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:
Oct. 16, 2001
Filed:
Apr. 15, 1998
Sang-ug Kang, Suwon, KR;
Samsung Electronics Co., Ltd., Kyungki-Do, KR;
Abstract
A block matching method using a moving target window is provided. The method includes the steps of (a) selecting a reference block Bm from a current frame Fn, by dividing the current frame Fn into blocks of a predetermined size, (b) determining the center point of a target window Wm for estimating a motion, obtained by dividing a previous frame F,by a predetermined size, to be the center point (X,,Y,) of the reference block Bm, (c) obtaining a motion vector (Dxn, Dyn) with respect to the reference block Bm, using the target window, (d) selecting the next reference block B,following the reference block Bm, the center point coordinates of which are (X,, Yn) in the current frame Fn, (e) determining whether the current frame Fn has a complicated motion, (f) obtaining a motion vector value using a predetermined general block matching method, when the current frame Fn has a complicated motion, (g) determining the center of a target window WW,for estimating the motion, corresponding to the B,in the previous frame F,, to be (X,+Dxn, Yn+Dyn), when the current frame Fn does not have a complicated motion, (h) determining whether the target window WW,is within the boundary of the previous frame F,, (i) obtaining a motion vector (DDxn+1, DDYn), when the target window WW,is within the boundary of the previous frame F,, (j) obtaining a motion vector (DD,, DDyn) after limiting the center of the target window WW,to be within the boundary of the previous frame F,, when the target window WW,is not within the boundary of the previous frame F,, and (k) performing the steps (d) through (i) with respect to all the blocks of the current frame.