scholarly journals Use of Modern Technologies for the Conservation of Historical Heritage in Water Management

Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2895
Author(s):  
Adrian Șmuleac ◽  
Laura Șmuleac ◽  
Teodor Eugen Man ◽  
Cosmin Alin Popescu ◽  
Florin Imbrea ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Three Dimensional ◽  
Point Clouds ◽  
Scientific Paper ◽  
3D Data ◽  
Historical Monuments ◽  
3D Data Processing ◽  
3D Database ◽  
The Creation ◽  
Historical Heritage

Historical monuments represent a cultural heritage that humanity has a duty to preserve and conserve. Lately all over the world, scanning these heritage objectives has become a priority, in order to preserve in the smallest details the used architecture. The work aims to complete the cultural heritage for Sânmihaiu Român hydro technical development built between 1912 and 1915, located on the Bega River in Western Romania, through modern mobile scanning technology, Leica Pegasus Backpack, necessary for the creation of a three-dimensional (3D) documentation, for the completion of the cultural heritage, and for the creation of a 3D database. The purpose of the scientific paper is restoring Sanmihaiu Roman Hidro technical Node, subject to degradation, in order to achieve the project “The navigable Bega”, waterway connection to Serbia. Collecting method of LiDAR data is Fused Slam, the acquisition of RINNEX data being made by placing a Leica GS08 Master Station. Visualization of quality graphics has been performed in Quality Control (QC) Tools. The scanning accuracy is between 2 and 3 cm and the 3D data processing was performed with the Cyclone Model version program, with SmartPick Point and Virtual Surveyor functions. The obtained point clouds will be of a great help in order to follow in time the construction which can be used whenever it will be needed by the designers and specialists in the field of hydrotechnics.

Territorial Governance Rehabilitation of Old Cities: Taza City Example: الحكامة الترابية وتأهيل المدن العتيقة: حالة مدينة تازة (المغرب)

2020 ◽  
Vol 4 (3) ◽  
Author(s):  
El-bazoui Jaouad, Mohamed Chouitar, Abdelouaed Bouberria
Keyword(s):  
Cultural Heritage ◽  
Building Block ◽  
Effective Strategy ◽  
Urban Fabric ◽  
Historical Monuments ◽  
Ancient City ◽  
Historical Heritage ◽  
The City

The reality of historical cities of Morocco today .which is reflected in the fading and deterioration of its built framework and the loss of many of its social and economic functions has prompted many actors in the field of cultural and historical heritage to take a series of measures in order to rehabilitate them to cope with the pace of development, witnessed by its urban and social surrounding. In this context, the city of Taza is one of the ancient Moroccan cities that have a glorious history, an integrated urban fabric, and unique historical monuments. it is an essential building block of Morocco’s cultural heritage, which has played its part throughout history and withstood all the challenges it has faced. However; despite its importance the city has not received the attention it deserves for its historical value, its historical monuments are currently suffering from the continuous deterioration and fading, which necessitates the search for an effective strategy that evokes the criteria of governance as a gateway to the rehabilitation of its ancient heritage. To address this issue we will try to answer the following questions: To what extent is the territorial governance a mechanism for the rehabilitation and development of the ancient city of Taza? What are the most important rehabilitation projects of the ancient city of Taza?

scholarly journals Aspectus: A Flexible Collaboration Tool for Multimodal and Multiscalar 3D Data Exploitation

2019 ◽  
Vol 2 (2) ◽  
pp. 150-165
Author(s):  
Damien Vurpillot ◽  
Quentin Verriez ◽  
Matthieu Thivet
Keyword(s):  
Cultural Heritage ◽  
Collaborative Work ◽  
Three Dimensional ◽  
Digital Data ◽  
Expert Assessment ◽  
Practical Application ◽  
Web Based ◽  
Heritage Sites ◽  
3D Data ◽  
Tenfold Increase

High density remote survey technologies have become widespread practices. In recent years, we have seen a tenfold increase in volume of digital data acquired. Beyond this sheer amount of data, multimodal three-dimensional data exploitation has become another common challenge for specialists. The Aspectus project aims to ease the access to complex three-dimensional data and to promote collaborative work and remote expert assessment. Thus, we can get past the problem of distance and availability of the “object of expertise”, ranging from cultural heritage sites to artefacts. By extension, it enables us to circumvent the ever-present problem of destruction. Aspectus takes advantage of available open source solutions to produce a flexible web-based visualization and collaboration tool. After an overview of the theoretical framework and its technical implementation, we will discuss a practical application as part of the “Bibracte Numérique” project.

scholarly journals GEOMETRIC FEATURES ANALYSIS FOR THE CLASSIFICATION OF CULTURAL HERITAGE POINT CLOUDS

2019 ◽  
Vol XLII-2/W15 ◽  
pp. 541-548 ◽  
Author(s):  
E. Grilli ◽  
E. M. Farella ◽  
A. Torresani ◽  
F. Remondino
Keyword(s):  
Artificial Intelligence ◽  
Machine Learning ◽  
Cultural Heritage ◽  
Point Clouds ◽  
Geometric Features ◽  
3D Point Clouds ◽  
3D Data ◽  
3D Documentation ◽  
The Impact

<p><strong>Abstract.</strong> In the last years, the application of artificial intelligence (Machine Learning and Deep Learning methods) for the classification of 3D point clouds has become an important task in modern 3D documentation and modelling applications. The identification of proper geometric and radiometric features becomes fundamental to classify 2D/3D data correctly. While many studies have been conducted in the geospatial field, the cultural heritage sector is still partly unexplored. In this paper we analyse the efficacy of the geometric covariance features as a support for the classification of Cultural Heritage point clouds. To analyse the impact of the different features calculated on spherical neighbourhoods at various radius sizes, we present results obtained on four different heritage case studies using different features configurations.</p>

scholarly journals Photo Scanner 3D Survey for Monitoring Historical Monuments. the Case History of Porta Praetoria in Aosta

2011 ◽  
Vol 6 ◽  
pp. 314-322 ◽  
Author(s):  
Paolo Salonia ◽  
Tommaso Leti Messina ◽  
Andrea Marcolongo ◽  
Lorenzo Appolonia
Keyword(s):  
Cultural Heritage ◽  
New Technology ◽  
Digital Camera ◽  
Point Clouds ◽  
3D Models ◽  
Stone Decay ◽  
Decay Kinetics ◽  
Image Block ◽  
Building Site ◽  
Historical Monuments

Accessibility to cultural heritage is one of the most important factors in cultural heritage preservation, as it assures knowledge, monitoring, Public Administration management and a wide interest on cultural heritage sites. Nowdays 3D surveys give the geometric basis for an effective artefact reconstruction but most of the times 3D data are not completely and deeply investigated to extract other useful information on historical monuments for their conservation and safeguard. The Cultural Heritage Superintendence of Aosta decided to run a time continual project of monitoring of the Praetorian Roman Gate with the collaboration of the ITABC, CNR of Italy. The Praetorian Roman Gate in Aosta, Italy, of Augustus ages, is one of the most well-known roman monumental gates, it is a double gate with three arches each side, 12 meters high, 20 meters wide, made of pudding stone ashlars, Badoglio, travertine, marble blocks and other stone insertion due to restorations between 1600 and 1950. In years 2000 a final restoration intervention brought the gate at the present state of art, within the frame of a restoration and conservation building site with the purpose of treat the different decay pathologies and conditions. A complete 3D geometric survey campaign has been the first step for the monitoring of the gate morphologic changes and decay progress in time. The main purpose is to collect both quantitative data, related to the geometry of the gate, and the qualitative data, related to the chromatic change on the surface due to the stone decay. The geometric data with colour information permits to associate materials and stone pathologies to chemical or mechanical actions and to understand and analyse superficial decay kinetics. The colours survey will also permit to directly locate on the 3D model areas of different stratigraphic units. The project aims to build a rigorous quantitative-qualitative database so to be uploaded into a GIS. The GIS will become the monitoring main means. Considering the huge dimension of the gate and its urban location a multi-scale approach has been considered. Controlled and free images have been taken from the ground and the top of the gate so to reconstruct all the walls and the upper cover. A topographic survey has been done so to be able to control and relate all the different acquisitions. It has been chosen a Photo Scanner 3D system. It is a photogrammetry-based survey technology for point clouds acquisition and 3D models configuration, from digital images processing. This technology allows to obtain point clouds (xyz coordinates) with RGB information and geometries at different levels of complexity by processing a number of images taken with a limited set of constraints, with the use of a simple acquisition equipment and through an image matching algorithm (ZScan, by Menci Software). Due to the high walls of the arch gates, the higher part has been surveyed with a remote controlled drone (UAV Unmanned Aerial Vehicle) with a digital camera on it, so to take pictures up to the maximum altitude and with different shooting angles ( 90 and 45 degree). This is a new technology which permits to survey inaccessible parts of a high monument with ease and accuracy, by collecting redundant pictures later bound together by an image block algorithm. This paper aims to present the survey experience architectural monuments trough the application of a trifocal quick photogrammetric system, in surveying at different scales and for different purposes.

scholarly journals A Comparison of Volumetric Reconstruction Methods of Archaeological Deposits Using Point-Cloud Data from Ahuahu, Aotearoa New Zealand

2021 ◽  
Vol 13 (19) ◽  
pp. 4015
Author(s):  
Joshua Emmitt ◽  
Patricia Pillay ◽  
Matthew Barrett ◽  
Stacey Middleton ◽  
Timothy Mackrell ◽  
...  
Keyword(s):  
New Zealand ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Point Clouds ◽  
Terrestrial Lidar ◽  
Cloud Data ◽  
Aotearoa New Zealand ◽  
3D Data ◽  
Reconstruction Methods ◽  
Localization And Mapping

Collection of 3D data in archaeology is a long-standing practice. Traditionally, the focus of these data has been visualization as opposed to analysis. Three-dimensional data are often recorded during archaeological excavations, with the provenience of deposits, features, and artefacts documented by a variety of methods. Simple analysis of 3D data includes calculating the volumes of bound entities, such as deposits and features, and determining the spatial relationships of artifacts within these. The construction of these volumes presents challenges that originate in computer-aided design (CAD) but have implications for how data are used in archaeological analysis. We evaluate 3D construction processes using data from Waitetoke, Ahuahu Great Mercury Island, Aotearoa, New Zealand. Point clouds created with data collected by total station, photogrammetry, and terrestrial LiDAR using simultaneous localization and mapping (SLAM) are compared, as well as different methods for generating surface area and volumes with triangulated meshes and convex hulls. The differences between methods are evaluated and assessed in relation to analyzing artifact densities within deposits. While each method of 3D data acquisition and modeling has advantages in terms of accuracy and precision, other factors such as data collection and processing times must be considered when deciding on the most suitable.

A novel scan registration method based on the feature-less global descriptor – spherical entropy image

2017 ◽  
Vol 44 (4) ◽  
pp. 552-563 ◽  
Author(s):  
Bo Sun ◽  
Yadan Zeng ◽  
Houde Dai ◽  
Junhao Xiao ◽  
Jianwei Zhang
Keyword(s):  
Mobile Robotics ◽  
High Reliability ◽  
Three Dimensional ◽  
Point Clouds ◽  
Registration Method ◽  
Content Type ◽  
Spherical Fourier Transform ◽  
3D Point Clouds ◽  
3D Data Processing ◽  
Scan Registration

Purpose This paper aims to present the spherical entropy image (SEI), a novel global descriptor for the scan registration of three-dimensional (3D) point clouds. This paper also introduces a global feature-less scan registration strategy based on SEI. It is advantageous for 3D data processing in the scenarios such as mobile robotics and reverse engineering. Design/methodology/approach The descriptor works through representing the scan by a spherical function named SEI, whose properties allow to decompose the six-dimensional transformation into 3D rotation and 3D translation. The 3D rotation is estimated by the generalized convolution theorem based on the spherical Fourier transform of SEI. Then, the translation recovery is determined by phase only matched filtering. Findings No explicit features and planar segments should be contained in the input data of the method. The experimental results illustrate the parameter independence, high reliability and efficiency of the novel algorithm in registration of feature-less scans. Originality/value A novel global descriptor (SEI) for the scan registration of 3D point clouds is presented. It inherits both descriptive power of signature-based methods and robustness of histogram-based methods. A high reliability and efficiency registration method of scans based on SEI is also demonstrated.

scholarly journals Three-dimensional model of the Rzeczka object (the Riese Complex, Sowie Range) as an enhancement of the comprehensive geotourism potential of an underground tourist route

2018 ◽  
Vol 55 ◽  
pp. 00015
Author(s):  
Katarzyna Kądziołka ◽  
Damian Kasza ◽  
Wojciech J. Milczarek
Keyword(s):  
Laser Scanning ◽  
Numerical Models ◽  
Three Dimensional ◽  
Point Clouds ◽  
Digital Data ◽  
Measurement Technology ◽  
Three Dimensional Model ◽  
Historic Areas ◽  
The Creation ◽  
Three Dimensional Models

The dynamic development of measurement technology based on the use of laser scanners allows for fast transfer of information, related to terrestrial data, to a virtual environment and enables the creation of three-dimensional models. Because of the growing demand for underground areas inventory, especially historic areas, the creation of 3D numerical models increases in popularity. It allows to increase the geotouristic potential of a particular area and to use solutions in support of the safety of tourists as well as the safety of area itself. The development of the terrestrial laser scanning technique is accompanied simultaneously by the development of means of digital data processing that was obtained in the form of point clouds. Those means use the commercial software as well as software available in the open source system. Both computing environments use algorithms enabling the processing of huge collections of points in automatized mode by using a number of open-access algorithms either freeware or dedicated. The methodology of numerical models development, described in this article, has been presented on the example of underground object “Rzeczka” (“Riese” Complex) located at the Sowie Range (SW Poland).

scholarly journals HBIM, 3D drawing and virtual reality for archaeological sites and ancient ruins

2020 ◽  
Vol 11 (23) ◽  
pp. 16 ◽  
Author(s):  
Fabrizio Banfi
Keyword(s):  
Virtual Reality ◽  
Laser Scanning ◽  
New Technologies ◽  
Three Dimensional ◽  
Point Clouds ◽  
Archaeological Sites ◽  
Digital Information ◽  
Holistic Model ◽  
Digital Modelling ◽  
The Creation

<p class="VARAbstract">Data collection, documentation and analysis of the traces of ancient ruins and archaeological sites represent an inestimable value to be handed down to future generations. Thanks to the development of new technologies in the field of computer graphics, Building Information Modelling (BIM), Virtual Reality (VR) and three-dimensional (3D) digital survey, this research proposes new levels of interactivity between users and virtual environments capable of communicating the tangible and intangible values of remains of ancient ruins. In this particular field of development, 3D drawing and digital modelling are based on the application of new Scan-to-HBIM-to-VR specifications capable of transforming simple points (point clouds) into mathematical models and digital information. Thanks to the direct application of novel grades of generation (GOG) and accuracy (GOA) it has been possible to go beyond the creation of complex models for heritage BIM (HBIM) and explore the creation of informative 3D representation composed by sub-elements (granular HBIM objects) characterized by a further level of knowledge. The value of measurement, 3D drawing and digital modelling have been investigated from the scientific point of view and oriented to the generation of a holistic model able to relate both with architects, engineers, and surveyors but also with archaeologists, restorers and virtual tourists.</p><p>Highlights:</p><ul><li><p>The concept of ‘granular HBIM objects’ is introduced to show the unexpressed potential of the scan-to-BIM process for different types of data analyses and uses.</p></li><li><p>Sustainable development of VR projects for archaeological sites is proposed, allowing users to discover the hidden historical values with new levels of interactivity and information.</p></li><li><p>HBIM and VR projects have been improved through the integration of laser scanning, digital photogrammetry (terrestrial and UAV) and advanced modelling techniques.</p></li></ul>

scholarly journals MULTIPLE USES OF A 3D POINT CLOUD: THE CASTLE OF FRANCHIMONT (PROVINCE OF LIÈGE, BELGIUM)

2017 ◽  
Vol XLII-2/W5 ◽  
pp. 475-481
Author(s):  
A. Luczfalvy Jancsó ◽  
B. Jonlet ◽  
P. Hallot ◽  
P. Hoffsummer ◽  
R. Billen
Keyword(s):  
Information System ◽  
Cultural Heritage ◽  
Point Cloud ◽  
Point Clouds ◽  
3D Point Cloud ◽  
3D Point Clouds ◽  
Multiple Uses ◽  
The Creation ◽  
Made In

This paper presents the identified obstacles, needs and selected solutions for the study of the medieval castle of Franchimont, located in the province of Liège (Belgium). After taking into account the requirements from all the disciplines at work as well as the problems that would have to be tackled, the creation of a 3D point cloud was decided. This solution would be able to deal with the characteristics and needs of a research involving building archaeology and related fields. The decision was made in order to manage all of the available data and to provide a common working tool for every involved cultural heritage actor. To achieve this, the elaboration of an Archaeological Information System based on 3D point clouds as a common virtual workspace is being taken into consideration.

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