Massive no-touch physically-interfaced display

[Daniel] wrote in to show us the project his group has been working on. It is a massive display wall consisting of 28 projectors and 30 computers.  With a resolution of 7168×3072, viewing a 13.3 gigapixel image is a treat. That treat is made even stronger by the fact that navigating the image is done multitouch style with a touchless system built from web cams.  We’ve seen lots of projects come out of the NUI group with similar interfaces, but none that used the webcams like this. Usually, the webcam is detecting some kind of interaction between the person and an infra red light source. Maybe that is happening here and we just don’t see it.

Comments

  1. Gec says:

    Wouldn’t that be 13,3 Megapixel? Giga is a bit too much.

  2. Polymath says:

    I wonder if you could use a webcam set back at the projectors to color correct them so that you had a “seamless” image. A rear projection setup would be nice too.

  3. awesomepossum says:

    why projectors? their resolution is horrible compared to an actual screen.. not to mention the box shape that is being caused is far from a seamless display, offset in some of the demonstrations. While it is great in being closer to a minority report interactive reality- there seems to be a skip in quality, while at the same time being claimed.

  4. fushta says:

    to awesomepossum:
    i’m guessing it’s the cost. projectors are prolly cheaper.

  5. Wreck_Diver says:

    Gec,

    The IMAGE is 13.3 GigaPixel. If you watch the video they explain that the picture was stitched together from 2200 individual pictures in order to create this huge pic.

    Creative method of using the projectors similar to a rear projection TV instead of front. No shadows!

  6. cynox says:

    its 13,3 gigapixel! (13 300 millions) its a combination of more than 1000 hi-res-picture that makes it possible to get such a resolution

    try it yourself : paris with 26 000 pixels
    http://www.paris-26-gigapixels.com/index-fr.html

  7. cynox says:

    oops 26 000 millions pixel **

  8. Zencyde says:

    Man, I just built a 5760×1080 setup. I’m not supposed to be jealous! :(

    This kind of reminds me of this idea (of which I need to start a project on) that could use two webcams to approximate the line between the user’s sight and finger such that the data could be converted into cursor position. Never thought of using size, though, this is pretty interesting.

  9. BuddhaFW says:

    Would be a lot more impressive if they would have built the display from individual leds, just saying.

  10. @Polymath: I like the idea. It’s possible that they could, also, use the images to create individual filters for each projector to eliminate hot spots.

    @awesomepossum: They, probably, used projectors because they don’t have a bezel. Even if you tale an LCD/OLED/Plasma screen out of it’s case, there is always a rim of PCB and electronics around the active region of a screen making it impossible to get a continuous image.

    @BuddhaFW: Yea, but at that resolution they’d be soldering the LEDs until the sun died.

  11. strider_mt2k says:

    I think what they’ve done is incredibly impressive.

    Just wow.

  12. fartface says:

    No it’s 13.3 gigapixel… I have no idea why retarded europeans cant figure how how to use a decimal. even your scientists think it’s raging dumb to use a comma instead of a decimal.

    The wierd part is that it’s only a very recent (in history time) change that created the nasty bug that is transposing comma and period in numbers.

    Just because all of you got wacky back in 1958 does not mean you need to do something that only causes confusion.

    123,456,789.00 <- scientists all over this planet do it that way when using Arabic numerals. If you dont like it, then switch to roman.

  13. derp says:

    even with the seam issues between projectors (careful alignment and some hardware/software cropping could fix that, couldn’t it?), this is an amazing display.

    play plasma pong on it:

  14. ak77 says:

    “Just because all of you got wacky back in 1958 does not mean you need to do something that only causes confusion.”

    You do realize that MORE countries use the decimal comma, than the decimal point, right? (Also Ireland, Malta and the UK use the point.)

    http://en.wikipedia.org/wiki/Decimal_separator#Countries_using_Arabic_numerals_with_decimal_point

  15. ak77 says:

    On topic:

    I’m with strider, I think this is great.

  16. kristian says:

    man… imagine the potential with exploring mandelbrot sets and other fractals! so cool!

  17. HIrudinea says:

    Yea, this is impressive, when can I play Halo on it?

  18. Trc202 says:

    @Zencyde Do you have any pictures of your setup? I’d love to see it.

  19. mrgoogfan says:

    dang…

  20. jwt says:

    This article might help with the projectors:

    http://local.wasp.uwa.edu.au/~pbourke/texture_colour/edgeblend/

  21. Adam Sampson says:

    I’ve done some work with these guys — there are some videos of our complex systems simulations running on the Display Wall on YouTube:


    http://www.youtube.com/watch?v=YkwpJ8_xmVc

    It is a back-projection setup, and they do automatic correction using a webcam (you should see what it looks like before correction — and it’s actually not as bad in real life as it looks on video). The limiting factor is the different aging rates of the projector lamps; replacing them regularly is too expensive, so the best they can do is swap the lamps around so the nice bright ones are in the middle of the display.

    It’s the interaction stuff that’s really cool, particularly the gesture tracking using a row of cheap webcams on the floor and a string of Christmas lights on the ceiling!

  22. jwt says:

    i really want a wall like this. but with e-paper.

  23. DarkFader says:

    21 Mip… wow.
    Now add another 603 of those displays and you don’t need to zoom anymore :)

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