Keyphrases
- generative model
- activity analysis
- video processing
- dynamic textures
- video surveillance
- video analysis
- human activities
- visual surveillance
- probabilistic model
- bayesian framework
- video database
- activity recognition
- mixture model
- motion patterns
- video data
- em algorithm
- video segmentation
- space time
- conditional random fields
- prior knowledge
- video sequences
- object categories
- multimedia
- video retrieval
- video content
- video clips
- video frames
- event detection
- semi supervised
- spatio temporal
- image processing
- computer vision
- dynamic scenes
- machine learning
- image sequences