Biometric Liveness Detection: Challenges and Research Opportunities
Zahid Akhtar, Christian Micheloni, Gian Luca Foresti · IEEE Security & Privacy · 2015
In a spoofing attack, an impostor masquerades as a legitimate user by replicating that user's biometrics. Although methods exist to determine whether a live person or biometric artifact is in front of a biometric sensor, spoofing attacks remain a problem.