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The Unfolding Space Glove: A Wearable Spatio-Visual to Haptic Sensory Substitution Device for Blind People

  • This paper documents the design, implementation and evaluation of the Unfolding Space Glove—an open source sensory substitution device. It transmits the relative position and distance of nearby objects as vibratory stimuli to the back of the hand and thus enables blind people to haptically explore the depth of their surrounding space, assisting with navigation tasks such as object recognition and wayfinding. The prototype requires no external hardware, is highly portable, operates in all lighting conditions, and provides continuous and immediate feedback—all while being visually unobtrusive. Both blind (n = 8) and blindfolded sighted participants (n = 6) completed structured training and obstacle courses with both the prototype and a white long cane to allow performance comparisons to be drawn between them. The subjects quickly learned how to use the glove and successfully completed all of the trials, though still being slower with it than with the cane. Qualitative interviews revealed a high level of usability and user experience. Overall, the results indicate the general processability of spatial information through sensory substitution using haptic, vibrotactile interfaces. Further research would be required to evaluate the prototype’s capabilities after extensive training and to derive a fully functional navigation aid from its features.

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Metadaten
Author:Jakob Kilian, Alexander Neugebauer, Lasse Scherffig, Siegfried Wahl
URN:urn:nbn:de:hbz:832-epub4-19560
DOI:https://doi.org/10.3390/s22051859
ISSN:1424-8220
Parent Title (English):Sensors
Publisher:MDPI
Editor:Andrea Cataldo
Document Type:Article
Language:English
Date of first Publication:2022/02/26
Date of Publication (online):2022/05/10
GND-Keyword:Blinder Mensch; Fortbewegung; Haptische Feedback-Technologie; Mobilität; Navigation; Open Source; Orientierung
Tag:Blind; Haptic; Locomotion; Mobility; Navigation; Open Source; Orientation; Tactile Vision Sensory Substitution; Visually Impaired; Wearable
Volume:22
Issue:5
Article Number:1859
Page Number:33
Institutes:Kulturwissenschaften (F02) / Fakultät 02 / Köln International School of Design
Dewey Decimal Classification:600 Technik, Medizin, angewandte Wissenschaften
Open Access:Open Access
DeepGreen:DeepGreen
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International