I am currently a postdoctoral researcher at the University of Sydney, under the supervision of Prof Tongliang Liu. Prior to that, I received my PhD from the Department of Computer Science at the University of Hong Kong in 2023, under the supervision of Prof Wenping Wang.
My research interest is in 3D spatial intelligence, focusing on how intelligent agents can reconstruct, generate, perceive, reason, and interact in the 3D world, supporting core applications such as autonomous driving, robotics, AR/VR, and smart healthcare.
🔥 News
- 2025.09: 🎉 One papers is accepted by TPAMI.
- 2025.09: 🎉 Two papers are accepted by NeurIPS.
- 2025.06: 🎉 One papers is accepted by MICCAI.
- 2025.05: 🎉 One papers is accepted by TVCG.
- 2025.05: 🎉 One papers is accepted by ICML.
- 2025.02: 🎉 Our Large Vision Diffusion Transformer is accepted by CVPR.
- 2024.07: 🎉 One paper is accepted by ECCV.
- 2024.02: 🎉 Four papers are accepted by CVPR.
- 2023.09: 🎉 Two papers are accepted by NeurIPS.
- 2023.07: 🎉 One paper is accepted by ACM MM.
- 2023.07: 🎉 Five papers are accepted by ICCV.
- 2023.02: 🎉 One paper is accepted by CVPR.
📝 Selected Publications

Lavin-dit: Large vision diffusion transformer
Zhaoqing Wang, Xiaobo Xia, Runnan Chen, Dongdong Yu, Changhu Wang, Mingming Gong, Tongliang Liu. CVPR, 2025 [Project Page] [Paper] [Code]


SURPRISE3D: A Dataset for Spatial Understanding and Reasoning in Complex 3D Scenes
Jiaxin Huang, Ziwen Li, Hanlve Zhang, Runnan Chen, Xiao He, Yandong Guo, Wenping Wang, Tongliang Liu, Mingming Gong. arXiv, 2025 [Paper]
OVGaussian: Generalizable 3D Gaussian Segmentation with Open Vocabularies
Runnan Chen, Xiangyu Sun, Zhaoqing Wang, Youquan Liu, Jiepeng Wang, Lingdong Kong, Jiankang Deng, Mingming Gong, Liang Pan, Wenping Wang, Tongliang Liu. arXiv, 2024 [Paper]

Panoslam: Panoptic 3d scene reconstruction via gaussian slam
Runnan Chen, Zhaoqing Wang, Jiepeng Wang, Yuexin Ma, Mingming Gong, Wenping Wang, Tongliang Liu. arXiv, 2024 [Paper]

Multispace alignments towards universal lidar segmentation
Youquan Liu, Lingdong Kong, Xiaoyang Wu, Runnan Chen, Xin Li, Liang Pan, Ziwei Liu, Yuexin Ma. CVPR, 2024 [Paper] [Code]

IS-FUSION: Instance-scene Collaborative Fusion for Multimodal 3D Object Detection
Junbo Yin, Jianbing Shen, Runnan Chen, Wei Li, Ruigang Yang, Pascal Frossard, Wenguan Wang. CVPR, 2024 [Paper] [Code]

CLIP2Scene: Towards Label-efficient 3D Scene Understanding by CLIP
Runnan Chen, Youquan Liu, Lingdong Kong, Xinge Zhu, Yuexin Ma, Yikang Li, Yuenan Hou, Yu Qiao, Wenping Wang. CVPR, 2023 [paper] [Code]

Bridging Language and Geometric Primitives for Zero-shot Point Cloud Segmentation
Runnan Chen, Xinge Zhu, Nenglun Chen, Wei Li, Yuexin Ma, Ruigang Yang, Wenping Wang. ACM MM, 2023 [paper] [Code]

Robo3d: Towards robust and reliable 3d perception against corruptions
Lingdong Kong, Youquan Liu, Xin Li, Runnan Chen, Wenwei Zhang, Jiawei Ren, Liang Pan, Kai Chen, Ziwei Liu. ICCV, 2023 [paper] [Code]

Uniseg: A unified multi-modal lidar segmentation network and the openpcseg codebase
Youquan Liu, Runnan Chen, Xin Li, Lingdong Kong, Yuchen Yang, Zhaoyang Xia, Yeqi Bai, Xinge Zhu, Yuexin Ma, Yikang Li, Yu Qiao, Yuenan Hou. ICCV, 2023 [paper] [Code]

Segment Any Point Cloud Sequences by Distilling Vision Foundation Models
Youquan Liu, Lingdong Kong, Jun Cen, Runnan Chen, Wenwei Zhang, Liang Pan, Kai Chen, Ziwei Liu. NeurIPS, 2023 [paper] [Code]

Towards label-free scene understanding by vision foundation models
Runnan Chen, Youquan Liu, Lingdong Kong, Nenglun Chen, Xinge Zhu, Yuexin Ma, Tongliang Liu, Wenping Wang. NeurIPS, 2023 [paper] [Code]

Structure-aware long short-term memory network for 3d cephalometric landmark detection
Runnan Chen, Yuexin Ma, Nenglun Chen, Lingjie Liu, Zhiming Cui, Yanhong Lin, Wenping Wang. TMI, 2022 [paper] [Code]

Pr-net: Preference reasoning for personalized video highlight detection
Runnan Chen, Penghao Zhou, Wenzhe Wang, Nenglun Chen, Pai Peng, Xing Sun, Wenping Wang. ICCV, 2021 [paper]

Unsupervised learning of intrinsic structural representation points
Nenglun Chen, Lingjie Liu, Zhiming Cui, Runnan Chen, Duygu Ceylan, Changhe Tu, Wenping Wang. CVPR, 2020 [paper] [Code]

Cephalometric landmark detection by attentive feature pyramid fusion and regression-voting
Runnan Chen, Yuexin Ma, Nenglun Chen, Daniel Lee, Wenping Wang. MICCAI, 2019 [paper] [Code]
🔖 Academic Services
- Journal reviewers: TPAMI, IJCV, TMI, TIP.
- Regular conference reviewers/program committee: NeurIPS, SIGGRAPH, CVPR, ICML, ICLR, ICCV, ECCV, AAAI, IJCAI, ACM MM, MICCAI.
🎖 Honors and Awards
- 2017-2021 Postgraduate Scholarship of HKU.
- 2013 National Scholarship.
- 2012 Liaoning Government Scholarship.