| 发明名称 |
DATA PROCESSOR, DATA PROCESSING METHOD AND ENCODER |
| 摘要 |
<p>From an MPEG image data (S11), an MPEG2 encoder circuit (51) extracts a quantum scale (Qm) of each macro block (MB) which has been used for quantization of the MPEG2 in the encoding process. An activity calculation circuit (53) calculates an activity (Nact), based on the quantum scale (Qm), A rate control circuit (54) calculates a quantization parameter (QP) for each macro block (MB), based on the activity (Nact).</p> |
| 申请公布号 |
EP1722571(A4) |
申请公布日期 |
2010.10.27 |
| 申请号 |
EP20050710701 |
申请日期 |
2005.02.25 |
| 申请人 |
SONY CORPORATION |
发明人 |
SATO, KAZUSHI;YAGASAKI, YOICHI |
| 分类号 |
H04N19/126;H04N1/41;H04N7/24;H04N19/00;H04N19/134;H04N19/136;H04N19/14;H04N19/172;H04N19/174;H04N19/176;H04N19/196;H04N19/40;H04N19/503;H04N19/61;H04N19/625;H04N19/85;H04N19/91 |
主分类号 |
H04N19/126 |
| 代理机构 |
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代理人 |
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| 主权项 |
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