A subject is imaged at a predetermined time interval by a plurality of imaging units which obtains a plurality of {HEAD ~ images} having a parallax of a subject viewed from different viewpoints by imaging the subject from {TAIL ~ different viewpoints} 
A subject is imaged at a predetermined time interval by a plurality of imaging units which obtains a plurality of { HEAD ~ images } having a parallax of a subject viewed from different viewpoints by imaging the subject from { TAIL ~ different viewpoints }
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL