Wenbo Ji   jī / yí文博

I am an M.Sc. student at the Technical University of Munich and a research intern at Agile Robots SE. I build generative and geometric models for interactive humans, dynamic 3D scenes, and robot learning.

My current work studies camera-controlled human motion video diffusion with Prof. Matthias Nießner and cross-embodiment video generation for dexterous manipulation.

I am seeking Ph.D. opportunities for Fall 2027 in 3D/4D scene representation, video generation, and robot world models.

Previously, I collaborated with Prof. Daniel Cremers, Prof. Nassir Navab, and Prof. Benjamin Busam on 3D reconstruction and tracking. I earned an M.Sc. in Computer Science from Tongji University and a B.Sc. in Information and Computing Science from Nanjing Tech University.

Wenbo Ji portrait
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News

04/2026

I joined Agile Robots SE as a research intern working on world models for robot dexterous manipulation.

10/2025

Our paper CSG-Fusion received the Best Paper Award at the ICCV 2025 Workshop E2E3D (workshop track).

08/2025

I graduated from Tongji University with a Master's degree in Computer Science.

06/2025

Our paper LiteTracker is accepted by MICCAI 2025.

01/2025

Our paper RE0 is accepted by ICRA 2025.

08/2024

I joined ImFusion as a research intern on dense video point tracking.

01/2024

I joined TUM-CVG and TUM-DI-LAB under the co-supervision of Prof. Yan Xia and Prof. Chuanxia Zheng.

05/2023

I joined the Technical University of Munich as a Master's student in Electrical Engineering and Information Technology.

Research Interests

  • Past

    Built foundations in long-term tracking, 3D/4D reconstruction, and scene decomposition.

  • Now

    Working on camera-controlled human motion video generation and video world models for robot dexterous manipulation.

  • Next

    Unifying these threads into perception-action models of interactive humans and dynamic scenes.

3D/4D Scene Representation Human-Centric Video Generation Dynamic Visual Perception Embodied World Models

Selected Publications

* equal contribution, † corresponding author

ViDS teaser showing identity-preserving portrait animation driven by 3D face normal maps
Human-Centric Video Generation
ViDS: Video Diffusion Shader using 3D Face Tracking
Preprint, 2026
arXiv Project website

3D face tracking-conditioned video diffusion for expressive, identity-preserving portrait animation from a single image, with autoregressive sampling for longer videos. On VFHQ, ViDS ranked first on 8 of 13 reported metrics.

CSG-Fusion teaser image
3D/4D Scene Representation
CSG-Fusion: Consistent Sparse-View Gaussian Splatting via Matching-based Fusion
ICCV Workshop E2E3D, 2025Best Paper Award
Poster Paper

Matching-based fusion of sparse-view pointmaps into compact, cross-view-consistent 3D Gaussians. At 90% ScanNet++ overlap, it improved PSNR by 2.8 dB over Splatt3R while using approximately 124K fewer Gaussians.

LiteTracker teaser image
Dynamic Visual Perception
LiteTracker: Leveraging Temporal Causality for Accurate Low-latency Tissue Tracking
MICCAI, 2025
arXiv Paper Video GitHub

Causal temporal feature reuse with prior-motion initialization for accurate, low-latency online tissue tracking. It ran approximately 7× faster than its predecessor and 2× faster than prior state of the art, reaching 29.67 ms P95 for 1,024 points.

RE0 teaser image
Dynamic Visual Perception
RE0: Recognize Everything with 3D Zero-shot Instance Segmentation
ICRA, 2025
Project website GitHub

Training-free 3D zero-shot instance segmentation from multi-view masks and CLIP semantics.

Experiences

Agile Robots SE logo
Agile WRD logo
Embodied World Models
Video World Model for Robot Dexterous ManipulationApr 2026 - Now
Research Internship
  • Developing a cross-embodiment video generation method that translates egocentric human demonstrations into robot-domain videos for downstream policy learning.
Mentors
Mahdi Mustapha HamadAgile Robots SE / WRD Group
TUM Visual Computing Lab logo
Human-Centric Video Generation
Human Motion Video DiffusionMarch 2026 - Now
Master's Thesis
  • Developing a camera-controlled video diffusion model for controllable synthesis of human motion and scene interactions across changing viewpoints.
Mentors
TUM Visual Computing Lab logo
Human-Centric Video Generation
Human Head Avatar AnimationApril 2025 - March 2026
Research Internship
  • Led the development of ViDS, an identity-preserving video diffusion method for long-form portrait animation.
  • ViDS ranked first on 8 of 13 VFHQ metrics, improving reenactment quality and identity preservation.
Mentors
ImFusion logo
TUM CAMP logo
Dynamic Visual Perception
Dense Point TrackingAug 2024 - April 2025
Research Internship
  • Implemented LiteTracker’s online inference and EMA-flow initialization, and conducted low-latency tracking experiments.
  • LiteTracker remained competitive on STIR and SuPer while running ~7× faster than its predecessor and 2× faster than prior state of the art.
University of Oxford logo
Technical University of Munich logo
TUM DI Lab logo
3D/4D Scene Representation
3D Scene DecompositionFeb 2024 - Aug 2025
Guided Research
  • Designed and evaluated CSG-Fusion; received Best Paper at ICCV Workshop E2E3D.
  • Improved ScanNet++ PSNR by 2.8 dB over Splatt3R at 90% overlap with ~124K fewer Gaussians, and demonstrated zero-shot generalization on DTU.
Zhejiang University logo
3D/4D Scene Representation
Large Scale 3D Scene ReconstructionJuly 2023 - Sep 2023
Research Assistant
  • Contributed to the development and experimental evaluation of a large-scale 3D scene reconstruction pipeline.
Mentors
Prof. Yiyi LiaoZhejiang University

Thesis

Thesis reconstruction pipeline diagram
3D/4D Scene Representation
Endoscopic Scene Reconstruction with 4D Half Gaussian Splatting
2025
Master's Thesis

Developed a 4D Half-Gaussian splatting pipeline for deformable stereo endoscopic reconstruction with depth-prior initialization, HexPlane spatiotemporal deformation, and edge-aware depth regularization. Achieved 38.1 PSNR on EndoNeRF versus prior endoscopic GS/NeRF baselines; also evaluated on SCARED.

Technical Report

Cover of the Object-Centric 3D Reconstruction and Decomposition technical report
3D/4D Scene Representation
Object-Centric 3D Reconstruction and Decomposition
2025
TUM DI Lab Report

A TUM DI Lab report on object-centric 3D reconstruction and decomposition with 3D Gaussian Splatting.

Education

Technical University of Munich logo

M.Sc. Electrical Engineering and Information Technology

Technical University of Munich2023 – Now

M.Sc. Electrical Engineering and Information Technology

Double-degree program with Tongji University (Tongji M.Sc. awarded 2025).
Thesis: camera-controlled human motion video diffusion at the Visual Computing Group.

Tongji University logo

M.Sc. Computer Science

Tongji University2021 – 2025

M.Sc. Computer Science

Thesis: endoscopic scene reconstruction with 4D half-Gaussian splatting.

Nanjing Tech University logo

B.Sc. Information and Computing Science (Embedded Software)

Nanjing Tech University2017 – 2021

B.Sc. Information and Computing Science (Embedded Software)

A computing major within the Department of Mathematics.

Selected Awards

2023 - 2024Munich, Germany
Deutscher Akademischer Austauschdienst (DAAD) Scholarship
Recognition
2019Nanjing, China
National Encouragement Scholarship
Recognition

Projects

InfraLens slogan banner
InfraLens
May 2026

AI Infrastructure Handbook

A static handbook for understanding how modern AI systems train, serve, generate, route, compress, and fail.

OpenUserStudyKit slogan banner
OpenUserStudyKit
March 2026

Reusable User Study Infrastructure

An open-source toolkit for building reusable user study questionnaires and experiment workflows.

LiteAvatar WASM slogan banner
LiteAvatar - WASM Version
Jan 2026

2D Audio-driven Human Avatar Animation

A lightweight audio-driven 2D avatar solution that runs entirely in the browser using WASM based on Lite-avatar. No backend server required.

Blog

Thoughts on research, 3D, video generation, and the occasional in-between.

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