Pioneer has presented a new 3D user interface technology which allows users to input text or draw without using a keyboard, mouse or even touching the screen.
The prototype consists of a 15-inch LCD display, a PC, an array of 3D lens (approx. 15-inch), a space sensor and a PC application which includes 3D image processing. User is able to draw a picture by hand in the midair onto a projected virtual screen, as illustrated in the picture below. The space sensors are set around the area where the image is formed. The system sends the location data of the user's finger to the PC via the space sensors. Then, the image is processed in real time, and it is drawn the onto the real 15-inch screen: