Sparse Representations and Invariant Sequence-feature Extraction for Event Detection.
Alexandru Paul ConduracheAlfred MertinsPublished in: VISAPP (1) (2012)
Keyphrases
- event detection
- sparse representation
- feature extraction
- image classification
- face recognition
- dictionary learning
- dimensionality reduction
- manifold learning
- sparse coding
- video analysis
- video event detection
- compressive sensing
- activity recognition
- principal component analysis
- joint optimization
- image patches
- feature vectors
- event recognition
- object tracking
- sparse reconstruction
- scan statistic
- signal processing
- image processing
- high dimensional data
- image representation
- pattern recognition
- feature selection
- data sets
- image features
- feature space
- composite events