Update README.md

README.md

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-license: cc-by-nc-sa-4.0
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+---
+license: cc-by-nc-sa-4.0
+---
+
+## Dataset
+This dataset is a derivative of the [OpenASL dataset](https://github.com/chevalierNoir/OpenASL?tab=readme-ov-file), but contains pose estimations instead of the original RGB videos.  
+Each datapoint has been preprocessed using the [crop_video.py](https://github.com/chevalierNoir/OpenASL/blob/main/prep/crop_video.py) script.  
+Pose keypoints are predicted using [DWPose](https://github.com/IDEA-Research/DWPose?tab=readme-ov-file), and each sample is stored as a pickle file. 
+
+| Field            | Type         | Description                                             |
+|------------------|--------------|---------------------------------------------------------|
+| poses            | list         | List pose data inferred from the video frames           |
+| frames_per_second| float        | Frame rate of the video                                 |
+| video_duration   | float        | Duration of the video in seconds                        |
+| file_stem        | str          | File name stem (without extension)                      |
+| raw_text         | str          | Raw textual description                                 |
+| tokenized_text   | str          | Tokenized version of the raw text                       |
+| split            | str          | Dataset split (e.g., train/val/test)                    |
+| yid              | str          | Youtube video ID                                        |
+| start            | str          | Start timestamp of the Youtube video segment            |
+| end              | str          | End timestamp of the Youtube video segment              |
+
+
+## References
+This dataset was generated using the [OpenASL repository](https://github.com/chevalierNoir/OpenASL?tab=readme-ov-file), but is neither maintained nor endorsed by its original authors.