Abstract
This research aims to construct a system that can be used for simple movement analysis and instruction in the studio and on stage to improve performance in classical ballet. For this purpose, it is necessary to verify whether it is possible to evaluate motion from 2D data of moving images. In this study, body angles of the three joints of the lower limb were calculated using Pose-cap for the ballet grand jeté movement and compared with 3D movement data. The purpose of this research was to verify the validity and accuracy of the motion evaluation method using 2D motion data. The result showed that there was no correlation between 2D and 3D motion data in the air, but there was a positive and significant correlation for body angle during landing. The speed of movement in the air is faster than when landing, and it may have been difficult for the AI to recognize the movement when the frame rate was 30Hz.
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