Highly overcomplete sparse coding.
Bruno A. OlshausenPublished in: Human Vision and Electronic Imaging (2013)
Keyphrases
- sparse coding
- sparse representation
- natural images
- dictionary learning
- linear combination
- image classification
- unsupervised learning
- image representation
- generative model
- discriminative power
- person re identification
- group sparsity
- single image super resolution
- image patches
- sparse codes
- visual words
- feature space
- object category recognition
- alternating optimization
- higher order
- feature extraction
- signal processing
- input image
- image features
- computer vision