Personal identification device and method

摘要

A highly accurate identification device is implemented by developing a function of evaluating the suitability of a registration candidate finger for vein authentication. A personal identification system includes a light source, an imager that images light transmitted through a living body, and a processor that performs identification based on a blood vessel pattern imaged at the imager. The processor evaluates suitability for identification, from body surface information and blood vessel information in the blood vessel pattern based on a shot image.