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forgrabbit/README.md

Fei Xie

3D Vision · Gaussian Splatting · Real-Time Rendering

I'm a graduate student in the Department of Automation at Tsinghua University, interested in 3D reconstruction, dynamic scene representations, and embodied visual perception. My work spans reconstruction algorithms, model compression, real-time rendering, and interactive tools, with a focus on turning research into working systems.

Featured Research · 4DGS Editor · Dynamic Scene Demo

Research

DirectFisheye-GS · CVPR 2026 Highlight

Enabling Native Fisheye Input in Gaussian Splatting with Cross-View Joint Optimization

Zhengxian Yang*, Fei Xie*, et al. · * Equal contribution

DirectFisheye-GS brings native fisheye inputs to 3D Gaussian Splatting for wide-field-of-view reconstruction. Cross-view joint optimization strengthens geometric and photometric consistency while reducing information loss from undistortion and artifacts near image boundaries.

My contributions: core algorithm development, implementation of the complete training pipeline, literature review, and manuscript writing.

Project Page · Paper · CVPR Proceedings · Code

Selected Projects

Project Contributions Stack & Links
SuperSplat 4D Extended PlayCanvas SuperSplat with dynamic Gaussian loading, playback, editing, and export; implemented .sog4d compression and browser interaction. TypeScript · PlayCanvas · Python · 4D Source · Live Editor
THUAI8 Led game framework and technical design; contributed to frontend, backend, and SDK development for agent matches and competition operations. A collaborative team project. C# · Unity · C++ / Python SDK · Team Repository
Gaussian Sorting Profiling Added timing instrumentation across the main thread and Gaussian sorting worker in a PlayCanvas Engine development fork; fixed handling of empty sort mappings. JavaScript · PlayCanvas · Web Workers · Changes

Earlier research prototype: Gaussian Splatting Depth, a depth-rendering extension of the original 3DGS pipeline.

Experience

  • 4DGS Algorithm R&D Intern, JD.com XR Team · Jun 2025 – Sep 2026. Worked on dynamic 3D reconstruction, long-sequence training, model compression, and rendering acceleration; developed browser-based editing and visualization tools.
  • Head of the Software Division, Automation Students' Science and Technology Association, Tsinghua University. Coordinated software projects and technical collaboration, contributing to competition platforms, interactive games, and website development.

Technical Focus

  • 3D vision: native fisheye reconstruction, cross-view optimization, and 3D/4D Gaussian Splatting.
  • Modeling & rendering: Python, PyTorch, and CUDA; model compression, dynamic scene representations, and real-time rendering.
  • Interactive systems: TypeScript, PlayCanvas, and Unity / C#; browser tools, 3D visualization, and collaborative development.

Popular repositories Loading

  1. supersplat4d supersplat4d Public

    Forked from playcanvas/supersplat

    4D Gaussian Splatting editor and compression tools based on PlayCanvas SuperSplat. Dynamic playback, editing, and .sog4d export; source: splat4d branch.

    TypeScript 3 2

  2. Summer2024 Summer2024 Public

    C 1 2

  3. Pano2Pinhole Pano2Pinhole Public

    Forked from yuancaimaiyi/Pano2Pinhole

    Convert panoramic image to pinhole image. Extract from OpenMVG.

    C++ 1

  4. forgrabbit forgrabbit Public

    Fei Xie | 3D vision, Gaussian Splatting, and real-time rendering.

    1

  5. git-practice-temp git-practice-temp Public

    Forked from FrankLiu2000/git-practice-temp-1

    assignment4-xf

  6. EDCViewer3D EDCViewer3D Public

    A desktop app offering inspection and control of Electronic Design Competition and virtual scene simulation

    ShaderLab