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:
Apr. 14, 2026

Filed:

May. 30, 2024
Applicant:

Axis Ab, Lund, SE;

Inventors:

Ludvig Hassbring, Lund, SE;

Song Yuan, Lund, SE;

Assignee:

AXIS AB, Lund, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 5/50 (2006.01); G06T 7/194 (2017.01); G06T 7/20 (2017.01); G06V 10/762 (2022.01); H04N 5/272 (2006.01);
U.S. Cl.
CPC ...
G06T 5/50 (2013.01); G06T 7/194 (2017.01); G06T 7/20 (2013.01); G06V 10/762 (2022.01); H04N 5/272 (2013.01); G06T 2207/20221 (2013.01); G06V 2201/07 (2022.01);
Abstract

The present disclosure relates to a method of background modelling for a video stream acquired by a camera having movement capabilities. The method comprises: acquiring a video stream; repeatedly updating a background model for the video stream by analyzing changes in the sequence of image frames and categorizing image areas in the image frames which do not change over time as background; detecting camera movement; performing a reset of the background model by: applying an image segmentation and/or object detection algorithm to identify at least foreground objects; after having performed the reset of the background model, returning to repeatedly updating the background model for the video stream by analyzing changes in the sequence of image frames and categorizing image areas in the image frames which do not change over time as background. The disclosure further relates to an image processing system.


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