# Automatic numerical focus plane estimation in digital holographic microscopy using calibration beads

> Research article (Applied Optics, 2022) · cited 10× · AI/ML

**Wikidata**: [openalex:W4206334618](https://www.wikidata.org/wiki/openalex:W4206334618)  
**Source**: https://4ort.xyz/entity/automatic-numerical-focus-plane-estimation-in-digital-holographic-microscopy-using-calibration-beads