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Art Karshmer Lectures in Access to Mathematics, Science and Engineering Read chapter Read first chapter

2022 | OriginalPaper | Chapter

The Accessible Tactile Indoor Maps (ATIM) Symbol Set: A Common Symbol Set for Different Printing Methods

Authors : Giuseppe Melfi, Karin Müller, Gerhard Jaworek, Rainer Stiefelhagen

Published in: Computers Helping People with Special Needs

Publisher: Springer International Publishing

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Abstract

In this paper, we describe a method on how to create a common tactile symbol set for printing methods which differ in resolution. We used a well-tested symbol set for swell paper as a basis and defined criteria on how to transfer the symbols to a different printing method. The method was developed in a user-centered design approach and assessed by a blind expert on tactile graphics resulting in the Accessible Tactile Indoor Maps (ATIM) symbol set. Moreover, we extracted the most important accessibility features for indoor environments and mapped them to distinct symbols. The presented method can also be useful for transfer to other printing techniques with a different resolution.

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previous chapter Supporting Independent Travelling for People with Visual Impairments in Buildings by Harmonizing Maps on Embossed Paper and Pin-Matrix Devices for Accessible Info-Points
next chapter Indoor Navigation Assistance for Visually Impaired People via Dynamic SLAM and Panoptic Segmentation with an RGB-D Sensor
Footnotes
1
Please note, that the [11] symbol set considers rotated symbols as different symbols.
 
3
Some embossers have the ability to print surfaces by alternating tactile dots and spaces.
 
Literature
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Engel, C., et al.: Travelling more independently: a requirements analysis for accessible journeys to unknown buildings for people with visual impairments. In: The 22nd International ACM SIGACCESS Conference on Computers and Accessibility. ASSETS 2020, Association for Computing Machinery, New York, NY (2020)
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Froehlich, J.E., et al.: Grand challenges in accessible maps. Interactions 26(2), 78–81 (2019)
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Hersh, M.: Mental maps and the use of sensory information by blind and partially sighted people. ACM Trans. Access. Comput. 13(2), 1-32 (2020)
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Prescher, D., Bornschein, J., Weber, G.: Consistency of a tactile pattern set. ACM TACCESS 10(2), 1–29 (2017)
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Rowell, J., Ungar, S.: The world of touch: results of an international survey of tactile maps and symbols. Cartographic J. 40(3), 259–263 (2003)CrossRef
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Trinh, V., Manduchi, R.: A multi-scale embossed map authoring tool for indoor environments. In: Miesenberger, K., Manduchi, R., Covarrubias Rodriguez, M., Peňáz, P. (eds.) Computers Helping People with Special Needs, pp. 459–466. Springer International Publishing, Cham (2020)CrossRef
Metadata
Title
The Accessible Tactile Indoor Maps (ATIM) Symbol Set: A Common Symbol Set for Different Printing Methods
Authors
Giuseppe Melfi
Karin Müller
Gerhard Jaworek
Rainer Stiefelhagen
Copyright Year
2022
Book
Computers Helping People with Special Needs

Print ISBN: 978-3-031-08647-2

Electronic ISBN: 978-3-031-08648-9

Copyright Year: 2022

DOI
https://doi.org/10.1007/978-3-031-08648-9_18