3D virtual reconstructions at the service of computer assisted archaeological measurements

Technological advances have enabled photogrammetric and surveying methods to produce recording materials surpassing the traditional line drawings in accuracy and completeness. These methodologies may offer products not possible in the past. This paper relates the difficult experience of collecting, archiving, processing, combining, visualizing and exploiting data from a multitude of sources to make accurate geometric records of monuments, implementing the most contemporary, innovative and technologically advanced methods. Issues analysed include collecting and processing field data from a variety of sources and their respective properties, but also the production of different end products, vector and raster, with the main emphasis on complex 3D visualizations. Different approaches are assessed for their usefulness and potential accuracy. Examples covering a variety of Greek and Cypriot monuments are presented, which are acquired from the rich experience of the archaeological surveys of the Laboratory of Photogrammetry of NTUA.

[1]  David Eppstein,et al.  The Crust and the beta-Skeleton: Combinatorial Curve Reconstruction , 1998, Graph. Model. Image Process..

[2]  I. Kalisperakis,et al.  DATA FUSION FROM MULTIPLE SOURCES FOR THE PRODUCTION OF ORTHOGRAPHIC AND PERSPECTIVE VIEWS WITH AUTOMATIC VISIBILITY CHECKING , 2005 .

[3]  Jindong Chen,et al.  Automatic Reconstruction of 3D CAD Models from Digital Scans , 1999, Int. J. Comput. Geom. Appl..

[4]  A. Gruen.  NEW TECHNOLOGIES FOR EFFICENT LARGE SITE MODELING , 2005 .

[5]  J. Pérez,et al.  EXPERIENCES ABOUT FUSIONING 3D DIGITALIZATION TECHNIQUES FOR CULTURAL HERITAGE DOCUMENTATION , 1980 .

[6]  Yahya Alshawabkeh,et al.  Combining Laser Scanning and Photogrammetry - A Hybrid Approach for Heritage Documentation , 2006, VAST.

[7]  Marshall W. Bern,et al.  A new Voronoi-based surface reconstruction algorithm , 1998, SIGGRAPH.

[8]  Dominique Attali.  R-regular Shape Reconstruction from Unorganized Points , 1998, Comput. Geom..

[9]  Diego Sagasti,et al.  Virtual Restoration of Cultural Heritage Through Real-Time 3D Models Projection , 2005 .

[10]  K. Fischer-Ausserer,et al.  Between Reconstruction and Reproduction. The Role of Virtual Models in Archaeological Research , 2004 .

[11]  Maria Tsakiri,et al.  LASER SCANNING AND PHOTOGRAMMETRY FOR THE DOCUMENTATION OF A LARGE STATUE-EXPERIENCES IN THE COMBINED USE , 2003 .

[12]  Carlo Atzeni,et al.  DIGITAL THREE-DIMENSIONAL MODELING OF HERITAGE BY FREQUENCY-MODULATED LASER RADAR : THE CASE OF DONATELLO'S DAVID , 2004 .

[13]  S. El-Hakim,et al.  3-D RECONSTRUCTION OF COMPLEX ARCHITECTURES FROM MULTIPLE DATA , 2005 .

[14]  Juan Barceló,et al.  A 3D Model of an Archaeological Excavation , 2003 .

[15]  J.-Angelo Beraldin,et al.  Multi-Resolution Digital 3D Imaging System Applied to the Recording of Grotto Sites: the Case of the Grotta dei Cervi , 2006, VAST.

[16]  Marc Levoy,et al.  A volumetric method for building complex models from range images , 1996, SIGGRAPH.