Papers
	CHI 99 Conference on Human Factors in Computing Systems Pittsburgh, Pennsylvania USA 15-20 May 1999 1999 ACM 242kb PingPongPlus: Design of an Athletic-Tangible Interface for Computer-Supported Cooperative Play Hiroshi Ishii, Craig Wisneski, Julian Orbanes, Ben Chun, and Joe Paradiso* Tangible Media Group *Physics and Media Group MIT Media Laboratory 20 Ames Street, Cambridge, MA 02139 USA {ishii, wiz, joules, benchun, joep}@media.mit.edu ABSTRACT This paper introduces a novel interface for digitally-augmented cooperative play. We present the concept of the "athletic-tangible interface," a new class of interaction which uses tangible objects and full-body motion in physical spaces with digital augmentation. We detail the implementation of PingPongPlus, a "reactive ping-pong table", which features a novel sound-based ball tracking technology. The game is augmented and transformed with dynamic graphics and sound, determined by the position of impact, and the rhythm and style of play. A variety of different modes of play and initial experiences with PingPongPlus are also described.