Image analysis – Applications
Reexamination Certificate
2006-05-30
2006-05-30
Couso, Jose L. (Department: 2621)
Image analysis
Applications
Reexamination Certificate
active
07054465
ABSTRACT:
A data hiding method embeds information into an input signal. The method prepares a code signal having a plurality of elements with positive and negative values, and specifies blocks in the input signal into which the information is to be embedded. It determines an amount to modify elements of the input signal based on the values of the code signal and an encoding method that specifies how the code signal is to be applied to the block based on meaning of information to be embedded. It then adds this amount of modification. The process is repeated for additional blocks. The process of extracting the embedded information includes correlating the code signal with the block with respect to each block and obtaining a statistical value from the block values, and extracting embedded information according to the statistical value by referring to a decoding method, which provides a correspondence between the statistical value and meaning of information to be extracted.
REFERENCES:
patent: 4238849 (1980-12-01), Gassmann
patent: 4313197 (1982-01-01), Maxemchuk
patent: 4425661 (1984-01-01), Moses et al.
patent: 4807031 (1989-02-01), Broughton et al.
patent: 4943973 (1990-07-01), Werner
patent: 4969041 (1990-11-01), O'Grady et al.
patent: 5243423 (1993-09-01), DeJean et al.
patent: 5319735 (1994-06-01), Preuss et al.
patent: 5379345 (1995-01-01), Greenberg
patent: 5404377 (1995-04-01), Moses
patent: 5689587 (1997-11-01), Bender
patent: 5721788 (1998-02-01), Powell et al.
patent: 5774452 (1998-06-01), Wolosewicz
patent: 5822360 (1998-10-01), Lee et al.
patent: 5857038 (1999-01-01), Owada et al.
patent: 5859920 (1999-01-01), Daly et al.
patent: 2943436 (1981-05-01), None
patent: 2196167 (1988-04-01), None
Bender, “Techniques for Data Hidding,” Massachusetts Institute of Technology, Media Laboratory, SPIE vol. 2420, 1995.
Boland et al, “Watermarking Digital Images for Copyright Protection,” Fifth International Conference on Image Processing and its Applications, Conference Date Jul. 4-6, 1995, Conf. Publ. No. 410, p. 326-330.
Szepanski, “Binary Data Transmission Over Video Channels with very Low Amplitude Data Signals,” Fernseh- und Kino-Technik, vol. 32, No. 7, Jul., 1978, pp. 251-256. (German text with full English translation.).
Szepanski, “A Signal Theoretic Method for Creating Forgery-Proof Documents for Automatic Verification,” Proceedings 1979 Carnahan Conference on Crime Countermeasures, May 16, 1979, pp. 101-109.
Szepanski, “Additive Binary Data Transmission for Video Signals,” Papers Presented at Conf. Of Comm. Engineering Soc. Sep. 30-Oct. 3, 1980, Technical Reports vol. 74, pp. 342-352.
Szepanski, W., “Optimization of Add-On Signals by Means of a Modified Training Algorithm for Linear Classifiers,” IEEE Int'l Symp. On Info. Theory, pp. 27-28, Oct. 10, 1977.
Szepanski, W., “Compatibility Problems in Add-On Data Transmission for TV-Channels,” Second Symp. and Tech. Exh. on Electromagnetic Compatibility, pp. 263-268, Jun. 28, 1977.
Tirkel et al, “Electronic Water Mark,” DICTA-93, Macquarie University, Sydney, Australia, Dec., 1993, pp. 666-673.
van Schyndel et al., “Towards a Robust Digital Watermark,” ACCV '95, vol. 2, Dec., 1995, pp. 504-508.
van Schyndel et al., “A Digital Watermark,” IEEE International Conference on Image Processing, Nov. 13-16, 1994, pp. 86-90.
Couso Jose L.
Digimarc Corporation
DigimarcCorporation
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