发明名称 |
Gerät zur Komprimierung und Wiedergabe von Video/Audio-Daten |
摘要 |
In video/audio compression, a video signal is separated into luminance and a color difference. The color difference is partially subsampled. An interframe difference is compression-coded by an encoding unit. At that time, particular subsampling information corresponding to a designated reproducing rate is extracted from subsampling information. The particular subsampling information is inserted into compressed video data. On the other hand, in video/audio reproduction, the color difference of the video, which has partially been subsampled, are interpolated by a decoding unit with reference to the subsampling information inserted into the compressed video data. <IMAGE> |
申请公布号 |
DE69418942(D1) |
申请公布日期 |
1999.07.15 |
申请号 |
DE1994618942 |
申请日期 |
1994.08.12 |
申请人 |
NEC CORP., TOKIO/TOKYO, JP |
发明人 |
UEDA, HIROAKI, C/O NEC CORPORATION, MINATO-KU, TOKYO, JP |
分类号 |
H04N5/781;H04N7/46;H04N7/52;H04N9/804;(IPC1-7):H04N9/80 |
主分类号 |
H04N5/781 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|