README.md

---
license: cc-by-nc-4.0
pretty_name: Eyes, JAPAN MoCap (Raw)
task_categories:
- other
tags:
- motion-capture
- mocap
- human-motion
- animation
- 3d
- c3d
- bvh
- fbx
- vicon
- motion-generation
size_categories:
- 1K<n<10K
language:
- en
modalities:
- 3d
- video
configs:
- config_name: default
  data_files:
  - split: train
    path: metadata.parquet
# ---- Gated access: dataset stays public, download requires accepting terms ----
extra_gated_prompt: >-
  This dataset is released under CC BY-NC 4.0 for non-commercial research and
  educational use only. By requesting access you agree to (1) use it for
  non-commercial purposes only, (2) credit Eyes, JAPAN in any publication or
  derivative work, and (3) not redistribute the raw data outside these terms.
  For commercial licensing, contact info@nowhere.co.jp.
extra_gated_fields:
  Name: text
  Affiliation: text
  Intended use: text
  I will use this dataset for non-commercial purposes only: checkbox
---

# Eyes, JAPAN MoCap Dataset (Raw)

Professional optical motion-capture data, **fully owned and copyrighted by
Eyes, JAPAN**, released free for non-commercial research and education.
Commercial use requires a separate paid license.

**4,139 clips / 10,255 files**, **45 action categories**, **57 subjects**,
delivered in multiple industry-standard formats.

- **License:** [CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/) — academic/non-commercial use is free.
- **Commercial license:** purchase required — contact `info@nowhere.co.jp`.
- **SMPL-X version:** a processed version of this data fitted to SMPL-X body models is available at [`eyesjapan/eyesjapan-mocap-smplx`](https://huggingface.co/datasets/eyesjapan/eyesjapan-mocap-smplx) (different license — see that card).

## Dataset structure

```
├── README.md
├── metadata_clips.csv        # 1 row per clip (recommended entry point)
├── metadata_files.csv        # 1 row per file
└── data/
    ├── free/                 # 2,960 clips
    │   └── <category>/<clip_id>/  e.g. free-accident-dodge-azumi/
    │       ├── 00003-....bip
    │       ├── 00004-....bvh
    │       ├── 00005-....c3d
    │       └── 00006-....fbx
    └── premium/              # 1,179 clips
        └── <category>/<clip_id>/...
```

Every file has a unique zero-padded 5-digit ID; names follow
`tier-category-action-subject`.

> Cleanup before upload: remove the stray `...catwalk-NA.mnm` and
> `...hiphop-combo3-umeda.db` (a marker-name-map and a Thumbs.db-type file).

### File formats

| Ext | Count | Description |
|---|---|---|
| `.c3d` | 3,963 | Raw optical marker data (biomechanics standard) |
| `.bip` | 1,604 | 3ds Max Character Studio Biped motion |
| `.csm` | 1,067 | Character Studio marker file |
| `.v` / `.vsk` | 886 / 255 | Vicon raw capture / skeleton calibration |
| `.bvh` | 788 | Skeletal animation (hierarchy + rotations) |
| `.fbx` | 690 | Autodesk FBX skeletal animation |
| `.mov` / `.m4v` | 886 / 116 | Reference video of the capture session |

<!-- TODO: frame rate (e.g. 120 fps), marker set, coordinate system & units,
whether root motion is included. -->

### metadata_clips.csv columns

`clip_id`, `tier` (free/premium), `category` (45 categories), `action`
(1,624 labels), `subject` (57 subjects), `formats` (e.g. `bip,bvh,c3d,fbx`),
`n_files`, `has_video`.

## Usage

```python
from datasets import load_dataset
from huggingface_hub import hf_hub_download

index = load_dataset("eyesjapan/eyesjapan-mocap", split="train")
walks = index.filter(lambda x: x["category"] == "walk" and "bvh" in x["formats"])

path = hf_hub_download(
    repo_id="eyesjapan/eyesjapan-mocap", repo_type="dataset",
    filename="data/free/accident/free-accident-dodge-azumi/00004-free-accident-dodge-azumi.bvh",
)
```

## Data collection & consent

<!-- TODO: capture hardware/software, studio, subject recruitment. Reference
videos show identifiable performers — confirm all subjects consented to public
research release, or exclude the .mov/.m4v files. -->

## Licensing

- ✅ Academic research, education, personal projects — free under CC BY-NC 4.0
- ✅ Modification & redistribution — with attribution, same non-commercial terms
- ❌ Any commercial use without a separate license from Eyes, JAPAN
- Commercial licensing: `info@nowhere.co.jp`

## Citation

```bibtex
@misc{eyesjapan_mocap_2026,
  title  = {Eyes, JAPAN MoCap Dataset (Raw)},
  author = {{Eyes, JAPAN}},
  year   = {2026},
  url    = {https://huggingface.co/datasets/eyesjapan/eyesjapan-mocap}
}
```

## Takedown

If any content infringes your rights, contact `info@nowhere.co.jp` and we
will address it promptly.