公开(公告)号：US20240104889A1

公开(公告)日：2024-03-28

申请号：US18469670

申请日：2023-09-19

Applicant: Apple Inc.

Inventor： Alper Yildirim ,  Chia-Yin Tsai ,  Hao Qin ,  Hua Gao ,  Tom Sengelaub ,  Martin Subert ,  Petr Bour

IPC: G06V10/60 ,  G06V10/25 ,  G06V10/74 ,  G06V10/75

CPC classification number: G06V10/60 ,  G06V10/25 ,  G06V10/758 ,  G06V10/761 ,  G06V2201/07

Abstract: A system for detecting a proximate object includes one or more cameras and one or more illuminators. The proximate object is detected by obtaining image data captured by the one or more cameras, where the image data is captured when at least one of the one or more illuminators are illuminated, determining brightness statistics from the image data, and determining whether the brightness statistics satisfies a predetermined threshold. The proximate object is determined to be detected in accordance with a determination that the brightness statistics satisfies the predetermined threshold.

公开(公告)号：US20240105046A1

公开(公告)日：2024-03-28

申请号：US18470748

申请日：2023-09-20

Applicant: Apple Inc.

Inventor： Chia-Yin Tsai ,  Kai Benjamin Quack ,  Hua Gao ,  Tom Sengelaub ,  Alper Yildirim

IPC: G08B21/18 ,  G02B27/01 ,  G06F3/01 ,  G06T7/70

CPC classification number: G08B21/182 ,  G02B27/0172 ,  G06F3/013 ,  G06T7/70

Abstract: Systems and methods are disclosed to enable performance of a lens distance test in head-mounted displays (HMDs) to determine the distance between a user's eye and a lens of the HMD (e.g. the display lens in a virtual or augmented reality device). In embodiments, the HMD is configured to determine a current pose of the eye based on a series of captured eye images. The pose information is used to determine the distance from the apex of the cornea to a closest point on the lens. If the determined distance is too small or too large, an alert or notification is generated instructing to adjust the HMD or change the light seal to achieve better distancing, in order to reduce the risk of eye injury and/or improve user experience. In embodiments, the lens distance test may be repeated during a user session to reevaluate and/or monitor the lens distance.

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：US20240272709A1

公开(公告)日：2024-08-15

申请号：US18568256

申请日：2022-06-08

Applicant: Apple Inc.

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

IPC: G06F3/01

CPC classification number: G06F3/013

Abstract: Methods and apparatus for generating user-aware eye models. During an enrollment process, images of a user's eye are captured by one or more cameras when the eye is in two or more different orientations and at two or more different levels of display brightness. The captured images are processed to generate a 3-dimensional, user-aware eye model, for example a model of at least the eye's cornea and pupil features. The generated user-aware eye model may be used in other processes, for example in a gaze tracking process. The enrollment process may be an iterative process to optimize the eye model, or a continuous process performed while the user is using the system.