Proposal of a discrimination method for tennis swing forms based on motion capture analysis

Abstract

A method to classify similar tennis swing forms is necessary to evaluate an accurate hitting feel, which is caused by the collision of the tennis strings and the ball. In this study, we proposed a discrimination method for tennis swing forms based on a motion capture system, which consists of six cameras. We measured 3 different types of swinging 5 times each. By the motion analysis, we defined characteristic parameters, that vary according to the differences between the classified tennis swing forms: flat type and spin type. After that, we applied the multiple regression analysis to the obtained characteristics, and created a discrimination prediction system of the swing types. Furthermore, we tried to propose a simplified measuring method using IMU sensors. As a result, it could be assumed that there is a correlation between motion capture analysis and IMU．