Speaking in public may be a challenging task in terms of self-control and attention to the concepts to expose and to non-verbal communication. Presentation software, like Microsoft PowerPointTM or OpenOffice, may support the speaker in organizing and controlling the flow of his/her discussion by commanding the slide change. In this paper we describe an approach exploiting the availability of the Microsoft KinectTM advanced game controller to manage a presentation software through a Natural User Interface (NUI). The approach, named Kinect Presenter (KiP), adopts motion capture to recognize body gestures representing interaction metaphors. We perform a preliminary evaluation aiming at assessing the degree of support provided by the proposed interaction approach to the speaker activities. The assessment is based on the combined usage of two techniques: a questionnaire-based survey and an empirical analysis. The context of this study was constituted of Bachelor and PhD students in Computer Science at the University of Salerno, and teachers and employees from the same university. First results were adequate both in terms of satisfaction and performances, also when compared with a wireless mouse-based interaction approach.
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