Chapter 9
9.8 Calibration
Please check your firewall settings and ensure that it is not blocking DTrack2 application,
even partly.
9.8 Calibration
How can I find out when the room has been calibrated last time?
Please go to Calibration → Room and click Show details. The date of the last room
calibration is shown.
How do I define position and orientation of the room coordinate system?
The calibration angle defines position and orientation of the room coordinate system de-
pending on how you place it within the tracking volume. Please refer to table 8.17 on page
169.
DTrack2 offers the possibility to adjust the room coordinate system after the room cali-
bration. Please refer to chapter 8.6.4 on page 171 for more information.
How do I have to move the wand?
Move the wand gently within the measurement volume, in order to generate a virtual point
cloud. This point cloud should fill at least about two thirds of the measurement volume.
Please refer to chapter 4.8.3 on page 51 for more information.
I do not succeed in performing a room calibration.
• Please make sure that the calibration angle is placed within the measurement vol-
ume such that it is seen completely by at least two cameras (→ verify with Monitor
2DOF display). If not all cameras see the angle be sure that a sufficient volume
connects each camera to the others. No other marker except for the ones belonging
to the calibration angle should be visible.
• Please make sure that the correct calibration set (’Room Calibration Set TP’, ’Room
Calibration Set 410’ or ’Room Calibration Set 710’) is selected in the settings for
room calibration. Please refer to chapter 8.6.3 on page 166 for details.
• Please make sure that no reflections are seen by the cameras. If it is not possible
to eliminate the reflections you may use static suppression of reflections to remove
them. Please refer to chapter 4.8.2 on page 48 for more information.
• Please make sure that the markers positioned on the calibration angle are not dam-
aged or misarranged.
• Increase the flash intensities of the cameras until all markers are of good quality (i.e.
at least yellow). Please refer to chapter 8.5.1 on page 146.
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