Tracker 3.8 new features and functions

New features including the following were added to Vicon Tracker 3.

Ability to use Viper cameras with Tracker

You can now use strobeless Viper and ViperX cameras as part of your Vicon Tracker system, enabling you to benefit from using active markers in your volume. Active markers are particularly useful in large volumes where they provide a significant visibility improvement, especially in adverse conditions.

Tobii Eye Tracker integration

Location: System Resources tab > Devices > Add Digital Device > Add Tobii Pro Glasses 2

Tracker 3.8 lets you directly integrate a Tobii Eye Tracker in your Vicon system, so that you can output eye tracker position and gaze direction, with binocular gaze tracking.

For information about setting up and using Tobii Pro Glasses 2 with Tracker, see Use Tobii Eye Tracker with Vicon Tracker in the Vicon Tracker User Guide.

Apply a manually calculated scaling factor for precise volume scaling

Location: Objects tab > right-click object > Use for Camera Calibration > Calibration Scaling dialog box

After you’ve calibrated the system in the usual way, for maximum real-world accuracy (particularly in large volumes), you can create a large custom calibration object from markers placed across the volume. You can then use this object, coupled with using the Auto Scale option, for subsequent setting of the system origin. This improves calibration stability and consistency over time.

For more information, see Improve volume scaling and set a fixed origin in the Vicon Tracker User Guide.

Automation with the Python API

Tracker includes an Application Programming Interface (API) that enables you to use Python to automate some common functions of Tracker, such as loading, playing and exporting trial or device data, activating or deactivating different objects or triggering parts of the workflow.

For information on how to install and start using the Tracker Python API, see the Vicon Tracker Python API Quick Start Guide.

Open Sound Control integration

Location: System Resources tab > Local Vicon System > Advanced properties > OSC Stream section

Tracker 3.8 enables you to stream data from Tracker over UDP using the Open Sound Control format, so that you can access live data in your OSC server application.

For more information, see OSC Stream section in the Vicon Tracker User Guide.