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GIVA's 3D Visualization Lab

The image below shows the 3D visualization lab belonging to the GIVA (Geographic Information Analysis and Visualization) unit, which we also call the "Geowall". It is located at the University of Zurich's Irchel campus, in the Geography department (room Y25-J87, tel: +41446355237). The lab has been functional since fall 2007.

 

 

In the lab we have a stereoscopic projection system based on polarization (passive stereo). The technical setup of the lab consists of a stereo projector set, a back projection screen, and a workstation (both seen on the right) with the following specifications:

    3D Stereo projection system: Cyviz
    Model: Viz3D (integrated stand)
    Projectors: EVO 2, 2500 ANSI lumens (5000 lumen output), 2400 stereo lumens, 2500:1 contrast ratio
    Maximum resolution: SXGA+ 1400x1050 (UXGA, SXGA, XGA,

    SVGA compatible, 4:3 aspect ratio native)
    Expected lamp life: 2000 hours
    Stereo converter: Cyviz xpo.2 (resolution: 640x480 to 1280x1024)
    Vertical scan: 60-120 Khz, Horizontal scan: 15-110 Khz
    Separate sync, composite sync, and sync on green.
    Supports frame sequential stereo from any application
    Supports interlaced stereo video from any VGA source

    Workstation: Dell
    Model: Precision 390 E-smart
    CPU: Intel Core Duo E6700 (2.66 GHz, 4 MB Cache, 1066 MHz FSB)
    RAM: 4 GB
    Disk: 2x250 Gb (7,200 rpm) SATA II, 500 Gb External HD Western Digital
    Video: 750W-256 MB nVidia Quadro FX3500 (MRGA13) Graphics Card (dual head)
    OS: Windows XP Pro SP2

    Software
    Worldviz Vizard
    ShapeCapture
    Matlab
    StereoPhoto Maker (Freeware)
    Google SketchUp, Google Earth with TriDef's stereo plugin
    Microsoft Office

    Display: Stewart Filmscreen (rear projection)
    Model: Luxus Deluxe Screenwall Series, Filmscreen 150, SND120V (video format)
    Material: Flexible Rear Screen
    Size: 120" diagonal, Image height: 72" (1829 mm), Image width: 96" (2438 mm), Frame height: 78.5" (1993 mm), O.D. width: 102.5" (2603 mm)
    Viewing angle: 120"
    Screen weight: 20.4 kg
    Specs.

    Display: Da-lite (front Projection)
    Model: Picture king
    Size: 178 cm x 178 cm (square)
    Maximum height: 325 cm (including tripod legs)
    Minimum height: 243 cm
    Lowest bottom (distance from floor): 51 cm
    Specs.

    The images below are from two different demo events. The first three are from University of Zurich's 175th anniversary celebrations, while the last two are from a classroom demo for a first year course on Cartography and Geovisualization.

    Front projection screen on a tripod. On the screen we see a terrain model of Swiss mountains in stereo 3D (only with glasses!). The system is mobile with the front projection.Front projection screen on a tripod. On the screen we see a terrain model of Swiss mountains in stereo 3D (only with glasses!). The system is mobile with the front projection.

    In this picture Simone Garlandini (right) and Dr. Arzu Coltekin (left) are operating the system during a demo. To the left of Arzu we can see the twin stereo projector set in its case. The case allows precise calibration.In this picture Simone Garlandini (right) and Dr. Arzu Coltekin (left) are operating the system during a demo. To the left of Arzu we can see the twin stereo projector set in its case. The case allows precise calibration.

    Stereo projected images appear fuzzy and "double" when viewed with bare eyes (most noticeable at the upper right of the screen).Stereo projected images appear fuzzy and "double" when viewed with bare eyes (most noticeable at the upper right of the screen).

    During a classroom demo with students. For this particular system, we need polarization glasses. In this picture, students can be seen wearing them.During a classroom demo with students. For this particular system, we need polarization glasses. In this picture, students can be seen wearing them.

    During a classroom demo with students. To the left is Prof. Dr. Sara Fabrikant.During a classroom demo with students. To the left is Prof. Dr. Sara Fabrikant.

    For your questions or comments regarding the lab, please contact Prof. Dr. Sara Fabrikant and/or Dr. Arzu Coltekin.

    A simplified introduction in German can be viewed here (in PDF format, prepared by Silvio Zanola and Arzu Coltekin). GIUZ account holders can also view the internal Wiki pages for Geowall.

    Photos by: Silvio Zanola, Ronald Schmidt, Georg Paternoster. Illustration (first figure) by: Arzu Coltekin.

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