公开(公告)号：US11698258B1

公开(公告)日：2023-07-11

申请号：US17200569

申请日：2021-03-12

Applicant: Apple Inc.

Inventor： Arthur Y. Zhang ,  Sonca Teng

IPC: G01C21/16 ,  G06T7/246

CPC classification number: G01C21/165 ,  G06T7/248 ,  G06T2207/30252

Abstract: Methods and systems for relative inertial measurement may include a user device comprising an inertial measurement device and/or a camera. A second inertial measurement device may be configured to move with a reference frame. One or more processors may receive inertial measurements from the first and second inertial measurement devices and determine movement of the user device relative to the reference frame by comparing the received inertial measurements. Additionally reference objects in a view of a camera may be used to calibrate the determined motion of the user device within the reference frame.

公开(公告)号：US10948299B1

公开(公告)日：2021-03-16

申请号：US16145086

申请日：2018-09-27

Applicant: Apple Inc.

Inventor： Arthur Y. Zhang ,  Sonca Teng

IPC: G01C21/16 ,  G06T7/246

Abstract: Methods and systems for relative inertial measurement may include a user device comprising an inertial measurement device and/or a camera. A second inertial measurement device may be configured to move with a reference frame. One or more processors may receive inertial measurements from the first and second inertial measurement devices and determine movement of the user device relative to the reference frame by comparing the received inertial measurements. Additionally reference objects in a view of a camera may be used to calibrate the determined motion of the user device within the reference frame.

公开(公告)号：US20230296383A1

公开(公告)日：2023-09-21

申请号：US18321126

申请日：2023-05-22

Applicant: Apple Inc.

Inventor： Arthur Y. Zhang ,  Sonca Teng

IPC: G01C21/16 ,  G06T7/246

CPC classification number: G01C21/165 ,  G06T7/248 ,  G06T2207/30252

Abstract: Methods and systems for relative inertial measurement may include a user device comprising an inertial measurement device and/or a camera. A second inertial measurement device may be configured to move with a reference frame. One or more processors may receive inertial measurements from the first and second inertial measurement devices and determine movement of the user device relative to the reference frame by comparing the received inertial measurements. Additionally reference objects in a view of a camera may be used to calibrate the determined motion of the user device within the reference frame.