发明名称 |
Method and apparatus for coding a digitized original picture and method and apparatus for decoding a digitized coded picture |
摘要 |
The discrete cosine transform of the prediction error is not necessarily calculated, rather the DCT of the original picture to be transmitted and the DCT of the temporally preceding reconstructed picture are calculated separately from one another. By comparing the amplitudes of the coefficients from the original signal with respect to the difference between the coefficients from the original signal and the reconstructed picture, a decision is made for each coefficient as to whether the coefficient of the original signal or the difference between the coefficients is transmitted.
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申请公布号 |
US7013048(B2) |
申请公布日期 |
2006.03.14 |
申请号 |
US20010950808 |
申请日期 |
2001.09.13 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
BUSCHMANN RALF |
分类号 |
G06K9/36;G06T9/00;H04N7/26;H04N7/50 |
主分类号 |
G06K9/36 |
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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