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Tianrun Chen

Ph.D in Computer Science
Zhejiang University
tianrun.chen@zju.edu.cn


About Me

I received my bachelor’s degree in College of Information Science and Electronic Engineering, Zhejiang University and is pursuing the Ph.D degree with the College of Computer Science and Technology, Zhejiang University. I am co-supervised by Prof. Yunhe Pan (Fellow and the former vice president of the Chinese Academy of Engineering, CAE, the former president of Zhejiang University) and Prof. Lingyun Sun. I am the founder and the CEO of the startup KOKONI Tech (www.kokoni3d.com). My research interest includes computer vision and its enabling applications.

I am always open to potential collaborations, feel free to drop an email if you are interested in.

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Selected Publications

3D Vision & Graphics

  1. CVPR
    CADCrafter: Generating Computer-Aided Design Models from Unconstrained Images
    Cheng Chen, Jiacheng Wei, Tianrun Chen# (# Corresponding Author), Chi Zhang, Xiaofeng Yang, Shangzhan Zhang, Bingchen Yang, Chuan-Sheng Foo, Guosheng Lin, Qixing Huang, Fayao Liu#
    IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) , 2025.
    PDF
  2. CVPR
    Rapid 3D Model Generation with Intuitive 3D Input
    Tianrun Chen, Chaotao Ding, Shangzhan Zhang, Chunan Yu, Ying Zang, Zejian Li, Sida Peng, Lingyun Sun
    IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) (Highlight Paper) , 2024.
    PDF
  3. CVPR
    Reality3DSketch: rapid 3D modeling of objects from single freehand sketches
    Tianrun Chen, Chaotao Ding, Lanyun Zhu, Ying Zang, Yiyi Liao, Zejian Li, Lingyun Sun
    IEEE Transactions on MultiMedia (TMM), 2024.
    PDF
  4. TVCG
    From Air to Wear: Personalized 3D Digital Fashion with AR/VR Immersive 3D Sketching
    Ying Zang, Yuanqi Hu, Xinyu Chen, Yuxia Xu, Suhui Wang, Chunan Yu, Lanyun Zhu, Deyi Ji, Xin Xu, Tianrun Chen # (# Corresponding Author)
    IEEE Transactions on Visualization and Computer Graphics, 2024.
    PDF
  5. SIGGRAPH
    MaPa: Text-driven Photorealistic Material Painting for 3D Shapes
    Shangzhan Zhang, Sida Peng, Tao Xu, Yuanbo Yang, Tianrun Chen, Nan Xue, Yujun Shen, Hujun Bao, Ruizhen Hu, Xiaowei Zhou
    ACM SIGGRAPH, 2024.
    PDF Project Page
  6. CVPR
    Painting 3D Nature in 2D: View Synthesis of Natural Scenes from a Single Semantic Mask
    Shangzhan Zhang, Sida Peng, Tianrun Chen, Linzhan Mou, Haotong Lin, Kaicheng Yu, Yiyi Liao, Xiaowei Zhou
    IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2023.
    PDF Project Page
  7. TPAMI
    PanopticNeRF-360: Panoramic 3D-to-2D Label Transfer in Urban Scenes
    Xiao Fu, Shangzhan Zhang, Tianrun Chen, Yichong Lu, Lanyun Zhu, Xiaowei Zhou, Andreas Geiger, Yiyi Liao
    IEEE Transactions on Pattern Analysis and Machine Intelligence, 2025
    Project Page
  8. 3DV
    Panoptic NeRF: 3D-to-2D Label Transfer for Panoptic Urban Scene Segmentation
    Xiao Fu, Shangzhan Zhang, Tianrun Chen, Yichong Lu, Lanyun Zhu, Xiaowei Zhou, Andreas Geiger, Yiyi Liao
    International Conference on 3D Vision (3DV), 2022.
    PDF Project Page Code
  9. ICLR
    Reasoning3D--Grounding and Reasoning in 3D: Fine-Grained Zero-Shot Open-Vocabulary 3D Reasoning Part Segmentation via Large Vision-Language Models
    Tianrun Chen, Chunan Yu, Jing Li, Jianqi Zhang, Lanyun Zhu, Deyi Ji, Yong Zhang, Ying Zang, Zejian Li, Lingyun Sun
    ICLR Workshop 2025.
    PDF Project Page
  10. Chinagraph
    Dyn-E: Local Appearance Editing of Dynamic Neural Radiance Fields
    Shangzhan Zhang, Sida Peng, Yinji ShenTu, Qing Shuai, Tianrun Chen, Kaicheng Yu, Hujun Bao, Xiaowei Zhou
    Computers & Graphics 2025 & Chinagraph 2024 (Best paper award)
    PDF Project Page

    11. Vision Semantic Understanding & Multi-Modal Foundation Model

  11. ICML
    CPCF: A Cross-Prompt Contrastive Framework for Referring Multimodal Large Language Models
    Lanyun Zhu, Deyi Ji, Tianrun Chen# (# Corresponding Author), Haiyang Wu, De Wen Soh, Jun Liu
    International Conference on Machine Learning (ICML), 2025.
  12. ICCV
    SAM-Adaptor: Adapting SAM in Underperformed Scenes
    Tianrun Chen, Lanyun Zhu, Chaotao Ding, Runlong Cao, Shangzhan Zhang, Yan Wang, Papa Mao, Ying Zang
    IEEE/CVF International Conference on Computer Vision Workshop (ICCV), 2023.
    Project Page Github Code (Github 1k+ Stars)
  13. CVPR
    POPEN: Preference-Based Optimization and Ensemble for LVLM-Based Reasoning Segmentation
    Lanyun Zhu, Tianrun Chen, Qianxiong Xu, Xuanyi Liu, Deyi Ji, Haiyang Wu, De Wen Soh, Jun Liu
    IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2025.
    PDF
  14. CVPR
    Addressing Background Context Bias in Few-Shot Segmentation through Iterative Modulation
    Lanyun Zhu, Tianrun Chen, Jianxiong Yin, Simon See, Jun Liu
    IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2024.
    PDF
  15. CVPR
    LLaFS: When Large-Language Models Meet Few-Shot Segmentation
    Lanyun Zhu, Tianrun Chen, Deyi Ji, Jieping Ye, Jun Liu
    IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2024.
    PDF
  16. CVPR
    Continual Semantic Segmentation with Automatic Memory Sample Selection
    Lanyun Zhu#, Tianrun Chen# (#=Equal Contribution), Jianxiong Yin, Simon See, Jun Liu
    IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2023.
    PDF
  17. ICCV
    Learning Gabor Texture Features for Fine-Grained Recognition
    Lanyun Zhu, Tianrun Chen, Jianxiong Yin, Simon See, Jun Liu
    IEEE/CVF International Conference on Computer Vision (ICCV), 2023.
    PDF
  18. Preprint
    IBD: Alleviating Hallucinations in Large Vision-Language Models via Image-Biased Decoding
    Lanyun Zhu, Deyi Ji, Tianrun Chen, Peng Xu, Jieping Ye, Jun Liu
    CVPR Workshop 2025
    PDF

    19. AI4Science Applications

  19. Science
    Integrated carbon and nitrogen management for cost-effective environmental policies in China
    Xin Xu, Xiuming Zhang, Yiyang Zou, Tianrun Chen, Jingfang Zhan, Luxi Cheng, Wilfried Winiwarter, Shaohui Zhang, Peter M Vitousek, Wim de Vries, Baojing Gu
    Science, 2025.
  20. IEEE BHI
    xLSTM-UNet can be an Effective Backbone for 2D & 3D Biomedical Image Segmentation Better than its Mamba Counterparts
    Tianrun Chen, Chaotao Ding, Lanyun Zhu, Tao Xu, Yan Wang, Deyi Ji, Zejian Li, Ying Zang
    IEEE-EMBS International Conference on Biomedical and Health Informatics, 2024.
  21. Nature Photonics
    Super-resolution imaging of non-fluorescent molecules by photothermal relaxation localization microscopy
    Pengcheng Fu, Wanlin Cao, Tianrun Chen, Xiangjie Huang, Taoran Le, Shiyao Zhu, Da-Wei Wang, Hyeon Jeong Lee & Delong Zhang
    Nature Photonics, 2023.
  22. Laser & Photonics Rev.
    Single-Shot Recognition of 3D Phase Images With Deep Learning
    Weiru Fan#, Tianrun Chen# (#=Equal Contribution), Xingqi Xu, Ziyang Chen, Huizhu Hu, Delong Zhang, Da-Wei Wang, Jixiong Pu, and Shi-Yao Zhu
    Laser and Photonics Reviews, 2022
    PDF
  23. ACS Photonics
    Second Harmonic Imaging Enhanced by Deep Learning Decipher
    Weiru Fan#, Tianrun Chen# (#=Equal Contribution),Eddie Gil, Shiyao Zhu, Vladislav Yakovlev, Da-Wei Wang, and Delong Zhang
    ACS Photonics, 2021

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