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Auflistung nach Schlagwort "thermal imaging"

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  • Konferenzbeitrag
    MobiBits: Multimodal Mobile Biometric Database
    (BIOSIG 2018 - Proceedings of the 17th International Conference of the Biometrics Special Interest Group, 2018) Bartuzi, Ewelina; Roszczewska, Katarzyna; Trokielewicz, Mateusz; Białobrzeski, Radosław
    This paper presents a novel database comprising representations of five different biometric characteristics, collected in a mobile, unconstrained or semi-constrained setting with three different mobile devices, including characteristics previously unavailable in existing datasets, namely hand images, thermal hand images, and thermal face images, all acquired with a mobile, off-the-shelf device. In addition to this collection of data we perform an extensive set of experiments providing insight on benchmark recognition performance that can be achieved with these data, carried out with existing commercial and academic biometric solutions. This is the first known to us mobile biometric database introducing samples of biometric traits such as thermal hand images and thermal face images. We hope that this contribution will make a valuable addition to the already existing databases and enable new experiments and studies in the field of mobile authentication. The MobiBits database is made publicly available to the research community at no cost for non-commercial purposes.
  • Konferenzbeitrag
    Towards robustness of keyboard-entered authentication factors with thermal wiping against thermographic attacks
    (Open Identity Summit 2022, 2022) Fritsch, Lothar; Mecaliff, Marie; Opdal, Kathinka W.; Rundgreen, Mathias; Sachse, Toril
    Many authentication methods use keyboard entry for one of their authentication factors. Keyboards factors have been compromised exploiting physical fingerprints, substances from fingers visible on keys, with acoustic recordings through mobile phones, and through video reflections captured by high-resolution cameras used for video conferencing. Heat transfer from human fingers to keypads is an additional attack channel that has been demonstrated. There are few mitigation measures published against this type of attack. This article summarizes the feasibility of thermographic attacks against computer keyboards and against door pin pads, as well as the efficiency of the scrubbing technique deployed in order to counter thermographic attacks. For this purpose, a series of experiments with small, mobile thermal cameras were carried out. We report findings such as time intervals and other constraints for successful laboratory observation of authentication factors, describe scrubbing methods and report the performance of those methods.