CASIA-SURF: A Dataset and Benchmark for Large-scale Multi-modal Face Anti-spoofing. - Shifeng Zhang; Xiaobo Wang 001; Ajian Liu 001; Chenxu Zhao; Jun Wan 001; Sergio Escalera; Hailin Shi; Zezheng Wang; Stan Z. Li (CoRR, 2018)

Multi-Modal Face Anti-Spoofing Attack Detection Challenge at CVPR2019. - Ajian Liu 001; Jun Wan 001; Sergio Escalera; Hugo Jair Escalante; Zichang Tan; Qi Yuan; Kai Wang 036; Chi Lin 002; Guodong Guo; Isabelle Guyon; Stan Z. Li (CVPR Workshops, 2019)

A Dataset and Benchmark for Large-Scale Multi-Modal Face Anti-Spoofing. - Shifeng Zhang; Xiaobo Wang 001; Ajian Liu 001; Chenxu Zhao; Jun Wan 001; Sergio Escalera; Hailin Shi; Zezheng Wang; Stan Z. Li (CVPR, 2019)

Person Re-Identification via Feature Representation Learning Based on Verification Sample Constrain. - Ruifeng Zhao; Ajian Liu 001; Yanyan Liang 001; Haozhi Huang 002 (ICMLC, 2019)

Static and Dynamic Fusion for Multi-modal Cross-ethnicity Face Anti-spoofing. - Ajian Liu 001; Zichang Tan; Xuan Li; Jun Wan 001; Sergio Escalera; Guodong Guo; Stan Z. Li (CoRR, 2019)

3DPC-Net: 3D Point Cloud Network for Face Anti-spoofing. - Xuan Li; Jun Wan 001; Yi Jin 001; Ajian Liu 001; Guodong Guo; Stan Z. Li (IJCB, 2020)

CASIA-SURF CeFA: A Benchmark for Multi-modal Cross-ethnicity Face Anti-spoofing. - Ajian Liu 001; Zichang Tan; Xuan Li; Jun Wan 001; Sergio Escalera; Guodong Guo; Stan Z. Li (CoRR, 2020)

Cross-ethnicity Face Anti-spoofing Recognition Challenge: A Review. - Ajian Liu 001; Xuan Li; Jun Wan 001; Sergio Escalera; Hugo Jair Escalante; Meysam Madadi; Yi Jin 001; Zhuoyuan Wu; Xiaogang Yu; Zichang Tan; Qi Yuan; Ruikun Yang; et al. (CoRR, 2020)

CASIA-SURF: A Large-Scale Multi-Modal Benchmark for Face Anti-Spoofing. - Shifeng Zhang; Ajian Liu 001; Jun Wan 001; Yanyan Liang 001; Guodong Guo; Sergio Escalera; Hugo Jair Escalante; Stan Z. Li (IEEE Trans. Biom. Behav. Identity Sci., 2020)

3D High-Fidelity Mask Face Presentation Attack Detection Challenge. - Ajian Liu 001; Chenxu Zhao; Zitong Yu; Anyang Su; Xing Liu; Zijian Kong; Jun Wan 001; Sergio Escalera; Hugo Jair Escalante; Zhen Lei 001; Guodong Guo (ICCVW, 2021)

CASIA-SURF CeFA: A Benchmark for Multi-modal Cross-ethnicity Face Anti-spoofing. - Ajian Liu 001; Zichang Tan; Jun Wan 001; Sergio Escalera; Guodong Guo; Stan Z. Li (WACV, 2021)

Cross-ethnicity face anti-spoofing recognition challenge: A review. - Ajian Liu 001; Xuan Li; Jun Wan 001; Yanyan Liang 001; Sergio Escalera; Hugo Jair Escalante; Meysam Madadi; Yi Jin 001; Zhuoyuan Wu; Xiaogang Yu; Zichang Tan; Qi Yuan; et al. (IET Biom., 2021)

Face Anti-Spoofing via Adversarial Cross-Modality Translation. - Ajian Liu 001; Zichang Tan; Jun Wan 001; Yanyan Liang 001; Zhen Lei 001; Guodong Guo; Stan Z. Li (IEEE Trans. Inf. Forensics Secur., 2021)

Disentangling Facial Pose and Appearance Information for Face Anti-spoofing. - Ajian Liu 001; Jun Wan 001; Ning Jiang; Hongbin Wang; Yanyan Liang 001 (ICPR, 2022)

MA-ViT: Modality-Agnostic Vision Transformers for Face Anti-Spoofing. - Ajian Liu 001; Yanyan Liang 001 (IJCAI, 2022)

Exploring the Limits of Hard Example Mining for ID Document to Selfie Matching. - Zichang Tan; Ajian Liu 001; Jun Wan 001; Zhen Lei 001; Guodong Guo (IEEE Trans. Biom. Behav. Identity Sci., 2022)

Contrastive Context-Aware Learning for 3D High-Fidelity Mask Face Presentation Attack Detection. - Ajian Liu 001; Chenxu Zhao; Zitong Yu; Jun Wan 001; Anyang Su; Xing Liu; Zichang Tan; Sergio Escalera; Junliang Xing; Yanyan Liang 001; Guodong Guo; Zhen Lei 001; et al. (IEEE Trans. Inf. Forensics Secur., 2022)

Cross-Batch Hard Example Mining With Pseudo Large Batch for ID vs. Spot Face Recognition. - Zichang Tan; Ajian Liu 001; Jun Wan 001; Hao Li 030; Zhen Lei 001; Guodong Guo; Stan Z. Li (IEEE Trans. Image Process., 2022)

Surveillance Face Presentation Attack Detection Challenge. - Hao Fang; Ajian Liu 001; Jun Wan 001; Sergio Escalera; Hugo Jair Escalante; Zhen Lei 001 (CVPR Workshops, 2023)

Attack-Agnostic Deep Face Anti-Spoofing. - Ajian Liu 001; Zichang Tan; Yanyan Liang 001; Jun Wan 001 (CVPR Workshops, 2023)

Wild Face Anti-Spoofing Challenge 2023: Benchmark and Results. - Dong Wang; Jia Guo 003; Qiqi Shao; Haochi He; Zhian Chen; Chuanbao Xiao; Ajian Liu 001; Sergio Escalera; Hugo Jair Escalante; Zhen Lei 001; Jun Wan 001; Jiankang Deng (CVPR Workshops, 2023)

Flexible-Modal Face Anti-Spoofing: A Benchmark. - Zitong Yu; Ajian Liu 001; Chenxu Zhao; Kevin H. M. Cheng; Xu Cheng 003; Guoying Zhao 001 (CVPR Workshops, 2023)

FM-ViT: Flexible Modal Vision Transformers for Face Anti-Spoofing. - Ajian Liu 001; Zichang Tan; Zitong Yu; Chenxu Zhao; Jun Wan 001; Yanyan Liang 001; Zhen Lei 001; Du Zhang; Stan Z. Li; Guodong Guo (IEEE Trans. Inf. Forensics Secur., 2023)

Multi-Domain Incremental Learning for Face Presentation Attack Detection. - Keyao Wang; Guosheng Zhang; Haixiao Yue; Ajian Liu 001; Gang Zhang; Haocheng Feng; Junyu Han; Errui Ding; Jingdong Wang 001 (AAAI, 2024)

Joint Physical-Digital Facial Attack Detection Via Simulating Spoofing Clues. - Xianhua He; Dashuang Liang; Song Yang; Zhanlong Hao; Hui Ma; Binjie Mao; Xi Li; Yao Wang; Pengfei Yan; Ajian Liu 001 (CVPR Workshops, 2024)

CFPL-FAS: Class Free Prompt Learning for Generalizable Face Anti-Spoofing. - Ajian Liu 001; Shuai Xue; Jianwen Gan; Jun Wan 001; Yanyan Liang 001; Jiankang Deng; Sergio Escalera; Zhen Lei 001 (CVPR, 2024)

Unified Physical-Digital Attack Detection Challenge. - Haocheng Yuan; Ajian Liu 001; Junze Zheng; Jun Wan 001; Jiankang Deng; Sergio Escalera; Hugo Jair Escalante; Isabelle Guyon; Zhen Lei 001 (CVPR Workshops, 2024)

VL-FAS: Domain Generalization via Vision-Language Model For Face Anti-Spoofing. - Hao Fang; Ajian Liu 001; Ning Jiang; Quan Lu; Guoqing Zhao; Jun Wan 001 (ICASSP, 2024)

CPL-CLIP: Compound Prompt Learning for Flexible-Modal Face Anti-Spoofing. - Ying Zhang; Xiangyu Zhu 001; Ajian Liu 001; Xun Lin; Jun Wan 001; Jing Zhang; Zhen Lei 001 (IJCB, 2024)

La-SoftMoE CLIP for Unified Physical-Digital Face Attack Detection. - Hang Zou; Chenxi Du; Hui Zhang; Yuan Zhang 023; Ajian Liu 001; Jun Wan 001; Zhen Lei 001 (IJCB, 2024)

Unified Physical-Digital Face Attack Detection. - Hao Fang; Ajian Liu 001; Haocheng Yuan; Junze Zheng; Dingheng Zeng; Yanhong Liu; Jiankang Deng; Sergio Escalera; Xiaoming Liu 002; Jun Wan 001; Zhen Lei 001 (IJCAI, 2024)

HideMIA: Hidden Wavelet Mining for Privacy-Enhancing Medical Image Analysis. - Xun Lin; Yi Yu 011; Zitong Yu; Ruohan Meng; Jiale Zhou 001; Ajian Liu 001; Yizhong Liu; Shuai Wang 049; Wenzhong Tang; Zhen Lei 001; Alex C. Kot (ACM Multimedia, 2024)

FM-CLIP: Flexible Modal CLIP for Face Anti-Spoofing. - Ajian Liu 001; Hui Ma; Junze Zheng; Haocheng Yuan; Xiaoyuan Yu; Yanyan Liang 001; Sergio Escalera; Jun Wan 001; Zhen Lei 001 (ACM Multimedia, 2024)

A Unified Framework for Iris Anti-Spoofing: Introducing IrisGeneral Dataset and Masked-MoE Method. - Hang Zou; Chenxi Du; Ajian Liu 001; Yuan Zhang 023; Jing Liu; Mingchuan Yang; Jun Wan 001; Hui Zhang (CoRR, 2024)

DAAD: Dynamic Analysis and Adaptive Discriminator for Fake News Detection. - Xinqi Su; Yawen Cui; Ajian Liu 001; Xun Lin; Yuhao Wang; Haochen Liang; Wenhui Li; Zitong Yu (CoRR, 2024)

TASAR: Transferable Attack on Skeletal Action Recognition. - Yunfeng Diao; Baiqi Wu; Ruixuan Zhang; Ajian Liu 001; Xingxing Wei; Meng Wang 001; He Wang 002 (CoRR, 2024)

Surveillance Face Anti-Spoofing. - Hao Fang; Ajian Liu 001; Jun Wan 001; Sergio Escalera; Chenxu Zhao; Xu Zhang; Stan Z. Li; Zhen Lei 001 (IEEE Trans. Inf. Forensics Secur., 2024)

CA-MoEiT: Generalizable Face Anti-spoofing via Dual Cross-Attention and Semi-fixed Mixture-of-Expert. - Ajian Liu 001 (Int. J. Comput. Vis., 2024)

Mixture-of-Attack-Experts with Class Regularization for Unified Physical-Digital Face Attack Detection. - Shunxin Chen; Ajian Liu 001; Junze Zheng; Jun Wan 001; Kailai Peng; Sergio Escalera; Zhen Lei 001 (AAAI, 2025)

Interpretable Face Anti-Spoofing: Enhancing Generalization with Multimodal Large Language Models. - Guosheng Zhang; Keyao Wang; Haixiao Yue; Ajian Liu 001; Gang Zhang; Kun Yao; Errui Ding; Jingdong Wang 001 (AAAI, 2025)

Recover and Match: Open-Vocabulary Multi-Label Recognition through Knowledge-Constrained Optimal Transport. - Hao Tan; Zichang Tan; Jun Li; Ajian Liu 001; Jun Wan 001; Zhen Lei 001 (CVPR, 2025)

TASAR: Transfer-based Attack on Skeletal Action Recognition. - Yunfeng Diao; Baiqi Wu; Ruixuan Zhang; Ajian Liu 001; Xiaoshuai Hao; Xingxing Wei; Meng Wang 001; He Wang 002 (ICLR, 2025)

Visual Prompt Flexible-Modal Face Anti-Spoofing. - Zitong Yu; Rizhao Cai; Yawen Cui; Ajian Liu 001; Changsheng Chen (IEEE Trans. Dependable Secur. Comput., 2025)

FA3-CLIP: Frequency-Aware Cues Fusion and Attack-Agnostic Prompt Learning for Unified Face Attack Detection. - Yongze Li; Ning Li; Ajian Liu 001; Hui Ma; Liying Yang; Xihong Chen; Zhiyao Liang; Yanyan Liang 001; Jun Wan 001; Zhen Lei 001 (IEEE Trans. Inf. Forensics Secur., 2025)

Vision Transformer With Relation Exploration for Pedestrian Attribute Recognition. - Hao Tan; Zichang Tan; Dunfang Weng; Ajian Liu 001; Jun Wan 001; Zhen Lei 001; Stan Z. Li (IEEE Trans. Multim., 2025)

Not All Frame Features Are Equal: Video-to-4D Generation via Decoupling Dynamic-Static Features. - Liying Yang; Chen Liu; Zhenwei Zhu; Ajian Liu 001; Hui Ma; Jian Nong; Yanyan Liang 001 (CoRR, 2025)

FA^{3}-CLIP: Frequency-Aware Cues Fusion and Attack-Agnostic Prompt Learning for Unified Face Attack Detection. - Yongze Li; Ning Li; Ajian Liu 001; Hui Ma; Liying Yang; Xihong Chen; Zhiyao Liang; Yanyan Liang 001; Jun Wan 001; Zhen Lei 001 (CoRR, 2025)

Domain Generalization for Face Anti-spoofing via Content-aware Composite Prompt Engineering. - Jiabao Guo; Ajian Liu 001; Yunfeng Diao; Jin Zhang; Hui Ma; Bo Zhao; Richang Hong; Meng Wang 001 (CoRR, 2025)

SUEDE:Shared Unified Experts for Physical-Digital Face Attack Detection Enhancement. - Zuying Xie; Changtao Miao; Ajian Liu 001; Jiabao Guo; Feng Li; Dan Guo; Yunfeng Diao (CoRR, 2025)

MLLM-Enhanced Face Forgery Detection: A Vision-Language Fusion Solution. - Siran Peng; Zipei Wang; Li Gao; Xiangyu Zhu 001; Tianshuo Zhang; Ajian Liu 001; Haoyuan Zhang; Zhen Lei 001 (CoRR, 2025)

Benchmarking Unified Face Attack Detection via Hierarchical Prompt Tuning. - Ajian Liu 001; Haocheng Yuan; Xiao Guo; Hui Ma; Wanyi Zhuang; Changtao Miao; Yan Hong 001; Chuanbiao Song; Jun Lan; Qi Chu 001; Tao Gong; Yanyan Liang 001; et al. (CoRR, 2025)

Your Classifier Can Do More: Towards Bridging the Gaps in Classification, Robustness, and Generation. - Kaichao Jiang; He Wang 002; Xiaoshuai Hao; Xiulong Yang; Ajian Liu 001; Qi Chu 001; Yunfeng Diao (CoRR, 2025)

DDL: A Dataset for Interpretable Deepfake Detection and Localization in Real-World Scenarios. - Changtao Miao; Yi Zhang; Weize Gao; Man Luo; Weiwei Feng; Zhiya Tan; Jianshu Li; Ajian Liu 001; Yunfeng Diao; Qi Chu 001; Tao Gong; Zhe Li; et al. (CoRR, 2025)

Reliable and Balanced Transfer Learning for Generalized Multimodal Face Anti-Spoofing. - Xun Lin; Ajian Liu 001; Zitong Yu; Rizhao Cai; Shuai Wang 049; Yi Yu 011; Jun Wan 001; Zhen Lei 001; Xiaochun Cao; Alex C. Kot (IEEE Trans. Pattern Anal. Mach. Intell., 2025)