h/t @gershbrain
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This new paper in @nature is wild.
Using algorithms, the researchers were able to reverse engineer an image based on the shadows it produced on a wall (!).
More info here & link to article here: https://www.theguardian.com/science/2019/jan/23/creepy-things-ordinary-digital-camera-computational-periscopy-can-see-round-corners …pic.twitter.com/g2yU4zSvFH
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Does this mean the solution to Plato's cave is algorithms?
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Robots 1 : 0 Philosophers
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this is super cool but it's going to be used to kill people better
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Absolutely true, but the way things are you can say that second part about pretty much everything that exists.
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On the one hand this improves a certain scene from Blade Runner that has bothered nerds (read: me) but on the other hand applying this technique to video footage has the potential to mess with almost every movie ever made.
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That was my first thought too: well, there’s another technology from Blade Runner that now seems technically feasible in 2019.
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This *is* totally wild... But MATLAB? Uggh. This kind of awesome research should be done using something reproducible without expensive software packages.
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At least a generation of computer vision researchers got their start in MATLAB and carried it with them as junior faculty to their new research labs.
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this reminds me of those scenes in crime dramas where they "magnify" a really blurry jpeg
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Geordi did something similar in Identity Crisishttps://memory-alpha.fandom.com/wiki/Identity_Crisis_(episode) …
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This seems really cool but it also seems so obvious (in hindsight) that I don't know why it hasn't been done before.
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It seems people knew it was possible they just couldn't figure out the trick, especially with commodity hardware. Once you see a little bit of computational photography you begin to feel like anything is possible.
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lol, “i do not want to do creepy things, but...”
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Cool! Reminds me of the single pixel camera paper
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Isn't this basically a pared-down version of a camera obscura without lenses?
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It is like an inverse camera obscura, also known as a 'pinspeck' camera, but instead of a speck it can deblur from an shape (especially if that shape is known in advance).
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Heeft dit iets met wiskunde te maken
@ionicasmeets ? - End of conversation
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the allegory of the cave
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