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. 17, 2015
Filed:
Oct. 05, 2009
Hyun Mun Kim, Rockville, MD (US);
Jong Beom Ra, Taejeon-si, KR;
Sung Deuk Kim, Taejeon-si, KR;
Young Su Lee, Seoul, KR;
Hyun Mun Kim, Rockville, MD (US);
Jong Beom Ra, Taejeon-si, KR;
Sung Deuk Kim, Taejeon-si, KR;
Young Su Lee, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A method of coding a moving picture is provided that reduces blocking artifacts. The method can include defining a plurality of defining pixels S, S, and S, which are centered around a block boundary. If a default mode is selected then frequency information of the surroundings of the block boundary is obtained. A magnitude of a discontinuous component in a frequency domain belonging to the block boundary is adjusted based on a magnitude of a corresponding discontinuous component selected from a pixel contained entirely within a block adjacent the block boundary. The frequency domain adjustment is then applied to a spatial domain. Or, a DC offset mode can be selected to reduce blocking artifacts in smooth regions where there is little motion.