Patent ID: 7843993
Filing Date: 2010-11-30
Classification: H04N

Abstract:
1. A moving picture encoding apparatus comprising: a first frame memory for storing an input image divided into brightness blocks of current macroblocks, each stored in one page; a second frame memory for storing a previous image divided into clusters, each including brightness blocks of a predetermined number of macroblocks and being stored in one page; a motion estimation processor for reading a brightness block of a current macroblock from the first frame memory, reading a cluster corresponding to a search area of the current macroblock from a search area of the second frame memory, and calculating a motion vector of the brightness block of the current macroblock on the basis of the read brightness block of the current macroblock and the read cluster; and a motion compensation processor for reading a brightness block of a macroblock, which is moved by using the motion vector to compensate the current macroblock, from the second frame memory, wherein a differential signal calculated on the basis of a difference between the brightness block of the current macroblock and the brightness block of the macroblock read from the motion compensation processor is encoded, the encoded differential signal is decoded, the decoded differential signal is decoded as the current macroblock by adding the brightness block of the macroblock read from the motion compensation processor to the decoded differential signal, and the decoded current macroblock is stored in units of brightness blocks of macroblocks as a portion of a cluster to be stored in the second frame memory.