By Andrzej Drygajlo (auth.), Claus Vielhauer, Jana Dittmann, Andrzej Drygajlo, Niels Christian Juul, Michael C. Fairhurst (eds.)
This booklet constitutes the completely refereed court cases of the associated fee 2101 foreign Workshop, BIOID 2011, held in Brandenburg (Havel), Germany, in March 2011.
The 25 revised complete papers awarded have been conscientiously reviewed and chosen from various submissions and are accomplished through an advent on expense. The papers are prepared in topical major sections on concept and structures, handwriting authentication, speaker authentication, face acceptance, multibiometric authentication, and on biometrics and forensics.
Read Online or Download Biometrics and ID Management: COST 2101 European Workshop, BioID 2011, Brandenburg (Havel), Germany, March 8-10, 2011. Proceedings PDF
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Additional info for Biometrics and ID Management: COST 2101 European Workshop, BioID 2011, Brandenburg (Havel), Germany, March 8-10, 2011. Proceedings
However, the motivations for applying this speciﬁc type of watermarks are not made clear and discussed superﬁcially only in most papers. The usage of robust embedding schemes seems to indicate that both data need to be tightly coupled and that the entire transmitted data might be subject to various manipulations, since robust embedding is meant to make the embedded data robust against changes of the host data. Therefore it seems that an insecure channel between C. Vielhauer et al. ): BioID 2011, LNCS 6583, pp.
Uhl techniques in diﬀerent ﬂavours which have been also used to assess the impact of robust WM on iris recognition performance . Spatial and DCT based algorithms Bruyndonckx (shorthanded Bruyn) the Bruyndonckx algorithm operates on 8x8 blocks with modiﬁcations on the luminance values where each block is able to obtain one bit of information. Koch Uses a random sequence of concrete image positions. At this positions the DCT coeﬃcients of 8x8 blocks are used for embedding imposing a strict ordering.
A user is accepted if the matching score is less or equal to T and rejected otherwise. 4 Feature Selection Due to the physical capabilities of the digitizer tablets, not each of the currently considered features is appropriate for the hash value calculation. Some digitizer tablets, for instance, are not capable to record pen angle signals. Therefore, all angle dependent features result in a constant value of 0 in all samples. Some features are not suitable for biohash generation because of very high intra-class variance.