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.

Date of Patent:
Nov. 25, 2025

Filed:

Aug. 17, 2022
Applicant:

GM Cruise Holdings Llc, San Francisco, CA (US);

Inventors:

Zhanping Xu, Sunnyvale, CA (US);

Kartheek Chandu, Dublin, CA (US);

Glenn D. Sweeney, Sebastopol, CA (US);

Robert Vets, Seattle, WA (US);

Assignee:

GM CRUISE HOLDINGS LLC, San Francisco, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T 7/70 (2017.01); B60W 60/00 (2020.01); G06T 7/20 (2017.01);
U.S. Cl.
CPC ...
G06T 7/70 (2017.01); G06T 7/20 (2013.01); B60W 60/00 (2020.02); B60W 2420/403 (2013.01); B60W 2520/16 (2013.01); B60W 2520/18 (2013.01); G06T 2207/10028 (2013.01); G06T 2207/30252 (2013.01);
Abstract

Aspects of the subject technology relate to systems, methods, and computer-readable media for identifying roll, pitch, and azimuth angles for an object based on surface normal vectors. Image data tracking a surface as an object moves relative to the surface can be accessed. A reference normal vector of the surface can be identified. A dynamic normal vector of the surface associated with the object moving over the surface can be identified from the image data. One or a combination of roll, pitch, and azimuth of the object with respect to the surface can be determined based on the reference normal vector and the dynamic normal vector.


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