AN ENVIRONMENT FOR THE SPECIFICATION AND RECOGNITION OF DYNAMIC GESTURES

Novel 3-D input devices are taking the place of traditional 2-D input devices in current 3-D graphical user interfaces. Among them, hand-input devices seem intuitive and powerful for performing tasks in 3-D environments. They offer the possibility to interact by means of hand gestures, i.e. in a natural way, close to human habits of interacting with the surrounding world. This paper describes a system supporting hand gestures for interacting with 3-D user interfaces. The system provides a visual programming environment for the design of gesture languages, defined as a collection of hand gestures. Moreover, a system for interpreting a gesture language, where gestures are performed by a user wearing a hand-input device, and for providing graphical feedback during the interaction, is presented.