Abstract
One common task when controlling smart displays is the manipulation of video timelines. Given current examples of smart displays that support distant bare hand control, in this paper we explore CD Gain functions to support both seeking and scrubbing tasks. Through a series of experiments, we demonstrate that a linear CD Gain function provides performance advantages when compared to either a constant function or generalised logistic function (GLF). In particular, linear gain is faster than a GLF and has lower error rate than Constant gain. Furthermore, Linear and GLF gains’ average temporal error when targeting a one second interval on a two hour timeline (±5 s) is less than one third the error of a Constant gain.
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Notes
- 1.
The experiments were conducted during the Covid-19 pandemic.
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Acknowledgements
We thank participants and our Office of Research Ethics for valuable assistance during the design of our remote study. This research was funded by a grant from Waterloo-Huawei Joint Innovation Laboratory.
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Zhang, F., Mizobuchi, S., Zhou, W., Khan, T.A., Li, W., Lank, E. (2021). Leveraging CD Gain for Precise Barehand Video Timeline Browsing on Smart Displays. In: Ardito, C., et al. Human-Computer Interaction – INTERACT 2021. INTERACT 2021. Lecture Notes in Computer Science(), vol 12935. Springer, Cham. https://doi.org/10.1007/978-3-030-85610-6_5
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