About

I am a PhD student at the School of Computer Science, Shanghai Jiao Tong University (SJTU), supervised by Prof. Fan Wu and Asst. Prof. Chaoyue Niu. Previously, I received my B. Eng. degree in Computer Science and Engineering from SJTU in 2025.

Research interests

  • 3D avatar reconstruction and generation
  • 3D scene reconstruction, understanding, and human interaction
  • Large language models and mobile agents

Community

Publications5

  1. EuroSys 2027

    Dynamic Flow, Static Graph: KV Cache Reuse for Efficient LLM Serving on Mobile NPUs

    Zhengxiang Huang, Shengheng Chen, Chaoyue Niu, Yujie Sun, Zhaode Wang, Zeyu Zhao, Chengfei Lv, Fan Wu, Guihai Chen

  2. ECHO method overview
    SelectedACM MM 2026

    ECHO: Dyadic 3D Facial Motion Generation with Asymmetric Deterministic Articulation and Stochastic Reaction

    Zhuoqiang Cai, Yujie Sun, Chaoyue Niu, Hongyun Yu, Zhiwen Chen, Chengfei Lv, Fan Wu

  3. FHAvatar method overview and applications
    SelectedCVPR 2026

    FHAvatar: Fast and High-Fidelity Reconstruction of Face-and-Hair Composable 3D Head Avatar from Few Casual Captures

    Yujie Sun, Zhuoqiang Cai, Chaoyue Niu, Jianchuan Chen, Zhiwen Chen, Chengfei Lv, Fan Wu

    We present FHAvatar, a novel framework for reconstructing 3D Gaussian avatars with composable face and hair components from an arbitrary number of views.

  4. TDSC 2025

    CodeMark: Contextual and Natural Watermarking for Tracing Code Snippet Provenance

    Wei Li, Borui Yang, Yujie Sun, Suyu Chen, Yuting Chen, Liyao Xiang

  5. End-to-end mobile 3D video pipeline overview
    MobiCom 2024

    An End-to-End, Low-Cost, and High-Fidelity 3D Video Pipeline for Mobile Devices

    Tiancheng Fang, Chaoyue Niu, Yujie Sun, Chengfei Lv, Xiaotang Jiang, Ben Xue, Fan Wu, Guihai Chen

Open-source projects

  1. SJMCL project banner

    SJMC Launcher

    A cross-platform Minecraft launcher.

    Team Leader2024 – Present
  2. SJTU Aixinwu

    A campus marketplace for exchanging idle items.

    Maintainer2023 – Present

Awards

  • 2025Winner (1st Place), CVPR Photorealistic 3D Head Avatars Workshop
  • 2025 — Shanghai Outstanding Graduates (Top 1%)
  • 2024 — Dong Scholarship (Top 5%)
  • 2024 — Silver Award (Shanghai Municipal Level), China International College Students' Innovation Competition

Experience

  1. Taobao and Tmall Group, Alibaba Group

    Research Intern2024.07 – 2025.09
    Hangzhou, China
  2. Youzan Technology

    Backend Software Engineer Intern2023.07 – 2023.09
    Hangzhou, China