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  <doc>
    <id>6301</id>
    <completedYear/>
    <publishedYear>2016</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>2016-12-07</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Virtual Access to Hidden Texts – Study of Ancient Papyri</title>
    <abstract language="eng">When physical unfolding/unrolling of papyri is not possible or too dangerous for preserving the precious object, tomographic approaches may be the ap- propriate alternative. Requirements are the resolution and the contrast to distinguish writing and substrate. The steps to be performed are the following: (1) Select the object of interest (archaeological arguments, cultural back- ground of the object, etc.). (2) Find the proper physical procedure, especially with respect to contrast, take the tomographic data, e.g. by absorption x-ray tomography. (3) Apply mathematical unfolding transformations to the tomographic data, in order to obtain a 2d-planar reconstruction of text.</abstract>
    <parentTitle language="eng">Eighth Joint BER II and BESSY II User Meeting, Dec 7-9, 2016, Berlin, Germany</parentTitle>
    <enrichment key="PeerReviewed">no</enrichment>
    <author>Tobias Arlt</author>
    <submitter>Hans-Christian Hege</submitter>
    <author>Norbert Lindow</author>
    <author>Daniel Baum</author>
    <author>Andre Hilger</author>
    <author>Ingo Mahnke</author>
    <author>Hans-Christian Hege</author>
    <author>Verena Lepper</author>
    <author>Tzulia Siopi</author>
    <author>Heinz.Eberhard Mahnke</author>
    <collection role="institutes" number="vis">Visual Data Analysis</collection>
    <collection role="persons" number="baum">Baum, Daniel</collection>
    <collection role="persons" number="hege">Hege, Hans-Christian</collection>
    <collection role="persons" number="norbert.lindow">Lindow, Norbert</collection>
    <collection role="projects" number="PAPYRUS">PAPYRUS</collection>
    <collection role="institutes" number="VDcC">Visual and Data-centric Computing</collection>
  </doc>
  <doc>
    <id>7430</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted>2020</thesisYearAccepted>
    <language>eng</language>
    <pageFirst>264</pageFirst>
    <pageLast>269</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>41</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2019-07-30</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Virtual unfolding of folded papyri</title>
    <abstract language="eng">The historical importance of ancient manuscripts is unique since they provide information about the heritage of ancient cultures. Often texts are hidden in rolled or folded documents. Due to recent impro- vements in sensitivity and resolution, spectacular disclosures of rolled hidden texts were possible by X-ray tomography. However, revealing text on folded manuscripts is even more challenging. Manual unfolding is often too risky in view of the fragile condition of fragments, as it can lead to the total loss of the document. X-ray tomography allows for virtual unfolding and enables non-destructive access to hid- den texts. We have recently demonstrated the procedure and tested unfolding algorithms on a mockup sample. Here, we present results on unfolding ancient papyrus packages from the papyrus collection of the Musée du Louvre, among them objects folded along approximately orthogonal folding lines. In one of the packages, the first identification of a word was achieved, the Coptic word for “Lord”.</abstract>
    <parentTitle language="eng">Journal of Cultural Heritage</parentTitle>
    <identifier type="doi">10.1016/j.culher.2019.07.007</identifier>
    <enrichment key="PeerReviewed">yes</enrichment>
    <enrichment key="AcceptedDate">2019/07/11</enrichment>
    <enrichment key="PreprintUrn">urn:nbn:de:0297-zib-74338</enrichment>
    <author>Heinz-Eberhard Mahnke</author>
    <submitter>Daniel Baum</submitter>
    <author>Tobias Arlt</author>
    <author>Daniel Baum</author>
    <author>Hans-Christian Hege</author>
    <author>Felix Herter</author>
    <author>Norbert Lindow</author>
    <author>Ingo Manke</author>
    <author>Tzulia Siopi</author>
    <author>Eve Menei</author>
    <author>Marc Etienne</author>
    <author>Verena Lepper</author>
    <collection role="institutes" number="vis">Visual Data Analysis</collection>
    <collection role="institutes" number="visalgo">Visual Data Analysis in Science and Engineering</collection>
    <collection role="institutes" number="vissys">Image Analysis in Biology and Materials Science</collection>
    <collection role="persons" number="baum">Baum, Daniel</collection>
    <collection role="persons" number="hege">Hege, Hans-Christian</collection>
    <collection role="persons" number="norbert.lindow">Lindow, Norbert</collection>
    <collection role="projects" number="PAPYRUS">PAPYRUS</collection>
    <collection role="institutes" number="VDcC">Visual and Data-centric Computing</collection>
  </doc>
  <doc>
    <id>7433</id>
    <completedYear/>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>reportzib</type>
    <publisherName/>
    <publisherPlace/>
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    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>2019-08-09</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Virtual unfolding of folded papyri</title>
    <abstract language="eng">The historical importance of ancient manuscripts is unique since they provide information about the heritage of ancient cultures. Often texts are hidden in rolled or folded documents. Due to recent impro- vements in sensitivity and resolution, spectacular disclosures of rolled hidden texts were possible by X-ray tomography. However, revealing text on folded manuscripts is even more challenging. Manual unfolding is often too risky in view of the fragile condition of fragments, as it can lead to the total loss of the document. X-ray tomography allows for virtual unfolding and enables non-destructive access to hid- den texts. We have recently demonstrated the procedure and tested unfolding algorithms on a mockup sample. Here, we present results on unfolding ancient papyrus packages from the papyrus collection of the Musée du Louvre, among them objects folded along approximately orthogonal folding lines. In one of the packages, the first identification of a word was achieved, the Coptic word for “Lord”.</abstract>
    <identifier type="issn">1438-0064</identifier>
    <identifier type="urn">urn:nbn:de:0297-zib-74338</identifier>
    <author>Heinz-Eberhard Mahnke</author>
    <submitter>Daniel Baum</submitter>
    <author>Tobias Arlt</author>
    <author>Daniel Baum</author>
    <author>Hans-Christian Hege</author>
    <author>Felix Herter</author>
    <author>Norbert Lindow</author>
    <author>Ingo Manke</author>
    <author>Tzulia Siopi</author>
    <author>Eve Menei</author>
    <author>Marc Etienne</author>
    <author>Verena Lepper</author>
    <series>
      <title>ZIB-Report</title>
      <number>19-44</number>
    </series>
    <collection role="institutes" number="vis">Visual Data Analysis</collection>
    <collection role="persons" number="baum">Baum, Daniel</collection>
    <collection role="persons" number="hege">Hege, Hans-Christian</collection>
    <collection role="persons" number="norbert.lindow">Lindow, Norbert</collection>
    <collection role="projects" number="PAPYRUS">PAPYRUS</collection>
    <collection role="institutes" number="VDcC">Visual and Data-centric Computing</collection>
    <file>https://opus4.kobv.de/opus4-zib/files/7433/ZR-19-44.pdf</file>
  </doc>
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