Hover detection using active acoustic sensing

Abstract

In this paper, we present a technique for hover and touch detection using Active Acoustic Sensing. This sensing technique analyzes the resonant property of the target object and the air around it. To verify whether the detection technique works, we conduct an experiment to discriminate between hovering the hand over the piezoelectric elements placed on a target object and touching the same object. As a result of our experiment, hovering was detected with 96.7% accuracy and touching was detected with 100% accuracy.