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Grant [Tobii]

Hi @sappelhoff, I am afraid we are unable to divulge the specific algorithms in place by our eye trackers between the image being captured and raw gaze data returned to user. However, the raw data as supplied in the SDK is given with a corresponding time stamp and no filters per se have been applied.

Perhaps of interest to you is this paper which was written for the EyeX but should still provide a reasonable description for your own needs: