Connections Between ICA and Sparse Coding Revisited.
Susana Hornillo-MelladoRubén Martín-ClementeJuan Manuel Górriz SáezPublished in: IWANN (2005)
Keyphrases
- sparse coding
- independent component analysis
- natural images
- sparse representation
- natural image statistics
- dictionary learning
- linear combination
- image classification
- discriminative power
- unsupervised learning
- image representation
- generative model
- image patches
- single image super resolution
- signal processing
- feature space
- face recognition
- feature extraction
- sparse codes
- group sparsity
- visual words
- principal component analysis
- object category recognition
- person re identification
- prior knowledge
- high dimensional
- multiscale
- alternating optimization
- higher order
- input image
- ground truth