| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To secure the locality of an access even if a reference picture is dispersed in processing motion compensation in inter-frame prediction. <P>SOLUTION: When an object block of motion compensation processing is a bidirectional prediction (B) block, interpolation processing with respect to two reference pictures is decomposed into first processing and second processing. In the acquisition (711, 721) of reference pixels, interpolation processing (712, 722), and the storage of interpolation results (713, 723), the first processing and the second processing are independently executable, the locality of a memory is improved and a hit rate of a cache memory is increased by performing interpolation processing whose reference picture number is the same at a time. In the case of the bidirectional prediction (B) block, the average processing of the two interpolation results is necessary, an interpolation result is acquired in third processing (731), the averaging processing is performed (732), and consequently, a predicted image is stored (733). The averaging processing does not need a reference picture. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
