Face recognition

Face is one of the most exploited human characteristics in automatic identification systems, being used both in access control security systems, or for identifying suspects, just to cite a few examples. Mainly in biometric access control systems, facial identification of a subject may be circumvented from photos, videos or masks, allowing for impostors to access such systems. These attacks occur by capturing an image of genuine face, recording eye or mouth movements of a user granted to access, or even masks made especially to mimic a genuine user of the system. Because of that, face spoofing detection methods become essential to support face recognition systems in order to distinguish a false image (image of an image or image of a video) from a real one (image of a user).