# Optical image authentication using spatially variant polarized beam and sparse phase sampling method

> Research article (Optics and Lasers in Engineering, 2019) · cited 23× · AI/ML

**Wikidata**: [openalex:W2968126692](https://www.wikidata.org/wiki/openalex:W2968126692)  
**Source**: https://4ort.xyz/entity/optical-image-authentication-using-spatially-variant-polarized-beam-and-sparse-phase-sampling-method