# Urban 3D challenge: building footprint detection using orthorectified imagery and digital surface models from commercial satellites

> Research article (Geospatial Informatics, Motion Imagery, and Network Analytics VIII, 2018) · cited 14× · AI/ML

**Wikidata**: [openalex:W2800365321](https://www.wikidata.org/wiki/openalex:W2800365321)  
**Source**: https://4ort.xyz/entity/urban-3d-challenge-building-footprint-detection-using-orthorectified-imagery-and-digital-surface-models-from-commercial-