Semantic feature extraction based on subspace learning with temporal constraints for acoustic event recognition.
Qiuying ShiJiqing HanPublished in: Digit. Signal Process. (2021)
Keyphrases
- temporal constraints
- subspace learning
- event recognition
- feature extraction
- dimensionality reduction
- manifold learning
- principal component analysis
- temporal reasoning
- face recognition
- event detection
- data representation
- video analysis
- multi camera
- activity recognition
- temporal information
- video surveillance
- sparse representation
- low dimensional
- pattern recognition
- dimension reduction
- semi supervised
- high dimensional data
- image classification
- feature space
- semantic information
- sparse coding
- high dimensional
- preprocessing
- high level
- object tracking
- image processing