<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2227-1899</journal-id>
<journal-title><![CDATA[Revista Cubana de Ciencias Informáticas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev cuba cienc informat]]></abbrev-journal-title>
<issn>2227-1899</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ediciones Futuro]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2227-18992020000400085</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Algoritmos de Fusión de Imágenes de Contraste de Fase y su Mapa de Perturbaciones de Fase]]></article-title>
<article-title xml:lang="en"><![CDATA[Image fusion algorithm for phase-contrast and phase retrieval images]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz Gonzalez]]></surname>
<given-names><![CDATA[Yusely]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Perez Diaz]]></surname>
<given-names><![CDATA[Marlen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arencibia Guerrero]]></surname>
<given-names><![CDATA[Yoandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Central "Marta Abreu" de Las Villas Centro de Investigaciones de la Informática ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Central "Marta Abreu" de Las Villas Facultad de Ingeniería Eléctrica Departamento de Automática y Sistemas Computacionales]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Celestino Hernández Robau Departamento de Radiología ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>14</volume>
<numero>4</numero>
<fpage>85</fpage>
<lpage>101</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2227-18992020000400085&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2227-18992020000400085&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2227-18992020000400085&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En la puesta punto de un tomógrafo de mamas usando haces de sincrotrón se obtuvieron imágenes de contraste de fase (PBI) y de su mapa de cambios de fase (PRI). Dichas imágenes se desean fusionar en una sola imagen que conserve las ventajas de cada modalidad. Se programaron algoritmos de fusión de imágenes y se comparó su desempeño. En los experimentos se utilizaron imágenes de un maniquí físico en modalidad PBI y PRI, adquiridas en las instalaciones SYRMEP, Trieste-Italia. Se seleccionaron regiones de interés y se calcularon indicadores de calidad de imagen como son: relación señal ruido, contraste y visibilidad de los bordes, para comparar el desempeño de los algoritmos. De los tres métodos de fusión programados el de mejores resultados fue el M3, pues establece el mejor compromiso en la mejoría en los índices de calidad utilizados En la imagen fusionada se reduce el nivel de ruido con respecto al imagen PBI, se aumenta el contraste y se evita el efecto de emborronamiento de los bordes de la imagen PRI, pues se mejora la visibilidad de estos. Esto permite observar mayor cantidad de detalles que en las imágenes PBI y PRI por separado. Lo anterior tiene importancia tanto desde el punto de vista de diagnóstico como de ahorro de tiempo de trabajo para los especialistas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT During the set-up of phase-contrast breast CT with synchrotron radiation, propagation-based imaging (PBI) and phase-retrieval imaging (PRI) methods were used to obtained medical images. It is desirable to merge both image modalities keeping the advantages of each one. Image fusion algorithms were programmed and their performance was compared. The experiments used PBI and PRI images from a physic phantom, acquired at SYRMEP facilities, Trieste-Italy. Regions of interest were selected and image quality indexes were estimated such as: noise signal ratio, contrast and visibility of the edges, to compare the performance of the algorithms. Of the three programmed fusion methods, the one with the best results was the M3, since it established the best compromise in the improvement on the quality indices used. In the merged image the noise level was reduced with respect to the PBI image, the contrast was increased and the edge blurring effect of the PRI image was avoided due to visibility index improvements. This result allowed to observe a greater amount of detail in the merged image than in the PBI and PRI images separately. It is important from the point of view of the diagnosis and also save working time for specialists.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Contraste de Fase]]></kwd>
<kwd lng="es"><![CDATA[Recuperación de la Fase]]></kwd>
<kwd lng="es"><![CDATA[Fusión de Imágenes]]></kwd>
<kwd lng="en"><![CDATA[Phase Contrast]]></kwd>
<kwd lng="en"><![CDATA[Phase Retrieval]]></kwd>
<kwd lng="en"><![CDATA[Image Fusion]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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