Toshiba's Gesture-Based User Interface
A 'Minority Report' styled gesture-controlled interface meant for digital signage.
Toshiba Information Systems has developed a gesture-controlled user interface called AirSwing, which initiates the gesturing act using a standard webcam.
Slashgear has more on AirSwing's working
The UI puts a transparent image of yourself onto your screen, and from there it will display a menu and some content that you can manipulate. From there, you’ll be able to move your transparent self around the screen, where you’ll be able to interact with what’s there just by simple gestures, like flicking through pictures in a photo gallery.