发明名称 |
Assessing quality of service using digital watermark information |
摘要 |
The disclosure details methods of measuring the quality of service of received media signals by analyzing digital watermarks embedded in such signals. The quality of a received video or audio signal can thereby be assessed without having the original version of the signal before transmission. Instead, the strength or quality of the embedded digital watermark is analyzed to determine the quality of the received signal. The degradation of a watermark signal is used to assess quality of service of signals, such as audio and video. Several other features and arrangements are also detailed. |
申请公布号 |
US8130811(B2) |
申请公布日期 |
2012.03.06 |
申请号 |
US20100692470 |
申请日期 |
2010.01.22 |
申请人 |
TIAN JUN;LEVY KENNETH L.;BRUNK HUGH L.;DIGIMARC CORPORATION |
发明人 |
TIAN JUN;LEVY KENNETH L.;BRUNK HUGH L. |
分类号 |
H04B1/00;H04N7/167 |
主分类号 |
H04B1/00 |
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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