发明名称 |
Verfahren und Apparat zur Kodierung von Bewegtbildsignalen. |
摘要 |
An encoder in an encoder/decoder system includes a circuit (1) for orthogonally transforming an input image signal, a circuit (81) for receiving the input image signal, judging which orthogonal transformation coefficient is to be omitted and which orthogonal transformation coefficient is to be interframe-coded, and outputting a judgement result as mode information, and a circuit (5) for receiving an output signal from the orthogonal transformation circuit (1), omitting the orthogonal transformation coefficient according the mode information, and outputting a coded image signal. In a decoder in the encoder/decoder system, the orthogonal transformation coefficient is omitted on the basis of the mode information sent from the encoder, thereby decoding the image signal. |
申请公布号 |
DE3788326(T2) |
申请公布日期 |
1994.03.17 |
申请号 |
DE19873788326T |
申请日期 |
1987.09.21 |
申请人 |
NEC CORP., TOKIO/TOKYO, JP |
发明人 |
MOCHIZUKI, TAKASHI, MINATO-KU TOKYO, JP |
分类号 |
G06T9/00;H04N7/30;H04N7/50;(IPC1-7):H04N7/133;H04N7/137 |
主分类号 |
G06T9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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