Download Biometrics and ID Management: COST 2101 European Workshop, by Andrzej Drygajlo (auth.), Claus Vielhauer, Jana Dittmann, PDF

By Andrzej Drygajlo (auth.), Claus Vielhauer, Jana Dittmann, Andrzej Drygajlo, Niels Christian Juul, Michael C. Fairhurst (eds.)

This ebook constitutes the completely refereed court cases of the fee 2101 overseas Workshop, BIOID 2011, held in Brandenburg (Havel), Germany, in March 2011.
The 25 revised complete papers awarded have been rigorously reviewed and chosen from various submissions and are accomplished through an advent on rate. The papers are prepared in topical major sections on concept and platforms, handwriting authentication, speaker authentication, face popularity, multibiometric authentication, and on biometrics and forensics.

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Extra info for Biometrics and ID Management: COST 2101 European Workshop, BioID 2011, Brandenburg (Havel), Germany, March 8-10, 2011. Proceedings

Example text

In the second case the multivariate ANOVA test is applied. The feature variation inside of a user is presented by the sum of deviations of user samples xkj from a user mean value μk and the feature variation between different users is presented by the sum of deviations of user mean values μk from the global mean value μ. The feature rank is given by equation 7. Here K is the number of users, Nk is the number of test samples of the user k and N is the total number of samples. 1 K ∑ N k (μk − μ ) 2 K − 1 k =1 F= K Nk 1 ( xkj − μ k ) 2 ∑∑ N − K k =1 j =1 (7) Correlation.

EV ✻ ✻ T ˆ FAR Q 0 μ ˆ V FRR ˆ Q FAR Fig. 3. Examples of Gaussian approximations to the probability distributions of the metric for the p-authentication algorithm Then ˆ V = 1− FRR 2 1 ˆ Q= + FAR 2 1 erf 2 1 erf 2 EV (T )n , EQ (T )n and, if −2(1 − ξ − 2θ)σp < T /σp < 0, then ˆ V ≤ exp −EV (T )n , FRR ˆ Q ≤ exp −EQ (T )n .

Typical examples for detection behaviour authentication, the issue of the protection of the sensor – matching module communication is not solved by just employing robust watermarking. How can we resolve the issues identified in this work: 1. The method of choice for the target scenario is semi-fragile WM embedding. These schemes allow for some robustness against unintentional image modifications like compression but are fragile against more severe intentional tampering. Exchanging iris texture as in our attack would lead to a destruction of the embedded template raising manipulation alarm.

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