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. 01, 2012
Filed:
Dec. 19, 2005
Vasudev Bhaskaran, Sunnyvale, CA (US);
Norihisa Hagiwara, Suwa, JP;
William Chen, Foster City, CA (US);
Changick Kim, Yuseong-gu, KR;
Vasudev Bhaskaran, Sunnyvale, CA (US);
Norihisa Hagiwara, Suwa, JP;
William Chen, Foster City, CA (US);
Changick Kim, Yuseong-gu, KR;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An inter mode for encoding a video macroblock is selected. An initial analysis on the macroblock homogeneity is performed to quickly reduce the number of inter modes for which motion estimation and rate distortion calculation are to be performed. An inter mode is selected based on these calculations and sub-pixel motion estimation, at various sub-pixel interpolation granularities, is performed only on the selected inter mode. Sub-pixel motion estimation may be skipped for macroblocks that exhibit relatively low distortion at the integer pixel level.