Changjian Li (李昌健)

Postdoc Research Associate

Smart Geometry Processing Group
University College London

Address:
Room 5.12, Dept. of CS
66 Gower Street, London
WC1E 6BT, United Kingdom

Email:
    changjian.li@ucl.ac.uk
    chjili2011@gmail.com

Short Bio

I am now a Postdoc Research Associate of Smart Geometry Processing Group in University College London (UCL) under the supervison of Prof. Niloy Mitra. Before that I got my PhD degree from the University of Hong Kong and my supervisor is Prof. Wenping Wang.

Currently I am interested in Sketch-based Modeling, Deep Learning, 3D Vision, and Medical Image Analysis.

Research Experiences

Sept. 2018 - Jan. 2019 Visiting Graduate Student, University of Toronto Prof. Alec Jacobson and Prof. David Levin
Feb. 2016  - Aug. 2018 Research Intern (multiple times), Microsoft Research Asia Dr. Yang Liu and Dr. Hao Pan
Feb. 2014  - May 2014 Research Assistant, The University of Hong Kong Prof. Wenping Wang and Dr. Hao Pan

Publications


Floorplan-Jigsaw: Jointly Estimating Scene Layout and Aligning Partial Scans

Cheng Lin, Changjian Li, Wenping Wang.   International Conference on Computer Vision (ICCV), 2019.
[Project Page]  [Paper]  [Old Version: Floorplan Priors]

Our poster session is highlighted in the 'Computer Vision News, The magazine of the algorithm community': ICCV Daily 2019, Friday

ToothNet: Automatic Tooth Instance Segmentation and Identification from Cone Beam CT Images

Zhiming Cui, Changjian Li, Wenping Wang.   IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2019.
[Project page]  [Paper

Our poster session is highlighted in the technical news of IEEE Computer Society: Poster Sessions Provoke Deep Discussions at the 2019 Conference on CVPR.

Robust Flow-Guided Neural Prediction for Sketch-Based Freeform Surface Modeling

Changjian Li, Hao Pan, Yang Liu, Xin Tong, Alla Sheffer, Wenping Wang.  ACM Trans. Graph., 37(6), 2018, proceedings of SIGGRAPH Asia 2018
[Project page]  [Paper]  [Code,Data - GitHub]  [Supl]  [DOI]

Our Teaser image was selected as the cover image of Transaction on Graphics of year 2018.

BendSketch: Modeling Freeform Surfaces Through 2D Sketching

Changjian Li, Hao Pan, Yang Liu, Xin Tong, Alla Sheffer, Wenping Wang.  ACM Trans. Graph., 36(4), 2017, proceedings of SIGGRAPH 2017
[Project page]  [Paper]  [Data]


Flow Aligned Surfacing of Curve Networks

Hao Pan, Yang Liu, Alla Sheffer, Nicholas Vining, Changjian Li, Wenping Wang.  ACM Trans. Graph., 36(4), 2015, proceedings of SIGGRAPH 2015
[Project page]  [Paper]  [Data]

Invited Talks

Software College, Shandong University, Jinan
    Sketch-based Freeform Surface Modeling.
Oct. 2019

iDDA, The Chinese University of Hong Kong, Shenzhen
    SketchAShape: Sketch-based Freeform Surface Modeling.
Jul. 2019

IRC Lab, Shandong University
    Robust Flow-Guided Neural Prediction for Sketch-Based Freeform Surface Modeling.
    Automatic Tooth Instance Segmentation and Identification from CBCT Images.
Mar. 2019

DGP Lab, University of Toronto
    BendSketch: Modeling Freeform Surfaces Through 2D Sketching.
Sept. 2018

GAMES: Graphics And Mixed Environment Seminar, China
    Robust Flow-Guided Neural Prediction for Sketch-Based Freeform Surface Modeling.
Nov. 2018

Reviewer Service

  ACM SIGGRAPH Asia 2019
  Eurographics (EG) 2019
  Computer Graphics Forum (CGF) 2019
  Journal of Computer Science and Technology (JCST) 2019
  Pacific Graphics (PG) 2018
  Eurographics Symposium on Geometry Processing (SGP) 2018
  International Conference on Computer-Aided Design and Computer Graphics (CAD&CG) 2015

Teaching

2014-2015(S1) ENGG1111 - Computer Programming and Applications HKU CS
2015-2016(S1) COMP7507 - Visualization and Visual Analytics HKU CS
2016-2017(S1) ENGG1111 - Computer Programming and Applications HKU CS
2017-2018(S2) COMP2396 - Object Oriented Programming and Java HKU CS


©Changjian Li.  Last update: November, 2019.