Image analysis – Applications
Reexamination Certificate
2006-09-05
2006-09-05
Johns, Andrew W. (Department: 2621)
Image analysis
Applications
C348S461000
Reexamination Certificate
active
07103197
ABSTRACT:
Various improvements to steganographic systems, and applications therefore, are disclosed. The improvements include facilitating scale and rotation registration for steganographic decoding by use of rotationally symmetric steganographically embedded patterns and subliminal digital graticules; improved techniques for decoding without access to unencoded originals; improving robustness of steganographic coding in motion pictures and/or in the presence of lossy compression/decompression; and representing data by patterned bit cells whose energy in the spatial domain facilitates decoding registration. Applications include enhanced-security financial transactions, counterfeit resistant identification cards, fraud deterrent systems for cellular telephony, covert modem channels in video transmissions, photo duplication kiosks with automatic copyright detection, and hotlinked image objects (e.g. with embedded URLs) for use on the internet.
REFERENCES:
patent: 4379947 (1983-04-01), Warner
patent: 5319735 (1994-06-01), Preuss et al.
patent: 5642397 (1997-06-01), Agbaje-Anozie
patent: 5721788 (1998-02-01), Powell et al.
patent: 29 43 436 (1981-05-01), None
patent: 0 493 091 (1992-07-01), None
patent: 2 196 167 (1988-04-01), None
Digimarc Corporation
Digimarc Corporation
Johns Andrew W.
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