Validation of a photogrammetric approach for the objective study of early bowed instruments
Abstract Some early violins have been reduced during their history to fit imposed morphological standards, while more recent ones have been built directly to these standards. We propose an objective photogrammetric approach to differentiate between a reduced and an unreduced instrument, whereby a th...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-08-01
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| Series: | Heritage Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40494-023-00979-4 |
| _version_ | 1827709022898225152 |
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| author | Philémon Beghin Anne-Emmanuelle Ceulemans Paul Fisette François Glineur |
| author_facet | Philémon Beghin Anne-Emmanuelle Ceulemans Paul Fisette François Glineur |
| author_sort | Philémon Beghin |
| collection | DOAJ |
| description | Abstract Some early violins have been reduced during their history to fit imposed morphological standards, while more recent ones have been built directly to these standards. We propose an objective photogrammetric approach to differentiate between a reduced and an unreduced instrument, whereby a three-dimensional mesh is studied geometrically by examining 2D slices. Our contribution is twofold. First, we validate the quality of the photogrammetric mesh through a comparison with reference images obtained by medical imaging, and conclude that a sub-millimetre accuracy is achieved. Then, we show how quantitative and qualitative features such as contour lines, channel of minima and a measure of asymmetry between the upper and lower surfaces of a violin can be automatically extracted from the validated photogrammetric meshes, allowing to successfully highlight differences between instruments. Graphical Abstract |
| first_indexed | 2024-03-10T17:15:13Z |
| format | Article |
| id | doaj.art-61ec4ab321164b7a92f74c238e3126ad |
| institution | Directory Open Access Journal |
| issn | 2050-7445 |
| language | English |
| last_indexed | 2024-03-10T17:15:13Z |
| publishDate | 2023-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Heritage Science |
| spelling | doaj.art-61ec4ab321164b7a92f74c238e3126ad2023-11-20T10:31:25ZengSpringerOpenHeritage Science2050-74452023-08-0111111910.1186/s40494-023-00979-4Validation of a photogrammetric approach for the objective study of early bowed instrumentsPhilémon Beghin0Anne-Emmanuelle Ceulemans1Paul Fisette2François Glineur3UCLouvainUCLouvainUCLouvainUCLouvainAbstract Some early violins have been reduced during their history to fit imposed morphological standards, while more recent ones have been built directly to these standards. We propose an objective photogrammetric approach to differentiate between a reduced and an unreduced instrument, whereby a three-dimensional mesh is studied geometrically by examining 2D slices. Our contribution is twofold. First, we validate the quality of the photogrammetric mesh through a comparison with reference images obtained by medical imaging, and conclude that a sub-millimetre accuracy is achieved. Then, we show how quantitative and qualitative features such as contour lines, channel of minima and a measure of asymmetry between the upper and lower surfaces of a violin can be automatically extracted from the validated photogrammetric meshes, allowing to successfully highlight differences between instruments. Graphical Abstracthttps://doi.org/10.1186/s40494-023-00979-4PhotogrammetryViolin reductionGeometric analysisCT scansError assessmentPoint cloud registration |
| spellingShingle | Philémon Beghin Anne-Emmanuelle Ceulemans Paul Fisette François Glineur Validation of a photogrammetric approach for the objective study of early bowed instruments Heritage Science Photogrammetry Violin reduction Geometric analysis CT scans Error assessment Point cloud registration |
| title | Validation of a photogrammetric approach for the objective study of early bowed instruments |
| title_full | Validation of a photogrammetric approach for the objective study of early bowed instruments |
| title_fullStr | Validation of a photogrammetric approach for the objective study of early bowed instruments |
| title_full_unstemmed | Validation of a photogrammetric approach for the objective study of early bowed instruments |
| title_short | Validation of a photogrammetric approach for the objective study of early bowed instruments |
| title_sort | validation of a photogrammetric approach for the objective study of early bowed instruments |
| topic | Photogrammetry Violin reduction Geometric analysis CT scans Error assessment Point cloud registration |
| url | https://doi.org/10.1186/s40494-023-00979-4 |
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