Journal of Architectural Conservation
Volume 17, Issue 2, July 2011
Combined Photogrammetric Techniques and Computer Vision: 2D-3D Recordings of Gharissa, Jordan
Yahya Alshawabkeh, Khaled Douglas, Mohammad Matarya and Bilal Khrisat
Paper Summary
Traditional techniques for recording and modeling historical buildings using surveying instruments and CAD are tedious and time-consuming procedures. In addition, these techniques do not provide detailed descriptions of complex facades. Recent developments in photogrammetry and laser-scanning techniques present non-contact, flexible and accessible surveying tools for 2D–3D recording. This paper discusses the potential for combining photogrammetry, laser scanning and computer vision for the documentation of heritage sites. By these means the efficiency of data collection, as well as the geometric accuracy and visual quality of the collected textured 3D models, can be optimized. Additionally, accurate true orthophotos of the studied structure can be generated using precise 3D surface representations derived from laser scanning and overlapping digital images to entirely cover the object of interest. The final product allows the creation of detailed and complete facade plans, which are both graphically superior and accurate. The paper includes a study of the approach applied to historic buildings in the ancient Gharissa village, one of the best preserved heritage villages in Jordan.
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Figure 7 Building facade in Gharissa recorded by terrestrial laser scanning.
Figure 8 Two different meshed scans of the building
Yahya Alshawabkeh, PhD (Architectural Photogrammetry)
Dr Yahya Alshawabkeh is Assistant Professor at the Department of Conservation Science of Queen Rania Institute of Tourism and Heritage, The Hashemite University. He is particularly interested in work on integration of digital photogrammetry and laser scanning for Heritage documentation.
Khaled Douglas, PhD (Archaeology)
Dr Douglas is Assistant Professor at the Department of Sustainable Tourism at Queen Rania Institute of Tourism and Heritage, The Hashemite University. He is the director of the archaeological project at Gharissa, and the director of the archaeological excavations at Jneneh, an Early Bronze and Iron Age site, Zarqa-Jordan.
Mohammad Matarya, BA (Conservation Sci)
Mohammad Matarya is a research assistant and masters student at Queen Rania Institute of Tourism and Heritage. His field of interest is the application of photogrammetry and computer vision in archaeological applications.
Bilal Khrisat, PhD (Geoarchaeology)
Dr Bilal R. Khrisat is Assistant Professor at the Department of Conservation Science of Queen Rania Institute of Tourism and Heritage. His field of interest is the application of scientific methods in archaeology, stone weathering and conservation documentation and management of archaeological sites and cultural heritage management.
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