ROUH ALAIN,LE GOUIL ELISE,GACON PIERRE,KRICHEN EMINE,BRAUN JEAN NO«L
申请号：
IN201744022801
公开号：
IN201744022801A
申请日:
2017.06.29
申请国别(地区):
IN
年份:
2018
代理人:
摘要：
Method of detecting attempted fraud against a recognition system for recognising the iris of the human eye, comprising: - generation of a first image (3a) of an iris (2) using first means of image capture (3) in a visible light spectrum - generation of a second image (4a) of said iris (2) using second means of image capture (4) in a near infra-red spectrum. The method comprises: - determination of at least one characteristic of the first image (3a) determined as a function of respective optical characteristics of pixels of a plurality of pixels of this first image and - determination of at least one characteristic of the second image (4a) determined as a function of respective luminous intensities of pixels of a plurality of pixels of this second image and as a function of said at least one characteristic of the first image thus determined and of said at least one characteristic of the second image thus determined, a signal (S) representative of suspected detection of attempted fraud is generated. FIGURE 4
