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    • VAST10: The 11th International Symposium on Virtual Reality, Archaeology and Intelligent Cultural Heritage
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    Rollouts of Fine Ware Pottery using High Resolution 3D Meshes

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    079-086.pdf (1.411Mb)
    Date
    2010
    Author
    Bechtold, Sebastian
    Krömker, Susanne
    Mara, Hubert
    Kratzmüller, Bettina
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    Abstract
    A common part of the documentation of archaeological finds is the drawing of so-called rollouts. Rollouts provide a complete and continuous depiction of graphical elements on the surface of rotation-symmetric objects and are especially useful for the iconographic interpretation of figurative vase painting. In the past, rollouts were created either by manual drawing or photographically. We propose a new method to generate rollouts in which the tedious process of manual drawing or the disadvantage of having to decide on a specific projection in advance of any photographical process is replaced by the acquisition of a digital coloured surface model using a structured-light 3D scanner. This model is then used to generate high-quality rollouts with arbitrary projection parameters. To handle curved vessel profiles, we divide the vessel's surface into multiple segments. Each segment is then approximated with a frustum which serves as a developable auxiliary surface. In the rollout generation process, the vessel's surface is projected onto a frustum's mantle, which is then developed into the image plane. The shape of each frustum is selected in such a way that projection distortions are minimized, but interrelated graphical features like figural friezes are still unrolled in one piece. To control distortion effects in rollouts of non-developable surfaces, we investigated the use of cartographic methods. A first implementation of our method generates true-to-scale rollouts from meshes provided as PLY files and writes them to a raster image file. Our program uses off-screen OpenGL in combination with tiled rendering to generate high-resolution images which are suited for professional printing. Exemplary results from the Austrian Corpus Vasorum Antiquorum (CVA) project of the Kunsthistorisches Museum Wien (KHM - Museum of Art History in Vienna) and the Universalmuseum Joanneum Graz (UMJ) are shown.
    BibTeX
    @inproceedings {10.2312:VAST:VAST10:079-086,
    booktitle = {VAST: International Symposium on Virtual Reality, Archaeology and Intelligent Cultural Heritage},
    editor = {Alessandro Artusi and Morwena Joly and Genevieve Lucet and Denis Pitzalis and Alejandro Ribes},
    title = {{Rollouts of Fine Ware Pottery using High Resolution 3D Meshes}},
    author = {Bechtold, Sebastian and Krömker, Susanne and Mara, Hubert and Kratzmüller, Bettina},
    year = {2010},
    publisher = {The Eurographics Association},
    ISSN = {1811-864X},
    ISBN = {978-3-905674-29-3},
    DOI = {10.2312/VAST/VAST10/079-086}
    }
    URI
    http://dx.doi.org/10.2312/VAST/VAST10/079-086
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    • VAST10: The 11th International Symposium on Virtual Reality, Archaeology and Intelligent Cultural Heritage

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    Eurographics Association copyright © 2013 - 2023 
    Send Feedback | Contact - Imprint | Data Privacy Policy | Disable Google Analytics
    Theme by @mire NV
    System hosted at  Graz University of Technology.
    TUGFhA