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Cloud images that are recognized as human faces by a face-detection algorithm

276 points| jsvine | 11 years ago |ssbkyh.com

40 comments

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[+] ewindisch|11 years ago|reply
Far more interesting is their facial-captcha project: http://ssbkyh.com/works/fadtcha/

They assume that a computer will detect faces where humans do not and use such a selection as a captcha. It forces the computer to make a random guess against its matches so there is still a chance of it getting the right answer, but it's an interesting concept.

[+] camillomiller|11 years ago|reply
A lot of artistic value, but not so many practical applications. To bypass this, a bot can simply be tweaked to draw a frame shifted of x and y pixels in any direction after correctly guessing a face. The system will see no match with the non-detectable-by-a-human face and therefore it will think the bot is a human.
[+] arb99|11 years ago|reply
This one is interesting too... http://ssbkyh.com/works/cat_human/

" Human faces recognized as a cat face by a cat face-detection algorithm"

and

"Cat faces recognized as a human face by a human face-detection algorithm"

[+] bitwize|11 years ago|reply
A lot of Serious Cats got recognized as humans...
[+] NoMoreNicksLeft|11 years ago|reply
This is the basis of "artificial creativity". Train these NNs to recognize faces (or anything else, maybe especially everything else), and then run random noise through them. See what they come up with.

You could have an algorithm coming up with some pretty decent (and original) cartoon faces. Or with art, abstract or not.

This is what your brain does.

[+] mkal_tsr|11 years ago|reply
Now we just need a 90s Drug PSA spoof,

"This is your brain. This is your brain on neural networks. A cloud is not a face. Neural nets, not even once."

[+] erik|11 years ago|reply
Here is an implementation of this approach from a few years ago:

http://iobound.com/pareidoloop/

I experimented with doing something similar, trying to generate faces from random line drawings, but I didn't get very far.

[+] mattwad|11 years ago|reply
That doesn't sound right. You suggest if you give the computer something that looks like a face, then add a filter, it has somehow created an idea on its own. Yet you are still telling the computer what to do, it has done nothing creative on its own. I'd venture that real "creativity" is the reverse ... the ability to create something that is recognizable as a face.
[+] clarkmoody|11 years ago|reply
I was pleasantly surprised when this wasn't a bot unleashed on the 'cloud' to recognize human faces.

The resulting images do make an interesting exhibit of modern techno-art.

[+] mastermindxs|11 years ago|reply
I was really excited for this then I realized I have the cloud to butt extension on chrome.
[+] bitwize|11 years ago|reply
I was a bit flabbergasted the first time I pointed a digital camera at an Obey Giant sticker and a popup appeared: "The subject of this photo may have closed their eyes."

Maybe I shouldn't have been?

[+] tly_alex|11 years ago|reply
I tested those "cloud face" in the popular face recognition engine rekognition.com. None of them actually got recognized as face. Looks like the face recognition algorithm they uses are pretty smart.
[+] georgemcbay|11 years ago|reply
If you upload the image of the overall piece (the one with an out-of-focus head looking towards it) 2 of the cloud faces are recognized as faces. The other image of the piece taken at a more skewed angle with no head blocking it actually recognizes 3 of the panels as faces.

See:

http://imgur.com/afUsGGj

The funny thing about seeing false faces (or patterns in general, really) is that scale (and to some degree composition) matters, even for us humans. When I look at the large picture of the cloud that is the first one presented in the article at 100% scaling, I struggle to see any sort of meaningful face. But when I locate that same image as a panel on the overall work in a smaller scaled down presentation I see the 'face' immediately. With a browser that can appropriately scale down to 25% or less I can see the same thing happening with the actual large source images... once I hit about 50% scaling I can see the "faces" that the computer recognized.

Obviously YMMV depending upon monitor size vs dpi as to where they stop being clouds and start being faces.

[+] Houshalter|11 years ago|reply
Different algorithms will usually get different false positives. This is why large collections of algorithms generally perform much better than the best individual algorithm. I imagine these are all weird edge cases as it is.
[+] jrapdx3|11 years ago|reply
We do tend to "see" patterns that associate to built-in or learned abstractions, such as faces (or elephants, etc.) in clouds. This is especially the case when social reinforcement is a factor, like when someone points skyward and asks, "don't you see a face in that cloud?" and soon everyone standing nearby agrees it sure looks like a face.

That computers are "fooled" may simply reflect their human programming, though not being fooled could well be a very hard problem to solve.

It's amusing the way face-detection in my spiffy digital camera (an Olympus EM1) will find faces in all kinds of inanimate objects. The feature can be useful for photographing real people, but in other situations face-detection is just a distraction and I keep it turned off.

Though now I may have to aim the camera at a few clouds...

[+] smorrow|11 years ago|reply
> It's amusing the way FACE-DETECTION in my spiffy digital camera (an Olympus EM1) will find faces in all kinds of inanimate objects.

They set out to specifically look for faces. So that's what they'll find.

[+] jsvine|11 years ago|reply
> ‘Cloud Face’ is a collection of cloud images that are recognized as human face by a face-detection algorithm. It is a result of computer’s vision error, but they often look like faces to human eyes, too. This work attempts to examine the relation between computer vision and human vision.
[+] rdlecler1|11 years ago|reply
Is it really computer error? Most of us probably saw the face of Einstein in the one cloud photo, because in fact there was a strong resemblance. If a artist paints a caricature or abstract image we can often identify the original subject. That's not error. There is something else going on here.
[+] bane|11 years ago|reply
I think this means the algorithm is working.
[+] rkda|11 years ago|reply
So the algorithm has imagination. heh.