DepthFake: Spoofing 3D Face Authentication with a 2D Photo
Face authentication has been widely used in access control, and the latest 3D face
authentication systems employ 3D liveness detection techniques to cope with the photo …
authentication systems employ 3D liveness detection techniques to cope with the photo …
Multi-modal Spoofing Attacks on 3D Face Liveness Detection via a Single 2D Photo
Face authentication technology has been widely used in physical access control to critical
infrastructures. The security of a face authentication system has been threatened by photo …
infrastructures. The security of a face authentication system has been threatened by photo …
[HTML][HTML] OAM 光束短距离自由空间传输特性的实验研究
席瑞， 朱冰 - 光电工程, 2019 - cn.oejournal.org
实验研究了光轨道角动量(OAM) 光束的短距离自由空间传输特性. 在实验装置中使用数字微镜
器件(DMD) 产生OAM 光束, 传输距离为室内0~ 50 m. 在接收端使用空间光束模场分析仪测量 …
器件(DMD) 产生OAM 光束, 传输距离为室内0~ 50 m. 在接收端使用空间光束模场分析仪测量 …
[PDF][PDF] Experimental study on short-distance free-space transmission characteristics of OAM beam
R Xi, B Zhu - Opto-Electronic Engineering, 2019 - researching.cn
The short-distance free-space transmission characteristics of the optical orbital angular
momentum (OAM) beam were experimentally studied. The transmission distance is 0∼ 50 …
momentum (OAM) beam were experimentally studied. The transmission distance is 0∼ 50 …