# Measurement of Rock Joint Surfaces by Using Smartphone Structure from Motion (SfM) Photogrammetry

> Research article (Sensors, 2021) · cited 62× · AI/ML

**Wikidata**: [openalex:W3126928032](https://www.wikidata.org/wiki/openalex:W3126928032)  
**Source**: https://4ort.xyz/entity/measurement-of-rock-joint-surfaces-by-using-smartphone-structure-from-motion-sfm-photogrammetry