Comments on: recaptcha.net proves I am not human http://cd34.com/blog/boring/recaptchanet-proves-i-am-not-human/ This is my blog, there are many others like it but this one is mine. Wed, 01 Feb 2012 13:05:45 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Ben Maurer http://cd34.com/blog/boring/recaptchanet-proves-i-am-not-human/comment-page-1/#comment-92 Ben Maurer Sun, 26 Apr 2009 03:51:36 +0000 http://cd34.com/blog/?p=624#comment-92 I'm the chief engineer on reCAPTCHA. In our efforts to correct OCR, sometimes we encounter words that are simply unreadable. Since there's no way for a computer to tell if a human will or will not be able to read a word with complete accuracy, sometimes words like the one on the left are sent out. Our system quickly recognizes these words based on differing human answers or the use of the "get another CAPTCHA" button. The unreadable word is never graded (since we don't know the answer anyway). I’m the chief engineer on reCAPTCHA. In our efforts to correct OCR, sometimes we encounter words that are simply unreadable. Since there’s no way for a computer to tell if a human will or will not be able to read a word with complete accuracy, sometimes words like the one on the left are sent out.

Our system quickly recognizes these words based on differing human answers or the use of the “get another CAPTCHA” button. The unreadable word is never graded (since we don’t know the answer anyway).

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