Accurate infrared tracking system for immersive virtual environments
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://ciencia.iscte-iul.pt/id/ci-pub-24328 http://hdl.handle.net/10071/13658 |
Resumo: | In large-scale immersive virtual reality VR environments, such as a CAVE, one of the most common problems is tracking the position of the user's head while he or she is immersed in this environment to reflect perspective changes in the synthetic stereoscopic images. In this paper, the authors describe the theoretical foundations and engineering approach adopted in the development of an infrared-optical tracking system designed for large scale immersive Virtual Environments VE or Augmented Reality AR settings. The system is capable of tracking independent retro-reflective markers arranged in a 3D structure in real time, recovering all possible 6DOF. These artefacts can be adjusted to the user's stereo glasses to track his or her head while immersed or used as a 3D input device for rich human-computer interaction HCI. The hardware configuration consists of 4 shutter-synchronized cameras attached with band-pass infrared filters and illuminated by infrared array-emitters. Pilot lab results have shown a latency of 40 ms when simultaneously tracking the pose of two artefacts with 4 infrared markers, achieving a frame-rate of 24.80 fps and showing a mean accuracy of 0.93mm/0.51ᄎ and a mean precision of 0.19mm/0.04ᄎ, respectively, in overall translation/rotation, fulfilling the requirements initially defined. |
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Accurate infrared tracking system for immersive virtual environmentsThree-dimensional graphics and realismDigitization and image captureSegmentationScene analysisMultimedia information systemsUser interfacesIn large-scale immersive virtual reality VR environments, such as a CAVE, one of the most common problems is tracking the position of the user's head while he or she is immersed in this environment to reflect perspective changes in the synthetic stereoscopic images. In this paper, the authors describe the theoretical foundations and engineering approach adopted in the development of an infrared-optical tracking system designed for large scale immersive Virtual Environments VE or Augmented Reality AR settings. The system is capable of tracking independent retro-reflective markers arranged in a 3D structure in real time, recovering all possible 6DOF. These artefacts can be adjusted to the user's stereo glasses to track his or her head while immersed or used as a 3D input device for rich human-computer interaction HCI. The hardware configuration consists of 4 shutter-synchronized cameras attached with band-pass infrared filters and illuminated by infrared array-emitters. Pilot lab results have shown a latency of 40 ms when simultaneously tracking the pose of two artefacts with 4 infrared markers, achieving a frame-rate of 24.80 fps and showing a mean accuracy of 0.93mm/0.51ᄎ and a mean precision of 0.19mm/0.04ᄎ, respectively, in overall translation/rotation, fulfilling the requirements initially defined.IGI Global2017-06-01T10:02:40Z2011-01-01T00:00:00Z20112017-06-01T10:02:29Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://ciencia.iscte-iul.pt/id/ci-pub-24328http://hdl.handle.net/10071/13658eng1947-311710.4018/jcicg.2011070104Gaspar, F.Bastos, R.Dias, M. S.info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:30:43Zoai:repositorio.iscte-iul.pt:10071/13658Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:13:47.696505Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Accurate infrared tracking system for immersive virtual environments |
title |
Accurate infrared tracking system for immersive virtual environments |
spellingShingle |
Accurate infrared tracking system for immersive virtual environments Gaspar, F. Three-dimensional graphics and realism Digitization and image capture Segmentation Scene analysis Multimedia information systems User interfaces |
title_short |
Accurate infrared tracking system for immersive virtual environments |
title_full |
Accurate infrared tracking system for immersive virtual environments |
title_fullStr |
Accurate infrared tracking system for immersive virtual environments |
title_full_unstemmed |
Accurate infrared tracking system for immersive virtual environments |
title_sort |
Accurate infrared tracking system for immersive virtual environments |
author |
Gaspar, F. |
author_facet |
Gaspar, F. Bastos, R. Dias, M. S. |
author_role |
author |
author2 |
Bastos, R. Dias, M. S. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Gaspar, F. Bastos, R. Dias, M. S. |
dc.subject.por.fl_str_mv |
Three-dimensional graphics and realism Digitization and image capture Segmentation Scene analysis Multimedia information systems User interfaces |
topic |
Three-dimensional graphics and realism Digitization and image capture Segmentation Scene analysis Multimedia information systems User interfaces |
description |
In large-scale immersive virtual reality VR environments, such as a CAVE, one of the most common problems is tracking the position of the user's head while he or she is immersed in this environment to reflect perspective changes in the synthetic stereoscopic images. In this paper, the authors describe the theoretical foundations and engineering approach adopted in the development of an infrared-optical tracking system designed for large scale immersive Virtual Environments VE or Augmented Reality AR settings. The system is capable of tracking independent retro-reflective markers arranged in a 3D structure in real time, recovering all possible 6DOF. These artefacts can be adjusted to the user's stereo glasses to track his or her head while immersed or used as a 3D input device for rich human-computer interaction HCI. The hardware configuration consists of 4 shutter-synchronized cameras attached with band-pass infrared filters and illuminated by infrared array-emitters. Pilot lab results have shown a latency of 40 ms when simultaneously tracking the pose of two artefacts with 4 infrared markers, achieving a frame-rate of 24.80 fps and showing a mean accuracy of 0.93mm/0.51ᄎ and a mean precision of 0.19mm/0.04ᄎ, respectively, in overall translation/rotation, fulfilling the requirements initially defined. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01T00:00:00Z 2011 2017-06-01T10:02:40Z 2017-06-01T10:02:29Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ciencia.iscte-iul.pt/id/ci-pub-24328 http://hdl.handle.net/10071/13658 |
url |
https://ciencia.iscte-iul.pt/id/ci-pub-24328 http://hdl.handle.net/10071/13658 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1947-3117 10.4018/jcicg.2011070104 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/embargoedAccess |
eu_rights_str_mv |
embargoedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
IGI Global |
publisher.none.fl_str_mv |
IGI Global |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799134694856458240 |