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3D photogrammetric restitution of carvings and GIS applies: The case of the Fontana of Nettuno at Conegliano Veneto


GIS technology can be used to support both these fields applied from the architectural scale to the urban scale to support the production of the map of the risk of the Cultural Architectonic Heritage. GIS can be really used as decision support system to set up a project of conservation which satisfy the necessity to relate heterogeneous information, which come from different disciplines, to the decision processes the analysis of the materials (Fig. 10), the state of the art, the state of degree of the marbles and of the components of the carving (Fig. 11), the analysis of the causes of degree, disruption, the decay, weathering and deterioration, the studies of the different pathologies. Once mapped the degree on the raster metric images, on the different portions, in future it has to be increased the research to set up an easy metric surface 3D computation implementing GIS functionality and consequently an agile computation of the costs, related to 3D DSM (3D surfaces model). GIS can be also a valid instrument to support in real time the daily activity in the architectural yard. The organization of dedicated data bank allows verifying the standard limits admitted by the low in the re-use project. It has been used the Software ArcInfo and ArcView to build the GIS system, and the Software ArcExplorer to share and use the information, distributed by ESRI. It can become a valid instrument to support in real time the daily activity in the architectural yard.

Guide lines for the development of the research
  • Implementation of survey through laser scanning technology applied to the carving;

  • Implementation TIN 3D model with auto-correlation test;

  • Implementation of Digital Surface Model (DSM) intelligent and automatic recognizing ;

  • 3D orthophoto generation;

  • 3D GIS management of the raste-vector model to better support conservation process and yard intervention.


Fig. 1: Control points taken on the Carving with "traditional" instrument



Fig. 2: Test model obtained by auto-correlation



Fig. 3: "cloud" of control point taken with laser scanning instrument



Fig. 4: test-model obtained from auto-correlation points and manual digitized points


Figg. 5 -6: digital ortophoto


Fig. 7: GIS. Ortophoto of left side of carving group Fig. 8: GIS. Map of deterioration



Fig. 9: GIS. Fountain. One of 12 sides of basin.



Fig. 10: GIS. Map of matter of side of fountain



Fig. 11: GIS. Map of deterioration on side of fountain

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