| 摘要 |
Provided are a vein authentication system and a vein authentication method that are capable of correctly assessing the authenticity of a finger by using a vein of a living body. The invention is the vein authentication system, which correctly assesses the authenticity of the finger by using the vein of the living body, said vein authentication system being provided with a sensor unit and an assessment unit. Said sensor unit comprises: a guide for placing the living body; and an image sensor that acquires image data containing an image of the vein of the living body placed in the guide. Said assessment unit judges whether or not a first image data item and a second image data item are in a specified relationship, and on the basis of this judgment, assesses whether an object placed in the guide is the living body. Said first image data item is acquired by the image sensor in a first state, which is a state before the condition of pressure applied to the guide by the living body is changed. Said second image data item is acquired by the image sensor in a second state, which is a state after the condition of the pressure applied to the guide by the living body is changed. |
