Are You Imitating Me? Unsupervised Sparse Modeling for Group Activity Analysis from a Single Video
Zhongwei TangAlexey CastrodadMariano TepperGuillermo SapiroPublished in: CoRR (2012)
Keyphrases
- activity analysis
- video processing
- video analysis
- video surveillance
- human activities
- group activities
- visual surveillance
- video data
- activity recognition
- video database
- unsupervised learning
- real time
- space time
- multimedia
- video content
- video streams
- semi supervised
- spatial and temporal
- video sequences
- motion patterns
- temporal information
- moving camera
- dynamic textures
- group members
- visual features