| 摘要 |
There is provided an anti-spoofing method for a vascular recognition system, the method comprising the steps of: illuminating an entity which is presented to the vascular recognition system, with light which has wavelengths in a first wavelength range only (1 ); capturing a sequence of images of the entity over a time period, when the entity is illuminated with light which has wavelengths in a first wavelength range only (2); computing a plurality of first binary descriptors representative of the texture of at least one of said images in the sequence of images (3) and of the manner in which some elements of image change between successive images in the sequence, over the whole sequence (4); illuminating the entity which is presented to the vascular recognition system, with light which has wavelengths in a second wavelength range only (5), capturing an image of the entity, when the entity is illuminated with light which has wavelengths in a second wavelength range only, to provide at least one static image (6); computing a second binary descriptors for each of said at least one static images (7); determining if the entity which is presented to the vascular recognition system is a spoof, based on the plurality of first dynamic binary descriptors and second binary descriptors (8). |
