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.