The paper will discuss the promising application of photogrammetry in underwater archaeology. Marsa Bagoush (ancient Zygris) was mentioned by Claudius Ptolemaeus in the 2nd century AD as one of the main anchorages along the northwest coast of Egypt between Alexandria and Marsa Matrouh (ancient Paraetonium).This paper presents the results of the on-going digital documentation of the site which is a major part of an underwater archaeological investigation project. The site is located 250 km west of Alexandria, and it takes the form of a bay, almost 650,000 m2. Therefore, these technologies are utilized as essential aspects of the underwater archaeological research project in the site of Marsa Bagoush, Egypt. That is in addition to significant enhancement in research plans, management, and results, especially in extended seabed archaeological projects. Moreover, these techniques offer considerable reduction in the cost of underwater archaeological research. They have also emerged as significant archaeological tools as a result of an increasing level of automated workflow in data acquisition and processing. ![]() Photogrammetry and GIS technologies are developing rapidly and becoming more affordable. In this dissertation, the author explains his methodology and related new ideas. These types of representative data include (but are not limited to) site plans, technical artifact or timber drawings, shipwreck section profiles, georeferenced archaeological information databases, site-monitoring systems, digital hull fragment models and many other types of usable and practical 3D models. Using this method, archaeologists can create 3D models that accurately represent submerged cultural heritage sites, and these can be used as representative archaeological data. With this idea, the author composed a new methodology that fuses Computer Vision Photogrammetry and other digital tools into traditional research methods of nautical archaeology. Thus, Computer Vision Photogrammetry can substantially reduce archaeologists’ working time in water, and maximize quantity and quality of the data acquired.įurthermore, the author believes that the acquired photogrammetric data can be utilized in traditional ship reconstruction and other general studies of shipwrecks. This means that archaeologists never need to revisit the archaeological site to take additional measurements. After creation of a 1:1 scale constrained photogrammetric model, any measurements of the site can be obtained from the created 3D model and its digital data. The author believes that creating a 1:1 scale constrained photogrammetric model of a submerged shipwreck site is not difficult as long as archaeologists first establish a local coordinate system of the site. Today (2015), there are still active discussions regarding the accuracy and usage of Computer Vision Photogrammetry in the discipline of nautical archaeology. ![]() In 2010, a new off-the-shelf software for Computer Vision Photogrammetry, Agisoft PhotoScan, became available to nautical archeologists, and this technology has since become a popular method for recording underwater shipwreck sites.
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