Histograms of Optical Flow Orientation and Magnitude to Detect Anomalous Events in Videos.
Rensso Victor Hugo Mora ColqueCarlos Antônio Caetano Jr.William Robson SchwartzPublished in: SIBGRAPI (2015)
Keyphrases
- optical flow
- video event
- event recognition
- moving camera
- human activities
- normal behavior
- detecting anomalous
- video clips
- temporal relationships
- event detection
- anomaly detection
- motion features
- video sequences
- spatio temporal patterns
- sports video
- image sequences
- d scene
- flow field
- moving objects
- motion estimation
- video dataset
- detection algorithm
- motion field
- independently moving objects
- video analysis
- video data
- surveillance videos
- detection method
- orientation histogram
- image brightness
- spatio temporal
- computer vision
- unusual events
- intrusion detection system
- intrusion detection
- optical flow estimation
- motion model
- temporal structure
- feature tracking
- temporal relations
- dynamic textures
- motion parameters
- video frames
- dense optical flow
- temporal information