Latest revision as of 14:19, 30 November 2021

Abstract

Several years of experience in heritage documentation have given a background to develop methods of digital photogrammetry and mapping. The outcome is the development of a mapping software over a period of 20 years.Main features of the software are image rectification, vector based mapping, quantity survey and data analysis. In Germany, it is mainly used in the field of stone conservation. Small projects can be processed as a single mapping project, whilst complex projects like a cathedral can be organised as a hierarchical project, with several mapping projects for individual object parts. Each mapped element can be connected with additional attributes. This allows visual analysis of mapping activities, quantities and attributes – like in a geographical information system (GIS) for conservators. Tools and procedures for efficient mapping are developed in close cooperation with conservators from different fields. It is shown how large stone objects can be managed efficiently with an example project from the field of natural stone. This applies to the overall data acquisition and data evaluation for condition analysis, conservation planning, accounting documentation and monitoring. Due to the advances in the fields 3D laser scanning and digital photogrammetry within the past 5 years the R&D project „PROQUATO“ (2016 – 2018) was initiated by fokus GmbH Leipzig with the institute for photogrammetry and remote sensing of TU Dresden and Scan 3D GmbH, Berlin. Project results for efficient data processing and functions for 3D mapping will be presented. Current developments deal with the fast processing of point clouds scanned by laser scanner for the use as reference for image rectification, deformation analysis and creation of section lines.

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References

[1] Siedler, G. and Sacher, G.: Photogrammetrische Auswertung historischer Fotografien und Messbilder. In: Führerauftrag Monumentalmalerei, Veröffentlichungen des ZIKG, Band XVIII, 2006, Böhlau Verlag GmbH & Cie, S.189-198.

[2] Vetter, S. and Siedler, G., Automated 3D-object documentation on the base of an image set. 13. International CIPA Symposium, Prag (Tschechische Republik), 2011

[3] Siedler, G. and Vetter S., Modern Methods of documentation – Photogrammetric evaluation of historic images. ICOM CC - Interim Meeting of the Wood, Furniture, and Lacquer & the Sculpture, Polychromy, and Architectural Decorations Working Groups in Potsdam, Germany, 2016

[4] Siedler, G. and Vetter S., Qualitätskriterien bei der Ausschreibung von photogrammetrischen Leistungen. Natursteinsanierung Stuttgart 2018 – Neue Natursteinrestaurierungsergebnisse und messtechnische Erfassungen sowie Sanierungsbeispiele, Stuttgart, Germany, 2018

[5] Luhmann, T., Nahbereichsphotogrammetrie – Grundlagen, Methoden und Anwendungen. Verlag für Bauwesen, Berlin, Germany, 1978

[6] W. Pietschner, J. Regensburger, K. Rüger, Photogrammetrie. Verfahren und Geräte. Herbert Wichmann Verlag, Heidelberg, Germany, 2003

[7] Brumana R. and Galeazzo, G.; St. Marcus’ Basilica in Venice. An apply of image projection on a dome. XVII ISPRS Congress Technical Commission V: Close-Range Photogrammetry and Machine Vision, page 786-793, Washington, D.C., USA, 1992

[8] Stephani, M.; Object Modelling and Visualization in Architecture. XVII ISPRS Congress Technical Commission V: Close-Range Photogrammetry and Machine Vision, page 821- 824, Washington, D.C., USA, 1992