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Avoiding 3D Obstacles in Mixed Reality: Does It Differ from Negotiating Real Obstacles?

Mixed-reality technologies are evolving rapidly, allowing for gradually more realistic interaction with digital content while moving freely in real-world environments. In this study, we examined the suitability of the Microsoft HoloLens mixed-reality headset for creating locomotor interactions in re...

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Detalles Bibliográficos
Autores principales: Coolen, Bert, Beek, Peter J., Geerse, Daphne J., Roerdink, Melvyn
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7071133/
https://www.ncbi.nlm.nih.gov/pubmed/32079351
http://dx.doi.org/10.3390/s20041095
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author Coolen, Bert
Beek, Peter J.
Geerse, Daphne J.
Roerdink, Melvyn
author_facet Coolen, Bert
Beek, Peter J.
Geerse, Daphne J.
Roerdink, Melvyn
author_sort Coolen, Bert
collection PubMed
description Mixed-reality technologies are evolving rapidly, allowing for gradually more realistic interaction with digital content while moving freely in real-world environments. In this study, we examined the suitability of the Microsoft HoloLens mixed-reality headset for creating locomotor interactions in real-world environments enriched with 3D holographic obstacles. In Experiment 1, we compared the obstacle-avoidance maneuvers of 12 participants stepping over either real or holographic obstacles of different heights and depths. Participants’ avoidance maneuvers were recorded with three spatially and temporally integrated Kinect v2 sensors. Similar to real obstacles, holographic obstacles elicited obstacle-avoidance maneuvers that scaled with obstacle dimensions. However, with holographic obstacles, some participants showed dissimilar trail or lead foot obstacle-avoidance maneuvers compared to real obstacles: they either consistently failed to raise their trail foot or crossed the obstacle with extreme lead-foot margins. In Experiment 2, we examined the efficacy of mixed-reality video feedback in altering such dissimilar avoidance maneuvers. Participants quickly adjusted their trail-foot crossing height and gradually lowered extreme lead-foot crossing heights in the course of mixed-reality video feedback trials, and these improvements were largely retained in subsequent trials without feedback. Participant-specific differences in real and holographic obstacle avoidance notwithstanding, the present results suggest that 3D holographic obstacles supplemented with mixed-reality video feedback may be used for studying and perhaps also training 3D obstacle avoidance.
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spelling pubmed-70711332020-03-19 Avoiding 3D Obstacles in Mixed Reality: Does It Differ from Negotiating Real Obstacles? Coolen, Bert Beek, Peter J. Geerse, Daphne J. Roerdink, Melvyn Sensors (Basel) Article Mixed-reality technologies are evolving rapidly, allowing for gradually more realistic interaction with digital content while moving freely in real-world environments. In this study, we examined the suitability of the Microsoft HoloLens mixed-reality headset for creating locomotor interactions in real-world environments enriched with 3D holographic obstacles. In Experiment 1, we compared the obstacle-avoidance maneuvers of 12 participants stepping over either real or holographic obstacles of different heights and depths. Participants’ avoidance maneuvers were recorded with three spatially and temporally integrated Kinect v2 sensors. Similar to real obstacles, holographic obstacles elicited obstacle-avoidance maneuvers that scaled with obstacle dimensions. However, with holographic obstacles, some participants showed dissimilar trail or lead foot obstacle-avoidance maneuvers compared to real obstacles: they either consistently failed to raise their trail foot or crossed the obstacle with extreme lead-foot margins. In Experiment 2, we examined the efficacy of mixed-reality video feedback in altering such dissimilar avoidance maneuvers. Participants quickly adjusted their trail-foot crossing height and gradually lowered extreme lead-foot crossing heights in the course of mixed-reality video feedback trials, and these improvements were largely retained in subsequent trials without feedback. Participant-specific differences in real and holographic obstacle avoidance notwithstanding, the present results suggest that 3D holographic obstacles supplemented with mixed-reality video feedback may be used for studying and perhaps also training 3D obstacle avoidance. MDPI 2020-02-17 /pmc/articles/PMC7071133/ /pubmed/32079351 http://dx.doi.org/10.3390/s20041095 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Coolen, Bert
Beek, Peter J.
Geerse, Daphne J.
Roerdink, Melvyn
Avoiding 3D Obstacles in Mixed Reality: Does It Differ from Negotiating Real Obstacles?
title Avoiding 3D Obstacles in Mixed Reality: Does It Differ from Negotiating Real Obstacles?
title_full Avoiding 3D Obstacles in Mixed Reality: Does It Differ from Negotiating Real Obstacles?
title_fullStr Avoiding 3D Obstacles in Mixed Reality: Does It Differ from Negotiating Real Obstacles?
title_full_unstemmed Avoiding 3D Obstacles in Mixed Reality: Does It Differ from Negotiating Real Obstacles?
title_short Avoiding 3D Obstacles in Mixed Reality: Does It Differ from Negotiating Real Obstacles?
title_sort avoiding 3d obstacles in mixed reality: does it differ from negotiating real obstacles?
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7071133/
https://www.ncbi.nlm.nih.gov/pubmed/32079351
http://dx.doi.org/10.3390/s20041095
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