Identifying device by biometrics information
In an identifying device for performing personal identification using biometrics information such as an iris, face, blood vessel pattern, auricle, fingerprint, palm print, hand print or the like, in order to surely discriminate a living body from a non-living body and to surely preclude illegal use by impersonation using a forged fingerprint or the like, a biometrics information input section samples/inputs biometrics information for verification as image information from a living body portion relatively moving with respect to this biometrics information input section, and living-body detection surfaces in a living-body detecting means is arranged in contact with or in the proximity to the living body portion being moved with respect to the biometrics information input section so as to input the biometrics information for verification.
1. An identifying device by biometrics information comprising:
a biometrics information input section to sample biometrics information for verification, which is used for comparison/verification with registered biometrics information at personal identification, from a living body portion of a person to be identified and to input the sampled biometrics information for verification; and
a living-body detector to detect if the living body portion, for which the biometrics information for verification is being sampled/inputted by the biometrics information input section, is a living body or not, wherein
the biometrics information input section is to sample/input the biometrics information for verification as image information from the living body portion moving relatively with respect to the biometrics information input section,
a living-body detection surface in the living-body detector is arranged in contact with or in the proximity to the living body portion being moved with respect to the biometrics information input section so as to input the biometrics information for verification,
the living body portion is a finger of the person to be identified, the biometrics information input section is to sample/input a fingerprint image of the finger as the biometrics information for verification, and the living-body detector is to detect a forged fingerprint, and
the living-body detector samples a blood vessel pattern in the finger by irradiating light to the finger and discriminates a living body from a forged fingerprint based on an absence or presence of the sampled blood vessel pattern.
2. The identifying device by biometrics information according to claim 1 , wherein the living-body detector samples a blood vessel pattern in the finger by a line sensor, and an image of the blood vessel pattern in the finger is reconfigured from a partial image sampled by the line sensor based on a fingerprint image sampled by the biometrics information input section.
3. The identifying device by biometrics information according to claim 1 , wherein the living-body detector samples a blood vessel pattern in the finger by a line sensor, and the fingerprint image is reconfigured from a partial image sampled by the biometrics information input section based on a image of the blood vessel pattern in the finger sampled by the line sensor.
4. The identifying device by biometrics information according to claim 1 , wherein the biometrics information input section has a width capable of simultaneously sampling/inputting fingerprint images as the biometrics information for verification of a plurality of fingers as the living body portion.