FROM TLS SURVEY TO 3D SOLID MODELING FOR DOCUMENTATION OF BUILT HERITAGE: THE CASE STUDY OF PORTA SAVONAROLA IN PADUA
It is a matter of fact that 3D visualisation and proper documentation of cultural objects helps to preserve the history and memories of historic buildings, archaeological sites and cultural landscapes, and supports economic growth by stimulating cultural tourism. Preservation, visualisation and re...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2017-08-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W5/303/2017/isprs-archives-XLII-2-W5-303-2017.pdf |
| Summary: | It is a matter of fact that 3D visualisation and proper documentation of cultural objects helps to preserve the history and memories of
historic buildings, archaeological sites and cultural landscapes, and supports economic growth by stimulating cultural tourism.
Preservation, visualisation and recreation of valuable historical and architectural objects and places has always been a serious
challenge for specialists in the field. Today, the rapid developments in the fields of close-range photogrammetry, terrestrial laser
scanning (TLS) and computer vision (CV) enable to carry out highly accurate 3D models so as to be extremely effective and intuitive
for users who have stringent requirements and high expectations. In this note we present the results of the survey and 3D modeling of
an ancient gate, Porta Savonarola, located within the remains of the medieval town walls surrounding the historical city center of
Padua, Italy. The work has been undertaken within the framework of the project “Walls Multimedia Museum” (WMM) promoted by
the local private association “Padua Walls Committee”. The goal of the project was to develop a prototype of an “extended” virtual
museum, spreaded along most interesting locations of the town walls. The survey of the ancient gate was performed with a Leica
C10 and P20 terrestrial laser scanners. Once the acquired scans were properly merged together, a solid model was generated from the
global point cloud, and plans and elevations were extracted from it for restoration purposes. A short multimedia video was also
created for the “Walls Multimedia Museum”, showing both the outer and inner part of the gate. In the paper we will discuss all the
steps and challenges addressed to provide the 3D solid model of Porta Savonarola from the TLS data. |
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| ISSN: | 1682-1750 2194-9034 |