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Developing Dynamic Audio Navigation UIs to Pinpoint Elements in Tactile Graphics

Ramôa, Gaspar 1; Schmidt, Vincent; König, Peter
1 Institut für Anthropomatik und Robotik (IAR), Karlsruher Institut für Technologie (KIT)


Access to complex graphical information is essential when connecting blind and visually impaired (BVI) people with the world. Tactile graphics readers enable access to graphical data through audio-tactile user interfaces (UIs), but these have yet to mature. A challenging task for blind people is locating specific elements–areas in detailed tactile graphics. To this end, we developed three audio navigation UIs that dynamically guide the user’s hand to a specific position using audio feedback. One is based on submarine sonar sounds, another relies on the target’s coordinate plan x and y-axis, and the last uses direct voice instructions. The UIs were implemented in the Tactonom Reader device, a new tactile graphic reader that enhances swell paper graphics with pinpointed audio explanations. To evaluate the effectiveness of the three different dynamic navigation UIs, we conducted a within-subject usability test that involved 13 BVI participants. Beyond comparing the effectiveness of the different UIs, we observed and recorded the interaction of the visually impaired participants with the different navigation UI to further investigate their behavioral patterns during the interaction. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000156411
Veröffentlicht am 21.03.2023
DOI: 10.3390/mti6120113
Zitationen: 5
Zitationen: 5
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Anthropomatik und Robotik (IAR)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 2414-4088
KITopen-ID: 1000156411
Erschienen in Multimodal Technologies and Interaction
Verlag MDPI
Band 6
Heft 12
Seiten 113
Bemerkung zur Veröffentlichung cited By 0
Vorab online veröffentlicht am 18.12.2022
Nachgewiesen in Scopus
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