An MDL Framework for Sparse Coding and Dictionary Learning.
Ignacio RamírezGuillermo SapiroPublished in: IEEE Trans. Signal Process. (2012)
Keyphrases
- dictionary learning
- sparse coding
- sparse representation
- natural images
- linear combination
- image classification
- unsupervised learning
- discriminative power
- symmetric positive definite matrices
- sparse codes
- sparsity constraints
- generative model
- group sparsity
- single image super resolution
- object category recognition
- image representation
- image patches
- probabilistic model
- sparse representation based classification
- model selection
- maximum likelihood
- signal processing
- semi supervised
- face recognition
- computer vision