Type: Chapter (Book)
Title: 3D model of Al Zubarah fortress in Qatar - terrestrial laser scanning vs. dense image matching
Authors: Kersten, Thomas 
Mechelke, Klaus 
Maziull, Lena
Source: WG V/4, CIPA : 3D-Arch 2015 – 3D Virtual Reconstruction and Visualization of Complex Architectures (XL-5/W4)
Issue Date: 18-Feb-2015
Keywords: 3D; archaeology; cultural heritage; meshing; reconstruction; virtual
In September 2011 the fortress Al Zubarah, built in 1938 as a typical Arabic fortress and restored in 1987 as a museum, was recorded by the HafenCity University Hamburg using terrestrial laser scanning with the IMAGER 5006h and digital photogrammetry for the Qatar Museum Authority within the framework of the Qatar Islamic Archaeology and Heritage Project. One goal of the object recording was to provide detailed 2D/3D documentation of the fortress. This was used to complete specific detailed restoration work in the recent years. From the registered laser scanning point clouds several cuttings and 2D plans were generated as well as a 3D surface model by triangle meshing. Additionally, point clouds and surface models were automatically generated from digital imagery from a Nikon D70 using the open-source software Bundler/PMVS2, free software VisualSFM, Autodesk Web Service 123D Catch beta, and low-cost software Agisoft PhotoScan. These outputs were compared with the results from terrestrial laser scanning. The point clouds and surface models derived from imagery could not achieve the same quality of geometrical accuracy as laser scanning (i.e. 1–2 cm).
Subject Class (DDC): 004: Informatik
HCU-Faculty: Photogrammetrie und Laserscanning 
Start page: 1
End page: 8
Publisher: Copernicus
Part of Series: International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 
Volume number: XL-5/W4
Publisher DOI: 10.5194/isprsarchives-XL-5-W4-1-2015
URN (Citation Link): urn:nbn:de:gbv:1373-repos-12602
Directlink: https://repos.hcu-hamburg.de/handle/hcu/979
Language: English
Creative Commons License: https://creativecommons.org/licenses/by/4.0/
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