BlindScanLine
| Autor: | Maximilian Kappe, Timo Götzelmann, Julian Kreimeier |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Visually impaired
business.industry Computer science 05 social sciences Bandwidth (signal processing) 020207 software engineering Usability 02 engineering and technology Azimuth Amplitude modulation Sonification Cross-platform 0202 electrical engineering electronic engineering information engineering 0501 psychology and cognitive sciences Computer vision Artificial intelligence business 050107 human factors Cognitive load |
| Zdroj: | PETRA |
| Popis: | Sonification is a promising way for blind and visually impaired people to capture and process information purely auditory, e.g., by mapping distance metrics on sound characteristics. To optimally use the users' sensory bandwidth and cognitive load a sequential scanning at multiple azimuth angles instead of only one measuring point straight ahead could be a suitable option. Thus, we present a preliminary cross-platform implementation and evaluation of such a sequential 'line-scanning sonification' using off-the-shelf components while comparing frequency (FM) and amplitude modulation (AM). In our user study with blindfolded and visually impaired participants, users gained a more accurate mental model in significantly shorter time by means of FM compared to AM and the HoloLens' usability was rated better than our LIDAR prototype's. These initial findings show possibilities for further improvement, so that similar approaches could be used more and better in blind and visually impaired peoples' everyday life. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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