Development of a gaze-and-touch algorithm for a tabletop Hyakunin-Isshu game with a computer opponent

We developed and demonstrated the effectiveness of Hyakunin-Eyesshu, the world´s first tabletop Hyakunin-Isshu game against a computer opponent that utilizes action prediction based on gaze and hand-motion detection. In this study, we also developed the gaze-and-touch algorithm, which can realize just-found and even-match timings for use in the computer opponent´s play. The just-found timing is the timing for which the computer opponent can obtain a correct card concurrently with the reaction time of the player just after the player has found the card. The even-match timing is the timing for which the computer opponent obtains the card at almost the same time as the player by predicting the player´s hand reach. Finally, the authors performed an experimental evaluation of the proposed algorithm and determined that various types of play can be realized through a combination of these timings.