ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,527,474, issued on Jan. 20, was assigned to Tobii AB (Danderyd, Sweden).
"System and method for determining reference gaze data" was invented by Henrik Andersson (Danderyd, Sweden) and Deepak Akkil (Danderyd, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention is related to an eye tracking system for determining reference gaze data of a user in a scene exposing a pupil of the user. The eye tracking system comprising processing circuitry configured to obtain a first eye image comprising the pupil of the user, the first eye image being captured during a first time period; determine, based on the first eye image, a first pupil size; obtain ...