Image analysis – Applications
Reexamination Certificate
2008-05-06
2008-05-06
Couso, Jose L. (Department: 2624)
Image analysis
Applications
Reexamination Certificate
active
07369678
ABSTRACT:
Steganographic signals or digital watermarks are detected from media signals. A media signal may represent audio, video or imagery. In one implementation, a method of detecting a digital watermark in a media signal is provided. The method includes receiving blocks of the media signal; buffering the blocks; screening the blocks for a presence of the digital watermark to identify a plurality of blocks likely to include the digital watermark based on a detection metric; combining the blocks that have been identified as being likely to include the digital watermark; and detecting the watermark from the combined blocks. Other implementations are provided as well.
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Couso Jose L.
Digimarc Corporation
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