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