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:
Mar. 24, 2015
Filed:
Dec. 07, 2011
Sungsoo Park, Cupertino, CA (US);
Matthias Braun, Mountain View, CA (US);
Erwin Sai Ki Liu, San Carlos, CA (US);
SungSoo Park, Cupertino, CA (US);
Matthias Braun, Mountain View, CA (US);
Erwin Sai Ki Liu, San Carlos, CA (US);
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;
Abstract
A method of operating a video processor is provided. The method includes receiving a first image data representing a first frame of a scene, dividing at least a central portion of the first frame into a plurality of tiles, identifying feature point candidates in the first image data, selecting a set of feature points within each specific tile based on the luminance variance σ2 of the specific tile, receiving a second image data representing a second frame of the scene, deriving feature point motion vectors between the first and second frames corresponding to the identified feature, grouping the motion vectors into motion vector groups based on vector magnitude ratios and angular differences, and calculating the affine transform of each group of motion vectors.