# EXTRACTION OF THE 3D FREE SPACE FROM BUILDING MODELS FOR INDOORNAVIGATION

> Research article (ISPRS annals of the photogrammetry, remote sensing and spatial information sciences, 2016) · cited 22× · AI/ML

**Wikidata**: [openalex:W2529426073](https://www.wikidata.org/wiki/openalex:W2529426073)  
**Source**: https://4ort.xyz/entity/extraction-of-the-3d-free-space-from-building-models-for-indoornavigation