GestureXtreme

For more than 20 years, GestureTek has been developing state-of-the-art interactive entertainment systems, edutainment game software and other interactive media solutions in a wide range of virtual environments.

GestureXtreme(GX®) is a virtual gaming system that uses patented video gesture control software and immersive technology to give users an exhilarating immersive experience. Your real-time video image is transported into exciting computer-generated landscapes, where you see yourself onscreen interacting with onscreen characters and objects – without having to wear, hold or touch anything. With your whole body acting as the input device, no head mounted unit, remote or other special gear is needed.
(http://www.gesturetek.com/gesturextreme/introduction.php)