We propose a new interface that facilitates content navigation in videos on devices with touchscreen interaction. This interface allows both coarse-grained and fine-grained navigation in an intuitive way and enables better performance when used to locate specific scenes in videos. We implemented this interface on a 5.5-inch smartphone and tested it with 24 users. Our results show that for video navigation tasks the proposed interface significantly outperforms the seekerbar interface, commonly used with video players on mobile devices. Moreover, we found that the interaction concept of the Scrubbing Wheel has a much lower perceived workload than the widely used seeker-bar, and is the preferred tool to locate scenes in videos for all tested users in our study.
['Klaus Schoeffmann', 'Lukas Burgstaller']
Scrubbing Wheel: An Interaction Concept to Improve Video Content Navigation on Devices with Touchscreens