LeviProps: animating levitated optimized fabric structures using holographic acoustic tweezers

Morales, Rafael, Marzo, Asier, Subramanian, Sriram and Martinez, Diego (2019) LeviProps: animating levitated optimized fabric structures using holographic acoustic tweezers. 32nd ACM User Interface Software and Technology Symposium (UIST 2019), New Orleans, Louisiana, USA, 20 - 23 October, 2019. Published in: Proceedings of the 32nd Annual ACM Symposium on User Interface Software and Technology. 651-661. Association for Computing Machinery (ACM), New York, NY, USA. ISBN 978-1-4503-6816-2

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LeviProps are tangible structures used to create interactive mid-air experiences. They are composed of an acoustically- transparent lightweight piece of fabric and attached beads that act as levitated anchors. This combination enables real- time 6 Degrees-of-Freedom control of levitated structures which are larger and more diverse than those possible with previous acoustic manipulation techniques. LeviProps can be used as free-form interactive elements and as projection surfaces. We developed an authoring tool to support the creation of LeviProps. Our tool considers the outline of the prop and the user constraints to compute the optimum locations for the anchors (i.e. maximizing trapping forces), increasing prop stability and maximum size. The tool produces a final LeviProp design which can be fabricated following a simple procedure. This paper explains and evaluates our approach and showcases example applications, such as interactive storytelling, games and mid-air displays.

Item Type: Conference Proceedings
Additional Information: This project has also received funding from the EU H2020 research and innovation program (#737087) and the Royal Academy of Engineering Chairs in Emerging Technology Program.
Keywords: Levitation, design methods, tools, fabrication, mid-air UIs
Schools and Departments: School of Engineering and Informatics > Informatics
Research Centres and Groups: Creative Technology
Depositing User: Lucy Arnold
Date Deposited: 24 Sep 2019 16:04
Last Modified: 06 Nov 2019 15:17
URI: http://sro.sussex.ac.uk/id/eprint/86376

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Project NameSussex Project NumberFunderFunder Ref
User Interaction with self-supporting free-form physical objectsG1747EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCILEP/N014197/1