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August 11, 2021 01:00 pm
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/KX12DCEmOSA/researchers-create-master-faces-to-bypass-facial-recognition
Researchers Create 'Master Faces' To Bypass Facial Recognition
An anonymous reader quotes a report from Motherboard: Researchers have demonstrated a method to create "master faces," computer generated faces that act like master keys for facial recognition systems, and can impersonate several identities with what the researchers claim is a high probability of success. In their paper (PDF), researchers at the Blavatnik School of Computer Science and the School of Electrical Engineering in Tel Aviv detail how they successfully created nine "master key" faces that are able to impersonate almost half the faces in a dataset of three leading face recognition systems. The researchers say their results show these master faces can successfully impersonate over 40 percent of the population in these systems without any additional information or data of the person they are identifying. The researchers tested their methods against three deep face recognition systems -- Dlib, FaceNet, and SphereFace. Lead author Ron Shmelkin told Motherboard that they used these systems because they are capable of recognizing "high-level semantic features" of the faces that are more sophisticated than just skin color or lighting effects. The researchers used a StyleGAN to generate the faces and then used an evolutionary algorithm and neural network to optimize and predict their success. The evolutionary strategy then creates iterations, or generations, of candidates of varying success rates. The researchers then used the algorithm to train a neural network, to classify the best candidates as the most promising ones. This is what teaches it to predict candidates' success and, in turn, direct the algorithm to generate better candidates with a higher probability of passing. The researchers even predict that their master faces could be animated using deepfake technology to bypass liveness detection, which is used to determine whether a biometric sample is real or fake.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/KX12DCEmOSA/researchers-create-master-faces-to-bypass-facial-recognition
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