公开(公告)号：US20230333642A1

公开(公告)日：2023-10-19

申请号：US18115974

申请日：2023-03-01

Applicant: Apple Inc.

Inventor： Anshu K. Chimalamarri ,  Bryce L. Schmidtchen ,  Gregory Lutter

IPC: G06F3/01 ,  G06T7/20 ,  G06V10/46 ,  G06V10/56 ,  G06V40/18

CPC classification number: G06F3/013 ,  G06T7/20 ,  G06V10/462 ,  G06V10/56 ,  G06V40/193

Abstract: A method includes displaying a plurality of visual elements. The method includes determining, based on respective characteristic values of the plurality of visual elements, an expected gaze target that indicates a first display region where a user of the device intends to gaze while the plurality of visual elements is being displayed. The method includes obtaining, via the image sensor, an image that includes a set of pixels corresponding to a pupil of the user of the device. The method includes determining, by a gaze tracker, based on the set of pixels corresponding to the pupil, a measured gaze target that indicates a second display region where the user is measuredly gazing. The method includes adjusting a calibration parameter of the gaze tracker based on a difference between the first display region indicated by the expected gaze target and the second display region indicated by the measured gaze target.