The best part of this video is when the man is able to play a games (tic-tac-toe & rock, paper, scissors) with is daughter as he uses the vision device:
(The father depicted in the video is Erik Weihenmayer, who is a professional mountaineer and motivational speaker. He's the only blind person to have climbed the "Seven Summits", the highest points on each continent.) [Image] Photo courtesy of engadget
The system uses a head-mounted video camera which takes in visual information and translates it into electric patterns on a tab placed on the tongue in such a was that 3D representation is interpreted by the brain.
[Image]
It should be noted that the BrainPort vision device is investigative and not yet available for sale.
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