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Prototype System Blocks Digital Cameras

lee1 writes "Researchers at the Georgia Institute of Technology have completed a prototype device that can block digital cameras. The team in the Interactive and Intelligent Computing division of the Georgia Tech College of Computing used off-the-shelf equipment (camera-mounted sensors, lighting equipment, a projector and a computer) to scan for, find and neutralize digital cameras. The system works by looking for the reflectivity and shape of the image sensors and saturating them with a thin beam of visible white light. The principal applications are expected to be protecting areas such as government buildings and trade shows against clandestine photography, stopping unauthorized amateur photography of, for example, shopping-mall Santas (really!) and defeating video copying in theaters. The countermeasure: film." Sounds perfect for copyrighted public spaces.

16 of 494 comments (clear)

  1. My Eyes My Eyes by Stormcrow309 · · Score: 4, Insightful

    I can't wait until they blind a few people testing this. I might want to go to concerts without my contacts or glasses.

    Honestly, I know they will try to make sure that they don't accidently get someone's glasses. However, when some boffins tried to create an active cellphone jammer for planes, it coded a guy by stopping his pacemaker during the tests. Doesn't make me feel real snazzy about the idea.

    --

    In God we trust, all others require data.

  2. Again, won't work. by Spy+der+Mann · · Score: 4, Insightful

    "The system works by looking for the reflectivity and shape of the image-producing sensors used in digital cameras."

    This means that spies could just design and use cameras which look non-suspicious by the sensors. And then again, what will happen when common glasses have integrated cameras in them?

    As usual, this kind of systems can only block the legitimate public (which tries not to break any laws), while the truly dangerous people just use more advanced technology.

    1. Re:Again, won't work. by homer_ca · · Score: 3, Insightful

      "This means that spies could just design and use cameras which look non-suspicious by the sensors."

      You mean like a digital SLR with a mechanical mirror shutter? The CCD is completely blocked off until you take the picture.

  3. Unbelievable by realmolo · · Score: 3, Insightful

    Expect to see this system installed at EVERY amusement park, and every landmark, and every tourist attraction.

    The Powers That Be are determined to make sure that ANY information the masses have access to is paid for.

  4. Only detects always-active CCDs by Anonymous Coward · · Score: 5, Insightful

    So... SLR-style cameras and cameras using CMOS sensors are invisible to the detector. Nice.

  5. Trivial and inexpensive countermeasures: by Ancient_Hacker · · Score: 4, Insightful
    This isnt a real brain-teaser for those that might want to photograph whatever they want:
    • The first person that gets accidentally zapped in their eye will sue for $100,000,000. That will stop this technology right there.
    • Even easier, just mention the above scenario to a corporate lawyer or legislator-- whammo, you don't even need one painful example.
    • Put your camera behind a little piece of burlap, cheesecloth, grille-cloth, or similar material. The camera will be able to see out, with maybe a f-stop or two of degradation. The super-anti-spying sensor will not see a thing.
    • Go to 7-11 and buy a pair of $3.99 cheap mirrored sunglasses. Put the sunglasses over the camera lens. The soooper sensor will see a mirror. Camera will see the world just fine, a f-stop or three dimmer but no sweat.
    • Go buy a square yard of reflective window-tint material. Cut it into 1 inch square pieces. Sell them ion eBay as "Miracle anti-sbnooping technology" for $4.99. $$Profit$$$!!
  6. Re:My question is... by Karma+Farmer · · Score: 3, Insightful
    Personally, I'd rather see cell phone jammers become more common--in restaurants and theaters, especially.
    If someone is talking in the theater while you watch a movie, talk to the manager and demand your money back. If enough people did this, the theaters would hire ushers.
  7. Digital SLRs by Kaa · · Score: 4, Insightful

    As described, this system will not work against *serious* digital cameras -- digital SLRs. In these cameras the CCD sensor (or, nowadays, more often the CMOS sensor) is hidden behind a mirror till the moment of the shot when the mirror flips away for a fraction of a second.

    Not to mention that in order to work the system will need to constantly scan everything with, presumably, beams of visible light. I doubt this will work out well at most places...

    --

    Kaa
    Kaa's Law: In any sufficiently large group of people most are idiots.
  8. Oh I wouldn't worry by Sycraft-fu · · Score: 4, Insightful

    This one ranks pretty high up on the "PhD idiot" scale. What I mean is that it continually amazes me, working in higher education, how people can be so educated yet know so little. The quote "An expert is someone who knows more and more about less and less until he knows everythig about nothing" really rings true. You see plenty of soltuions developed that completely and totally fail to account for the realities of the world.

    In this case, the problem is the way that a CCD is detected. They say they do it by checking it's reflection propreties. According to the article CCDs are retroflective, meaning they send light back to it's source, they don't scatter it. Ok fine but you think that will work reliably? Even if you get it so a system doesn't generate false positives (which will be a big problem, it's not like CCDs are unique in this property) what do you do when someone sticks a filter on their lense that changes the properties? I'm sure teh sense works fine when it's just a glass lense that does nothing but focus the light. I'm sure it doesn't work at all if you put the equivilant of mirror glass on the lense.

    I don't see this going anywhere on a large scale, espically since it would be hell to make it pick up and deal with long range lenses. It's not hard (if a little expensive) to get a lense that gets good shots at 500+ metres. How do you deal with that?

  9. Re:My question is... by IAmTheDave · · Score: 4, Insightful
    C'mon...the most OBVIOUS use would be in defeating the photo radar boxes (revenue generators) the cops keep putting out. Hell, if they could develop a 'personal use' wearable system like this, you could 'disappear' from all the cctv they're putting out more and more in the US. Hmm...will this system work with CCTV?

    Ah... but it is for this very reason that owning one will be immeidately illegal for common citizens, but perfectly fine for government agencies.

    --
    Excuse my speling.
    Making The Bar Project
  10. Source? by iamlucky13 · · Score: 5, Insightful
    Note - since the rise of cameras at intersections accidents have nearly doubled in some cases as people slam on the brakes in time for the person behind them to collide with them. But remember - it's safety - not revenue.

    Got a source for that one?

    I'd like to point out that there is a reason the light turns yellow for several seconds before it turns red. Sure, you can always speed up when it would be better to stop so you can make it through the intersection before it technically becomes illegal, but if the guy in front of you doesn't do the same, don't expect blame to fall on him.

    1. Re:Source? by Lumpy · · Score: 3, Insightful

      you forget, It's a GOD GIVEN RIGHT for people to tailgate in the USA.

      Hell it's downright unamerican of you if you follow at a safe distance from the car in front of you.

      Drive Safely? Phhhht!

      --
      Do not look at laser with remaining good eye.
  11. Re:My question is... by Gorshkov · · Score: 5, Insightful

    I'd be mighty angry if I was at the movies, and the babysitter couldn't call me and let me know that my children had hurt themselves and was in ICU at the hospital. Sure, I set the phone to vibrate, but beyond that, if somebody calls me, I want to know about it.

    People have been dealing with that just fine since pagers first started coming out.
    When you go to the theater, you leave your pager with an attendant, and he records where you're sitting ..... if something happens, they come in to get you, you LEAVE, and use the phone. All without disturbing anybody else.

    And lets' face it - it's s SHITLOAD more likely that you're gonna get called by some wanker who wants to know if you've picked up the cheese dip for friday's big game thatn to get a call that a close relative just died in a car crash.

    And a partially aborted rant ..... what the bloody hell is people's obsession, with being in touch with the entire world 24/7? What the hell is wrong with NOT being wired for an hour or two?

  12. Re:Sounds perfect for speed cameras by crawling_chaos · · Score: 4, Insightful
    Note - since the rise of cameras at intersections accidents have nearly doubled in some cases as people slam on the brakes in time for the person behind them to collide with them. But remember - it's safety - not revenue.

    I remember reading this was true with an incredibly important caveat: the number of injuries and fatalities from red light running is way down. You're getting more fender benders as people belatedly obey the fscking law instead of body bags when they flagrantly flaunt it.

    Personally, I think the fine for running a red light should be a 90 day license suspension on the first offense, increasing exponentionally with each subsequent. Then again, I was nearly run down at the intersection of Vermont and K by a SUV last week, so I may be a bit biased in this respect.

    --
    You can only drink 30 or 40 glasses of beer a day, no matter how rich you are.
    -- Colonel Adolphus Busch
  13. Re:My question is... by Vancorps · · Score: 3, Insightful
    I'll say the opposite considering my cell phone is used for all my communication and that means emergencies. If my phone won't work in a theater, guess what? I'm not going to that theater anymore plain and simple. If a server crashes and I'm unreachable because someone is passive-aggressive then they'll see their attendence drop considerably. I know plenty of people with children that hire a babysitter for the night so they can go and see a movie. These people would not be very happy if little Johnny was hit by a car and the sitter couldn't get in touch with them.

    I'll say that an usher would be much more affective and would not need to be there for the entire movie. A single usher could easily monitor multiple screens and at 7/hour I don't imagine would be very costly in the grand scheme of things.

    I'm with the grand parent here. Technology problems to solve cultural or etiquette issues will always fail. They are never a good idea and worse yet, they can be very destructive at the cost of a quiet theater. I don't see the ends justifying those means at all.
  14. Re:My question is... by dougmc · · Score: 3, Insightful
    Most theaters have some kind of curtain all over the walls. Embed wires in the cloth to create a faraday cage.
    It's easy to cover 99% of the places where a signal could get in. I believe there's even special paints that will block the signal. The problem is getting that last 1% -- and even if you let in 1% of the signal, that 99% reduction in signal strength might only translate to one or two bars on your cell phone. To really stop the phones, you'd have to block like 99.999% of the signal, which corresponds to no gaps at all, not even in the doors or ventilation system.

    Really, my point was that jammers are illegal, and for good reason. If you want to block the signal legally, you'll have to do it another way. Though really, I don't understand what the big deal is. I've been to the movies perhaps ten times in the last year, and I don't recall being disturbed by anybody talking on the phone or even by a ringing phone. As for people taking in restaurants, well, they're already full of people talking, so who cares if they're talking to somebody who's not actually there? (Unless they're there with me but that's another issue.)

    What bugs me are people walking around with headsets on, especially ones that are tricky to see, and it looks like they're just talking to themselves, and when they get close to me, I tend to think they're talking to me. But it's only mildly annoying, and even if it was really annoying, I'd not want to ban it or somehow break their phones.