collaborators

5 papers

cs.CV2025

Benchmarking Unified Face Attack Detection via Hierarchical Prompt Tuning

Ajian Liu, Haocheng Yuan, Xiao Guo +13

PAD and FFD are proposed to protect face data from physical media-based Presentation Attacks and digital editing-based DeepFakes, respectively. However, isolated training of these…

cs.CV2025

Mixture-of-Attack-Experts with Class Regularization for Unified Physical-Digital Face Attack Detection

Shunxin Chen, Ajian Liu, Junze Zheng +4

Facial recognition systems in real-world scenarios are susceptible to both digital and physical attacks. Previous methods have attempted to achieve classification by learning a com…

cs.CV2025

FA^{3}-CLIP: Frequency-Aware Cues Fusion and Attack-Agnostic Prompt Learning for Unified Face Attack Detection

Yongze Li, Ning Li, Ajian Liu +7

Facial recognition systems are vulnerable to physical (e.g., printed photos) and digital (e.g., DeepFake) face attacks. Existing methods struggle to simultaneously detect physical…

cs.CV2024

La-SoftMoE CLIP for Unified Physical-Digital Face Attack Detection

Hang Zou, Chenxi Du, Hui Zhang +4

Facial recognition systems are susceptible to both physical and digital attacks, posing significant security risks. Traditional approaches often treat these two attack types separa…

cs.CV2024

A Unified Framework for Iris Anti-Spoofing: Introducing Iris Anti-Spoofing Cross-Domain-Testing Protocol and Masked-MoE Method

Hang Zou, Chenxi Du, Ajian Liu +6

Iris recognition is widely used in high-security scenarios due to its stability and distinctiveness. However, iris images captured by different devices exhibit certain and device-r…