Tracker legacy documentation:

This information is for Vicon Tracker 3.9. For up-to-date help, see the latest Tracker documentation.

Vicon Tracker banner

Prepare and manage the objects whose motion data you want to track in Vicon Tracker on the Objects tab. Objects are a rigid, asymmetrical arrangement of at least three markers. Multiple objects can be defined to track many rigid bodies at the same time and different smoothing filtration presets can be applied to each one.

The Objects tab contains these components:

Objects listLets you enable an object for motion capture and data recording. If a working .vsk file exists for the object, the object symbol is orange and the object name is gray. If the name is red, the .vsk file is not suitable for tracking (this may be due to symmetry in the arrangement of markers, or similarity to another enabled object). To display a tool tip identifying the problem, hover the mouse pointer over the object.
To display or hide the model markers defined in the .vsk file, expand ( + ) or collapse ( - ) the Markers list.
Tips To manage specific objects, in the Objects list, right-click on the relevant node and from the context menu select a command. The Open Folder option, at the bottom of the context menu, provides a quick way to locate a relevant file. The color-coded symbols displayed for entries in the Markers list correspond to the colors defined for each model marker in the .vsk file.
Object Type Preset sectionEnables you to view and manage the type of smoothing applied to a selected object. Smoothing is achieved using a One Euro, low-pass smoothing filter. You can choose from one of the following supplied filters:
  • HMD: Used for head-mounted devices.
  • InteractionDevice: Used for Vicon Apex.
  • General: Used as a general purpose starting point
    If none of the supplied filter types is suitable for your application, you can also create and save your own custom filter presets, so that you can quickly and accurately apply them to other objects (for more information, see Creating an object).
Properties pane
Enables you to view or edit object properties.
Object Tracking Mode controlTo view unlabeled reconstructions in the view pane (to enable you to create new objects), ensure Track is not selected.
Viewing unlabeled reconstructions requires additional processing, so for lowest output latency, when you have finished creating objects, click the Track button to change to Track mode.
Create Object controls
To create a new object, ensure Track mode is selected (see above), select at least three trajectories in the view pane, enter a name in the Create Object box, and click Create or press CTRL+E. For more information, see Creating an object.
Add Marker to Object controlsTo add marker(s) to the selected trajectory of a selected object, click the Add button.
If a calibrated object becomes distorted due to a marker having been been lost and replaced in a slightly different position from its original location, to update the marker position, select the affected marker and click the Recalibrate button.