Update README.md

README.md

@@ -50,6 +50,16 @@ Dronnix specializes in **drone mapping, 3D modeling, digital twins, and geospati
 
 [![GitHub](https://img.shields.io/badge/GitHub-GeoSegStudio-black?style=flat-square&logo=github)](https://github.com/dronnix-io/GeoSegStudio)
 
+### 🗂️ Drone Building Extraction Dataset — Calgary
+> High-resolution drone imagery with manually annotated building polygons for binary semantic segmentation
+
+- 4-band GeoTIFF orthomosaics (RGB + Alpha) captured with DJI Matrice 4E
+- Manually annotated building footprints (QGIS) — Calgary, Alberta, Canada
+- Ready to use directly with GeoSeg Studio — no pre-processing required
+- License: CC BY 4.0
+
+[![Hugging Face](https://img.shields.io/badge/Dataset-drone--building--extraction-yellow?style=flat-square&logo=huggingface)](https://huggingface.co/datasets/dronnix-io/drone-building-extraction)
+
 ---
 
 ## 📬 Contact
@@ -61,5 +71,3 @@ For inquiries and support: salar@dronnix.com
 <div align="center">
 <sub>Built with ❤️ by Dronnix</sub>
 </div>
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