GCH 2016 - Eurographics Workshop on Graphics and Cultural Heritage

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https://diglib.eg.org/handle/10.2312/2630933

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Browsing GCH 2016 - Eurographics Workshop on Graphics and Cultural Heritage by Subject "Applications"

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    Interactive 3D Exploration of a Virtual Sculpture Collection: an Analysis of User Behavior in Museum Settings
    (The Eurographics Association, 2016) Agus, Marco; Marton, Fabio; Bettio, Fabio; Gobbetti, Enrico; Chiara Eva Catalano and Livio De Luca
    We present a usage analysis of an interactive system for the exploration of highly detailed 3D models of a collection of protostoric mediterranean sculptures. In this system, after selecting the object of interest inside the collection, its detailed 3D model and associated information are presented at high resolution on a large vertical display controlled by a touch-enabled horizontal surface placed at a suitable distance in front of it. The indirect user interface combines an object-aware interactive camera controller with an interactive point-of-interest selector and is implemented within a scalable implementation based on multiresolution structures shared between the rendering and user interaction subsystems. The system has been installed in several temporary and permanent exhibitions, and has been extensively used by tens of thousands of visitors. We provide here a data-driven analysis of usage experience based on logs gathered during a 24 months period in four exhibitions in Archeological museums, for a total of over 75K exploration sessions. The results highlight the main trends in visitor behavior during the interactive sessions, which can provide useful insights for the design of 3D exploration user interfaces in future digital installations.
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    Representation and Visualization of Urban Fabric through Historical Documents
    (The Eurographics Association, 2016) Samuel, John; Périnaud, Clémentine; Servigne, Sylvie; Gay, Georges; Gesquière, Gilles; Chiara Eva Catalano and Livio De Luca
    Documents serve an important role in understanding change in urban fabric. The available multidimensional (spatial, temporal and thematic) information in these documents narrate not only the various features of the elements of the urban fabric but also notifies their changes during time. CityGML standard is used to spatially and temporally represent the city objects. But it misses features to represent city lifecycle and its linked documents. The first part has been addressed recently. In this article, we propose an extension to CityGML standard to integrate city objects and relevant associated documents. Proposing a solution based on standards permits data interoperability. We also briefly describe how these documents are visualized in our current 3D urban environment prototype built over CityGML.