Fotis Arnaoutoglou's research while affiliated with Athena-Research and Innovation Center in Information, Communication and Knowledge Technologies and other places

Publications (48)

Article
Haptic prohibition is one of the most common limitations when interacting with museum artefacts. This restriction aims quite logically at preventing damages while safeguarding the integrity of the cultural reserve, which is primarily characterised by its uniqueness. Nevertheless, in cases where museum visitors are visually impaired, the inability t...
Article
Disaster risk management of movable and immovable cultural heritage is a highly significant research topic. In this work, we present a pipeline for 3D digitisation, segmentation and annotation of large scale urban areas in order to produce data that can be exploited in disaster management simulators (e.g fire spreading, crowd movement, firefighting...
Chapter
Numerous software solutions implementing the structure-from-motion/multi-view stereo (SFM/MVS) 3D reconstruction approach have been made available over the last two decades. Hence, enabling the production of high quality, in terms of geometry and colour information, 3D objects using solely unordered image sequences depicting a static scene or objec...
Article
Full-text available
3D digitisation has been instrumental in the cultural heritage domain for over a decade, contributing to the digital preservation and dissemination of cultural heritage. Still, the typical 3D acquisition workflow remains complex and time-consuming. This work presents the concept of predictive digitisation by means of a platform, aiming to speed-up...
Chapter
In this unique collection the authors present a wide range of interdisciplinary methods to study, document, and conserve material cultural heritage. The methods used serve as exemplars of best practice with a wide variety of cultural heritage objects having been recorded, examined, and visualised. The objects range in date, scale, materials, and st...
Article
Full-text available
Numerous software solutions that implement the Structure-from-Motion/Multi-View Stereo (SfM/MVS) 3D reconstruction approach have been made available during the last decade. These allow the production of high quality in terms of geometry and colour information 3D models with the use of unordered image collections that depict a static scene or object...
Article
Full-text available
p class="VARAbstract">A key issue in the study of cultural assets is theiroften fragmentary condition. This causes serious problems and questions regarding theirstudy and presentation. Pottery fragments are the most numerous findings in every excavation. Furthermore, pottery plays an essential role for the reconstruction of the past, since it provi...
Conference Paper
The aim of this research is to achieve spatial consistency of the UV map. We present an approach to produce a fully spatially consistent UV mapping based on the planar parameterisation of the mesh. We apply our method on a 3D digital replica of an ancient Greek Lekythos vessel. We parameterise the mesh of a 3D model onto a unit square 2D plane usin...
Conference Paper
Full-text available
Despite numerous recent efforts, 3D object retrieval based on partial shape queries remains a challenging problem, far from being solved. The problem can be defined as: given a partial view of a shape as query, retrieve all partially similar 3D models from a repository. The objective of this track is to evaluate the performance of partial 3D object...
Conference Paper
Full-text available
Abstract—Continuous developments in the web and computer technologies along with an increasing availability of game engines contribute to an expansion of techniques that bridge culture and education with gaming. In addition, open linked data technologies pave the way towards the semantic web of the future by exploiting the abundance in data availab...
Conference Paper
Full-text available
Abstract Technological innovations have rapidly increased over the recent years as well as e-learning usage and thus museums have increased e-learning investment in order to adapt their services in a better and more efficient way for their visitors. While museums offer a diverse range of personal digital collections systems on their websites it...
Conference Paper
Full-text available
Abstract The continuous development of web services and computer infrastructures complemented by the increasing availability of game development software engines, contribute to an on-going expansion in the release of serious games (SG) in diverse areas, ranging from entertainment, cultural heritage (CH), education, artificial intelligence (AI),...
Conference Paper
The generation of 3D models with the Structure-from-Motion and Multiple View Stereovision (SFM-MVS) techniques is considered popular within the cultural heritage domain. The cost effectiveness in terms of hardware equipment and relatively low background knowledge requirements are two major SFM-MVS properties while the quality of the data produced c...
Conference Paper
Web-based dissemination of cultural heritage 3D content has been vividly increased over the last decade. EU-funded research and development projects established affordable pipelines in order to allow efficient 3D documentation and dissemination. Such an example is the 3D-ICONS project that was focused on the 3D digitisation of outstanding cultural...
Conference Paper
Web portals are entry points for information presentation and exchange over the Internet used by a community of interest. A part of the European cultural heritage thesaurus has already being offered as digital collections using various formats and thus there is a requirement for management, preservation and archiving of such digital assets as well...
Article
One of the factors that determine the data quality produced by targetless photogrammetric techniques is the feature richness of the surface being captured. The Structure-From-Motion and Multiple View Stereovision (SFM-MVS) pipeline is no exception to this rule as it relies on the ability to identify corresponding points within a collection of unord...
Article
A number of software solutions based on the Structure-From-Motion (SFM) and Dense Multi-View 3D Reconstruction (DMVR) algorithms have been made recently available. They allow the production of high quality 3D models by using unordered image collections that depict a scene or an object from different viewpoints. In this work, we question the quality...
Article
Full-text available
The idea of enriching a cultural heritage visitor’s experience by employing mobile devices such as smartphones and tablets is an active research domain. This is mainly due to the worldwide user penetration of such devices along with their continuous hardware performance enhancement. This work presents the experience and feedback gained by one year...
Article
Nowadays, multi-image 3D reconstruction is an active research field and a number of commercial and free software tools have been already made available to the public. These provide methods for the 3D reconstruction of real world objects by matching feature points and retrieving depth information from a set of unordered digital images. This is achie...
Article
It is fascinating to look at any digitization project from the scientific, technical and implementation points of view. However, it is necessary to consider the financial perspective as well. In this work we attempt to evaluate two common practices (photogrammetry and laser scanning) for the creation of 3D reconstructions of Cultural Heritage monum...
Article
The development of content based retrieval mechanisms is a very active research area. Present studies are mainly focused on automating the information extraction and indexing processes. Usually for the development and evaluation of such mechanisms, there is always a need for a ground-truth database. In this paper, we present a software tool named q...
Article
Virtual reconstruction of urban areas, which are lost due to natural or man-provoked disasters, is nowadays feasible through the usage of contemporary three-dimensional technologies and virtual reality. With the aid of topography, architecture, history and archaeology, the once existed urban areas, or even whole cities, can be reconstructed as clos...
Article
Full-text available
Nowadays commercial 3D range scanning systems have been used for the accurate digitisation of cultural heritage sites by following either terrestrial or aerial scanning approaches. Both approaches require high cost special equipment and software to cope with the vast amount of raw data. These raw data can be characterised as superfluous in cases wh...
Article
Full-text available
The benchmarking of 3D content base retrieval mechanisms is usually performed on test bed datasets composed by 3D models. These usually cover several categories of objects such as ships, airplanes, animals, furniture, etc. In this paper, we attempted the generation of a ground truth database of 3D models that exhibit morphological characteristics s...
Article
Complete digital recording of Cultural Heritage is a multidimensional process. It depends highly on the nature of the subject of recording as well as the purpose of its recording. The whole process involves the three-dimensional digitization, digital data processing and storage, archival and management, representation and reproduction. In this pape...
Article
The old city of Xanthi (Thrace-Greece) is one of the biggest traditional settlements in Greece which has the specialty to exhibit mixed traditional Greek, European and Oriental architectural features. This paper presents a 3D reconstruction of a small part of the settlement. It deals with the idea of using open source systems in 3D graphics in orde...
Article
Full-text available
D digitization of monuments is a very specific problem in the digitization domain. Since the size of the digitization subject is one of the most important factors in choosing an appropriate and adequate digitization technology and methodology, this problem cannot be addressed using just one simple digitization technique. Various tech- niques have b...
Article
Recent developments in 2D and 3D digitization and visualization technologies, as well as in measurement instrumentation, combined with the emerging multimedia databases and network technologies offer today new possibilities for the integrated and complete description of cultural objects. Our Institute, with main interest in the preservation of Cult...
Article
Full-text available
The scope of this paper is to propose an innovative interactive system for D visualization of multimedia databases. In such databases, the digital content is accompanied by complementary information and metadata that describe the content. The pro- posed D visualization environment is able to provide multi- scale representations driven by appropriat...
Article
The creation of the photorealistic models of two Byzantine churches was elaborated during a cooperation of the 5th Byzantine Ephorate of Greece, the Cultural and Educational Technologies Institute and the Department of Architectural Engineering of the Democritus University of Thrace under the funding of the European Union Framework Programme.
Article
Subject of this paper is to propose an innovative interactive system for 3D visualization of digital music archives. In such archives, digital music is accompanied by complementary information and metadata that describe its content. The proposed 3D visualization environment is able to provide multi-scale representations driven by ap-propriate clust...
Article
Full-text available
Complete recording of Cultural Heritage is a multi-disciplinary and multi-dimensional process. It does not only address the problem of three-dimensional (3D) dig-itization of objects and monuments but involves all the aspects of this new digital con-tent management, representation and reproduction. It addresses issues affecting the whole life cycle...
Article
Full-text available
Digitization is one of the most important issues in cultural heritage preserva- tion. Several digitization projects, active today, will result in a massive amount of digital data representing the cultural heritage. This wealth of cultural information in digital form will be rendered useless in a digital universe without access. In this framework, v...

Citations

... Moreover, a secondary finding is that tactile-based approaches tend to gain (after 2015) the upper hand in comparison to respective audio-only onesa development that relates to advancements in 3D scanning/ printing, as well as tactile simulators. Pistofidis et al. (2021) draw attention to the very useful conceptualisation of the Smart Exhibit (SE) a term coined by Yoo (2014). They connect it with the specific quest of enhancing VI museum visitors' experience. ...
... Through these technological helping tools the archaeological survey can get enriched and extended. An example that demonstrates this was created through a profound 3D digitization project, 3DICONS (Tsaouselis et al., 2015), conducted for providing 3D content for Europeana, the online collection of cultural heritage resources in Europe. In one of the resulted models of monuments of world heritage significance, the St. Apostles church in Thessaloniki, Greece (see Figure 7), through the manipulation of a detailed 3D model of the church an unpublished inscription was located reused as a drain pipe (Koutsoudis et al., 2014). ...
... et som påverkade utrymningens effektivitet var tiden innan människor började röra sig ut ur byggnaden, hur snabbt larmet aktiverades (beroende på antalet rökdetektorer) samt hur lång gångsträckan för utrymning var. Författarna föreslår ett automatiskt kontrollsystem i museets entré för att undvika att för många besökare finns i byggnaden samtidigt.Koutsoudis et al. (2021) visar att multispektralfotografering med hjälp av drönare kan användas för katastrof-och utrymningsplanering i stadsdelar och kvarter med kulturhistoriska värden. Fotografierna läggs ihop till digitala 3D-replikor som sedan kan användas för simulering av olika katastrofscenarier samt maskininlärning. ...
... In the fourth case study, a photogrammetric survey using digital single lens reflex camera and a structure from motion-multi-view stereo (SfM-MVS) approach was performed [23]. In particular, a Nikon D3300 with a Nikkor 20 mm f/2.8D fixed focal lens was used for the 3D survey [24]. ...
... This work continues on our previous research that was focused on movable objects material-based segmentation using ultraviolet to near infrared imagery [15] . We propose a minimum and of low cost infrastructural requirements pipeline that exploits the use of multilayer texture information where visible spectrum and near infrared bands are related to the spatial coordinates of a vertice composing a 30 dimensional vector, that also incorporates the coefficients of the corresponding facet's normal 3D vector. ...
... Several studies have focused on this problem. Research has already focused on the issues of featureless and specular surfaces, the image pre-processing for SfM-MVS optimisation and the selection of the proper acquisition setup [40]- [49]. ...
... This protocol aims to take advantage of collections of objects with a similar structure to that in cultural heritage artifacts. Previous restoration methods assume that humanmade objects exhibit some structure and regularity (Sipiran, 2017;Pratikakis et al., 2018). If an algorithm can detect symmetries in the object, we can apply the symmetric transformation to synthesize what is missing. ...
... Virtual restorations are restorations that remain virtual and they can be considered a study of a previous state of the object, based on existing documentation. Methods for various kinds of virtual restorations can be distinguished, such as virtual restorations of lost polychromy [51][52][53], virtual anastylosis [54,55] and virtual reconstructions [56][57][58][59]. ...
... In the SHREC'16 Partial 3D Object Retrieval track [39], a number of additional view-based methods were introduced. Aono et al. presented three variant methods which each encoded KAZE features [2] extracted from different object views with Vector of Locally Aggregated Descriptors (VLAD) [26], Gaussian of Local Distribution (GOLD) [47], and Fisher Vectors (FV) [37]. ...
... To the best of our knowledge, although common mathematical tools based on Procrustes registration, thin plate splines, and simple optimization are involved, such implementations were not available in popular game engines, or in packages and libraries of the main programming languages. The final equirectangular images can be used as supplementary layers over the original photospheres, and incorporated into virtual archaeological tours [45,46], or rendered individually by dedicated web viewers, or stand-alone VR browsers for Windows, Mac, and Linux, and for tablets and smartphones based on Android or iOS The augmentation of the photosphere is undoubtedly effective for better understanding of the monument, especially for apprehending the spatial organization of symbols at the surface of the stela ( Figure 6A,B; see also in Supplementary Material, Figures S5 and S6 for the original and augmented jpeg images). Note that several photospheres could have been captured to cover the other sides of the stela, allowing visitors to change their point of view, while maintaining their perception of environmental scale and space. ...