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. 20, 1998
Filed:
Jul. 05, 1995
Min-Sup Lee, Seoul, KR;
Daewoo Electronics Co., Ltd., Seoul, KR;
Abstract
A method for determining a set of motion vectors between a current frame and a reference frame of video signals, which comprises the steps of: (a) one dimensionally comparing a search block from the current frame with said plurality of candidate blocks included in a search region corresponding to the search block, on a block-by-block basis, by employing a one-dimensional error function using horizontal and vertical integral projections to select a predetermined number of candidate blocks in an ascending order of the one-dimensional error; (b) two dimensionally comparing the search block with the predetermined number of candidate blocks selected in step(a) above, on a block-by-block basis, by employing a two-dimensional error function to thereby select a most similar candidate block and derive a motion vector representing the displacement of pixels between the search block and the most similar candidate block so as to assign the derived motion vector as the motion vector for the search block; and (c) repeating steps (a) and (b) until all of the search blocks constituting the current frame are searched against the entire reference frame, to thereby derive a set of motion vectors.