公开(公告)号：US12300035B1

公开(公告)日：2025-05-13

申请号：US17708492

申请日：2022-03-30

Applicant: Amazon Technologies, Inc.

Inventor： Xiang Xu ,  Mingze Xu ,  Zheng Zhang ,  Yuanjun Xiong ,  Wei Xia ,  Jonathan Wu ,  Joseph P Tighe

IPC: G06V40/40 ,  G06T7/00 ,  G06T7/20 ,  G06T7/70 ,  G06T11/00 ,  G06V10/764 ,  G06V10/82 ,  G06V20/40 ,  G06V40/16

Abstract: Techniques for liveness detection using a motion, face, and context cues. The techniques can be implemented to prevent against successful presentation attacks, video injection attacks, and deepfake attacks. In some examples, the techniques encompass receiving a set of video frames from a personal computing device. A first liveness determination can be made using a motion-based model based on the received video frames. A second liveness determination can be made using a face-based model based on the received video frames. A third liveness determination can be made using a context-based model based on the received video frames. A final liveness determination can be made based on the first, second and third liveness determinations.

公开(公告)号：US12039027B1

公开(公告)日：2024-07-16

申请号：US17709262

申请日：2022-03-30

Applicant: Amazon Technologies, Inc.

Inventor： Xiang Xu ,  Hao Zhou ,  Jonathan Wu ,  Joseph P Tighe

IPC: G06F21/32

CPC classification number: G06F21/32

Abstract: A system for evaluating a biometric authorization system is described. The biometric authorization system is configured to apply a facial recognition model to image data to make an authorization determination based on detection of synthesized image data and based on matching a reference image to the image data. The system is also configured to execute one or more synthetic image data attack protocols to evaluate the biometric authorization system. The system also generates, according to one or more synthetic image data generation techniques, an evaluation set of image data comprising synthesized representations of a target and sends one or more authorization requests using the evaluation set of image data to the biometric authorization system. The system generates an evaluation of the biometric authorization system for synthetic image data attack analysis based on respective responses to the one or more authorization requests received from the biometric authorization system.