公开(公告)号：US11972042B2

公开(公告)日：2024-04-30

申请号：US17348551

申请日：2021-06-15

Applicant: Microsoft Technology Licensing, LLC

Inventor： Benjamin Eliot Lundell ,  David C Rohn ,  Curtis Alan Tesdahl ,  Marko Bezulj ,  Christopher Charles Aholt ,  Navid Poulad

IPC: G06F3/01 ,  G02B27/00 ,  G02B27/01

CPC classification number: G06F3/013 ,  G02B27/0093 ,  G02B27/0172 ,  G02B2027/0187

Abstract: A gaze detection assembly comprises a plurality of infrared (IR) light emitters configured to emit IR light toward a user eye and an IR camera configured to sequentially capture IR images of the user eye. A controller is configured to, during a reference frame, control the plurality of IR light emitters to emit IR light toward the user eye with a reference intensity distribution. During the reference frame, an IR image is captured depicting a first glint distribution on the user eye. Based at least in part on the first glint distribution, during a subsequent frame, the plurality of IR light emitters are controlled to emit IR light toward the user eye with a subsequent intensity distribution, different than the reference intensity distribution. During the subsequent frame, a second IR image is captured depicting a second glint distribution on the user eye.