OOH Advertising Audience Analytics AuxD is a low-complexity and secure solution for Out-of-Home (OOH) advertising analytics acquisition and interpretation. It combines face detection technology embedded in a low-power IoT-enabled camera with a web-based analytics platform. Paired with a precise market, AuxD delivers advanced demographic and emotion recognition analysis in a context-aware physical sense to provide new insights in OOH advertising engagement and audience impressions.