Smooth sparse coding via marginal regression for learning sparse representations.
Krishnakumar BalasubramanianKai YuGuy LebanonPublished in: Artif. Intell. (2016)
Keyphrases
- dictionary learning
- sparse coding
- sparse representation
- single image super resolution
- group sparsity
- unsupervised learning
- natural images
- image classification
- image representation
- image patches
- learning algorithm
- sparse learning
- signal processing
- sparse codes
- super resolution
- prior knowledge
- dimensionality reduction
- generative model
- visual words
- linear combination
- pattern recognition
- subspace learning
- machine learning
- multiscale
- model selection