Cryptography – By modifying optical image
Reexamination Certificate
2006-09-26
2006-09-26
Cangialosi, Salvatore (Department: 3621)
Cryptography
By modifying optical image
C380S059000
Reexamination Certificate
active
07113596
ABSTRACT:
The present invention relates to an identification document for a subject. The identification document includes a substrate, and a visual image formed on the substrate. The visual image includes a face image of the subject in a first area, and invisible but retrievable embedded information formed in the face image in the first area but not formed in a second area of the visual image. The embedded information corresponds to the identity of the subject and is usable to identify the subject.
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Cangialosi Salvatore
Digimarc Corporation
Digimarc Corporation
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