公开(公告)号：WO2019027503A1

公开(公告)日：2019-02-07

申请号：PCT/US2018/015498

申请日：2018-01-26

Applicant: APPLE INC.

Inventor： BALLARD, Lucia E. ,  HAUCK, Jerrold V. ,  PRAKASH, Deepti Sunder ,  TANG, Feng ,  LITTWIN, Etai ,  VASU, Pavan Kumar Anasosalu ,  LITTWIN, Gideon ,  GERNOTH, Thorsten ,  KUCEROVA, Lucie ,  KOSTKA, Petr ,  HOTELLING, Steve ,  HIRSH, Eitan ,  KAITZ, Tal ,  POKRASS, Jonathan ,  KOLIN, Andrei ,  LAIFENFELD, Moshe ,  WALDON, Matthew C. ,  MENSCH, Thomas P. ,  YOUNGS, Lynn ,  ZELEZNIK, Chris ,  MALONE, Michael ,  HENDEL, Ziv ,  KRSTIC, Ivan ,  SHARMA, Anup K.

IPC: G06K9/20 ,  G06K9/00

Abstract: Techniques are disclosed relating to biometric authentication, e.g., facial recognition. In some embodiments, a device is configured to verify that image data from a camera unit exhibits a pseudo-random sequence of image capture modes and/or a probing pattern of illumination points (e.g., from lasers in a depth capture mode) before authenticating a user based on recognizing a face in the image data. In some embodiments, a secure circuit may control verification of the sequence and/or the probing pattern. In some embodiments, the secure circuit may verify frame numbers, signatures, and/or nonce values for captured image information. In some embodiments, a device may implement one or more lockout procedures in response to biometric authentication failures. The disclosed techniques may reduce or eliminate the effectiveness of spoofing and/or replay attacks, in some embodiments.