# Using Telephoto Lens to Characterize Rock Surface Roughness in SfM Models

> Research article (Rock Mechanics and Rock Engineering, 2021) · cited 17× · AI/ML

**Wikidata**: [openalex:W3128306616](https://www.wikidata.org/wiki/openalex:W3128306616)  
**Source**: https://4ort.xyz/entity/using-telephoto-lens-to-characterize-rock-surface-roughness-in-sfm-models