Method and apparatus for providing reduced reference techniques for low frequency watermarking
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United States of America Patent
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Aug 3, 2010
Grant Date -
Jan 27, 2005
app pub date -
Jun 21, 2004
filing date -
Jun 19, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and apparatus for using a reference in a watermarking application is disclosed. Watermarked content and a reduced resolution reference are registered such that registration parameters are calculated. The watermarked content is processed using the registration parameters. A watermark is recovered using the processed watermarked content and the reduced resolution reference.
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