Preliminary investigation of Real-time Feedback System from the Third-person Perspective Utilizing Augmented Reality（AR） on Skiing

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  • スキー滑走動作における拡張現実技術を用いた第三者視点からのリアルタイムフィードバックシステムの有効性の予備的検討
  • スキー カッソウ ドウサ ニ オケル カクチョウ ゲンジツ ギジュツ オ モチイタ ダイサンシャ シテン カラ ノ リアルタイムフィードバック システム ノ ユウコウセイ ノ ヨビテキ ケントウ

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There are many situations that the difference between imagery（subjective） and actual（objective） movements occurs in skiing. In traditionally utilized feedback method with video, it is impossible to get real time visual feedback. In the present study, we developed the system for real-time visual feedback during skiing, and evaluated the availability of the system. The movie captured by a video-operator who followed a subject was projected in online through the smartglass that the subjects wore. Sixteen skiers and snowboarders with various skill levels tried this system.We interviewed subjects immediately after the trial.Their impression was that getting real-time visual feedback of their own motion utilizing the present system, which helped them modify their performance in middle and high level subjects. However, beginner subjects could not afford to use the feedback information. Since the present system had unavoidable time-delay of 186 ms, it was suggested that it is not suitable for learning short turn. Therefore, the present examination suggested that this real-time visual feedback system can be effective in learning long turn for middle and high level skier who have clear goal images of their performance.

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