Di (Kilian) Chang

常迪

CS Ph.D. @ University of Southern California

Research Scientist Intern @ TikTok

Department of Computer Science
Viterbi School of Engineering
University of Southern California
Email1: dichang at usc dot edu (primary)
Email2: dchang at ict dot usc dot edu
Email3: di dot chang at bytedance dot com

    [News] [Education] [Publications] [Experience]


About Me

                               

I am a first-year second-year third-year Ph.D. student in the Department of Computer Science at University of Southern California (USC) with Prof. Mohammad Soleymani of IHP-Lab. I'm currently doing my internship at TikTok-ByteDance Intelligent Creation Lab, working with Dr. Hongyi Xu and Dr. Linjie Luo. I also collaborate with Prof. Yue Wang and his PhD students for some research projects. I was a Research Scientist Intern at TikTok-ByteDance Intelligent Creation Lab, working with Dr. Yichun Shi and Dr. Xiao Yang during 2023 summer.

Before that, I spent four wonderful years during my undergraduate at Dalian University of Technology and Technical University of Munich, studying Informatics and Information Engineering. I'm honored to be advised by Prof. Matthias Niessner and Dr. Aljaž Božič during my praktikum at Visual Computing Group. I spent a wonderful summer in 2022 with Dr. Tong Zhang and Prof. Sabine Süsstrunk at EPFL CS and in 2021 with Prof. Dan Xu at HKUST CSE.

I'm interested in Computer vision, Multi-View Stereo and Neural Rendering. My current and past research focuses include:

Research opportunities:
For USC undergraduate students: We have openings for interns through CURVE program. Usually we recruit students (first-time researchers and continuing researchers) during Fall and Spring semesters, please apply early.

For USC master students: Please directly email Prof. Mohammad Soleymani for such inquiries. It would be better if you've attended CSCI 535 and obtained a good grade.

For all other students outside USC: we usually don't have openings during Fall and Spring semesters, but Prof. Mohammad Soleymani sometimes recruits good candidates (Undergrad/Ms/visiting PhD) during the Summer. Email him for further details.

I am happy to collaborate and/or answer questions about my research and my previous study at TUM and current PhD program at USC. If you are interested in research collaboration or have any inquiries about my experience, please send me an email.

News


Talks

EPFL School of Computer and Communication Sciences - 09/26/2024

Preprints

      
Learning-based Multi-View Stereo: A Survey

Fangjihua Wang*, Qingtian Zhu*, Di Chang*, Quankai Gao, Junlin Han, Tong Zhang, Richard Hartley, Marc Pollefeys
(*equal contribution   project lead)
Preprint

MagicPose4D: Crafting Articulated Models with Appearance and Motion Control

Hao Zhang*, Di Chang*, Fang Li, Mohammad Soleymani, Narendra Ahuja
(*equal contribution   equal advise)
Arxiv Preprint

[project page] [paper] [code] GitHub stars


Selected Publications [Google Scholar]

               
DIM: Dyadic Interaction Modeling for Social Behavior Generation

Minh Tran*, Di Chang*, Maksim Siniukov, Mohammad Soleymani
(*equal contribution)
European Conference on Computer Vision (ECCV), 2024.

[project page] [paper] [code] GitHub stars

MagicPose: Realistic Human Poses and Facial Expressions Retargeting with Identity-aware Diffusion.

Di Chang, Yichun Shi, Quankai Gao, Jessica Fu, Hongyi Xu, Guoxian Song, Qing Yan, Yizhe Zhu, Xiao Yang, Mohammad Soleymani
International Conference on Machine Learning (ICML), 2024.

[project page] [paper] [code] [video] GitHub stars

DiffPortrait3D: Controllable Diffusion for Zero-Shot Portrait View Synthesis

Yuming Gu, Xie You, Hongyi Xu, Guoxian Song, Yichun Shi, Di Chang, Jing Yang, Linjie Luo
IEEE/ CVF International Conference on Computer Vision and Pattern Recognition (CVPR), 2024. (Highlight)

[project page] [paper] [code] [video] GitHub stars

RC-MVSNet: Unsupervised Multi-View Stereo with Neural Rendering

Di Chang, Aljaž Božic, Tong Zhang, Qingsong Yan, Yingcong Chen, Sabine Süsstrunk and Matthias Nießner
European Conference on Computer Vision (ECCV), 2022.

[project page] [paper] [code] [video] GitHub stars

Generalized Binary Search Network for Highly-Efficient Multi-View Stereo

Zhenxing Mi, Di Chang and Dan Xu
IEEE/ CVF International Conference on Computer Vision and Pattern Recognition (CVPR), 2022.

[project page] [paper] [code] GitHub stars


Education

University of Southern California, Los Angeles, USA
(Aug. 2022 - Present)

  • Doctor of Philosophy in Computer Science
  • Major Orientation: Deep Learning for 3D Vision and Affective Computing

Technical University of Munich, Munich, Germany (Aug. 2021 - Jul. 2022)

  • Bachelor of Science in Informatics
  • Major Orientation: Deep Learning for 3D Perception, 3D Scanning and Spatial Learning
  • Overall GPA: 1.2/1.0
  • Bachelor thesis: "Supervised and Unsupervised Multi View Stereo for Depth Inference"

Dalian University of Technology, Dalian, China (Sep. 2018 - Jul. 2021)

  • Bachelor of Engineering in Eletronic Information Engineering
  • Major Orientation: Object Detection and Tracking
  • Overall GPA: 91.5/100 | 3.93/4.0

Intern & Work Experience

TikTok, San Jose, CA, USA (May. 2024 - Current)

TikTok, Los Angeles, CA, USA (Aug. 2023 - Nov. 2023)

  • Position: Research Scientist Intern (Part-time) at ByteDance Intelligent Creation Lab
  • Supervisor: Dr. Yichun Shi , Dr. Guoxian Song , Dr. Hongyi Xu , and Dr. Xiao Yang
  • Project: Half-body Motion Transfer with Diffusion Models --> ICML 2024

TikTok, San Jose, CA, USA (May. 2023 - Aug. 2023)

  • Position: Research Scientist Intern at ByteDance Intelligent Creation Lab
  • Supervisor: Dr. Yichun Shi , Dr. Guoxian Song , Dr. Hongyi Xu , and Dr. Xiao Yang
  • Project: Text-guided Half-body Image Editing with Diffusion Models --> CVPR 2024

EPFL, Lausanne, Switzerland (Jul. 2022 - Oct. 2022)

  • Position: Summer@EPFL (Top 2% from the candidates in the world) hired by IVRL
  • Supervisor: Dr. Tong Zhang and Prof. Sabine Süsstrunk
  • Project: Video Synthesis with Diffusion Models

TUM, Munich, Bayern, Germany (Mar. 2022 - Aug. 2022)

  • Position: Guided Research in 3D AI Group
  • Supervisor: Prof. Angela Dai
  • Project: Single-View Reconstruction and Category-level NeRF

TUM, Munich, Bayern, Germany (Aug. 2021 - Mar. 2022)

HKUST, Hong Kong, China (Mar. 2021 - Sep. 2021)

Students


Academic Service

Reviewer of the following conferences:

ECCV 2022
NeurIPS 2022
FG 2024
CVPR 2024
ACII 2024
ECCV 2024
NeurIPS 2024
ICLR 2025

Teaching


Miscellaneous

Camaro SS

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Last update: Sep. 30, 2024