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Facial biometrics has been recently received tremendous attention as a convenient replacement for traditional authentication systems. Consequently, detecting malicious attempts has found great significance, leading to extensive studies in…

Computer Vision and Pattern Recognition · Computer Science 2022-01-03 Arian Sabaghi , Marzieh Oghbaie , Kooshan Hashemifard , Mohammad Akbari

Multimodal large language models (MLLMs) have achieved remarkable performance across diverse vision-and-language tasks. However, their potential in face recognition remains underexplored. In particular, the performance of open-source MLLMs…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Hatef Otroshi Shahreza , Sébastien Marcel

Face Anti-spoofing (FAS) is essential to secure face recognition systems from various physical attacks. However, recent research generally focuses on short-distance applications (i.e., phone unlocking) while lacking consideration of…

Computer Vision and Pattern Recognition · Computer Science 2023-01-04 Hao Fang , Ajian Liu , Jun Wan , Sergio Escalera , Chenxu Zhao , Xu Zhang , Stan Z. Li , Zhen Lei

Face anti-spoofing is crucial to the security of face recognition systems. Most previous methods formulate face anti-spoofing as a supervised learning problem to detect various predefined presentation attacks, which need large scale…

Computer Vision and Pattern Recognition · Computer Science 2021-09-08 Yunxiao Qin , Chenxu Zhao , Xiangyu Zhu , Zezheng Wang , Zitong Yu , Tianyu Fu , Feng Zhou , Jingping Shi , Zhen Lei

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

Face Anti-Spoofing (FAS) remains challenging due to the requirement for robust domain generalization across unseen environments. While recent trends leverage Vision-Language Models (VLMs) for semantic supervision, these multimodal…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Mika Feng , Pierre Gallin-Martel , Koichi Ito , Takafumi Aoki

Face anti-spoofing (FAS) is an essential mechanism for safeguarding the integrity of automated face recognition systems. Despite substantial advancements, the generalization of existing approaches to real-world applications remains…

Computer Vision and Pattern Recognition · Computer Science 2023-05-08 Dong Wang , Jia Guo , Qiqi Shao , Haochi He , Zhian Chen , Chuanbao Xiao , Ajian Liu , Sergio Escalera , Hugo Jair Escalante , Zhen Lei , Jun Wan , Jiankang Deng

As face recognition is widely used in diverse security-critical applications, the study of face anti-spoofing (FAS) has attracted more and more attention. Several FAS methods have achieved promising performances if the attack types in the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Yu-Chun Wang , Chien-Yi Wang , Shang-Hong Lai

Multimodal Large Language Models (MLLMs) demonstrate impressive problem-solving abilities across a wide range of tasks and domains. However, their capacity for face understanding has not been systematically studied. To address this gap, we…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Kartik Narayan , Vibashan VS , Vishal M. Patel

The rapid advancement of deepfake technologies has sparked widespread public concern, particularly as face forgery poses a serious threat to public information security. However, the unknown and diverse forgery techniques, varied facial…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Zhengchao Huang , Bin Xia , Zicheng Lin , Zhun Mou , Wenming Yang , Jiaya Jia

Reliable face forgery detection algorithms are crucial for countering the growing threat of deepfake-driven disinformation. Previous research has demonstrated the potential of Multimodal Large Language Models (MLLMs) in identifying…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Siran Peng , Zipei Wang , Li Gao , Xiangyu Zhu , Tianshuo Zhang , Ajian Liu , Haoyuan Zhang , Zhen Lei

With the rapid growth usage of face recognition in people's daily life, face anti-spoofing becomes increasingly important to avoid malicious attacks. Recent face anti-spoofing models can reach a high classification accuracy on multiple…

Computer Vision and Pattern Recognition · Computer Science 2025-09-08 Haoyuan Zhang , Xiangyu Zhu , Li Gao , Jiawei Pan , Kai Pang , Guoying Zhao , Zhen Lei

Recently, vision transformer based multimodal learning methods have been proposed to improve the robustness of face anti-spoofing (FAS) systems. However, multimodal face data collected from the real world is often imperfect due to missing…

Computer Vision and Pattern Recognition · Computer Science 2023-07-27 Zitong Yu , Rizhao Cai , Yawen Cui , Ajian Liu , Changsheng Chen

Face morphing attacks threaten biometric verification, yet most morphing attack detection (MAD) systems require task-specific training and generalize poorly to unseen attack types. Meanwhile, open-source multimodal large language models…

Computer Vision and Pattern Recognition · Computer Science 2026-02-18 Marija Ivanovska , Vitomir Štruc

Face anti-spoofing (FAS) plays a vital role in securing face recognition systems from the presentation attacks (PAs). As more and more realistic PAs with novel types spring up, it is necessary to develop robust algorithms for detecting…

Computer Vision and Pattern Recognition · Computer Science 2020-11-25 Zitong Yu , Xiaobai Li , Jingang Shi , Zhaoqiang Xia , Guoying Zhao

Face anti-spoofing (FAS) plays a vital role in securing face recognition systems from presentation attacks. Existing multi-modal FAS methods rely on stacked vanilla convolutions, which is weak in describing detailed intrinsic information…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Zitong Yu , Yunxiao Qin , Xiaobai Li , Zezheng Wang , Chenxu Zhao , Zhen Lei , Guoying Zhao

Face anti-spoofing (FAS) and adversarial detection (FAD) have been regarded as critical technologies to ensure the safety of face recognition systems. However, due to limited practicality, complex deployment, and the additional…

Computer Vision and Pattern Recognition · Computer Science 2024-08-28 Jiawei Chen , Xiao Yang , Yinpeng Dong , Hang Su , Zhaoxia Yin

Multi-modal face anti-spoofing (FAS) aims to detect genuine human presence by extracting discriminative liveness cues from multiple modalities, such as RGB, infrared (IR), and depth images, to enhance the robustness of biometric…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Jun-Xiong Chong , Fang-Yu Hsu , Ming-Tsung Hsu , Yi-Ting Lin , Kai-Heng Chien , Chiou-Ting Hsu , Pei-Kai Huang

Face Anti-spoofing (FAS) is essential to secure face recognition systems from various physical attacks. However, most of the studies lacked consideration of long-distance scenarios. Specifically, compared with FAS in traditional scenes such…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Hao Fang , Ajian Liu , Jun Wan , Sergio Escalera , Hugo Jair Escalante , Zhen Lei

Face anti-spoofing (FAS) and face forgery detection play vital roles in securing face biometric systems from presentation attacks (PAs) and vicious digital manipulation (e.g., deepfakes). Despite promising performance upon large-scale data…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Zitong Yu , Rizhao Cai , Zhi Li , Wenhan Yang , Jingang Shi , Alex C. Kot