Loitering detection based on discrete curvature entropy

In order to solve the intelligent monitoring problem,a novel method is introduced for loitering detection.Moving object is detected and tracked using tracking algorithm.This mothod gets the trajectory of moving object,smoothes the trajectory using curve fitting,and gets the discrete curvature and the entropy.Loitering detection is accomplished by judging threshold value.The method has no database for samples.Experiments demonstrate the efficiency of the proposed method.