Motion tracking method for the CAVE/sup TM/ system

The long-term goals of our research are the creation of a technique for tracking human motion in the CAVE/sup TM/ system and the applications that use this technique. This paper describes a new way of optically measuring three-dimensional positions in real-time for the purpose of human motion tracking in the CAVE/sup TM/ system. Three problems with the optical method, marker tracking in dark places, occlusion, and mistaken marker identification as a result of two markers overlapping in the camera's field of view, are addressed. The solutions to these problems use the properties of the human body, and we verify the effectiveness of this method.