Research Fellow

Visual Interactive Media Lab
Department of ECE
National University of Singapore
Block E4, Level 5, Room 45
4 Engineering Drive 3
Singapore 117583
E-mail: elexuxu AT Google Scholar GitHub LinkedIn

I am a Research Fellow working with Assist Prof. Lee Gim Hee in the Computer Vision and Robotic Perception (CVRP) Lab of School of Computing, Natinoal University of Singapore (NUS). Prior to the CVRP Lab, I worked with Prof. Cheong Loong Fah in Visual Interactive Media Lab of NUS from Sep 2016 to Mar 2019. I received a PhD degree from Computer Vision Group in the School of Electronic Engineering and Computer Science at Queen Mary, University of London (QMUL), jointly supervised by Prof. Shaogang Gong and Dr. Tao Xiang. I was also working closely with Dr. Timothy Hospedales .

Before joining the Computer Vision Group in QMUL I received my B.Eng in Automation from Sichuan University and then had spent 2 years in 3D Vision Lab at Sichuan University supervised by Prof. Yusheng Liu and Prof. Kai Liu.

My research interests include point cloud analysis, motion segmentation, zero-shot learning and surveillance scene understanding.

Education Background

  • PhD in Computer Science, Queen Mary University of London, 2016
    Thesis: Semantic Spaces for Video Analysis of Behaviour
    Supervisors: Prof. Shaogang Gong and Dr. Tao Xiang
  • M.Sc in Control Theory and Engineering, Sichuan University, 2012
    Supervisor: Prof. Yusheng Liu
  • B.Eng in Automation, Sichuan University, 2010
    Advisor: Prof. Yong Lei

Professional Experience

  • Research Fellow in SoC, National University of Singapore
    Supervisors: Prof. Gim Hee Lee
  • Research Fellow in ECE, National University of Singapore
    Project: Dynamic Vision for Actions
    Supervisors: Prof. Loong-Fah Cheong

Academic Services

  • IEEE Member
Journal Reviewer
  • IEEE Transactions on Image Processing (TIP)
  • ACM Transactions on Knowledge Discovery from Data (TKDD)
  • IEEE Access
  • GeoInformatica - Springer
  • Neural Computing & Applications - Springer
  • IET Computer Vision
Conference Reviewer
  • CVPR
  • ICCV
  • ACM MM
  • IROS
  • BMVC
My Google Scholar Profile


C3AE: Exploring the Limits of Compact Model for Age Estimation PDF
Chao Zhang, Shuaicheng Liu, Xun Xu and Ce Zhu
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2019

Learning for Multi-Model and Multi-Type Fitting ArXiv
Xun Xu, Loong-Fah Cheong and Zhuwen Li
ArXiv:1901.10254, 2019


Motion Segmentation by Exploiting Complementary Geometric Models PDF ProjectPage Bibtex
Xun Xu, Loong-Fah Cheong and Zhuwen Li
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2018

Robust Video Background Identification by Dominant Rigid Motion Estimation PDF Bibtex
Kaimo Lin, Nianjuan Jiang, Loong Fah Cheong, Jiangbo Lu and Xun Xu
Asian Conference on Computer Vision (ACCV), 2018

Image Ordinal Classification and Understanding: Grid Dropout with Mask Label PDF Bibtex [Oral Presentation]
Chao Zhang, Ce Zhu, Jimin Xiao, Xun Xu and Yipeng Liu
IEEE Conference on Multimedia and Expo (ICME), 2018

Visual aesthetic understanding: Sample-specific aesthetic classification and deep activation map visualization PDF Bibtex
Chao Zhang, Ce Zhu, Xun Xu, Yipeng Liu, Jimin Xiao and Tammam Tillo
Signal Processing: Image Communication, 2018

Image ordinal classification with deep multi-view learning PDF Bibtex
Chao Zhang, Xun Xu and Ce Zhu
Electronic Letters, 2018


Transductive Zero-Shot Action Recognition by Word-Vector Embedding PDF Data Bibtex
Xun Xu, Timothy Hospedales and Shaogang Gong
International Journal of Computer Vision (IJCV), 2017

Discovery of Shared Semantic Spaces for Multi-Scene Video Query and Summarization PDF Supplementary Slides Project Page Bibtex
Xun Xu, Timothy Hospedales and Shaogang Gong
IEEE Transactions on Circuits and Systems for Video Technology (TCSVT), 2017

Zero-Shot Crowd Behaviour Recognition PDF
Xun Xu, Shaogang Gong and Timothy Hospedales
In Murino, Shah, Cristani, Savarese (Eds.), Group and Crowd Behaviour Understanding in Computer Vision , Elsevier, April 2017.


Multi-Task Zero-Shot Action Recognition with Prioritised Data Augmentation PDF Data Bibtex
Xun Xu, Timothy Hospedales and Shaogang Gong
In Proc. European Conference on Computer Vision (ECCV), Amsterdam, The Netherlands, October 2016.


Semantic Embedding Space for Zero ­Shot Action Recognition PDF Slides Demo Bibtex [★ recognized as top 10% papers]
Xun Xu, Timothy Hospedales and Shaogang Gong
In Proc. International Conference on Image Processing (ICIP), Quebec, Canada, September, 2015


Cross-Domain Traffic Scene Understanding by Motion Model Transfer PDF Code Bibtex
Xun Xu, Shaogang Gong and Timothy Hospedales
In Proc. ACM International Conference on Multimedia, Workshop on Analysis and Retrieval of Tracked Events and Motion in Imagery Streams, Barcelona, Spain, October, 2013

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Updated Jan 2019