jtd wrote:
On Friday 06 October 2006 22:35, Rony wrote:
If the barcode is 3 ft long, no problem. What I had in mind was a letter/a4 size page with bar codes of say, 1 inch height all arranged in multiple lines across the page and till the end of the page. A mobile device with a megapixel camera takes a snap and in the phone, an OCR converts this code into speech.
And how exctly do you think a visually handicapped person is going to position himself to take a shot?.
Yes this point had come up when I was discussing with Krish. I had suggested that the sign board is like a notice board and it has a small stand at a short pre defined distance where the user places his hand and positions the camera phone. Something like the chin holder guide where one places his face for the eye testing machine.
We need not follow conventional bar code standards. Any bar code experts on this list who can provide inputs?
That is the absolute worst think u could probably do - think standards always.
Till the foreigners come up with new standards and we follow them later. ;)
Rony please think in detail about practical problems, and the value being added to the orginal idea of signposts for visually impaired. In this case the fm thingy beats all others hands down. So unless a new idea adds value substantially to the original goal we are wasting energy.
The bar code sign board is meant to remove any power requirement thats necessary for FM and make the entire system, a passive software transfer. Even if some vandals destroy the paper, Its only a new paper that has to be replaced. The paper can be placed behind a protective transparent medium. Cost of the entire board is bare minimum.
Regards,
Rony.
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