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 9846810 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 19, 2017

Filed:

Apr. 29, 2014
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Ashley John Partis, New South Wales, AU;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 7/20 (2017.01); G06K 9/62 (2006.01); G06K 9/32 (2006.01);
U.S. Cl.
CPC ...
G06K 9/00771 (2013.01); G06K 9/00778 (2013.01); G06K 9/6296 (2013.01); G06T 7/20 (2013.01); G06K 2009/3291 (2013.01); G06T 2207/20072 (2013.01); G06T 2207/30196 (2013.01); G06T 2207/30241 (2013.01);
Abstract

A method of tracking objects of a scene is disclosed. The method determines two or more tracks which have merged. Each track is associated with at least one of the objects and having a corresponding graph structure. Each graph structure comprising at least one node representing the corresponding track. A new node representing the merged tracks is created. The graph structures are added as children nodes of the new node to create a merged graph structure. A split between the objects associated with one of the tracks represented by the nodes of the merged graph structure is determined. Similarity between one or more of the nodes in the merged graph structure and foreground areas corresponding to split objects is determined. One of the nodes in the merged graph structure is selected based on the determined similarity. A new graph structure for tracking the objects is created, the new graph structure having the selected node at the root of the new graph structure.


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