A linear approach for sparse coding by a two-layer neural network.
Alessandro MontaltoGiovanni TessitoreRoberto PrevetePublished in: CoRR (2015)
Keyphrases
- sparse coding
- neural network
- dictionary learning
- sparse representation
- natural images
- image classification
- sparse approximation
- linear combination
- multi layer
- image representation
- object category recognition
- unsupervised learning
- generative model
- single image super resolution
- sparse codes
- image patches
- discriminative power
- high dimensional
- feature space
- person re identification
- knn
- pattern recognition
- test images
- probabilistic model
- object categories
- visual words
- input image
- principal component analysis
- text classification