scholarly journals POINT CLOUD DATASET AND FEM FOR A COMPLEX GEOMETRY: THE SAN LUZI BELL TOWER CASE STUDY

2019 ◽  
Vol XLII-2/W11 ◽  
pp. 1047-1052
Author(s):  
I. Selvaggi ◽  
G. Bitelli ◽  
E. Serantoni ◽  
A. Wieser
Keyword(s):  
Laser Scanning ◽  
Structural Engineering ◽  
Structural Model ◽  
Complex Geometry ◽  
Three Dimensional ◽  
Potential Contribution ◽  
Bell Tower ◽  
Dimensional Reconstruction ◽  
Three Dimensional Models

<p><strong>Abstract.</strong> Detailed three-dimensional reconstruction of heritage objects is crucial for different purposes, such as analysis, preservation and maintenance, among others. Geomatics techniques allow acquiring complex and comprehensive information about geometry and current conditions of the surveyed objects in a short time, which is a great advantage for documentation and historical archives. The reconstruction of three-dimensional models is often performed using either image-based techniques, mainly Close Range Photogrammetry (CRP), including Structure from Motion approaches (SfM), or range-based techniques, such as Terrestrial Laser Scanning (TLS). These approaches have been widely applied in the field of Cultural Heritage to support multidisciplinary studies, from simple documentation to the monitoring of historical buildings, in restoration works or for structural analysis checks.</p><p>The present paper aims at exploring the potential contribution of Geomatics to Structural Engineering, by investigating capabilities and advantages of TLS for a vertical structure. The experiments presented herein were carried out in a notable case study, the San Luzi church, located in Zuoz (Switzerland) in the Upper Engadin. Its bell tower is about 60&amp;thinsp;m high and is equipped with four bells. Strong vibrations caused by the ringing of the bells have been observed in the past, and a structural model was desired to enable numerical evaluations of the response of the tower to various load situations by FEM.</p>

scholarly journals UNDERSTANDING THE EFFECTS OF DOCUMENTATION DETAIL ON DIAGNOSTICS OF HISTORIC STRUCTURES

2019 ◽  
Vol XLII-2/W15 ◽  
pp. 843-848
Author(s):  
R. K. Napolitano ◽  
M. Hess ◽  
B. Glisic
Keyword(s):  
Laser Scanning ◽  
Distinct Element ◽  
Three Dimensional ◽  
Level Of Detail ◽  
Laser Scanners ◽  
Historic Structures ◽  
New Construction ◽  
Distinct Element Modelling ◽  
Three Dimensional Models

<p><strong>Abstract.</strong> Before reinforcements or new construction are added to historic structures, it is important to understand how the existing damage could have arisen. Often to do this, documentation methods such as laser scanning and photogrammetry are used to capture the existing conditions and physics-based models are used to simulate the response of a facsimile structure to various responses. Something that varies quite a bit though is the level of detail used to capture the existing conditions as well as the level of detail used to represent the structure during physics-based modelling. This paper aims to understand the effects of documentation detail on diagnostics of historic structures. To do this, two masonry structures were documented with laser scanners, photographs, and thermal images. For each case study, three-dimensional models of varying fidelity were generated based on the results of simulation. The response of these models to loading conditions was then calculated using a physics-based modelling technique called finite-distinct element modelling. The results for each case study are compared to understand the impacts of geometry on diagnostics; discussion about future tools to augment current practices is included.</p>

THE USING OF TERRESTRIAL LASER (POINT CLOUD) SCANNING TECHNOLOGIES ON URBAN SCALE: EXAMPLE OF THE HISTORICAL URBAN TEXTURE OF LAPSEKİ

2021 ◽  
Vol 0 (23) ◽  
pp. 0-0
Author(s):  
Hatice Çiğdem ZAĞRA ◽  
Sibel ÖZDEN
Keyword(s):  
Point Cloud ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Terrestrial Laser Scanning ◽  
Traditional Methods ◽  
Life Project ◽  
Three Dimensional Models ◽  
Architectural Restoration ◽  
Cloud Technologies ◽  
Orthophoto Images

Aim: This study aims to comparatively evaluate the use potential of orthophoto images obtained by terrestrial laser scanning technologies on an urban scale through the "Old Lapseki Finds Life Project" prepared using terrestrial laser scanning technologies and the "Enez Historical City Square Project" prepared using traditional methods. Method: In the study, street improvement projects of 29.210 m2 Lapseki and 29.214 m2 Enez city designed on an urban scale were evaluated and compared with descriptive statistics based on different parameters. Results: In the study, it has been determined that terrestrial laser (point cloud) technologies are 99,9% accurate when compared to traditional methods, save time by 83,08% and reduce workforce by 80%. In addition, it has been determined that terrestrial laser scanning technologies accelerate project processes compared to traditional methods. Conclusion: In this study, the use of laser scanning technologies, which are basically reverse engineering applications, in architectural restoration projects, determination of the current situation and damage, architectural documentation of structures and preparation of three-dimensional models, in terms of efficiency in survey studies are evaluated. It has been observed that orthophoto images obtained by terrestrial laser scanning technologies in architectural relief-restoration-restitution projects have potentials' worth using in different stages of the project.

scholarly journals Integrating Digital Datasets into Public Engagement through ArcGIS StoryMaps

2020 ◽  
Vol 8 (4) ◽  
pp. 351-360
Author(s):  
Matthew D. Howland ◽  
Brady Liss ◽  
Thomas E. Levy ◽  
Mohammad Najjar
Keyword(s):  
Iron Age ◽  
Public Engagement ◽  
Three Dimensional ◽  
First Century ◽  
Copper Production ◽  
The Public ◽  
The Past ◽  
Archaeological Methods ◽  
Three Dimensional Models

AbstractArchaeologists have a responsibility to use their research to engage people and provide opportunities for the public to interact with cultural heritage and interpret it on their own terms. This can be done through hypermedia and deep mapping as approaches to public archaeology. In twenty-first-century archaeology, scholars can rely on vastly improved technologies to aid them in these efforts toward public engagement, including digital photography, geographic information systems, and three-dimensional models. These technologies, even when collected for analysis or documentation, can be valuable tools for educating and involving the public with archaeological methods and how these methods help archaeologists learn about the past. Ultimately, academic storytelling can benefit from making archaeological results and methods accessible and engaging for stakeholders and the general public. ArcGIS StoryMaps is an effective tool for integrating digital datasets into an accessible framework that is suitable for interactive public engagement. This article describes the benefits of using ArcGIS StoryMaps for hypermedia and deep mapping–based public engagement using the story of copper production in Iron Age Faynan, Jordan, as a case study.

scholarly journals URBAN MODELLING WITH TYPOLOGICAL APPROACH. CASE STUDY: MERIDA, YUCATAN, MEXICO

2017 ◽  
Vol XLII-2/W5 ◽  
pp. 617-620
Author(s):  
A. Rodriguez
Keyword(s):  
3D Modeling ◽  
Three Dimensional ◽  
Historical Reconstruction ◽  
Colonial Era ◽  
Common Features ◽  
Modeling Approach ◽  
Urban Modelling ◽  
Typological Approach ◽  
Three Dimensional Models

In three-dimensional models of urban historical reconstruction, missed contextual architecture faces difficulties because it does not have much written references in contrast to the most important monuments. This is the case of Merida, Yucatan, Mexico during the Colonial Era (1542-1810), which has lost much of its heritage. An alternative to offer a hypothetical view of these elements is a typological - parametric definition that allows a 3D modeling approach to the most common features of this heritage evidence.

scholarly journals A virtual diorama. Mapping archives in situ at places of cultural significance

1970 ◽  
pp. 22-36
Author(s):  
Jonathan Westin ◽  
Gunnar Almevik
Keyword(s):  
Spatial Information ◽  
Three Dimensional ◽  
Physical Space ◽  
Cultural Significance ◽  
Dimensional Reconstruction ◽  
Historical Photographs ◽  
New Applications ◽  
Archive Material

Using the wooden church of Södra Råda as a case study, this article concerns new applications of technology to contextualise and activate archive material in situ at places of cultural significance. Using a combination of augmented reality and virtual reality, we describe a process of turning historical photographs and two-dimensional reconstruction drawings into three-dimensional virtual models that can be lined up to a physical space. The leading questions for our investigation concern how archive material can be contextualised, and how the result may be made accessible in situ and contribute to place development. The result of this research suggests possibilities for using historical photographs to faithfully reconstruct lost historical spaces as three-dimensional surfaces that contextualise documentation and offer spatial information.

scholarly journals Creation of virtual 3D models of the existing architectonic structures using the web resources

Spatium ◽  
2016 ◽  
pp. 30-36 ◽  
Author(s):  
Petar Pejic ◽  
Sonja Krasic
Keyword(s):  
Laser Scanning ◽  
Three Dimensional ◽  
3D Models ◽  
Three Dimensional Model ◽  
Web Resources ◽  
Existing Structures ◽  
Software Packages ◽  
Physical Presence ◽  
The Creation ◽  
Three Dimensional Models

Digital three-dimensional models of the existing architectonic structures are created for the purpose of digitalization of the archive documents, presentation of buildings or an urban entity or for conducting various analyses and tests. Traditional methods for the creation of 3D models of the existing buildings assume manual measuring of their dimensions, using the photogrammetry method or laser scanning. Such approaches require considerable time spent in data acquisition or application of specific instruments and equipment. The goal of this paper is presentation of the procedure for the creation of 3D models of the existing structures using the globally available web resources and free software packages on standard PCs. This shortens the time of the production of a digital three-dimensional model of the structure considerably and excludes the physical presence at the location. In addition, precision of this method was tested and compared with the results acquired in a previous research.

scholarly journals Metodologia de projeto ergonômico aplicada ao desenvolvimento de bancos de arremesso de atletas paralímpicos brasileiros

2018 ◽  
Vol 11 (1) ◽  
pp. 37
Author(s):  
Carla Patricia Guimarães ◽  
Marcio Ribeiro Oliveira ◽  
Marcos Garamvölgyi Silva ◽  
José Luiz Lamosa
Keyword(s):  
Laser Scanning ◽  
Development Process ◽  
Three Dimensional ◽  
Project Team ◽  
Product Development Process ◽  
Prototype Development ◽  
Logical Sequence ◽  
Institute Of Technology ◽  
Three Dimensional Models ◽  
Design Division

The objective of this article was to present and describe the project methodology implemented in the development of five throwing frames for paralympic athletes. The process was divided into project different phases / stages, which, although following a logical sequence of development, include activities performed simultaneously. The athletes and technicians were invited to participate in technical meetings with the research group at INT. These technical meetings were held throughout the project, so that athletes and their technicians could interact with the project team of the Three-Dimensional Models Laboratories (LAMOT) and Ergonomics Laboratory (LABER) athe Industrial Design Division at the National Institute of Technology. 3D motion captured and laser scanning captured with 1D anthropometric measurements were collected in order to provide information to the bank usability designer and anthropometric dimensions of the athletes. With this information, the LAMOT / DVDI project team developed project alternatives that were presented to the athletes and technicians. The chosen project frame alternative allowed greater rigidity to the seat. Athletes participated in all subsequent stages of prototype development and final testing in use. The conclusion was that the methodology provided a logical and comprehensible structuring of the product development process for all the actors involved in the project, even from different areas of activity, and thus, could contribute in a harmonic and productive way to the final result.

Merging Thermal Cloud Points with Textured Surfaces and Three-Dimensional Models: A Clinical Case Study

2016 ◽  
Author(s):  
Giuseppe Lo Presti ◽  
Daniele Bianchini ◽  
Francesca Ceccaroni ◽  
Roberto Cioni ◽  
Cinzia Freschi ◽  
...  
Keyword(s):  
Clinical Case ◽  
Three Dimensional ◽  
Textured Surfaces ◽  
Clinical Case Study ◽  
Cloud Points ◽  
Dimensional Models ◽  
Three Dimensional Models
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