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(11) | EP 2 138 954 A8 |
(12) | CORRECTED EUROPEAN PATENT APPLICATION |
Note: Bibliography reflects the latest situation |
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(54) | Finger vein authentication device |
(57) A finger vein authentication device includes a finger information register unit for
extracting information of a vein pattern from a vein image and registering the same
as a matching template in a memory, and a finger vein authentication unit for extracting
information of a vein pattern from the vein image and matching the same with the matching
template to perform personal authentication. The device includes a finger image processing
unit for extracting characteristics data of the finger from the vein image and a finger
placement state determining unit for determining whether a placement state of the
finger is good or not according to whether the characteristics data of the finger
is within a predetermined range or not. If the determination result of the finger
placement state determining unit is not good, the user is instructed to correctly
place the finger by a picture output unit and/or a voice output unit, and the vein
image is obtained again.
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