrieval
- image patches
- bag of visual words