METHOD FOR DETECTION OF FRAUD BY THE POLARIMETRIC CHARACTERIZATION OF A HUMAN BODY ELEMENT

摘要

The invention relates to a biometric authentication method for authenticating that an object (3) is an authentic element of the human body, comprising for several pairs of different polarization states the illumination of the object (3) by a flux. incident light having a first polarization state, filtering a returned luminous flux emitted by the object resulting from lighting by the incident flux, said filtering selecting a second polarization state, and acquiring an image of the filtered light flux, then the determination of coefficients of a measured Mueller matrix, the determination of polarimetric indicators and the determination of what the object is or is not an authentic element of the human body on the basis of polarimetric indicators .