# Re: OCR Software..?!

Alex Belits (abelits@phobos.illtel.denver.co.us)
Wed, 12 Nov 1997 19:39:24 -0800 (PST)

- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
- Next message: David Mosberger-Tang: "Re: umax-backend"
- Previous message: Colin 't Hart: "Re: OCR Software..?!"
- In reply to: Colin 't Hart: "Re: OCR Software..?!"
- Next in thread: becka@rz.uni-duesseldorf.de: "Re: OCR Software..?!"
- Next in thread: Jonathan Buzzard: "Re: OCR Software..?!"

On Thu, 13 Nov 1997, Colin 't Hart wrote:

> An ideal OCR would use the "lower level" results from the letter
> recognition to influenece the "high level" word recognition and
> vice versa.
>
> I'm not familiar with this Neural Net speak, but I think this
> sort of thing is possible and should help to achieve much higher
> accuracy levels.

Good news: You are describing one of the uses for backward error
propagation in neural nets.

Bad [news?]: I am not aware of any serious study of this method's
consistent application in the system with large number of levels involved
(here it's shapes -> letters -> words [-> sentences]). OCR systems mostly
use "simple hacks", and probably neural-net-like things inside one level.

    --
    Alex

    --
    Source code, list archive, and docs: http://www.mostang.com/sane/
    To unsubscribe: echo unsubscribe sane-devel | mail majordomo@mostang.com

     Next message: David Mosberger-Tang: "Re: umax-backend"
     Previous message: Colin 't Hart: "Re: OCR Software..?!"
     In reply to: Colin 't Hart: "Re: OCR Software..?!"

     Next in thread: becka@rz.uni-duesseldorf.de: "Re: OCR Software..?!"
     Next in thread: Jonathan Buzzard: "Re: OCR Software..?!"