Image analysis – Applications
Reexamination Certificate
2005-08-04
2009-06-23
Chawan, Sheela C (Department: 2624)
Image analysis
Applications
C382S190000, C382S232000
Reexamination Certificate
active
07551752
ABSTRACT:
A method of producing a digital multiple-level encoded image is presented. The method comprises obtaining a digital authentication image, obtaining a first encoding parameter set comprising one or more encoding parameters, and constructing a first encoded image. The first encoded image is constructed using a first encoding methodology, the digital authentication image and the first encoding parameter set. The method further comprises obtaining a second encoding parameter set comprising one or more encoding parameters and constructing a second encoded image using a second encoding methodology, the first encoded image and the second encoding parameter set. The second encoded image may be decoded to reveal the first encoded image using a decoder having characteristics corresponding to at least a portion of the encoding parameters of the second encoding parameter set. The first encoded image may be decoded to reveal the authentication image using a decoder having characteristics corresponding to at least a portion of the encoding parameters of the first encoding parameter set.
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Alasia Alfred J.
Alasia Alfred V.
Alasia Thomas C.
Cvetkovic Slobodan
Chawan Sheela C
Graphic Security Systems Corporation
Hunton & Williams LLP
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