Papers
	CHI 2001 Conference on Human Factors in Computing Systems Seattle, Washington, USA March 31 - April 5 2001 © 2001 ACM 565kb Sensetable: A Wireless Object Tracking Platform for Tangible User Interfaces James Patten, Hiroshi Ishii and Gian Pangaro Tangible Media Group MIT Media Laboratory 20 Ames Street, Cambridge, MA 02139 USA {jpatten, ishii, pangaro}@media.mit.edu Jim Hines System Dynamics Group MIT Sloan School of Management 50 Memorial Drive, Cambridge, MA 02139 jhines@mit.edu ABSTRACT In this paper we present a system that electromagnetically tracks the positions and orientations of multiple wireless objects on a tabletop display surface. The system offers two types of improvements over existing tracking approaches such as computer vision. First, the system tracks objects quickly and accurately without susceptibility to occlusion or changes in lighting conditions. Second, the tracked objects have state that can be modified by attaching physical dials and modifiers. The system can detect these changes in real-time. We present several new interaction techniques developed in the context of this system. Finally, we present two applications of the system: chemistry and system dynamics simulation.