A Proposal on Automatic Analysis Method of Tennis Play Using Movies of Tennis Match

Abstract

In recent years, in sporting event such as baseball and tennis, quantifying various data such as the movement of the ball and the players is utilized to improve the players’ skill and the tactics of the match. Though there exists equipment that can record various kinds of data of sports automatically, they are expensive in general and not everyone can use them easily. In this study, we focus on tennis and propose a method to record the players’ movements, the trajectories of the ball, and the positions of the bounds and strokes from tennis videos taken by commonly-marketed digital video camera automatically, and to provide players with useful information comprehensibly. The inter-frame difference method is used to extract the ball and a particle filter is used to extract and track the player. The experimental results show that the proposed method is sufficiently practicable for analyzing tennis matches.