| 摘要 |
<p>Disclosed is a fake finger discrimination device which can acquire fingerprint images required for fake finger discrimination in one input operation, and which improves convenience and fake finger discrimination accuracy. The fake finger discrimination device is provided with: a movement means for moving a sensor surface relative to a finger to be screened which is placed thereon; a sensing means for acquiring a fingerprint image of the finger before and after the movement of the sensor surface; a derivation means for determining the degree of deformation between the fingerprint before and after the movement of the sensor surface on the basis of the two types of fingerprint image acquired by the sensing means; a storage means for storing a deformation threshold relating to a fingerprint deformation degree for discriminating whether the finger is fake or real; and a discrimination means for discriminating whether the finger placed on the sensor surface is fake or real on the basis of the result of a comparison between the fingerprint deformation degree determined by the derivation means, and the deformation threshold.</p> |
