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Advanced Settings

Advanced Settings#

Attention: Only do the following things if changes have been made to the default settings and in coordination with Jan Linxweiler, Sören Peters or Konstantin Kutscher from the iRMB.

Graphic Card Settings#

If the projector does not display the correct picture, it may help to check the NVIDIA settings.

Open up the NVIDIA Control Panel and check the following settings:

  • Stereo - Aktivieren: Ein

  • Stereo - Anzeigemodus: Clone-Modus

  • Stereo - Augen Umkehrung: Aus

NVIDIA Control Panel 1

Verify that on “Anzeige - Mehrere Anzeigen einrichten” the displays show up like on the following picture:

NVIDIA Control Panel 2

Calibration#

The Calibration sets the coordinate system of the cameras in the room and is used to calculate the position of the “rigid-bodies” (tracking objects). Usually one is doing a calibration once a year or when someone moved or touched the cameras.

Doing calibration#

  1. adjust the calibration stick and the calibration angle. Both can be found in a black case, which is stored in the hardware room.

    • Arrange the angle

      • long side to the right

      • short side to the front (towards the middle of the wall)

      • 140 cm from the wall

calibration angle

  • compose the calibration stick

calibration stick

  1. Open DTrack3 Software located on the Desktop on the PC and click connect and then click “Stop” (button on the top left)

dtrack

  1. on Menubar → DTrack3 → Configurations

    • Configuration backups can be created and restored

    • Click on “New” to create a new configuration

dtrack config

  1. on Menubar → Tracking → Room Calibration

    • in order to use Paraview, “Powerwall” needs to be set as coordinate system

    • choose Room Calibration Set 410 (flat)

    • Click “calibrate”

dtrack calibration

  1. Move the calibration stick during the calibration process

    • Hold it by the long side

    • rotate the stick slightly

    • move it back and forth in front of the cameras.

  2. After the calibration a hint will appear that an offset, which was added before, will be overwritten. We add this offset again by going

    • to Menubar → Tracking → Room Adjustment → Fine

    • add 1170 mm to the y-offset → “OK”

dtrack-offset

DONE → Tracking can be continued by clicking “Start”

Add a new body#

  • click on Menubar → Tracking → Body Administration

    • add new body (containing markers)

dtrack new body

  • Click on “Calibration”

    • coordinate system need to be “due to room”

    • click “calibrate”

      • calibration starts → please move the calibration stick in front of the cameras.

      • Make sure no other targets are visible to the cameras

      • Afterwards the number of detected markers should be displayed, and the calibration can be finished by clicking “OK”

dtrack new body2

Projector Image Shift#

Using the frontend of the projector: http://192.168.0.111:9999

projector frontend

To support shifting the image one can add a Test Pattern under Image/Test Pattern. Additionally, the image can be shifted using the projector remote control (located in the installation room). However, this is very rough and should not be used for fine-tuning. The projector is mounted on a fixed platform and the lens can only be moved in a very small range. Therefore, usually the image shift should be done using the frontend.

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