Weichen Fan

About Me

I am a PhD student at MMLab@NTU, Nanyang Technological University, supervised by Prof. Ziwei Liu. Prior to this, I received 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 focuses on video generation, diffusion models, and robotics.

Email: weichen.fan [at] u.nus.edu

GitHub | Google Scholar

Experience

Nanyang Technological University

Research Manager | Singapore

Time: May 2024 - Nov 2024

HyperGAI

Research Scientist | Singapore

Time: Oct 2023 - May 2024

SenseTime

Computer Vision Researcher | ShangHai

Time: Jun 2022 - Oct 2023

SenseTime

Research Intern | Singapore

Time: May 2021 - Jun 2022

Publications

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-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: 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

Link-Context Learning For Multimodal LLMs

CVPR, 2024

Yan Tai*, Weichen Fan*, Zhao Zhang, Ziwei Liu

Paper Link Code

Hierarchy Flow For High-Fidelity Image-to-Image Translation

arXiv, 2022

Weichen Fan*, Jinghuan Chen*, Ziwei Liu

arXiv Code

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