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dc.contributor.authorBechtold, Sebastianen_US
dc.contributor.authorKrömker, Susanneen_US
dc.contributor.authorMara, Huberten_US
dc.contributor.authorKratzmüller, Bettinaen_US
dc.contributor.editorAlessandro Artusi and Morwena Joly and Genevieve Lucet and Denis Pitzalis and Alejandro Ribesen_US
dc.date.accessioned2014-01-31T18:45:22Z
dc.date.available2014-01-31T18:45:22Z
dc.date.issued2010en_US
dc.identifier.isbn978-3-905674-29-3en_US
dc.identifier.issn1811-864Xen_US
dc.identifier.urihttp://dx.doi.org/10.2312/VAST/VAST10/079-086en_US
dc.description.abstractA 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.en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.3.3 [Computer Graphics]: Picture/Image Generation-I.3.7 [Computer Graphics]: Three-dimensional Graphics and Realism-I.3.7 [Computer Graphics]: Color, Shading, Shadowing, and Texture-J.5 [Arts and Humanities]: Fine Artsen_US
dc.titleRollouts of Fine Ware Pottery using High Resolution 3D Meshesen_US
dc.description.seriesinformationVAST: International Symposium on Virtual Reality, Archaeology and Intelligent Cultural Heritageen_US


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