Image analysis – Applications
Reexamination Certificate
2011-07-26
2011-07-26
Johns, Andrew W (Department: 2624)
Image analysis
Applications
C382S287000
Reexamination Certificate
active
07986807
ABSTRACT:
Machine readable signals embedded in other media signals include a circular structure in a transform domain to facilitate detection. The machine readable signals are not apparent to human observers of rendered media containing the machine readable signals, such as images and documents. A detector captures the media signal, transforms it to the transform domain, and then uses the circular structure in the transform domain to facilitate detection despite rotation of the media signal.
REFERENCES:
patent: 5636292 (1997-06-01), Rhoads
patent: 5748783 (1998-05-01), Rhoads
patent: 5835639 (1998-11-01), Honsinger et al.
patent: 6122403 (2000-09-01), Rhoads
patent: 6219434 (2001-04-01), Saporetti et al.
patent: 6233347 (2001-05-01), Chen et al.
patent: 6483927 (2002-11-01), Brunk et al.
patent: 6580809 (2003-06-01), Stach et al.
patent: 6614914 (2003-09-01), Rhoads et al.
patent: 6647142 (2003-11-01), Beardsley
patent: 6795565 (2004-09-01), Wendt
patent: 6845170 (2005-01-01), Wendt
patent: 6978036 (2005-12-01), Alattar et al.
patent: 7072490 (2006-07-01), Stach
patent: 7076082 (2006-07-01), Sharma
patent: 7239734 (2007-07-01), Alattar et al.
patent: 7376242 (2008-05-01), Bradley et al.
patent: 7391881 (2008-06-01), Sharma
patent: 7454033 (2008-11-01), Stach et al.
patent: 7769202 (2010-08-01), Bradley et al.
patent: 2003/0012402 (2003-01-01), Ono
patent: 2004/0030899 (2004-02-01), Lee et al.
patent: 2011/0044494 (2011-02-01), Bradley et al.
Solachidis et al., “Circularly Symmetric Watermark Embedding in 2-D DFT Domain,” IEEE Proc. Int. Conf. on Acoustics, Speech and Signal Processing, vol. VI, Mar. 1999, pp. 3469-3472.
Kutter, “Watermarking Resisting to Translation, Rotation and Scaling,”. SPIE vol. 3528, Nov. 1998, pp. 423-431.
International Search Report for PCT/US02/08844, mailed Jul. 22, 2002.
International Preliminary Examination Report for PCT/US02/08844, completed Nov. 15, 2002.
Chen, B. et al., “Dither modulation: a new approach to digital watermarking and information embedding,” Proc. SPIE vol. 3657: Security and Watermarking of Multimedia Contents, Jan. 1999, pp. 342-353.
Chen, B. et al., “Provably robust watermarking,” Proc. SPIE vol. 3845: Multimedia Systems and Applications II, Sep. 1999, pp. 43-54.
Chen, B. et al., “Preprocessed and postprocessed quantization index modulation methods for digital watermarking,” Proc. SPIE vol. 3971: Security and Watermarking of Multimedia Contents II, Jan. 2000, pp. 48-59.
Gang, L. et al., Periodic Scheme in Oblivious Data Hiding, IEEE Proc. 34thAsilomar Conf. on Signals, Systems, and Computers, Oct./Nov. 2000, pp. 1851-1855.
Brunk Hugh L.
Sharma Ravi K.
Stach John
Digimarc Corporation
Johns Andrew W
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