Welcome to Zhen Xu's Homepage

About Me

I'm a third-year PhD student in Computer Science at Zhejiang University, advised by Prof. Xiaowei Zhou.
I obtained my bachelor's degree in Computer Science from Zhejiang University in 2022.

My current research focuses on:
3D/4D neural reconstruction and rendering, and volumetric videos .

More places where you can find me:
GitHub, Twitter (X), Google Scholar and [email protected]

News & Awards

Publications & Projects

[CVPR 2025] FreeTimeGS: Free Gaussian Primitives at Anytime Anywhere for Dynamic Scene Reconstruction

Yifan Wang*, Peishan Yang*, Zhen Xu*, Jiaming Sun, Zhanhua Zhang, Chen Yong, Hujun Bao, Sida Peng, Xiaowei Zhou

*Denotes equal contribution. Project page and more demos coming soon!

[CVPR 2025] StreetCrafter: Street View Synthesis with Controllable Video Diffusion Models

Yunzhi Yan*, Zhen Xu*, Haotong Lin, Haian Jin, Haoyu Guo, Yida Wang, Kun Zhan, Xianpeng Lang, Hujun Bao, Xiaowei Zhou Sida Peng,

*Denotes equal contribution. Street video model.

[CVPR 2025] EnvGS: Modeling View-Dependent Appearance with Environment Gaussian

Tao Xie*, Xi Chen*, Zhen Xu, Yudong Jin, Yiman Xie, Yujun Shen, Sida Peng, Hujun Bao, Xiaowei Zhou

*Denotes equal contribution. Our work on reconstructing reflective Gaussians.

[SIGGRAPH Asia 2024 (TOG)] Representing Long Volumetric Video with Temporal Gaussian Hierarchy

Zhen Xu*, Yinghao Xu*, Zhiyuan Yu*, Sida Peng, Jiaming Sun, Hujun Bao, Xiaowei Zhou

*Denotes equal contribution. Our latest project on long volumetric video!

Level of Gaussians: Real-Time View Synthesis for Large Scenes with Millions of Square Meters

Qing Shuai, Haoyu Guo, Zhen Xu, Haotong Lin, Sida Peng, Hujun Bao, Xiaowei Zhou

Expansive Gaussian reconstruction with Level-of-Detail.

[CVPR 2024] 4K4D: Real-Time 4D View Synthesis at 4K Resolution

Zhen Xu, Sida Peng, Haotong Lin, Guangzhao He, Jiaming Sun, Yujun Shen, Hujun Bao, Xiaowei Zhou

My recent project on real-time volumetric videos, check it out and leave a star 😎!

[CVPR 2024] Relightable and Animatable Neural Avatar from Sparse-View Video

Zhen Xu, Sida Peng, Chen Geng, Linzhan Mou, Zihan Yan, Jiaming Sun, Hujun Bao, Xiaowei Zhou

Another recent project on animatable and relightable digital humans.

[SIGGRAPH Asia 2023 (TC)] EasyVolcap: Accelerating Neural Volumetric Video Research

Zhen Xu, Tao Xie, Sida Peng, Haotong Lin, Qing Shuai, Zhiyuan Yu, Guangzhao He, Jiaming Sun, Hujun Bao, Xiaowei Zhou

Our neural volumetric video framework, check it out and leave a star 😎!

[SIGGRAPH Asia 2023 (Conf)] High-Fidelity and Real-Time Novel View Synthesis for Dynamic Scenes

Haotong Lin, Sida Peng, Zhen Xu, Tao Xie, Xingyi He, Hujun Bao, Xiaowei Zhou

[CVPR 2023] Learning Neural Volumetric Representations of Dynamic Humans in Minutes

Chen Geng*, Sida Peng*, Zhen Xu*, Hujun Bao, Xiaowei Zhou

*Denotes equal contribution.

[SIGGRAPH Asia 2022 (Conf)] Efficient Neural Radiance Fields for Interactive Free-viewpoint Video

Haotong Lin*, Sida Peng*, Zhen Xu, Yunzhi Yan, Qing Shuai, Hujun Bao, Xiaowei Zhou

*Denotes equal contribution.

[TPAMI 2024] Animatable Implicit Neural Representations for Creating Realistic Avatars from Videos

Xiaowei Zhou Sida Peng, Zhen Xu, Junting Dong, Qianqian Wang, Qing Shuai, Hujun Bao,