GCH 2019 - Eurographics Workshop on Graphics and Cultural Heritage

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https://diglib.eg.org/handle/10.2312/2632818

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Browsing GCH 2019 - Eurographics Workshop on Graphics and Cultural Heritage by Subject "centered computing"

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    Augmented Reality (AR) Maps for Experiencing Creative Narratives of Cultural Heritage
    (The Eurographics Association, 2019) Echavarria, Karina Rodriguez; Dibble, Laurie; Bracco, Aurelie; Silverton, Edward; Dixon, Sophie; Rizvic, Selma and Rodriguez Echavarria, Karina
    This research investigates how communities can meaningfully connect with Cultural Heritage through creative and digital experiences. It also explores how entry barriers can be lowered for a wider set of audiences to increase their participation in such experiences. For this, the research investigates the use of creative and narrative-based approaches, given the potential for stories to illuminate different viewpoints and interpretations of Cultural Heritage. The paper's main technical contribution is a novel approach for re-telling communities' narratives linked to people, objects, sites and events in the urban landscape as told by the community. The research proposed the novel concept of Augmented Reality (AR) Maps, which are physical maps with augmented digital narratives and delivered through Immersive Web technology. This concept is proposed as a means to document and disseminate the narratives in a way which can enhance the public understanding and appreciation of objects and sites in their communities. The approach has been tested with 32 children in local primary school in the city of Brighton and Hove (UK) in order to understand its suitability for community engagement. The significance of the research is that it demonstrates the potential of both creative and digital approaches for enabling meaningful engagement with the Cultural Heritage, while improving the well-being of the participants as well as their sense of community and place.
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    Can Augmented Reality Enhance to a Greater Visitor Satisfaction of Historical Landmarks?
    (The Eurographics Association, 2019) Wakefield, Connor; Simons, Alain; John, David; Rizvic, Selma and Rodriguez Echavarria, Karina
    Augmented reality (AR) is gradually becoming more common for marketing of tourist locations to enhance the visitor experience. But do visitors of historical events value the use of this technology and if so, are they willing to pay extra for the experience? As a case study, Calshot castle, part of British Heritage and situated in the New Forest was selected to research if visitors of an event at a historical location identified the use of Augmented Reality as an improvement to their visitor experience and were willing to pay extra for the experience. As the basis for the research an AR prototype was developed that allowed a 3D representation to be projected on top of the screen of a mobile device and as such delivering computer-generated perceptual information in a constructive way on a selected topic both visually and textually. The overlaid sensory information made use of a QR code. Analysis of the results revealed differences in perception between different age groups.
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    End-to-end Color 3D Reproduction of Cultural Heritage Artifacts: Roseninsel Replicas
    (The Eurographics Association, 2019) Domajnko, Matevz; Tanksale, Tejas; Tausch, Reimar; Ritz, Martin; Knuth, Martin; Santos, Pedro; Fellner, Dieter W.; Rizvic, Selma and Rodriguez Echavarria, Karina
    Planning exhibitions of cultural artifacts is always challenging. Artifacts can be very sensitive to the environment and therefore their display can be risky. One way to circumvent this is to build replicas of these artifacts. Here, 3D digitization and reproduction, either physical via 3D printing or virtual, using computer graphics, can be the method of choice. For this use case we present a workflow, from photogrammetric acquisition in challenging environments to representation of the acquired 3D models in different ways, such as online visualization and color 3D printed replicas. This work can also be seen as a first step towards establishing a workflow for full color end-to-end reproduction of artifacts. Our workflow was applied on cultural artifacts found around the ''Roseninsel'' (Rose Island), an island in Lake Starnberg (Bavaria), in collaboration with the Bavarian State Archaeological Collection in Munich. We demonstrate the results of the end-to-end reproduction workflow leading to virtual replicas (online 3D visualization, virtual and augmented reality) and physical replicas (3D printed objects). In addition, we discuss potential optimizations and briefly present an improved state-of-the-art 3D digitization system for fully autonomous acquisition of geometry and colors of cultural heritage objects.
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    Virtual Reality Experience of Sarajevo War Heritage
    (The Eurographics Association, 2019) Rizvic, Selma; Boskovic, Dusanka; Okanovic, Vensada; Kihic, Ivona Ivkovic; Sljivo, Sanda; Rizvic, Selma and Rodriguez Echavarria, Karina
    Sarajevo War Tunnel can not be visited any more. It was closed just after the war due to the airport runway security. A small part (20m) can be seen in the Tunnel Museum. The only way to experience passing through this object, crucial for Sarajevo survival during the war, is Virtual Reality (VR). The paper describes the Sarajevo War Tunnel VR project, a virtual cultural heritage application combining VR storytelling about the Sarajevo siege with the VR simulation of the tunnel crossing. The user experience evaluation shows the potential of VR technologies in presentation of dark heritage.
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    Web-based Multi-layered Exploration of Annotated Image-based Shape and Material Models
    (The Eurographics Association, 2019) Villanueva, Alberto Jaspe; Pintus, Ruggero; Giachetti, Andrea; Gobbetti, Enrico; Rizvic, Selma and Rodriguez Echavarria, Karina
    We introduce a novel versatile approach for letting users explore detailed image-based shape and material models integrated with structured, spatially-associated descriptive information. We represent the objects of interest as a series of registered layers of image-based shape and material information. These layers are represented at multiple scales, and can come out of a variety of pipelines and include both RTI representations and spatially-varying normal and BRDF fields, eventually as a result of fusing multi-spectral data. An overlay image pyramid associates visual annotations to the various scales. The overlay pyramid of each layer can be easily authored at data preparation time using widely available image editing tools. At run-time, an annotated multi-layered dataset is made available to clients by a standard web server. Users can explore these datasets on a variety of devices, from mobile phones to large scale displays in museum installations, using JavaScript/WebGL2 clients capable to perform layer selection, interactive relighting and enhanced visualization, annotation display, and focus-and-context multiple-layer exploration using a lens metaphor. The capabilities of our approach are demonstrated on a variety of cultural heritage use cases involving different kinds of annotated surface and material models.