Leveraging Head Movement for Navigating Off-Screen Content on Large Curved Displays
This work addresses navigation challenges for users of large curved displays, offering an incremental improvement over existing methods.
The paper tackled the problem of accessing off-screen content on large curved displays by using head movement for workspace navigation, finding that a polynomial rate control function achieved the fastest trial times and outperformed standard controller-based methods in a map navigation task.
Large curved displays are ideal for viewing 360 degree content, such as 3D maps, but typically restrict users to a 180 degree viewport, leaving information off-screen. Since users naturally direct their heads toward regions on-screen before interacting, head movements offer a promising alternative for workspace manipulation to bring off-screen content into view. We explore rate control functions (linear, sigmoid, polynomial) and zone control functions (continuous, friction, interrupted, additive) to translate head rotations into workspace control, enabling users to access off-screen content. Polynomial rate control emerges as the best choice, achieving the fastest trial times and highest subjective ratings. Using a map navigation task, our second study demonstrates that users perform better with the polynomial head-based technique than with the industry-standard controller-based methods, click-and-drag and joystick-push, for 360\degree workspace navigation. Based on these findings, we provide guidelines to inform the design of future 360\degree workspace navigation techniques for large curved displays.