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:
Nov. 30, 2021
Filed:
Dec. 23, 2019
Applicant:
Cloudminds (Beijing) Technologies Co., Ltd., Beijing, CN;
Inventors:
Assignee:
CLOUDMINDS (BEIJING) TECHNOLOGIES CO., LTD., Beijing, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 7/269 (2017.01); G06T 7/246 (2017.01); G06K 9/62 (2006.01);
U.S. Cl.
CPC ...
G06K 9/00664 (2013.01); G06K 9/6201 (2013.01); G06T 7/248 (2017.01); G06T 7/269 (2017.01);
Abstract
A method for improving robustness of a visual-inertial navigation system includes: determining a reference frame; correcting the reference frame; and performing non-linear optimization for frames other than the reference frame and an oldest frame according to the oldest frame and the corrected reference frame.