Patent Document ID: 8929618
Application ID: 13514226
Patent Status: 1

Claim One:
1. A determination object sensing device, comprising: a moving unit for moving a sensor surface, on which a finger as a determination object is placed, the finger being in a fixed state at a predetermined speed in a predetermined amount in a horizontal direction of the sensor surface; a sensing unit for acquiring fingerprint images of the finger before and after the sensor surface is moved; a derivation unit for obtaining a deformation level of the fingerprint before and after the sensor surface is moved based on two types of fingerprint images obtained by the sensing unit; a storage unit for storing a deformation threshold related to the deformation level of the fingerprint to determine whether the finger on the sensor surface is a real finger or a fake-finger; and a determination unit for determining whether the finger placed on the sensor surface is a real finger or a fake-finger based on comparison results of the deformation level of the fingerprint obtained by the derivation unit and the deformation threshold.