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AtticusZeller/README.md

Hi there, I'm Atticus Zeller (周宙) 🤖

Embodied AI Researcher & VLA Algorithm Engineer

Blog / DocsEmailORCID


I am currently a Master's student in Artificial Intelligence at Shanghai Normal University. My work focuses on real-world Vision-Language-Action (VLA) systems and reinforcement-learning post-training for robotic manipulation. I build real-world pipelines from teleoperation and multi-camera data collection to policy fine-tuning, server-client deployment, and fixed-protocol evaluation. I also study how rollout, failure-recovery, and human-intervention experience can be converted into policy-update signals.

🔭 Current Focus

  • Real-world VLA pipelines: Teleoperation, multi-camera episode collection, SFT / LoRA / full-parameter fine-tuning, and policy server-client deployment.
  • VLA post-training: Reproducing and comparing noise-space steering, advantage-conditioned policy learning, online data distillation, and residual actor-critic methods.
  • Evaluation & data flywheel: Tracking revisions, configurations, logs, checkpoints, and fixed evaluation protocols across LIBERO, MetaWorld, ManiSkill, and real robots.

🛠️ Tech Stack

  • VLA Models & Data: LeRobot | π0.5 | GR00T N1.7 | SmolVLA | PEFT
  • Robotics & Deployment: Unitree G1 | SOARM-101 | PICO / XR | LinkerHand L10 | RealSense | ROS / ROS2 | ZMQ | Action Chunking
  • RL & Simulation: SAC | Residual Actor-Critic | LIBERO | MetaWorld | ManiSkill | Ray
  • Deep Learning & Engineering: Python | PyTorch | Docker | Linux | Git | W&B
  • 3D Vision: 3D Gaussian Splatting | Camera Localization

📦 Selected Open Source & Research

  • 🧪 VLA Post-training Experiments
    • Reproductions of DSRL, RECAP, STEAM, FlowDAgger, and RL Token with tracked configurations, checkpoints, evaluation results, and explicit protocol boundaries.
  • 🦾 Real-world VLA Systems
    • Built teleoperation, multi-camera data, training, and deployment pipelines for Unitree G1 + GR00T N1.7 and a dual-arm robot + π0.5; completed 20/20 in a fixed-scene G1 demo protocol and 18/20 full-task trials on the dual-arm task.
  • 🤖 SOARM-101 × SmolVLA Pick-and-Place
    • Completed task SFT, failure-oriented demonstration supplementation, and a real-world inference loop, reaching 17/20 full-task successes across mixed object-and-target position combinations.
  • 📄 GSplatLoc: Camera Localization via 3D Gaussian Splatting — First Author
    • Formulated camera pose estimation as optimization through differentiable 3DGS rendering; the accompanying GitHub repository has 90+ stars.

"From demonstrations to deployment-time policy improvement."

Pinned Loading

  1. GsplatLoc GsplatLoc Public

    😎 GsplatLoc 🎯: Ultra-Precise Pose Optimization via 3D Gaussian Reprojection 🌟

    Python 94 6

  2. BoostFace BoostFace Public archive

    😎real time fullstack face recognition system

    Python 8 1

  3. Pytorch-Lightning-uv Pytorch-Lightning-uv Public template

    📦 Zero-config Deep Learning template with PyTorch Lightning, UV package manager, W&B tracking, and modern Python tooling 🚀

    Python 4

  4. fastapi_supabase_template fastapi_supabase_template Public template

    👏fastapi deeply integrates with supabase,auth,curd postgresql,file upload ,etc , all in one😎,inspired by full stack fastapi postgresql

    Python 351 38

  5. IsaacLab-uv IsaacLab-uv Public template

    🚀 UV package manager for issac sim and issaclab

    Python 5 1

  6. lerobot lerobot Public

    Forked from huggingface/lerobot

    🤗 LeRobot: Making AI for Robotics more accessible with end-to-end learning

    Python