Sparse coding and dictionary learning based on the MDL principle.
Ignacio RamírezGuillermo SapiroPublished in: ICASSP (2011)
Keyphrases
- mdl principle
- dictionary learning
- sparse coding
- sparse representation
- natural images
- image classification
- information theory
- linear combination
- generative model
- discriminative power
- group sparsity
- single image super resolution
- image representation
- unsupervised learning
- sparse codes
- image patches
- high dimensional
- visual words
- feature space
- object category recognition
- learning algorithm
- signal processing
- input image
- sparsity constraints
- face recognition
- data sets