公开(公告)号：US11861941B1

公开(公告)日：2024-01-02

申请号：US16779297

申请日：2020-01-31

Applicant: Apple Inc.

Inventor： Keenan Molner ,  Qiong Huang ,  Branko Petljanski ,  Edward A. Valko ,  Tom Sengelaub ,  Martin Haller ,  Andrei Nikiforov ,  Hua Gao ,  Emanuele Mandelli

IPC: G06V40/19 ,  G02B27/01 ,  G02B5/30 ,  G06V40/18 ,  H01L31/0203 ,  H01L31/0216

CPC classification number: G06V40/19 ,  G02B5/3025 ,  G02B27/0172 ,  G06V40/18 ,  G02B2027/0161 ,  G02B2027/0178 ,  H01L31/0203 ,  H01L31/0216

Abstract: Methods and apparatus for using polarized light (e.g., infrared (IR) light) to improve eye-related functions such as iris recognition. An eye camera system includes one or more IR cameras that capture images of the user's eyes that are processed to perform iris recognition, gaze tracking, or other functions. At least one polarizing element may be located in the path of the light which is used to capture images of the user's eye. The user's eye may be illuminated by IR light emitted by one or more LEDs. At least one of the LEDs may be an LED with a polarizing filter. Instead or in addition, at least one polarizer may be located at the eye camera sensor, in the eye camera optics, or as or in an additional optical element located on the light path between the eye camera and the user's eye.

公开(公告)号：US20230377194A1

公开(公告)日：2023-11-23

申请号：US18196756

申请日：2023-05-12

Applicant: Apple Inc.

Inventor： Hao Qin ,  Chia-Yin Tsai ,  Tom Sengelaub ,  Hua Gao ,  Jie Zhong

IPC: G06T7/73

CPC classification number: G06T7/74 ,  G06T2207/10048 ,  G06T2207/30201

Abstract: Various implementations disclosed herein include an inconspicuous eye enrollment for user devices through the simultaneous or near-simultaneous eye characteristic tracking and eye model updating. The implementations disclosed herein direct light towards an eye of a user to produce glint reflections and obtain, via one or more sensors, image frames comprising depictions of the glint reflections. Based on those image frames, the implementations disclosed herein track eye characteristics and update an eye model of the eye during a period of time between obtaining a first image frame of the image frames and obtaining a second image frame of the image frames.

公开(公告)号：US20230315201A1

公开(公告)日：2023-10-05

申请号：US18145828

申请日：2022-12-22

Applicant: Apple Inc.

Inventor： Tom Sengelaub ,  Emanuele Mandelli ,  Aleksandr M Movshovich ,  Martin Haller ,  Hao Qin ,  Hua Gao

IPC: G06F3/01 ,  G06V10/141 ,  G06V10/60 ,  G02B27/01 ,  G06T5/50

CPC classification number: G06F3/013 ,  G02B27/0172 ,  G06T5/50 ,  G06V10/141 ,  G06V10/60 ,  G06T2207/20221

Abstract: Methods and apparatus for stray light mitigation in optical systems that include two or more illumination sources (e.g., point light sources such as light-emitting diodes (LEDs)) that illuminate an object to be imaged, and a camera configured to capture images of light from the point light sources reflected by the object when illuminated. To mitigate “occlusions” or artifacts caused by, for example, stray light or reflections of the illumination sources off of other components of the system, multiple images of the object are captured with different groups of the illumination sources enabled. The captured images can then be processed and merged to generate an output image with the occlusions or artifacts caused by stray light or reflections mitigated or eliminated.

公开(公告)号：US11170212B2

公开(公告)日：2021-11-09

申请号：US16570389

申请日：2019-09-13

Applicant: Apple Inc.

Inventor： Tom Sengelaub ,  Hua Gao ,  Hao Qin ,  Julia Benndorf

IPC: G06F3/01 ,  G06K9/00 ,  G06T7/73 ,  G06T7/50 ,  G06T7/90

Abstract: Some implementations of the disclosure involve, at a device having one or more processors, one or more image sensors, and an illumination source, detecting a first attribute of an eye based on pixel differences associated with different wavelengths of light in a first image of the eye. These implementations next determine a first location associated with the first attribute in a three dimensional (3D) coordinate system based on depth information from a depth sensor. Various implementations detect a second attribute of the eye based on a glint resulting from light of the illumination source reflecting off a cornea of the eye. These implementations next determine a second location associated with the second attribute in the 3D coordinate system based on the depth information from the depth sensor, and determine a gaze direction in the 3D coordinate system based on the first location and the second location.