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A Computational Approach for Obstruction-Free Photography [pdf]

121 pointsby jestinjoy1almost 10 years ago

15 comments

mrbalmost 10 years ago
Very cool. But one inconvenient is that the processing they do removes all moving objects from the image. Look at page 10 of the paper: the 8 cars present in the original image on the road are absent from the reflection-free image.
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beobabalmost 10 years ago
I would love to have the app which they talk about in this paper on my phone. I suspect that people would pay good money for this.
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ghughesalmost 10 years ago
Their ability to recover the reflected image seems valuable to security agencies.
jakobeggeralmost 10 years ago
Ohhh this is beautiful. I have this childhood memory of my father trying to take pictures of vases behind glass in the museum, struggling to find an angle at which the polarization filter would remove most of the reflections on the glass display case...
rmcalmost 10 years ago
How come I see videos from academics for really really cool things like this. But I can't buy an app that does it?
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kazinatoralmost 10 years ago
The eyelets in a fence are much larger than your average camera lens. If you can go right up to the fence, the problem is solved.<p>Reflections from glass are minimized by also sticking the camera lens right up to the glass, and providing some shading around it. A simple lens skirt could be developed for this purpose (if such a thing doesn&#x27;t exist already).<p>Possible design: cone-shaped coil spring encased in opaque cloth, with rubber o-ring gaskets fitted on both ends. One gasket (narrow end) goes on the camera&#x2F;phone around the lens, the flared end gasket goes onto the glass.
leni536almost 10 years ago
It could be interesting to apply it on existing videos on youtube. It could reveal some perceptually hidden information out of reflections.
mirzmasteralmost 10 years ago
Here&#x27;s the official Siggraph 2015 submission, linking to both the PDF as well as the demonstration video:<p><a href="https:&#x2F;&#x2F;sites.google.com&#x2F;site&#x2F;obstructionfreephotography&#x2F;" rel="nofollow">https:&#x2F;&#x2F;sites.google.com&#x2F;site&#x2F;obstructionfreephotography&#x2F;</a>
jberrymanalmost 10 years ago
<a href="https:&#x2F;&#x2F;upload.wikimedia.org&#x2F;wikipedia&#x2F;en&#x2F;e&#x2F;e5&#x2F;Magritte_TheSonOfMan.jpg" rel="nofollow">https:&#x2F;&#x2F;upload.wikimedia.org&#x2F;wikipedia&#x2F;en&#x2F;e&#x2F;e5&#x2F;Magritte_TheS...</a>
bmarxalmost 10 years ago
nice work! what are the applications for that besides taking clean pictures behind a glass windows or a fence?<p>Security agencies applying that algorithms to see if they can obtain some extra information out of the reflected pictures?
WillyNoursonalmost 10 years ago
Ah, the end of the bathroom-mirror selfies ? :D
jacquesmalmost 10 years ago
This could be a nice feature on a camera, but you&#x27;d need a second sensor offset from the first to make that work.
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baqalmost 10 years ago
examples in the pdf have a CSI zoom-enhance feeling to them... good stuff.
medecaualmost 10 years ago
TL;DD (Too Large, Didn&#x27;t Download)<p>I did search google for &quot;Obstruction free Photography&quot; and there is one video on youtube that explains the technology and provides examples.<p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=xoyNiatRIh4" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=xoyNiatRIh4</a>
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baseballmerpeakalmost 10 years ago
Enhance. Enhance. Enhance. Just print the damn thing![0]<p>[0] <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=KiqkclCJsZs" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=KiqkclCJsZs</a>