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Camera Can See Around Corners

ananyo writes "Scientists at the Massachusetts Institute of Technology in Cambridge have created a camera that is able to record images of objects hidden behind walls. They fire a pulse of laser light at a wall on the far side of the hidden scene, and record the time at which the scattered light reaches a camera. Photons bounce off the wall onto the hidden object and back to the wall, scattering each time, before a small fraction eventually reaches the camera, each at a slightly different time. The camera captures this time-of-flight information and uses it to reconstruct an image of the hidden object (abstract)."

13 of 64 comments (clear)

  1. Prior Art by No,+I+am+Spratacus! · · Score: 2

    Technology like this will make its way into first-person shooters! But really.. they should just get a wall-hack.

    1. Re:Prior Art by zerro · · Score: 2

      noclipping=1

    2. Re:Prior Art by Nialin · · Score: 2

      Personally, I'd rather just see the technology improve so that the image is more accurate, which seems likely.

      The 2 picosecond resolution is obviously the limitation here; just like that of a camera with a 240p resolution, or a low Frames Per Second. The faster a camera like this is able to collect reflected data, the better the overall quality.

      Just think of the implications for photography and cinematography! Michael Bay would have a field day with this shit. And then someone with talent could actually make a good movie, too, but you know, whatever...

      The future looks rather interesting, albeit vague, with this tech. And it's just around the corner.

      /pun

    3. Re:Prior Art by JazzLad · · Score: 3, Funny

      idspispopd ftw

      --
      "If you have nothing to hide, you have nothing to fear." - Every fascist, ever
    4. Re:Prior Art by mcgrew · · Score: 2

      Two picoseconds is pretty damned quick. The fastest my old SLR would go was 1/5000th, and it needed fast film and lots of light to get an acceptable picture at that speed. Movie cameras operate at 1/24th of a second. 1/16th for a 35mm still in low light, but you need a tripod and pretty sedentary objects to film.

      I just don't see artistic uses for this, but I see lots of military uses.

      It makes me think of the computer in "Blade Runner".

    5. Re:Prior Art by KhabaLox · · Score: 2

      Movie cameras operate at 1/24th of a second.

      Two things. Film movie cameras are quickly disappearing. I think I heard that the last manufacturer has stopped production. 2nd, film movie cameras may capture 24 frames per second, but that doesn't mean their exposure time is 1/24th of a second. It is significantly less.

      --
      Ceci n'est pas un sig.
  2. This story looks familiar... by ClickOnThis · · Score: 4, Funny

    Oh yeah, now I remember.

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    If it weren't for deadlines, nothing would be late.
    1. Re:This story looks familiar... by Walking+The+Walk · · Score: 3, Funny

      Silly, that one was about a system at MIT that captured scatter at 2 x 10^-15 seconds resolution. This one is a system at MIT that captures at 2 x 10^-12 seconds resolution. Clearly they should be different stories on Slashdot.

      --
      A recursive sig
      Can impart wisdom and truth
      Call proc signature()
  3. Mmm, paywall. by JustAnotherIdiot · · Score: 4, Insightful

    Article preview Read the full article Instant access to this article: US$32

    $32 for an article? Just think, a minimum wage worker has to work for over 4 hours to get access to that.
    Somehow, I doubt that article is worth it.

    --
    What do I know, I'm just an idiot, right?
    1. Re:Mmm, paywall. by Quaoar · · Score: 4, Funny

      If only someone invented some sort of laser that would allow me to see behind this paywall...

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      I'll form my OWN solar system! With blackjack! And hookers!
  4. Re:A camera that can see around corners? by JazzLad · · Score: 2

    So, it has come to this.

    --
    "If you have nothing to hide, you have nothing to fear." - Every fascist, ever
  5. Re:I too have created a device... by KevReedUK · · Score: 3, Funny

    You dare to mention windows in this forum?

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    Just my $0.03 (At current exchange rates, my £0.02 is worth more than your $0.02)
  6. Re:I too have created a device... by elgeeko.com · · Score: 2, Funny

    fanboy!