| Presentation | 2007-07-19 生体情報の情報量に関する一考察 Kenta TAKAHASHI, Hideitsu HINO, Takao MURAKAMI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Due to the high security and convenience, biometric authentication is used at access control, ATM and many kinds of identity verification. In this paper, we consider the information amount of a biometric feature such as a fingerprint or a vein pattern in the sense of personal-identifying information. Firstly, we define the amount of personal-identifying information contained in a biometric feature by mutual information. Then we show that the mutual information can be approximated asymptotically by Kullback-Leibler divergence between the genuine score distribution f_G(x) and the imposter score distribution f_I(x). We propose to use this KL divergence as a metrics of biometric information in a certain biometric identification system. It is also discussed about the relationship between the metrics and ROC curve, information of multimodal biometrics, and possible application of the metrics to privacy protecting biometric technologies. Finally some methods for experimental estimation of biometric information based on the metrics are described. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | biometrics / information / metrics / multi-model biometrics / privacy protecting biometrics |
| Paper # | ISEC2007-43,SITE2007-37 |
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| Conference Information | |
| Committee | SITE |
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| Conference Date | 2007/7/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Social Implications of Technology and Information Ethics (SITE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | |
| Sub Title (in English) | |
| Keyword(1) | biometrics |
| Keyword(2) | information |
| Keyword(3) | metrics |
| Keyword(4) | multi-model biometrics |
| Keyword(5) | privacy protecting biometrics |
| 1st Author's Name | Kenta TAKAHASHI |
| 1st Author's Affiliation | Hitachi, Ltd., Systems Development Laboratory() |
| 2nd Author's Name | Hideitsu HINO |
| 2nd Author's Affiliation | Hitachi, Ltd., Systems Development Laboratory |
| 3rd Author's Name | Takao MURAKAMI |
| 3rd Author's Affiliation | Hitachi, Ltd., Systems Development Laboratory |
| Date | 2007-07-19 |
| Paper # | ISEC2007-43,SITE2007-37 |
| Volume (vol) | vol.107 |
| Number (no) | 139 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |