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	<title>Publications:Iris Pupil Detection by Structure Tensor Analysis - Revision history</title>
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	<updated>2026-04-04T21:35:07Z</updated>
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		<id>https://mw.hh.se/caisr/index.php?title=Publications:Iris_Pupil_Detection_by_Structure_Tensor_Analysis&amp;diff=2998&amp;oldid=prev</id>
		<title>Slawek at 20:40, 30 September 2016</title>
		<link rel="alternate" type="text/html" href="https://mw.hh.se/caisr/index.php?title=Publications:Iris_Pupil_Detection_by_Structure_Tensor_Analysis&amp;diff=2998&amp;oldid=prev"/>
		<updated>2016-09-30T20:40:38Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 20:40, 30 September 2016&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l4&quot; &gt;Line 4:&lt;/td&gt;
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&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|Name=Alonso-Fernandez, Fernando &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[&lt;/del&gt;feralo&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;] &lt;/del&gt;(Högskolan i Halmstad &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[&lt;/del&gt;2804&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE) &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[&lt;/del&gt;3905&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;, Halmstad Embedded and Intelligent Systems Research (EIS) &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[&lt;/del&gt;3938&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;);Bigun, Josef &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[&lt;/del&gt;josef&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;] &lt;/del&gt;(Högskolan i Halmstad &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[&lt;/del&gt;2804&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE) &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[&lt;/del&gt;3905&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;, Halmstad Embedded and Intelligent Systems Research (EIS) &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[&lt;/del&gt;3938&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;)&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|Name=Alonso-Fernandez, Fernando &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(&lt;/ins&gt;feralo&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;) (0000-0002-1400-346X) &lt;/ins&gt;(Högskolan i Halmstad &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(&lt;/ins&gt;2804&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;)&lt;/ins&gt;, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE) &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(&lt;/ins&gt;3905&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;)&lt;/ins&gt;, Halmstad Embedded and Intelligent Systems Research (EIS) &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(&lt;/ins&gt;3938&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;)&lt;/ins&gt;);Bigun, Josef &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(&lt;/ins&gt;josef&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;) &lt;/ins&gt;(Högskolan i Halmstad &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(&lt;/ins&gt;2804&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;)&lt;/ins&gt;, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE) &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(&lt;/ins&gt;3905&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;)&lt;/ins&gt;, Halmstad Embedded and Intelligent Systems Research (EIS) &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(&lt;/ins&gt;3938&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;)&lt;/ins&gt;)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|Title=Iris Pupil Detection by Structure Tensor Analysis&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|Title=Iris Pupil Detection by Structure Tensor Analysis&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PublicationType=Conference Paper&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PublicationType=Conference Paper&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l55&quot; &gt;Line 55:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 55:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|CreatedDate=2011-04-04&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|CreatedDate=2011-04-04&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|LastUpdated=&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;2013&lt;/del&gt;-&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;05&lt;/del&gt;-&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;17&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|LastUpdated=&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;2015&lt;/ins&gt;-&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;09&lt;/ins&gt;-&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;29&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|diva=http://hh.diva-portal.org/smash/record.jsf?searchId=1&amp;amp;pid=diva2:408372}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|diva=http://hh.diva-portal.org/smash/record.jsf?searchId=1&amp;amp;pid=diva2:408372}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;/table&gt;</summary>
		<author><name>Slawek</name></author>
	</entry>
	<entry>
		<id>https://mw.hh.se/caisr/index.php?title=Publications:Iris_Pupil_Detection_by_Structure_Tensor_Analysis&amp;diff=1205&amp;oldid=prev</id>
		<title>SlawekBot: Created page with &quot;&lt;div style=&#039;display: none&#039;&gt; == Do not edit this section == &lt;/div&gt; {{PublicationSetupTemplate|Author=Fernando Alonso-Fernandez, Josef Bigun |PID=408372 |Name=Alonso-Fernandez, ...&quot;</title>
		<link rel="alternate" type="text/html" href="https://mw.hh.se/caisr/index.php?title=Publications:Iris_Pupil_Detection_by_Structure_Tensor_Analysis&amp;diff=1205&amp;oldid=prev"/>
		<updated>2014-03-13T11:50:04Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;&amp;lt;div style=&amp;#039;display: none&amp;#039;&amp;gt; == Do not edit this section == &amp;lt;/div&amp;gt; {{PublicationSetupTemplate|Author=Fernando Alonso-Fernandez, Josef Bigun |PID=408372 |Name=Alonso-Fernandez, ...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;lt;div style=&amp;#039;display: none&amp;#039;&amp;gt;&lt;br /&gt;
== Do not edit this section ==&lt;br /&gt;
&amp;lt;/div&amp;gt;&lt;br /&gt;
{{PublicationSetupTemplate|Author=Fernando Alonso-Fernandez, Josef Bigun&lt;br /&gt;
|PID=408372&lt;br /&gt;
|Name=Alonso-Fernandez, Fernando [feralo] (Högskolan i Halmstad [2804], Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE) [3905], Halmstad Embedded and Intelligent Systems Research (EIS) [3938]);Bigun, Josef [josef] (Högskolan i Halmstad [2804], Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE) [3905], Halmstad Embedded and Intelligent Systems Research (EIS) [3938])&lt;br /&gt;
|Title=Iris Pupil Detection by Structure Tensor Analysis&lt;br /&gt;
|PublicationType=Conference Paper&lt;br /&gt;
|ContentType=Övrigt vetenskapligt&lt;br /&gt;
|Language=eng&lt;br /&gt;
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|Conference=SSBA Symposium 2011 (SSBA2011), 17-18 mars, Linköping, Sweden&lt;br /&gt;
|StartPage=1&lt;br /&gt;
|EndPage=4&lt;br /&gt;
|Year=2011&lt;br /&gt;
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|Pages=&lt;br /&gt;
|City=Halmstad&lt;br /&gt;
|Publisher=Halmstad University&lt;br /&gt;
|Series=&lt;br /&gt;
|SeriesISSN=&lt;br /&gt;
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|Urls=http://www2.hh.se/staff/josef/public/publications/fernandez11linkoping.pdf&lt;br /&gt;
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|NBN=urn:nbn:se:hh:diva-14946&lt;br /&gt;
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|Categories=Teknik och teknologier (2)&lt;br /&gt;
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|Notes=&lt;br /&gt;
|Abstract=&amp;lt;p&amp;gt;This paper present a pupil detection/segmentation algorithm for iris images based on Structure Tensor analysis. Eigenvalues of the structure tensor matrix have been observed to be high in pupil boundaries and specular reflections of iris images. We exploit this fact to detect the specular reflections region and the boundary of the pupil in a sequential manner. Experimental results are given using the CASIA-IrisV3-Interval database (249 contributors, 396 different eyes, 2,639 iris images). Results show that our algorithm works specially well in detecting the specular reflections (98.98% success rate) and pupil boundary detection is correctly done in 84.24% of the images.&amp;lt;/p&amp;gt;&lt;br /&gt;
|Opponents=&lt;br /&gt;
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|CreatedDate=2011-04-04&lt;br /&gt;
|PublicationDate=2011-04-04&lt;br /&gt;
|LastUpdated=2013-05-17&lt;br /&gt;
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