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:
Jun. 21, 2022

Filed:

Jun. 25, 2020
Applicant:

Deepmap Inc., Palo Alto, CA (US);

Inventors:

Ronghua Zhang, Campbell, CA (US);

Derik Schroeter, Fremont, CA (US);

Mengxi Wu, Mountain View, CA (US);

Di Zeng, Sunnyvale, CA (US);

Assignee:

NVIDIA CORPORATION, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 7/521 (2017.01); G01C 21/32 (2006.01); G06T 7/73 (2017.01); G01S 17/89 (2020.01);
U.S. Cl.
CPC ...
G06T 7/521 (2017.01); G01C 21/32 (2013.01); G01S 17/89 (2013.01); G06T 7/73 (2017.01);
Abstract

Operations may comprise obtaining a plurality of light detection and ranging (LIDAR) scans of a region. The operations may also comprise identifying a plurality of LIDAR poses that correspond to the plurality of LIDAR scans. In addition, the operations may comprise identifying, as a plurality of keyframes, a plurality of images of the region that are captured during capturing of the plurality of LIDAR scans. The operations may also comprise determining, based on the plurality of LIDAR poses, a plurality of camera poses that correspond to the keyframes. Further, the operations may comprise identifying a plurality of two-dimensional (2D) keypoints in the keyframes. The operations also may comprise generating one or more three-dimensional (3D) keypoints based on the plurality of 2D keypoints and the respective camera poses of the plurality of keyframes.


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