Systems and methods for encoding randomly distributed features in an object
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United States of America Patent
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Aug 18, 2009
Grant Date -
Sep 22, 2005
app pub date -
Mar 17, 2004
filing date -
Mar 17, 2004
priority date (Note) -
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Abstract
The described systems and methods described are directed at encoding randomly distributed features in an object. Randomly distributed features in an authentication object are determined. Data representing the randomly distributed features is compressed and encoded with a signature. A label is created and includes the authentication object and the encoded data. The data may be compressed by determining a probability density function associated with the authentication object. Vectors associated with the randomly distributed attributes are determined based, at least in part, on the probability density function. The vectors are encoded using an arithmetic coding algorithm.
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