scholarly journals Α PATTERN-BASED AUGMENTED REALITY APPLICATION FOR THE DISSEMINATION OF CULTURAL HERITAGE

2021 ◽  
Vol VIII-M-1-2021 ◽  
pp. 57-63
Author(s):  
A.-M. Boutsi ◽  
S. Verykokou ◽  
S. Soile ◽  
C. Ioannidis
Keyword(s):  
Augmented Reality ◽  
Cultural Heritage ◽  
Feature Matching ◽  
3D Models ◽  
Added Value ◽  
Mobile Platforms ◽  
Mobile Ar ◽  
Matching Techniques ◽  
Graphics Engine ◽  
Java Code

Abstract. Augmented Reality (AR) is more than an added value for Cultural Heritage (CH); it is vital for its sustainability, promotion and dissemination, increasing accessibility in CH even during difficult periods of time, like the Covid-19 pandemic. In order to be meaningful and engaging, an AR application should have the following characteristics: easiness of use, high-quality representations and compatibility. This paper presents a marker-less mobile AR application for the display and inspection of high-resolution 3D cultural assets, overlayed on a particular location in the real-world scene. Instead of predefined markers, an image captured by the user is exploited as a pattern for real-time feature matching, pose estimation and scene augmentation. Our approach is based on pure computer vision and photogrammetric techniques, implemented using native C++ and Java code for Android mobile platforms. It is built with the use of the OpenCV library and the OpenGL ES graphics API without any dependencies of AR Software Development Kits (SDKs). Therefore, it supports cross-vendor portability regarding mobile model devices and hardware specifications. The evaluation of the developed application examines the performance of various matching techniques and the overall responsiveness of processing and 3D rendering on mid-range and low-end smartphones. The results showcase the reliability and responsiveness of the pattern recognition as well as the potential of the 3D graphics engine to render and overlay complex 3D models balancing between visual quality and time. The proposed methodology is applied to the Ciborium of the church of St. Charalabos, located at St. Stephen’s Monastery in Meteora, Greece.

scholarly journals Mobile AR: User Evaluation in a Cultural Heritage Context

2019 ◽  
Vol 9 (24) ◽  
pp. 5454
Author(s):  
Anabela Marto ◽  
Alexandrino Gonçalves
Keyword(s):  
Augmented Reality ◽  
Cultural Heritage ◽  
Archaeological Site ◽  
User Evaluation ◽  
Virtual Model ◽  
Mobile Augmented Reality ◽  
Heritage Sites ◽  
Augmented Reality Application ◽  
Mobile Ar

The growing number of mobile augmented reality applications has been favoring its awareness and usage among diversified areas. Focusing on cultural heritage applications, this study presents an evaluation of a mobile augmented reality application tested at Conimbriga, an archaeological site. The prototype developed for this purpose, named DinofelisAR, allowed users to view, over 360 degrees, a majestic reconstruction of a Forum from the Roman Era superimposed over its current ruins. Thus, users were able to keep perceiving the present-day surroundings of a Roman city in ruins while, at the same time, had the possibility to explore the matching virtual model. The results presented, arising from 90 participants involved in this evaluation, praise the sense of opportunity for new augmented reality solutions targeted at cultural heritage sites.

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 An Architecture for Mobile Outdoors Augmented Reality for Cultural Heritage

2018 ◽  
Vol 7 (12) ◽  
pp. 463 ◽  
Author(s):  
Chris Panou ◽  
Lemonia Ragia ◽  
Despoina Dimelli ◽  
Katerina Mania
Keyword(s):  
Augmented Reality ◽  
Cultural Heritage ◽  
Real World ◽  
3D Model ◽  
3D Models ◽  
Interest Points ◽  
Historical Information ◽  
The Real ◽  
Heritage Sites ◽  
Past State

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.

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 CONCEPTUAL MODEL OF MOBILE AUGMENTED REALITY FOR CULTURAL HERITAGE SITE TOWARDS ENJOYABLE INFORMAL LEARNING ASPECT

2015 ◽  
Vol 77 (29) ◽  
Author(s):  
Ulka Chandini Pendit ◽  
Syamsul Bahrin Zaibon ◽  
Juliana Aida Abu Bakar
Keyword(s):  
User Interface ◽  
Augmented Reality ◽  
Cultural Heritage ◽  
Informal Learning ◽  
Conceptual Model ◽  
Interface Design ◽  
User Interface Design ◽  
Mobile Augmented Reality ◽  
Heritage Site ◽  
Mobile Ar

Conceptual model of mobile augmented reality (AR) for cultural heritage site based on enjoyable informal learning aspect is proposed to help technical or content developers to develop mobile AR application specifically for cultural heritage site that include enjoyable learning aspect. The conceptual model provides appropriate content, navigation and user interface design, interactivity, features, hardware, and process for providing informal learning in enjoyable way at cultural heritage site using mobile AR. The conceptual model consists of three structures, six components, and twenty nine elements. The usage of conceptual model is flexible which can be implemented according to developer’s needs and preferences.

Mobile AR Performance Issues in a Cultural Heritage Environment

2018 ◽  
Vol 9 (1) ◽  
pp. 15-31
Author(s):  
Anabela Marto ◽  
A Augusto Sousa
Keyword(s):  
Augmented Reality ◽  
Cultural Heritage ◽  
Field Of View ◽  
Controlled Environment ◽  
Performance Tests ◽  
Augmented Reality System ◽  
Technological Advances ◽  
Mobile Ar ◽  
And Performance

Due to technological advances, augmented reality has seen fast growth in the last decades and numerous implementations of this technology have been in favour for a consequent growth of popularity. For this article, an augmented reality system is implemented for smartphone and tested in a cultural heritage environment to evaluate the system performance in the context. In the first stage, several prototypes were developed, and performance tests were executed in a controlled environment to select a solution to implement and evaluate in-situ. The solution found is a marker-based system, held with Vuforia SDK. When the marker is lost for being outside of the field of view, the system will be based on natural features to accomplish user tracking. Visitors from a cultural heritage space – the Roman Ruins of Conimbriga – tested the app and evaluated it. They considered that the presented system should be implemented in the referred cultural space, as well as in other archaeological spaces.

Sign in / Sign up

Export Citation Format

Share Document