Dataset Open Access

Tomographic X-ray data of a walnut

Hämäläinen, Keijo; Harhanen, Lauri; Kallonen, Aki; Kujanpää, Antti; Niemi, Esa; Siltanen, Samuli

DCAT Export

<?xml version='1.0' encoding='utf-8'?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:adms="http://www.w3.org/ns/adms#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dct="http://purl.org/dc/terms/" xmlns:dctype="http://purl.org/dc/dcmitype/" xmlns:dcat="http://www.w3.org/ns/dcat#" xmlns:duv="http://www.w3.org/ns/duv#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:frapo="http://purl.org/cerif/frapo/" xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#" xmlns:gsp="http://www.opengis.net/ont/geosparql#" xmlns:locn="http://www.w3.org/ns/locn#" xmlns:org="http://www.w3.org/ns/org#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:prov="http://www.w3.org/ns/prov#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:schema="http://schema.org/" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:vcard="http://www.w3.org/2006/vcard/ns#" xmlns:wdrs="http://www.w3.org/2007/05/powder-s#">
  <rdf:Description rdf:about="https://doi.org/10.5281/zenodo.1254206">
    <rdf:type rdf:resource="http://www.w3.org/ns/dcat#Dataset"/>
    <dct:type rdf:resource="http://purl.org/dc/dcmitype/Dataset"/>
    <dct:identifier rdf:datatype="http://www.w3.org/2001/XMLSchema#anyURI">https://doi.org/10.5281/zenodo.1254206</dct:identifier>
    <foaf:page rdf:resource="https://doi.org/10.5281/zenodo.1254206"/>
    <dct:creator>
      <rdf:Description>
        <rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Agent"/>
        <foaf:name>Hämäläinen, Keijo</foaf:name>
        <foaf:givenName>Keijo</foaf:givenName>
        <foaf:familyName>Hämäläinen</foaf:familyName>
        <org:memberOf>
          <foaf:Organization>
            <foaf:name>University of Helsinki</foaf:name>
          </foaf:Organization>
        </org:memberOf>
      </rdf:Description>
    </dct:creator>
    <dct:creator>
      <rdf:Description>
        <rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Agent"/>
        <foaf:name>Harhanen, Lauri</foaf:name>
        <foaf:givenName>Lauri</foaf:givenName>
        <foaf:familyName>Harhanen</foaf:familyName>
        <org:memberOf>
          <foaf:Organization>
            <foaf:name>Aalto University</foaf:name>
          </foaf:Organization>
        </org:memberOf>
      </rdf:Description>
    </dct:creator>
    <dct:creator>
      <rdf:Description>
        <rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Agent"/>
        <foaf:name>Kallonen, Aki</foaf:name>
        <foaf:givenName>Aki</foaf:givenName>
        <foaf:familyName>Kallonen</foaf:familyName>
        <org:memberOf>
          <foaf:Organization>
            <foaf:name>University of Helsinki</foaf:name>
          </foaf:Organization>
        </org:memberOf>
      </rdf:Description>
    </dct:creator>
    <dct:creator>
      <rdf:Description>
        <rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Agent"/>
        <foaf:name>Kujanpää, Antti</foaf:name>
        <foaf:givenName>Antti</foaf:givenName>
        <foaf:familyName>Kujanpää</foaf:familyName>
        <org:memberOf>
          <foaf:Organization>
            <foaf:name>University of Helsinki</foaf:name>
          </foaf:Organization>
        </org:memberOf>
      </rdf:Description>
    </dct:creator>
    <dct:creator>
      <rdf:Description>
        <rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Agent"/>
        <foaf:name>Niemi, Esa</foaf:name>
        <foaf:givenName>Esa</foaf:givenName>
        <foaf:familyName>Niemi</foaf:familyName>
        <org:memberOf>
          <foaf:Organization>
            <foaf:name>University of Helsinki</foaf:name>
          </foaf:Organization>
        </org:memberOf>
      </rdf:Description>
    </dct:creator>
    <dct:creator>
      <rdf:Description>
        <rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Agent"/>
        <foaf:name>Siltanen, Samuli</foaf:name>
        <foaf:givenName>Samuli</foaf:givenName>
        <foaf:familyName>Siltanen</foaf:familyName>
        <org:memberOf>
          <foaf:Organization>
            <foaf:name>University of Helsinki</foaf:name>
          </foaf:Organization>
        </org:memberOf>
      </rdf:Description>
    </dct:creator>
    <dct:title>Tomographic X-ray data of a walnut</dct:title>
    <dct:publisher>
      <foaf:Agent>
        <foaf:name>Zenodo</foaf:name>
      </foaf:Agent>
    </dct:publisher>
    <dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#gYear">2015</dct:issued>
    <dcat:keyword>X-ray</dcat:keyword>
    <dcat:keyword>Radon transform</dcat:keyword>
    <dcat:keyword>inverse problem</dcat:keyword>
    <dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2015-02-11</dct:issued>
    <dct:language rdf:resource="http://publications.europa.eu/resource/authority/language/ENG"/>
    <owl:sameAs rdf:resource="https://zenodo.org/record/1254206"/>
    <adms:identifier>
      <adms:Identifier>
        <skos:notation rdf:datatype="http://www.w3.org/2001/XMLSchema#anyURI">https://zenodo.org/record/1254206</skos:notation>
        <adms:schemeAgency>url</adms:schemeAgency>
      </adms:Identifier>
    </adms:identifier>
    <foaf:page rdf:resource="https://arxiv.org/abs/1502.04064"/>
    <dct:isVersionOf rdf:resource="https://doi.org/10.5281/zenodo.1254205"/>
    <dct:isPartOf rdf:resource="https://zenodo.org/communities/fips"/>
    <owl:versionInfo>1.0.0</owl:versionInfo>
    <dct:description>&lt;p&gt;This is an open-access dataset of tomographic X-ray data of a walnut. The dataset consists of the X-ray sinogram of a single 2D slice of the walnut with three different resolutions and the corresponding measurement matrices modeling the linear operation of the X-ray transform. Each of these sinograms was obtained from a measured 120-projection fan-beam sinogram by down-sampling and taking logarithms. The original (measured) sinogram is also provided in its original form and resolution.&lt;/p&gt; &lt;p&gt;In addition, a larger set of 1200 projections of the same walnut was measured and a high-resolution filtered back-projection reconstruction was computed from this data; both the sinogram and the FBP reconstruction are included in the dataset, the latter serving as a ground truth reconstruction.&lt;/p&gt; &lt;p&gt;Documentation of the dataset is available at &lt;a href="https://arxiv.org/abs/1502.04064"&gt;arxiv.org/abs/1502.04064&lt;/a&gt;. See also &lt;a href="https://www.fips.fi/dataset.php"&gt;www.fips.fi/dataset.php&lt;/a&gt;.&lt;/p&gt;</dct:description>
    <dct:accessRights rdf:resource="http://publications.europa.eu/resource/authority/access-right/PUBLIC"/>
    <dct:accessRights>
      <dct:RightsStatement rdf:about="info:eu-repo/semantics/openAccess">
        <rdfs:label>Open Access</rdfs:label>
      </dct:RightsStatement>
    </dct:accessRights>
    <dcat:distribution>
      <dcat:Distribution>
        <dct:license rdf:resource="https://creativecommons.org/licenses/by/4.0/legalcode"/>
        <dcat:accessURL rdf:resource="https://doi.org/10.5281/zenodo.1254206"/>
      </dcat:Distribution>
    </dcat:distribution>
    <dcat:distribution>
      <dcat:Distribution>
        <dcat:accessURL rdf:resource="https://doi.org/10.5281/zenodo.1254206"/>
        <dcat:byteSize>33170733</dcat:byteSize>
        <dcat:downloadURL rdf:resource="https://zenodo.org/record/1254206/files/Data164.mat"/>
      </dcat:Distribution>
    </dcat:distribution>
    <dcat:distribution>
      <dcat:Distribution>
        <dcat:accessURL rdf:resource="https://doi.org/10.5281/zenodo.1254206"/>
        <dcat:byteSize>135758292</dcat:byteSize>
        <dcat:downloadURL rdf:resource="https://zenodo.org/record/1254206/files/Data328.mat"/>
      </dcat:Distribution>
    </dcat:distribution>
    <dcat:distribution>
      <dcat:Distribution>
        <dcat:accessURL rdf:resource="https://doi.org/10.5281/zenodo.1254206"/>
        <dcat:byteSize>8083003</dcat:byteSize>
        <dcat:downloadURL rdf:resource="https://zenodo.org/record/1254206/files/Data82.mat"/>
      </dcat:Distribution>
    </dcat:distribution>
    <dcat:distribution>
      <dcat:Distribution>
        <dcat:accessURL rdf:resource="https://doi.org/10.5281/zenodo.1254206"/>
        <dcat:byteSize>5232208</dcat:byteSize>
        <dcat:downloadURL rdf:resource="https://zenodo.org/record/1254206/files/Documentation_v1.pdf"/>
        <dcat:mediaType>application/pdf</dcat:mediaType>
      </dcat:Distribution>
    </dcat:distribution>
    <dcat:distribution>
      <dcat:Distribution>
        <dcat:accessURL rdf:resource="https://doi.org/10.5281/zenodo.1254206"/>
        <dcat:byteSize>1141</dcat:byteSize>
        <dcat:downloadURL rdf:resource="https://zenodo.org/record/1254206/files/example.m"/>
        <dcat:mediaType>application/vnd.wolfram.mathematica.package</dcat:mediaType>
      </dcat:Distribution>
    </dcat:distribution>
    <dcat:distribution>
      <dcat:Distribution>
        <dcat:accessURL rdf:resource="https://doi.org/10.5281/zenodo.1254206"/>
        <dcat:byteSize>3930465</dcat:byteSize>
        <dcat:downloadURL rdf:resource="https://zenodo.org/record/1254206/files/FullSizeSinograms.mat"/>
      </dcat:Distribution>
    </dcat:distribution>
    <dcat:distribution>
      <dcat:Distribution>
        <dcat:accessURL rdf:resource="https://doi.org/10.5281/zenodo.1254206"/>
        <dcat:byteSize>9671701</dcat:byteSize>
        <dcat:downloadURL rdf:resource="https://zenodo.org/record/1254206/files/GroundTruthReconstruction.mat"/>
      </dcat:Distribution>
    </dcat:distribution>
    <dcat:distribution>
      <dcat:Distribution>
        <dcat:accessURL rdf:resource="https://doi.org/10.5281/zenodo.1254206"/>
        <dcat:byteSize>349</dcat:byteSize>
        <dcat:downloadURL rdf:resource="https://zenodo.org/record/1254206/files/MD5SUMS"/>
      </dcat:Distribution>
    </dcat:distribution>
  </rdf:Description>
</rdf:RDF>
2,918
5,934
views
downloads
All versions This version
Views 2,9182,920
Downloads 5,9345,934
Data volume 175.7 GB175.6 GB
Unique views 2,5662,568
Unique downloads 2,4982,498
More info on how stats are collected.
Indexed in
Publication date:
February 11, 2015
DOI:
10.5281/zenodo.1254206

Zenodo DOI Badge

DOI 

10.5281/zenodo.1254206

Markdown 

[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1254206.svg)](https://doi.org/10.5281/zenodo.1254206)

reStructedText 

.. image:: https://zenodo.org/badge/DOI/10.5281/zenodo.1254206.svg
   :target: https://doi.org/10.5281/zenodo.1254206

HTML 

<a href="https://doi.org/10.5281/zenodo.1254206"><img src="https://zenodo.org/badge/DOI/10.5281/zenodo.1254206.svg" alt="DOI"></a>

Image URL 

https://zenodo.org/badge/DOI/10.5281/zenodo.1254206.svg

Target URL 

https://doi.org/10.5281/zenodo.1254206

Keyword(s):
X-ray Radon transform inverse problem
Related identifiers:
Documented by
Communities:
License (for files):
Creative Commons Attribution 4.0 International

Versions

Version 1.0.0 10.5281/zenodo.1254206 Feb 11, 2015
Cite all versions? You can cite all versions by using the DOI 10.5281/zenodo.1254205. This DOI represents all versions, and will always resolve to the latest one. Read more.

Share

Cite as

Export