scholarly journals A Photogrammetry-Based Workflow for the Accurate 3D Construction and Visualization of Museums Assets

2021 ◽  
Vol 13 (3) ◽  
pp. 486
Author(s):  
Fabrizio Ivan Apollonio ◽  
Filippo Fantini ◽  
Simone Garagnani ◽  
Marco Gaiani
Keyword(s):  
Cultural Heritage ◽  
Real Time ◽  
Case Studies ◽  
Process Evaluation ◽  
Low Cost ◽  
3D Models ◽  
Complex Task ◽  
Geometry Processing ◽  
Novel Approach ◽  
Processing Techniques

Nowadays digital replicas of artefacts belonging to the Cultural Heritage (CH) are one of the most promising innovations for museums exhibitions, since they foster new forms of interaction with collections, at different scales. However, practical digitization is still a complex task dedicated to specialized operators. Due to these premises, this paper introduces a novel approach to support non-experts working in museums with robust, easy-to-use workflows based on low-cost widespread devices, aimed at the study, classification, preservation, communication and restoration of CH artefacts. The proposed methodology introduces an automated combination of acquisition, based on mobile equipment and visualization, based on Real-Time Rendering. After the description of devices used along the workflow, the paper focuses on image pre-processing and geometry processing techniques adopted to generate accurate 3D models from photographs. Assessment criteria for the developed process evaluation are illustrated. Tests of the methodology on some effective museum case studies are presented and discussed.

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 Comparative Analysis of Digital Models of Objects of Cultural Heritage Obtained by the “3D SLS” and “SfM” Methods

2021 ◽  
Vol 11 (12) ◽  
pp. 5321
Author(s):  
Marcin Barszcz ◽  
Jerzy Montusiewicz ◽  
Magdalena Paśnikowska-Łukaszuk ◽  
Anna Sałamacha
Keyword(s):  
Cultural Heritage ◽  
Low Cost ◽  
Three Dimensional ◽  
3D Models ◽  
Silk Road ◽  
Digital Models ◽  
Global Pandemic ◽  
University Of Technology ◽  
Three Dimensional Models ◽  
3D Digitisation

In the era of the global pandemic caused by the COVID-19 virus, 3D digitisation of selected museum artefacts is becoming more and more frequent practice, but the vast majority is performed by specialised teams. The paper presents the results of comparative studies of 3D digital models of the same museum artefacts from the Silk Road area generated by two completely different technologies: Structure from Motion (SfM)—a method belonging to the so-called low-cost technologies—and by Structured-light 3D Scanning (3D SLS). Moreover, procedural differences in data acquisition and their processing to generate three-dimensional models are presented. Models built using a point cloud were created from data collected in the Afrasiyab museum in Samarkand (Uzbekistan) during “The 1st Scientific Expedition of the Lublin University of Technology to Central Asia” in 2017. Photos for creating 3D models in SfM technology were taken during a virtual expedition carried out under the “3D Digital Silk Road” program in 2021. The obtained results show that the quality of the 3D models generated with SfM differs from the models from the technology (3D SLS), but they may be placed in the galleries of the vitrual museum. The obtained models from SfM do not have information about their size, which means that they are not fully suitable for archiving purposes of cultural heritage, unlike the models from SLS.

TRACKING HUMAN MOTION FROM MONOCULAR SEQUENCES

2008 ◽  
Vol 08 (03) ◽  
pp. 455-471 ◽  
Author(s):  
LAURO SNIDARO ◽  
GIAN LUCA FORESTI ◽  
LUCA CHITTARO
Keyword(s):  
Real Time ◽  
Low Cost ◽  
Digital Camera ◽  
Human Motion ◽  
Movie Industry ◽  
Sources Of Information ◽  
Robust Detection ◽  
Detection And Tracking ◽  
Novel Approach ◽  
Body Joints

In recent years, analysis of human motion has become an increasingly relevant research topic with applications as diverse as animation, virtual reality, security, and advanced human-machine interfaces. In particular, motion capture systems are well known nowadays since they are used in the movie industry. These systems require expensive multi-camera setups or markers to be worn by the user. This paper describes an attempt to provide a markerless low cost and real-time solution for home users. We propose a novel approach for robust detection and tracking of the user's body joints that exploits different algorithms as different sources of information and fuses their estimates with particle filters. This system may be employed for real-time animation of VRML or X3D avatars using an off-the-shelf digital camera and a standard PC.

scholarly journals LOW COST EMBEDDED STEREO SYSTEM FOR UNDERWATER SURVEYS

2017 ◽  
Vol XLII-2/W8 ◽  
pp. 179-186
Author(s):  
M. M. Nawaf ◽  
J.-M. Boï ◽  
D. Merad ◽  
J.-P. Royer ◽  
P. Drap
Keyword(s):  
Embedded System ◽  
Real Time ◽  
Low Cost ◽  
Visual Odometry ◽  
Movement Speed ◽  
Underwater Imaging ◽  
Lighting Conditions ◽  
Computational Resources ◽  
Processing Techniques

This paper provides details of both hardware and software conception and realization of a hand-held stereo embedded system for underwater imaging. The designed system can run most image processing techniques smoothly in real-time. The developed functions provide direct visual feedback on the quality of the taken images which helps taking appropriate actions accordingly in terms of movement speed and lighting conditions. The proposed functionalities can be easily customized or upgraded whereas new functions can be easily added thanks to the available supported libraries. Furthermore, by connecting the designed system to a more powerful computer, a real-time visual odometry can run on the captured images to have live navigation and site coverage map. We use a visual odometry method adapted to low computational resources systems and long autonomy. The system is tested in a real context and showed its robustness and promising further perspectives.

scholarly journals A REVIEW OF AUGMENTED REALITY FOR ARCHITECTURE AND CULTURAL HERITAGE VISUALIZATION

2018 ◽  
pp. 65-72
Author(s):  
Isidora Đurić ◽  
Ratko Obradović ◽  
Nebojša Ralević
Keyword(s):  
Augmented Reality ◽  
3D Reconstruction ◽  
Cultural Heritage ◽  
Case Studies ◽  
3D Models ◽  
Real Environment ◽  
Different Types ◽  
The Subject ◽  
Object Features ◽  
Heritage Visualization

This paper presents an overview of the use of Augmented Reality in the area of architecture and cultural heritage visualization. The subject of this research are objects that have significant cultural and historical values which, for different reasons, cannot be perceived in their real environment. Using two case-studies, the processes of 3D reconstruction, optimization and AR presentation of the reality models are described in detail. The 3D models are created by using photogrammetry and the AR visualization is performed by using an existing platform for the AR presentation. The aim of the paper is to emphasize the importance of incorporating photogrammetry and augmented reality for the visualization of different types of object features.

scholarly journals 3D SURVEY AND AUGMENTED REALITY FOR CULTURAL HERITAGE. THE CASE STUDY OF AURELIAN WALL AT CASTRA PRAETORIA IN ROME

2016 ◽  
Vol XLI-B5 ◽  
pp. 931-937 ◽  
Author(s):  
M. Canciani ◽  
E. Conigliaro ◽  
M. Del Grasso ◽  
P. Papalini ◽  
M. Saccone
Keyword(s):  
Augmented Reality ◽  
Cultural Heritage ◽  
Coming Out ◽  
3D Model ◽  
Low Cost ◽  
Conservation Status ◽  
3D Models ◽  
Curtain Wall ◽  
Virtual Reconstruction

The development of close-range photogrammetry has produced a lot of new possibility to study cultural heritage. 3D data acquired with conventional and low cost cameras can be used to document, investigate the full appearance, materials and conservation status, to help the restoration process and identify intervention priorities. At the same time, with 3D survey a lot of three-dimensional data are collected and analyzed by researchers, but there are a very few possibility of 3D output. The augmented reality is one of this possible output with a very low cost technology but a very interesting result. Using simple mobile technology (for iPad and Android Tablets) and shareware software (in the case presented “Augment”) it is possible to share and visualize a large number of 3D models with your own device. The case study presented is a part of an architecture graduate thesis, made in Rome at Department of Architecture of Roma Tre University. We have developed a photogrammetric survey to study the Aurelian Wall at Castra Praetoria in Rome. The surveys of 8000 square meters of surface have allowed to identify stratigraphy and construction phases of a complex portion of Aurelian Wall, specially about the Northern door of Castra. During this study, the data coming out of 3D survey (photogrammetric and topographic), are stored and used to create a reverse 3D model, or virtual reconstruction, of the Northern door of Castra. This virtual reconstruction shows the door in the Tiberian period, nowadays it's totally hidden by a curtain wall but, little and significative architectural details allow to know its original feature. The 3D model of the ancient walls has been mapped with the exact type of bricks and mortar, oriented and scaled according to the existing one to use augmented reality. Finally, two kind of application have been developed, one on site, were you can see superimposed the virtual reconstruction on the existing walls using the image recognition. On the other hand, to show the results also during the graduation day, the same application has been created in off-site condition using a poster.

scholarly journals Smart Architectural and Urban Heritage: An Applied Reflection

Heritage ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 2044-2053
Author(s):  
Stefano Brusaporci ◽  
Pamela Maiezza
Keyword(s):  
Augmented Reality ◽  
Multimedia Information ◽  
Real Time ◽  
Case Studies ◽  
Digital Technologies ◽  
3D Models ◽  
Current Configuration ◽  
Urban Heritage ◽  
Mobile Ar

The aim of this paper is to present the use of 3D models and augmented reality (AR) to study and communicate architectural and urban values and, therefore, favor the development of dedicated forms of “smart heritage”. The study rises from a reflection on the concept of “heritage”, as defined in the international documents, intended as an evolving idea that puts together tangible and intangible aspects. Moreover, digital technologies favor “phygital” applications where the digital dimension support the traditional ones. In this way, AR allows the superimposition of multimedia information to heritage, respecting the historical matter of the artefacts, and supporting a “smart heritage” application. In particular, mobile AR, with real-time and ubiquitous visualizations, offers the opportunity to show past urban and architectural configurations to investigate and describe the transformations that have led to the current configuration, and consequently highlighting the present historical and architectural values of the buildings. Two case studies are presented: the square of St. Basilio Monastery, with its historical transformations, and the Basilica of Collemaggio, a pivotal building in the rites of “Perdonanza Celestiniana”.

scholarly journals 3D LOW-COST ACQUISITION FOR THE KNOWLEDGE OF CULTURAL HERITAGE: THE CASE STUDY OF THE BUST OF SAN NICOLA DA TOLENTINO

2019 ◽  
Vol XLII-2/W17 ◽  
pp. 93-100
Author(s):  
A. Cardaci ◽  
A. Versaci ◽  
P. Azzola
Keyword(s):  
3D Reconstruction ◽  
Cultural Heritage ◽  
Low Cost ◽  
Three Dimensional ◽  
3D Models ◽  
Photographic Images ◽  
Reconstruction Software ◽  
Cultural Sphere ◽  
Three Dimensional Models

Abstract. The creation of three-dimensional models for the cataloguing and documentation of cultural heritage is today an emerging need in the cultural sphere and, above all, for museums. The cultural heritage is still catalogued and documented based on descriptive files assorted of photographic images which, however, fail to outline its spatial richness, possible only through the use of 3D artefacts. The essay aims to propose a methodology of digitalization by low-cost and easy-to-use systems, to be employed even by non-expert survey and photogrammetry’s operators. The case study of the statue of San Nicola da Tolentino, preserved at the Sant’Agostino complex in Bergamo, offered the possibility of a comparison between 3D models acquired with different digitalization tools (professional/action/amateur cameras and smartphone) and processed by several image-based 3D Reconstruction software and methods.

scholarly journals ROBOTICS AND VIRTUAL REALITY FOR CULTURAL HERITAGE DIGITIZATION AND FRUITION

2017 ◽  
Vol XLII-5/W1 ◽  
pp. 503-508 ◽  
Author(s):  
D. Calisi ◽  
F. Cottefoglie ◽  
L. D'Agostini ◽  
F. Giannone ◽  
F. Nenci ◽  
...  
Keyword(s):  
Information System ◽  
Virtual Reality ◽  
Cultural Heritage ◽  
3D Models ◽  
Robotic System ◽  
Archaeological Sites ◽  
Novel Approach ◽  
Computer Scientists ◽  
Visualization Techniques ◽  
The Web

In this paper we present our novel approach for acquiring and managing digital models of archaeological sites, and the visualization techniques used to showcase them. In particular, we will demonstrate two technologies: our robotic system for digitization of archaeological sites (DigiRo) result of over three years of efforts by a group of cultural heritage experts, computer scientists and roboticists, and our cloud-based archaeological information system (ARIS). Finally we describe the viewers we developed to inspect and navigate the 3D models: a viewer for the web (ROVINA Web Viewer) and an immersive viewer for Virtual Reality (ROVINA VR Viewer).

scholarly journals RAPID PROTOTYPING FOR THE EXTENSION OF THE ACCESSIBILITY TO CULTURAL HERITAGE FOR BLIND PEOPLE

2019 ◽  
Vol XLII-2/W15 ◽  
pp. 1077-1082 ◽  
Author(s):  
A. Scianna ◽  
F. Di Filippo
Keyword(s):  
Rapid Prototyping ◽  
Cultural Heritage ◽  
Visually Impaired ◽  
Low Cost ◽  
3D Models ◽  
Disabled People ◽  
Blind And Visually Impaired ◽  
Visually Impaired People ◽  
Impaired People ◽  
Problems And Solutions

<p><strong>Abstract.</strong> The extension of accessibility of CH to disabled people is a current topic of great importance. Today, there exist a lot of ongoing projects aimed at the extension of accessibility using the most recent and low cost technologies to improve accessibility to CH. One of the technologies, today available that can help to improve accessibility to CH, is certainly rapid prototyping. The main goal of the research here illustrated is the application of rapid prototyping for the extension of accessibility of Cultural Heritage (CH) to blind and visually impaired people. This document reports an experiment that compared the effectiveness of different 3D models for the introduction of blind and visually impaired people to the tactile use of models of monuments. In addition, this study focuses on defining standards and guidelines regarding features of 3D models, e.g. print resolution, in order to obtain greater legibility of models at different scales by the blind or visually impaired people. This paper shows a part of a wider Interreg EU research project, named I-ACCESS, aimed to study accessibility problems and solutions for CH. The experiments conducted with the sample of disabled people, allowed to obtain results on the most suitable printing parameters to be used.</p>

Sign in / Sign up

Export Citation Format

Share Document