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. 19, 2024

Filed:

Oct. 28, 2021
Applicant:

Nvidia Corporation, Santa Clara, CA (US);

Inventors:

Kang Wang, Bellevue, WA (US);

Yue Wu, Mountain View, CA (US);

Minwoo Park, Saratoga, CA (US);

Gang Pan, Fremont, CA (US);

Assignee:

NVIDIA Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60W 60/00 (2020.01); B60W 40/06 (2012.01); B60W 40/105 (2012.01); G06V 20/58 (2022.01);
U.S. Cl.
CPC ...
B60W 60/001 (2020.02); B60W 40/06 (2013.01); B60W 40/105 (2013.01); G06V 20/58 (2022.01); B60W 2420/403 (2013.01); B60W 2552/20 (2020.02);
Abstract

In various examples, a 3D surface structure such as the 3D surface structure of a road (3D road surface) may be observed and estimated to generate a 3D point cloud or other representation of the 3D surface structure. Since the representation may be sparse, one or more densification techniques may be applied to densify the representation of the 3D surface structure. For example, the relationship between sparse and dense projection images (e.g., 2D height maps) may be modeled with a Markov random field, and Maximum a Posterior (MAP) inference may be performed using a corresponding joint probability distribution to estimate the most likely dense values given the sparse values. The resulting dense representation of the 3D surface structure may be provided to an autonomous vehicle drive stack to enable safe and comfortable planning and control of the autonomous vehicle.


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