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Specify new Labeling properties
The labeling properties are available when you select the new Core Processing pipeline operations that include labeling (Label and Combined Processing). They are also available in the Properties pane when you click on Local Vicon System in the System resources pane.
In addition to the tooltips for each property, which are available when you hover the mouse pointer over each field, see the following additional descriptions on adjusting the values to suit your particular trials.
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Property |
Description |
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Single pass |
If selected, labeling is performed in a single pass, from beginning to end, instead of the default, which is to label from beginning to end, and then back to the beginning again. Single pass may be faster, but at the cost of labeling quality, particularly at the start of the trial. Default is cleared. |
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Boot every frame |
If selected, Nexus attempts to boot every labeling setup on every frame. This may improve labeling quality at the cost of processing speed. Default is cleared. |
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Label completeness entrance threshold |
Minimum proportion of markers that must be recognized by the system to start labeling the subject. Higher values help to prevent mis-labeling when the subject first enters the volume. Default is 0.85. |
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Label completeness exit threshold |
Minimum proportion of markers that must be recognized by the system to continue labeling the subject. Higher values help to prevent mis-labeling when the subject leaves the volume. Default is 0.6. |
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Booting quality |
Affects when the system starts labeling. Lower values are more tolerant, whereas higher values reduce risk of mis-labeling. Default is 0 (zero). |
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Booting versus tracking |
Values smaller than 0 favor rebooting while values greater than 0 favor tracking. Default is 0 (zero). |
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Tracking quality |
Lower values encourage labels to propagate between frames. Higher values reduce the risk of incorrect label propagation. Default is 0 (zero). |
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Smoothing factor |
Prior importance used by the kinematic fitter in tracking mode, defines the stiffness of the subject. Default is 200. |
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Joint Ranges Slack |
Values greater than 1 extend the calibrated joint ranges. Increasing this value, to extend the joint ranges, is useful when the subject does not go through their entire ROM. Values smaller than 1 tighten the ranges. Default is 1. |
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Enforce Joint Ranges |
If selected, Nexus tries to find a labeling solution while enforcing the subject joint ranges. Default is cleared. |