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  • Xi'an, Shaanxi
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fankewen/README.md

Pu Pang

Ph.D. Student in Artificial Intelligence Xi'an Jiaotong University & Zhongguancun Academy

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About Me

I am a Ph.D. student in Artificial Intelligence at Xi'an Jiaotong University and Zhongguancun Academy.

My research focuses on computer vision, multimodal fusion, and embodied perception, with a particular interest in building structured scene representations for reconstruction, simulation-to-reality transfer, and robotic manipulation.

I am currently working on Gaussian Splatting-based representations, including transparent surface reconstruction, semantic 2D Gaussian fields, and dynamic 3D Gaussian fields for robot action prediction.


Research & Projects

TSGS: Improving Gaussian Splatting for Transparent Surface Reconstruction via Normal and De-lighting Priors

ACM Multimedia · Second Author

Transparent objects are difficult for 3D Gaussian Splatting because low-opacity Gaussian particles often make depth rendering incorrectly capture the background.

In this work, we improve the depth rasterization process by introducing a sliding-window strategy in the CUDA rendering pipeline. The method searches for local regions with maximum opacity and uses them to recover more reliable transparent surface depth.


Bridging Simulation and Reality: Cross-Domain Transfer with Semantic 2D Gaussian Splatting

Under Submission

Simulation and real-world environments often contain a significant domain gap, which limits the direct deployment of robot policies trained in simulation.

We use semantic 2D Gaussian Splatting as a bridge between the robot and the environment. The constructed semantic 2DGS field provides cross-scene geometric and semantic representations for robot models. During manipulation, the field can be dynamically updated through real-time environmental inputs, enabling more effective sim-to-real transfer while reducing the dependence on real-world robot data.


GaussAct: Robot Manipulation via Dynamic 3D Gaussian Splatting

Ongoing Work

Accurate future scene prediction is important for safe and reliable robotic manipulation.

In this project, we explore a feed-forward dynamic 3D Gaussian field for predicting next-frame scene changes. By incorporating optical-flow priors and rigid-body constraints of robotic arms, we aim to make Gaussian particle motion physically meaningful and directly infer robot actions from particle dynamics.


What I Build

  • Gaussian Splatting for scene representation

    • Transparent surface reconstruction
    • Depth rendering and CUDA rasterization
    • 2D/3D Gaussian scene fields
  • Embodied perception for robotics

    • Dynamic scene prediction
    • Robot manipulation from visual-geometric representations
    • Action inference from Gaussian particle motion
  • Sim-to-real transfer

    • Semantic 2D Gaussian fields
    • Cross-domain geometric representations
    • Real-time environment-aware field updates
  • Multimodal and geometric perception

    • Computer vision
    • Multimodal fusion
    • High-level scene understanding for embodied agents

Experience & Education

Period Role / Degree Institution Focus
2024 — Present Ph.D. Student Xi'an Jiaotong University & Zhongguancun Academy Artificial Intelligence · Embodied Perception · Gaussian Splatting
2022 — 2024 M.S. Xi'an Jiaotong University Artificial Intelligence
2018 — 2022 B.S. Xi'an Jiaotong University Automation

Honors

  • First Prize, Brain-Controlled Robotics Track, Brain-Computer Interface Competition, 2025

Research Keywords

Computer Vision Multimodal Fusion Embodied Perception Gaussian Splatting Robotic Manipulation CUDA Rasterization


Current Focus

I am currently focusing on a compact but connected research direction:

Gaussian-based scene representations for embodied perception and robotic manipulation.

In practice, this means building dynamic, semantic, and physically meaningful representations that can support reconstruction, prediction, sim-to-real transfer, and robot action generation.


GitHub Notes

Some research repositories are being organized before public release.

I prefer to release projects with clear documentation, reproducible instructions, and concrete demos rather than raw experiment code.

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