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Tactile Symbol Discrimination on a Small Pin-array Display

Authors:

Caterina Baccelliere,

Aleksander Waszkielewicz,

Luca BraydaAuthors Info & Claims

MAHCI'18: Proceedings of the 2018 Workshop on Multimedia for Accessible Human Computer Interface

Pages 9 - 15

https://doi.org/10.1145/3264856.3264858

Published: 15 October 2018 Publication History

Abstract

Pin-array displays are a promising technology that allow to display visual information with touch, a crucial issue for blind and partially sighted users. Such displays are programmable, therefore can considerably increase, vary and tailor the amount of information as compared to common embossed paper and, beyond Braille, they allow to display graphics. Due to a shortage in establishing which ideal resolution allows to understand simple graphical concepts, we evaluated the discriminability of tactile symbols at different resolutions and complexity levels in blind, blindfolded low-vision and sighted participants. We report no differences in discrimination accuracy between tactile symbols organized in 3x3 as compared to 4x4 arrays. A metric based on search and discrimination speed in blind and in low-vision participants does not change at different resolutions, whereas in sighted participants it significantly increases when resolution increases. We suggest possible guidelines in designing dictionaries of low-resolution tactile symbols. Our results can help designers, ergonomists and rehabilitators to develop usable human-machine interfaces with tactual symbol coding.

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Cited By

Nowak OSchäfer RButtkus ESchirp LMüller HBorchers J(2025)Investigating Eyes-Free Recognition and Distinguishability of Textile Icons in PairsProceedings of the Nineteenth International Conference on Tangible, Embedded, and Embodied Interaction10.1145/3689050.3704931(1-13)Online publication date: 4-Mar-2025
https://dl.acm.org/doi/10.1145/3689050.3704931
Tanaka KOkafuji YIwamoto T(2024)Popping-Up Poster: A Pin-Based Promotional Poster Device for Engaging Customers through Physical Shape TransformationProceedings of the ACM on Human-Computer Interaction10.1145/36981388:ISS(283-300)Online publication date: 24-Oct-2024
https://dl.acm.org/doi/10.1145/3698138
Bhatnagar THolloway C(2024)PRET Printer: Development and Evaluation of a Passive Refreshable Tactile PrinterProceedings of the 7th ACM SIGCAS/SIGCHI Conference on Computing and Sustainable Societies10.1145/3674829.3675070(156-166)Online publication date: 8-Jul-2024
https://dl.acm.org/doi/10.1145/3674829.3675070
Show More Cited By

Index Terms

Tactile Symbol Discrimination on a Small Pin-array Display
1. Hardware
  1. Communication hardware, interfaces and storage
    1. Tactile and hand-based interfaces
      1. Haptic devices
2. Human-centered computing
  1. Accessibility
  2. Human computer interaction (HCI)
    1. Interaction devices
      1. Haptic devices

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Published In

cover image ACM Conferences

MAHCI'18: Proceedings of the 2018 Workshop on Multimedia for Accessible Human Computer Interface

October 2018

38 pages

ISBN:9781450359801

DOI:10.1145/3264856

Program Chairs:
Xueliang Liu
Hefei University of Technology, China
,
Rui Min
Google, USA
,
Benoit Huet
EURECOM, France
,
Jia Jia
Tsinghua University, China

Copyright © 2018 ACM.

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Publication History

Published: 15 October 2018

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MM '18: ACM Multimedia Conference

October 22, 2018

Seoul, Republic of Korea

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Cited By

Nowak OSchäfer RButtkus ESchirp LMüller HBorchers J(2025)Investigating Eyes-Free Recognition and Distinguishability of Textile Icons in PairsProceedings of the Nineteenth International Conference on Tangible, Embedded, and Embodied Interaction10.1145/3689050.3704931(1-13)Online publication date: 4-Mar-2025
https://dl.acm.org/doi/10.1145/3689050.3704931
Tanaka KOkafuji YIwamoto T(2024)Popping-Up Poster: A Pin-Based Promotional Poster Device for Engaging Customers through Physical Shape TransformationProceedings of the ACM on Human-Computer Interaction10.1145/36981388:ISS(283-300)Online publication date: 24-Oct-2024
https://dl.acm.org/doi/10.1145/3698138
Bhatnagar THolloway C(2024)PRET Printer: Development and Evaluation of a Passive Refreshable Tactile PrinterProceedings of the 7th ACM SIGCAS/SIGCHI Conference on Computing and Sustainable Societies10.1145/3674829.3675070(156-166)Online publication date: 8-Jul-2024
https://dl.acm.org/doi/10.1145/3674829.3675070
Nowak OBecker LPettirsch SBorchers J(2024)Mappings in the Home: Selecting Home Appliances in 3D SpaceExtended Abstracts of the CHI Conference on Human Factors in Computing Systems10.1145/3613905.3650745(1-7)Online publication date: 11-May-2024
https://dl.acm.org/doi/10.1145/3613905.3650745
Kim YYim JKim JKim KLee G(2024)STButton: Exploring Opportunities for Buttons with Spatio-Temporal Tactile OutputExtended Abstracts of the CHI Conference on Human Factors in Computing Systems10.1145/3613905.3648671(1-5)Online publication date: 11-May-2024
https://dl.acm.org/doi/10.1145/3613905.3648671
Etezad MJoshi RAlexander RCibrian F(2024)3D-Printed Models for Optimizing Tactile Braille & Shape DisplayIEEE Transactions on Haptics10.1109/TOH.2024.343358217:4(782-793)Online publication date: 1-Oct-2024
https://dl.acm.org/doi/10.1109/TOH.2024.3433582
Schäfer RNowak OSuchmann LSchröder SBorchers J(2023)What’s That Shape? Investigating Eyes-Free Recognition of Textile IconsProceedings of the 2023 CHI Conference on Human Factors in Computing Systems10.1145/3544548.3580920(1-12)Online publication date: 19-Apr-2023
https://dl.acm.org/doi/10.1145/3544548.3580920
Qiu SHu JHan TRauterberg M(2023)Can blindfolded users replace blind ones in product testing? an empirical studyBehaviour & Information Technology10.1080/0144929X.2023.222676843:8(1664-1682)Online publication date: 6-Jul-2023
https://doi.org/10.1080/0144929X.2023.2226768
Melfi GScholch LSchwarz TMuller KStiefelhagen R(2022)Audio-Tactile Reader (ATR): Interaction Concepts for Students with Blindness to Explore Digital STEM Documents on a 2D Haptic Device2022 IEEE Haptics Symposium (HAPTICS)10.1109/HAPTICS52432.2022.9765568(1-6)Online publication date: 21-Mar-2022
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Kim SPark GKim SJung JLee BLee GScott STory MKim J(2019)Surface HapticsProceedings of the 2019 ACM International Conference on Interactive Surfaces and Spaces10.1145/3343055.3361925(421-425)Online publication date: 10-Nov-2019
https://dl.acm.org/doi/10.1145/3343055.3361925
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