3D Tracking via Body Radio Reflections
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Katabi_3D tracking.pdf
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3.03 MB
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Author(s)
Adib, Fadel M.
Kabelac, Zachary E.
Katabi, Dina
Miller, Robert C.
Date Issued
April 2014
Journal
Proceedings of the 11th USENIX Conference on Networked Systems Design and Implementation (NSDI '14)
Publisher
Association for Computing Machinery (ACM)
Citation
Fadel Adib, Zachary Kabelac, Dina Katabi, and Robert C. Miller. 2014. 3D tracking via body radio reflections. In Proceedings of the 11th USENIX Conference on Networked Systems Design and Implementation (NSDI'14). USENIX Association, Berkeley, CA, USA, 317-329.
Version
Author's final manuscript
Abstract
This paper introduces WiTrack, a system that tracks the 3D motion of a user from the radio signals reflected off her body. It works even if the person is occluded from the WiTrack device or in a different room. WiTrack does not require the user to carry any wireless device, yet its accuracy exceeds current RF localization systems, which require the user to hold a transceiver. Empirical measurements with a WiTrack prototype show that, on average, it localizes the center of a human body to within a median of 10 to 13 cm in the x and y dimensions, and 21 cm in the z dimension. It also provides coarse tracking of body parts, identifying the direction of a pointing hand with a median of 11.2°. WiTrack bridges a gap between RF-based localization systems which locate a user through walls and occlusions, and human-computer interaction systems like Kinect, which can track a user without instrumenting her body, but require the user to stay within the direct line of sight of the device.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
http://dl.acm.org/citation.cfm?id=2616478
