发明名称 |
Pre-processed information embedding system |
摘要 |
Methods are provided for embedding auxiliary information in a host content signal which reduce the memory, bandwidth and computational complexity of the embedding and transmission systems. In one embodiment, a first reduced-scale signal is produced which corresponds to the host content embedded with a first logical value and producing a second reduced-scale signal corresponding to the host content embedded with a second logical value. A first set of segments from the first reduced-scale signal may be combined with a second set of segments from the second reduced-scale signal in a pre-defined manner to produce a composite embedded host content. Thus the storage and transmission requirements of the watermarking system are reduced to having to deal with only the original content plus two reduced-scale signals.
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申请公布号 |
US8321679(B2) |
申请公布日期 |
2012.11.27 |
申请号 |
US20090630772 |
申请日期 |
2009.12.03 |
申请人 |
PETROVIC RADE;TEHRANCHI BABAK;WINOGRAD JOSEPH M.;WONG DOUGLAS;VERANCE CORPORATION |
发明人 |
PETROVIC RADE;TEHRANCHI BABAK;WINOGRAD JOSEPH M.;WONG DOUGLAS |
分类号 |
H04L9/00 |
主分类号 |
H04L9/00 |
代理机构 |
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地址 |
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