INTEGRATIVE IRT FOR DOCUMENTATION AND INTERPRETATION OF ARCHAEOLOGICAL STRUCTURES

<p>The documentation of built heritage involves tangible and intangible features. Several morphological and metric aspects of architectural structures are acquired throughout a massive data capture system, such as the Terrestrial Laser Scanner (TLS) and the Structure from Motion (SfM) techniqu...

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Main Authors: M. Griffo, P. Cimadomo, S. Menconero
Format: Article
Language:English
Published: Copernicus Publications 2019-08-01
Series:The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Online Access:https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W15/533/2019/isprs-archives-XLII-2-W15-533-2019.pdf
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author M. Griffo
P. Cimadomo
S. Menconero
author_facet M. Griffo
P. Cimadomo
S. Menconero
author_sort M. Griffo
collection DOAJ
description <p>The documentation of built heritage involves tangible and intangible features. Several morphological and metric aspects of architectural structures are acquired throughout a massive data capture system, such as the Terrestrial Laser Scanner (TLS) and the Structure from Motion (SfM) technique. They produce models that give information about the skin of architectural organism. Infrared Thermography (IRT) is one of the techniques used to investigate what is beyond the external layer. This technology is particularly significant in the diagnostics and conservation of the built heritage. In archaeology, the integration of data acquired through different sensors improves the analysis and the interpretation of findings that are incomplete or transformed.</p> <p>Starting from a topographic and photogrammetric survey, the procedure here proposed aims to combine the bidimensional IRT data together with the 3D point cloud. This system helps to overcome the Field of View (FoV) of each IRT image and provides a three-dimensional reading of the thermal behaviour of the object. This approach is based on the geometric constraints of the pair of RGB-IR images coming from two different sensors mounted inside a bi-camera commercial device. Knowing the approximate distance between the two sensors, and making the necessary simplifications allowed by the low resolution of the thermal sensor, we projected the colour of the IR images to the RGB point cloud. The procedure was applied is the so-called Nymphaeum of Egeria, an archaeological structure in the Caffarella Park (Rome, Italy), which is currently part of the Appia Antica Regional Park.</p>
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spelling doaj.art-a5c8e7df02014703a13d1172a11f53952022-12-21T20:30:36ZengCopernicus PublicationsThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences1682-17502194-90342019-08-01XLII-2-W1553353910.5194/isprs-archives-XLII-2-W15-533-2019INTEGRATIVE IRT FOR DOCUMENTATION AND INTERPRETATION OF ARCHAEOLOGICAL STRUCTURESM. Griffo0P. Cimadomo1S. Menconero2Dept. of History, Representation and Restoration of Architecture, Sapienza University of Rome, Piazza Borghese 9, Roma, ItalyDept. of Humanities, University of Naples Federico II, Via Nuova Marina 33, Napoli, ItalyDept. of History, Representation and Restoration of Architecture, Sapienza University of Rome, Piazza Borghese 9, Roma, Italy<p>The documentation of built heritage involves tangible and intangible features. Several morphological and metric aspects of architectural structures are acquired throughout a massive data capture system, such as the Terrestrial Laser Scanner (TLS) and the Structure from Motion (SfM) technique. They produce models that give information about the skin of architectural organism. Infrared Thermography (IRT) is one of the techniques used to investigate what is beyond the external layer. This technology is particularly significant in the diagnostics and conservation of the built heritage. In archaeology, the integration of data acquired through different sensors improves the analysis and the interpretation of findings that are incomplete or transformed.</p> <p>Starting from a topographic and photogrammetric survey, the procedure here proposed aims to combine the bidimensional IRT data together with the 3D point cloud. This system helps to overcome the Field of View (FoV) of each IRT image and provides a three-dimensional reading of the thermal behaviour of the object. This approach is based on the geometric constraints of the pair of RGB-IR images coming from two different sensors mounted inside a bi-camera commercial device. Knowing the approximate distance between the two sensors, and making the necessary simplifications allowed by the low resolution of the thermal sensor, we projected the colour of the IR images to the RGB point cloud. The procedure was applied is the so-called Nymphaeum of Egeria, an archaeological structure in the Caffarella Park (Rome, Italy), which is currently part of the Appia Antica Regional Park.</p>https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W15/533/2019/isprs-archives-XLII-2-W15-533-2019.pdf
spellingShingle M. Griffo
P. Cimadomo
S. Menconero
INTEGRATIVE IRT FOR DOCUMENTATION AND INTERPRETATION OF ARCHAEOLOGICAL STRUCTURES
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
title INTEGRATIVE IRT FOR DOCUMENTATION AND INTERPRETATION OF ARCHAEOLOGICAL STRUCTURES
title_full INTEGRATIVE IRT FOR DOCUMENTATION AND INTERPRETATION OF ARCHAEOLOGICAL STRUCTURES
title_fullStr INTEGRATIVE IRT FOR DOCUMENTATION AND INTERPRETATION OF ARCHAEOLOGICAL STRUCTURES
title_full_unstemmed INTEGRATIVE IRT FOR DOCUMENTATION AND INTERPRETATION OF ARCHAEOLOGICAL STRUCTURES
title_short INTEGRATIVE IRT FOR DOCUMENTATION AND INTERPRETATION OF ARCHAEOLOGICAL STRUCTURES
title_sort integrative irt for documentation and interpretation of archaeological structures
url https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W15/533/2019/isprs-archives-XLII-2-W15-533-2019.pdf
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AT smenconero integrativeirtfordocumentationandinterpretationofarchaeologicalstructures