In {HEAD ~ the present invention}, the place of occurrence of {TAIL ~ abnormality} is estimated from the momentary positions of moving objects and the moving directions of these objects 
In { HEAD ~ the present invention } , the place of occurrence of { TAIL ~ abnormality } is estimated from the momentary positions of moving objects and the moving directions of these objects
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH