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MIT Research Amplifies Invisible Detail In Video

An anonymous reader writes "MIT researchers have invented an algorithm which is able to amplify motion in video that is invisible to the naked eye — such as the motion of blood pulsing through a person's face, or the breathing of an infant. The algorithm — which was invented almost by accident — could find applications in safety, medicine, surveillance, and other areas. 'The system is somewhat akin to the equalizer in a stereo sound system, which boosts some frequencies and cuts others, except that the pertinent frequency is the frequency of color changes in a sequence of video frames, not the frequency of an audio signal. The prototype of the software allows the user to specify the frequency range of interest and the degree of amplification. The software works in real time and displays both the original video and the altered version of the video, with changes magnified.'"

24 of 114 comments (clear)

  1. Useful for creepy movies? by Anonymous Coward · · Score: 3, Interesting

    Wish youtube wasn't blocked at work.

    Although, if this looks like what I think it looks like, I could see this having a lot of potential in the movie industry as well. Specifically enhancing things otherwise unnoticed could make for some very creepy footage.

  2. Re:Obvious application by BitterOak · · Score: 5, Insightful

    Privacy-violating nudity scans.

    We already have technology for that: Backscatter X-ray and millimeter wave scanners. You can find them in most major airports.

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  3. Enhance! by Bill+Hayden · · Score: 4, Funny

    n/t

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  4. Everything by Sparticus789 · · Score: 5, Insightful

    Now every recording device has the potential to become a lie detector.

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  5. Cool for Interviewers, Card Players by mooboy · · Score: 5, Insightful

    For employers, or even police: you could easily detect emotional flushes in someone's face when asked certain questions, i.e., a lie detector of sorts. Also, think poker players with this software built into their "Google Glasses".

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    1. Re:Cool for Interviewers, Card Players by Anubis+IV · · Score: 2

      Yeah, I was thinking that something like this could be applied rather easily to monitor breathing and heart rates for lie detection purposes. Though I hate to admit I saw it, in the movie Salt, they had a lie detector that didn't require anything hooked up to the user. It'd be neat if that technology could be real.

      The applications for poker are an interesting idea as well. Awesome thinking with that one. I could definitely see this sort of thing becoming part of quite a few augmented reality applications.

    2. Re:Cool for Interviewers, Card Players by Anonymous Coward · · Score: 4, Interesting

      I, for one, would love to see a poker tournament where all of this stuff was legal. It would have to take place on a separate circuit, but currently the top strategies are 'don't act emotional and wear dark sunglasses'. This would take things to the next level, so you might as well throw in real-time simulation outputs, probabilities, heart-rate monitors, histograms, etc, all available to each player in real time. Put a thin layer of lead paint on the backing of each card and you're good to go.

    3. Re:Cool for Interviewers, Card Players by Anubis+IV · · Score: 2

      I already know they are. From firsthand experience.

      Are they perfect? No. Can they be circumvented? Certainly. Should they be admissible in court? No. Are they still useful tools? Absolutely.

      And I pity someone who feels the need to take time out of their day to post the response you did, rather than just keeping it to themselves.

  6. Life imitating art by Overzeetop · · Score: 2

    No, that creepy footage in films is what FX departments are for - and they do it far more artistically.

    This is bringing all the creepy remote monitoring shit to your local and federal law enforcement departments, along with every other eye-in-the-sky system in use by government and industry.

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  7. Will be used for porn by cpu6502 · · Score: 2

    Here's iCarly.

    Here's iCarly enhanced..... you can see right through their shirts! (Watch; you'll see.)

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  8. Worst Case by TubeSteak · · Score: 3, Interesting

    to long-range-surveillance systems that magnify subtle motions, to contactless lie detection based on pulse rate.

    This is the first thing they're going to do with it.
    All the other applications might come afterwards.

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  9. Replicants beware! by dd1968 · · Score: 2

    Sounds like an essential component for a Voight-Kampff machine.

  10. Old by DarwinSurvivor · · Score: 2, Insightful

    Good lord, hack-a-day featured this over 2 1/2 weeks ago. In fact, there's already a bloody iPhone app!

    1. Re:Old by bill_mcgonigle · · Score: 3, Insightful

      I'm unclear - are you suggesting that Slashdotters should all be reading Hack-A-Day, know the Apple App Store inside and out, or that the information is time-sensitive enough to not be worth posting today?

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    2. Re:Old by catmistake · · Score: 4, Informative

      In fact, there's already a bloody iPhone app!

      For the love of Pete!! Pulse oximetry is not the same thing! Will ignorance ever tire of dismissively posting wildly inaccurate information to slashdot summaries??!!

  11. Re:Invented? by Bill+Dimm · · Score: 5, Informative

    I didn't RTFA or watch the video (good /.er and Flash disabled, respectively)

    If you click through to the article they have HTML5 videos served from YouTube there, so there is no need for Flash. Why Slashdot is still embedding videos as Flash is a mystery to me.

  12. Re:Oh fuck no! by wonkey_monkey · · Score: 3, Insightful
    Yes, clearly the demonstrated ability to remotely monitor a sleeping baby's pulse and breathing will have no practical use.

    adding its own bias based on naive attribution of moving areas to distinct objects? Then a human won't see important details behind things that software deemed worthy of emphasizing

    This isn't AI. It's actually fairly simple image processing. It has no bias or sense or worth. Yes, it can be tuned - by a human operator who will most likely know what they want to have their attention drawn to. How important are a few pixels in the background behind a barely breathing body when you're searching for a hypothermia victim?

    If the concerns you raise had any impact on a particular scenario, the operator can just use their own eyes or switch off the processing.

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  13. 2005 by Anonymous Coward · · Score: 2, Interesting

    Anyone else notice the Motion Magnification page was last edited September 12th 2005?

  14. Re:Obvious application by Mindcontrolled · · Score: 2

    So, to review the thread on a quite amazing algorithm, so far we have: privacy-violating nudity scans, application of any video feed as lie detector, government surveillance, yadda, yadda, yadda.

    Slashdot. News For Paranoids. Comments that don't matter.

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  15. Re:Obvious application by nschubach · · Score: 2

    What if the undead wanted their privacy hidden? Maybe they don't want everyone screaming and yelling when they enter a room and just want to unlive normal lives?

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  16. Re:older than that by FrootLoops · · Score: 2

    I think the novelty is in a new motion tracking technique. The video starts with color change tracking (probably because it's so dramatic) but switches to motion about halfway through. The MIT news report closes with a UC Berkeley professor's comments:

    "This approach is both simpler and allows you to see some things that you couldn't see with that old approach," Agrawala says. "The simplicity of the approach makes it something that has the possibility for application in a number of places. I think we'll see a lot of people implementing it because it's fairly straightforward."

  17. I knew I saw this before by slew · · Score: 2

    I knew I saw this stuff before... Siggraph 2005 http://people.csail.mit.edu/celiu/motionmag/motionmag.html

  18. Uncrop! by Sabriel · · Score: 4, Funny

    Red Dwarf - https://www.youtube.com/watch?v=KUFkb0d1kbU

    I mean, if you're going to break the laws of physics, might as well go for broke. :)

  19. Re:Obvious application by interkin3tic · · Score: 3, Insightful

    I've found that cynical comments in general get modded higher than more optimistic ones. The assumption seems to be made that if you're saying something bad about something, you know what you're talking about and appear wise. Someone praising something on the other hand, that's either a shill or a naive person. I guess pessimism is contagious.

    Uh, and that's dumb and we're probably all going to die somehow as a direct result of that pessimism...