# Efficient phase retrieval of two-directional phase-shifting fringe patterns using geometric constraints of deflectometry

> Research article (Optics Express, 2019) · cited 30× · AI/ML

**Wikidata**: [openalex:W2918544028](https://www.wikidata.org/wiki/openalex:W2918544028)  
**Source**: https://4ort.xyz/entity/efficient-phase-retrieval-of-two-directional-phase-shifting-fringe-patterns-using-geometric-constraints-of-deflectometry