About
I'm currently a Principal Research Scientist and Senior Manager in the Spatial Intelligence Lab at NVIDIA, working on world (action) models. I'm based at NVIDIA's headquarters in Santa Clara. Before NVIDIA, I worked on autonomous driving at Tesla Autopilot and on computational photography at Adobe NextCam. I completed my Ph.D. at MIT CSAIL, advised by Bill Freeman, with research in computer vision and computer graphics. While at MIT, I was also mentored by Jon Barron and Yun-Ta Tsai during internships at Google Research. My dissertation Shape, Reflectance, and Illumination From Appearance explores inverse rendering and its applications, including 3D shape reconstruction and free-viewpoint relighting. I completed my undergraduate studies at the National University of Singapore (NUS), where I conducted neuroscience research with Thomas Yeo.
Recent Experience
| Senior Machine Learning Scientist, Tesla Autopilot, 2022–2025 |
| Computer Scientist, Adobe NextCam, 2021–2022 |
| Student Researcher, Google Research, 2019–2021, with Jon Barron and Yun-Ta Tsai |
| Ph.D., MIT CSAIL, 2016–2021, with Bill Freeman |
News
| Nov. 2026 | Released BirdDreams, a world model with precise ego control and reactive traffic. |
|---|---|
| Jul. 2025 | Joined the Spatial Intelligence Lab at NVIDIA. |
| Jun. 2025 | Robotaxi launched in Austin, TX! |
| Sep. 2024 | Helped ship Actually Smart Summon to FSD customers. |
| Mar. 2024 | Shipped Autopark to FSD customers! |
| Dec. 2023 | Shipped High-Fidelity Park Assist to all Tesla cars! |
| Apr. 2023 | Released DiffusionRig (personalized face editing), a CVPR 2023 paper. |
| Oct. 2022 | Joined Tesla Autopilot to work on 3D perception. |
| Oct. 2021 | Joined Adobe NextCam to work on computational photography. |
| Aug. 2021 | Graduated from MIT (doctoral dissertation). |
| Aug. 2021 | NeRFactor conditionally accepted to SIGGRAPH Asia. |
| Dec. 2020 | Neural Light Transport (NLT) accepted for publication in TOG, to be presented at SIGGRAPH in August 2021. |
| Apr. 2019 | MoSculp on display at the MIT Museum (photos)! |
| Jan. 2019 | Awarded a Snap Research Fellowship. |
| Dec. 2018 | Oral presentation of GenRe at NeurIPS. |
| Sep. 2018 | MoSculp featured on the MIT homepage on 9/19 and covered by Forbes, BBC, etc. |
| Oct. 2016 | Paper on Bayesian modeling of Alzheimer's disease heterogeneity out in PNAS and covered by Psychology Today, MGH/HMS, etc. |
| May 2016 | Work on Alzheimer's disease subtypes received the Magna Cum Laude Award and was selected for an oral presentation at ISMRM 2016. |
Products
Full Self-Driving (FSD)
Shipped 4D perception and E2E safety improvements in FSD releases to both customer and Robotaxi fleets, contributing to in-car models and offline data pipelines that scale to 20K GPUs.
Tesla 2022–2025
Actually Smart Summon
Shipped 4D perception improvements that helped Teslas avoid collisions while autonomously crossing parking lots to pick up their owners.
Tesla 2024
Autopark
Developed the offline component of the system predicting parkable spaces, enabling Teslas to park autonomously into parallel, perpendicular, and angled spaces—marked or unmarked—in unseen environments.
Tesla 2023
[credit]
High-Fidelity Park Assist
Shipped this next-generation, real-time 4D reconstruction system to all Teslas, covering deformable human bodies, car geometry from partial views, and large-scale static scenes.
Tesla 2023
Recent Publications
* Equal contribution; † Corresponding authors.
BirdDreams: Joint Perspective and BEV Video Generation for a Plausible, Reactive Driving World Model
Junyoung Seo, Jaewoo Seo, Seungryong Kim, Laura Leal-Taixé, †, Seung Wook Kim†
arXiv 2026
DriveJudge: Rethinking Autonomous Driving Evaluation with Vision-Language Models
Xinglong Sun, Kevin Xie, Jenny Schmalfuss, Despoina Paschalidou, , Sanja Fidler, Kashyap Chitta, Jose M. Alvarez
arXiv 2026
DiffusionRig: Learning Personalized Priors for Facial Appearance Editing
Zheng Ding, Xuaner Zhang, Zhihao Xia, Lars Jebe, Zhuowen Tu,
CVPR 2023
Portrait Reconstruction and Relighting Using the Sun as a Light Stage
Yifan Wang, Aleksander Holynski, , Xuaner Zhang
CVPR 2023
Shape, Reflectance, and Illumination From Appearance
Committee: William T. Freeman, Jonathan T. Barron, Antonio Torralba
MIT Doctoral Dissertation 2021
NeRFactor: Neural Factorization of Shape and Reflectance Under an Unknown Illumination
, Pratul P. Srinivasan, Boyang Deng, Paul Debevec, William T. Freeman, Jonathan T. Barron
TOG 2021 (Proc. SIGGRAPH Asia)
Editing Conditional Radiance Fields
Steven Liu, , Zhoutong Zhang, Richard Zhang, Jun-Yan Zhu, Bryan Russell
ICCV 2021
NeRV: Neural Reflectance and Visibility Fields for Relighting and View Synthesis
Pratul P. Srinivasan, Boyang Deng, , Matthew Tancik, Ben Mildenhall, Jonathan T. Barron
CVPR 2021
Neural Light Transport for Relighting and View Synthesis
, Sean Fanello, Yun-Ta Tsai, Tiancheng Sun, Tianfan Xue, Rohit Pandey, Sergio Orts-Escolano, Philip Davidson, Christoph Rhemann, Paul Debevec, Jonathan T. Barron, Ravi Ramamoorthi, William T. Freeman
TOG 2021 (Presented at SIGGRAPH)
Multi-Plane Program Induction With 3D Box Priors
Yikai Li *, Jiayuan Mao *, , William T. Freeman, Joshua B. Tenenbaum, Noah Snavely, Jiajun Wu
NeurIPS 2020
Light Stage Super-Resolution: Continuous High-Frequency Relighting
Tiancheng Sun, Zexiang Xu, , Sean Fanello, Christoph Rhemann, Paul Debevec, Yun-Ta Tsai, Jonathan T. Barron, Ravi Ramamoorthi
TOG 2020 (Proc. SIGGRAPH Asia)
Portrait Shadow Manipulation
Xuaner Zhang, Jonathan T. Barron, Yun-Ta Tsai, Rohit Pandey, , Ren Ng, David E. Jacobs
TOG 2020 (Proc. SIGGRAPH)
Perspective Plane Program Induction From a Single Image
Yikai Li *, Jiayuan Mao *, , William T. Freeman, Joshua B. Tenenbaum, Jiajun Wu
CVPR 2020
Latent Atrophy Factors Related to Phenotypical Variants of Posterior Cortical Atrophy
Colin Groot, B. T. Thomas Yeo, Jacob W. Vogel, , Nanbo Sun, Elizabeth C. Mormino, Yolande A. L. Pijnenburg, Bruce L. Miller, Howard J. Rosen, Renaud La Joie, Frederik Barkhof, Philip Scheltens, Wiesje M. van der Flier, Gil D. Rabinovici, Rik Ossenkoppele
Neurology 2020
Program-Guided Image Manipulators
Jiayuan Mao *, *, Yikai Li, William T. Freeman, Joshua B. Tenenbaum, Jiajun Wu
ICCV 2019
Reconciling Dimensional and Categorical Models of Autism Heterogeneity: A Brain Connectomics and Behavioral Study
Siyi Tang *, Nanbo Sun *, Dorothea L. Floris, , Adriana Di Martino, B. T. Thomas Yeo
Biological Psychiatry 2019
Learning to Reconstruct Shapes From Unseen Classes
*, Zhoutong Zhang *, Chengkai Zhang, Joshua B. Tenenbaum, William T. Freeman, Jiajun Wu
NeurIPS 2018
Oral Presentation (Oral/Accepted/Submitted: 30/1011/4856)
MoSculp: Interactive Visualization of Shape and Time
, Tali Dekel, Tianfan Xue, Andrew Owens, Qiurui He, Jiajun Wu, Stefanie Mueller, William T. Freeman
UIST 2018
Press Coverage: Forbes, BBC, MIT, MIT homepage (9/19), etc.
Outreach: MIT Museum
Learning Shape Priors for Single-View 3D Completion and Reconstruction
Jiajun Wu *, Chengkai Zhang *, , Zhoutong Zhang, William T. Freeman, Joshua B. Tenenbaum
ECCV 2018
Pix3D: Dataset and Methods for Single-Image 3D Shape Modeling
Xingyuan Sun *, Jiajun Wu *, , Zhoutong Zhang, Chengkai Zhang, Tianfan Xue, Joshua B. Tenenbaum, William T. Freeman
CVPR 2018
Bayesian Model Reveals Latent Atrophy Factors With Dissociable Cognitive Trajectories in Alzheimer's Disease
, Elizabeth C. Mormino, Nanbo Sun, Reisa A. Sperling, Mert R. Sabuncu, B. T. Thomas Yeo
PNAS 2016
Magna Cum Laude Award & Oral Presentation at ISMRM 2016
Press Coverage: Psychology Today, MGH/HMS, etc.









