Title:
BIOMETRIC AUTHENTICATION APPARATUS, BIOMETRIC AUTHENTICATION METHOD AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2010/084928
Kind Code:
A1
Abstract:
A plurality of pieces of information related to the iris pattern of an eye can be checked against each other in a short time. Characteristic curves (S(1)-S(8)), which are in accordance with eight ring areas (A1-A8) formed by dividing an image of an iris, are generated. The polarities of the gradients of these characteristic curves are then arranged, thereby generating codes (1-8) to be checked. Each of these codes (1-8) to be checked consists of a ternary combination of +, – and zero, whereby the amount of data to be handled during the checking process can be reduced. As a result, checking the codes to be checked can be performed in a short time.
Inventors:
SU LEIMING (JP)
HOSHINO YUKIO (JP)
ITAKURA YUKIO (JP)
HOSHINO YUKIO (JP)
ITAKURA YUKIO (JP)
Application Number:
PCT/JP2010/050735
Publication Date:
July 29, 2010
Filing Date:
January 21, 2010
Export Citation:
Assignee:
NEC CORP (JP)
SU LEIMING (JP)
HOSHINO YUKIO (JP)
ITAKURA YUKIO (JP)
SU LEIMING (JP)
HOSHINO YUKIO (JP)
ITAKURA YUKIO (JP)
International Classes:
G06T1/00; A61B5/117; G06T9/20
Domestic Patent References:
| WO2005008590A1 | 2005-01-27 |
Foreign References:
| JP3307936B2 | 2002-07-29 |
Attorney, Agent or Firm:
KIMURA MITSURU (JP)
Mitsuru Kimura (JP)
Mitsuru Kimura (JP)
Download PDF: