Hand Gestures Recognition Using Radar Sensors for Human-Computer-Interaction: A Review

Human–Computer Interfaces (HCI) deals with the study of interface between humans and computers. The use radar other RF sensors to develop HCI based on Hand Gesture Recognition (HGR) has gained increasing attention over past decade. Today, devices have built-in radars for recognizing categorizing hand movements. In this article, we present first ever review related HGR using sensors. We available techniques multi-domain gestures data representation different signal processing deep-learning-based algorithms. classify used as pulsed continuous-wave radars, both hardware algorithmic details each category is presented in detail. Quantitative qualitative analysis ongoing trends radar-based HCI, algorithms also presented. At end, developed applications gesture-recognition through are discussed. Limitations, future aspects research directions field