| --- |
| license: apache-2.0 |
| task_categories: |
| - robotics |
| tags: |
| - robotics |
| - lerobot |
| - tsfile |
| - format:tsfile |
| - timeseries |
| pretty_name: Demo2 Frames Grab |
| size_categories: |
| - 10K<n<100K |
| configs: |
| - config_name: default |
| data_files: |
| - split: train |
| path: data/demo2_frames_grab.tsfile |
| --- |
| |
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| # Demo2 Frames Grab (TsFile) |
|
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| Apache TsFile version of [`1g0rrr/demo2_frames_grab`](https://huggingface.co/datasets/1g0rrr/demo2_frames_grab). |
|
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| ## Overview |
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| This LeRobot v2.1 dataset records the task “Peel off protective film from adhesive tape.” It uses the `sam_two` robot type and provides numeric robot action and state observations for each frame. |
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| - **Scale:** 64 train episodes, 28,432 frames, one task, sampled at 30 fps. |
| - **Source videos:** the original dataset has laptop, side, and phone camera streams. Videos are not included in this TsFile dataset; see the [source videos](https://huggingface.co/datasets/1g0rrr/demo2_frames_grab/tree/main/videos). |
|
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| ## Schema (TsFile structure) |
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| - **Time** (INT64, milliseconds) — `round(timestamp * 1000)` for each source frame; time restarts for every episode. |
| - **episode_index**, **task_index** (TAG) — source episode and task dimensions; query a single episode with `WHERE episode_index=0`. |
| - **frame_index**, **sample_index** (FIELD, INT64) — source frame index and source `index` (renamed to `sample_index`). |
| - **action_0** … **action_6** (FIELD, FLOAT) — flattened source `action[7]` vector. |
| - **observation_state_0** … **observation_state_6** (FIELD, FLOAT) — flattened source `observation.state[7]` vector. |
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| The source `timestamp` column is represented by `Time` and is not retained as a duplicate field. Source vectors are flattened by element index, and their order is preserved. |
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| ## Usage |
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| Read `data/demo2_frames_grab.tsfile` with the Apache TsFile Java or Python SDK. |
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| ## Source & license |
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| - Original dataset: https://huggingface.co/datasets/1g0rrr/demo2_frames_grab |
| - Author / publisher: 1g0rrr |
| - Source format: LeRobot v2.1 |
| - License: Apache-2.0 |
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