Abstract
Abstract. Technological advances in the field of information acquisition have led to the development of various techniques regarding building documentation. Among the proposed methods, acquisition of data without being in direct physical contact with the features under investigation could provide valuable information especially in the case of buildings or areas presenting a high cultural value. Satellite or ground-based remote sensing techniques could contribute to the protection, conservation and restoration of cultural heritage buildings, as well as in the interpretation and monitoring of their surrounding area. The increasing interest in the generation of 3D facade models for documentation of the built environment has made laser scanning a valuable tool for 3D data collection. Through the generation of dense 3D point clouds, digitization of building facades could be achieved, offering data that could be used for further processing. Satellite imagery could also contribute to this direction, extending the monitoring possibilities of the buildings’ surrounding area or even providing information regarding change detection in large-scale cultural landscapes. This paper presents the study of a mansion house built in the middle of the 18th century in northwestern Greece, using terrestrial laser scanning techniques for facade documentation, as well as satellite imagery for monitoring and interpretation purposes. The scanning process included multiple external scans of the main facade of the building which were registered using artificial targets in order to form a single colored 3D model. Further process resulted in a model that offers measurement possibilities valuable to future plans and designs for preservation and restoration. Digital processing of satellite imagery provided the extraction of additional enhanced data regarding the physiognomy of the surrounding area.
Highlights
Building documentation is a powerful tool that could contribute to a variety of engineering issues, including among others urban planning, identification and interpretation of buildings, monitoring and management of sites and cultural landscapes, as well as protection, conservation and restoration of cultural heritage (Yang et al, 2014; Haddad, 2011; Núñez Andrés et al, 2012)
Technological advances regarding information acquisition of buildings presenting a cultural value have led to the development of various techniques such as topographic, photogrammetric and ground-based remote sensing techniques or even their combination (Alshawabkeh, 2006; Tapete et al, 2013)
A unified point cloud was obtained through the control points, the coordinates of which guided the registration of the four adjacent point clouds
Summary
Building documentation is a powerful tool that could contribute to a variety of engineering issues, including among others urban planning, identification and interpretation of buildings, monitoring and management of sites and cultural landscapes, as well as protection, conservation and restoration of cultural heritage (Yang et al, 2014; Haddad, 2011; Núñez Andrés et al, 2012). Technological advances regarding information acquisition of buildings presenting a cultural value have led to the development of various techniques such as topographic, photogrammetric and ground-based remote sensing techniques or even their combination (Alshawabkeh, 2006; Tapete et al, 2013). Remote sensing techniques may contribute to monitoring and interpretation of the site, while a combination of other conventional techniques (topographic surveys and measurements, photogrammetric methodologies) could be used in structural monitoring (Tournas et al, 2010). Satellite imagery could provide complementary information, yet necessary in terms of monitoring possibilities of the surrounding area or change detection in cultural landscapes (Karagianni, 2019)
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