Lingjie Liu

Ph.D. Candidate

Tel: +852 5438-2502

Email: liulingjie0206(AT)gmail.com

Office: Room 401, Chow Yei Ching Building, The University of Hong Kong, Hong Kong

MAT-Net: Medial Axis Transform Network for 3D Object Recognition

Jianwei Hu, Bin Wang, Lihui Qian, Yiling Pan, Xiaohu Guo, Lingjie Liu, Wenping Wang

International Joint Conferences on Artificial Intelligence (IJCAI) 2019

[Project page(Coming soon)] [Paper(Coming soon)]
Neural Animation and Reenactment of Human Actor Videos

Lingjie Liu, Weipeng Xu, Michael Zollhöfer, Hyeongwoo Kim, Florian Bernard, Marc Habermann, Wenping Wang, Christian Theobalt

ACM Transactions on Graphics, to be presented at SIGGRAPH 2019

[Project page] [Paper] [Code(Coming soon)] [Video] [Media] [bibtex]
CurveFusion: Reconstructing Thin Structures from RGBD Sequences

Lingjie Liu*, Nenglun Chen*, Duygu Ceylan, Christian Theobalt, Wenping Wang, Niloy J. Mitra

SIGGRAPH Asia 2018

[Project page] [Paper] [Code] [Data] [Video] [bibtex]
Image-based Reconstruction of Wire Art

Lingjie Liu, Duygu Ceylan, Cheng Lin, Wenping Wang, Niloy J. Mitra

SIGGRAPH 2017

[Project page] [Paper] [Code] [Video] [bibtex] [Media]
Correlation-preserving Photo Collage

Lingjie Liu, Hongjie Zhang, Guanmei Jing, Yanwen Guo, Zhonggui Chen, Wenping Wang

IEEE Transactions on Visualization and Computer Graphics 2017

[Paper] [bibtex]
Neural Human Video Rendering: Joint Learning of Dynamic Textures and Rendering-to-Video Translation

In progress

Synthesizing realistic videos of humans using neural networks has been a popular alternative to the conventional graphics-based rendering pipeline due to its high efficiency. Existing works typically formulate this as an image-to-image translation problem in 2D screen space, which leads to artifacts such as over-smoothing, missing body parts, and temporal instability of fine-scale detail, such as pose-dependent wrinkles in the clothing. We are developing a novel human video synthesis method that approaches these limiting factors by explicitly disentangling the learning of time-coherent fine-scale details from the pose-dependent embedding of the human in 2D screen space.

Point Cloud Reconstruction

Joint project with the Hong Kong Applied Science and Technology Research Institute (ASTRI) with a total budget of 500,000 HKD

2014-Ongoing

The University of Hong Kong

Ph.D, Computer Science

Hong Kong, China

Hong Kong PhD Fellowship (HKPF) holder (Top 100 PhD students in Hong Kong)

Supervised by Prof. Wenping Wang.

2010-2014

Huazhong University of Science and Technology

BEng, Computer Science and Technology

Wuhan, China

Ranking: 1/329, GPA: 90.68/100

CCF (China Computer Federation) Top 100 Excellent Undergraduates

Won "Best Linpack" Award in International Supercomputer Competition 2013 (ISC'13, held in Germany)

Won "Best MIC Performance" Award in Asia Student Supercomputer Challenge 2013 (ASC'13, held in China)

The "Meritorious Winner" in Mathematical Contest in Modeling (MCM) 2013

Advised by Prof. Hai Jin.

2019

New York University

Visiting Scholar

New York, USA

Courant Institute of Mathematical Sciences

Visited Prof. Daniele Panozzo at New York University from Feb 2019 to June 2019.

Working on a project of free-view rendering of human motion reenactment.

2018-2019

Max-Planck-Institute for Informatics

Intern

Saarbrucken, Germany

3D Video and Vision-based Graphics Group

Visited Prof. Christian Theobalt at Max-Planck-Institute for Informatics from March 2018 to Jan 2019.

Completed the work "Neural Animation and Reenactment of Human Actor Videos" (TOG).

Extended the work above to joint learning of dynamic textures and rendering-to-video translation (To be submitted).

2016-2017

University College London

Visiting Scholar

London, UK

Smart Geometry Processing Group

Visited Prof. Niloy J. Mitra at UCL from Sept 2016 to Jan 2017, and from May 2017 to Nov 2017.

Completed the work "Image-based Reconstruction of Wire Art" (SIGGRAPH 2017).

Completed the work "CurveFusion: Reconstructing Thin Structures from RGBD Sequences" (SIGGRAPH Asia 2018).

June - August 2018
CurveFusion: RGBD-based Reconstruction of Thin Structures

The Computational Fabrication Group, MIT CSAIL

Department of Computer Science, Harvard University

Department of Automation, Tsinghua University

Baidu Research, Beijing

Department of Computer Science, University of British Columbia

SFU Visual Computing Workshop

March - May 2017
Image-based reconstruction of wire art

School of Mathematical Sciences, University of Science and Technology of China

Department of Computer Science and Technology, Nanjing University

Department of Computer Science and Technology, South China University of Technology

HKPFS (Hong Kong PhD Fellowship Scheme)

Aug 2014 * Research Grants Council (RGC) in Hong Kong

CCF (China Computer Federation) Top 100 Excellent Undergraduates

2014 * CCF (China Computer Federation)

Meritorious Winner
Mathematical Contest in Modeling (MCM)

Jan 2013 * MCM Committee

Best Linpack Award
HPCAC-ISC’13 Student Cluster Challenge, Leipzig, Germany

Jul 2013 * HPCAC-ISC committee

Best Linpack Award for the highest score (8.455 Tflops with 3000 Watts), which created the new world record among student cluster challenges.

Best MIC Performance Award
Asia Student Supercomputer Challenge(ASC’13), Shanghai, China

Apr 2013 * ASC Committee

National Scholarship

Ministry of Education of China

2013, 2012, 2011