[Peter]

Hey @Grant, appreciate the rapid reply very much! Currently I am using Tobii 4Cs with a Professional license. What I intend to do is compare precision and accuracy of the gaze data before and after a session so that I can make an informed decision as to wether to trust logged data. From how I understand the Tobii Pro SDK documentation regarding calibration, the relevant data does get exposed. How would you recommend integrating that functionality into a Unity application?

[Peter]

I appreciate the clarification and hope you do not mind me digging deeper: How do you define ‘centre of the tracked head’ physiologically speaking (glabella/ nasion/ center of gravity/ something else)?

The reason I ask is that I am using the provided data to retarget users’ head movements to an avatar. What I aim to do is represent the head movement as realistically as possible. To not add a systematic error when displaying tracked head movement, the 3d model’s head would need to be translated and turned around the correct pivot point.

[Peter]

Thank you for the helpful illustration.
Which point of a user’s head does the data provided in the HeadPose stream resemble? Is it the center point between the eyes?

[Peter]

This is great to hear! Thanks for your helpful response, Grant.
Are you allowed to disclose the current status of said accuracy quantification integration to the Pro SDK?

[Peter]

Hey there,

Do you have any updates on adding head tracking to the SDK? I’d greatly appreciate it being added.
Head Tracking Support was one of the reasons to buy the 4C and it is listed as available feature in the specifications.

[Author]

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