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:
Jan. 06, 2015
Filed:
Nov. 22, 2011
Naoto Kimura, Kawasaki, JP;
Naoto Kimura, Kawasaki, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
An object tracking device capable of accurately tracking an object as a tracking target. The device receives an image signal having a plurality of frame images and tracks a specific object in the image signal. The device sets a predetermined number of small areas in a reference area indicative of an area where an image of the object is formed in the preceding frame image. The object tracking device detects a motion vector of the object in each of the small areas, and determines a change of the object according to the motion vector to thereby obtain shape change information. The device corrects the location and size of the reference area according to the shape change information to thereby correct the reference area to a corrected reference area, and tracks the object using the corrected reference area.