Spatio-temporal alignment of pedobarographic image sequences

Detalhes bibliográficos
Autor(a) principal: Oliveira, Francisco
Data de Publicação: 2011
Outros Autores: Sousa, Andreia S. P., Santos, Rubim, Tavares, João Manuel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.22/1238
Resumo: O documento em anexo encontra-se na versão post-print (versão corrigida pelo editor).
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spelling Spatio-temporal alignment of pedobarographic image sequencesBiomechanicsGeometric and temporal transformationsImage registrationIntra-subject alignmentPlantar pressure imagesO documento em anexo encontra-se na versão post-print (versão corrigida pelo editor).This paper presents a methodology to align plantar pressure image sequences simultaneously in time and space. The spatial position and orientation of a foot in a sequence are changed to match the foot represented in a second sequence. Simultaneously with the spatial alignment, the temporal scale of the first sequence is transformed with the aim of synchronizing the two input footsteps. Consequently, the spatial correspondence of the foot regions along the sequences as well as the temporal synchronizing is automatically attained, making the study easier and more straightforward. In terms of spatial alignment, the methodology can use one of four possible geometric transformation models: rigid, similarity, affine or projective. In the temporal alignment, a polynomial transformation up to the 4th degree can be adopted in order to model linear and curved time behaviors. Suitable geometric and temporal transformations are found by minimizing the mean squared error (MSE) between the input sequences. The methodology was tested on a set of real image sequences acquired from a common pedobarographic device. When used in experimental cases generated by applying geometric and temporal control transformations, the methodology revealed high accuracy. Additionally, the intra-subject alignment tests from real plantar pressure image sequences showed that the curved temporal models produced better MSE results (p<0.001) than the linear temporal model. This paper represents an important step forward in the alignment of pedobarographic image data, since previous methods can only be applied on static images.SpringerRepositório Científico do Instituto Politécnico do PortoOliveira, FranciscoSousa, Andreia S. P.Santos, RubimTavares, João Manuel2013-04-11T13:17:09Z20112011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/1238eng0140-011810.1007/s11517-011-0771-xinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-13T12:40:33Zoai:recipp.ipp.pt:10400.22/1238Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:22:23.251979Repositório 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 Spatio-temporal alignment of pedobarographic image sequences
title Spatio-temporal alignment of pedobarographic image sequences
spellingShingle Spatio-temporal alignment of pedobarographic image sequences
Oliveira, Francisco
Biomechanics
Geometric and temporal transformations
Image registration
Intra-subject alignment
Plantar pressure images
title_short Spatio-temporal alignment of pedobarographic image sequences
title_full Spatio-temporal alignment of pedobarographic image sequences
title_fullStr Spatio-temporal alignment of pedobarographic image sequences
title_full_unstemmed Spatio-temporal alignment of pedobarographic image sequences
title_sort Spatio-temporal alignment of pedobarographic image sequences
author Oliveira, Francisco
author_facet Oliveira, Francisco
Sousa, Andreia S. P.
Santos, Rubim
Tavares, João Manuel
author_role author
author2 Sousa, Andreia S. P.
Santos, Rubim
Tavares, João Manuel
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico do Porto
dc.contributor.author.fl_str_mv Oliveira, Francisco
Sousa, Andreia S. P.
Santos, Rubim
Tavares, João Manuel
dc.subject.por.fl_str_mv Biomechanics
Geometric and temporal transformations
Image registration
Intra-subject alignment
Plantar pressure images
topic Biomechanics
Geometric and temporal transformations
Image registration
Intra-subject alignment
Plantar pressure images
description O documento em anexo encontra-se na versão post-print (versão corrigida pelo editor).
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-01-01T00:00:00Z
2013-04-11T13:17:09Z
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 http://hdl.handle.net/10400.22/1238
url http://hdl.handle.net/10400.22/1238
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0140-0118
10.1007/s11517-011-0771-x
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str 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
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