wherein said {TAIL ~ abnormal behavior detector} is characterized in that the said abnormality origin detection means, after assuming that the behavior of moving objects is governed by both a behavior algorithm which is a judgment procedure concerning the determination of the behavior of {HEAD ~ the moving objects}, and control parameters which are the parameters functioning as the criteria for judgment, estimates said control parameters from said positions and said moving directions and then estimates from said control parameters the object that has caused the abnormal behavior, and 
wherein said { TAIL ~ abnormal behavior detector } is characterized in that the said abnormality origin detection means , after assuming that the behavior of moving objects is governed by both a behavior algorithm which is a judgment procedure concerning the determination of the behavior of { HEAD ~ the moving objects } , and control parameters which are the parameters functioning as the criteria for judgment , estimates said control parameters from said positions and said moving directions and then estimates from said control parameters the object that has caused the abnormal behavior , and
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH