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...
| Authors: | ; |
|---|---|
| Format: | Book chapter |
| Publication date: | 2023 |
| Country: | España |
| Institution: | Universitat Politècnica de València (UPV) |
| Repository: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Language: | English |
| OAI Identifier: | oai:riunet.upv.es:10251/192192 |
| Online Access: | https://riunet.upv.es/handle/10251/192192 |
| Access Level: | Open access |
| Keyword: | Multispectral imaging (MSI) Non destructive techniques Cultural heritage Preventive conservation Multispectral/multiband imaging Wall paintings |
| _version_ | 1878740848423731200 |
|---|---|
| author | Rahrig, Max |
| author2 | Lerma, José Luis|||0000-0001-9443-9214 |
| author2_role | author |
| author_browse | Lerma, José Luis|||0000-0001-9443-9214 Rahrig, Max |
| author_facet | Rahrig, Max Lerma, José Luis|||0000-0001-9443-9214 |
| author_role | author |
| collection | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| 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. |
| eu_rights_str_mv | openAccess |
| format | bookPart |
| id | ES_da76875cd945a4eccce920abd527abd2 |
| institution | Universitat Politècnica de València (UPV) |
| instname_str | Universitat Politècnica de València (UPV) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:riunet.upv.es:10251/192192 |
| publishDate | 2023 |
| publishDateSort | 2023 |
| publisher | Editorial Universitat Politècnica de València |
| publisherStr | Editorial Universitat Politècnica de València |
| reponame_str | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| spelling | Multispectral imaging for the documentation of graffiti in an urban environment Rahrig, Max Lerma, José Luis|||0000-0001-9443-9214 Multispectral imaging (MSI) Non destructive techniques Cultural heritage Preventive conservation Multispectral/multiband imaging Wall 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 101032333 Editorial Universitat Politècnica de València https://riunet.upv.es/handle/10251/192192 |
| 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 | 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_short | Multispectral imaging for the documentation of graffiti in an urban environment |
| title_sort | Multispectral imaging for the documentation of graffiti in an urban environment |
| topic | Multispectral imaging (MSI) Non destructive techniques Cultural heritage Preventive conservation Multispectral/multiband imaging Wall paintings |
| topic_facet | Multispectral imaging (MSI) Non destructive techniques Cultural heritage Preventive conservation Multispectral/multiband imaging Wall paintings |
| url | https://riunet.upv.es/handle/10251/192192 |