发明名称 |
DYNAMIC IMAGE ENCODING METHOD AND DYNAMIC IMAGE DECODING METHOD |
摘要 |
Provided is a video encoding/decoding technique for improving the compression efficiency by reducing the motion vector code amount. In a video decoding process, the prediction vector calculation method is switched from one to another in accordance with a difference between predetermined motion vectors among a plurality of motion vectors of a peripheral block of a block to be decoded and already decoded. The calculated prediction vector is added to a difference vector decoded from an encoded stream so as to calculate a motion vector. By using the calculated motion vector, the inter-image prediction process is executed. |
申请公布号 |
EP2343902(A4) |
申请公布日期 |
2013.08.14 |
申请号 |
EP20090815792 |
申请日期 |
2009.06.02 |
申请人 |
HITACHI, LTD. |
发明人 |
TAKAHASHI, MASASHI;YAMAGUCHI, MUNEAKI |
分类号 |
H04N19/50;H04N19/12;H04N19/13;H04N19/134;H04N19/139;H04N19/146;H04N19/147;H04N19/154;H04N19/196;H04N19/423;H04N19/46;H04N19/463;H04N19/503;H04N19/51;H04N19/513;H04N19/52;H04N19/593;H04N19/61;H04N19/625;H04N19/63;H04N19/70;H04N19/91 |
主分类号 |
H04N19/50 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|