DH2015 - Track 2

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https://diglib.eg.org/handle/10.2312/14459

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Digital Study and Web-based Documentation of the Colour and Gilding on Ancient Marble Artworks
(IEEE, 2015) Siotto, Eliana; Palma, Gianpaolo; Potenziani, Marco; Scopigno, Roberto; Gabriele Guidi and Roberto Scopigno and Pere Brunet
Greek and Roman marble artworks have been deeply studied from a typological and stylistic point of view, while there is still a limited knowledge on the pigments, dyes, binders and technical expedients used by Roman artists. In a renewed scientific interest towards the ancient polychromy (colour and gilding), a digital methodological and multidisciplinary approach can provide valuable information to better investigate and understand this fundamental aspect and to get a complete sense on Greek and Roman marble artworks. Following this research direction, the paper proposes a systematic methodological process defined to detect, document and visualize the preserved (and in some cases the digital reconstructed) original colour and gilding on Roman marble sarcophagi (II-IV century AD). The process defines a working pipeline that, starting from the selection of the artefact to study, proposes a set of investigation steps to improve our knowledge of its original painting. These steps include the direct virtual inspection, the archaeological and historical research, the on-site scientific investigation by multispectral imaging, spectroscopic and elemental analysis (eventually supported by micro-invasive techniques performed in laboratory), the accurate polychrome surface acquisition by colour calibrated 2D images. All the data produced are integrated with a high-resolution 3D model to support enhanced analysis and comparison and to create a digital 3D polychrome reconstruction by virtual painting. Finally, all those data are also made accessible on the web by using a cutting edge platform for visual media publication and interactive 3D visualization. This systematic and multidisciplinary process was tested on the so-called 'Annona sarcophagus’' (Museo Nazionale Romano - Palazzo Massimo, inv. no. 40799).
Smart Devices for Intangible Cultural Heritage Fruition
(IEEE, 2015) Pozzebon, Alessandro; Calamai, Silvia; Gabriele Guidi and Roberto Scopigno and Pere Brunet
This paper proposes a novel approach to the fruition of Intangible Cultural Heritage exploiting the technical features of smart devices. In particular, it presents a framework for a ''sound tourism'', in which the perception of sites is directly transmitted by the voice of the local communities through the creation of an app model for the fruition of landscape, places, and locations by means of oral archives. That is, the app model aims at boosting the added value of Intangible Cultural Heritage (e.g. popular music, oral history, languages and accents, local tradition, and folklore) by re-using it in real application environments (e.g. for tourist purposes). The proposed solution rejects the use of a smartphone as a mere displayer of information embracing an innovative philosophy that considers the smart device as a tool for the playback of audio material stored in sound archives, leaving the user free to enjoy the site he/she is visiting without the need to interact with a screen.
A MetaViewer for Sharing Multiple Media by WebGL-based Interfaces
(IEEE, 2015) Bergerot, Laurent; Gabriele Guidi and Roberto Scopigno and Pere Brunet
In recent years, sharing images and videos on the Web has become common. Recently, the use of 3D models is also growing day by day, and the evolution of programming languages and libraries allow visualizing detailed 3D models and point clouds on the web. This opens new scenarios and possibilities for combining libraries, formats and contents (images, videos or 3D) within rich web layouts which can be visualized by multiple devices (PC, tablet, smartphone, ...). This current technological context represents a great opportunity for people involved the digital documentation of cultural heritage artifact, especially regarding the management of heterogeneous contents within digital libraries. In this paper we present the first results of an on-going development project aiming to develop a MetaViewer for sharing multiple media (images, videos and 3D) by the means of WebGL-based interfaces.
Sarcophagus of the Spouses Installation - Intersection Across Archaeology, 3D Video Mapping and Holographic Techniques Combined with Immersive Narrative Environments and Scenography
(IEEE, 2015) Fischnaller, Franz; Guidazzoli, Antonella; Imboden, Silvano; Luca, Daniele De; Liguori, Maria Chiara; Russo, Alfonsina; Lucia, Maria Anna De; Cosentino, Rita; Gabriele Guidi and Roberto Scopigno and Pere Brunet
This paper presents the Sarcophagus of the Spouses installation, an audiovisual performance and exhibit combining 3D video mapping, holographic techniques, computer graphics, high definition visualization with 3D reconstruction and digital storytelling embedded in an immersive narrative environment and scenography. The installation is based on the Sarcophagus of the Spouses (Italian: Sarcofago degli Sposi), a terracotta Etruscan masterpiece of 1.14 m high by 1.9 m wide created around 520 BC depicting a married couple in their last hug, now located in the National Etruscan Museum of Villa Giulia, Rome.
Illumination Compensation for High-resolution Multispectral Image Mosaicing of Herritage Paintings
(IEEE, 2015) Duliu, Alexandru; Jakob, Vogel; Serafima, Sister; Lasser, Tobias; Navab, Nassir; Gabriele Guidi and Roberto Scopigno and Pere Brunet
When investigating artworks, having the ability to examine the reflectance spectra at every image pixel can us give insight into the materials and pigments used in its creation. Multispectral imaging is a great tool to perform this task, however, when acquiring images with a multispectral camera, in addition to the reflectance spectra, the surface interaction with the illumination is also captured. This hampers quantitative measurements of the surface. We introduce a novel multispectral imaging system and illumination compensation approach, that mitigates the influence of illumination on image formation. We showcase the performance of our system by producing highresolution multispectral mosaic images (low or high dynamic range) of artworks dated from the beginning of the XIX-th century, to the present day.
A Realistic Gamification Attempt for the Ancient Agora of Athens
(IEEE, 2015) Kontogianni, Georgia; Georgopoulos, Andreas; Gabriele Guidi and Roberto Scopigno and Pere Brunet
Digital technologies have affected significantly many fields of computer graphics such as Serious Games. These games are used for educational proposes in many scientific areas one of which is Digital Cultural Heritage. 3D textured models may be a useful tool for developing Serious Games in this field. In this paper a first attempt of creating a Serious Game for the Ancient Agora of Athens is presented. The scope of this game is to help people who are not experts such as school pupils, college students, tourists, museum visitors etc. to gain simple knowledge about the Agora and its monuments. Unity 3D software was used for the game development in which different kinds of realistic photogrammetric data were used. The scenario of the game includes virtual tours of the area in different eras and a simple quiz game. In this quiz game there are questions with three possible answers of which the user is expected to select the right one. In case of a correct answer the game continues to the next question. If the answer is wrong the user is presented with the correct answer and an explanation for his error. The game scenario will include more options in order to make the game more attractive for the player.
The Palmieri Hypogeum in Lecce - From the Integrated Survey to the Dissemination of Contents
(IEEE, 2015) Gabellone, Francesco; Ferrari, Ivan; Giuri, Francesco; Gabriele Guidi and Roberto Scopigno and Pere Brunet
This paper describes a complete path of research, which, starting from analysis and restitution 3D, gets to the virtual exploration of Hypogeum Palmieri in Lecce, a monument of Messapian age (4th century BC) currently not visible by tourists, as it is located in the garden of a private home. This project is developed under the DICET, an Italian National Operative Program, that aims to define and produce innovative models, processes, and tools for the sustainable development of a smart territory by capitalizing on its cultural and environmental resources, and marketing their touristic offerings. The instrumental survey of the Palmieri hypogeum was executed using two different methods, laser scanner and digital photogrammetry, in order to get a high metric control of the monument and high-resolution textures for the sculpted friezes. The two different survey methods allowed a perfect porting on different outputs: the 3D real time visit on the web and virtual visit on portable devices. A stereoscopic animation, installed at the museum MUST (Historic Museum of Lecce) Lecce, provides an easy diffusion of the cultural message. The richness of the textures and the resolution of the models has allowed the study of the monument from a morphological and structural point of view. The virtual reconstruction contributes to read an unpublished part of monumental tombs in Messapian age. Thanks to a cinematic approach with a great scientific rigor, the historical competence of an ordinary visitor is now largely formed on information coming from these media, thus creating a great increase in the demand for products with a high technological content and popularising historical re-evocations and reconstructions of the past.
StoryTECH 4 EVER - Storytelling TECHnologies for European Values and hERitage
(IEEE, 2015) Monaci, Sara; Morreale, Domenico; Cuniberti, Gianluca; Equizzi, Mariano; Sanna, Andrea; Gabriele Guidi and Roberto Scopigno and Pere Brunet
The aim of the project is to design and develop a system, a framework and a ''cultural heritage storytelling model'' to ease the exploitation of transmedia storytelling in the promotion of cultural heritage, through the reuse of European digital cultural assets. It will provide institutions and enterprises with a powerful environment to design and develop transmedia contents and to improve the promotion of their activities. A transmedia model will be applied in order to engage citizens and tourists in narrative experiences, online and in physical spaces (test sites will be equipped in Greece, Italy, Bulgaria), improving their knowledge of values deeply connected with European identity, such as work, social equality, natural resources exploitation. This objective is accomplished through the design of a fictional open and expandable narrative universe created through research and historical documentation. Alternate reality Games, Augmented Reality, Game App, Immersive cinematic and Virtual reality will be among the technologies applied in StoryTECH. A Semantic Reasoner will be designed and developed to improve the reuse of digital archives by a wider audience and to provide authoring support to transmedia storytelling of cultural heritage. StoryTECH will develop also an Animation Framework in order to ease the production of multimedia contents by small institutions and SME.
User Experiences in Three Approaches to a Visit to a 3D Labyrinthe of Versailles
(IEEE, 2015) Giloth, Copper; Tanant, Jonathan; Gabriele Guidi and Roberto Scopigno and Pere Brunet
We have completed a prototype app on our way to a fully 3D historically accurate virtual reality reconstruction of the lost Labyrinthe of Versailles. This app currently supports a variety of devices including desktop/laptop computers for the ''stationary'' experience, GPS- and gyroscopic-enabled iOS and Android smartphones and tablets for the ''augmented reality'' experience when in the gardens of Versailles, and the Oculus Rift headset for the ''immersive'' experience. Each device/experience places different demands on the user interface. We discuss here the pros, cons, and challenges of each.
New Memory Spaces for Cultural History - Digital Heritage Games in a Augmented World
(IEEE, 2015) Haake, Susanne; Müller, Wolfgang; Gabriele Guidi and Roberto Scopigno and Pere Brunet
In this contribution we explore the challenges and opportunities of innovative mobile historical experiences in the domain of commemorative culture. We present two prototypes conceptualized and implemented for a mobile experience in this field, one as an experiment to apply gamification concepts in this domain, the other one in the utilization of AR technologies. We present first findings on critical aspects and challenges discovered in the development of these prototypes.
Enabling Social Interaction in the Museum through the Social Display Environment
(IEEE, 2015) Diaz, Paloma; Bellucci, Andrea; Aedo, Ignacio; Gabriele Guidi and Roberto Scopigno and Pere Brunet
Visitors of museums and cultural heritage sites are not different from other types of citizens and, hence, they are getting more and more engaged into a participatory culture that encourages them to play an active role and not only acting as information consumers. In this paper we describe a technological platform that makes it possible to enable such proactive behavior by supporting social storytelling and interaction in the domain of cultural heritage sites. The platform development was inspired by a workshop run with cultural heritage professionals and students who identified social interaction as a key feature of an enhanced experience with cultural objects.
The WAVEcam: Ultra-High Resolution Imaging of Paintings
(IEEE, 2015) Stout, Samantha; Strawson, James; Lo, Eric; Kuester, Falko; Gabriele Guidi and Roberto Scopigno and Pere Brunet
The WAVEcam has been designed to automate and accelerate the workflow for technical photography and spectroscopy in the digital documentation of relatively planar cultural heritage artifacts. The imaging platform allows for customized usage scenarios through the ability to design and fabricate mounting brackets based on need. In this case-study based demonstration of the WAVEcam, we show enhancements of the typical workflow, including speed, resolution, and user involvement through the implementation of technical photography (acquiring multispectral mosaic images), and x-ray fluorescence point-based spectroscopy for heritage documentation and diagnostics. The WAVEcam is a robust ultra-high resolution imaging platform uniquely adapted to acquiring images for wide-angle visualization environments.
Leicester Castle Tells its Story: Beacon-based Mobile Interpretation for Historic Buildings
(IEEE, 2015) Vavoula, Giasemi; Tseliou, Maria-Anna; Coleman, Sally; Ffoster-Jones, Rheinallt; Long, Paul; Simpson, Esther; Gabriele Guidi and Roberto Scopigno and Pere Brunet
This paper presents work-in-progress on the design and integration of Bluetooth Low Energy (BLE) beacon-based mobile interpretation in historic buildings, and the ways in which it can impact the visitor experience. The session will discuss generic interpretation requirements as they emerged from visitor research, literature reviews, and consultation with stakeholders; map these requirements onto the beacon-based app developed by the Leicester Castle tells its story project; and present findings on the transformative potential of beacon-based interpretation on the ways visitors interact with historic buildings, engage with their stories, and learn.
Innovative Systems for the Enjoyment of Pictorial Works - The Experience of Gallerie dell'Accademia Museum in Venice
(IEEE, 2015) Pantile, Davide; Frasca, Roberto; Mazzeo, Antonio; Ventrella, Matteo; Verreschi, Giovanni; Gabriele Guidi and Roberto Scopigno and Pere Brunet
This paper will describe the multimedia solutions designed and developed by ETT s.p.a. ICT company for the set-up of a new wing of the Gallerie dell'Accademia Museum in Venice (Italy), reopened to the public with the contribution of Samsung in collaboration with Venetian Heritage Foundation. The new exhibition contains 46 works by various artists including Maffei, Tiepolo, Veronese and Hayez and others combined with digital totem, interactive display, Augmented Reality content, beacon sensors and a Smart Classroom to support didactic activities. The multimedia solutions designed for the Gallerie offer a new way to learn about art, offering visitors a variety of tools and opportunities to improve the involvement in the guided tour, a real multimedia journey through Venetian art of the seventeenth and eighteenth centuries through detailed images of paintings, video content, 3D reconstructions of paintings and restoration procedures. The use of new technologies makes it possible to offer visitors personalized pathways of visit, adapted to different age groups and interests.
Environment Map Based Lighting for Reflectance Transformation Images
(IEEE, 2015) Ludwig, Michael; Meyer, Gary; Gabriele Guidi and Roberto Scopigno and Pere Brunet
Environment map based lighting has proven to be an effective technique in simulations and real time rendering for adding realism and conveying complex illumination to the viewer. We present a novel algorithm for using environment maps to light and render polynomial texture maps. The technique is demonstrated with reflectance transformation images stored using both polynomial texture maps and hemispherical harmonics. The limitations of employing hemispherical harmonics in this context are discussed.
A Contextualized Educational Museum Experience - Connecting Objects, Places and Themes Through Mobile Virtual Museums
(IEEE, 2015) Graf, Holger; Keil, Jens; Engelke, Timo; Pagano, Alfonsina; Pescarin, Sofia; Gabriele Guidi and Roberto Scopigno and Pere Brunet
This paper presents the results of ongoing work realizing a mobile virtual museum that enables the connection between locally dispersed museums, collections and artefacts. The mobile application interconnects venues, objects and stories for an enhanced user experience and increased learnability inside the museum. It contextualizes information and reveals missing and hidden links between the digital replicas of the objects displayed in four different venues under one storyline. Within this context, we also provide a preliminary evaluation on how the mobile virtual museum could be used as support to indirect formal learning of young visitors, improving memorability.
The Digital ArchiMusic Patterns in Alhambra
(IEEE, 2015) Elrawi, Osama; Gabriele Guidi and Roberto Scopigno and Pere Brunet
This paper is a part of an ongoing research project that is seeking to clarify the interrelationship between the architecture of the Alhambra and Andalusian music at that time. Despite that Alhambra was built long ago before the recent digital age, but it contains some phenomena's that points out to the relationship between 2D and 3D patterns and the type of music at that time. The term ''digital'' was never known at that time, but the basis of digital knowledge did exist, even if tools and equipment's did not. This research paper is seeking to clarify this theoretical basis that proves the interrelationship between architecture and music and to proof that both were stemming from one integrated cosmological source.
VR Multiple Channel Authoring with Immersive Display
(IEEE, 2015) Farouk, Mohamed; Ibrahim, Mohamed Ismail; Mustafa, Karam; Gabriele Guidi and Roberto Scopigno and Pere Brunet
The virtual reality and real time 3D technology in addition to many other display technologies are getting more and more into our life nowadays. The spread of smart portable devices is changing our style of life, day after day with very rapid advance in technology and capabilities. It is very common now to have VR application either for standalone U; desktop, Web, mobile apps, or even special immersive systems like cave, simulators etc. The usual practice especially for immersive display systems is that a separate application being developed for that specific platform. Accordingly, a lot of repeated work has to be done. In this paper we are going to illustrate our experience in the development of Virtual Reality applications, with the methodology of developing a single application for multiple platforms with slight modifications. Then a Unity 3D plug-in developed to convert any VR application developed using Unity 3D to our immersive display system Culturama, is presented.
Virtual Museums and Audience Studies, the Case of ''Keys To Rome'' Exhibition
(IEEE, 2015) Pagano, Alfonsina; Armone, Giulia; Sanctis, Elisabetta De; Gabriele Guidi and Roberto Scopigno and Pere Brunet
In this paper we present an overview of two audience studies aimed at identifying museum visitors' attitudes, behaviours and expectations. In the framework of VMUST. NET an interactive exhibition, named ''Keys To Rome'', has been organized within the Imperial Fora Museum, Rome. Permanent collection has been integrated with a digital itinerary using computer graphics movies, natural interaction installations, multimedia supports and mobile applications. The evaluation of the audience feedback allowed us to study and justify some interaction choices and communication paradigms made so to enhance the user experience and enabling a fruitful discussion around virtual museums dissemination into cultural heritage environments. What came out is the need for technology to remain invisible and grant a cross-referencing visit path in a continuous parallelism between real objects and their digital copies.
Improved Appearance Rendering for Photogrammetrically Acquired 3D Models
(IEEE, 2015) Berrier, Seth; Tetzlaff, Michael; Ludwig, Michael; Meyer, Gary; Gabriele Guidi and Roberto Scopigno and Pere Brunet
In this paper we present a technique for significantly improved rendering of objects scanned using photogrammetry techniques. We demonstrate the connection between photogrammetry and the unstructured lumigraph, a surface light field representation and rendering algorithm. We use our lumigraph rendering software to demonstrate improved results from photographically acquired cultural heritage artifacts. We discuss our improvements to the rendering of unstructured lumigraphs on modern hardware and offer this rendering tool as free, open source software.

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