Point-and-shake: selecting from levitating object displays

Freeman, Euan, Williamson, Julie, Subramanian, Sriram and Brewster, Stephen (2018) Point-and-shake: selecting from levitating object displays. 2018 CHI Conference on Human Factors in Computing Systems, Montréal, Canada, 21-26 April. Published in: CHI '18:Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems. Association for Computing Machinery, New York. ISBN 978-1-4503-5620-6

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Acoustic levitation enables a radical new type of humancomputer interface composed of small levitating objects. For the first time, we investigate the selection of such objects, an important part of interaction with a levitating object display. We present Point-and-Shake, a mid-air pointing interaction for selecting levitating objects, with feedback given through object movement. We describe the implementation of this technique and present two user studies that evaluate it. The first study found that users could accurately (96%) and quickly (4.1s) select objects by pointing at them. The second study found that users were able to accurately (95%) and quickly (3s) select occluded objects. These results show that Point-and- Shake is an effective way of initiating interaction with levitating object displays.

Item Type: Conference Proceedings
Keywords: Acoustic Levitation; Pointing; Ray-Cast Pointing; Selection
Schools and Departments: School of Engineering and Informatics > Informatics
Subjects: T Technology
Depositing User: Sriram Subramanian
Date Deposited: 02 Feb 2018 09:18
Last Modified: 26 Apr 2018 16:15
URI: http://srodev.sussex.ac.uk/id/eprint/73289

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