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U of CA Constructs 220 Million Pixel Display

eldavojohn writes "Engineers at the University of California, San Diego have built a 220 million pixel display across 55 high-resolution tiled screens. Linked via optical fiber to Calit2's building at UC Irvine, the display can deliver real-time rendered graphics simultaneously across 420 million pixels to audiences in Irvine and San Diego."

30 of 145 comments (clear)

  1. Across Irvine and San Diego? by admactanium · · Score: 5, Funny

    they're an hour apart. that's a lot of people fighting over the remote.

  2. Human eyes by biocute · · Score: 2, Insightful

    That's all good, but are our eyes capable of viewing every single px of it?

    1. Re:Human eyes by tonsofpcs · · Score: 5, Informative

      No. "It's exciting," said Joerg Meyer, a professor of computer graphics and visualization who helped develop the screen's software. "This display has higher resolution than the human retina can see." http://www.latimes.com/news/printedition/californi a/la-me-highdef13aug13,1,5603082.story?coll=la-hea dlines-pe-california

  3. Remove the seams by QuantumG · · Score: 4, Insightful

    Then we'll talk.

    --
    How we know is more important than what we know.
    1. Re:Remove the seams by Fred_A · · Score: 4, Funny

      I think that since you're supposed to look at it from 7km away you can't see the seams.

      The main problem is that they need 408 repeaters for the USB mouse and keyboard.

      --

      May contain traces of nut.
      Made from the freshest electrons.
    2. Re:Remove the seams by Woy · · Score: 2, Funny

      And a high chair.

      --
      "If God created us in his own image we have more than reciprocated." - Voltaire
    3. Re:Remove the seams by MrNaz · · Score: 2, Informative

      Anything like this is easy if the Uni gives you its yearly showoff budget.

      --
      I hate printers.
  4. It's called UCSD or by Ohreally_factor · · Score: 5, Informative

    University of California at San Diego.

    Can't samezenpus get the least bit of editorial right? Oh, yeah, he can't. He's samzenpus, and he's not an editor, he's an idiotor.

    I mean wtf is U of CA? I've never seen it written like that, ever.

    And to get this rant back on topic:

    Is the screen effervescent?

    --
    It's not offtopic, dumbass. It's orthogonal.
    1. Re:It's called UCSD or by Capt'n+Hector · · Score: 2, Informative

      THANK you. I made a similar comment a while back, and got hit with a -1, offtopic. I sincerely hope you fare better. U of CA should be written as UC, end of story. It's not offtopic this time though, look at the freaking page title!

      --
      Quid festinatio swallonis est aetherfuga inonusti?
      Africus aut Europaeus?
    2. Re:It's called UCSD or by mchanaud · · Score: 4, Insightful

      as a non american, U of CA is much more comprehensible than UCSD. But, wait, who really matters about non american readers?

    3. Re:It's called UCSD or by cdrudge · · Score: 2, Funny

      I would have thought that non-Americans would have interpreted U of CA as University of Canada...

    4. Re:It's called UCSD or by MrNaz · · Score: 4, Funny

      We're also aware that /. is run by Americans, and that Americans aren't aware that there are any Universities in Canada.

      Mods: That's a joke. That's "haha" as distinctly opposed to "die troll scumbag take this -1 and then we'll see who has the last laugh!".

      --
      I hate printers.
  5. $420 Million Webpage by Joebert · · Score: 4, Funny

    Just in time for my $420 million webpage.

    --
    Wanna fight ? Bend over, stick your head up your ass, and fight for air.
  6. I have an idea by nihongomanabu · · Score: 2, Funny

    pac-man anyone?

  7. Re:My first thought,,, by RuBLed · · Score: 5, Funny

    mine was... What's the return policy on dead pixels?

  8. Re:WANT! Really, really want. by Anonymous Coward · · Score: 2, Informative

    Its tiled displays. This is really more about something along the lines of technology(think video card) capable of outputting ridiculous resolutions.

  9. Re:WANT! Really, really want. by AnimeDTA · · Score: 2, Insightful

    Its 50x 30" displays, its not about the display so much as the cluster of 18 computers/video cards working together. That sets each individual computer at rendering just under 3 displays each. An easy feat in and of itself. Now getting it to work syncronously with 17 other computers... thats neat.

  10. No, but yes by SpeedyDX · · Score: 5, Informative

    The resolution of the human eye is relatively minute (it's usually not measured in MP, but I think the best equivelence was quoted around 15 MP at any given time). The easiest way to explain it, I think, is that your eyes are never in the same position for more than a split second. It's constantly moving and looking at any given object from a multitude of different angles. So no, it isn't able to see 220MP, but at the same time, it is (theoretically) able to see a better image with a higher pixel count, because of the fact that your eye is never stationary.

    But that doesn't take into account your brain. Your eye transfers raw data to your brain similar to a bitmap/RAW file. The way your brain processes this information, though, is more like a vector image. Our brains "see" lines and shapes much more than it sees individual points of colours. Which makes the answer even more complicated. We don't really see all the pixels, but we're able to piece together most of the pixels while our eyes move about, ALTHOUGH our brain "transforms" that information so it makes more sense to us.

    A really neat example that illustrates how the brain processes raw data: close your eyes, and get a friend (or yourself, if you can trust yourself not to cheat) to hold up something that is near the outer edge of your peripheral vision. Open your eyes, but don't move them - keep looking straight ahead so that the object is still near the edge of your peripheral vision. You can SEE the object, and can possibly even tell what it is. But what colour is the object? Even though your eyes are able to see colour even in your peripheral vision, the brain doesn't think that the information of colour is as important as the outline/shape of the object. It is only when something is near the centre of your vision (in other words, where your attention usually is) that you can tell what colour it is.

    1. Re:No, but yes by wumpus188 · · Score: 5, Informative

      No. You cannot see the color of the peripheral object because the cone cells, which are responsible for the color vision, become sparse towards the edge of the retina.

    2. Re:No, but yes by Anonymous Coward · · Score: 2, Interesting

      I got the impression from a new scientist article that the transfer to the brain is not ina "raw" format, but in the format that you describe the brain using- the processing is local (in the optical nerve) to save bandwidth.
      It described the mechanism being a second set of nerves behind the rods and cones that fired in response to certain relative changes between nearby rods and cones.

    3. Re:No, but yes by E++99 · · Score: 3, Informative

      The resolution of the human eye is relatively minute (it's usually not measured in MP, but I think the best equivelence was quoted around 15 MP at any given time).

      It's not usually measured in pixel count because pixel count is an entirely irrelevant concept to eye resolution. The angular resolution of the eye is extremely high at the center of the image, and falls off extremely rapidly in a very steep bell curve. So unlike a monitor, the number of pixels across the eye's vision does not correlate at all to the maximum angular resolution of the eye.
    4. Re:No, but yes by $random_var · · Score: 3, Insightful

      Your eye transfers raw data to your brain similar to a bitmap/RAW file.

      No. While the bulk of the signal processing is performed in what is theorized to be a 4-layer neural network, the retina is actually able to perform a substantial amount of processing on its own. For example, lateral inhibition between receptors highlights edges - at the edge of black and white, the data that is sent to the brain actually shows the black as more black and the white as more white. There are also thought to be motion detectors in the retina, color processing (our "red" and "green" cones are actually very, very close in their wavelength responses, and both even overlap with the "blue" response curve, so it requires some processing to actually separate the colors out), and far more that we still don't understand. The actual rods and cones make up a small part of the complicated network that is the retina.

      Even though your eyes are able to see colour even in your peripheral vision, the brain doesn't think that the information of colour is as important as the outline/shape of the object.

      No. You can't see color in your peripheral vision because the periphery of your retina is optimized for motion and brightness, ie it contains mostly rods instead of cones. There is also a higher convergence of individual receptors onto ganglia.

      Talking about the eye as it related to a pixellated display is meaningless, because the eye does not see in, strictly, pixels, and the eye's receptors show significant spatial variation. Higher resolution will still translate into smoother curves, finer motions, and so on, and that will still have some effect on our subjective perception of the display.

  11. IR4 by dwater · · Score: 3, Interesting

    Silicon Graphics' Onyx IR4 could drive this many pixels, couldn't it?

    IIRC, it was 16 pipes, 8 displays per pipe, 1920x1200 per display - I make that almost 300M (pixels, not dollars - it'd be *many* more dollars) - probably not remembering correctly, but still. ... and OpenGL Performer could make it all work nicely for visualisation too. I wonder what's happened to OpenGL Performer.

    --
    Max.
  12. Not a theater system! by ejito · · Score: 4, Insightful

    People who are dismissing as just a wall of monitors are mistaken. It takes dozens of computers to run that resolution, which is no trivial task. This is not a theater system, so complaining about seams misses the point entirely. If they were just looking for a semi-large seamless screen, any shmuck could just use a single projector.

    This system allows groups of researchers to review large amounts of visual data in both macro and micro scale. If you want to see the micro scale, you simply walk up to an individual monitor. Review can be done simultaneously among many people.

    For a seamless, 100 million pixel projection screen (this is also not trivial, as removing seams requires real time brightness and color correction along edges) can be viewed here. In comparison, an IMAX theater uses a very large single projector unit weighing nearly 2 tons.

    The sister screen at UCI can be viewed at here.

    1. Re:Not a theater system! by poot_rootbeer · · Score: 2, Interesting

      This is not a theater system, so complaining about seams misses the point entirely.

      I can't think of a large-format display usage that WOULDN'T benefit from seamlessness. I don't know why you think it's only relevant to movie theaters.

  13. Soon a 7 billion pixel display? 1 pixel/person? by wisebabo · · Score: 2, Interesting

    It is conceivable that soon technology/engineering will make it possible to have a multi billion pixel display.

    An interesting application might be to assign a pixel to each person living. Then as they pass through the phases of life, their brightness could wax and wane. Also perhaps color could be used to identify race or geography.

    Might be an interesting display in a world's fair/expo kind of context. Being able to walk right up to it and realizing that you are just one of the billions of little dots could be pretty awe inspiring.

    Perhaps it would give new meaning to the comment "he seems kinda bright". (ba du bum ;)

  14. How to keep your funding by GayBliss · · Score: 2, Funny

    This is what they say in public:
    "...allows us to experiment on the two campuses with distributed teams that can collaborate and share insights derived from a better understanding of complex results."

    But it private:
    "this is fucking awesome!"

  15. Bad Pixels by BillGatesLoveChild · · Score: 2, Funny

    So how many bad pixels do I need before they'll exchange this thing? http://news.com.com/2102-1041_3-5579493.html?tag=s t.util.print

  16. Is that a lot? by Anonymous Coward · · Score: 2, Funny

    Did anyone else have to square root this to see if it was impressive or not?

  17. Re:Not completely unique! by Scubaraf · · Score: 2, Informative

    Here's picture of the Broad display: http://www.justinmanor.com/Broad/crx.jpg