Alternatively, the angle processing section may include a correction instructing section for instructing 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 {HEAD ~ the correction} instructing {TAIL ~ section} among the plurality of position and orientation data obtained in the data obtaining section 
instructing
Alternatively , the angle processing section may include a correction instructing section for instructing 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 { HEAD ~ the correction } instructing { TAIL ~ section } among the plurality of position and orientation data obtained in the data obtaining section
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