RTV4HCI: A Historical Overview -- Real-Time Algorithms: From Signal Processing to Computer Vision -- Advances in RTV4HCI -- Recognition of Isolated Fingerspelling Gestures Using Depth Edges -- Appearance-Based Real-Time Understanding of Gestures Using Projected Euler Angles -- Flocks of Features for Tracking Articulated Objects -- Static Hand Posture Recognition Based on Okapi-Chamfer Matching …