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Face anti-spoofing (FAS) based on domain generalization (DG) has been recently studied to improve the generalization on unseen scenarios. Previous methods typically rely on domain labels to align the distribution of each domain for learning…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Qianyu Zhou , Ke-Yue Zhang , Taiping Yao , Xuequan Lu , Ran Yi , Shouhong Ding , Lizhuang Ma

Existing methods based on meta-learning predict novel-class labels for (target domain) testing tasks via meta knowledge learned from (source domain) training tasks of base classes. However, most existing works may fail to generalize to…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Yanxu Hu , Andy J. Ma

Face recognition networks encode information about sensitive attributes while being trained for identity classification. Such encoding has two major issues: (a) it makes the face representations susceptible to privacy leakage (b) it appears…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Prithviraj Dhar , Joshua Gleason , Aniket Roy , Carlos D. Castillo , Rama Chellappa

Meta learning is a promising technique for solving few-shot fault prediction problems, which have attracted the attention of many researchers in recent years. Existing meta-learning methods for time series prediction, which predominantly…

Machine Learning · Computer Science 2023-11-07 Hai Su , Jiajun Hu , Songsen Yu

Multimodal Face Anti-Spoofing (FAS) methods, which integrate multiple visual modalities, often suffer even more severe performance degradation than unimodal FAS when deployed in unseen domains. This is mainly due to two overlooked risks…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Xun Lin , Shuai Wang , Yi Yu , Zitong Yu , Jiale Zhou , Yizhong Liu , Xiaochun Cao , Alex Kot , Yefeng Zheng

While the performance of face recognition systems has improved significantly in the last decade, they are proved to be highly vulnerable to presentation attacks (spoofing). Most of the research in the field of face presentation attack…

Computer Vision and Pattern Recognition · Computer Science 2019-07-10 Olegs Nikisins , Anjith George , Sebastien Marcel

Domain generalization (DG) based Face Anti-Spoofing (FAS) aims to improve the model's performance on unseen domains. Existing methods either rely on domain labels to align domain-invariant feature spaces, or disentangle generalizable…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Ajian Liu , Shuai Xue , Jianwen Gan , Jun Wan , Yanyan Liang , Jiankang Deng , Sergio Escalera , Zhen Lei

The detection of AI-generated faces is commonly approached as a binary classification task. Nevertheless, the resulting detectors frequently struggle to adapt to novel AI face generators, which evolve rapidly. In this paper, we describe an…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Mian Zou , Baosheng Yu , Yibing Zhan , Kede Ma

Ethnic bias has proven to negatively affect the performance of face recognition systems, and it remains an open research problem in face anti-spoofing. In order to study the ethnic bias for face anti-spoofing, we introduce the largest up to…

Computer Vision and Pattern Recognition · Computer Science 2020-03-12 Ajian Li , Zichang Tan , Xuan Li , Jun Wan , Sergio Escalera , Guodong Guo , Stan Z. Li

Real-world face recognition systems are vulnerable to both physical presentation attacks (PAs) and digital forgery attacks (DFs). We aim to achieve comprehensive protection of biometric data by implementing a unified physical-digital…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Jiabao Guo , Yadian Wang , Hui Ma , Yuhao Fu , Ju Jia , Hui Liu , Shengeng Tang , Lechao Cheng , Yunfeng Diao , Ajian Liu

Person re-identification (Re-ID) models usually show a limited performance when they are trained on one dataset and tested on another dataset due to the inter-dataset bias (e.g. completely different identities and backgrounds) and the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Jiajie Tian , Zhu Teng , Rui Li , Yan Li , Baopeng Zhang , Jianping Fan

This work asks: with abundant, unlabeled real faces, how to learn a robust and transferable facial representation that boosts various face security tasks with respect to generalization performance? We make the first attempt and propose a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Gaojian Wang , Feng Lin , Tong Wu , Zhenguang Liu , Zhongjie Ba , Kui Ren

The study of bias in Machine Learning is receiving a lot of attention in recent years, however, few only papers deal explicitly with the problem of race bias in face anti-spoofing. In this paper, we present a systematic study of race bias…

Computer Vision and Pattern Recognition · Computer Science 2022-10-12 Latifah Abduh , Ioannis Ivrissimtzis

Biometric systems are vulnerable to Presentation Attacks (PA) performed using various Presentation Attack Instruments (PAIs). Even though there are numerous Presentation Attack Detection (PAD) techniques based on both deep learning and…

Computer Vision and Pattern Recognition · Computer Science 2023-06-05 Zhe Kong , Wentian Zhang , Feng Liu , Wenhan Luo , Haozhe Liu , Linlin Shen , Raghavendra Ramachandra

Using printed photograph and replaying videos of biometric modalities, such as iris, fingerprint and face, are common attacks to fool the recognition systems for granting access as the genuine user. With the growing online person-to-person…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Joel Stehouwer , Amin Jourabloo , Yaojie Liu , Xiaoming Liu

Autonomous agents interacting with the real world need to learn new concepts efficiently and reliably. This requires learning in a low-data regime, which is a highly challenging problem. We address this task by introducing a fast…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Ardhendu Shekhar Tripathi , Martin Danelljan , Luc Van Gool , Radu Timofte

Multimodal few-shot learning is challenging due to the large domain gap between vision and language modalities. Existing methods are trying to communicate visual concepts as prompts to frozen language models, but rely on hand-engineered…

Computer Vision and Pattern Recognition · Computer Science 2023-03-01 Ivona Najdenkoska , Xiantong Zhen , Marcel Worring

Face Morphing Attack Detection (MAD) is a critical challenge in face recognition security, where attackers can fool systems by interpolating the identity information of two or more individuals into a single face image, resulting in samples…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Eduarda Caldeira , Fadi Boutros , Naser Damer

Along with the widespread use of face recognition systems, their vulnerability has become highlighted. While existing face anti-spoofing methods can be generalized between attack types, generic solutions are still challenging due to the…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Kaicheng Li , Hongyu Yang , Binghui Chen , Pengyu Li , Biao Wang , Di Huang

Face authentication systems require a robust anti-spoofing module as they can be deceived by fabricating spoof images of authorized users. Most recent face anti-spoofing methods rely on optimized architectures and training objectives to…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Davide Belli , Debasmit Das , Bence Major , Fatih Porikli