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<article article-type="research-article">
  <front>
    <journal-meta>
      <journal-id journal-id-type="aggregator">72010604</journal-id>
      <journal-title>Electronic Imaging</journal-title>
      <issn pub-type="ppub">2470-1173</issn><issn pub-type="epub"></issn>
      <publisher>
        <publisher-name>Society for Imaging Science and Technology</publisher-name>
        <publisher-loc>7003 Kilworth Lane, Springfield, VA 22151 USA</publisher-loc>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.2352/ISSN.2470-1173.2016.11.IMAWM-470</article-id>
      <article-id pub-id-type="sici">2470-1173(20160214)2016:11L.1;1-</article-id>
      <article-id pub-id-type="publisher-id">ei_24701173_v2016n11_input/s13.xml</article-id>
      <article-id pub-id-type="other">/ist/ei/2016/00002016/00000011/art00005</article-id>
      <article-categories>
        <subj-group>
          <subject>Articles</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Two-step Learning of Deep Convolutional Neural Network for Discriminative Face Recognition under Varying Illumination</article-title>
      </title-group>
      <contrib-group>
        <contrib>
          <name>
            <surname>Choi</surname>
            <given-names>Yeoreum</given-names>
          </name>
        </contrib>
        <contrib>
          <name>
            <surname>Kim</surname>
            <given-names>Hyung-II</given-names>
          </name>
        </contrib>
        <contrib>
          <name>
            <surname>Ro</surname>
            <given-names>Yong Man</given-names>
          </name>
        </contrib>
      </contrib-group>
      <pub-date>
        <day>14</day>
        <month>02</month>
        <year>2016</year>
      </pub-date>
      <volume>2016</volume>
      <issue>11</issue>
      <fpage>1</fpage>
      <lpage>5</lpage>
      <permissions>
        <copyright-year>2016</copyright-year>
      </permissions>
      <abstract>
        <p>
          <italic>In real-world face recognition (FR) scenario, illumination variation has been known to be a challenging problem because face appearance dramatically changes depending on the illumination conditions. In order to deal with this illumination variation effectively, an illumination-reduced
 feature learning method using deep convolutional neural network (DCNN) is proposed in this paper. It is motivated by the capability of deep learning that represents highly complicated nonlinear structures. Our learning method is mainly comprised of following two-steps: 1) learning illumination
 patterns for eliminating illumination effect and 2) learning for maximizing discriminative power of feature representation. Experimental results on CMU Multi-PIE database have demonstrated that the proposed method outperforms the previous works in terms of FR accuracy.</italic>
        </p>
      </abstract>
    </article-meta>
  </front>
</article>
