Wearable statues game: a real-world multiplayer game using automatic judgment with accelerometers

In sports, automatic judgments made by electronic devices such as sensors are more accurate than those made by humans. However, automatic judgments are not always satisfactory to players and audiences. In sports that involve ambiguous judging criteria based on the subjectivity of human judges, rigorous automatic judgments may decrease the satisfaction of players and audiences. This decrease hinders the installation of automatic judging, even though computerized officiating is more effective than human judgment in several ways. In this study, we aim to construct an automatic judgment system that satisfies both players and audiences. To investigate the factors that affect the conviction of players and audiences, we implemented an automatic judgment system used for the Japanese statues game. Our system recognizes human motion using an acceleration sensor and automatically judges whether the players are moving. We conducted a user study to compare two threshold patterns for the recognition of the motion.