发明名称 |
VERFAHREN ZUR ESTIMATION DER BILDQUALITÄT EINES DEKODIERTEN BILDES |
摘要 |
By utilizing parameters derivable from a compressed bit-stream, measures are obtained of the subjective quality of a decoded picture, without the necessity for reference to source material. A blockiness measure is derived both locally and globally and used to control a de-blocking filter. An estimate of signal-to-noise ratio is derived from quantization values. |
申请公布号 |
DE69925296(D1) |
申请公布日期 |
2005.06.16 |
申请号 |
DE1999625296 |
申请日期 |
1999.10.11 |
申请人 |
SNELL & WILCOX LTD., HAVANT |
发明人 |
KNEE, JAMES;DIGGINS, JONATHAN |
分类号 |
G06T5/20;H04N7/26;H04N7/30;H04N17/00;(IPC1-7):H04N7/30 |
主分类号 |
G06T5/20 |
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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