发明名称 |
VORRICHTUNG UND VERFAHREN ZUR KODIERUNG VON VIDEOBILDERN. |
摘要 |
The picture quality of an MPEG-encoded video signal is improved considerably by reducing the coefficients after quantization in such a way that the "Lagrangian cost" D+ lambda R (D is distortion, R is bitrate) is minimal for a given value of the "Lagrange multiplier" lambda . The distortion decreases because the step size is reduced while the bitrate remains equal. |
申请公布号 |
DE69609137(D1) |
申请公布日期 |
2000.08.10 |
申请号 |
DE1996609137 |
申请日期 |
1996.04.18 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN |
发明人 |
KEESMAN, JOHAN |
分类号 |
G06T9/00;H04N7/30;(IPC1-7):H04N7/30 |
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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