# A Generic Pixel Pitch Calibration Method for Fundus Camera via Automated ROI Extraction

> Research article (Sensors, 2022) · cited 40× · AI/ML

**Wikidata**: [openalex:W4308581329](https://www.wikidata.org/wiki/openalex:W4308581329)  
**Source**: https://4ort.xyz/entity/a-generic-pixel-pitch-calibration-method-for-fundus-camera-via-automated-roi-extraction