CONF Bhattacharjee_BIOSIG2017_2017/IDIAP What you can't see can help you -- extended-range imaging for 3D-mask presentation attack detection Bhattacharjee, Sushil Marcel, Sébastien 3D Masks Face Presentation Attack Detection LWIR NIR EXTERNAL http://publications.idiap.ch/attachments/papers/2017/Bhattacharjee_BIOSIG2017_2017.pdf PUBLIC Proceedings of the 16th International Conference on Biometrics Special Interest Group. Darmstadt (Germany) 2017 Gesellschaft fuer Informatik e.V. (GI) 1617-5468 978-3-88579-664-0 We show how imagery in NIR and LWIR bandwidths can be used to detect 2D as well as mask based presentation attacks on face-recognition systems.