Di (Kilian) Chang

常迪

CS Ph.D. @ University of Southern California

Visiting Researcher @ École Polytechnique Fédérale de Lausanne IVRL

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 epfl dot ch

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

About Me

I am a first-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 also currently a visiting researcher at Image and Visual Representation Lab working with Dr. Tong Zhang and Prof. Sabine Süsstrunk .

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 M.Sc Aljaž Božič during my praktikum at Visual Computing Group, as well as Prof. Angela Dai when I was a guided research student at 3D AI Group. I spent a wonderful summer in 2021 with Prof. Dan Xu at HKUST CSE.

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

3D Vision, especially Multi-View Geometry and Scene Reconstruction with Deep Learning approaches.
Video Generation and View Synthesis with Generative Models(DDPM).
Multimodal Machine Learning.
Facial Expression Analysis and Affective Computing.

Research opportunities: 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. I especially encourage undergraduate students from DUT who want to work on interesting vision projects targeting top-tier conferences/journals to reach out.

News

[2022/08/19] Today I start my Ph.D. at USC Viterbi Computer Science! Fight on, Trojans!

[2022/07/04] My first single-first-author paper RC-MVSNet has been accepted by ECCV 2022! See you in Tel Aviv!

[2022/04/08] I'm joining IHP-Lab at USC as a PhD student, see you in Los Angeles!

[2022/03/15] Our GBi-Net has been accepted by CVPR 2022!

[2022/03/07] I will join 3D AI Lab at Technische Universität München as a guided research student with Professor Angela Dai.

[2022/01/15] I will join Image and Visual Representation Lab at École Polytechnique Fédérale de Lausanne as a research intern/visiting researcher.

[2021/10/15] I will join Visual Computing & Artificial Intelligence Lab at Technische Universität München with Professor Matthias Niessner.

[2021/03/04] I will join Prof.Xu’s vision group at HKUST as a research intern during summer 2021.

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

Selected Publications [Google Scholar]

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]

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]

Intern & Work Experience

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 --> Ongoing Project

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)

Position: Research Praktikum in Visual Computing Group
Supervisor: Prof. Matthias Niessner and M.Sc Aljaž Božič
Project: Unsupervised Multi-View Stereo --> ECCV 2022

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

Position: Research Intern in HKUST Vision Group (MM-Lab at HKUST)
Supervisor: Prof. Dan Xu and M.Sc Zhenxing Mi
Project: Multi View Stereo Depth Estimation --> CVPR 2022

DUT, Dalian, Liaoning, China (Sep. 2020 - Feb. 2021)

Position: Research Assistant in IIAU-Lab
Supervisor: Prof. Dong Wang and Prof. Huchuan Lu
Project: Underwater Robotics Vision --> Technical Report

Honors and Awards

Mar 2022 Outstanding UG graduates of DUT
Oct 2021 Outstanding Undergraduate of DUT
May 2021 The Third prize 2021 China Underwater Robot Professional Contest - Acoustics Track
May 2021 The Second prize 2021 China Underwater Robot Professional Contest - Optics Track
Oct 2020 Outstanding Undergraduate of DUT
Oct 2019 Outstanding Undergraduate of DUT

Academic Service

Reviewer of the following conferences/journals:

ECCV 2022
NeurIPS 2022

Teaching

Graduate Teaching Assistant, CSCI 103 Introduction to Programming - 2022 Fall

Miscellaneous

(10 yrs +) 🎷Clarinet, professional player, once level 9 certification of The Central Conservatory of Music.
(8 yrs +) 🏸Badminton, I am a member of DUT EE Department badminton team.
(5 yrs +) 🎮Video Games, I am a lover of League of Legends, highest rank: Platinum II of EU server S12.

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Last update: Apr. 10, 2022