<?xml version="1.0" encoding="utf-8"?>
<TEI xmlns="http://www.tei-c.org/ns/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:hal="http://hal.archives-ouvertes.fr/" xmlns:gml="http://www.opengis.net/gml/3.3/" xmlns:gmlce="http://www.opengis.net/gml/3.3/ce" version="1.1" xsi:schemaLocation="http://www.tei-c.org/ns/1.0 http://api.archives-ouvertes.fr/documents/aofr-sword.xsd">
  <teiHeader>
    <fileDesc>
      <titleStmt>
        <title>HAL TEI export of hal-04757077</title>
      </titleStmt>
      <publicationStmt>
        <distributor>CCSD</distributor>
        <availability status="restricted">
          <licence target="https://creativecommons.org/publicdomain/zero/1.0/">CC0 1.0 - Universal</licence>
        </availability>
        <date when="2026-05-16T18:51:41+02:00"/>
      </publicationStmt>
      <sourceDesc>
        <p part="N">HAL API Platform</p>
      </sourceDesc>
    </fileDesc>
  </teiHeader>
  <text>
    <body>
      <listBibl>
        <biblFull>
          <titleStmt>
            <title xml:lang="en">A robust segmentation and tracking method for characterizing GNSS signals reception environment</title>
            <author role="aut">
              <persName>
                <forename type="first">A.</forename>
                <surname>Cohen</surname>
              </persName>
              <idno type="halauthorid">227292-0</idno>
              <affiliation ref="#struct-7097"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">C.</forename>
                <surname>Meurie</surname>
              </persName>
              <email type="md5">4be5b87241fda82beffe8c57fc55b0e5</email>
              <email type="domain">univ-eiffel.fr</email>
              <idno type="idhal" notation="string">cyril-meurie</idno>
              <idno type="idhal" notation="numeric">1253790</idno>
              <idno type="halauthorid" notation="string">1627800-1253790</idno>
              <idno type="ORCID">https://orcid.org/0000-0001-9659-0639</idno>
              <idno type="RESEARCHERID">http://www.researcherid.com/rid/ABH-4820-2020</idno>
              <affiliation ref="#struct-7097"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Y.</forename>
                <surname>Ruichek</surname>
              </persName>
              <idno type="halauthorid">1626562-0</idno>
              <affiliation ref="#struct-7097"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">J.</forename>
                <surname>Marais</surname>
              </persName>
              <idno type="halauthorid">2096054-0</idno>
              <affiliation ref="#struct-86825"/>
            </author>
            <editor role="depositor">
              <persName>
                <forename>Cyril</forename>
                <surname>Meurie</surname>
              </persName>
              <email type="md5">4be5b87241fda82beffe8c57fc55b0e5</email>
              <email type="domain">univ-eiffel.fr</email>
            </editor>
          </titleStmt>
          <editionStmt>
            <edition n="v1" type="current">
              <date type="whenSubmitted">2024-10-28 16:39:04</date>
              <date type="whenModified">2024-12-04 03:40:39</date>
              <date type="whenReleased">2024-10-31 13:19:57</date>
              <date type="whenProduced">2011-01-23</date>
              <date type="whenEndEmbargoed">2024-10-28</date>
              <ref type="file" target="https://hal.science/hal-04757077v1/document">
                <date notBefore="2024-10-28"/>
              </ref>
              <ref type="file" subtype="author" n="1" target="https://hal.science/hal-04757077v1/file/SPIE2011_7877-3.pdf" id="file-4757077-4142054">
                <date notBefore="2024-10-28"/>
              </ref>
            </edition>
            <respStmt>
              <resp>contributor</resp>
              <name key="35124">
                <persName>
                  <forename>Cyril</forename>
                  <surname>Meurie</surname>
                </persName>
                <email type="md5">4be5b87241fda82beffe8c57fc55b0e5</email>
                <email type="domain">univ-eiffel.fr</email>
              </name>
            </respStmt>
          </editionStmt>
          <publicationStmt>
            <distributor>CCSD</distributor>
            <idno type="halId">hal-04757077</idno>
            <idno type="halUri">https://hal.science/hal-04757077</idno>
            <idno type="halBibtex">cohen:hal-04757077</idno>
            <idno type="halRefHtml">&lt;i&gt;IS&amp;T/SPIE Electronic Imaging&lt;/i&gt;, Jan 2011, San Francisco, United States. pp.787704, &lt;a target="_blank" href="https://dx.doi.org/10.1117/12.876674"&gt;&amp;#x27E8;10.1117/12.876674&amp;#x27E9;&lt;/a&gt;</idno>
            <idno type="halRef">IS&amp;T/SPIE Electronic Imaging, Jan 2011, San Francisco, United States. pp.787704, &amp;#x27E8;10.1117/12.876674&amp;#x27E9;</idno>
            <availability status="restricted">
              <licence target="https://about.hal.science/hal-authorisation-v1/">HAL Authorization<ref corresp="#file-4757077-4142054"/></licence>
            </availability>
          </publicationStmt>
          <seriesStmt>
            <idno type="stamp" n="UNIV-BM">Université de Technologie de Belfort-Montbeliard</idno>
            <idno type="stamp" n="UNIV-BM-THESE">Université de Technologie de Belfort-Montbeliard</idno>
            <idno type="stamp" n="IFSTTAR">Ifsttar</idno>
            <idno type="stamp" n="UNIV-EIFFEL">Université Gustave Eiffel</idno>
            <idno type="stamp" n="IFSTTAR-UNIVEIFFEL">Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux</idno>
          </seriesStmt>
          <notesStmt>
            <note type="audience" n="2">International</note>
            <note type="invited" n="0">No</note>
            <note type="popular" n="0">No</note>
            <note type="peer" n="1">Yes</note>
            <note type="proceedings" n="1">Yes</note>
          </notesStmt>
          <sourceDesc>
            <biblStruct>
              <analytic>
                <title xml:lang="en">A robust segmentation and tracking method for characterizing GNSS signals reception environment</title>
                <author role="aut">
                  <persName>
                    <forename type="first">A.</forename>
                    <surname>Cohen</surname>
                  </persName>
                  <idno type="halauthorid">227292-0</idno>
                  <affiliation ref="#struct-7097"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">C.</forename>
                    <surname>Meurie</surname>
                  </persName>
                  <email type="md5">4be5b87241fda82beffe8c57fc55b0e5</email>
                  <email type="domain">univ-eiffel.fr</email>
                  <idno type="idhal" notation="string">cyril-meurie</idno>
                  <idno type="idhal" notation="numeric">1253790</idno>
                  <idno type="halauthorid" notation="string">1627800-1253790</idno>
                  <idno type="ORCID">https://orcid.org/0000-0001-9659-0639</idno>
                  <idno type="RESEARCHERID">http://www.researcherid.com/rid/ABH-4820-2020</idno>
                  <affiliation ref="#struct-7097"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Y.</forename>
                    <surname>Ruichek</surname>
                  </persName>
                  <idno type="halauthorid">1626562-0</idno>
                  <affiliation ref="#struct-7097"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">J.</forename>
                    <surname>Marais</surname>
                  </persName>
                  <idno type="halauthorid">2096054-0</idno>
                  <affiliation ref="#struct-86825"/>
                </author>
              </analytic>
              <monogr>
                <meeting>
                  <title>IS&amp;T/SPIE Electronic Imaging</title>
                  <date type="start">2011-01-23</date>
                  <date type="end">2011-01-27</date>
                  <settlement>San Francisco</settlement>
                  <country key="US">United States</country>
                </meeting>
                <imprint>
                  <publisher>Society of Photo-Optical Instrumentation Engineers (SPIE)</publisher>
                  <biblScope unit="serie">Image Processing: Machine Vision Applications IV</biblScope>
                  <biblScope unit="volume">7877</biblScope>
                  <biblScope unit="pp">787704</biblScope>
                </imprint>
              </monogr>
              <series>
                <editor>David Fofi and Philip R. Bingham</editor>
              </series>
              <idno type="doi">10.1117/12.876674</idno>
            </biblStruct>
          </sourceDesc>
          <profileDesc>
            <langUsage>
              <language ident="en">English</language>
            </langUsage>
            <textClass>
              <keywords scheme="author">
                <term xml:lang="en">image segmentation adaptive combination color texture rectification tracking</term>
                <term xml:lang="en">tracking</term>
                <term xml:lang="en">rectification</term>
                <term xml:lang="en">texture</term>
                <term xml:lang="en">color</term>
                <term xml:lang="en">adaptive combination</term>
                <term xml:lang="en">image segmentation</term>
              </keywords>
              <classCode scheme="halDomain" n="info.info-ts">Computer Science [cs]/Signal and Image Processing</classCode>
              <classCode scheme="halTypology" n="COMM">Conference papers</classCode>
              <classCode scheme="halOldTypology" n="COMM">Conference papers</classCode>
              <classCode scheme="halTreeTypology" n="COMM">Conference papers</classCode>
            </textClass>
            <abstract xml:lang="en">
              <p>This paper is focused on the characterization of GNSS signals reception environment by estimation of thepercentage of visible sky in real-time. On previous works (1, 2), a new segmentation technique based on a colorwatershed using an adaptive combination of color and texture information was proposed. This information wasrepresented by two morphological gradients, a classical color gradient and a morphological texture gradient basedon mathematical morphology or co-occurrence matrices. The segmented images were then classified into tworegions: sky and not-sky. However, this approach has high computational cost and thus, cannot be applied inreal-time. On this paper, we present this adaptive segmentation method with a texture gradient calculated bythe Gabor filter and a region-tracking method based on a block-matching estimation. This last step reducesthe execution time of the application in order to respect the real-time conditions. Since the application worksfor fish-eye images, a calibration and rectification method is required before tracking and is also presented onthis paper. The calibration method presented is based on the straight line condition and thus does not use realword coordinates. This prevents measurement errors. The tracking results are compared to the results of theclassification method (which has already been evaluated on previous works). The evaluation shows that theproposed method has a very low error and decreases the execution time by ten times.</p>
            </abstract>
          </profileDesc>
        </biblFull>
      </listBibl>
    </body>
    <back>
      <listOrg type="structures">
        <org type="laboratory" xml:id="struct-7097" status="INCOMING">
          <orgName>SeT, UTBM</orgName>
          <orgName type="acronym">SET, UTBM</orgName>
          <desc>
            <address>
              <addrLine>90010 Belfort Cedex</addrLine>
              <country key="FR"/>
            </address>
          </desc>
          <listRelation>
            <relation active="#struct-300261" type="direct"/>
          </listRelation>
        </org>
        <org type="laboratory" xml:id="struct-86825" status="OLD">
          <orgName>Laboratoire Electronique, Ondes et Signaux pour les Transports</orgName>
          <orgName type="acronym">INRETS/LEOST</orgName>
          <desc>
            <address>
              <addrLine>20 rue Elisée Reclus, F-59666 Villeneuve d'Ascq cedex</addrLine>
              <country key="FR"/>
            </address>
          </desc>
          <listRelation>
            <relation active="#struct-300008" type="direct"/>
          </listRelation>
        </org>
        <org type="institution" xml:id="struct-300261" status="VALID">
          <orgName>Université de Technologie de Belfort-Montbeliard</orgName>
          <orgName type="acronym">UTBM</orgName>
          <desc>
            <address>
              <country key="FR"/>
            </address>
          </desc>
        </org>
        <org type="institution" xml:id="struct-300008" status="OLD">
          <orgName>Institut National de Recherche sur les Transports et leur Sécurité</orgName>
          <orgName type="acronym">INRETS</orgName>
          <desc>
            <address>
              <addrLine>25, Avenue François Mitterrand - Case 24 F-69675 BRON CEDEX</addrLine>
              <country key="FR"/>
            </address>
          </desc>
        </org>
      </listOrg>
    </back>
  </text>
</TEI>