| 主权项 |
1. Method for checking the authenticity of a finger or palm by means of a checking device comprising a full field optical coherence tomography capture device designed to capture at least one image of a plane parallel to the face of the finger or palm, and a processing unit, the method comprising:
a capture step during which the capture device captures a full field OCT image of the finger or palm, a co-occurrence matrix computing step during which the 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. |
