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README.md

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-license: cc-by-nc-sa-4.0
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+# OccuFly Dataset
+
+A 3D Vision Benchmark for Semantic Scene Completion from the Aerial Perspective. **CVPR 2026 Oral**.
+
+📄 **Paper**: [arXiv:2512.20770](https://arxiv.org/abs/2512.20770)  
+🌐 **Project Page**: [markus-42.github.io/publications/2026/occufly/](https://markus-42.github.io/publications/2026/occufly/)  
+📚 **Full Documentation**: See [https://github.com/markus-42/occufly](https://github.com/markus-42/occufly)
+
+---
+
+## Quick Start
+
+### 1. Install Dependencies
+
+```bash
+pip install huggingface-hub tqdm numpy Pillow
+```
+
+### 2. Download Dataset
+
+Use the download script located in this repository:
+
+```bash
+# Download all scenes
+python download_occufly.py
+
+# Download specific split
+python download_occufly.py --split train
+python download_occufly.py --split validation
+python download_occufly.py --split test
+
+# Download specific scenes (1-9)
+python download_occufly.py --scenes 1 2 3
+
+# Include predicted depth maps
+python download_occufly.py --include_depth_predictions
+python download_occufly.py --split train --include_depth_predictions
+
+# Download only predicted depth maps
+python download_occufly.py --only_depth_predictions
+
+# Custom output directory
+python download_occufly.py --output ./my_data
+```
+
+## Dataset Splits
+
+- **Train**: Scenes 1-5
+- **Validation**: Scenes 6-7  
+- **Test**: Scenes 8-9
+
+Each scene has 3 altitudes: 30m, 40m, 50m
+
+
+## Citation
+
+```bibtex
+@misc{gross2025occufly,
+    title={{OccuFly}: A 3D Vision Benchmark for Semantic Scene Completion from the Aerial Perspective},
+    author={Markus Gross and Sai B. Matha and Aya Fahmy and Rui Song and Daniel Cremers and Henri Meess},
+    year={2025},
+    eprint={2512.20770},
+    archivePrefix={arXiv},
+    primaryClass={cs.CV},
+    url={https://arxiv.org/abs/2512.20770}
+}
+```
+
+## License
+
+This dataset is licensed under the **Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International** (CC BY-NC-SA 4.0) license.
+
+- **You can**: Share and adapt the material for non-commercial purposes
+- **You must**: Give credit, indicate changes, and use the same license for derivative works
+- **You cannot**: Use the material for commercial purposes without permission
+
+For full license details, see [creativecommons.org/licenses/by-nc-sa/4.0/](https://creativecommons.org/licenses/by-nc-sa/4.0/)
+
+## Documentation
+
+For detailed documentation, visit the [https://github.com/markus-42/occufly](https://github.com/markus-42/occufly).