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Integrated 3D geomatics for archaeology: case study Malta

Alain De Wulf UGent, Roald Docter UGent, Cornelis Stal UGent, Rudi Goossens UGent, Timothy Nuttens UGent and Nicholas Vella (2011) Remote sensing and geoinformation not only for scientific cooperation : proceedings of the 31st EARSeL symposium. p.604-612
abstract
This article discusses the integrated use of different 3D geomatics techniques: digital aerial photogrammetric restitution, advanced SBAS GNSS and robotized total station measurements. The aim is the realization of both an orthophoto plan and a digital elevation models (DEM) of the whole research area. Quality control, e.g. by applying accuracy analysis of the DEMs, is hereby of vital importance. The integration of these different techniques and the resulting final products are used for an important archaeological campaign on the island of Malta. This successful case study can be representative for many archaeological applications where high quality reference data are required for large areas. Especially when multiple archaeological sites are spread over the landscape, it is essential to have orthophotos or a vector dataset, covering the areas of interest. An orthophoto plan and DEM with an area of ca. 20 km² on the north western part of Malta (Valley of Bidnija and Burmarrad) have been constructed by the authors. Several Punic and Roman sites are located in this area and are documented by researchers of Ghent University in collaboration with the University of Malta and the Superintendence of Cultural Heritage Malta. The project is financed by the Flemish Fund for Scientific Research and entitled “Malta Survey Project 2008 (MSP2008). The orthophoto plan and DEM make it possible to put separate campaigns in a wider spatial context, which enables the detection of possible horizontal relations between the sites. Moreover, combining documented archaeological sites with a DEM enables the analysis of vertical relations. This explains the necessity of elevation data in archaeological research of e.g. water household management on ancient sites. In many cases, no digital elevation models with the desired quality are available. Therefore, the necessary DEM has to be measured and computed for the specific project. The final joined DEM for the whole area of this project is based on 10 photogrammetric stereo couples, with a scale of 1:10 000 and a resolution of 25 cm, and has been georeferenced by GNSS (CNAV). These stereo couples have been processed using the photogrammetric software VirtuoZo. The quality analysis of the DEM, based on overlapping zones between different orthophotos, is executed by the point processing software WinTopo. Different derivative products from the orthophoto plan and DEM - like contour line maps, 3D models, hillshade maps and others - will serve in further analysis of the ancient sites on the island of Malta.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
Digital photogrammetry, archaeology, DEM generation, GNSS
in
Remote sensing and geoinformation not only for scientific cooperation : proceedings of the 31st EARSeL symposium
editor
Lena Halounová
pages
604 - 612
publisher
European Association of Remote Sensing Laboratories (EARSeL)
conference name
31th EARSeL symposium : Remote sensing and geoinformation not only for scientific cooperation
conference location
Prague, Czech Republic
conference start
2011-05-30
conference end
2011-06-02
ISBN
9788001048689
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1993456
handle
http://hdl.handle.net/1854/LU-1993456
date created
2012-01-18 15:36:05
date last changed
2015-06-17 09:54:33
@inproceedings{1993456,
  abstract     = {This article discusses the integrated use of different 3D geomatics techniques: digital aerial photogrammetric restitution, advanced SBAS GNSS and robotized total station measurements. The aim is the realization of both an orthophoto plan and a digital elevation models (DEM) of the whole research area. Quality control, e.g. by applying accuracy analysis of the DEMs, is hereby of vital importance. The integration of these different techniques and the resulting final products are used for an important archaeological campaign on the island of Malta. This successful case study can be representative for many archaeological applications where high quality reference data are required for large areas. Especially when multiple archaeological sites are spread over the landscape, it is essential to have orthophotos or a vector dataset, covering the areas of interest. An orthophoto plan and DEM with an area of ca. 20 km{\texttwosuperior} on the north western part of Malta (Valley of Bidnija and Burmarrad) have been constructed by the authors. Several Punic and Roman sites are located in this area and are documented by researchers of Ghent University in collaboration with the University of Malta and the Superintendence of Cultural Heritage Malta. The project is financed by the Flemish Fund for Scientific Research and entitled {\textquotedblleft}Malta Survey Project 2008 (MSP2008). The orthophoto plan and DEM make it possible to put separate campaigns in a wider spatial context, which enables the detection of possible horizontal relations between the sites. Moreover, combining documented archaeological sites with a DEM enables the analysis of vertical relations. This explains the necessity of elevation data in archaeological research of e.g. water household management on ancient sites. In many cases, no digital elevation models with the desired quality are available. Therefore, the necessary DEM has to be measured and computed for the specific project. The final joined DEM for the whole area of this project is based on 10 photogrammetric stereo couples, with a scale of 1:10 000 and a resolution of 25 cm, and has been georeferenced by GNSS (CNAV). These stereo couples have been processed using the photogrammetric software VirtuoZo. The quality analysis of the DEM, based on overlapping zones between different orthophotos, is executed by the point processing software WinTopo. Different derivative products from the orthophoto plan and DEM - like contour line maps, 3D models, hillshade maps and others - will serve in further analysis of the ancient sites on the island of Malta.},
  author       = {De Wulf, Alain and Docter, Roald and Stal, Cornelis and Goossens, Rudi and Nuttens, Timothy and Vella, Nicholas},
  booktitle    = {Remote sensing and geoinformation not only for scientific cooperation : proceedings of the 31st EARSeL symposium},
  editor       = {Halounov{\'a}, Lena},
  isbn         = {9788001048689},
  keyword      = {Digital photogrammetry,archaeology,DEM generation,GNSS},
  language     = {eng},
  location     = {Prague, Czech Republic},
  pages        = {604--612},
  publisher    = {European Association of Remote Sensing Laboratories (EARSeL)},
  title        = {Integrated 3D geomatics for archaeology: case study Malta},
  year         = {2011},
}

Chicago
De Wulf, Alain, Roald Docter, Cornelis Stal, Rudi Goossens, Timothy Nuttens, and Nicholas Vella. 2011. “Integrated 3D Geomatics for Archaeology: Case Study Malta.” In Remote Sensing and Geoinformation Not Only for Scientific Cooperation : Proceedings of the 31st EARSeL Symposium, ed. Lena Halounová, 604–612. European Association of Remote Sensing Laboratories (EARSeL).
APA
De Wulf, A., Docter, R., Stal, C., Goossens, R., Nuttens, T., & Vella, N. (2011). Integrated 3D geomatics for archaeology: case study Malta. In L. Halounová (Ed.), Remote sensing and geoinformation not only for scientific cooperation : proceedings of the 31st EARSeL symposium (pp. 604–612). Presented at the 31th EARSeL symposium : Remote sensing and geoinformation not only for scientific cooperation, European Association of Remote Sensing Laboratories (EARSeL).
Vancouver
1.
De Wulf A, Docter R, Stal C, Goossens R, Nuttens T, Vella N. Integrated 3D geomatics for archaeology: case study Malta. In: Halounová L, editor. Remote sensing and geoinformation not only for scientific cooperation : proceedings of the 31st EARSeL symposium. European Association of Remote Sensing Laboratories (EARSeL); 2011. p. 604–12.
MLA
De Wulf, Alain, Roald Docter, Cornelis Stal, et al. “Integrated 3D Geomatics for Archaeology: Case Study Malta.” Remote Sensing and Geoinformation Not Only for Scientific Cooperation : Proceedings of the 31st EARSeL Symposium. Ed. Lena Halounová. European Association of Remote Sensing Laboratories (EARSeL), 2011. 604–612. Print.