Infinite Hidden Markov Models and ISA Features for Unusual-Event Detection in Video.
Iulian Pruteanu-MaliniciLawrence CarinPublished in: ICIP (5) (2007)
Keyphrases
- hidden markov models
- unusual event detection
- markov models
- feature extraction
- continuous hidden markov models
- sequence classification
- video clips
- speech recognition
- conditional random fields
- feature vectors
- gesture recognition
- viterbi algorithm
- visual speech
- video data
- sequential data
- event recognition
- audio signals
- feature space
- visual speech recognition
- video sequences
- temporal structure
- discriminative classifiers
- hidden states
- video frames
- genetic algorithm
- computational biology
- key frames
- space time