# Online micro defects detection for ductile cast iron pipes based on twin light photometric stereo

> Research article (Case Studies in Construction Materials, 2023) · cited 11× · AI/ML

**Wikidata**: [openalex:W4387533724](https://www.wikidata.org/wiki/openalex:W4387533724)  
**Source**: https://4ort.xyz/entity/online-micro-defects-detection-for-ductile-cast-iron-pipes-based-on-twin-light-photometric-stereo