# Imaging and condition diagnosis of underground sewer liners via active and passive infrared thermography: A case study in Singapore

> Research article (Tunnelling and Underground Space Technology, 2018) · cited 21× · AI/ML

**Wikidata**: [openalex:W2902950425](https://www.wikidata.org/wiki/openalex:W2902950425)  
**Source**: https://4ort.xyz/entity/imaging-and-condition-diagnosis-of-underground-sewer-liners-via-active-and-passive-infrared-thermography-a-case-study-in