Auflistung nach Autor:in "Shinzaki, Takashi"
1 - 4 von 4
Treffer pro Seite
Sortieroptionen
- KonferenzbeitragA biometric key-binding scheme using lattice masking(BIOSIG 2014, 2014) Sugimura, Yuka; Yasuda, Masaya; Yamada, Shigefumi; Abe, Narishige; Shinzaki, TakashiTemplate protection technology can protect the confidentiality of a biometric template by certain conversion. We focus on the key-binding approach for template protection. This approach generates a secure template (or a conversion template) from joint data of a user's specific key with a user's template, and the key can be correctly extracted from the secure template only when a queried biometric feature is sufficiently close to the original template. While almost all conventional schemes use the error correcting code (ECC) technique, we present a new technique based on lattices to give a new key-binding scheme. Our proposed scheme can provide several requirements (e.g., diversity and revocability) for template protection, which cannot be provided by ECC-based schemes such as the fuzzy commitment and the fuzzy vault.
- KonferenzbeitragEvaluation of independence between multiple fingerprints for multibiometrics(BIOSIG 2014, 2014) Yamada, Shigefumi; Shinzaki, TakashiMultibiometrics provides high recognition accuracy and population coverage by combining different biometric sources. However, some multibiometrics may obtain smaller-than-expected improvement of recognition accuracy if the combined biometric sources are dependent in terms of a false acceptance by mistakenly perceiving biometric features from two different persons as being from the same person. In this paper, we evaluated whether or not features of multiple fingerprints from a same person are statistically independent. By evaluating false acceptance error using matching scores obtained by Verifinger SDK, we confirmed that these features were dependent and the FAR obtained by a fusion of the multiple fingerprints could be affected by the dependence.
- KonferenzbeitragEvaluation of independence between palm vein and fingerprint for multimodal biometrics(BIOSIG 2012, 2012) Yamada, Shigefumi; Endoh, Toshio; Shinzaki, TakashiMultimodal biometrics provides high recognition accuracy and population coverage by combining different biometric sources. However, some multimodal biometrics may obtain smaller-than-expected improvement of recognition accuracy if the combined biometric sources are dependent in terms of a false acceptance by mistakenly perceiving biometric features from two different persons as being from the same person. In this paper, we propose our multimodal biometric prototype that captures a palm vein and three fingerprints simultaneously and we evaluate whether or not their combination is statistically independent. By evaluating false acceptance using the palm vein images and the fingerprint images collected with our prototype, we confirmed that the combination of the palm vein and the fingerprints is almost independent.
- KonferenzbeitragA novel local feature for eye movement authentication(Biosig 2016, 2016) Abe, Narishige; Yamada, Shigefumi; Shinzaki, Takashi