A technique for detecting an abnormal behavior by monitoring {HEAD ~ moving objects} such as human being and {TAIL ~ a car} 
A technique for detecting an abnormal behavior by monitoring { HEAD ~ moving objects } such as human being and { TAIL ~ a car }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL