I am currently a fourth year joint Ph.D. student in the Image and Visual Representation Lab (IVRL), the School of Computer and Communication Sciences at École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland, luckily supervised by Prof. Sabine Süsstrunk and working with Dr. Tong Zhang.

Before that, I received my bachelor degree from the Department of Computer Science and Technology, Tsinghua University, Beijing, China. My bachelor’s thesis was supervised by Prof. Hang Su and Prof. Jun Zhu. And I feel lucky to further collaborate with Prof. Hang Su, Prof. Jianmin Li and Prof. Jun Zhu from Tsinghua University. I am also enrolled in a Ph.D. program at the University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China, luckily supervised by Prof. Shiming Ge and Prof. Can Ma.

Currently, my research focuses on Multimodal Media Forensics and AI Safety, including investigating the mechanism of generative models (such as Large Language Models and Diffusion Models) and how to detect generated or manipulated content. If you are also interested in similar topics or seeking any form of research collaboration, please feel free to reach out to me by email. I always enjoy working with excellent researchers!

I am actively looking for full-time positions. Do not hesitate to contact me if you are interested.

🔥 News

  • 2024.10:  📄 Present our work in ECCV 2024, Milano, Italy. Welcome to join us during the poster session!
  • 2024.07:  🙌 Volunteer in ICCP 2024, Lausanne, Switzerland. Welcome to join our conference!
  • 2024.06:  🎉 One paper Accepted by ECCV 2024! Thanks for all my co-authors!
  • 2024.02:  🔈 Supervise two BS/MS Semester Projects on Large Language Models/Diffusion Models Safety during spring semester at EPFL. Feel free to send me an email if you are interested in these topics and working with me.
  • 2024.01:  🙋 Invited talk on the TechDay of International School of Geneve on Deepfake. Happy to share ideas with young students!
  • 2023.09:  😃 I am lucky to join the IVRL group at EPFL for a joint Ph.D. program under the supervision of Prof.Sabine Süsstrunk.

📝 Publications

ECCV 2024
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Learning Natural Consistency Representation for Face Forgery Video Detection

Daichi Zhang, Zihao Xiao, Shikun Li, Fanzhao Lin, Jianmin Li, Shiming Ge.

European Conference on Computer Vision (ECCV) 2024.

  • Learning the natural consistency representation of real face videos with two designed self-supervised tasks to detect fake ones.
arXiv 2023
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Latent Spatiotemporal Adaptation for Generalized Face Forgery Video Detection

Daichi Zhang, Zihao Xiao, Jianmin Li, Shiming Ge.

arXiv preprint arXiv:2309.04795.

  • Improve the detector’s generalization by adapting the spatiotemporal clues from labeled source domain to unlabeled target domain.
ACM MM 2022
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Deepfake Video Detection with Spatiotemporal Dropout Transformer

Daichi Zhang, Fanzhao Lin, Yingying Hua, Pengju Wang, Dan Zeng, Shiming Ge.

ACM International Conference on Multimedia (ACM MM) 2022: 5833-5841. \({\color{red}{(Oral)}}\)

  • A Transformer-based detector by mining the local patch-level spatiotemporal inconsistency.
IJCAI 2021
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Detecting Deepfake Videos with Temporal Dropout 3DCNN

Daichi Zhang, Chenyu Li, Fanzhao Lin, Dan Zeng, Shiming Ge.

International Joint Conferences on Artificial Intelligence (IJCAI) 2021: 1288-1294.

  • A 3DCNN-based detector by exploring the multi-scale spatiotemporal coherence with temporal augmentation.

📖 Educations

🔨 Projects

Github
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Awesome Deepfake Detection [Github]

  • A collection list of Deepfakes Detection related datasets, tools, papers, and code to facilitate the development of related community.

Besides, I also serve as a reviewer for top-tier journals (including TIP, TCSVT) and conferences (including CVPR, ECCV, ICLR, ACM MM).

🎖 Awards

  • 2021.06, Merit Student, University of Chinese Academy of Sciences.
  • 2019.10, National Encouragement Scholarship, Philobiblion Scholarship, Tsinghua University.
  • 2019.06, Merit Student, Tsinghua University.

💻 Internships

  • 2019.10 - 2020.06, Algorithm Engineer, Ant Group, Beijing, China.
  • 2019.06 - 2019.09, Algorithm Engineer, Tecent, Shenzhen, China.