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Google's Street View computer vision can beat reCAPTCHA with 99% accuracy

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Re: Google's Street View computer vision can beat reCAPTCHA with 99% accuracy

#22
post #11

>In this paper, we show that this system is able to accurately detect and read difficult numbers in Street View with 90% accuracy. > Turns out that this new algorithm can also be used to read CAPTCHA puzzles—we found that it can decipher the hardest distorted text puzzles from reCAPTCHA with over 99% accuracy. Am I missing something or could we improve CAPTCHAs by mimicking street numbers?

reCAPTCHA already does this, actually. It's part of the way Google trains their computer vision algorithms to recognize numbers. http://techcrunch.com/2012/03/29/google-now-using-recaptcha-...

But that's, as you said, to train their computer vision, not to make the CAPTCHA better as a CAPTCHA.

Re: Google's Street View computer vision can beat reCAPTCHA with 99% accuracy

#25
post #16
post #13

Earlier quoted context omitted.

That's been going on for two years: http://techcrunch.com/2012/03/29/google-now-using-recaptcha-...

Isn't this like free mechanichal turk services? Or forced labour or something. Cynically brilliant outsourcing, tho.

Humans recognize images, machine learning makes use of that in ways no human fully understands, and that makes it "google's computer vision"? AI has really come a long way :P

http://en.wikipedia.org/wiki/The_Turk

Re: Google's Street View computer vision can beat reCAPTCHA with 99% accuracy

#27
post #5
post #2

In effect, Google computer vision got so good that they made their own system obsolete. This is a good thing. I still think the only reliable way to confirm identity (or humanity) online is an email or SMS verification. Recently, receiving a 2-factor SMS code took less time than the page refresh prompting me to enter it.

That confirms identity, but it doesn't confirm humanity. Robots just need to have a SIM card! I think it would annoy many human users as well.

We should just throw a standard turing test at them.

"How was your day?"

Re: Google's Street View computer vision can beat reCAPTCHA with 99% accuracy

#28
Captchas were meant to keep spammers at bay. Unfortunately, that's no longer the case. Thanks to "cloud technology" like DeathByCaptcha - that is, people in countries where labor is cheap solving captchas all day - spammers have no problem getting through reCaptcha-protected sites and forums to do their mischief.

As a result, reCaptcha & co tend to be more of an annoyance to honest visitors than to spammers.

Re: Google's Street View computer vision can beat reCAPTCHA with 99% accuracy

#29
Now that programs are better and better at solving CAPTCHA - that means that correct CAPTCHA input will mean the opposite from what it means now. Since programs are better at solving CAPTCAH than humans, correct input (3/3 for example) will mean it's a robot. Thus, CAPTCHA becomes relevant again.

Re: Google's Street View computer vision can beat reCAPTCHA with 99% accuracy

#30
post #16
post #13

Earlier quoted context omitted.

That's been going on for two years: http://techcrunch.com/2012/03/29/google-now-using-recaptcha-...

Isn't this like free mechanichal turk services? Or forced labour or something. Cynically brilliant outsourcing, tho.

I highly recommend watching the TED talk by Luis von Ahn, creater of CAPTCHA and reCAPTCHA. He calls this "human computation". He is also the founder of Duolingo.

https://www.youtube.com/watch?v=-Ht4qiDRZE8

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