US 12,443,275 B2
Eye tracking system and methods of using an eye tracking system
Paul Jones Winlund, Danderyd (SE); Morgan Viktorsson, Danderyd (SE); and Theresia Hansson, Danderyd (SE)
Assigned to Tobii AB, Danderyd (SE)
Filed by TOBII AB, Danderyd (SE)
Filed on Apr. 30, 2024, as Appl. No. 18/650,302.
Claims priority of application No. 2350526-6 (SE), filed on May 2, 2023.
Prior Publication US 2024/0370084 A1, Nov. 7, 2024
Int. Cl. G06F 3/01 (2006.01); A63F 13/213 (2014.01); G06F 3/0485 (2022.01)
CPC G06F 3/013 (2013.01) [A63F 13/213 (2014.09); G06F 3/012 (2013.01); G06F 3/0485 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of operating an eye tracking system to present a portion of displayable content to a user on a display screen, wherein the displayable content covers a range of relative angles, and wherein the method comprises:
receiving a head-pose-signal that represents an angle of the user's head relative to the display screen;
receiving a gaze-signal that represents a position on the display screen that intersects with a gaze direction of the user;
using the head-pose-signal to determine a sub-range of the relative angles of the displayable content;
causing the display screen to present a portion of the displayable content to the user based on the determined sub-range of relative angles; and
upon detecting that the gaze-signal represents a trigger location on the display screen:
calculating a glance-induced offset based on the position of the trigger location;
applying the glance-induced offset to the determined sub-range of relative angles to calculate an offsetted-sub-range of relative angles; and
causing the display screen to present a portion of the displayable content to the user based on the calculated offsetted
wherein: the displayable content covers a first range of relative angles in a first dimension and a second range of relative angles in a second dimension; and
the method comprises:
using the head-pose-signal to determine: a first sub-range of the relative angles of the displayable content in the first dimension; and a second sub-range of the relative angles of the displayable content in the second dimension; and
upon detecting that the gaze-signal represents the trigger location on the display screen, the method comprises:
calculating a glance-induced offset angle based on the position of the trigger location in relation to a substantially central region of the display screen;
determining a two-dimensional glance-induced offset value based on the glance-induced offset angle;
applying the two-dimensional glance-induced offset value to the determined first and second sub-range of relative angles to calculate respective first and second offsetted-sub-ranges of relative angles; and
causing the display screen to present a portion of the displayable content to the user based on the calculated first and second offsetted-sub-ranges of relative angles.