User-centered gesture development in TV viewing environment

Recent advances in interaction technologies make it possible for people to use freehand gestures in such application domains as virtual reality, augmented reality, ubiquitous computing, and smart rooms. While some applications and systems have been developed to support gesture-based interaction, it is unclear what design processes these systems have adopted. Considering the diversity of freehand gestures and the lack of design guidance on gesture-based interaction, we believe that a clear and systematic design process can help to improve the quality of gesture-based interaction. In this paper, we report a study that applies a user-centered approach in the process of gesture development, including the requirement gathering and functionality definition, gesture elicitation, gesture design and usability evaluation. Our results show that these issues must be taken into consideration when designing freehand gesture interfaces. The involvement of actual users, especially in the environment in which they would use the final systems, often leads to improved user experience and user satisfaction. Finally, we highlight the implications of this work for the development of all gesture-based applications.