Masking Infrared Interference for
Calibration
Masking is a function in Motive where an area of the BTSensor’s vision is masked (blocked from view).
This tells the system to ignore the masked section when looking for infrared sources. This is used
primarily to mask outside infrared interference that can confuse the system during BTSensor calibration.
Excessive masking may limit a BTSensor field of view, as a masked area makes a BTSensor blind to
tracking in that area. You can reposition BTSensors to improve fields of view, rather than masking in
extreme cases of infrared interference.
Attention: Calibration will be successful if you mask infrared interference before calibration. Masking
differs if Motive is configured for active or passive markers.
Motive 2
To automatically mask all visible infrared sources from all BTSensors
Attention: Automatic masking will remove all previous masks from the BTSensor.
In Motive, go to the Camera Preview window.1.
On the Camera Preview toolbar, click the Mask Visible Markers button.2.
The Mask Visible Markers button.
Result: All currently visible infrared sources are masked. Any previously created masks are
removed. If additional sections need to be masked, use manual masking techniques.
To clear all masks from all BTSensors
In Motive, go to the Camera Preview window.1.
On the Camera Preview toolbar, click the Clear Masking button.2.
The Clear Masking button.
Result: All masking are cleared from all BTSensors.
To manually mask a BTSensor view
In Motive, go to the Camera Preview window.1.
Result: What each connected BTSensor sees is displayed as a 2D image in the Camera View
window. If BTSensors are configured to see infrared sources, they appear as white objects.
Camera View window with infrared interference.
On the Camera Preview toolbar, select the shape of the mask, either Draw Rectangular Mask or2.
Draw Circular Mask from the toolbar.
The Draw Rectangular Mask button.
Result: You will create masks in the selected shape.
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