Instruments and Methodologies for the Underwater Tridimensional Digitization and Data Musealization

Repola, Leopoldo; Memmolo, R; Signoretti, D

doi:10.5194/isprsarchives-xl-5-w5-183-2015

Cited by 7 publications

(5 citation statements)

References 6 publications

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“…The multiple resolutions and flexibility of the different 3D models allow the project to meet the data specifications for many different fieldwork, laboratory research, heritage management, and outreach purposes. While the field testing of the ISU3D methodology and its associated infrastructure was undertaken on a shipwreck in shallow waters, the system, survey procedures, and data management approaches were all designed so as to be easily transferrable to other underwater archaeological contexts regardless of size, depth, topographical complexity or seabed type, whether continuous rock or sand (Repola et al, ).…”

Section: Resultsmentioning

confidence: 99%

“…For the data collection phase (A) we used the purposely designed ScubaLibre hardware system (Repola et al, ). ScubaLibre is a stereoscopic camera system that is comprised of a steel bracket onto which two GoPro Hero Black Edition cameras are installed, placed in their respective underwater housings, and positioned in order to have their optical axes perfectly parallel.…”

Section: Methodsmentioning

confidence: 99%

“…Weaving these finds and archaeological context together into a comprehensive narrative about the ship, its journey, and its broader economic world demands digital recording tools that can work from the scale of a large, topographically complex and dispersed site down to the level of the individual object. In light of these challenges, the Marzamemi project implemented a system of underwater documentation relying on an image‐based process to generate point clouds using the hardware setup ‘ScubaLibre’ (Repola, Memmolo, & Signoretti, ) of two parallel cameras and a streamlined software procedure . The resulting process offers broad replicability in diverse scenarios where traditional 3D systems like laser scanning and LiDAR (light detection and ranging) cannot be used.…”

Section: Introduction: Digital Recording For Shipwrecksmentioning

confidence: 99%

See 2 more Smart Citations

Virtual simulation of a late antique shipwreck at Marzamemi, Sicily: Integrated processes for 3D documentation, analysis and representation of underwater archaeological data

Repola

Carlo

Signoretti

et al. 2018

Archaeological Prospection

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Three‐dimensional (3D) models derived from digital survey techniques have increasingly become a mainstay of archaeological research and cultural heritage management. The high accuracy of such modelling makes it an attractive solution for a wide range of challenges from site recording and interpretation to object analysis and reconstruction. The present paper focuses on a new 3D digitization method using stereoscopic video for the documentation, analysis, and representation of archaeological contexts as part of shipwreck investigations off southeast Sicily at Marzamemi. This sixth‐century ce vessel sank in shallow water (7–8 m) while carrying a massive cargo of largely prefabricated architectural elements intended for the construction and decoration of a church somewhere in the late antique west. This dynamic site presents significant challenges to the interpretation of depositional and post‐depositional events as well the reconstruction of the original cargo and individual architectural elements. Therefore, 3D documentation underwater at Marzamemi has centred on new methods for stereoscopic scanning of the site, topography, and large architectural finds, allowing not only more rapid and precise mapping but insights into site formation processes and the organizational mechanisms behind the cargo assemblage. The adoption of this new system based on a precise workflow and simple, inexpensive hardware combined with readily available software allows more accurate and rapid digital recording underwater to a high standard across scales, from the site level down to the individual artefact. This process, named ISU3D (Integrated System for Underwater 3D Digitization), offers innovative solutions not only for archaeological field research but for heritage management and public outreach.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introduction: Digital Recording For Shipwrecksmentioning

confidence: 99%

See 1 more Smart Citation

Virtual simulation of a late antique shipwreck at Marzamemi, Sicily: Integrated processes for 3D documentation, analysis and representation of underwater archaeological data

Repola

Carlo

Signoretti

et al. 2018

Archaeological Prospection

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show abstract

“…So far, one of the large advantages of the derived 3D models is the possibility to visualise complex sites (Repola et al 2015), and to create fly-through videos (McCarthy and Benjamin 2014). These methods of visualisation, as well as the production of 3D prints, help with communicating the findings to a large audience.…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Point Cloud Comparison Methods on the Verification of Point Clouds Using the Batavia Reconstruction as a Case Study

Helmholz,

Belton,

Oliver

et al. 2020

IKUWA6. Shared Heritage: Proceedings of the Sixth International Congress for Underwater Archaeology

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During the excavation of the Batavia shipwreck in the 1970s part of the wooden hull and additional artefacts were excavated and conserved. In the course of the excavation over 3500 underwater images were captured to document the expedition. These images have allowed for the digital 3D reconstruction of the Batavia as it was found on the sea floor. The physical shipwreck timbers were reconstructed and are now located in the Fremantle Shipwrecks Museum. In 2014, a Terrestrial Laser Scanner (Leica C10) was utilised to capture the shipwreck as displayed in the museum. This resulted in two different point clouds of the vessel: a) based on the images captured underwater and, b) based on laser scan data captured in the museum. The case study will focus on two different sections of the vessel with different complexity, and has two aims. Firstly, the goal is to compare the 3D reconstructions from the underwater archival photography with the laser scans and 3D reconstruction of the Batavia hull currently on display to verify if the Batavia as displayed today has the same configuration as the original wreck. The results show that while the difference between both datasets is often minimal, some differences are visible because the excavation took place over a long period. Secondly, the paper will evaluate the influence of different methods for point cloud comparison. The methods are namely point-to-point and point-to-model and are used to quantify the differences of the shipwreck's point clouds. Even though the same input point clouds were utilised, the paper will show that the results of the comparison were influenced by the point-cloud-comparison method used.

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“…Such kinds of underwater surveys in shallow water include on-site diving [4][5][6][7][8][9][10][11][12] which requires proper training. The design, the planning and the accomplishment of a dive for the recording of marine features combines a wide body of knowledge and skills beyond the basic ones that are needed for a recreational diving.…”

mentioning

confidence: 99%

Underwater Recording and 3D Modeling during a Dive Training Course: A Case Study at Panormos, Skopelos, Greece

Papadimitriou¹,

Ktistis²,

Sarakinou³

2015

JESE-A

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Abstract:In the field of underwater survey, there is a variety of methods which differ from each other in terms of the operating environment and the purpose that each method is used. Hence, some of the state-of-the-art methods, that have many applications in the various scientific fields nowadays, are introduced in this paper. Additionally, the application of the procedures for an underwater survey in shallow depths is analyzed in accordance with the training standards of the PADI Underwater Survey Diver distinctive specialty. The main goal is to demonstrate not only the theoretical background of underwater surveys but also their operational issues, in order to facilitate the development of knowledge and skills during a training course. Finally, a case study for the recording and 3D modeling of the seabeds' morphology in shallow water is presented as it has been organized and accomplished by the participants of such a training course. By this way, it is expected that the reader will understand explicitly the application of the procedures prior, during and after the dive for an underwater survey in shallow depths.

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Instruments and Methodologies for the Underwater Tridimensional Digitization and Data Musealization

Cited by 7 publications

References 6 publications

Virtual simulation of a late antique shipwreck at Marzamemi, Sicily: Integrated processes for 3D documentation, analysis and representation of underwater archaeological data

Virtual simulation of a late antique shipwreck at Marzamemi, Sicily: Integrated processes for 3D documentation, analysis and representation of underwater archaeological data

The Influence of the Point Cloud Comparison Methods on the Verification of Point Clouds Using the Batavia Reconstruction as a Case Study

Underwater Recording and 3D Modeling during a Dive Training Course: A Case Study at Panormos, Skopelos, Greece

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