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Jiaxin Guo

Postdoctoral Researcher
CUHK | T Stone Robotics Institute
jiaxinguo@link.cuhk.edu.hk


About Me

Hi there. I am a postdoctoral researcher in CUHK T Stone Robotics Institute (CURI) from the Chinese University of Hong Kong (CUHK), supervised by Prof. Yun-hui Liu. I also have tight collaboration with Prof. Qi Dou.

I obtained my Ph.D. (Aug. 2021 - Sep. 2025) in Mechanical and Automation Engineering from CUHK (supervisor: Prof. Yun-hui Liu) and obtained my B.Eng (Sep. 2017 - Jun. 2021) in Control Science and Engineering and Mechanical and Electronic Engineering from Zhejiang University (ZJU) with an honor degree at Chu Kochen College. I was advised by Prof. Yue Wang, Prof. Yiyi Liao and Prof. Rong Xiong for my undergraduate research.

Research Interests

My research focuses on embodied intelligence, 3D/4D scene understanding and reconstruction, novel view synthesis, generative modeling, and world models, with particular interest in challenging environments such as minimally invasive surgery and surgical autonomy. More broadly, I am interested in building intelligent systems that can perceive, reconstruct, understand, and interact with complex dynamic scenes. I am also open to collaborations, please feel free to reach out if you are interested in my research.

News

Publications

  1. ICRA
    BlurPoint: Efficient Motion Blur Aware\Student-Teacher Local Feature Learning
    Wenting Wang, Zhenjun Zhao, Jiaxin Guo, Yun-Hui Liu, Charlie C.L. Wang, and Yeung Yam.
    International Conference on Robotics and Automation (ICRA), 2026.

  2. Arxiv
    DINO-Tok: Adapting DINO for Visual Tokenizers
    Mingkai Jia, Mingxiao Li, Zhijian Shu, Anlin Zheng, Liaoyuan Fan, Jiaxin Guo, Tianxing Shi, Dongyue Lu, Zeming Li, Xiaoyang Guo, Xiaojuan Qi, Xiaoxiao Long, Qian Zhang, Ping Tan, Wei Yin.
    Arxiv paper, 2026.
    PDF Code

  3. ICLR
    DispViT: Direct Stereo Disparity Regression with a Single-Stream Vision Transformer
    Tongfan Guan, Jiaxin Guo, Tianyu Huang, Jinhu Dong, Chen Wang, and Yun-Hui Liu.
    International Conference on Learning Representations (ICLR), 2026.
    PDF Code

  4. Arxiv
    SaLon3R: Structure-aware Long-term Generalizable 3D Reconstruction from Unposed Images
    Jiaxin Guo, Tongfan Guan, Wenzhen Dong, Wenzhao Zheng, Wenting Wang, Yue Wang, Yeung Yam, and Yun-Hui Liu.
    Arxiv paper, 2025.
    PDF Code Project Page

  5. BIBM
    EndoWave: Rational-Wavelet 4D Gaussian Splatting for Endoscopic Reconstruction
    Taoyu Wu, Yiyi Miao, Jiaxin Guo, Ziyan Chen, Sihang Zhao, Zhuoxiao Li, Zhe Tang, Baoru Huang, Limin Yu.
    International Conference on Bioinformatics and Biomedicine (BIBM), 2025.
    PDF

  6. JBHI
    A 3D Edge-Attention Denoising Diffusion Network for Prostate Segmentation in Puncture Biopsy
    Haomin Kuang, Jiaxin Guo, Kai Xu, Yun-Hui Liu.
    IEEE Journal of Biomedical and Health Informatics (JBHI), 2025.
    PDF

  7. ICCV
    BridgeDepth: Bridging Monocular and Stereo Reasoning with Latent Alignment
    Tongfan Guan, Jiaxin Guo, Chen Wang, and Yun-Hui Liu.
    International Conference on Computer Vision (ICCV), 2025. (Highlight)
    PDF Code

  8. MICCAI
    Endo3R: Unified Online Reconstruction from Dynamic Monocular Endoscopic Video
    Jiaxin Guo, Wenzhen Dong, Tianyu Huang, Hao Ding, Ziyi Wang, Haomin Kuang, Qi Dou, and Yun-Hui Liu.
    Medical Image Computing and Computer Assisted Intervention (MICCAI), 2025. (Oral)
    PDF Code Project Page

  9. IROS
    Design and Kinematics for the Cystoscope of a Transurethral Continuum Surgical Robotic System
    Haomin Kuang, Jiaxin Guo, Wei Chen, Kai Xu, Yun-Hui Liu.
    IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2025.

  10. Arxiv
    MGVQ: Could VQ-VAE Beat VAE? A Generalizable Tokenizer with Multi-group Quantization
    Mingkai Jia, Wei Yin, Xiaotao Hu, Jiaxin Guo, Xiaoyang Guo, Qian Zhang, Xiao-Xiao Long, Ping Tan.
    Arxiv paper, 2025.
    PDF Code

  11. ROBIO
    MT-ViT: Multi-Task Video Transformer for Surgical Skill Assessment from Streaming Long-term Video
    Jiaxin Guo, Shaocong Han, and Yun-Hui Liu.
    IEEE International Conference on Robotics and Biomimetics (ROBIO), 2024.
    PDF

  12. TMI
    UC-NeRF: Uncertainty-aware Conditional Neural Radiance Fields from Endoscopic Sparse Views
    Jiaxin Guo, Jiangliu Wang, Ruofeng Wei, Di Kang, Qi Dou, and Yun-Hui Liu.
    IEEE Transactions on Medical Imaging (TMI), 2024.
    PDF Code

  13. AIS
    Scale-aware monocular reconstruction via robot kinematics and visual data in neural radiance fields
    Ruofeng Wei, Jiaxin Guo, Yiang Lu, Fangxun Zhong, Yunhui Liu, Dong Sun, Qi Dou.
    Artificial Intelligence Surgery (AIS), 2024.
    PDF

  14. MICCAI
    Free-SurGS: SfM-Free 3D Gaussian Splatting for Surgical Scene Reconstruction
    Jiaxin Guo, Jiangliu Wang, Di Kang, Wenzhen Dong, Wenting Wang, and Yun-Hui Liu.
    Medical Image Computing and Computer Assisted Intervention (MICCAI), 2024.
    PDF Code

  15. ICRA
    Ada-Tracker: Soft Tissue Tracking via Inter-Frame and Adaptive-template Matching
    Jiaxin Guo, Jiangliu Wang, Zhaoshuo Li, Tongyu Jia, Qi Dou, and Yun-Hui Liu.
    International Conference on Robotics and Automation (ICRA), 2024.
    PDF Code

  16. ECCV
    A visual navigation perspective for category-level object pose estimation
    Jiaxin Guo, Fangxun Zhong, Rong Xiong, Yun-Hui Liu, Yue Wang, and Yiyi Liao.
    European Conference on Computer Vision (ECCV), 2022.
    PDF Code

  17. RA-L
    PREGAN: Pose randomization and estimation for weakly paired image style translation
    Zexi Chen, Jiaxin Guo, Xuecheng Xu, Yue Wang, Rong Xiong.
    IEEE Robotics and Automation Letters (RA-L), 2021.
    PDF Code

  18. CAC
    Fast and robust bin-picking system for densely piled industrial objects
    Jiaxin Guo, Lian Fu, Mingkai Jia, Kaijun Wang, Shan Liu.
    Chinese Automation Congress (CAC), 2020.
    PDF Code

  19. ICARCV
    3D point-to-keypoint voting network for 6D pose estimation
    Weitong Hua, Jiaxin Guo, Yue Wang, Rong Xiong.
    International Conference on Control, Automation, Robotics and Vision (ICARCV), 2020.
    PDF

  20. RCAR
    Collaborative localization of aerial and ground mobile robots through orthomosaic map
    Xuecheng Xu*, Zexi Chen*, Jiaxin Guo*, Yue Wang, Yunkai Wang, Rong Xiong.
    IEEE International Conference on Real-time Computing and Robotics (RCAR), 2020.
    PDF

Selected Honor & Awards

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