发明名称 |
Biometrics authentication method and client terminal and authentication server used for biometrics authentication |
摘要 |
<p>In a biometrics authentication system inputting biometric information and outputting a user ID (1:N authentication system), speedup of 1:N matching on the side of a server (120) is achieved when cancelable biometrics authentication is realized in which matching (S507) is carried out while keeping biometric information concealed from the server. During registration (S407), similarity of a feature (x) to a dummy feature (D[i]) is searched and the feature (x) is transformed by using a transform parameter (R[i*]) corresponding to a nearest neighboring dummy feature (D[i*]) (transformed feature (T)). The transformed feature (T) and a group ID (i*) are transmitted to the server (120) and the server registers the transformed feature (T) at the group in a DB (122). During authentication, like the registration process, similarity search of a feature (y) is carried out and the feature (y) is transformed by using transform parameter (R[i*]) corresponding to a nearest neighboring dummy feature (D[i*]) (transformed feature (V)). The transformed feature (V) and group ID (i*) are transmitted to the server. The server (120) executes 1:1 matching between a template at the group in the DB and the transformed feature (V).
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申请公布号 |
EP2261831(A3) |
申请公布日期 |
2014.05.28 |
申请号 |
EP20100003868 |
申请日期 |
2010.04.12 |
申请人 |
HITACHI, LTD. |
发明人 |
HIRATA, SHINJI;TAKAHASHI, KENTA |
分类号 |
G06K9/68;G06F21/32;G06T7/00;H04L9/32 |
主分类号 |
G06K9/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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