scholarly journals Multi-Scale Modeling of the Basilica of San Pietro in Tuscania (Italy). From 3D Data to 2D Representation

2011 ◽  
Vol 6 ◽  
pp. 300-306
Author(s):  
Filiberto Chiabrando ◽  
Dario Piatti ◽  
Fulvio Rinaudo

The Basilica of San Pietro is a Romanic architecture located in the municipality of Tuscania in the Lazio Region about 100 km far from Rome. In 1971 the apse dome collapsed during the earthquake and the important fresco of a Christ Pantocrator was destroyed. In 1975 the dome was reconstructed using reinforced concrete.In 2010 an integrated survey of the Church has been performed using LiDAR techniques integrated with photogrammetric and topographic methodologies in order to realize a complete 2D documentation of the Basilica of San Pietro. Thanks to the acquired data a complete multi-scale 3D model of the Church and of the surroundings was realized.The aim of this work is to present different strategies in order to realize correct documentations for Cultural Heritage knowledge, using typical 3D survey methodologies (i. e. LiDAR survey and photogrammetry).After data acquisition and processing, several 2D representations were realized in order to carry out traditional supports for the different actors involved in the conservation plans; moreover, starting from the 2D drawing a simplified 3D modeling methodology has been followed in order to define the fundamental geometry of the Basilica and the surroundings: the achieved model could be useful for a small architectural scale description of the structure and for the documentation of the surroundings. For the aforementioned small architectural scale model, the 3D modeling was realized using the information derived from the 2D drawings with an approach based on the Constructive Solid Geometry. Using this approach the real shape of the object is simplified. This methodology is employed in particular when the shape of the structures is simple or to communicate new project ideas of when, as in our case, the aim is to give an idea of the complexity of an architectural Cultural Heritage. In order to follow this objective, a small architectural scale model was realized: the area of the Civita hill was modeled using the information derived from the 1:5000 scale map contours; afterwards the Basilica was modeled in a CAD software using the information derived from the 2D drawings of the Basilica. Finally, a more detailed 3D model was realized to describe the real shape of the transept.  All this products were realized thanks to the data acquired during the performed survey. This research underlines that a complete 3D documentation of a Cultural Heritage during the survey phase allows the final user to derive all the products that could be necessary for a correct knowledge of the artifact.

2020 ◽  
Vol 2 (2) ◽  
pp. 62-68
Author(s):  
Ahmad Jahrudin ◽  
Pradityo Riyadi

The exploration of oil and gas, especially in Indonesia is experiencing various challenges and varying degrees of difficulty. In this research, the researcher tries to make a 3D modeling from gravity data, where the model will show a structure to determine the central coordinates for drilling. Pertamina has carried out drilling at a location in NTT and it turns out that the well does not produce oil and gas, even though the log data reads an oil showing that the area should have the prospect of producing oil, but the wells that have been drilled do not show any oil or gas, therefore the researchers tried to make a 3D model determine the structure around the production well. In this research, it was seen that the area of the previous drilling point had deviated from the top of the up dome and it was also seen in this structure that the area was deviated by about 3 kilometers and depth must exceed 526 m, the researcher concluded that the drilling point must be at X, Y coordinates.


2018 ◽  
Vol 7 (9) ◽  
pp. 356 ◽  
Author(s):  
Jia Li ◽  
Yongxiang Yao ◽  
Ping Duan ◽  
Yun Chen ◽  
Shuang Li ◽  
...  

Oblique imagery obtained from an Unmanned Aerial Vehicle (UAV) has been widely applied to large-scale three-dimensional (3D) reconstruction; however, the problems of partially missing model details caused by such factors as occlusion, distortion, and airflow, are still not well resolved. In this paper, a loop-shooting-aided technology is used to solve the problem of details loss in the 3D model. The use of loop-shooting technology can effectively compensate for losses caused by occlusion, distortion, or airflow during UAV flight and enhance the 3D model details in large scene- modeling applications. Applying this technology involves two key steps. First, based on the 3D modeling construction process, the missing details of the modeling scene are found. Second, using loop-shooting image sets as the data source, incremental iterative fitting based on aerotriangulation theory is used to compensate for the missing details in the 3D model. The experimental data used in this paper were collected from Yunnan Normal University, Chenggong District, Kunming City, Yunnan Province, China. The experiments demonstrate that loop-shooting significantly improves the aerotriangulation accuracy and effectively compensates for defects during 3D large-scale model reconstruction. In standard-scale distance tests, the average relative accuracy of our modeling algorithm reached 99.87% and achieved good results. Therefore, this technique not only optimizes the model accuracy and ensures model integrity, but also simplifies the process of refining the 3D model. This study can be useful as a reference and as scientific guidance in large-scale stereo measurements, cultural heritage protection, and smart city construction.


2014 ◽  
Vol 644-650 ◽  
pp. 4121-4124
Author(s):  
Qiang Chen ◽  
Li Mei Xu

This paper mainly studies modeling and recognition of 3D English words’ images. With the development of secondary modeling, segmentation and recognition theories and the application of evolution computation in 3D modeling and recognition, this paper analyzes the issues of parameter fitting in the 3D model, multi-object scene segmentation and parts recognition aiming at the 3D data features in the English words. The 3D model is used as the primitives part to model and segment the scenes and the group parallel evolution and the relationship matching theories are introduced into the 3D modeling and recognition to deeply identify the rare English words’ images. The paper searches for a practical and efficient three-dimensional modeling and identification scheme.


2018 ◽  
Vol 7 (12) ◽  
pp. 463 ◽  
Author(s):  
Chris Panou ◽  
Lemonia Ragia ◽  
Despoina Dimelli ◽  
Katerina Mania

In this paper, we present the software architecture of a complete mobile tourist guide for cultural heritage sites located in the old town of Chania, Crete, Greece. This includes gamified components that motivate the user to traverse the suggested interest points, as well as technically challenging outdoors augmented reality (AR) visualization features. The main focus of the AR feature is to superimpose 3D models of historical buildings in their past state onto the real world, while users walk around the Venetian part of Chania’s city, exploring historical information in the form of text and images. We examined and tested registration and tracking mechanisms based on commercial AR frameworks in the challenging outdoor, sunny environment of a Mediterranean town, addressing relevant technical challenges. Upon visiting one of three significant monuments, a 3D model displaying the monument in its past state is visualized onto the mobile phone’s screen at the exact location of the real-world monument, while the user is exploring the area. A location-based experience was designed and integrated into the application, enveloping the 3D model with real-world information at the same time. The users are urged to explore interest areas and unlock historical information, while earning points following a gamified experience. By combining AR technologies with location-aware and gamified elements, we aim to promote the technologically enhanced public appreciation of cultural heritage sites and showcase the cultural depth of the city of Chania.


Author(s):  
F. Matrone ◽  
E. Colucci ◽  
V. De Ruvo ◽  
A. Lingua ◽  
A. Spanò

<p><strong>Abstract.</strong> This work describes the different attempts and the consequent results derived from the integration of an HBIM model into an already structured spatial database (DB) and its 3D visualisation in a GIS project.</p><p>This study is connected to the European ResCult (Increasing Resilience of Cultural Heritage) project where a DB for multiscale analyses was defined. To test the methodology proposed, the case study of Santa Maria dei Miracoli church in Venice was chosen since it represents a complex architectural heritage piece in a risk zone, it has been subject to a vast restoration intervention in the recent past but a digital documentation and model concerning it was missing.</p><p>The 3D model of the church was structured in Revit as a HBIM, with the association of different kind of information and data related to the architectural elements by means of ‘shared parameters’ and ‘system families’. This procedure allows to reach an even higher Level of Detail (LOD4), but lead to some issues related to the semantic and software interoperability. To solve these problems the existing DB for the resilience of cultural heritage was extended adding a new entity representing the architectural elements designed in the BIM project.</p><p>The aim of the test is to understand how the data and attributes inserted in the HBIM are converted and handled when dealing with a GIS DB, stepping from the IFC to the CityGML standard, through the FME software.</p>


Author(s):  
C. Bolognesi ◽  
D. Aiello

<p><strong>Abstract.</strong> The aim of this paper is to demonstrate the power of the new digitization technologies and, in particular, of Virtual Reality (VR) to document and communicate the knowledge of Cultural Heritage (CH) and to shorten the distance between man and his history, enhancing architectural monuments or art masterpieces (even when they are somehow inaccessible), allowing original educational storytelling and producing innovative ways to learn and enjoy culture. The ultimate goal of this research is the virtual and interactive reconstruction of an important historical site, characterized by a great beauty as well as by a high artistic value: the complex of Santa Maria delle Grazie, in Milan. In order to test an effective digitization workflow, the experimentation focused on the areas of the convent that are closer to the church and that have been characterized by a troubled history: The Cloister of the Frogs, the Cloister of the Prior, the Old Sacristy, the Small Sacristy and the New Sacristy. These environments have been surveyed by combining photogrammetry and terrestrial laser scanning; then they have been modelled as NURBS or reconstructed in the form of meshes. In the end, the entire 3D model was imported in a game engine in order to create a realistic VR simulation, able to revive the convent’s history in a way that no written document could better explain.</p>


Resources ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 43
Author(s):  
Pavel Hronček ◽  
Bohuslava Gregorová ◽  
Dana Tometzová ◽  
Mário Molokáč ◽  
Ladislav Hvizdák

The study provides a methodology for 3D model processing of historic mining landscape, and its features as mining digital cultural heritage with the possibility of using new visualization means in mining tourism. Historic mining landscapes around the towns of Gelnica (eastern Slovakia) had been chosen for the case study. The underground mining spaces around Gelnica, which are currently inaccessible to clients of mining tourism, were processed using 3D modeling. Historically, correctly processed 3D models of mining spaces enable customers of mining tourism to virtually travel not only in space, but what is most important, in time as well. The up-to-date computer-generated virtual mining heritage in the form of 3D models can be viewed via the Internet from different perspectives and angles. The models created this way are currently the latest trend in developing mining tourism.


Electronics ◽  
2022 ◽  
Vol 11 (2) ◽  
pp. 195
Author(s):  
Nikolaos Partarakis ◽  
Xenophon Zabulis ◽  
Nikolaos Patsiouras ◽  
Antonios Chatjiantoniou ◽  
Emmanouil Zidianakis ◽  
...  

An approach to the representation and presentation of spatial and geographical context of cultural heritage sites is proposed. The goal is to combine semantic representations of social and historical context with 3D representations of cultural heritage sites acquired through 3D reconstruction and 3D modeling technologies, to support their interpretation and presentation in education and tourism. Several use cases support and demonstrate the application of the proposed approach including immersive craft and context demonstration environment and interactive games.


2021 ◽  
pp. 150-155
Author(s):  
V. A. Kostesha ◽  
O. A. Marycheva ◽  
I. K. Kolesnikova

The article is about a Trimble TX8 laser scanner used for creation a 3D model of a federal cultural heritage site. For a better disclosure of the topic, the authors explained the main technical parameters of the device, the principles of its operation and the areas of actual application. The accuracy of this scanner and the possibility of using it to preserve the exact parameters of cultural heritage objects have been analyzed here as well. The authors also analyzed the main positive and negative aspects of laser 3D scanning and 3D modeling.


Author(s):  
Mónica Sánchez

This paper briefly shows the skills acquired not only in the field of Conservation-Restoration, but also in Virtual Restoration as applied to Cultrual Heritage. The work under consideration is the Mayor Altarpiece of the old Convent of San Francsico, today Church of San Esteban Protomartir in San Esteban de Gormaz, Soria. Built in 1628 in one of the most important workshops of the Diocese, in 1985 renovation works and refurbishment of the church had uncovered wall paintings in advocation to the founder of the Order behind the wooden reredos, one of the few examples of pictorial altarpieces preserved in Spain that forced the transfer of the wooden altarpiece to a shrine in the same locality where it is currently disassembled.This Cultural Property is a great example of heritage on which to apply the techniques of 3D modeling for virtual restoration and reconstruction of the environment as well, which aims to attempt visual recovery and potential unit without counyerfeiting, as methods of conservation, restoration and dissemination of Cultural Heritage.


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