<div class="csl-bib-body">
<div class="csl-entry">Bauer, D. (2018). <i>Evaluation of the recognition distances of safety signs in VR cosidering vision impairments</i> [Diploma Thesis, Technische Universität Wien]. reposiTUm. https://doi.org/10.34726/hss.2018.44387</div>
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dc.identifier.uri
https://doi.org/10.34726/hss.2018.44387
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/4349
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dc.description.abstract
To facilitate the safe evacuation of buildings, escape-route safety signs need to be placed along the whole escape route such that they are legible for building occupants. While standards and legal requirements provide suggestions on how to select and place safety signs to achieve this, they do not provide sufficient considerations concerning people suffering from vision impairments. A main cause of vision impairment are age-related eye diseases, with the most common symptom being the loss of visual acuity. We investigate the influence of visual acuity on the ability to recognize safety signs using a novel methodology, evaluating existing standards concerning vision impairments: We calibrate the visual acuity of the test subjects to the same level via a standardized medical test in VR. This is achieved by using test subjects with normal or corrected vision and simulating the impairment in VR. Furthermore, we present a tool for lighting designers which enables them to check their designs considering maximum recognition distances to investigate problematic areas along an escape route. Using our novel user-study methodology, we determined the recognition distances for safety signs, observed under two different levels of visual acuity and varying observation angles. In addition, we determined the impact of the HTC Vive's HMD on the visual acuity achievable in VR. We conclude that the existing standards fail to correctly estimate the maximum recognition distances of safety signs for observers suffering from reduced visual acuity.
en
dc.language
English
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dc.language.iso
en
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dc.rights.uri
http://rightsstatements.org/vocab/InC/1.0/
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dc.subject
visual impairments
de
dc.subject
virtual reality
de
dc.subject
escape routes
de
dc.subject
visual impairments
en
dc.subject
virtual reality
en
dc.subject
escape routes
en
dc.title
Evaluation of the recognition distances of safety signs in VR cosidering vision impairments
en
dc.type
Thesis
en
dc.type
Hochschulschrift
de
dc.rights.license
In Copyright
en
dc.rights.license
Urheberrechtsschutz
de
dc.identifier.doi
10.34726/hss.2018.44387
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dc.contributor.affiliation
TU Wien, Österreich
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dc.rights.holder
Dominik Bauer
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dc.publisher.place
Wien
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tuw.version
vor
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tuw.thesisinformation
Technische Universität Wien
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dc.contributor.assistant
Krösl, Katharina
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tuw.publication.orgunit
E186 - Institut für Computergraphik und Algorithmen