公开(公告)号：US10929515B2

公开(公告)日：2021-02-23

申请号：US16049933

申请日：2018-07-31

Applicant: Apple Inc.

Inventor： Deepti S. Prakash ,  Lucia E. Ballard ,  Jerrold V. Hauck ,  Feng Tang ,  Etai Littwin ,  Pavan Kumar Ansosalu Vasu ,  Gideon Littwin ,  Thorsten Gernoth ,  Lucie Kucerova ,  Petr Kostka ,  Steven P. Hotelling ,  Eitan Hirsh ,  Tal Kaitz ,  Jonathan Pokrass ,  Andrei Kolin ,  Moshe Laifenfeld ,  Matthew C. Waldon ,  Thomas P. Mensch ,  Lynn R. Youngs ,  Christopher G. Zeleznik ,  Michael R. Malone ,  Ziv Hendel ,  Ivan Krstic ,  Anup K. Sharma

IPC: G06F21/00 ,  G06F21/32 ,  G06K9/00 ,  H04L9/32 ,  H04W12/06 ,  H04L29/06 ,  G06F21/83 ,  H04L9/08

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.

公开(公告)号：US20200285875A1

公开(公告)日：2020-09-10

申请号：US16708770

申请日：2019-12-10

Applicant: Apple Inc.

Inventor： Eslam A. Mostafa ,  Haitao Guo ,  Feng Tang

IPC: G06K9/00 ,  G06F21/32 ,  G06K9/20

Abstract: Templates used for a facial recognition process for authentication of a user to use a device may be updated by the device as features of the user change over time. Features of the user may gradually change over time due to changes such as facial hair changes, haircuts, gaining/losing weight, and/or aging. Updating the templates used for the facial recognition process may allow the user to continue being authenticated as features of the user change without the need for additional enrollments of the user.

公开(公告)号：US20190080153A1

公开(公告)日：2019-03-14

申请号：US15900905

申请日：2018-02-21

Applicant: Apple Inc.

Inventor： Micah P. Kalscheur ,  Feng Tang

IPC: G06K9/00 ,  G06F21/32 ,  G06F17/30

Abstract: Subepidermal imaging of a face may be used to assess subepidermal features such as blood vessels (e.g., veins) when the device is attempting to authenticate a user in a facial recognition authentication process. Assessment of the subepidermal features may be used to distinguish between users that have closely related facial features (e.g., siblings or twins) in situations where the facial recognition authentication process has less certainty in a decision about recognition of the user's face as an authorized user.

公开(公告)号：US20190044723A1

公开(公告)日：2019-02-07

申请号：US16049933

申请日：2018-07-31

Applicant: Apple Inc.

Inventor： Deepti S. Prakash ,  Lucia E. Ballard ,  Jerrold V. Hauck ,  Feng Tang ,  Etai Littwin ,  Pavan Kumar Ansosalu Vasu ,  Gideon Littwin ,  Thorsten Gernoth ,  Lucie Kucerova ,  Petr Kostka ,  Steven P. Hotelling ,  Eitan Hirsh ,  Tal Kaitz ,  Jonathan Pokrass ,  Andrei Kolin ,  Moshe Laifenfeld ,  Matthew C. Waldon ,  Thomas P. Mensch ,  Lynn R. Youngs ,  Christopher G. Zeleznik ,  Michael R. Malone ,  Ziv Hendel ,  Ivan Krstic ,  Anup K. Sharma

IPC: H04L9/32 ,  G06F21/32 ,  H04L9/08 ,  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.