发明名称 |
Symmetric lattices for quantization and data embedding |
摘要 |
<p>Methods and systems for quantization and data embedding are described. In at least some embodiments, a transform is applied on an image that is to be watermarked and statistics associated with the image are computed. The computed statistics are quantized using a symmetric lattice, and a watermark is computed using the lattice quantized statistics. The watermark is then inserted into the image.
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申请公布号 |
EP1605399(A3) |
申请公布日期 |
2006.05.17 |
申请号 |
EP20050104655 |
申请日期 |
2005.05.31 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
JAIN, KAMAL;MIHCAK, M. KIVANC;VENKATESAN, RAMARATHNAM |
分类号 |
G06T1/00;H04N1/387 |
主分类号 |
G06T1/00 |
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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