Development of a real-time 3D measurement system for table tennis tactical elements

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K11482
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 59020:Sports sciences-related
• Research Institution: Niigata Institute of Technology
• Principal Investigator: ITO Kenichi 新潟工科大学, 工学部, 教授 (10288251)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: 卓球 / 3次元計測 / 戦術 / デプスカメラ

Outline of Final Research Achievements

The purpose of this research is to comprehensively solve technical problems in the quantification of table tennis tactical elements and to develop a practical technology for a real-time measurement and analysis system of table tennis tactical elements using a depth camera. During the research period, we developed a method for estimating the kinematic parameters of a table tennis ball (translational velocity and rotational direction and velocity in the initial phase of motion), a method for estimating the 3D position and movement of a player, and a method for automatically measuring the 3D trajectory of the ball. Furthermore, the aerodynamic coefficients of the table tennis ball necessary for estimating the kinematic parameters were calculated using Computational Fluid Dynamics (CFD). Although this research did not result in the development of a real-time measurement and analysis system, we were able to establish various practical technologies as described above.

Free Research Field

情報通信工学

Academic Significance and Societal Importance of the Research Achievements

卓球競技においては，打球コースやボールの速度・回転数，そして自分自身や相手選手の位置や動きは重要な戦術要素としてあげられ，これらの要素を定量的に計測し分析することが試合を勝利するために重要となってきている．本研究では，これら卓球の戦術要素をリアルタイム測定・分析するための各種実用化技術を構築した．リアルタイム測定・分析システムが出来上がれば，試合中の戦術分析・立案だけでなく，分析結果をトレーニング内容に反映させ，選手の能力向上に資することができるようになる，また，卓球競技の魅力を伝える情報をテレビ中継などに取り入れ，卓球競技の普及発展につなげることが大いに期待できる．