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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