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Optimizing Pressure Matrices: Interdigitation and Interpolation Methods for Continuous Position Input

Abstract : This paper provides resources and design recommendations for optimizing position input for pressure sensor matrices, a sensor design often used in eTextiles. Currently applications using pressure matrices for precise continuous position control are rare. One reason designers opt against using these sensors for continuous position control is that when the finger transitions from one sensing electrode to the next, jerky motion, jumps or other non-linear artifacts appear. We demonstrate that interdigitation can improve transition behavior and discuss interpolation algorithms to best leverage such designs. We provide software for reproducing our sensors and experiment, as well as a dataset consisting of 1122 swipe gestures performed on 17 sensors.
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https://hal.archives-ouvertes.fr/hal-01946451
Contributor : Cedric Honnet <>
Submitted on : Sunday, January 13, 2019 - 2:26:25 PM
Last modification on : Monday, May 11, 2020 - 5:28:16 PM
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Paul Strohmeier, Victor Håkansson, Cedric Honnet, Daniel Ashbrook, Kasper Hornbæk. Optimizing Pressure Matrices: Interdigitation and Interpolation Methods for Continuous Position Input. ACM International Conference on Tangible, Embedded and Embodied Interaction (TEI), Mar 2019, Tempe, AZ, United States. ⟨10.1145/3294109.3295638⟩. ⟨hal-01946451⟩

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