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. 10, 2018

Filed:

Jul. 07, 2015
Applicant:

Agt International Gmbh, Zurich, CH;

Inventors:

Markus Schlattmann, Griesheim, DE;

Stefan Diener, Muenster, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/44 (2011.01); H04N 5/04 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
H04N 5/04 (2013.01); G06K 9/00758 (2013.01); G06K 9/00785 (2013.01); H04N 5/44 (2013.01);
Abstract

A method for automatically matching video streams from two cameras of a camera network includes obtaining a video stream of frames that are acquired by each of the cameras. Each video stream includes images of moving objects. A time signature for each of the video streams is calculated. Each time signature is indicative of a time at which an image of one the objects is located at a predetermined part of the frame. A temporal offset of one of the signatures relative to the other signature is calculated such that, when applied to one of the signatures, a correspondence between the signatures is maximized. The temporal offset is applicable to video streams that are acquired by the two cameras to determine if a moving object that is imaged by one of the cameras is identical to a moving object that is imaged by the other camera.


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