# Ground Control Point-Free Unmanned Aerial Vehicle-Based Photogrammetry for Volume Estimation of Stockpiles Carried on Barges

> Research article (Sensors, 2019) · cited 32× · AI/ML

**Wikidata**: [openalex:W2968516734](https://www.wikidata.org/wiki/openalex:W2968516734)  
**Source**: https://4ort.xyz/entity/ground-control-point-free-unmanned-aerial-vehicle-based-photogrammetry-for-volume-estimation-of-stockpiles-carried-on-ba