公开(公告)号：US11587210B1

公开(公告)日：2023-02-21

申请号：US16816023

申请日：2020-03-11

Applicant: Meta Platforms Technologies, LLC

Inventor： Yu Fan Chen ,  Kiran Kumar Somasundaram ,  Steven John Lovegrove ,  Yujun Shen

IPC: G06T5/00 ,  G06T7/11 ,  G06N20/00 ,  G06T3/00 ,  G06T7/80

Abstract: In one embodiment, a method includes a computer system accessing a curvilinear image captured using a camera lens, generating multiple rectilinear images from the curvilinear image based at least in part on one or more calibration parameters associated with the camera lens, identifying semantic information in one or more of the rectilinear images by processing each of the multiple rectilinear images using a machine-learning model configured to identify semantic information in rectilinear images, and identifying semantic information in the curvilinear image based on the identified semantic information in the one or more rectilinear images.

公开(公告)号：US11762080B2

公开(公告)日：2023-09-19

申请号：US17109724

申请日：2020-12-02

Applicant: Meta Platforms Technologies, LLC

Inventor： Minh Phuoc Vo ,  Kiran Kumar Somasundaram ,  Steven John Lovegrove

IPC: G01S13/52 ,  G01S13/04 ,  G01S13/00 ,  G01S13/46 ,  G01S7/41 ,  H04W56/00 ,  H04W84/12

CPC classification number: G01S13/52 ,  G01S7/415 ,  G01S13/003 ,  G01S13/04 ,  H04W56/0055 ,  H04W84/12 ,  G01S2013/462

Abstract: A method includes receiving a first wireless signal detected by a first device in an environment, the first wireless signal including a first distortion pattern caused by an object moving in the environment, receiving a second wireless signal detected by a second device in the environment, the second wireless signal including a second distortion pattern caused by the object moving in the environment, determining, by comparing the first distortion pattern to the second distortion pattern, that the first distortion pattern and the second distortion pattern correspond to a same movement event associated with the object moving in the environment, determining a timing offset between the first device and the second device based on information associated with the first distortion pattern and the second distortion pattern, and determining, based on the timing offset, temporal correspondences between data generated by the first device and data generated by the second device.