Weichen Fan

Profile

About Me

I am a first-year PhD student at MMLab@NTU, Nanyang Technological University, under the supervision of Prof. Ziwei Liu. I earned my Bachelor's degree from the University of Electronic Science and Technology of China (UESTC) and my Master's degree from the National University of Singapore (NUS). My research centers on video generation, diffusion models, and robotics.

Email: weichen002 [at] e.ntu.edu.sg

GitHub | Google Scholar

Experience

CFG-Zero teaser
Nanyang Technological University
Research Manager | Singapore
Time: May 2024 - Nov 2024
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HyperGAI
Research Scientist | Singapore
Time: Oct 2023 - May 2024
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SenseTime
Computer Vision Researcher | ShangHai
Time: Jun 2022 - Oct 2023
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SenseTime
Research Intern | Singapore
Time: May 2021 - Jun 2022

Publications

UAE teaser
The Prism Hypothesis: Harmonizing Semantic and Pixel Representations via Unified Autoencoding
arXiv, 2025
Weichen Fan, Haiwen Diao, Quan Wang, Dahua Lin, Ziwei Liu
arXiv Code
CFG-Zero teaser
CFG-Zero*: Classifier-Free Guidance with Zero Prediction
arXiv, 2025
Weichen Fan, Amber Yijia Zheng, Raymond A. Yeh, Ziwei Liu
Project Page arXiv Code
Vchitect teaser
Vchitect-2.0: Parallel Transformer for Scaling Up Video Diffusion Models
arXiv, 2025
Weichen Fan*, Chenyang Si*, Junhao Song, Zhenyu Yang, Yinan He, Long Zhuo, Ziqi Huang, Ziyue Dong, Jingwen He, Dongwei Pan, Yi Wang, Yuming Jiang, Yaohui Wang, Peng Gao, Xinyuan Chen, Hengjie Li, Dahua Lin, Yu Qiao, Ziwei Liu
Project Page arXiv Dataset Code
RepVideo teaser
RepVideo: Rethinking Cross-Layer Representation for Video Generation
arXiv, 2025
Chenyang Si*, Weichen Fan*, Zhengyao Lv, Ziqi Huang, Yu Qiao, and Ziwei Liu
Project Page arXiv Code
LCL teaser
Link-Context Learning For Multimodal LLMs
CVPR, 2024
Yan Tai*, Weichen Fan*, Zhao Zhang, Ziwei Liu
Paper Link Code
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Hierarchy Flow For High-Fidelity Image-to-Image Translation
arXiv, 2022
Weichen Fan*, Jinghuan Chen*, Ziwei Liu
arXiv Code
CFG-Zero teaser
SAVAnet: Surgical Action-Driven Visual Attention Network for Autonomous Endoscope Control
IEEE Transactions on Automation Science and Engineering, 2022
Huxin Gao* Weichen Fan*, Liang Qiu, Xiaoxiao Yang, Zhen Li, Xiuli Zuo, Yanqing Li, Max Q.-H. Meng, Hongliang Ren
Paper Link
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