About ME

Jiawei Liu (刘佳玮)

jiawei.liu@u.nus.edu
Google Scholar
Curriculum Vitae
Github

I am currently a thrid-year PhD student in Show Lab, National University of Singapore, advised by Prof. Mike Zheng Shou and Prof. Jussi Keppo. I am working on 3D/4D/Video Dynamic Scene Reconstruction, Editing, and Generation.

News

  • 2023.07. Two papers HOSNeRF and STPrivacy are accepted to International Conference on Computer Vision (ICCV), 2023. Congratulations!

  • 2022.10. I am awarded with NeurIPS 2022 Scholar Award and will attend NeurIPS 2022 conference. Welcome to approach me and chat!

  • 2022.09. Our paper "DeVRF: Fast Deformable Voxel Radiance Fields for Dynamic Scenes." is accepted by Thirty-sixth Conference on Neural Information Processing Systems (NeurIPS), 2022.

  • 2021.09. Our paper "Uncertainty analysis of mechanical dynamics by combining response surface method with signal decomposition technique." is accepted by Mechanical Systems and Signal Processing (SCI source, Q1).

  • 2021.01. I am awarded with President's Graduate Fellowship (PGF) and start my PhD career in National University of Singapore.

  • 2020.06. I am awarded with Outstanding graduate of School of Aerospace Engineering, Tsinghua University.

  • 2020.03. Our paper "Uncertainty analysis of mechanical dynamic using HHT and LMD." is accepted by 25th International Congress of Theoretical and Applied Mechanics (25th ICTAM).

  • 2019.10. I am awarded with Scholarship of Second Prize in Tsinghua University, which is awarded to TOP 5% students in Tsinghua University.

  • 2019.08. Our paper "An efficient multibody dynamic model of three-dimensional meshing contacts in helical gear-shaft system and its solution." is accepted by Mechanism and Machine Theory (SCI source, Q1).

  • 2019.08. I will attend Chinese Congress of Theoretical and Applied Mechanics (CCTAM) from Aug. 25 to Aug. 28 in Hangzhou, China and welcome to approach me and chat!

  • 2019.07. I will attend ECCOMAS 2019 Multibody Dynamic Conference from July 14 to July 19 in Duisburg, Germany and welcome to approach me and chat!

  • 2019.02. Our paper "Dynamic characteristics of helical gear based on Arbitrary Lagrangian Eulerian formulation." is accepted by ECCOMAS 2019 Multibody Dynamic Conference.

  • 2018.01. I start to work as a Research Assistant in Multibody Dynamics Laboratory, Tsinghua University (THU), China, supervised by Prof. Gexue Ren, until my graduation in THU.

Education

Doctor of Philosophy in National University of Singapore (NUS), Singapore, 2021.01 - Present

Institute of Data Science, NUS Graduate School for Integrative Sciences and Engineering. Research topic: 3D avatar and scene. Main Advisor: Prof. Mike Zheng Shou, Co-advisor: Prof. Jussi Keppo.

Master of Science in Tsinghua University (THU), China, 2018.09 - 2020.07

Department of Engineering Mechanics, Advisor: Prof. Gexue Ren. Cumulative GPA: 3.70/4.0.


Bachelor in Northwestern Polytechnical University (NWPU), China, 2014.09 - 2018.06

Honors College. Cumulative GPA: 3.80/4.0 (91.84/100), Rank: 2/145, Major GPA: 3.88/4.0 (93.96/100).


Preprints

DynVideo-E: Harnessing Dynamic NeRF for Large-Scale Motion- and View-Change Human-Centric Video Editing.

Jia-Wei Liu, Yan-Pei Cao, Jay Zhangjie Wu, Weijia Mao, Yuchao Gu, Rui Zhao, Jussi Keppo, Ying Shan, Mike Zheng Shou.
arXiv, 2023.
PDF BibTex Project Code (Coming Soon!)

Show-1: Marrying Pixel and Latent Diffusion Models for Text-to-Video Generation.

David Junhao Zhang*, Jay Zhangjie Wu*, Jia-Wei Liu*, Rui Zhao, Lingmin Ran, Yuchao Gu, Difei Gao, Mike Zheng Shou. (* equal contribution)
arXiv, 2023.
PDF BibTex Project Code

MotionDirector: Motion Customization of Text-to-Video Diffusion Models.

Rui Zhao, Yuchao Gu, Jay Zhangjie Wu, David Junhao Zhang, Jia-Wei Liu, Weijia Wu, Jussi Keppo, Mike Zheng Shou.
arXiv, 2023.
PDF BibTex Project Code


Publications

HOSNeRF: Dynamic Human-Object-Scene Neural Radiance Fields from a Single Video.

Jia-Wei Liu, Yan-Pei Cao, Tianyuan Yang, Zhongcong Xu, Jussi Keppo, Ying Shan, Xiaohu Qie, Mike Zheng Shou.
International Conference on Computer Vision (ICCV), 2023.
PDF BibTex Project Code

STPrivacy: Spatio-Temporal Privacy-Preserving Action Recognition.

Ming Li, Xiangyu Xu, Hehe Fan, Pan Zhou, Jun Liu, Jia-Wei Liu, Jiahe Li, Jussi Keppo, Mike Zheng Shou, Shuicheng Yan.
International Conference on Computer Vision (ICCV), 2023.
PDF BibTex Code (Coming Soon!)

DeVRF: Fast Deformable Voxel Radiance Fields for Dynamic Scenes.

Jia-Wei Liu, Yan-Pei Cao, Weijia Mao, Wenqiao Zhang, David Junhao Zhang, Jussi Keppo, Ying Shan, Xiaohu Qie, Mike Zheng Shou.
Thirty-sixth Conference on Neural Information Processing Systems (NeurIPS), 2022.
PDF BibTex Project Code

An efficient multibody dynamic model of three-dimensional meshing contacts in helical gear-shaft system and its solution.

Jia-Wei Liu, Jia-Peng Liu, Xuan-Bo Shu, Aki Mikkola, Ge-Xue Ren.
Mechanism and Machine Theory (SCI source, Q1).
PDF BibTex

Dynamic characteristics of helical gear based on Arbitrary Lagrangian Eulerian formulation.

Jia-Wei Liu, Jia-Peng Liu, Jia-Lun Yao, Ge-Xue Ren.
ECCOMAS 2019 Multibody Dynamic Conference, Duisburg, Germany.
PDF BibTex

An amplitude-nested surrogate model for nonlinear response using double-layer Hilbert–Huang transform.

Jiang Cui, Jia-Wei Liu, Ge-Xue Ren, Zhi-Hua Zhao, Xiaoting Rui.
Mechanical Systems and Signal Processing (SCI source, Q1).
PDF BibTex

Uncertainty analysis of mechanical dynamics by combining response surface method with signal decomposition technique.

Jiang Cui, Zhi-Hua Zhao, Jia-Wei Liu, Peng-Xiang Hu, Ru-Neng Zhou, Ge-Xue Ren.
Mechanical Systems and Signal Processing (SCI source, Q1).
PDF BibTex


Work Experiences

2018.01 - 2020.07: Research Assistant in Multibody Dynamics Laboratory, Tsinghua University.

  • I had a wonderful time with these people! The memory and time with them are mostly cherished!
  • I was contributed to the research of efficient numerical algorithms in multibody dynamics, with applications on mechanical systems.

Awards

  • Research Incentive Award, National University of Singapore, 2023

  • NeurIPS 2022 Scholar Award, 2022

  • President's Graduate Fellowship (PGF), National University of Singapore, 2021

  • Outstanding graduate of School of Aerospace Engineering, Tsinghua University (Awarded to top 8% students), 2020

  • Scholarship of Second Prize in Tsinghua University (Awarded to top 5% students), 2019

  • Scholarship of Innovation and Entrepreneurship in Honors College, 2018

  • Second Prize of C++ Programming in Northwestern Polytechnical University, 2017

  • Third Prize of National English Contest for College Student, 2017

  • 2*Second Prize of Mathematical Modeling in Northwestern Polytechnical University, 2015, 2016

  • 3*Scholarship of First Prize in Honors College, 2015, 2016, 2017

  • 3*Scholarship of Outstanding Student in Northwestern Polytechnical University, 2015, 2016, 2017

  • National Scholarship (Awarded to top 1% students in Honors College), 2015

Academic Services

  • Reviewer: CVPR 2023 (External), ICCV 2023, ACMMM 2023, CVPR 2024.

  • PC Member: SOICT 2023.