# Improved ORB Algorithm Using Three-Patch Method and Local Gray Difference

> Research article (Sensors, 2020) · cited 28× · AI/ML

**Wikidata**: [openalex:W3005539868](https://www.wikidata.org/wiki/openalex:W3005539868)  
**Source**: https://4ort.xyz/entity/improved-orb-algorithm-using-three-patch-method-and-local-gray-difference