Abstract

To design intuitive, interactive systems in various domains, such as health, entertainment, or smart cities, researchers are exploring touchless interaction. Touchless systems allow individuals to interact without any input device—using freehand gestures in midair. Gesture-elicitation studies focus on generating user-defined interface controls to design touchless systems. Interface controls, however, are composed of primary units called interaction primitives—which remain little explored. For example, what touchless primitives are motor-intuitive and can unconsciously use our pre-existing sensorimotor knowledge (such as visual perception or motor skills)? Drawing on the disciplines of cognitive science and motor behavior, my research aims to understand the perceptual and motor factors in touchless interaction with 2D user interfaces (2D UIs). I then aim to apply this knowledge to design a set of touchless interface controls for large displays. Author Keywords Gesture-based interfaces; novel interaction techniques; touchless interaction; motor-intuitive interaction. ACM Classification Keywords