Sparse Coding via Thresholding and Local Competition in Neural Circuits.
Christopher J. RozellDon H. JohnsonRichard G. BaraniukBruno A. OlshausenPublished in: Neural Comput. (2008)
Keyphrases
- sparse coding
- sparse representation
- natural images
- dictionary learning
- linear combination
- image classification
- discriminative power
- unsupervised learning
- single image super resolution
- sparse codes
- image representation
- neural network
- visual words
- group sparsity
- image patches
- person re identification
- edge detection
- generative model
- feature space
- denoising
- image segmentation
- object category recognition
- multiscale
- signal processing
- sparsity constraints
- image processing
- high dimensional
- small number
- pattern recognition
- bag of words
- ground truth
- computer vision
- data sets
- maximum likelihood
- text mining