Properties of basis functions generated by shift invariant sparse representations of natural images.
Wakako HashimotoKoji KurataPublished in: Biol. Cybern. (2000)
Keyphrases
- sparse coding
- natural images
- basis functions
- linear combination
- sparse representation
- image patches
- multiscale
- higher order
- object recognition
- image denoising
- input image
- test images
- denoising
- wavelet domain
- learning algorithm
- unsupervised learning
- signal processing
- image classification
- dimensionality reduction
- small number
- feature vectors
- reinforcement learning
- feature extraction