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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), a Kinect sensor and Wii board/wiimotes with the following specifications:

    3D Stereo projection system: DepthQ
    Model: DepthQ Passive Bundle
    Projector: HDs3D1
    3D, 3500 ANSI lumens, 2700 lumens stereo mode, 2100:1 contrast ratio
    Max resolution: 1280 x 720 WXGA (XGA, SVGA compatible)
    Aspect ratio: 16:9 or 4:3
    Expected lamp life: 3000 hours
    Vertical scan: 120 Hz

    Horizontal scan: 77100 kHz
    Delay: 8.33 ms
    Polarization Modulator: circular
    Glasses: lightweight passive circular polarization

    Workstation: Dalco
    CPU: Intel Core i73960x
    (3.30 GHz, 15 MB cache)
    RAM: 32 GB
    Disk: 2x2000 Gb (7,200 rpm) SATA II
    Video: GeForce Quadro 4000
    OS: Windows 7 Enterprise (SP 1)

    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.

     

    Eye tracker : Tobii
    Model: TX300
    Data rate: 300Hz
    (Binocular)
    Accuracy: 0.4 deg
    Freedom of movement:
    37x17x65

    Tobii Floor Stand
    Eye tracker: X120
    Max height: 177 cm
    Min height: 80 cm

    Kinect Sensor
    Wiimote / Board

    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.