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You can use a Vicon Active Wand to set up your volume coordinate system quickly and easily (see Set the volume origin). However, using a larger calibration object (for example, markers embedded in the volume floor and wall) can improve calibration stability and consistency over time.
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- On the Camera Calibration tab, make sure the Advanced options are displayed (click Show Advanced at the top right if necessary).
- Ensure the Set Volume Origin section is expanded.
- From the L-Frame list, select the object that you created.
Ensure Perform Rescale is selected.
This ensures that the marker distances in the L-Frame object are used for volume scaling.
Click Start Set Origin.
The button displays Set Origin and is unavailable until Evoke has enough data to set the origin, when the button is enabled.
If issues are detected, Evoke displays a message in the Set Origin button's tooltip to help you solve the problem. For more information, see About collecting frames.
Click Set Origin.
The system scale is adjusted to provide improved calibration stability and consistency.