View Single Post
Old July 3rd, 2009, 12:27 PM   Digg it!   #1 (permalink)
Chuckiechan
Pump you sucker! Pump!
 
Chuckiechan's Avatar
 
Join Date: Oct 2001
Location: Sacto, Colliefornia
Posts: 8,649
Captcha at Work: Re - Captcha Interpreting Scanned Documents

What is reCAPTCHA?

Many old documents are being scanned into the public domain, and due to hand set type, stains, mold, blood , and other "issues", the scanners can't come out the accurate text conversions.

So when you enter "captcha" you see a second word ("re captcha"). What you actually could be doing is correcting a scan of a 1000 year old document!

The theory is that if you can do the "captcha" accurately, you will do the "re-captcha" accurately, also. When the collection of results leans far enough to one word, it is considered to be correct and in inserted into the document.

Very clever...
__________________
Obama has taken America from purported bully to notorious chump in less than a year.
Chuckiechan is online now   Reply With Quote
Search TechIMO for Answers: