# Bi-frequency 3D ghost imaging with Haar wavelet transform

> Research article (Optics Express, 2019) · cited 19× · AI/ML

**Wikidata**: [openalex:W2981934332](https://www.wikidata.org/wiki/openalex:W2981934332)  
**Source**: https://4ort.xyz/entity/bi-frequency-3d-ghost-imaging-with-haar-wavelet-transform