Low-cost motion tracking system using 3 wiimotes. In the video you see an action game demonstrating one application of this tracking system. The tracking system computes the exact 3D-position of the player (relative to the cameras) and maps it to the position of the game "tool", for example a racket. To be detected by the cameras, the player must stay in the field of view of the two wiimote-cameras (fixed on a tripod standing in front of the player, near the projection wall).