# Watchers on the Wall: Passive Visible Light-Based Positioning and Tracking With Embedded Light-Sensors on the Wall

> Research article (IEEE Transactions on Instrumentation and Measurement, 2019) · cited 49× · AI/ML

**Wikidata**: [openalex:W2985752695](https://www.wikidata.org/wiki/openalex:W2985752695)  
**Source**: https://4ort.xyz/entity/watchers-on-the-wall-passive-visible-light-based-positioning-and-tracking-with-embedded-light-sensors-on-the-wall