Method for recognition and tracking of fibrous media and applications of such a method, particularly in the computer field
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 16, 2010
Issued Date -
N/A
app pub date -
Apr 6, 2005
filing date -
May 11, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to a method for acceptance of a candidate fibrous medium comprising the following steps: a candidate digital signature is generated from a structural characteristic extracted from a reference zone of the fibrous medium, the said digital signature representing the unique, complex, chaotic structure of the reference zone, practically invariable with time; the candidate digital signature is compared with at least one authentic digital signature previously recorded on a digital data medium so as to issue a positive or negative decision about acceptance of the candidate fibrous medium; characterized in that the comparison uses a statistical method to calculate a similarity index between the candidate digital characteristic and the authentic digital signature, and to compare this similarity index with a given acceptance threshold, so as to enable issuing a positive acceptance decision if the candidate digital signature does not exactly correspond to the authentic digital signature with which it is compared.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 65 Citation Count
- G06K Class
- 88.43 % this patent is cited more than
- 15 Age
