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FarOut Touch: Extending the Range of ad hoc Touch Sensing with Depth Cameras

Authors:

James Spann, and

Chris HarrisonAuthors Info & Claims

SUI '21: Proceedings of the 2021 ACM Symposium on Spatial User Interaction

November 2021

Article No.: 5, Pages 1 - 12

https://doi.org/10.1145/3485279.3485281

Published: 09 November 2021 Publication History

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Abstract

The ability to co-opt everyday surfaces for touch interactivity has been an area of HCI research for several decades. Ideally, a sensor operating in a device (such as a smart speaker) would be able to enable a whole room with touch sensing capabilities. Such a system could allow for software-defined light switches on walls, gestural input on countertops, and in general, more digitally flexible environments. While advances in depth sensors and computer vision have led to step-function improvements in the past, progress has slowed in recent years. We surveyed the literature and found that the very best ad hoc touch sensing systems are able to operate at ranges up to around 1.5 m. This limited range means that sensors must be carefully positioned in an environment to enable specific surfaces for interaction. In this research, we set ourselves the goal of doubling the sensing range of the current state of the art system. To achieve this goal, we leveraged an interesting finger ”denting” phenomena and adopted a marginal gains philosophy when developing our full stack. When put together, these many small improvements compound and yield a significant stride in performance. At 3 m range, our system offers a spatial accuracy of 0.98 cm with a touch segmentation accuracy of 96.1%, in line with prior systems operating at less than half the range. While more work remains to be done to achieve true room-scale ubiquity, we believe our system constitutes a useful advance over prior work.

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Cited By

Streli PJiang JRossie JHolz C(2023)Structured Light Speckle: Joint Ego-Centric Depth Estimation and Low-Latency Contact Detection via Remote VibrometryProceedings of the 36th Annual ACM Symposium on User Interface Software and Technology10.1145/3586183.3606749(1-12)Online publication date: 29-Oct-2023
https://dl.acm.org/doi/10.1145/3586183.3606749
Xu VNakagaki K(2023)Xs: Interactive Scissor Mechanisms as Portable and Customizable Shape-Changing InterfacesProceedings of the Seventeenth International Conference on Tangible, Embedded, and Embodied Interaction10.1145/3569009.3572737(1-10)Online publication date: 26-Feb-2023
https://dl.acm.org/doi/10.1145/3569009.3572737
Fan NXiao R(2022)Reducing the Latency of Touch Tracking on Ad-hoc SurfacesProceedings of the ACM on Human-Computer Interaction10.1145/35677306:ISS(489-499)Online publication date: 14-Nov-2022
https://dl.acm.org/doi/10.1145/3567730

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cover image ACM Conferences

SUI '21: Proceedings of the 2021 ACM Symposium on Spatial User Interaction

November 2021

206 pages

ISBN:9781450390910

DOI:10.1145/3485279

Editors:
Francisco Ortega
Colorado State University, USA
,
Robert Teather
Carleton University, Canada
,
Gerd Bruder
University of Central Florida, USA
,
Thammathip Piumsomboon
University of Canterbury, New Zealand
,
Benjamin Weyers
University of Trier, Germany
,
Anil Ufuk Batmaz
Kadir Has University, Turkey
,
Kyle Johnsen
University of Georgia, USA
,
Christoph Borst
University of Louisiana at Lafayette, USA

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Cited By

Streli PJiang JRossie JHolz C(2023)Structured Light Speckle: Joint Ego-Centric Depth Estimation and Low-Latency Contact Detection via Remote VibrometryProceedings of the 36th Annual ACM Symposium on User Interface Software and Technology10.1145/3586183.3606749(1-12)Online publication date: 29-Oct-2023
https://dl.acm.org/doi/10.1145/3586183.3606749
Xu VNakagaki K(2023)Xs: Interactive Scissor Mechanisms as Portable and Customizable Shape-Changing InterfacesProceedings of the Seventeenth International Conference on Tangible, Embedded, and Embodied Interaction10.1145/3569009.3572737(1-10)Online publication date: 26-Feb-2023
https://dl.acm.org/doi/10.1145/3569009.3572737
Fan NXiao R(2022)Reducing the Latency of Touch Tracking on Ad-hoc SurfacesProceedings of the ACM on Human-Computer Interaction10.1145/35677306:ISS(489-499)Online publication date: 14-Nov-2022
https://dl.acm.org/doi/10.1145/3567730

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