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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.

Patent No.:

US 12450898 B1

PDFFull Text
Date of Patent:
Oct. 21, 2025

Filed:

Feb. 23, 2023

Systems and methods for identifying lights sources at an airport

Applicant:

Honeywell International Inc., Charlotte, NC (US);

Inventors:

Debabrata Pal, Bangalore, IN;

Abhishek Alladi, Hyderabad, IN;

Anvita Singh, Hyderbad, IN;

Assignee:

HONEYWELL INTERNATIONAL INC., Charlotte, NC (US);

Attorney:

Ingrassia Fisher & Lorenz, LLP

Primary Examiner:

Gandhi Thirugnanam

Assistant Examiner:

Connor L Hansen

Int. Cl.
CPC ...
G06V 20/17 (2022.01); B64F 1/00 (2024.01); G06T 7/50 (2017.01); G06T 7/70 (2017.01); G06V 10/25 (2022.01); G06V 10/50 (2022.01); G06V 10/56 (2022.01); G06V 10/60 (2022.01); G06V 20/58 (2022.01);
U.S. Cl.
CPC ...
G06V 20/17 (2022.01); B64F 1/002 (2013.01); G06T 7/50 (2017.01); G06T 7/70 (2017.01); G06V 10/25 (2022.01); G06V 10/507 (2022.01); G06V 10/56 (2022.01); G06V 10/60 (2022.01); G06V 20/584 (2022.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/30252 (2013.01);
Abstract

Systems and methods are provided for identifying light sources at an airport. Light sources are detected in a vehicle camera image. A region of interest (ROI) is determined for each light source based on the location of the light source in the image. A distance and relative angle are determined between each light source and a vehicle camera location. A gray scale version of each ROI is generated based on pre-defined relationships between intensities of red, green, and blue colors in the image and gray color intensities. The gray scale version is compared with pre-defined color histograms to determine a color associated with each light source. Each histogram corresponds to a gray-scale equivalent of an associated color. Context data associated with the image is determined. A light source type is assigned to each of the light sources based on the color of the light source and the context data.

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