Tablet interaction techniques for viewport navigation on large displays

Abstract

While a subset view on tablet devices allows users to observe in detail an area of the large display from a distance, interaction techniques are required to support viewport navigation around the display efficiently. We propose two dual-touch techniques (DualTaP and DirectTaP) for defining both the size and position of the viewport simultaneously. We also explore two orientation-based techniques (TabTilt and TabPoint) to further explore the design space. In our user study, we found that the DualTaP technique out performs the rest due to its speed and overall preference. We discuss our initial findings and suggests potential applications for using these techniques on large displays.