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--- |
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dataset_info: |
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features: |
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- name: image_path |
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|
dtype: string |
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|
- name: file_name |
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|
dtype: string |
|
|
- name: image_id |
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|
dtype: int64 |
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|
- name: annotation_id |
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|
dtype: int64 |
|
|
- name: category_id |
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|
dtype: int64 |
|
|
- name: category_name |
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|
dtype: string |
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|
- name: keypoints |
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list: float64 |
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|
- name: bbox |
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list: float64 |
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|
- name: iscrowd |
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|
dtype: int64 |
|
|
- name: area |
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|
dtype: float64 |
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|
splits: |
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- name: train |
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|
num_bytes: 84650208 |
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|
num_examples: 157298 |
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|
- name: validation |
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|
num_bytes: 10581683 |
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|
num_examples: 19663 |
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|
- name: test |
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|
num_bytes: 10580603 |
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|
num_examples: 19661 |
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|
download_size: 71179531 |
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dataset_size: 105812494 |
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configs: |
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- config_name: default |
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data_files: |
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- split: train |
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path: data/train-* |
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- split: validation |
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path: data/validation-* |
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- split: test |
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path: data/test-* |
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--- |
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# Brazilian Jiu-Jitsu (BJJ) Positions Dataset |
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## Overview |
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This dataset contains annotated images for **Brazilian Jiu-Jitsu (BJJ) positions** such as guard, mount, side control, turtle, takedown, and standing. |
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Each annotation provides **category labels**, **bounding boxes**, and **keypoints** in COCO-style format. |
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The dataset has been pre-split into: |
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- **train** (80%) |
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- **validation** (10%) |
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- **test** (10%) |
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Splits were performed **per-category by percentage** (so each class is represented proportionally in all splits). |
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--- |
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## Data Format |
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Each sample contains the following fields: |
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- `image_path`: Local path to the image (may not be valid on Hub, provided for reference). |
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- `file_name`: File name of the image. |
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- `image_id`: Unique image identifier. |
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- `annotation_id`: Unique annotation identifier. |
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- `category_id`: Integer ID for the BJJ position. |
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- `category_name`: Human-readable label (e.g. `"mount1"`, `"closed_guard2"`, `"standing"`). |
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- `keypoints`: 17 keypoints `[x, y, v]` (COCO style; `v=0` not labeled, `1` labeled but not visible, `2` visible). |
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- `bbox`: `[x, y, w, h]` bounding box. |
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- `iscrowd`: Standard COCO flag. |
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- `area`: Area of the bounding box. |
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- `image_url` *(optional)*: If provided, a URL for downloading the image. |
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--- |
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## Statistics |
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Approximate distribution (train/val/test combined): |
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- Total samples: ~196k |
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- Number of classes: 18 (BJJ positions) |
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- Example classes: |
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- `standing` |
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- `mount1`, `mount2` |
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- `closed_guard1`, `closed_guard2` |
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- `turtle1`, `turtle2` |
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- `5050_guard` |
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- `side_control1`, `side_control2` |
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- `open_guard1`, `open_guard2` |
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- `takedown1`, `takedown2` |
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- `half_guard1`, `half_guard2` |
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- `back1`, `back2` |
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--- |
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