Abstract: The present invention relates to technology of compressing large image data in order to effectively use a storage medium and efficiently use a communication medium in an image data compression technique field, and more particularly, to fast compression mode calculation in H.264. The present invention provides an H.264 compression mode estimation apparatus comprising: a macroblock image characteristic calculator calculating a macroblock image characteristic from macroblock image information; a macroblock mode estimator which comprises mode history tables and a table management unit managing these tables, in order to estimate a mode of a current macroblock from macroblock coordinates; and a mode estimation optimization judgment unit calculating RD-cost for the mode estimation and selecting an optimal mode in order to prevent the spread of errors of the estimated mode.
Type:
Grant
Filed:
July 6, 2007
Date of Patent:
August 7, 2012
Assignees:
Libertron Co., Ltd., Konkuk University Industrial Cooperation Corp.
Abstract: The present invention relates to technology of compressing large image data in order to effectively use a storage medium and efficiently use a communication medium in an image data compression technique field, and more particularly, to fast compression mode calculation in H.264. The present invention provides an H.264 compression mode estimation apparatus comprising: a macroblock image characteristic calculator calculating a macroblock image characteristic from macroblock image information; a macroblock mode estimator which comprises mode history tables and a table management unit managing these tables, in order to estimate a mode of a current macroblock from macroblock coordinates; and a mode estimation optimization judgment unit calculating RD-cost for the mode estimation and selecting an optimal mode in order to prevent the spread of errors of the estimated mode.
Type:
Application
Filed:
July 6, 2007
Publication date:
February 25, 2010
Applicants:
LIBERTRON CO., LTD., KONKUK UNIVERSITY INDUSTRIAL COOPERATION CORP