{TAIL ~ The movement information} acquiring section acquires movement information showing {HEAD ~ spatial distribution} of the magnitude of a movement in the real space of an image pickup part of a detected body 
{ TAIL ~ The movement information } acquiring section acquires movement information showing { HEAD ~ spatial distribution } of the magnitude of a movement in the real space of an image pickup part of a detected body
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH 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