The researchers at Waterloo Labs demonstrate their eyeMario system that allows you to play any NES video game using eye movements.
From WaterlooLabs
The goal of the project is to control a Nintendo Entertainment System (NES) using solely eye movements. Eye positions are read using a technique known as electrooculography (EOG) and electrodes placed on the face around the eyes interface (via a National Instruments Singleboard RIO) with the NES standard protocols to simulate a game controller.
The electrodes detect very small electrical signals that occur inside of the eye. They are placed around the eye in a diamond pattern to detect its current position using electrooculography. The voltage differences between the horizontal and vertical pairs are taken to determine eye position.
Waterloo Labs warn not to try this at home for there is a real danger of severe injury and even death through electrical shocks if you do not know what you are doing. So, I guess we may not see this technology any time soon on digital cameras? [Though, I believe, we do have some kind of “eye-controlled” autofocus.]
Read more details about how they built the system.
source PopSci
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