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. 06, 2012
Filed:
Feb. 20, 2009
Dakala Jayachandra, Chittor, IN;
Gunupudi Nageswararao, Vijaywada, IN;
Rongali Satya Vara Prasad, Bangalore, IN;
Ramkishor Korada, Bangalore, IN;
Sunil Koteyar, Bangalore, IN;
Ruturaj Anand Chandpur, Bangalore, IN;
Dakala Jayachandra, Chittor, IN;
Gunupudi Nageswararao, Vijaywada, IN;
Rongali Satya Vara Prasad, Bangalore, IN;
Ramkishor Korada, Bangalore, IN;
Sunil Koteyar, Bangalore, IN;
Ruturaj Anand Chandpur, Bangalore, IN;
Aricent Group, George Town, KY;
Abstract
Disclosed herein is a method for global motion estimation for video stabilization. The method enables selecting a video frame from a video stream. The method further enables downscaling the video frames by factor close to 2 in a two dimensional range, dividing the downscaled video frame into a plurality of macroblocks, performing motion estimation for the macroblocks to generate a set of local motion vectors. Further, the method enables selecting macroblocks representing global motion vectors from the set of local motion vectors, computing a single global motion vector for the selected macroblocks and determining occurrence of at least one of: scene change, illumination change or crossing object and modifying the single global vector to compensate for errors induced due to occurrence of at least one of: scene change, illumination change or crossing object.