[OT] Shredded paper reassembled

[Allen Taylor]

On Mon, May 29, 2006 at 05:26:14PM +0300, Peter wrote:
> 
> Afaik reassebling shredded documents is one of the things more serious 
> spy outfits would do, according to books. Ashes followed by mortar and 
> pestle and mixing into a large heap looks good.
> 
> As to automatic reassembly, there could be something to it. Scan the 
> strips as is and have a computer match fractional patterns on the images 
> probably, to find possible neighboring places, assemble these as force 
> vectors (towards relevant parts of the same symbol) per edge of strip, 
> then reassemble using the resulting rat's nest for placement.

From: http://en.wikipedia.org/wiki/Paper_shredder

"Shredded documents can be reassembled even manually. ...

Modern computer technology considerably speeds up the process. The
strips get scanned from both sides, then the computer tries to find
obvious matches, and only requires human attention when it can not
reliably decide on its own. Several companies already offer commercial
document reconstruction services, ...  According to Robert Johnson of
the National Association for Information Destruction, the demand is
huge."

Allen
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