Beyond particle flow: Bag of Trajectory Graphs for dense crowd event recognition.

Yanhao Zhang Lei Qin Hongxun Yao Pengfei Xu Qingming Huang

Published in: ICIP (2013)

Keyphrases

event recognition
event detection
video analysis
video event detection
multi camera
video surveillance
bag of words
event models
activity recognition
flow field
social force model
machine learning
video processing
active learning
object detection