[ICLR 2026]
EgoBrain: Synergizing Minds and Eyes For Human Action Understanding

東京大学 The Univerisity of Tokyo X 微軟亞洲研究院 Microsoft Research Asia

Nie Lin · Yansen Wang · Dongqi Han · Weibang Jiang · Jingyuan Li · Ryosuke Furuta · Yoichi Sato^* · Dongsheng Li^* · *(Co-corresponding authors)^*

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This is the official dataset repository of our ICLR 2026 paper "EgoBrain: Synergizing Minds and Eyes For Human Action Understanding". Hope to share our work in Rio de Janeiro, Brazil 🇧🇷, April, 2026～!!

Nie (Elon) Lin, Yansen Wang, Dongqi Han, Weibang Jiang, Jingyuan Li, Ryosuke Furuta, Yoichi Sato*, Dongsheng Li* (*co-corresponding authors). "EgoBrain: Synergizing Minds and Eyes For Human Action Understanding", ICLR 2026.

📢 News

• [2026-02-09]: Released the IMU portion of the EgoBrain dataset (25.4 GB).
• [2026-02-08]: Released the EEG portion of the EgoBrain dataset (13.9 GB).
• [2026-02-01]: Created the Hugging Face repository for ut-vision/EgoBrain.
• [2026-01-26]: 🎉 EgoBrain has been accepted to ICLR 2026! See you in Brazil 🇧🇷!

📂 Dataset Structure

EgoBrain/
├── assets/
├── P0001/
│   ├── EmoTiv_FLEX_2_Gel/
│   │   └── Phase_2/
│   │       ├── *.edf
│   │       ├── *.md.edf
│   │       ├── *_intervalMarker.csv
│   │       ├── *_survey.csv
│   │       └── *.json
│   ├── GoPro_HERO12_Ego/
│   │       ├── GX*.MP4
│   │       ├── GX*.MP4
│   │       ├── ...
│   │       └── GX*.MP4
│   └── WitMotion_WT9011DCL_BT50/
│   │       ├── *.txt
│   │       ├── WT901BLE67(...).wplay
│   │       ├── WT901BLE67(...).wplay
│   │       ├── WT901BLE67(...).wplay
│   │       └── WT901BLE67(...).wplay
├── P0002/
├── P0003/
├── ...
└── P0040/
└── README.md/

🌟 Acknowledgement

We sincerely thank all participants (P0001~P0040) who contributed their time and effort to the data collection process.

This project was initiated and developed during Nie Lin’s research internship at Microsoft Research Asia (MSRA), and later continued at the Institute of Industrial Science (IIS), The University of Tokyo. We thank all collaborators and mentors at MSRA and IIS for their valuable guidance and support.

We also acknowledge the support from our advisors, collaborators, and the community.

📜 License

The EgoBrain dataset is released under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.

Access to the dataset is provided through a gated repository on Hugging Face. Users must request access and agree to the dataset usage terms.

By using this dataset, you agree to:

• Use the dataset only for non-commercial research purposes
• Not redistribute the raw data
• Not attempt to identify participants
• Comply with applicable ethical and data protection regulations

If you have questions regarding licensing or usage, please contact the maintainers.

License details: https://creativecommons.org/licenses/by-nc/4.0/