发明名称 |
Method and apparatus for adaptively coding video signals |
摘要 |
<p>The method and apparatus capable of adaptively coding intra-video signals by separately predicting intra DC and AC coefficients is provided. The method comprises the steps of finding a DC reference block among the previously coded blocks based on a correlation of the DC coefficients of the previously coded blocks; setting a DC coefficient of the DC reference block as a DC reference coefficient; determining one of the previously coded blocks as an AC reference block based on a correlation of selected AC coefficients of the previously coded blocks; generating AC reference coefficients based on AC coefficients of the AC reference block; and encoding coefficients of the current block based on the DC and the AC reference coefficients. The apparatus includes a transform block, a quantization block, a memory, a prediction block, and an entropy coding block.</p> |
申请公布号 |
GB9824537(D0) |
申请公布日期 |
1999.01.06 |
申请号 |
GB19980024537 |
申请日期 |
1998.11.09 |
申请人 |
DAEWOO ELECTRONICS CO., LTD |
发明人 |
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分类号 |
H04N7/24;G06T9/00;H03M7/38;H04N1/41;H04N19/105;H04N19/119;H04N19/12;H04N19/124;H04N19/132;H04N19/167;H04N19/172;H04N19/176;H04N19/18;H04N19/196;H04N19/423;H04N19/50;H04N19/593;H04N19/60;H04N19/61;H04N19/625;H04N19/91 |
主分类号 |
H04N7/24 |
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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