Update README.md

README.md

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-## Overall
-This is the dataset for [SeeU: Seeing the Unseen World via 4D Dynamics-aware Generation](https://yuyuanspace.com/SeeU/)
-
-## Dataset Structure
-
-- `SeeU45_train/`  
-  Provides the 2D frames used as model inputs during training.
-
-- `SeeU45_GT/`  
-  Contains the full scene ground-truth frame sequences.
-
-- `SeeU45_GT/sample_frame.txt`  
-  Specifies which frames are sampled for training. It also records:
-  - the original scene/video folder names,
-  - sampled frame indices,
-  - total frame counts (GT length),
-  - and frame numbers corresponding to `SeeU45_train` inputs.
-
-
-license: cc-by-nc-nd-4.0
+---
+{}
+---
+## Overall
+This is the dataset for [SeeU: Seeing the Unseen World via 4D Dynamics-aware Generation](https://yuyuanspace.com/SeeU/).
+
+## Dataset Structure
+
+- `SeeU45_train/`  
+  Provides the 2D frames used as model inputs during training.
+
+- `SeeU45_GT/`  
+  Contains the full scene ground-truth frame sequences.
+
+- `SeeU45_GT/sample_frame.txt`  
+  Specifies which frames are sampled for training. It also records:
+  - the original scene/video folder names,
+  - sampled frame indices,
+  - total frame counts (GT length),
+  - and frame numbers corresponding to `SeeU45_train` inputs.
+
+## Data Sources and Licensing
+
+SeeU45 is constructed from a combination of our own captured scenes and publicly available datasets.  
+Due to licensing restrictions on some third-party datasets, we are not allowed to re-distribute certain videos.  
+As a result, the public release of SeeU45 **omits 5 scenes** that appear in our paper.
+
+The publicly released scenes in SeeU45 are derived from the following sources (in compliance with their respective licenses):
+
+- [TAP-Vid](https://tapvid.github.io/#:~:text=The%20annotations%20of%20TAP-Vid%2C%20as%20well%20as%20the,their%20creators%3B%20see%20the%20DAVIS%20dataset%20for%20details.)
+- [AgiBot](https://huggingface.co/datasets/agibot-world/AgiBotWorld-Alpha)
+- [I2-2000FPS](https://chennuriprateek.github.io/Quanta_Video_Restoration-QUIVER-/)
+
+All original copyrights of these source datasets are retained by their respective authors.
+
+## SeeU45 License
+
+The **SeeU45 dataset** (including our processed frames, splits, and annotations) is released under:
+
+**license: CC BY-NC-ND 4.0** 
+This means:
+
+- ✅ You may use SeeU45 for **non-commercial academic research**.  
+- ✅ You must credit the SeeU paper and dataset when using it.  
+- ❌ You may not use SeeU45 for commercial purposes.