Online Detection of Abnormal Events in Video Streams
Figure 7
Detection results of the plaza scene. (a) The detection result of one normal frame. (b) The detection result of one abnormal panic frame. (c) ROC curve of different features of the plaza scene results via one-class SVM. All the training samples are learned together offline. The biggest AUC value is 0.9649. (d) ROC curve of different features results via Strategy 1 online one-class SVM. The biggest AUC value is 0.9632.
