Kaiwen Tian

I am a fourth-year undergraduate in Automation at Tsinghua University. Currently, I work with Prof. Qiang Xu at the CURE Lab, The Chinese University of Hong Kong, and intern at PhAI Labs.

My research focuses on LLM agents for scientific research. Previously, I worked on sparse-view 3D/4D human reconstruction with generative models.

Email GitHub REDnote CV

News

2026.10Sparse-View 4D Gaussian Splatting via Spatiotemporal Priors and Generative Assistance accepted to SIGGRAPH Asia 2026 Workshops.
2026.09Won First Prize in the Sparse-View Track of the 2nd Volumetric Video Challenge.
2026.09Joined Prof. Qiang Xu at CUHK to work on scientific agents.

Publications

Sparse-View 4D Gaussian Splatting via Spatiotemporal Priors and Generative Assistance — teaser figure

Sparse-View 4D Gaussian Splatting via Spatiotemporal Priors and Generative Assistance

Shengqi Wang, Zhengxian Yang, Kaiwen Tian, Yang Liu, Bowen Liu, Hua Du, Taicheng Huang, Jiamin Wu, Tao Yu^†

^†Corresponding author

Volumetric Video Challenge Workshop, SIGGRAPH Asia 2026

1st Place · Sparse-View Track

arXiv·Challenge

Education

Tsinghua University

B.Eng. in Automation

Sep 2023 — Jun 2027 (expected)

GPA 3.9/4.0 · Rank 6/173 (top 4%)

Experience

Research Intern

Sep 2026 — now

LLM agents for science

JD Retail · Intern

Jul 2026 — Sep 2026

Sparse-view 3D/4D reconstruction for XR

Misc

Outside research, I travel — the photos that survive the edit occasionally land in Blog.

Otherwise: TV shows and films, music that's always playing somewhere, and pretty much any sport with a scoreboard. New things? Always yes.

Visitors

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— I guess we’ll never know.