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:
Jul. 14, 2026

Filed:

Sep. 26, 2022
Applicant:

Nvidia Corporation, Santa Clara, CA (US);

Inventors:

Yuzhuo Ren, Sunnyvale, CA (US);

Hairong Jiang, Campbell, CA (US);

Niranjan Avadhanam, Saratoga, CA (US);

Varsha Chandrashekhar Hedau, Sunnyvale, CA (US);

Assignee:

NVIDIA Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06V 20/59 (2022.01); G06F 3/01 (2006.01); G06T 3/20 (2006.01); G06T 3/60 (2024.01); G06T 7/70 (2017.01); G06T 7/80 (2017.01); G06V 10/82 (2022.01);
U.S. Cl.
CPC ...
G06V 20/59 (2022.01); G06F 3/013 (2013.01); G06T 3/20 (2013.01); G06T 3/60 (2013.01); G06T 7/70 (2017.01); G06T 7/80 (2017.01); G06V 10/82 (2022.01); G06T 2207/30204 (2013.01); G06T 2207/30268 (2013.01);
Abstract

In various examples, sensor parameter calibration techniques for in-cabin monitoring systems and applications are presented. An occupant monitoring system (OMS) is an example of a system that may be used within a vehicle or machine cabin to perform real-time assessments of driver and occupant presence, gaze, alertness, and/or other conditions. In some embodiments, a calibration parameter for an interior image sensor is determined so that the coordinates of features detected in 2D captured images may be referenced to an in-cabin 3D coordinate system. In some embodiments, a processing unit may detect fiducial points using an image of an interior space captured by a sensor, determine a 2D image coordinate for a fiducial point using the image, determine a 3D coordinate for the fiducial point, determine a calibration parameter comprising a rotation-translation transform from the 2D image coordinate and the 3D coordinate, and configure an operation based on the calibration parameter.


Find Patent Forward Citations

Quick Actions:

Ren, Yuzhuo. (2026). Sensor calibration using fiducial markers for in-cabin monitoring systems and applications (U.S. Patent No. 12682661). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12682661

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