Xianfeng Wu

Xianfeng Wu, 吴显峰

Research Assistant @ HKPolyU

Currently working at Department of Computing, The Hong Kong Polytechnic University. Passionate about Multi-modal Foundation Models (Generative Models), 3D Vision and AI4Science. Currently, I am working closely with Tianlong Chen.

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Latest News

Dec. 2025

4DLangVGGT Released

Released 4DLangVGGT, first feed-forward 4d language field model.

Mar. 2025

LightGen Released

Released Lightgen, an efficient text2img generation pretrain pipeline based on MAR. Featured in 机器之心, 量子位 and HKUST AIS.

July 2024

Joined AMC

Joined Division of Arts and Machine Creativity, HKUST as a Research Assistant under supervised by Assistant Prof. Harry Yang.

Selected Publications

4DLangVGGT: 4D Language Visual Geometry Grounded Transformer
Xianfeng Wu+, Yajing Bai+, Minghan Li, Xianzu Wu, Xueqi Zhao, Zhongyuan Lai, Wenyu Liu, Xinggang Wang* (+Equal Contribution)
Under Review
PDF Code Project
LightGen: An Efficient Text2Img Generation Pretrain Pipeline based on MAR
Xianfeng Wu+, Yajing Bai+, Haoze Zheng+, Harold Haodong Chen+, Yexin Liu+, Zihao Wang, Xuran Ma, Wenjie Shu, Xianzu Wu, Harry Yang*, Ser-Nam Lim* (+Equal Contribution)
Arxiv, 2025
PDF Code
Model Reveals What to Cache: Profiling-Based Feature Reuse for Video Diffusion Models
Xuran Ma, Yexin Liu, Yaofu Liu, Xianfeng Wu, Mingzhe Zheng, Zihao Wang, Ser-Nam Lim, Harry Yang
ICCV25'
Code
Unveiling the Ignorance of MLLMs: Seeing Clearly, Answering Incorrectly
Yexin Liu+, Zhengyang Lian+, Yueze Wang+, Xianfeng Wu+, Feilong Tang, Muyang He, Jian Li, Zheng Liu, Harry Yang, Ser-Nam Lim, Bo Zhao* (+Equal Contribution)
CVPR25'
Code
FSC: Few-point Shape Completion
Xianzu Wu+, Xianfeng Wu+, Tianyu Luan, Yajing Bai, Zhongyuan Lai*, Junsong Yuan (+Equal Contribution)
CVPR24'
Code

*Full publication list available on Google Scholar.

Experience

Sep. 2025 - Present

Research Assistant

Department of Computing, The Hong Kong Polytechnic University, Hung Hom, HK

Advisor: Prof. Lei Zhang.

June 2025 - Sep. 2025

Research Intern

School of EIC, Huazhong University of Science and Technology, Hubei, China

Advisor: Prof. Xinggang Wang & Prof. Wenyu Liu.

July 2024 - Present

Research Assistant

Division of Arts and Machine Creativity, HKUST, NT, Hong Kong

Advisor: Assistant Prof. Harry Yang.

Jan. 2023 - June 2024

Remote Research Intern

Department of Computer Science and Engineering, University at Buffalo, NY, US

Advisors: Prof. Junsong Yuan & Dr. Tianyu Luan.

June 2023 - Oct. 2023

Summer Research Intern

School of Engineering, Westlake University, Zhejiang, China

Advisor: Assistant Prof. Tailin Wu.