Jade's weblog Archive

Using sonar to help blind people 'see'

The night before last, I was thinking about my grandfather, who has gone blind in the last couple of years, and was struck with an idea: what if you took a small sonar system, hooked it up to a handheld computer and two earphones, and created a computer program that would encode the sonar signals into a meaninful map of the physical world around you?

I imagined what a huge difference this would make for the blind around the world, I imagined how it would be developed, and even how the business model would work. I named my 'company', thought through its development. I imagined the engineering and design problems that would be faced: ''what information would be important to convey and what to ignore? How long would it take to learn? etc...'' I wasn't able to sleep for about 3 hours after I went to bed.

Ah, but a simple Google search finds that I am not the first to think of such an idea. Alas.

I wonder if someone has come up with a device that reads text to blind people? Scans the world ahead and reads out any text encountered. I'm sure there is. :)

11:58 AM, 14 Sep 2004 by Jade Rubick Permalink | Comments (1)

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