Tiancheng (Kevin) Sun
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Tiancheng (Kevin) Sun

孙天成

I am a senior research scientist at Google, working on Google Beam. I received my Ph.D. in Computer Science (Google Ph.D. Fellow) at University of California, San Diego under the advisory of Prof. Ravi Ramamoorthi. I did my undergraduate in Yao Class, Tsinghua University.

I am generally interested in computer vision and graphics, with a particular focus on novel view synthesis and 3D reconstruction. Recently, I am more focused on 3D continuous learning in time.

Recent News

Publications

Selfi: Self Improving Reconstruction Engine via 3D Geometric Feature Alignment

Selfi: Self Improving Reconstruction Engine via 3D Geometric Feature Alignment

Youming Deng, Songyou Peng, Junyi Zhang, Kathryn Heal, Tiancheng Sun, John Flynn, Steve Marschner, Lucy Chai

Arxiv 2025

[pdf][project]
Learning Efficient Fuse-and-Refine for Feed-Forward 3D Gaussian Splatting

Learning Efficient Fuse-and-Refine for Feed-Forward 3D Gaussian Splatting

Yiming Wang, Lucy Chai, Xuan Luo, Michael Niemeyer, Manuel Lagunas, Stephen Lombardi, Siyu Tang, Tiancheng Sun

Neurips 2025

[pdf][project]
Quark: Real-time, High-resolution, and General Neural View Synthesis

Quark: Real-time, High-resolution, and General Neural View Synthesis

John Flynn*, Michael Broxton*, Lukas Murmann*, Lucy Chai, Matthew DuVall, Clément Godard, Kathryn Heal, Srinivas Kaza, Stephen Lombardi, Xuan Luo, Supreeth Achar, Kira Prabhu, Tiancheng Sun, Lynn Tsai, Ryan Overbeck

SIGGRAPH Asia 2024

[pdf][project]🏆 Best Paper Award
Single Image Portrait Relighting

Single Image Portrait Relighting

Tiancheng Sun, Jonathan T. Barron, Yun-Ta Tsai, Zexiang Xu, Xueming Yu, Graham Fyffe, Christoph Rhemann, Jay Busch, Paul Debevec, Ravi Ramamoorthi

SIGGRAPH 2019

[pdf][project]

Awards & Honors

  • 2024 — Best Paper Award, SIGGRAPH Asia
  • 2019 — Google PhD Fellowship

Professional Services

  • Technical Program Committee, SIGGRAPH 2026
  • Reviewer, SIGGRAPH/SIGGRAPH Asia
  • Reviewer, CVPR/ICCV/ECCV