# Automatic DTM extraction from airborne LiDAR based on expectation-maximization

> Research article (Optics & Laser Technology, 2018) · cited 45× · AI/ML

**Wikidata**: [openalex:W2900119277](https://www.wikidata.org/wiki/openalex:W2900119277)  
**Source**: https://4ort.xyz/entity/automatic-dtm-extraction-from-airborne-lidar-based-on-expectation-maximization