Re: Bar Code Scheme for Ballot

From: Arthur Keller <arthur_at_kellers_dot_org>
Date: Thu Aug 21 2003 - 18:49:24 CDT

At 4:38 PM -0700 8/21/03, Alan Dechert wrote:
>Probably, we will be encoding 7 bits with a single character. In this case,
>the possibilities for the first 7 bits are:
>
>1000000
>0100000
>0010000
>0001000
>0000100
>0000010
>0000001
>0000000

That encodes eight possibilities. That can more effectively be
encoded in 3 bits. 7 bits can encode 128 possibilities. If you use
a bit-dense continuous coding scheme with varying length codes, it
wouldn't be easy to figure out anything by eye, but easy by computer.

Arthur

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Received on Sun Aug 31 23:17:14 2003

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