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:
Jun. 03, 2025
Filed:
Sep. 30, 2022
Applicant:
Axis Ab, Lund, SE;
Inventors:
Björn Völcker, Lund, SE;
Stefan Lundberg, Lund, SE;
Assignee:
AXIS AB, Lund, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01); G08B 13/196 (2006.01);
U.S. Cl.
CPC ...
H04L 63/1466 (2013.01); G08B 13/19634 (2013.01); G08B 13/19667 (2013.01);
Abstract
The present application relates to detecting if video images captured by a camera are depicting a live scene or a recorded video played on a monitor, display or computer screen, which is setup to hide the scene from the camera. Metadata regarding the mapping operation used to transform image data between different intensity ranges, or bit depths, is included with the video and evaluated in order to determine if a video replay attack has taken place.