scholarly journals UAV platforms for cultural heritage survey: first results

2014 ◽  
Vol II-5 ◽  
pp. 227-234 ◽  
Author(s):  
M. Lo Brutto ◽  
A. Garraffa ◽  
P. Meli
Keyword(s):  
Cultural Heritage ◽  
Archaeological Site ◽  
3D Models ◽  
Land Art ◽  
Aerial Photogrammetry ◽  
First Results ◽  
Aerial Vehicle ◽  
Flight Parameters ◽  
High Level ◽  
Different Characteristics

The use of Unmanned Aerial Vehicle (UAV) is becoming very common for photogrammetric survey especially due to numerous advantages compared to "traditional" aerial photogrammetry. The work carried out describes the first results obtained using different UAV systems for Cultural Heritage surveys. The study was performed acquiring two different datasets on an archaeological site and a "land art" site respectively. These datasets have different characteristics in relation to the extension of the surveyed areas, the used platform, the flight parameters. A Computer Vision approach has been used to produce 3D models and ortho-images with a very high level of detail. Some tests were also carried out to evaluate the metric accuracy of the images orientations and 3D models.

scholarly journals HBIM FOR ARCHAEOLOGICAL SITES: FROM SFM BASED SURVEY TO ALGORITHMIC MODELING

2019 ◽  
Vol XLII-2/W9 ◽  
pp. 57-63 ◽  
Author(s):  
V. Bagnolo ◽  
R. Argiolas ◽  
A. Cuccu
Keyword(s):  
Cultural Heritage ◽  
Geometric Modeling ◽  
New Technologies ◽  
Information Modeling ◽  
Archaeological Sites ◽  
Ongoing Research ◽  
Archaeological Data ◽  
Modeling Process ◽  
First Results ◽  
Different Characteristics

<p><strong>Abstract.</strong> The implementation of new technologies often leads research towards experimentation with new methodological approaches. The BIM process applied in cultural heritage is increasingly consolidating its practices, expanding its potential even in the field of archaeological research. Integrating archaeological data into BIM models has clear benefits but, due to the complexity of the involved elements, archaeological case studies can fit effectively into the BIM process only with the creation of semantic-aware libraries implementing dedicated objects. Cultural heritage can advantage of BIM-based knowledge management only integrating approaches and tools with different characteristics from those commonly used in BIM workflows. In the phase of the geometric modeling process, following that of the survey process and preparatory to the subsequent information modeling process, when the detected geometries are not easily traceable to libraries of pre-compiled objects, an alternative to the so-called "Scan to BIM" local modeling can be represented by algorithmic modeling. The paper, focusing on the geometric modelling phase of the HBIM process, presents first results and prospective tasks of an ongoing research project on the last architectural phase of the colonnade of a multilayered temple in the Antas valley in Sardinia (Italy), affected by imposing works of anastylosis and restoration.</p>

scholarly journals INTERACTIVE ONLINE VISUALIZATION OF COMPLEX 3D GEOMETRIES

2019 ◽  
Vol XLII-2/W9 ◽  
pp. 173-180 ◽  
Author(s):  
A.-M. Boutsi ◽  
C. Ioannidis ◽  
S. Soile
Keyword(s):  
3D Model ◽  
Complex Geometry ◽  
User Interaction ◽  
Archaeological Site ◽  
3D Models ◽  
Web Browser ◽  
Metadata Repository ◽  
3D Scene ◽  
High Level

<p><strong>Abstract.</strong> In the last decade 3D datasets of the Cultural Heritage field have become extremely rich and high detailed due to the evolution of the technologies they derive from. However, their online deployment, both for scientific and general public purposes is usually deficient in user interaction and multimedia integration. A single solution that efficiently addresses these issues is presented in this paper. The developed framework provides an interactive and lightweight visualization of high-resolution 3D models in a web browser. It is based on 3D Heritage Online Presenter (3DHOP) and Three.js library, implemented on top of WebGL API. 3DHOP capabilities are fully exploited and enhanced with new, high level functionalities. The approach is especially suited to complex geometry and it is adapted to archaeological and architectural environments. Thus, the multi-dimensional documentation of the archaeological site of Meteora, in central Greece is chosen as the case study. Various navigation paradigms are implemented and the data structure is enriched with the incorporation of multiple 3D model viewers. Furthermore, a metadata repository, comprises ortho-images, photographic documentation, video and text, is accessed straight forward through the inspection of the main 3D scene of Meteora by a system of interconnections.</p>

scholarly journals Aerial Photogrammetry in the American West: Documenting the Construction of Cattle Water Tanks by Texas Cowboys

Heritage ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 1899-1911
Author(s):  
Stance Hurst ◽  
Eileen Johnson ◽  
Doug Cunningham ◽  
Glenn Fernandez-Cespedes
Keyword(s):  
Surface Water ◽  
Cultural Heritage ◽  
Unmanned Aerial Vehicle ◽  
Similar Pattern ◽  
American West ◽  
Left Behind ◽  
Aerial Photogrammetry ◽  
Aerial Vehicle ◽  
Water Tanks ◽  
Land Changes

Aerial photogrammetry is increasingly being used to discover, document, and interpret the cultural heritage of landscapes. Information on the constructed cultural heritage left behind by the first cattle ranchers in the American West is being lost as the land is transformed and modified, and stewardship of the land changes across generations. An unmanned aerial vehicle (UAV) has been used in this research to record and interpret two surface water cattle tanks constructed by Texas cowboys in the mid-1880s. Similar size rocks have been used and placed in a similar pattern across the walls of both tanks. This similarity suggests both tanks were constructed at the same time. This research also demonstrates that UAV photogrammetry can be used to rapidly record and analyze the constructed cultural heritage of American West cowboys.

Comparing Quality of Aerial Photogrammetry and 3D Laser Scanning Methods for Creating 3D Models of Objects

2017 ◽  
Author(s):  
Ignas Daugėla ◽  
Juratė Sužiedelytė Visockienė ◽  
Arminas Stanionis ◽  
Eglė Tumelienė ◽  
Urtė Antanavičiūtė ◽  
...  
Keyword(s):  
Spatial Data ◽  
Laser Scanning ◽  
Three Dimensional ◽  
3D Models ◽  
Unmanned Aircraft ◽  
Quality Analysis ◽  
Aerial Photogrammetry ◽  
Building Facades ◽  
Special Software ◽  
High Level

Latest technologies are modern and productive, therefore they are increasingly becoming integral part of any engineering work. Information about real-world objects are collected very quickly and accurately using either spatial data of a terrestrial 3D laser scanners or photographic material obtained from unmanned aircraft vehicle (UAV). After processing data with special software three-dimensional spatial data of objects are obtained, which use is extensive. These data are needed for building facades measurements and inventory, construction, environmental studies, mining, archeology, civil engineering works and for building infrastructure modeling (BIM) systems that are currently being integrated in Lithuania. The result should ensure a high level of accuracy and quality. The article examines 3D modeling using different methods of the selected object. Systems characteristics, quality analysis of 3D models, recommendations and conclusions has been made.

Low-cost 3D scanning systems for cultural heritage documentation

2020 ◽  
Vol 10 (4) ◽  
pp. 437-455 ◽  
Author(s):  
Quentin Kevin Gautier ◽  
Thomas G. Garrison ◽  
Ferrill Rushton ◽  
Nicholas Bouck ◽  
Eric Lo ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Real Time ◽  
Low Cost ◽  
Three Dimensional ◽  
Archaeological Site ◽  
3D Models ◽  
Depth Sensor ◽  
Depth Sensing ◽  
Content Type ◽  
Localization And Mapping

PurposeDigital documentation techniques of tunneling excavations at archaeological sites are becoming more common. These methods, such as photogrammetry and LiDAR (Light Detection and Ranging), are able to create precise three-dimensional models of excavations to complement traditional forms of documentation with millimeter to centimeter accuracy. However, these techniques require either expensive pieces of equipment or a long processing time that can be prohibitive during short field seasons in remote areas. This article aims to determine the effectiveness of various low-cost sensors and real-time algorithms to create digital scans of archaeological excavations.Design/methodology/approachThe authors used a class of algorithms called SLAM (Simultaneous Localization and Mapping) along with depth-sensing cameras. While these algorithms have largely improved over recent years, the accuracy of the results still depends on the scanning conditions. The authors developed a prototype of a scanning device and collected 3D data at a Maya archaeological site and refined the instrument in a system of natural caves. This article presents an analysis of the resulting 3D models to determine the effectiveness of the various sensors and algorithms employed.FindingsWhile not as accurate as commercial LiDAR systems, the prototype presented, employing a time-of-flight depth sensor and using a feature-based SLAM algorithm, is a rapid and effective way to document archaeological contexts at a fraction of the cost.Practical implicationsThe proposed system is easy to deploy, provides real-time results and would be particularly useful in salvage operations as well as in high-risk areas where cultural heritage is threatened.Originality/valueThis article compares many different low-cost scanning solutions for underground excavations, along with presenting a prototype that can be easily replicated for documentation purposes.

scholarly journals QueryArch3D: Querying and Visualising 3D Models of a Maya Archaeological Site in a Web-Based Interface

2011 ◽  
Vol 6 ◽  
pp. 10-17 ◽  
Author(s):  
Giorgio Agugiaro ◽  
Fabio Remondino ◽  
Gabrio Girardi ◽  
Jennifer Von Schwerin ◽  
Heather Richards-Rissetto ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Research Work ◽  
Data Access ◽  
Archaeological Site ◽  
3D Models ◽  
Heterogeneous Data ◽  
3D Navigation ◽  
External Data ◽  
Semantic Hierarchies ◽  
Integration Strategies

Constant improvements in the field of surveying, computing and distribution of digital-content are reshaping the way Cultural Heritage can be digitised and virtually accessed, even remotely via web. A traditional 2D approach for data access, exploration, retrieval and exploration may generally suffice, however more complex analyses concerning spatial and temporal features require 3D tools, which, in some cases, have not yet been implemented or are not yet generally commercially available. Efficient organisation and integration strategies applicable to the wide array of heterogeneous data in the field of Cultural Heritage represent a hot research topic nowadays. This article presents a visualisation and query tool (QueryArch3D) conceived to deal with multi-resolution 3D models. Geometric data are organised in successive levels of detail (LoD), provided with geometric and semantic hierarchies and enriched with attributes coming from external data sources. The visualisation and query front-end enables the 3D navigation of the models in a virtual environment, as well as the interaction with the objects by means of queries based on attributes or on geometries. The tool can be used as a standalone application, or served through the web. The characteristics of the research work, along with some implementation issues and the developed QueryArch3D tool will be discussed and presented.

scholarly journals Geoinformatics Technologies for Preservation of Cultural Heritage, Case Study, Rákóczi-Bánffy Castle, Urmeniș, Bistriţa Năsăud County, Romania

2021 ◽  
Vol 11 (1) ◽  
pp. 41-48
Author(s):  
V.M. Rădulescu ◽  
G.M.T. Rădulescu ◽  
Sanda Naș ◽  
A.T. Rădulescu ◽  
M. Bondrea ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Point Cloud ◽  
Laser Scanning ◽  
Methodological Approach ◽  
Laser Scanner ◽  
Aerial Photogrammetry ◽  
Current State ◽  
Knowing That ◽  
Aerial Vehicle ◽  
The One

Abstract The paper presents an application of the methodology used in the paper “Synthetic analysis of geoinformatics technologies for cultural heritage conservation, methodological approach”. The creation of the 3D model of the Rákóczi-Bánffy Castle in Urmeniș, Bistrița Năsăud County, was done by applying and integrating Terrestrial Laser Scanning (TLS) technologies and aerial photogrammetry performed with an Unmanned Aerial Vehicle (UAV). Agisoft Photoscan was used to compare the results and then they were compared with the images scanned using CloudCompare software. Thus, following the performance, with the help of the mentioned software, of a series of processing of the point cloud obtained, through the two imaging technologies, the error between the points belonging to the point cloud taken with UAV and the one taken with Laser Scanner was between 1 and 15 mm, the margin of error being acceptable for monuments without complex architectural details, so that the point cloud resulting from UAVs can be used successfully in this activity. The aim of the paper is to elaborate a geomatic methodology with an optimized cost-quality ratio, later replicable in the analysis of the current state of other constructions of the same type, knowing that over 600 castles in Transylvania alone are in a similar state, and such cases can be found in other Central European states as well.

scholarly journals 3D DOCUMENTATION OF CULTURAL HERITAGE: THE CASE STUDY OF BANTEAY SREI TEMPLE IN ANGKOR, SIEM REAP

2020 ◽  
Vol XLIII-B2-2020 ◽  
pp. 919-923
Author(s):  
L. Zhang ◽  
F. Wang ◽  
X. Cheng ◽  
C. Li ◽  
H. Lin ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Laser Scanning ◽  
3D Model ◽  
Digital Camera ◽  
3D Models ◽  
Laser Scanners ◽  
Aerial Vehicle ◽  
3D Documentation ◽  
Difficult Challenge

Abstract. 3D documentation and visualization of cultural heritage has a great significance in preserving the memories and history, and supports cultural tourism. It is of great importance to study the 3D reconstruction of cultural relics and historic sites. Preservation, visualization of valuable cultural heritage has always been a difficult challenge. With the developments of photogrammetry, terrestrial laser scanning, 3D models were able to obtained quickly and accurately. In this paper we present the survey and 3D modelling of an ancient temple, Banteay Srei, situated in Angkor, which has long been admired as a “Precious Gem” of Khmer Art for its miniature size of structures and exceptional refinement of the sculptures. The survey was performed with FARO Focus3D 330 and FARO Focus3D 120 terrestrial laser scanners, a micro unmanned aerial vehicle (UAV) (DJI Phantom 4 Pro) and a digital camera (Nikon D90). Once the acquired scans were properly merged, a 3D model was generated from the global point cloud, and plans, sections and elevations were extracted from it for restoration purposes. A short multimedia video was also created for the “Digital Banteay Srei”. In the paper we will discuss all the steps and challenges addressed to provide the 3D model of Banteay Srei Temple.

scholarly journals 3D MODELS FOR ALL: LOW-COST ACQUISITION THROUGH MOBILE DEVICES IN COMPARISON WITH IMAGE BASED TECHNIQUES. POTENTIALITIES AND WEAKNESSES IN CULTURAL HERITAGE DOMAIN

2017 ◽  
Vol XLII-2/W8 ◽  
pp. 221-228 ◽  
Author(s):  
C. Santagati ◽  
M. Lo Turco ◽  
M. M. Bocconcino ◽  
V. Donato ◽  
M. Galizia
Keyword(s):  
Cultural Heritage ◽  
Low Cost ◽  
Digital Camera ◽  
Archaeological Site ◽  
3D Models ◽  
Museum Collections ◽  
Entry Level ◽  
Human Creativity ◽  
3D Acquisition ◽  
Wide Access

Nowadays, 3D digital imaging proposes effective solutions for preserving the expression of human creativity across the centuries, as well as is a great tool to guarantee global dissemination of knowledge and wide access to these invaluable resources of the past. Nevertheless, in several cases, a massive digitalisation of cultural heritage items (from the archaeological site up to the monument and museum collections) could be unworkable due to the still high costs in terms of equipment and human resources: 3D acquisition technologies and the need of skilled team within cultural institutions. Therefore, it is necessary to explore new possibilities offered by growing technologies: the lower costs of these technologies as well as their attractive visual quality constitute a challenge for researchers. Besides these possibilities, it is also important to consider how information is spread through graphic representation of knowledge. The focus of this study is to explore the potentialities and weaknesses of a newly released low cost device in the cultural heritage domain, trying to understand its effective usability in museum collections. The aim of the research is to test their usability, critically analysing the final outcomes of this entry level technology in relation to the other better assessed low cost technologies for 3D scanning, such as Structure from Motion (SfM) techniques (also produced by the same device) combined with dataset generated by a professional digital camera. The final outcomes were compared in terms of quality definition, time processing and file size. The specimens of the collections of the Civic Museum Castello Ursino in Catania have been chosen as the site of experimentation.

scholarly journals Integration of geomatics methodologies and creation of a cultural heritage app using augmented reality

2019 ◽  
Vol 10 (20) ◽  
pp. 40 ◽  
Author(s):  
Vincenzo Barrile ◽  
Antonino Fotia ◽  
Giuliana Bilotta ◽  
Domenico De Carlo
Keyword(s):  
Augmented Reality ◽  
Cultural Heritage ◽  
Laser Scanner ◽  
Structural Complexity ◽  
3D Models ◽  
Buried Objects ◽  
Historical Structures ◽  
Virtual And Augmented Reality ◽  
High Level ◽  
The Church

<p>3D modelling of archaeological and historical structures is the new frontier in the field of conservation science. Similarly, the identification of buried finds, which enhances their multimedia diffusion and restoration, has gained relevance. As such sites often have a high level of structural complexity and complicated territorial geometries, accuracy in the creation of 3D models and the use of sophisticated algorithms for georadar data analysis are crucial. This research is the first step in a larger project aimed at reclaiming the ancient villages located in the Greek area of southern Italy. The present study focuses on the restoration of the village of Africo (RC), a village hit by past flooding. The survey began with a laser scan of the church of St. Nicholas, using both the Faro Focus3D and the Riegl LMS-Z420i laser scanner. At the same time, georadar analyses were carried out in order to pinpoint any buried objects. In the processing phase, our own MATLAB algorithms were used for both laser scanner and georadar datasets and the results compared with those obtained from the scanners’ respective proprietary software. We are working to develop a tourism app in both augmented and virtual reality environments, in order to disseminate and improve access to cultural heritage. The app allows users to see the 3D model and simultaneously access information on the site integrated from a variety of repositories. The aim is to create an immersive visit, in this case, to the church of St. Nicholas.</p><p><strong>Highlights:</strong></p><ul><li><p>Use of different algorithms for registration of terrestrial laser scans and analysis of the data obtained.</p></li><li><p>3D acquisition, processing and restitution methodology from georadar data.</p></li><li><p>Implementation of a tourist app in both virtual and augmented reality by integrating geomatics methodologies.</p></li></ul>

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