Data hiding in media
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United States of America Patent
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May 12, 2009
Grant Date -
May 15, 2008
app pub date -
Jan 22, 2008
filing date -
Jan 18, 2002
priority date (Note) -
In Force
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Abstract
The present invention provides steganographic embedding and detecting techniques, along with related apparatus. One claim recites a signal detector including: an input and an analyzer. The input obtains media including a signal hidden therein. The signal including plural-bit data, the signal being hidden in the media through an arrangement of message objects. The arrangement is facilitated—at least in part—through thresholding of a steganographic signal representing or carrying the plural-bit data. The analyzer analyzes the media to obtain the plural-bit data. Of course, other combinations are provided and claimed as well.
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