Optimizing pressure matrices: Interdigitation and interpolation methods for continuous position input

Paul Strohmeier; Victor Håkansson; Cedric Honnet; Daniel Ashbrook; Kasper Hornbæk

doi:10.1145/3294109.3295638

Optimizing pressure matrices: Interdigitation and interpolation methods for continuous position input

Paul Strohmeier, Victor Håkansson, Cedric Honnet, Daniel Ashbrook, Kasper Hornbæk

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

8 Citations (Scopus)

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.

Original language	English
Title of host publication	TEI 2019 - Proceedings of the 13th International Conference on Tangible, Embedded, and Embodied Interaction
Publisher	Association for Computing Machinery
Publication date	2019
Pages	117-126
ISBN (Electronic)	9781450361965
DOIs	https://doi.org/10.1145/3294109.3295638
Publication status	Published - 2019
Event	13th International Conference on Tangible, Embedded, and Embodied Interaction, TEI 2019 - Tempe, United States Duration: 17 Mar 2019 → 20 Mar 2019

Conference

Conference	13th International Conference on Tangible, Embedded, and Embodied Interaction, TEI 2019
Country/Territory	United States
City	Tempe
Period	17/03/2019 → 20/03/2019
Sponsor	ACM SIGCHI

Keywords

ETextile
Interdigitation
Interpolation
Piezoresistive
Pressure input
Pressure matrix
Sensor design

Access to Document

10.1145/3294109.3295638

Cite this

Strohmeier, P., Håkansson, V., Honnet, C., Ashbrook, D., & Hornbæk, K. (2019). Optimizing pressure matrices: Interdigitation and interpolation methods for continuous position input. In TEI 2019 - Proceedings of the 13th International Conference on Tangible, Embedded, and Embodied Interaction (pp. 117-126). Association for Computing Machinery. https://doi.org/10.1145/3294109.3295638

Optimizing pressure matrices : Interdigitation and interpolation methods for continuous position input. / Strohmeier, Paul; Håkansson, Victor; Honnet, Cedric; Ashbrook, Daniel ; Hornbæk, Kasper.

TEI 2019 - Proceedings of the 13th International Conference on Tangible, Embedded, and Embodied Interaction. Association for Computing Machinery, 2019. p. 117-126.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Strohmeier, P, Håkansson, V, Honnet, C, Ashbrook, D & Hornbæk, K 2019, Optimizing pressure matrices: Interdigitation and interpolation methods for continuous position input. in TEI 2019 - Proceedings of the 13th International Conference on Tangible, Embedded, and Embodied Interaction. Association for Computing Machinery, pp. 117-126, 13th International Conference on Tangible, Embedded, and Embodied Interaction, TEI 2019, Tempe, United States, 17/03/2019. https://doi.org/10.1145/3294109.3295638

Strohmeier P, Håkansson V, Honnet C, Ashbrook D , Hornbæk K. Optimizing pressure matrices: Interdigitation and interpolation methods for continuous position input. In TEI 2019 - Proceedings of the 13th International Conference on Tangible, Embedded, and Embodied Interaction. Association for Computing Machinery. 2019. p. 117-126 https://doi.org/10.1145/3294109.3295638

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