Alternatively, the angle processing section may include a correction instructing {HEAD ~ section} for instructing {TAIL ~ a correction} of desired angle data among the plurality of angle data; and a data correcting section for correcting, according to an instruction of the correction instructing section, position and orientation data corresponding to the desired angle data instructed in the correction instructing section among the plurality of position and orientation data obtained in the data obtaining section 
Alternatively , the angle processing section may include a correction instructing { HEAD ~ section } for instructing { TAIL ~ a correction } of desired angle data among the plurality of angle data ; and a data correcting section for correcting , according to an instruction of the correction instructing section , position and orientation data corresponding to the desired angle data instructed in the correction instructing section among the plurality of position and orientation data obtained in the data obtaining section
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