# Hand-free natural user interface for VR HMD with IR based facial gesture tracking sensor

> Research article (Proceedings of the 23rd ACM Symposium on Virtual Reality Software and Technology, 2017) · cited 14× · AI/ML

**Wikidata**: [openalex:W2765881716](https://www.wikidata.org/wiki/openalex:W2765881716)  
**Source**: https://4ort.xyz/entity/hand-free-natural-user-interface-for-vr-hmd-with-ir-based-facial-gesture-tracking-sensor