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Domain: studierstube.org

Stories and comments across the archive that link to studierstube.org.

Comments · 6

  1. I kinda did this by gigne · · Score: 2, Informative · on Use Your Cellphone as a 3D Mouse

    I had a go at doing this a while ago using AR toolkit plus which uses AR Tags as a reference point to send the mouse data to the computer. I never really did get the camera filter working so I abandoned it. I did ask Daniel Wagner (the lead guy on artoolkit plus) for the DSVideoCE component source, which is a CE directshow filter, but he replied that it wasn't possible to release it. CE is a pain in the backside so I gave up. It worked pretty well from a video file I pre-recorded, so I reckon it would have worked well.

    Pretty much everything about artoolkit plus worked out of the box, and the bluetooth code to emulate a mouse was pretty simple. if someone wants to give something like this article a bash, I would start with something like this.

    My 2p

  2. Re:Doubtful by S3D · · Score: 1 · on Fighting Android Sparring Partner
    So how exactly are you getting 3D information from a single camera? Are you assuming a known size of the marker or are you comparing successive frames? what is the accuracy of your depth resolution?

    I'm using more complex algorithm, more simple mobile versions could be found here :
    http://studierstube.org/handheld_ar/artoolkitplus. php
    or here
    http://staffwww.itn.liu.se/~andhe/UMAR/
    PC version
    http://artoolkit.sourceforge.net/
    My version vill be avaliable for download probably in month or two. Depth resolution actually is a sore question. For now it's like around .1 (if we take 1 as focus distance), but I'm working on it. Lateral resolution is less then one pixel after projection (for my algorithm :)), for standatrt AR toolkit it could be somehow worse.
  3. Re:glitch? by phantomas · · Score: 1 · on The Invisible Train
    well observed ;)

    Everyone who's ever attempted to take a decent photograph of a handheld's (or mobile phone's) display knows that it's next to impossible to get acceptable color and contrast. (check out our original photo: http://studierstube.org/invisible_train/images/inv isible_train_01_low_contrast.jpg) . So I just pasted in screenshots acquired directly from the PDAs' framebuffers. But apparently, I screwed up ;) I'm not going to fix it, though -- most people won't notice anyways.

  4. Cool by Lord_Dweomer · · Score: 2, Informative · on The Invisible Train
    Cool stuff. Here's a direct link to the video on the website showing the tech off. Good video, and the brunette girl Karin is really hot.

  5. glitch? by Lust · · Score: 1 · on The Invisible Train

    Anyone notice that the right-most switches in this image are not synchronized between the two PDAs? Oops. Maybe I'm being picky...but if you're going to kludge a photo-op, get it right! :)

  6. This is old technology... by Tsar · · Score: 4, Insightful · on Virtual Reality Book Overlays

    ...It's called a "pop-up book."

    Seriously, this seems to be a pretty trivial, and almost useless, implementation of the ARToolkit. If you're going to have to wear goggles anyway to view part of the material, why not just put the whole book in memory and display it that way without having to go through the complicated and clunky "augmented-reality" step?