Multispectral imaging for the documentation of graffiti in an urban environment

[EN] Multispectral imaging (MSI) is increasingly used for the documentation and analysis of cultural heritage. It provides conservators a powerful non-destructive technique (NDT) and non-contact tool for detecting damage, hidden features and material-specific characteristics. Hereby multispectral do...

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Detalles Bibliográficos
Autores: Rahrig, Max, Lerma, José Luis|||0000-0001-9443-9214
Tipo de recurso: capítulo de libro
Fecha de publicación:2023
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/192192
Acceso en línea:https://riunet.upv.es/handle/10251/192192
Access Level:acceso abierto
Palabra clave:Multispectral imaging (MSI)
Non destructive techniques
Cultural heritage
Preventive conservation
Multispectral/multiband imaging
Wall paintings
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spelling Multispectral imaging for the documentation of graffiti in an urban environmentRahrig, MaxLerma, José Luis|||0000-0001-9443-9214Multispectral imaging (MSI)Non destructive techniquesCultural heritagePreventive conservationMultispectral/multiband imagingWall paintings[EN] Multispectral imaging (MSI) is increasingly used for the documentation and analysis of cultural heritage. It provides conservators a powerful non-destructive technique (NDT) and non-contact tool for detecting damage, hidden features and material-specific characteristics. Hereby multispectral documentation of wall paintings in an urban environment poses special challenges for the art expert. For example, these are often large works of art located outdoors on building façades. Excitation with artificial light in well-defined spectral ranges, as should ideally be the case in MSI, is therefore often not possible. In the following, low-cost variants of MSI (ultraviolet reflectography, visible light imaging and infrared reflectography) in combination with 3D photogrammetry and statistical methods for analysing image data are tested and discussed. Hereby, a metrically correct, large-scale documentation of wall paintings with accurate superimposed images of different spectral ranges will be generated by linking the MSI data in a photogrammetric image cluster to create individual texture maps for each spectral band. Furthermore, Principal Component Analysis (PCA) is used to extract additional information from the MSI data. The case studies are located on the campus of the Universitat Politècnica de València. This study was carried out within the project “REVIEW– REVealing hIddEn Wall paintings” and has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 101032333Editorial Universitat Politècnica de ValènciaDepartamento de Ingeniería Cartográfica Geodesia y FotogrametríaEscuela Técnica Superior de Ingeniería Geodésica, Cartográfica y TopográficaEuropean CommissionRepositorio Institucional de la Universitat Politècnica de València Riunet20232023-01-27book parthttp://purl.org/coar/resource_type/c_3248VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/bookPartapplication/pdfhttps://riunet.upv.es/handle/10251/192192reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengEuropean Commission https://doi.org/10.13039/501100000780 H2020 101032333 REVealing hIddEn Wall paintingsopen accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento - No comercial - Compartir igual (by-nc-sa) http://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/1921922026-06-13T07:49:27Z
dc.title.none.fl_str_mv Multispectral imaging for the documentation of graffiti in an urban environment
title Multispectral imaging for the documentation of graffiti in an urban environment
spellingShingle Multispectral imaging for the documentation of graffiti in an urban environment
Rahrig, Max
Multispectral imaging (MSI)
Non destructive techniques
Cultural heritage
Preventive conservation
Multispectral/multiband imaging
Wall paintings
title_short Multispectral imaging for the documentation of graffiti in an urban environment
title_full Multispectral imaging for the documentation of graffiti in an urban environment
title_fullStr Multispectral imaging for the documentation of graffiti in an urban environment
title_full_unstemmed Multispectral imaging for the documentation of graffiti in an urban environment
title_sort Multispectral imaging for the documentation of graffiti in an urban environment
dc.creator.none.fl_str_mv Rahrig, Max
Lerma, José Luis|||0000-0001-9443-9214
author Rahrig, Max
author_facet Rahrig, Max
Lerma, José Luis|||0000-0001-9443-9214
author_role author
author2 Lerma, José Luis|||0000-0001-9443-9214
author2_role author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Cartográfica Geodesia y Fotogrametría
Escuela Técnica Superior de Ingeniería Geodésica, Cartográfica y Topográfica
European Commission
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Multispectral imaging (MSI)
Non destructive techniques
Cultural heritage
Preventive conservation
Multispectral/multiband imaging
Wall paintings
topic Multispectral imaging (MSI)
Non destructive techniques
Cultural heritage
Preventive conservation
Multispectral/multiband imaging
Wall paintings
description [EN] Multispectral imaging (MSI) is increasingly used for the documentation and analysis of cultural heritage. It provides conservators a powerful non-destructive technique (NDT) and non-contact tool for detecting damage, hidden features and material-specific characteristics. Hereby multispectral documentation of wall paintings in an urban environment poses special challenges for the art expert. For example, these are often large works of art located outdoors on building façades. Excitation with artificial light in well-defined spectral ranges, as should ideally be the case in MSI, is therefore often not possible. In the following, low-cost variants of MSI (ultraviolet reflectography, visible light imaging and infrared reflectography) in combination with 3D photogrammetry and statistical methods for analysing image data are tested and discussed. Hereby, a metrically correct, large-scale documentation of wall paintings with accurate superimposed images of different spectral ranges will be generated by linking the MSI data in a photogrammetric image cluster to create individual texture maps for each spectral band. Furthermore, Principal Component Analysis (PCA) is used to extract additional information from the MSI data. The case studies are located on the campus of the Universitat Politècnica de València. 
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-01-27
dc.type.none.fl_str_mv book part
http://purl.org/coar/resource_type/c_3248
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/bookPart
format bookPart
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/192192
url https://riunet.upv.es/handle/10251/192192
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission https://doi.org/10.13039/501100000780 H2020 101032333 REVealing hIddEn Wall paintings
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Compartir igual (by-nc-sa)
http://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Compartir igual (by-nc-sa)
http://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Editorial Universitat Politècnica de València
publisher.none.fl_str_mv Editorial Universitat Politècnica de València
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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