发明名称 |
VIDEO DATA CONVERSION DEVICE AND VIDEO DATA CONVERSION METHOD |
摘要 |
<p>In an MPEG-2 decoder (2), a variable length decoder (2A) carries out syntax analysis of input compression data (1) according to the MPEG-2 standard, and generates coding mode information (3), motion vector information (4) and prediction residual signal (2B). The prediction residual signal (2B) is transformed to a decoded picture (5) through a dequantizer (2C) and the like, and is supplied to an MPEG-4 encoder (10) via a resolution converter (6). In the MPEG-4 encoder (10), a coding parameter deciding section (10B) decides a motion vector according to a prediction error estimation value for evaluating a prediction efficiency when using a motion vector-candidate generated by a motion vector mapping section (7), and according to a value for evaluating a motion vector rate when using the motion vector candidate. <IMAGE></p> |
申请公布号 |
EP1475971(A4) |
申请公布日期 |
2010.03.03 |
申请号 |
EP20030746441 |
申请日期 |
2003.04.09 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
SEKIGUCHI, SHUNICHI;YAMADA, YOSHIHISA;OGAWA, FUMINOBU;ASAI, KOHTARO |
分类号 |
H04N19/51;H03M7/36;H04N19/105;H04N19/109;H04N19/12;H04N19/126;H04N19/136;H04N19/137;H04N19/139;H04N19/147;H04N19/159;H04N19/176;H04N19/186;H04N19/196;H04N19/40;H04N19/423;H04N19/50;H04N19/503;H04N19/513;H04N19/523;H04N19/567;H04N19/573;H04N19/577;H04N19/587;H04N19/59;H04N19/61;H04N19/625;H04N19/91;H04N19/93;(IPC1-7):H04N7/32 |
主分类号 |
H04N19/51 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|