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MOBICOM
2015
ACM

Extending Mobile Interaction Through Near-Field Visible Light Sensing

6 years 5 months ago
Extending Mobile Interaction Through Near-Field Visible Light Sensing
Mobile devices are shrinking their form factors for portability, but user-mobile interaction is becoming increasingly challenging. In this paper, we propose a novel system called Okuli to meet this challenge. Okuli is a compact, low-cost system that can augment a mobile device and extend its interaction workspace to any nearby surface area. Okuli piggybacks on visible light communication modules, and uses a low-power LED and two light sensors to locate user’s finger within the workspace. It is built on a light propagation/reflection model that achieves around one-centimeter location precision, with zero run-time training overhead. We have prototyped Okuli as an Android peripheral, with a 3D-printed shroud to host the LED and light sensors. Our experiments demonstrate Okuli’s accuracy, stability, energy efficiency, as well as its potential in serving virtual keyboard and trackpad applications. Categories and Subject Descriptors H.5.2 [INFORMATION INTERFACES AND PRESENTATION]: Us...
Chi Zhang, Josh Tabor, Jialiang Zhang, Xinyu Zhang
Added 14 Apr 2016
Updated 14 Apr 2016
Type Journal
Year 2015
Where MOBICOM
Authors Chi Zhang, Josh Tabor, Jialiang Zhang, Xinyu Zhang
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