research-article

AuraRing: Precise Electromagnetic Finger Tracking

Authors:

Farshid Salemi Parizi,

Shwetak PatelAuthors Info & Claims

Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, Volume 3, Issue 4

Article No.: 150, Pages 1 - 28

https://doi.org/10.1145/3369831

Published: 14 September 2020 Publication History

Abstract

Wearable computing platforms, such as smartwatches and head-mounted mixed reality displays, demand new input devices for high-fidelity interaction. We present AuraRing, a wearable magnetic tracking system designed for tracking fine-grained finger movement. The hardware consists of a ring with an embedded electromagnetic transmitter coil and a wristband with multiple sensor coils. By measuring the magnetic fields at different points around the wrist, AuraRing estimates the five degree-of-freedom pose of the ring. We develop two different approaches to pose reconstruction---a first-principles iterative approach and a closed-form neural network approach. Notably, AuraRing requires no runtime supervised training, ensuring user and session independence. AuraRing has a resolution of 0.1 mm and a dynamic accuracy of 4.4 mm, as measured through a user evaluation with optical ground truth. The ring is completely self-contained and consumes just 2.3 mW of power.

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Narayanan Balaji AKimber CDu RKim D(2024)RetroSphere: Enabling Low-power and Affordable 3D Input for Lightweight Augmented Reality DevicesGetMobile: Mobile Computing and Communications10.1145/3686138.368614828:2(31-37)Online publication date: 30-Jul-2024
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Index Terms

AuraRing: Precise Electromagnetic Finger Tracking
1. Human-centered computing
  1. Human computer interaction (HCI)
    1. Interaction devices
  2. Ubiquitous and mobile computing

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AuraRing: Precise Electromagnetic Finger Tracking

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We present AuraRing, a wearable electromagnetic tracking system for fine-grained finger movement. The hardware consists of a ring with an embedded electromagnetic transmitter coil and a wristband with multiple sensor coils. By measuring the magnetic ...
AuraRing: precise electromagnetic finger tracking

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cover image Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies

Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies Volume 3, Issue 4

December 2019

873 pages

EISSN:2474-9567

DOI:10.1145/3375704

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Copyright © 2019 ACM.

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Published: 14 September 2020

Published in IMWUT Volume 3, Issue 4

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Cited By

Narayanan Balaji AKimber CDu RKim D(2024)RetroSphere: Enabling Low-power and Affordable 3D Input for Lightweight Augmented Reality DevicesGetMobile: Mobile Computing and Communications10.1145/3686138.368614828:2(31-37)Online publication date: 30-Jul-2024
https://dl.acm.org/doi/10.1145/3686138.3686148
Chen DLuo QChen XWang XZhou C(2024)MagDotProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36314237:4(1-25)Online publication date: 12-Jan-2024
https://dl.acm.org/doi/10.1145/3631423
Wang XZhang Y(2024)TextureSightProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36314137:4(1-27)Online publication date: 12-Jan-2024
https://dl.acm.org/doi/10.1145/3631413
Lee CZhang RAgarwal DYu TGunda VLopez OKim JYin SDong BLi KSakashita MGuimbretiere FZhang C(2024)EchoWrist: Continuous Hand Pose Tracking and Hand-Object Interaction Recognition Using Low-Power Active Acoustic Sensing On a WristbandProceedings of the CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642910(1-21)Online publication date: 11-May-2024
https://dl.acm.org/doi/10.1145/3613904.3642910
Shen XYu CWang XLiang CChen HShi Y(2024)MouseRing: Always-available Touchpad Interaction with IMU RingsProceedings of the CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642225(1-19)Online publication date: 11-May-2024
https://dl.acm.org/doi/10.1145/3613904.3642225
Wu MLangerak THilliges OZarate J(2024)Using Synthetic Data in Supervised Learning for Robust 5-DoF Magnetic Marker LocalizationIEEE Transactions on Magnetics10.1109/TMAG.2024.341672960:8(1-11)Online publication date: Aug-2024
https://doi.org/10.1109/TMAG.2024.3416729
Yamamoto SIkematsu KKato KSugiura Y(2024)Pinch Force Measurement Using a Geomagnetic Sensor2024 IEEE/SICE International Symposium on System Integration (SII)10.1109/SII58957.2024.10417164(284-287)Online publication date: 8-Jan-2024
https://doi.org/10.1109/SII58957.2024.10417164
Shankar RJung B(2024)Calibration of Tri-Axial Sensor Coil for Magnetic TrackingIEEE Sensors Journal10.1109/JSEN.2024.334943024:4(4365-4372)Online publication date: 15-Feb-2024
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Li YReddy RZhang CNandakumar R(2024)Beyond-Voice: Towards Continuous 3D Hand Pose Tracking on Commercial Home Assistant Devices2024 23rd ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN)10.1109/IPSN61024.2024.00017(151-162)Online publication date: 13-May-2024
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Heo JChoi HLee YKim HJi HPark HLee YJung CNguyen HLee D(2024)Hand Tracking: SurveyInternational Journal of Control, Automation and Systems10.1007/s12555-024-0298-122:6(1761-1778)Online publication date: 28-May-2024
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