I am a Ph.D. student in the FSM Lab at City University of Hong Kong, advised by Prof. Jianping Wang.

My research focuses on scene understanding, 4D reconstruction, and autonomous driving. I received my master’s degree with Distinction from Beihang University in June 2022. Before starting my Ph.D., I worked on LiDAR perception at Momenta.

Education & Experience

• 2024 – Present, Ph.D. in Computer Science, City University of Hong Kong.
• 2022 – 2023, Senior Perception Algorithm Engineer, Momenta (LiDAR Perception).
• 2019 – 2022, M.Sc. in Computer Technology, Beihang University (Distinction).

News

• 2026.10: Our paper One World, Dual Timeline was accepted to NeurIPS 2026.
• 2025.05: Our paper VI-Planning was accepted to ACM MobiCom 2025 and later received the Best Poster Runner-up award.
• 2024.05: Our team, FSM Speed, won the 17th F1TENTH Grand Prix in Hong Kong. Project

Publications

• One World, Dual Timeline: Decoupled Spatio-Temporal Gaussian Scene Graph for 4D Cooperative Driving Reconstruction NeurIPS 2026
  Yulong Chen^*, Xiaoyun Dong^*, Haoyu Zhang^*, Zongxian Yang, Lewei Xie, Xinke Li, Yifan Zhang, Kai Wang, Jianping Wang.
  Paper BibTeX

• Beyond Perfect Priors: Adaptive Gaussian Graph for 4D Driving Reconstruction in the Wild Under Review 2026
  Xiaoyun Dong, Qian Xu, Yun Wang, Yang Lu, Jen-Ming Wu, Jianping Wang.
  Paper BibTeX

• OmniSCS: Omni Safety-Critical Scenario Synthesis for Autonomous Driving via a Fully Editable Driving World Under Review 2026
  Xiaoyun Dong, Qian Xu, Yang Lu, Yang Lou, Yung-Hui Li, Jianping Wang.
  Paper Demo BibTeX

• VI-Planning: Infrastructure-Assisted Real-Time Planning Optimization for Autonomous Driving MobiCom 2025
  Yang Lu, Jie Wang, Xiaoyun Dong, Ziyao Huang, Bingyi Liu, Jen-Ming Wu, Jianping Wang.
  Paper Poster Demo BibTeX

• PV-EncoNet: Fast Object Detection Based on Colored Point Cloud T-ITS 2022
  Zhenchao Ouyang, Xiaoyun Dong, Jiahe Cui, Jianwei Niu, Mohsen Guizani.
  IEEE Transactions on Intelligent Transportation Systems (T-ITS), 23(8): 12439–12450, 2022.
  Paper Code BibTeX

• Polarmask-Tracker: Lightweight Multi-Object Tracking and Segmentation Model for Edge Device ISPA 2021
  Xiaoyun Dong, Zhenchao Ouyang, Zeling Guo, Jianwei Niu.
  Paper BibTeX

• Fast Segmentation-Based Object Tracking Model for Autonomous Vehicles ICA3PP 2020
  Xiaoyun Dong, Jianwei Niu, Jiahe Cui, Zongkai Fu, Zhenchao Ouyang.
  Paper BibTeX

^* Equal contribution.

Honors

• MobiCom Best Poster Runner-up, 2025.
• Champion, 17th F1TENTH Grand Prix, Hong Kong, 2024.
• Outstanding Graduation Thesis, Beihang University (Top 3%).