FEEL-Benchmark / README.md
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README: add P75_bottle, refresh stats (26 trials / 700 eps / 65.8 min)
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---
license: cc-by-4.0
task_categories:
- robotics
tags:
- lerobot
- tactile
- manipulation
- project-aria
- egocentric
size_categories:
- n<1K
---
# FEEL-Benchmark
A multimodal egocentric manipulation dataset combining **Project Aria** smart-glasses recordings (RGB video, eye gaze, hand tracking, IMU) with synchronized **Paxini** tactile-glove force readings. Released in [LeRobot v3.0](https://github.com/huggingface/lerobot) format (GR00T path variant).
## Overview
- **26 trials**, **700 episodes**, **~65.8 min** of segmented manipulation, ~2.0 GB
- **Recording dates**: 2026-01-10, 2026-01-21, 2026-01-28, 2026-04-30, 2026-05-06
- **Camera**: Project Aria RGB (1408×1408, **10 fps**, H.264)
- **Tactile**: bilateral force totals (`action.tactile.left.force_total`, `action.tactile.right.force_total`)
- **Hand pose**: Aria MPS hand tracking (left + right, validity flags, confidence)
- **Gaze**: Aria MPS general eye gaze (yaw/pitch + depth)
- **Mean episode length**: 5.6 s (39,497 frames @ 10 fps)
## Dataset statistics
### By recording date
| Date | Trials | Episodes | Frames | Duration (min) |
|------------|-------:|---------:|-------:|---------------:|
| 2026-01-10 | 3 | 42 | 3,565 | 5.9 |
| 2026-01-21 | 7 | 137 | 11,106 | 18.5 |
| 2026-01-28 | 5 | 132 | 8,481 | 14.1 |
| 2026-04-30 | 2 | 82 | 4,761 | 7.9 |
| 2026-05-06 | 9 | 307 | 11,584 | 19.3 |
| **Total** | **26** | **700** | **39,497** | **65.8** |
### By object category
| Category | Trials | Episodes | Frames | Duration (min) |
|----------|-------:|---------:|-------:|---------------:|
| Bottle | 5 | 237 | 10,811 | 18.0 |
| Jelly | 6 | 115 | 10,232 | 17.1 |
| Sponge | 3 | 107 | 6,548 | 10.9 |
| Water | 4 | 70 | 4,860 | 8.1 |
| Wangzai | 4 | 116 | 4,294 | 7.2 |
| Coke | 2 | 19 | 1,512 | 2.5 |
| Chip | 2 | 36 | 1,240 | 2.1 |
The **Bottle** category includes a fill-level gradient (`Empty_bottle_1`, `P25_bottle`, `P50_bottle`, `P75_bottle`, `Full_bottle_1`) for studying tactile cues of liquid mass and slosh.
## Layout
Datasets are grouped by recording session date. Trial names encode the manipulation outcome where relevant (e.g. `Chip_intact` = potato chip not crushed, `Chip_crushed` = chip crushed during grasp).
```
FeelAuthors/FEEL-Benchmark/
├── 20260110/ Jelly_1, Jelly_2, Jelly_3 (3 trials)
├── 20260121/ Half_coke_2, Half_water_1, Jelly_{5,6,7}, Quarter_coke_0, Quarter_water_2 (7 trials)
├── 20260128/ Half_water_{3,4}, Sponge_{1,2,3} (5 trials)
├── 20260430/ Empty_bottle_1, Full_bottle_1 (2 trials)
└── 20260506/ Chip_intact, Chip_crushed, Empty_Want_Milk, Empty_wz, P25_bottle,
P50_bottle, P75_bottle, Want_Milk, Wz (9 trials)
```
Each `*_lerobot/` directory follows LeRobot v3.0:
```
<trial>_lerobot/
├── meta/
│ ├── info.json # feature schema, fps, episode counts
│ ├── episodes.jsonl # per-episode metadata
│ ├── stats.json
│ └── tasks.jsonl
├── data/chunk-000/episode_NNNNNN.parquet
└── videos/chunk-000/observation.images.main/episode_NNNNNN.mp4
```
## Feature schema
Each row in `episode_*.parquet`:
| Field | dtype | shape | Notes |
|------------------------------------|-------------|-------|----------------------------------|
| `index` | int64 | (1,) | Global frame index |
| `episode_index` | int64 | (1,) | |
| `frame_index` | int64 | (1,) | Per-episode frame index |
| `timestamp` / `timestamp_ns` | float64/int | | Aria device clock |
| `observation.state` | float32 | (7,) | Right-hand pose state |
| `action` | float32 | (2,) | Action vector |
| `status.hands.valid_right` | bool | (1,) | Hand-tracking validity |
| `action.tactile.left.force_total` | float32 | (1,) | Total force, left glove (N) |
| `action.tactile.right.force_total` | float32 | (1,) | Total force, right glove (N) |
| `observation.images.main` | video | 1408×1408×3 | Aria RGB stream |
## Path format note
Each `meta/info.json` declares `"path_format": "groot"`. The `data_path` and `video_path` templates match standard LeRobot v3.0 (`data/chunk-{episode_chunk:03d}/episode_{episode_index:06d}.parquet`), so the dataset is consumable by both stock LeRobot tooling and NVIDIA Isaac GR00T loaders.
## Sensors
- **Project Aria** (RGB, eye-tracking cameras, SLAM cameras, IMUs) with MPS post-processing for gaze + hand tracking
- **Paxini tactile glove** for force feedback (totals exported per side; raw per-taxel data not included in this release)
## Loading
```python
from datasets import load_dataset
ds = load_dataset("FeelAuthors/FEEL-Benchmark",
data_files="20260506/P25_bottle_lerobot/data/chunk-000/*.parquet")
```
Or with LeRobot tooling, point a `LeRobotDataset` at a single trial directory.
## License
[CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).
## Citation
```bibtex
@misc{feel_benchmark_2026,
title = {FEEL-Benchmark: Egocentric Tactile-Visual Manipulation Dataset},
author = {FeelAuthors},
year = {2026},
url = {https://huggingface.co/datasets/FeelAuthors/FEEL-Benchmark}
}
```