# Opportunities for activity recognition using ultrasound doppler sensing on unmodified mobile phones

> Research article (Proceedings of the 2nd international Workshop on Sensor-based Activity Recognition and Interaction, 2015) · cited 16× · AI/ML

**Wikidata**: [openalex:W2074114466](https://www.wikidata.org/wiki/openalex:W2074114466)  
**Source**: https://4ort.xyz/entity/opportunities-for-activity-recognition-using-ultrasound-doppler-sensing-on-unmodified-mobile-phones