<div dir="ltr"><br clear="all"><div><p style="font-family:arial,sans-serif;font-size:13px;margin-bottom:12pt"><span lang="EN-US" style="color:rgb(26,26,26)"><font face="arial, helvetica, sans-serif">Título: </font></span>Boundary Detectors on Polarimetric SAR data</p>
<p style="font-family:arial,sans-serif;font-size:13px;margin-bottom:12pt"><span lang="EN-US" style="color:rgb(26,26,26)"><font face="arial, helvetica, sans-serif">Palestrante: Prof. Dr. Abraão David Costa do Nascimento - </font><font face="arial, helvetica, sans-serif"> UFPE</font></span></p>
<p style="font-family:arial,sans-serif;font-size:13px;margin-bottom:12pt"><span lang="EN-US" style="color:rgb(26,26,26)"><font face="arial, helvetica, sans-serif">Data: 27 de agosto de 2014 (quarta-feira)
Horário: 16:00 horas
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<p style="font-family:arial,sans-serif;font-size:13px;margin-bottom:12pt"><span lang="EN-US" style="color:rgb(26,26,26)"><font face="arial, helvetica, sans-serif">Local: Auditório Ruy Gomes - Departamento de Estatística da UFPE, Segundo andar do CCEN
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<p style="font-family:arial,sans-serif;font-size:13px;margin-bottom:12pt"><span lang="EN-US" style="color:rgb(26,26,26)"><font face="arial, helvetica, sans-serif">Resumo
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Polarimetric synthetic aperture radar (PolSAR) <span style="font-size:12.666666984558105px"> has achieved a prominent position </span><span style="font-size:12.666666984558105px"> as a remote imaging tool. </span><span style="font-size:12.666666984558105px">However, </span><span style="font-size:12.666666984558105px"> PolSAR images are contaminated by speckle noise </span><span style="font-size:12.666666984558105px">from the coherent illumination process </span><span style="font-size:12.666666984558105px">employed during the data acquisition. </span><span style="font-size:12.666666984558105px"> This noise provides a granular aspect to the image,</span><span style="font-size:12.666666984558105px"> making its processing and analysis (such as in edge detection) hard tasks. </span><span style="font-size:12.666666984558105px">This seminar presents seven methods for edge detection in multilook </span><span style="font-size:12.666666984558105px">PolSAR images.</span><span style="font-size:12.666666984558105px">Four stochastic distances, </span><span style="font-size:12.666666984558105px">two differences of entropies, </span><span style="font-size:12.666666984558105px">and the maximum likelihood criterion </span><span style="font-size:12.666666984558105px">were used under the scaled complex Wishart distribution.</span><span style="font-size:12.666666984558105px"> The performance of the discussed detection methods </span><span style="font-size:12.666666984558105px">was quantified and analyzed by means of a Monte Carlo simulation study. </span><span style="font-size:12.666666984558105px"> Additionally, </span><span style="font-size:12.666666984558105px"> the detection procedures were applied to PolSAR images. </span><span style="font-size:12.666666984558105px">Results provide evidence that the methods </span><span style="font-size:12.666666984558105px">based on Information Theory measures </span><span style="font-size:12.666666984558105px">outperform the other techniques.</span></div>
</div><p style="font-family:arial,sans-serif;font-size:13px;text-align:justify"><span style="font-family:arial;font-size:small">-- </span><br></p></div><div dir="ltr">Francisco José A. Cysneiros<div>Associate professor </div>
<div><span style="background-color:rgb(238,238,238);font-family:'Lucida Grande','Lucida Sans Unicode','Lucida Sans',Geneva,Arial,Helvetica,Tahoma,sans-serif;font-size:13px">Head of the Graduate Program in Statistics</span></div>
<div><span style="background-color:rgb(238,238,238);font-family:'Lucida Grande','Lucida Sans Unicode','Lucida Sans',Geneva,Arial,Helvetica,Tahoma,sans-serif;font-size:13px">Departament of Statistics - </span><span style="background-color:rgb(238,238,238);font-family:'Lucida Grande','Lucida Sans Unicode','Lucida Sans',Geneva,Arial,Helvetica,Tahoma,sans-serif">UFPE</span></div>
<div><font face="Lucida Grande, Lucida Sans Unicode, Lucida Sans, Geneva, Arial, Helvetica, Tahoma, sans-serif"><a href="http://www.de.ufpe.br/~cysneiros" target="_blank">www.de.ufpe.br/~cysneiros</a></font></div><div><b style="color:rgb(0,0,0);font-family:'Times New Roman',serif;font-size:medium;text-align:center"><span lang="EN-US"><a href="http://lattes.cnpq.br/1313497098151734" style="color:purple" target="_blank">http:/lattes.cnpq.br/1313497098151734</a></span></b></div>
<div><b style="color:rgb(0,0,0);font-family:'Times New Roman',serif;font-size:medium;text-align:center"><span lang="EN-US"><a href="http://www.researcherid.com/rid/G-6333-2012" style="color:purple" target="_blank"><span style="color:purple"><span><span lang="PT-BR">ResearchedId</span></span></span><span lang="PT-BR" style="color:purple"> G-633-2012</span></a></span></b></div>
<div><b style="color:rgb(0,0,0);font-family:'Times New Roman',serif;font-size:medium;text-align:center"><span lang="EN-US"><a href="http://orcid.org/0000-0001-6757-6969" style="color:purple" target="_blank"><span lang="PT-BR">ORCID</span></a></span></b></div>
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