Spectral patch based sparse coding for acoustic event detection.
Xugang LuYu TsaoPeng ShenChiori HoriPublished in: ISCSLP (2014)
Keyphrases
- event detection
- sparse coding
- image patches
- natural images
- dictionary learning
- sparse representation
- image classification
- linear combination
- unsupervised learning
- image representation
- video surveillance
- activity recognition
- generative model
- feature vectors
- low resolution
- test images
- feature space
- reinforcement learning
- clustering algorithm
- machine learning
- bag of words
- higher order
- high dimensional
- moving objects
- visual words
- feature selection