Results 31 to 40 of about 7,700 (189)

The 2nd competition on counter measures to 2D face spoofing attacks [PDF]

open access: yes, 2013
Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works ...
Ahmad, Iftikhar   +34 more
core   +3 more sources

A Cascade Face Spoofing Detector Based on Face Anti-Spoofing R-CNN and Improved Retinex LBP

open access: yesIEEE Access, 2019
In consideration of secure and convenient, face gains increasing attention in variety of fields during the past decades. Since human face is most accessible from our daily life and preserves the richest information, face based biometric systems are ...
Haonan Chen   +3 more
doaj   +1 more source

Self-Domain Adaptation for Face Anti-Spoofing

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2021
Although current face anti-spoofing methods achieve promising results under intra-dataset testing, they suffer from poor generalization to unseen attacks. Most existing works adopt domain adaptation (DA) or domain generalization (DG) techniques to address this problem.
Jingjing Wang 0005   +5 more
openaire   +2 more sources

Human abnormal behavior impact on speaker verification systems [PDF]

open access: yes, 2018
Human behavior plays a major role in improving human-machine communication. The performance must be affected by abnormal behavior as systems are trained using normal utterances.
Ilk, Hakki Gokhan   +3 more
core   +1 more source

Consistency Regularization for Deep Face Anti-Spoofing

open access: yesCoRR, 2021
Face anti-spoofing (FAS) plays a crucial role in securing face recognition systems. Empirically, given an image, a model with more consistent output on different views of this image usually performs better, as shown in Fig.1. Motivated by this exciting observation, we conjecture that encouraging feature consistency of different views may be a promising
Zezheng Wang   +9 more
openaire   +2 more sources

Face anti‐spoofing with refined triplet loss and multi‐level attention constraint network

open access: yesElectronics Letters, 2021
One critical issue for existing face recognition (FR) systems is to ensure its accuracy and robustness, which calls for the development of face anti‐spoofing (FAS) algorithms to work against presentation attacks (PA).
Xingzhong Nong, Ying Zeng, Haifeng Hu
doaj   +1 more source

Directional Difference Convolution and Its Application on Face Anti-Spoofing

open access: yesMathematics, 2022
In practical application, facial image recognition is vulnerable to be attacked by photos, videos, etc., while some currently used artificial feature extractors in machine learning, such as activity detection, texture descriptors, and distortion ...
Mingye Yang   +3 more
doaj   +1 more source

A Novel Feature Descriptor for Face Anti-Spoofing Using Texture Based Method

open access: yesCybernetics and Information Technologies, 2020
In this paper we propose a novel approach for face anti-spoofing called Extended Division Directional Ternary Co-relation Pattern (EDDTCP). The EDDTCP encodes co-relation of ternary edges based on the centre pixel gray values with its immediate ...
Raghavendra R. J., Kunte R. Sanjeev
doaj   +1 more source

A Face Spoofing Detection Method Based on Domain Adaptation and Lossless Size Adaptation

open access: yesIEEE Access, 2020
In this paper, a face spoofing detection method called the Fully Convolutional Network with Domain Adaptation and Lossless Size Adaptation (FCN-DA-LSA) is proposed.
Wenyun Sun   +3 more
doaj   +1 more source

Suppressing Spoof-Irrelevant Factors for Domain-Agnostic Face Anti-Spoofing

open access: yesIEEE Access, 2021
Face anti-spoofing aims to prevent false authentications of face recognition systems by distinguishing whether an image is originated from a human face or a spoof medium.
Taewook Kim, Yonghyun Kim
doaj   +1 more source

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