Currently, robots are controlled using a joystick or other traditional input device. However, a novel system developed by Tokyo University engineer Tsuyoshi Horo, allows operators to issue commands to robots using simple hand and body gestures. And it is not limited for controling robots; Horo has also implemented several computer user interface prototypes using the same basic system. The system uses a circular array of cameras to detect human movements in the room, then convey them to a robot as directional commands. It produces a real time 3-D volumetric model of people or objects inside the circle of cameras, allowing for precise tracking of movements. Check the videos above and below.