The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 2021
Filed:
Jun. 01, 2018
Alibaba Technology (Israel) Ltd., Herzliya, IL;
Matan Protter, Kiryat Ono, IL;
Motti Kushnir, Kiryat Ono, IL;
ALIBABA TECHNOLOGIES (ISRAEL) LTD., Herzliya, IL;
Abstract
A method and a system for calibrating an inertial measurement unit (IMU) via images of a calibration target are provided herein. The method may include: measuring parameters via an IMU; capturing a plurality of calibration images of a scene that contains at least one calibration target, wherein the calibration images are taken from different locations and/or orientations, wherein each of the calibration images shares a common calibration target with at least one other calibration image; calculating, based on the at least one common calibration target, a position and orientation of the sensing device relative to the calibration target, for each location of the capturing of the calibration images; and calibrating the IMU by comparing relative motion between two of the calibration images based on the calculated relative position and orientation, to measurements of the parameters taken by the IMU in time ranges corresponding to the at least two calibration images.