UNDERWATER PHOTOGRAMMETRY AND 3D RECONSTRUCTION OF MARBLE CARGOS SHIPWRECK
Nowadays archaeological and architectural surveys are based on the acquisition and processing of point clouds, allowing a high metric precision, essential prerequisite for a good documentation. Digital image processing and laser scanner have changed the archaeological survey campaign, from manual an...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2015-04-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-5-W5/7/2015/isprsarchives-XL-5-W5-7-2015.pdf |
| Summary: | Nowadays archaeological and architectural surveys are based on the acquisition and processing of point clouds, allowing a high
metric precision, essential prerequisite for a good documentation. Digital image processing and laser scanner have changed the
archaeological survey campaign, from manual and direct survey to a digital one and, actually, multi-image photogrammetry is a good
solution for the underwater archaeology. This technical documentation cannot operate alone, but it has to be supported by a
topographical survey to georeference all the finds in the same reference system. In the last years the Ca' Foscari and IUAV
University of Venice are conducting a research on integrated survey techniques to support underwater metric documentation. The
paper will explain all the phases regarding the survey’s design, images acquisition, topographic measure and the data processing of
two Roman shipwrecks in south Sicily. The cargos of the shipwrecks are composed by huge marble blocks, but they are different for
morphological characteristic of the sites, for the depth and for their distribution on the seabed. Photogrammetrical and topographical
surveys were organized in two distinct methods, especially for the second one, due to the depth that have allowed an experimentation
of GPS RTK’s measurements on one shipwreck. Moreover, this kind of three-dimensional documentation is useful for educational
and dissemination aspect, for the ease of understanding by wide public. |
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| ISSN: | 1682-1750 2194-9034 |