(19)
(11) EP 2 138 954 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A2)

(48) Corrigendum issued on:
23.06.2010 Bulletin 2010/25

(43) Date of publication:
30.12.2009 Bulletin 2009/53

(21) Application number: 09251636.8

(22) Date of filing: 24.06.2009
(51) International Patent Classification (IPC): 
G06K 9/20(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA RS

(30) Priority: 27.06.2008 JP 2008168826

(71) Applicant: Hitachi, Ltd.
Chiyoda-ku Tokyo 100-8280 (JP)

(72) Inventors:
  • Suginobu, Manabu
    Tokyo 100-8220 (JP)
  • Horiuchi, Yuichi
    Tokyo 100-8220 (JP)

(74) Representative: Calderbank, Thomas Roger et al
Mewburn Ellis LLP 33 Gutter Lane
London EC2V 8AS
London EC2V 8AS (GB)

   


(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.