# A Human-Robot Interaction System Calculating Visual Focus of Human’s Attention Level

> Research article (IEEE Access, 2021) · cited 45× · AI/ML

**Wikidata**: [openalex:W3175630806](https://www.wikidata.org/wiki/openalex:W3175630806)  
**Source**: https://4ort.xyz/entity/a-human-robot-interaction-system-calculating-visual-focus-of-humans-attention-level