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    <title language="eng">Non-invasive imaging methods applied to neo- and paleontological cephalopod research</title>
    <abstract language="eng">Several non-invasive methods are common practice in natural sciences today. Here we present how they can be applied and contribute to current topics in cephalopod (paleo-) biology. Different methods will be compared in terms of time necessary to acquire the data, amount of data, accuracy/resolution, minimum/maximum size of objects that can be studied, the degree of post-processing needed and availability. The main application of the methods is seen in morphometry and volumetry of cephalopod shells. In particular we present a method for precise buoyancy calculation. Therefore, cephalopod shells were scanned together with different reference bodies, an approach developed in medical sciences. It is necessary to know the volume of the reference bodies, which should have similar absorption properties like the object of interest. Exact volumes can be obtained from surface scanning. Depending on the dimensions of the study object different computed tomography techniques were applied.</abstract>
    <parentTitle language="eng">Biogeosciences</parentTitle>
    <identifier type="doi">10.5194/bg-11-2721-2014</identifier>
    <note>To access the corresponding discussion paper go to www.biogeosciences-discuss.net/10/18803/2013/ - Biogeosciences Discuss., 10, 18803-18851, 2013</note>
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    <author>René Hoffmann</author>
    <author>Julia A. Schultz</author>
    <author>Rico Schellhorn</author>
    <author>Erik Rybacki</author>
    <author>Helmut Keupp</author>
    <author>S. R. Gerden</author>
    <author>Robert Lemanis</author>
    <author>Stefan Zachow</author>
    <collection role="institutes" number="vis">Visual Data Analysis</collection>
    <collection role="institutes" number="medplan">Therapy Planning</collection>
    <collection role="persons" number="zachow">Zachow, Stefan</collection>
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    <title language="eng">Non-invasive imaging methods applied to neo- and paleo-ontological cephalopod research</title>
    <abstract language="eng">Several non-invasive methods are common practice in natural sciences today. Here we present how they can be applied and contribute to current topics in cephalopod (paleo-) biology. Different methods will be compared in terms of time necessary to acquire the data, amount of data, accuracy/resolution, minimum/maximum size of objects that can be studied, the degree of post-processing needed and availability. The main application of the methods is seen in morphometry and volumetry of cephalopod shells. In particular we present a method for precise buoyancy calculation. Therefore, cephalopod shells were scanned together with different reference bodies, an approach developed in medical sciences. It is necessary to know the volume of the reference bodies, which should have similar absorption properties like the object of interest. Exact volumes can be obtained from surface scanning. Depending on the dimensions of the study object different computed tomography techniques were applied.</abstract>
    <identifier type="issn">1438-0064</identifier>
    <identifier type="urn">urn:nbn:de:0297-zib-50300</identifier>
    <identifier type="doi">10.5194/bg-11-2721-2014</identifier>
    <enrichment key="SourceTitle">Appeared in: Biogeosciences 11 (2014) 2721-2739</enrichment>
    <author>René Hoffmann</author>
    <author>Julia A. Schultz</author>
    <author>Rico Schellhorn</author>
    <author>Erik Rybacki</author>
    <author>Helmut Keupp</author>
    <author>Robert Lemanis</author>
    <author>Stefan Zachow</author>
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      <title>ZIB-Report</title>
      <number>14-18</number>
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