# Optical image encryption with high efficiency based on variable-distance ghost imaging

> Research article (Optik, 2021) · cited 12× · AI/ML

**Wikidata**: [openalex:W4200127363](https://www.wikidata.org/wiki/openalex:W4200127363)  
**Source**: https://4ort.xyz/entity/optical-image-encryption-with-high-efficiency-based-on-variable-distance-ghost-imaging