This chapter discusses the palm vein authentication, which uses the vascular patterns of the palm as personal identification data. The palm vein information is hard to duplicate since veins are internal to the human body. The palm vein authentication technology offers a high level of accuracy, and delivers the following results: a false rejection rate (FRR) of 0.01 % and a false acceptance rate (FAR) of less than 0.00008%, using the data of 150,000 palms. Several banks in Japan have used the palm vein authentication technology for customer identification since July 2004. In addition, this technology has been integrated into the door security systems and more.
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