scholarly journals The Investigation of the Ardales Cave, Spain - 3D Documentation, Topographic Analyses, and Lighting Simulations based on Terrestrial Laser Scanning

2015 ◽  
Vol 23 (2) ◽  
pp. 75-86 ◽  
Author(s):  
Dirk Hoffmeister ◽  
Stefan Zellmann ◽  
Andreas Pastoors ◽  
Martin Kehl ◽  
Pedro Cantalejo ◽  
...  
Keyword(s):  
Laser Scanning ◽  
Terrestrial Laser Scanning ◽  
3D Documentation

scholarly journals Tower of Belém (Lisbon)–Status Quo 3D Documentation and Material Origin Determination

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2355
Author(s):  
Paula Redweik ◽  
José Juan de Sanjosé Blasco ◽  
Manuel Sánchez-Fernández ◽  
Alan D. Atkinson ◽  
Luís Francisco Martínez Corrales
Keyword(s):  
Laser Scanning ◽  
3D Model ◽  
Terrestrial Laser Scanning ◽  
Status Quo ◽  
World Heritage Site ◽  
Heritage Site ◽  
Tagus River ◽  
Stone Material ◽  
Origin Determination ◽  
3D Documentation

The Tower of Belém, an early 16th century defense tower located at the mouth of the Tagus river, is the iconic symbol of Lisbon. It belongs to the Belém complex, classified since 1983 as a World Heritage Site by the UNESCO, and it is the second most visited monument in Portugal. On November 1st, 1755, there was a heavy earthquake in Lisbon followed by a tsunami, causing between 60,000 and 100,000 deaths. There is a possibility of a repetition of such a catastrophe, which could bring about the collapse of the structure. This was the reasoning behind the decision to evaluate the Tower of Belém by means of surveys using Terrestrial Laser Scanning and photogrammetry. Until now, there was no high-resolution 3D model of the interior and exterior of the tower. A complete 3D documentation of the state of the Tower was achieved with a cloud of more than 6,200 million 3D points in the ETRS89 PT-TM06 coordinate system. Additionally, measurements were made using a hyperspectral camera and a spectroradiometer to characterize the stone material used in the Tower. The result is a digital 3D representation of the Tower of Belém, and the identification of the quarries that may have been used to extract its stone. The work carried out combines geometrical and material analysis. The methods used may constitute a guide when documenting and intervening in similar heritage elements. Finally, the information contained therein will allow an eventual reconstruction of the Tower in the case of another catastrophe.

scholarly journals 3D MODELS OF THE QH31, QH32 AND QH33 TOMBS IN QUBBET EL HAWA (ASWAN, EGYPT)

2020 ◽  
Vol XLIII-B2-2020 ◽  
pp. 1427-1434
Author(s):  
A. T. Mozas-Calvache ◽  
J. L. Pérez-García ◽  
J. M. Gómez-López ◽  
J. L. Martínez de Dios ◽  
A. Jiménez-Serrano
Keyword(s):  
Laser Scanning ◽  
3D Model ◽  
Terrestrial Laser Scanning ◽  
3D Models ◽  
Complex Geometries ◽  
Spatial Behaviour ◽  
Reduced Dimensions ◽  
Adjacent Structures ◽  
Close Range ◽  
3D Documentation

Abstract. This paper describes the methodology employed to obtain 3D models of three funerary complexes (QH31, QH32 and QH33) of the Necropolis of Qubbet el Hawa (Aswan, Egypt) and the main results obtained. These rock-cut tombs are adjacent structures defined by complex geometries such as chambers, corridors and vertical shafts. The main goal of this study was to discover the spatial relationships between them and obtain a complete 3D model. In addition, some models with realistic textures of the burial chambers were demanded in order to analyse archaeological, architectural and geological aspects. The methodology was based on the use of Terrestrial Laser Scanning and Close Range Photogrammetry. In general, both techniques were developed in parallel for each tomb. Some elements presented difficulties because of their reduced dimensions, the presence of vertical falls, some objects stored in the tombs that generated occlusions of some walls, coincidence of other workers, poor illumination conditions, etc. The results included three complete 3D models obtained without texture and some parts of interest obtained with real textures. All models were merged into a global 3D model. The information extracted from this product has helped architects and archaeologists to contrast their premises about the spatial behaviour of the tombs. The results have also allowed the obtaining of the first 3D documentation of these tombs under the same reference system, allowing them to be studied completely. This information is very important for documentation purposes but also to understand the spatial behaviour of these structures and the excavation processes developed by ancient Egyptians 4000 years ago.

scholarly journals Structure from motion (SfM) processing of UAV images and combination with terrestrial laser scanning, applied for a 3D-documentation in a hazardous situation

2017 ◽  
Vol 8 (2) ◽  
pp. 1492-1504 ◽  
Author(s):  
Isabel Martínez-Espejo Zaragoza ◽  
Gabriella Caroti ◽  
Andrea Piemonte ◽  
Björn Riedel ◽  
Dieter Tengen ◽  
...  
Keyword(s):  
Structure From Motion ◽  
Laser Scanning ◽  
Terrestrial Laser Scanning ◽  
3D Documentation ◽  
Uav Images

scholarly journals Overview of 3D Documentation Data and Tools available for Archaeological Researches: case study of the Romanesque Church of Dugny-sur-Meuse (France)

2015 ◽  
Vol XL-5/W7 ◽  
pp. 323-330
Author(s):  
H. Macher ◽  
P. Grussenmeyer ◽  
C. Kraemer ◽  
S. Guillemin
Keyword(s):  
Laser Scanning ◽  
3D Model ◽  
Terrestrial Laser Scanning ◽  
The Other ◽  
Simplified Model ◽  
Recording Project ◽  
Full Structure ◽  
3D Documentation ◽  
Gnss Measurements

In this paper, the 3D documentation of the full structure of the Romanesque church of Dugny-sur-Meuse is discussed. In 2012 and 2013, a 3D recording project was carried out under the supervision of the Photogrammetry and Geomatics Research Group from INSA Strasbourg (France) in cooperation with C. Kraemer, archaeologist from Nancy (France). The goal of the project was on one hand to propose new solutions and tools to the archaeologists in charge of the project especially for stone by stone measurements. On the other hand, a simplified 3D model was required by the local authorities for communication purposes. To achieve these goals several techniques were applied namely GNSS measurements and accurate traverse networks, photogrammetric recordings and terrestrial laser scanning acquisitions. The various acquired data are presented in this paper. Based on these data, several deliverables are also proposed. The generation of orthoimages from plane as well as cylindrical surfaces is considered. Moreover, the workflow for the creation of a 3D simplified model is also presented.

scholarly journals 3D Recording methodology applied to the Grotta Scritta Prehistoric Rock-Shelter in Olmeta-Di-Capocorso (Corsica, France)

2015 ◽  
Vol XL-5/W7 ◽  
pp. 179-185 ◽  
Author(s):  
P. Grussenmeyer ◽  
A. Burens ◽  
S. Guillemin ◽  
E. Alby ◽  
F. Allegrini Simonetti ◽  
...  
Keyword(s):  
Laser Scanning ◽  
3D Model ◽  
Terrestrial Laser Scanning ◽  
Point Clouds ◽  
The West ◽  
West Side ◽  
Rock Shelter ◽  
Support Tools ◽  
3D Documentation ◽  
Textured Models

The Grotta Scritta I prehistoric site is located on the west side of Cap Corse, in the territory of the municipality of Olmeta-di- Capocorso (Haute-Corse, France). This rock shelter is located on a western spur of the mountains La Serra, at 412 m height above sea level. In the regional context of a broad set of megalithic burial sites (regions Nebbiu and Agriates) and a rich insular prehistoric rock art with several engraved patterns (mainly geometric), the Grotta Scritta is the only site with painted depictions of Corsica. Around twenty parietal depictions are arranged in the upper part of the rock-shelter and takes advantage of the microtopography of the wall. Today, the Grotta Scritta is a vulnerable site, made fragile by the action of time and man. The 3D scanning of the rockshelter and paintings of the Grotta Scritta was carried out by surveyors and archaeologists from INSA Strasbourg and from UMR 5602 GEODE (Toulouse), by combining accurate terrestrial laser scanning and photogrammetry techniques. These techniques are based on a full 3D documentation without contact of the rock-shelter paintings. The paper presents the data acquisition methodology followed by an overview of data processing solutions based on both imaging and laser scanning. Several deliverables as point clouds, meshed models, textured models and orthoimages are proposed for the documentation. Beyond their usefulness in terms of valorization, communication and virtual restitution, the proposed models also provide support tools for the analysis and perception of the complexity of the volumes of the shelter (namely for the folded forms of the dome housing the paintings) as well as for the accuracy of the painted depictions recorded on the orthophotos processed from the 3D model.

scholarly journals Melite Civitas Romana in 3D: Virtualization Project of the Archaeological Park and Museum of the Domus Romana of Rabat, Malta

2021 ◽  
Vol 7 (1) ◽  
pp. 51-83
Author(s):  
Davide Tanasi ◽  
Stephan Hassam ◽  
Kaitlyn Kingsland ◽  
Paolo Trapani ◽  
Matthew King ◽  
...  
Keyword(s):  
Laser Scanning ◽  
Structured Light ◽  
Terrestrial Laser Scanning ◽  
Archaeological Site ◽  
South Florida ◽  
Virtual Museum ◽  
Current State ◽  
Structured Light Scanning ◽  
The University ◽  
Archaeological Excavations

Abstract The archaeological site of the Domus Romana in Rabat, Malta was excavated almost 100 years ago yielding artefacts from the various phases of the site. The Melite Civitas Romana project was designed to investigate the domus, which may have been the home of a Roman Senator, and its many phases of use. Pending planned archaeological excavations designed to investigate the various phases of the site, a team from the Institute for Digital Exploration from the University of South Florida carried out a digitization campaign in the summer of 2019 using terrestrial laser scanning and aerial digital photogrammetry to document the current state of the site to provide a baseline of documentation and plan the coming excavations. In parallel, structured light scanning and photogrammetry were used to digitize 128 artefacts in the museum of the Domus Romana to aid in off-site research and create a virtual museum platform for global dissemination.

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