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.:
Date of Patent:
Nov. 09, 2021
Filed:
Jan. 30, 2020
Applicant:
Avigilon Fortress Corporation, Vancouver, CA;
Inventors:
Khurram Hassan-Shafique, Ashburn, VA (US);
Peter L. Venetianer, McLean, VA (US);
Li Yu, Herndon, VA (US);
Haiying Liu, Chantilly, VA (US);
Assignee:
AVIGILON FORTRESS CORPORATION, Vancouver, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G08B 13/196 (2006.01); G06K 9/62 (2006.01);
U.S. Cl.
CPC ...
G06K 9/00771 (2013.01); G06K 9/62 (2013.01); G06K 9/6267 (2013.01); G08B 13/19602 (2013.01);
Abstract
A sequence of video frames of an area of interest is obtained. A first background model of the area of interest is constructed based on a first parameter. A second background model of the area of interest is constructed based on a second parameter, the second parameter being different from the first parameter. A difference between the first and second background models is determined. A stationary target is determined based on the determined difference. An alert concerning the stationary target is generated.