Towards a more efficient sparse coding based audio-word feature extraction system.
Chin-Chia Michael YehYi-Hsuan YangPublished in: APSIPA (2013)
Keyphrases
- sparse coding
- image classification
- feature extraction
- natural images
- dictionary learning
- sparse representation
- linear combination
- discriminative power
- feature space
- unsupervised learning
- image representation
- generative model
- co occurrence
- feature selection
- sparse codes
- visual words
- image processing
- signal processing
- higher order
- image patches
- multiscale
- person re identification
- machine learning
- dimensionality reduction
- prior knowledge
- pattern recognition
- object category recognition