Low priced system allows for computer control using your eyes.
Researchers at London’s Imperial College created the system using off the shelf materials costing less than £40 in total.
The cameras constantly take pictures of the eye, working out where the pupil is pointing, and from this the researchers can use a set of calibrations to work out exactly where a person is looking on the screen.
Even more impressively, the researchers are also able to use more detailed calibrations to work out the 3D gaze of the subjects — in other words, how far into the distance they were looking. It is believed that this could allow people to control an electronic wheelchair simply by looking where they want to go or control a robotic prosthetic arm.
To demonstrate the effectiveness of the eye-tracker, the researchers got subjects to play the video game Pong. In this game, the subject used his or her eyes to move a bat to hit a ball that was bouncing around the screen — a feat that is difficult to accomplish with other read-out mechanisms, such as brain waves (EEG).
(Source: kurzweilai.net, via 8bitfuture)