head angle limits

[Stolzenwald]

Hi,
searching this forum did not answer the following question:
for the Eye Tracker 4C, what is the average head angle tolerance and (eye) angular accuracy?

[Grant [Tobii]]

Hi @jaay, I can tell you that the gaze accuracy is a nominal 0.6 degrees assuming high quality calibration and well placed within the tracking area. Whilst not explicity stated for the C4, there is a whitepaper you can read on the accuracy of the EyeX which is somewhat similar (tho inferior in many ways) to the C4 @ http://link.springer.com/article/10.3758/s13428-016-0762-9

There is for the time being, no established quantified metrics for head angle tolerance.

[Author]

Posts