# Improved PPVO-based high-fidelity reversible data hiding

> Research article (Signal Processing, 2019) · cited 58× · AI/ML

**Wikidata**: [openalex:W2969519104](https://www.wikidata.org/wiki/openalex:W2969519104)  
**Source**: https://4ort.xyz/entity/improved-ppvo-based-high-fidelity-reversible-data-hiding