Non-photorealistic rendering as a feedback strategy in virtual reality for rehabilitation

Virtual reality (VR) rehabilitation has been proven to be a very promising method to increase the focus and attention of patients by immersing them in a virtual world, and through that, improve the effectiveness of the rehabilitation. One of the biggest challenges in designing VR Rehabilitation exer...

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Autores: Quintana, David, Rodríguez Benítez, Antonio, Sbert, Mateu, Silva Blas, Yolanda, Rufino-Felipe, Ernesto, Boada, Imma
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/24587
Acceso en línea:http://hdl.handle.net/10256/24587
Access Level:acceso abierto
Palabra clave:Realitat virtual
Rehabilitació mèdica
Virtual reality
Medical rehabilitation
Realitat virtual en la medicina
Virtual reality in medicine
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spelling Non-photorealistic rendering as a feedback strategy in virtual reality for rehabilitationQuintana, DavidRodríguez Benítez, AntonioSbert, MateuSilva Blas, YolandaRufino-Felipe, ErnestoBoada, ImmaRealitat virtualRehabilitació mèdicaVirtual realityMedical rehabilitationRealitat virtual en la medicinaVirtual reality in medicineVirtual reality (VR) rehabilitation has been proven to be a very promising method to increase the focus and attention of patients by immersing them in a virtual world, and through that, improve the effectiveness of the rehabilitation. One of the biggest challenges in designing VR Rehabilitation exercises is in choosing feedback strategies that guide the patient and give the appropriate success/failure indicators, without breaking their sense of immersion. A new strategy for feedback is proposed, using non-photorealistic rendering (NPR) to highlight important parts of the exercise the patient needs to focus on and fade out parts of the scene that are not relevant. This strategy is implemented into an authoring tool that allows rehabilitators specifying feedback strategies while creating exercise profiles. The NPR feedback can be configured in many ways, using different NPR schemes for different layers of the exercise environment such as the background environment, the non-interactive exercise objects, and the interactive exercise objects. The main features of the system including the support for universal render pipeline, camera stacking, and stereoscopic rendering are evaluated in a testing scenario. Performance tests regarding memory usage and supported frames per second are also considered. In addition, a group of rehabilitators evaluated the system usability. The proposed system meets all the requirements to apply NPR effect in VR scenarios and solves all the limitations with regard to technical function and image quality. In addition, the system performance has been shown to meet the targets for low-cost hardware. Regarding authoring tool usability rehabilitators agree that is easy to use and a valuable tool for rehabilitation scenarios. NPR schemes can be integrated into VR rehabilitation scenarios achieving the same image quality as non-VR visualizations with only a small impact on the frame rate. NPR schemes are a good visual feedback alternativeOpen Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature32024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpeer-reviewedapplication/pdfhttp://hdl.handle.net/10256/24587Virtual Reality, 2024, vol. 28, art.núm. 60Articles publicats (D-IMAE)Quintana, David Rodríguez Benítez, Antonio Sbert, Mateu Silva Blas, Yolanda Rufino-Felipe, Ernesto Boada, Imma 2024 Non-photorealistic rendering as a feedback strategy in virtual reality for rehabilitation Virtual Reality 28 art.núm. 60reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10055-024-00954-9info:eu-repo/semantics/altIdentifier/issn/1359-4338info:eu-repo/semantics/altIdentifier/eissn/1434-9957Reconeixement 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessoai:recercat.cat:10256/245872026-05-29T05:05:01Z
dc.title.none.fl_str_mv Non-photorealistic rendering as a feedback strategy in virtual reality for rehabilitation
title Non-photorealistic rendering as a feedback strategy in virtual reality for rehabilitation
spellingShingle Non-photorealistic rendering as a feedback strategy in virtual reality for rehabilitation
Quintana, David
Realitat virtual
Rehabilitació mèdica
Virtual reality
Medical rehabilitation
Realitat virtual en la medicina
Virtual reality in medicine
title_short Non-photorealistic rendering as a feedback strategy in virtual reality for rehabilitation
title_full Non-photorealistic rendering as a feedback strategy in virtual reality for rehabilitation
title_fullStr Non-photorealistic rendering as a feedback strategy in virtual reality for rehabilitation
title_full_unstemmed Non-photorealistic rendering as a feedback strategy in virtual reality for rehabilitation
title_sort Non-photorealistic rendering as a feedback strategy in virtual reality for rehabilitation
dc.creator.none.fl_str_mv Quintana, David
Rodríguez Benítez, Antonio
Sbert, Mateu
Silva Blas, Yolanda
Rufino-Felipe, Ernesto
Boada, Imma
author Quintana, David
author_facet Quintana, David
Rodríguez Benítez, Antonio
Sbert, Mateu
Silva Blas, Yolanda
Rufino-Felipe, Ernesto
Boada, Imma
author_role author
author2 Rodríguez Benítez, Antonio
Sbert, Mateu
Silva Blas, Yolanda
Rufino-Felipe, Ernesto
Boada, Imma
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Realitat virtual
Rehabilitació mèdica
Virtual reality
Medical rehabilitation
Realitat virtual en la medicina
Virtual reality in medicine
topic Realitat virtual
Rehabilitació mèdica
Virtual reality
Medical rehabilitation
Realitat virtual en la medicina
Virtual reality in medicine
description Virtual reality (VR) rehabilitation has been proven to be a very promising method to increase the focus and attention of patients by immersing them in a virtual world, and through that, improve the effectiveness of the rehabilitation. One of the biggest challenges in designing VR Rehabilitation exercises is in choosing feedback strategies that guide the patient and give the appropriate success/failure indicators, without breaking their sense of immersion. A new strategy for feedback is proposed, using non-photorealistic rendering (NPR) to highlight important parts of the exercise the patient needs to focus on and fade out parts of the scene that are not relevant. This strategy is implemented into an authoring tool that allows rehabilitators specifying feedback strategies while creating exercise profiles. The NPR feedback can be configured in many ways, using different NPR schemes for different layers of the exercise environment such as the background environment, the non-interactive exercise objects, and the interactive exercise objects. The main features of the system including the support for universal render pipeline, camera stacking, and stereoscopic rendering are evaluated in a testing scenario. Performance tests regarding memory usage and supported frames per second are also considered. In addition, a group of rehabilitators evaluated the system usability. The proposed system meets all the requirements to apply NPR effect in VR scenarios and solves all the limitations with regard to technical function and image quality. In addition, the system performance has been shown to meet the targets for low-cost hardware. Regarding authoring tool usability rehabilitators agree that is easy to use and a valuable tool for rehabilitation scenarios. NPR schemes can be integrated into VR rehabilitation scenarios achieving the same image quality as non-VR visualizations with only a small impact on the frame rate. NPR schemes are a good visual feedback alternative
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
peer-reviewed
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10256/24587
url http://hdl.handle.net/10256/24587
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s10055-024-00954-9
info:eu-repo/semantics/altIdentifier/issn/1359-4338
info:eu-repo/semantics/altIdentifier/eissn/1434-9957
dc.rights.none.fl_str_mv Reconeixement 4.0 Internacional
http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Reconeixement 4.0 Internacional
http://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Virtual Reality, 2024, vol. 28, art.núm. 60
Articles publicats (D-IMAE)
Quintana, David Rodríguez Benítez, Antonio Sbert, Mateu Silva Blas, Yolanda Rufino-Felipe, Ernesto Boada, Imma 2024 Non-photorealistic rendering as a feedback strategy in virtual reality for rehabilitation Virtual Reality 28 art.núm. 60
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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