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. 10, 2005
Filed:
Apr. 24, 2001
Cheung Auyeung, Sunnyvale, CA (US);
Sho Long Chen, Saratoga, CA (US);
Stanley H. Siu, Sunnyvale, CA (US);
Cheung Auyeung, Sunnyvale, CA (US);
Sho Long Chen, Saratoga, CA (US);
Stanley H. Siu, Sunnyvale, CA (US);
VWEB Corporation, San Jose, CA (US);
Abstract
A method and system is provided for calculating motion vectors of macroblocks in a digital image of a digital video stream. The method and system reduces the computational overhead of calculating motion vectors computing difference measures using a multi-phase computational scheme. Specifically, the pixel blocks the previous image are divided into different groups. The closest matching pixel block of each group is determined in a first phase. Then a more accurate difference measure is used to determine the origin block from among the closest matching pixel blocks.