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Erschienen in:
Implementation and Usage Scenarios of a Participatory Platform for Cultural Environments Kapitel lesen Erstes Kapitel lesen

2016 | OriginalPaper | Buchkapitel

Surveying Illusory Architectures Painted on Vaulted Surfaces

verfasst von : Matteo Flavio Mancini, Marta Salvatore

Erschienen in: Digital Heritage. Progress in Cultural Heritage: Documentation, Preservation, and Protection

Verlag: Springer International Publishing

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Abstract

This paper addresses the problem of surveying illusory architectures painted on vaulted surfaces. The survey of a quadratura, or a painting in general, requires recording the metric and chromatic characteristics of the subject and the typical characteristics of the painted surfaces, such as soot, engravings, and giornate. Our goals are the proposal of an “optimum” quality standard for surveying curved painted surfaces and testing a method to acquire and render the data that allows those standards to be met. The test, conducted on the corridor of Saint Ignatius of Loyola rooms in Rome depicted by Andrea Pozzo, shows how the quality of the texture can be measured in terms of overall sharpness and average resolution. It is also shown how it is possible to identify some reference standards that allow the quality of the final result to be determined already in the photography phase of the project.

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Vorheriges Kapitel Researching Knowledge Concerns in Virtual Historical Architecture
Nächstes Kapitel The Application of Photogrammetry on Digitization and Promotion for Monuments and Temples in Taiwan - Taking Chua Family Ancestral Temple as an Example
Fußnoten
1
We are currently testing this methodology on similar paintings, such as on the vault of the Church of St. Ignatius and that on the hall of Palazzo Barberini (Rome), to confirm its validity.
 
2
In this experimentation we chose to adopt one of the currently most popular photogrammetric software, Agisoft Photoscan 1.1, but the considerations of this paper are still valid by using any other similar software.
 
3
The procedure is also advantageous if viewed in light of the time and cost entailed in the photography and processing phases, which make this technology a shared standard for quick survey campaigns.
 
4
The resolution of cameras installed on today’s commercially available scanners guarantee a maximum of 4 megapixels on average, compared to the 18 megapixels available on average for a full-frame professional camera.
 
5
The calculations made by the software are statistical, which leads to variations of the results even when starting with identical datasets.
 
6
A UV texture associates a raster image to each triangle of a mesh surface developed on the plane. Since the meshes are irregular polyhedrons, the constituent polygons tend to overlap in plane development. To avoid this superposition in the development phase, the surface is divided into multiple parts, and the developed polygons are situated in order to optimize the raster space available. The developed mesh obviously does not cover the entire square surface of the texture.
 
Literatur
1.
Migliari, R., Fasolo, M., Baglioni, L., Salvatore, M., Romor, J., Mancini, M.F.: Architectural perspectives survey. In: Ioannides, M., Magnenat-Thalmann, N., Fink, E., Žarnić, R., Yen, A.-Y., Quak, E. (eds.) EuroMed 2014. LNCS, vol. 8740, pp. 463–472. Springer, Heidelberg (2014). doi:10.​1007/​978-3-319-13695-0_​45CrossRef
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Guidi, G., Remondino, F.: 3D modelling from real data. In: Alexandru, C. (ed.) Modelling and Simulation in Engineering. InTech (2012)
3.
Luhmann, T., Robson, S., Kyle, S., Harley, I.: Close Range Photogrammetry: Principles, Techniques and Application, p. 528. Whittles Publishing, Dunbeath (2007)
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Nguyen, H.M., Wünsche, B., Delmas, P., Lutteroth, C.: 3D models from the black box: investigating the current state of image-based modeling. In: Proceedings of the 20th International Conference on Computer Graphics, Visualization and Computer Vision (WSCG 2012), Pilsen, Czech Republic, 25–28, June, pp. 115–123 (2012)
5.
Baglioni, L., Migliari, R., Salvatore, M.: Calcolo della risoluzione delle riprese panoramiche delle quadrature piane. In: Valenti, G.M. (ed.) Prospettive Architettoniche: conservazione digitale, divulgazione e studio, pp. 809–816. Sapienza Università Editrice, Roma (2014)
6.
Baglioni, L., Fasolo, M.: Riflessioni sull’illuminazione artificiale di superfici con quadrature. In: Valenti, G.M. (ed.) Prospettive Architettoniche: conservazione digitale, divulgazione e studio, pp. 679–684. Sapienza Università Editrice, Roma (2014)
7.
Chiabrando, F., Lingua, A., Noardo, F., Spanò, A.: 3D modelling of trompe l’oeil decorated vaults using dense matching techniques. Isprs Ann. Photogrammetry Remote Sens. Spat. Inf. Sci. II, 97–104 (2014)CrossRef
Metadaten
Titel
Surveying Illusory Architectures Painted on Vaulted Surfaces
verfasst von
Matteo Flavio Mancini
Marta Salvatore
Copyright-Jahr
2016
Buch
Digital Heritage. Progress in Cultural Heritage: Documentation, Preservation, and Protection

Print ISBN: 978-3-319-48495-2

Electronic ISBN: 978-3-319-48496-9

Copyright-Jahr: 2016

DOI
https://doi.org/10.1007/978-3-319-48496-9_30

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