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NvidiaPatent applicationCars & transportInterest 6/10

Nvidia patents car camera calibration using projected light targets

Patent drawing
Patent drawing from the official filing.

Nvidia describes a system that projects small light targets onto the inside of a car to help calibrate cameras that monitor passengers. By knowing exactly where the light hits, the system can adjust the camera settings to accurately track where a person is looking.

Why it mattersThis improves the accuracy of in-car monitoring systems, which could help with safety features or personalized driver experiences.

In the filing’s own words

In various examples, systems and method are provided for generation of ground truth gaze data for training in-cabin monitoring systems and applications. A gaze target projector mounted to a known position inside a cabin may be used to project a gaze target onto an interior surface of the cabin. Because a beam of light may be used to produce the projected gaze target, the projected gaze target may be displayed at a projection point on the surface of the cabin interior, even if the surface at the projection point is curved, small, or an irregular shape. Three-dimensional coordinates of a projected gaze target in the cabin coordinate system may be determined and used to label image data that is captured as a projected gaze target is selectively projected onto an interior surface of the cabin and a test occupant's gaze is directed at the projected gaze target.

What exactly they claim (claim 1)

1. A system comprising: one or more processing units to: cause a sequence of gaze targets to be projected over an interior surface of an ego-machine; determine, for each gaze target of the sequence of gaze targets, a position in a three-dimensional (3D) space corresponding to a location of a projection of a respective gaze target; cause, using a sensor integrated within the ego-machine, one or more images of an occupant of an interior space of the ego-machine to be captured while the sequence of gaze targets is projected; and adjust one or more calibration parameters of the sensor based at least on the one or more images and the position of the respective gaze target in the 3D space.

Facts

Company
Nvidia (NVIDIA Corporation)
Official title
IN-CABIN MONITORING SYSTEM SENSOR CALIBRATION
Publication number
US20260301433A1
Application number
19697269
Filed
Jun 3, 2026
Published
Oct 1, 2026
Inventors
6
Claims
20

Classified under

G06V 20/597 Physics & computingB60W 40/08 Operations & transportG06F 3/013 Physics & computing
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.