# Vision-Based Mid-Air Unistroke Character Input Using Polar Signatures

> Research article (IEEE Transactions on Human-Machine Systems, 2017) · cited 33× · AI/ML

**Wikidata**: [openalex:W2621076832](https://www.wikidata.org/wiki/openalex:W2621076832)  
**Source**: https://4ort.xyz/entity/vision-based-mid-air-unistroke-character-input-using-polar-signatures