公开(公告)号：US12147596B1

公开(公告)日：2024-11-19

申请号：US17896679

申请日：2022-08-26

Applicant: Meta Platforms Technologies, LLC

Inventor： Qing Chao ,  Robert Dale Cavin ,  Guillaume Lestoquoy ,  Mohammadhossein Daraeihajitooei ,  Xinqiao Liu ,  Raffaele Capoccia ,  Sascha Hallstein ,  Ziyun Li

IPC: G06F3/01 ,  G06T7/73 ,  G06V10/25 ,  G06V10/60 ,  G06V40/18 ,  H04N5/33

Abstract: An eyebox region is illuminated with a fringe illumination pattern. An event sensor is configured to generate event-signals. Eye motion is determined from the event-signals. Eye-features are extracted from data generated by the event sensors and a predicted gaze vector is generated from the eye-features.

公开(公告)号：US20240118423A1

公开(公告)日：2024-04-11

申请号：US18484762

申请日：2023-10-11

Applicant: Meta Platforms Technologies, LLC

Inventor： Onur Can Akkaya ,  Song Chen ,  Xinqiao Liu ,  Andrew Samuel Berkovich ,  Tsung-Hsun Tsai ,  Yi Zheng ,  Raffaele Capoccia

IPC: G01S17/894 ,  G01S7/487 ,  G01S17/42

CPC classification number: G01S17/894 ,  G01S7/4873 ,  G01S17/42

Abstract: A projector sequentially generates light pulses to form a sparse grid array. The light pulses reflect off objects in an environment and are reflected towards a sensor array. The sensor array sequentially senses the reflected light pulses across pixels of the sensor array. A depth sensing system calculates depth information of objects in the environment based on the sequential nature of the pulse generation and the pulse sensing. The depth sensing system calculates depth information based on both the positional and temporal information of generated light pulses, and the positional and temporal information of sensed light pulses. The depth sensing system may generate a representation of the environment based on the depth information.

公开(公告)号：US20250028389A1

公开(公告)日：2025-01-23

申请号：US18909167

申请日：2024-10-08

Applicant: Meta Platforms Technologies, LLC

Inventor： Qing Chao ,  Robert Dale Cavin ,  Guillaume Lestoquoy ,  Mohammadhossein Daraeihajitooei ,  Xinqiao Liu ,  Raffaele Capoccia ,  Sascha Hallstein ,  Ziyun Li

IPC: G06F3/01 ,  G06T7/73 ,  G06V10/25 ,  G06V10/60 ,  G06V40/18 ,  H04N5/33

Abstract: Imaging signals are generated in response to image light. Event signals are generated in response to receive the imaging signals from imaging pixels. A Region of Interest (ROI) of the imaging pixels is identified from a spatial concentration of event signals in the ROI of imaging pixels within a time period. An ROI portion of the imaging pixels in the ROI are driven to capture an ROI image frame.