Image analysis – Applications
Reexamination Certificate
2006-02-21
2006-02-21
Johns, Andrew W. (Department: 2621)
Image analysis
Applications
Reexamination Certificate
active
07003132
ABSTRACT:
Methods for embedding and reading auxiliary messages from image signals use embedded code signals modulated with the auxiliary message. These embedded ode signals may be used to convey hidden tracking codes in images, video and printed objects. The embedded code signals are embedded by varying characteristics of the image signal, including, for example, gray-level, reflective properties, photo-reactive properties, etc.
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Digimarc Corporation
Digimarc Corporation
Johns Andrew W.
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