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:
May. 15, 2001
Filed:
Jun. 11, 1998
In-seo Chun, Suwon, KR;
Samsung Thomson-CSF Co., Ltd., Kumi, KR;
Abstract
In a target tracking method employing a block matching algorithm, pixels commonly included in target, background or foreground areas in consecutive frames are excluded from the calculation and only pixels in transition are taken into account. First, a first rectangular gate substantially including a target to be tracked is formed in an image of a first frame. Also, a second rectangular gate is formed in an image of a second frame temporally sequential to the first frame. Then, pixels commonly included in moving regions in the first and second rectangular gates are discriminated and a block matching level between the first and second rectangular gates is calculated by using only pixels of the moving region. Afterwards, the second rectangular gate is changed in a predetermined area, and the block matching level is calculated. Subsequently, the block matching level values are compared to determine a second rectangular gate which results in a maximum block matching level value, and a positional difference between the first rectangular gate and the second rectangular gate resulting in the maximum block matching level value is determined as a movement vector of the target.