Image feature extraction by sparse coding and independent component analysis.
Aapo HyvärinenErkki OjaPatrik O. HoyerJarmo HurriPublished in: ICPR (1998)
Keyphrases
- independent component analysis
- image feature extraction
- sparse coding
- feature extraction
- dictionary learning
- sparse representation
- natural images
- image classification
- principal component analysis
- signal processing
- image processing
- linear combination
- unsupervised learning
- image representation
- feature space
- generative model
- image patches
- natural image statistics
- pattern recognition
- high dimensional
- visual words
- object recognition
- corner detection
- visual features
- higher order
- multiscale