One-line GUI

In this research, we have developed an interactive television (ITV) interface, which has different context than a conventional television. We assumed that people do not want to be disturbed of their watching experience by a large graphic user interface (GUI), which occludes TV contents. In this paper, we propose a new concept of interface called One-line GUI, a compressed GUI placed at the bottom of the TV screen, and which is manipulated with optimized physical user interface (PUI). Minimized GUI will not occlude the TV contents and support necessary task of ITV simultaneously with integrated manipulation system. To evaluate usability, we conducted user study to compare interface between the conventional ITV and One-line GUI. The result shows that the participants could perform the task better without difficulty with One-line GUI.