scholarly journals 3D IMAGE-BASED SURVEYING OF THE SAFE OF THE OBELLIO FIRMO <i>DOMUS</i> IN POMPEII

2020 ◽  
Vol XLIII-B2-2020 ◽  
pp. 1389-1394
Author(s):  
C. Francolini ◽  
V. A. Girelli ◽  
G. Bitelli
Keyword(s):  
Cultural Heritage ◽  
Structure From Motion ◽  
Three Dimensional ◽  
Interesting Case ◽  
3D Modelling ◽  
3D Image ◽  
Ancient City ◽  
Over Time

Abstract. This paper shows an application of image-based 3D modelling concerning an interesting case study in the field of Cultural Heritage, a safe located in the Obellio Firmo domus in Pompeii (Italy), one of the largest and most complex houses in the ancient city. The object was strongly deformed by the eruption of Vesuvius in 79 A.D. and is currently protected by a permanent glass that helps to preserve it over time. The surveying activities and processing methodology is explained, based on Multi-View Structure from Motion technique, as well as the unconventional solution adopted during the images acquisition. Finally, an attempt will be presented to reconstruct the hypothetical original three-dimensional appearance and shape of the safe.

scholarly journals 3D RECONSTRUCTION AND PRESENTATION OF CULTURAL HERITAGE: AR AND VR EXPERIENCES AT THE MUSEO D’ARTE ORIENTALE DI TORINO

2021 ◽  
Vol XLVI-M-1-2021 ◽  
pp. 697-704
Author(s):  
R. Spallone ◽  
F. Lamberti ◽  
M. Guglielminotti Trivel ◽  
F. Ronco ◽  
S. Tamantini
Keyword(s):  
Virtual Reality ◽  
Structure From Motion ◽  
Low Cost ◽  
Three Dimensional ◽  
3D Modelling ◽  
Interior Space ◽  
Virtual Reconstruction ◽  
Recent Developments ◽  
Set Up

Abstract. For years, virtual reconstruction in the figurative arts, and sculpture, in particular, has been developing and consolidating. The workflow from the acquisition to three-dimensional modelling and to the integration of missing parts, has been optimized through processes entirely implemented in the digital dimension. The most recent developments in augmented reality and virtual reality technologies, together with the possibility of using low-cost and widely available devices, have made it possible to establish new links between the real and the virtual. The experiences presented in this paper comes up within the agreement between the Politecnico di Torino and the Museo d’Arte Orientale (MAO). The workflow set up for this research involves: structure from motion (SfM) survey, 3D modelling, and 3D philological reconstruction, then develops a proposal to implement augmented and virtual reality experiences aimed at the communication and fruition of the exhibits. The case study concerns two Japanese statues, and proposes their visualisation with the respective weapons virtually reconstructed, and through VR, involving the reconstruction of the interior space of a temple recognised as philologically compatible with the location of the statues within a statuary complex.

scholarly journals A CityGML Multiscale Approach for the Conservation and Management of Cultural Heritage: The Case Study of the Old Town of Taranto (Italy)

2020 ◽  
Vol 9 (7) ◽  
pp. 449
Author(s):  
Massimiliano Pepe ◽  
Domenica Costantino ◽  
Vincenzo Saverio Alfio ◽  
Maria Giuseppa Angelini ◽  
Alfredo Restuccia Garofalo
Keyword(s):  
Information System ◽  
Cultural Heritage ◽  
Spatial Planning ◽  
Multiscale Approach ◽  
File Formats ◽  
Ancient City ◽  
Planning Processes ◽  
The City ◽  
Conservation And Management

The aim of this article is to provide a dedicated approach to the realisation of a CityGML model for the valorisation and the conservation of existing cultural heritage. In particular, for the ancient city of Taranto (Italy), several levels of details (LODs) have been built. CityGML models in LOD1 for the most representative periods were realised, which were characterised by urban changes from the mid-1800s until today. To achieve this aim, great importance was devoted to the process of integration of the different file formats. A geographic information system (GIS) approach has been put in place for the construction of the CityGML model in LOD1. In addition, the study also focused on the realisation of a CityGML model in LOD3 of a bridge of a particular historical and architectural interest, called “Ponte di Porta Napoli”, also situated in the city of Taranto. In the latter case, the CityGML model was realised starting from the geomatics survey. Therefore, the project structured in this way represents an important tool for the sharing of (georeferenced) territorial information. The CityGML models represent a valid support for spatial planning processes and measures for the protection, monitoring and conservation of urban elements.

scholarly journals Three-Dimensional Reconstruction of Blood Vessels of the Human Retina by Fractal Interpolation

2015 ◽  
Vol 6 (3) ◽  
Author(s):  
Hichem Guedri ◽  
Jihen Malek ◽  
Hafedh Belmabrouk
Keyword(s):  
Blood Vessels ◽  
3D Model ◽  
Three Dimensional ◽  
Fractal Interpolation ◽  
Human Retina ◽  
3D Image ◽  
Random Fractal ◽  
Dimensional Reconstruction ◽  
Data Points

In this work, data from two-dimensional (2D) images of the human retina were taken as a case study. First, the characteristic data points had been removed using the Douglas–Peucker (DP) method, and subsequently, more data points were added using random fractal interpolation approach, to reconstruct a three-dimensional (3D) model of the blood vessel. By visualizing the result, we can see that all the small blood vessels in the human retina are more visible and detailed. This algorithm of 3D reconstruction has the advantage of being fast with calculation time less than 40 s and also can reduce the 3D image storage level on a disk with a reduction ratio between 78% and 96.65%.

Subjective evaluations of multiple three-dimensional displays by a stereo-deficient viewer: an interesting case study

2014 ◽  
Author(s):  
John P. McIntire ◽  
Sharon A. Ellis ◽  
Lawrence K. Harrington ◽  
Paul R. Havig
Keyword(s):  
Three Dimensional ◽  
Interesting Case ◽  
Subjective Evaluations

scholarly journals Cultural Heritage Restoration of a Hemispherical Vault by 3D Modelling and Projection of Video Images with Unknown Parameters and from Unknown Locations

2021 ◽  
Vol 11 (12) ◽  
pp. 5323
Author(s):  
Jose Herraez ◽  
Jose L. Denia ◽  
Enrique Priego ◽  
Pablo Navarro ◽  
Maria T. Martin ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Cultural Heritage ◽  
3D Modelling ◽  
3D Image ◽  
Surface Geometry ◽  
Unknown Parameters ◽  
Mathematical Development ◽  
Video Images ◽  
Virtual Images ◽  
Architectural Restoration

Reverse engineering applied to architectural restoration for the reconstruction of structural surfaces depends on metric precision. Sometimes there are elements on these surfaces whose value is even higher than the building itself. This is the case for many churches whose ceilings have pictorial works of art. Reconstruction requires the existence of some identifiable remainder and/or a surface geometry that enables mathematical development. In our case, the vault has an irregular hemispherical geometry (without possible mathematical development), and there are no significant remains of the painting (which was destroyed by a fire). Through the 3D modelling of the irregular vault and two historic frames with a camera of unknown geometry, an inverse methodology is designed to project the original painting without metric deformations. For this, a new methodology to locate the camera positions is developed. After, a 3D virtual mathematical model of the complete image on the vault is calculated, and from it, partial 3D virtual images are automatically calculated depending on the variable unknown positions of the video cannons (distributed along the upper corridor of the apse) that will project them (visually forming a perfect complete 3D image).

scholarly journals Effect of Commercialization on Tourists’ Perceived Authenticity and Satisfaction in the Cultural Heritage Tourism Context: Case Study of Langzhong Ancient City

2021 ◽  
Vol 13 (12) ◽  
pp. 6847
Author(s):  
Tonghao Zhang ◽  
Ping Yin ◽  
Yuanxiang Peng
Keyword(s):  
Cultural Heritage ◽  
Structural Equation ◽  
Heritage Tourism ◽  
Theory Development ◽  
Empirical Support ◽  
Tourist Satisfaction ◽  
Ancient City ◽  
Relationship Model ◽  
Cultural Heritage Tourism

Although some studies claim that tourism commercialization can promote the authentic experience and behaviour of tourists, there is a lack of empirical support. The main purpose of this study is to identify whether tourism commercialization can positively impact tourists’ perceived authenticity and tourist satisfaction in the context of cultural heritage tourism. We divide tourism authenticity into objective authenticity, constructive authenticity, existential authenticity and postmodern authenticity and propose a relationship model of tourism commercialization, the four authenticities, tourist satisfaction and loyalty. A survey was conducted in Langzhong Ancient City, a representative millennium-old county in China. A total of 618 valid domestic tourist questionnaires were collected. The partial least squares structural equation modelling (PLS-SEM) suitable for theory development was used for the conceptual model validation. The results indicate that tourism commercialization positively affects objective, constructive, existential and postmodern authenticity and tourist satisfaction; the four authenticities positively affect tourist satisfaction, while only objective and existential authenticity and tourist satisfaction positively affect tourist loyalty. Theoretical and practical implications are discussed.

scholarly journals Decay Assessment of Stone-Built Cultural Heritage: The Case Study of the Cosenza Cathedral Façade (South Calabria, Italy)

2021 ◽  
Vol 13 (19) ◽  
pp. 3925
Author(s):  
Antonio Donato ◽  
Luciana Randazzo ◽  
Michela Ricca ◽  
Natalia Rovella ◽  
Matteo Collina ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Multidisciplinary Approach ◽  
South Italy ◽  
Damage Indices ◽  
Relative Damage ◽  
Over Time ◽  
Selection Of

This study aims to assess the different decay phenomena affecting the Cosenza Cathedral façade (Calabria, South Italy) through the evaluation of the relative damage indices. For this goal, a multidisciplinary approach was applied exploiting both nondestructive and microdestructive techniques. Such a combination enabled proposing an intervention priority scale that can be helpful to institutions when planning a prompt restoration intervention. The results suggest the efficiency of this approach to obtain a multidisciplinary diagnostic and conservation system for the management and valorization of the Cultural Heritage also in terms of monitoring, maintenance, and selection of the most suitable restoration procedures over time.

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