# Crack Detection in Concrete Tunnels Using a Gabor Filter Invariant to Rotation

> Research article (Sensors, 2017) · cited 86× · AI/ML

**Wikidata**: [openalex:W2737850527](https://www.wikidata.org/wiki/openalex:W2737850527)  
**Source**: https://4ort.xyz/entity/crack-detection-in-concrete-tunnels-using-a-gabor-filter-invariant-to-rotation