<?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>1405-5546</journal-id>
<journal-title><![CDATA[Computación y Sistemas]]></journal-title>
<abbrev-journal-title><![CDATA[Comp. y Sist.]]></abbrev-journal-title>
<issn>1405-5546</issn>
<publisher>
<publisher-name><![CDATA[Instituto Politécnico Nacional, Centro de Investigación en Computación]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-55462008000300002</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Sampling-Based Motion Planning: A Survey]]></article-title>
<article-title xml:lang="es"><![CDATA[Planificación de Movimientos Basada en Muestreo: Un Compendio]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez López]]></surname>
<given-names><![CDATA[Abraham]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zapata]]></surname>
<given-names><![CDATA[René]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Osorio Lama]]></surname>
<given-names><![CDATA[Maria A.]]></given-names>
</name>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,CNRS  ]]></institution>
<addr-line><![CDATA[Montpellier ]]></addr-line>
<country>France</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2008</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2008</year>
</pub-date>
<volume>12</volume>
<numero>1</numero>
<fpage>05</fpage>
<lpage>24</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-55462008000300002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-55462008000300002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-55462008000300002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Sampling-based motion approaches, like Probabilistic Roadmap Methods or those based on Rapidly-exploring Random Trees are giving good results in robot motion planning problems with many degrees of freedom. Following these approaches, several strategies have been proposed for biasing the sampling towards the most promising regions, thus improving the efficiency and allowing to cope with difficult motion planning problems. The success of these planners in solving challenging problems can be explained by the fact that no explicit representation of the free configuration space is required. This paper reviews some of the most influential proposals and ideas, providing indications on their practical and theoretical implications. The contributions made by Mexican researchers in this field are also presented.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Los enfoques de planificación de movimientos basados en muestreo, como los métodos de Roadmap Probabilista o aquellos basados en los Árboles Aleatorios de Exploración Rápida están dando buenos resultados en la planificación de movimientos de robots con muchos grados de libertad. Con estos enfoques, se han propuesto varias estrategias para predisponer el muestreo hacia las regiones más prometedoras, mejorando con esto la eficiencia y permitiendo la solución de problemas difíciles de planificación de movimientos. El éxito de estos planificadores en la solución de problemas desafiantes se puede explicar por el hecho de que no se requiere ninguna representación explícita del espacio de configuraciones libre. Este artículo repasa algunas de las propuestas e ideas más influyentes en el área, proporcionando indicaciones de sus implicaciones teóricas y prácticas. También se presentan las contribuciones realizadas por los investigadores Mexicanos en este campo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Motion planning]]></kwd>
<kwd lng="en"><![CDATA[probabilistic roadmaps]]></kwd>
<kwd lng="en"><![CDATA[sampling-based motion planning]]></kwd>
<kwd lng="en"><![CDATA[path planning]]></kwd>
<kwd lng="en"><![CDATA[algorithms]]></kwd>
<kwd lng="es"><![CDATA[Planificación de movimientos]]></kwd>
<kwd lng="es"><![CDATA[roadmaps probabilistas]]></kwd>
<kwd lng="es"><![CDATA[planificación de movimientos basada en muestreo]]></kwd>
<kwd lng="es"><![CDATA[planificación de trayectorias]]></kwd>
<kwd lng="es"><![CDATA[algoritmos]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="center"><font face="verdana" size="4"><b>Sampling&#150;Based Motion Planning: A Survey</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="3"><b><i>Planificaci&oacute;n de Movimientos Basada en Muestreo: Un Compendio</i></b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>Abraham S&aacute;nchez L&oacute;pez, Ren&eacute; Zapata* and Maria A. Osorio Lama</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>Computer Science Department, Autonomous University of Puebla 14 Sur and San Claudio, CP 72570, Puebla, Pue. M&eacute;xico</i> </font></p>     <p align="justify"><font face="verdana" size="2"><i>* LIRMM &#150; UMR55606 CNRS, 161, rue Ada 34392 Montpellier Cedex 5, France</i></font></p>     <p align="justify"><font face="verdana" size="2"><i> <a href="mailto:asanchez@cs.buap.mx">asanchez@cs.buap.mx</a>, <a href="mailto:asorio@cs.buap.mx">asorio@cs.buap.mx</a>, <a href="mailto:zapata@lirmm.fr">zapata@lirmm.fr</a></i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Article received on April 13, 2008;     <br>   Accepted on June 20, 2008</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">Sampling&#150;based motion approaches, like Probabilistic Roadmap Methods or those based on Rapidly&#150;exploring Random Trees are giving good results in robot motion planning problems with many degrees of freedom. Following these approaches, several strategies have been proposed for biasing the sampling towards the most promising regions, thus improving the efficiency and allowing to cope with difficult motion planning problems.</font></p>     <p align="justify"><font face="verdana" size="2">The success of these planners in solving challenging problems can be explained by the fact that no explicit representation of the free configuration space is required. This paper reviews some of the most influential proposals and ideas, providing indications on their practical and theoretical implications. The contributions made by Mexican researchers in this field are also presented. </font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Motion planning, probabilistic roadmaps, sampling&#150;based motion planning, path planning, algorithms.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">Los enfoques de planificaci&oacute;n de movimientos basados en muestreo, como los m&eacute;todos de Roadmap Probabilista o aquellos basados en los &Aacute;rboles Aleatorios de Exploraci&oacute;n R&aacute;pida est&aacute;n dando buenos resultados en la planificaci&oacute;n de movimientos de robots con muchos grados de libertad. Con estos enfoques, se han propuesto varias estrategias para predisponer el muestreo hacia las regiones m&aacute;s prometedoras, mejorando con esto la eficiencia y permitiendo la soluci&oacute;n de problemas dif&iacute;ciles de planificaci&oacute;n de movimientos. El &eacute;xito de estos planificadores en la soluci&oacute;n de problemas desafiantes se puede explicar por el hecho de que no se requiere ninguna representaci&oacute;n expl&iacute;cita del espacio de configuraciones libre.</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Este art&iacute;culo repasa algunas de las propuestas e ideas m&aacute;s influyentes en el &aacute;rea, proporcionando indicaciones de sus implicaciones te&oacute;ricas y pr&aacute;cticas. Tambi&eacute;n se presentan las contribuciones realizadas por los investigadores Mexicanos en este campo.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Palabras claves: </b>Planificaci&oacute;n de movimientos, roadmaps probabilistas, planificaci&oacute;n de movimientos basada en muestreo, planificaci&oacute;n de trayectorias, algoritmos.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/cys/v12n1/v12n1a2.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. <b>Amato N. M., O. Bayazit, L. K. Dale, C. Jones </b>and <b>D. Vallejo,  </b>"OBPRM: An obstacle&#150;based PRM for 3D workspaces". <i>Proc. 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