Chapter 9
9.9 Tracking
Starting with DTrack2 version v2.10 a new license model has been established. You may
activate and calibrate 4, 10, 30 or up to 50 targets depending on the license purchased.
Please refer to table 8.6 on page 141 for more information.
How shall I evaluate the body calibration results?
Verify that all markers of the target have been recognized during the DTrack2 body cali-
bration. Further, you may check if the single distances between the markers are correct
(refer to chapter 8.6.5.3 on page 178).
As a special service you may send us the calibration file and we are going to check it.
9.9 Tracking
My target (active or passive) is not recognized sporadically or only partly or
even not at all.
• Go to Settings → Cameras and tick the checkbox ’modulated flash’. Only one cam-
era can emit the modulated flash, thus the selected one should have unobstructed
view of the whole tracking area. Furthermore it has to be assigned to syncgroup
#1 ! ARTTRACK5 , ARTTRACK5/C , TRACKPACK/E , & TRACKPACK systems
may be configured via software, while ARTTRACK2 & ARTTRACK3 have to be
connected to ’OUT1’ on the controller’s Synccard.
• Also, take into account that the distance between active target and cameras should
not exceed 4.5m.
• Active targets cannot be used near or in front of plasma screens. The IR emission
of the plasma screen overdrives the IR receiver in the active target. See also the
FAQ section: Operation near plasma screen.
• Please perform a new room calibration.
• Double-check if the marker surface is not dirty or dusty and that it doesn’t appear to
be worn out.
Tracking does not work.
• Please make sure that the measurement has been started and that the target is
within tracking range of the cameras.
• If marker recognition is poor then increase the flash intensity.
• Check number of markers that are used for calculation. If all markers of the target
are seen by the cameras, but partly not used for calculation, then execute a new
room calibration.
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