USER AUTHENTICATION METHOD AND DEVICE
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United States of America Patent
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Issued Date -
Jan 15, 2015
app pub date -
Jul 15, 2014
filing date -
Jul 15, 2013
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Abstract
A method for checking the genuineness of a finger includes: a capture step during which a capture device captures a full field OCT image of the face of the finger; a co-occurrence matrix computing step during which a processing unit computes the co-occurrence matrix of the image thus captured; an entropy computing step during which the processing unit computes the entropy of the co-occurrence matrix thus computed; a contrast computing step during which the processing unit computes the contrast of the co-occurrence matrix thus computed; a mean computing step during which the processing unit computes the mean of the image thus captured; a comparison step during which the processing unit compares the characteristics thus computed with reference values of these characteristics; and a decision-taking step during which the processing unit takes a decision concerning the authenticity of the finger or palm from the result of the comparison step.
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