http://publicationslist.org/data/alexandre.dufour/atom.xmlAlexandre Dufour's Publications List Alexandre Dufourhttp://publicationslist.org/alexandre.dufour$basepathfavicon.icoRecent additions to Alexandre Dufour's PublicationsList.org pagehttp://publicationslist.org/publications.png2008-10-13T14:46:52Z http://publicationslist.org/alexandre.dufour/refid1 2008-10-13T14:10:40Z Automated nuclear analysis of Leishmania major telomeric clusters reveals changes in their organization during the parasite's life cycle. Parasite virulence genes are usually associated with telomeres. The clustering of the telomeres, together with their particular spatial distribution in the nucleus of human parasites such as Plasmodium falciparum and Trypanosoma brucei, has been suggested to play a role in facilitating ectopic recombination and in the emergence of new antigenic variants. Leishmania parasites, as well as other tryp...<br/><br/>Fernando de M Dossin, Alexandre Dufour, Elodie Dusch, Jair L Siqueira-Neto, Carolina B Moraes, Gyong Seon Yang, Maria Isabel Cano, Auguste Genovesio, Lucio H Freitas-Junior (2008) <i>PLoS ONE</i> 3: 6 <br/> http://publicationslist.org/alexandre.dufour/refid7 2008-10-13T14:42:13Z Tracking live cells in 4D microscopy: Active Surfaces vs. Active Meshes Active contour methods have proven to be particularly adapted to multiple cell segmentation and tracking in biology, thanks to their flexibility, robustness to noise and quantitative interpretability. In the context of 4D microscopy, two concurrent techniques have been developped: active surfaces, based on an implicit contour formulation, and recently active meshes, based on an explicit formulatio...<br/><br/>Alexandre Dufour, Jean-Christophe Olivo-Marin (2008) <i>Asilomar Conference on Signals, Systems & Computers</i> <br/> http://publicationslist.org/alexandre.dufour/refid6 2008-10-13T14:40:18Z Automated quantification of cell endocytosis using active contours and wavelets Cellular endocytosis is a mechanism of great interest in biology, for it regulates the communication between the cell and the external medium. With recent advances in fluorescence microscopy, endocytosis has become a popular candidate for image-based high content screening campains. In this context, we have developped an automated framework comprising robust cell segmentation using coupled shape-c...<br/><br/>Alexandre Dufour, Vannary Meas-Yedid, Jean-Christophe Olivo-Marin (2008) <i>International Conference on Pattern Recognition</i> <br/> http://publicationslist.org/alexandre.dufour/refid5 2008-10-13T14:35:31Z 3D automated nuclear morphometric analysis using Active Meshes Segmenting and tracking multiple deformable objects is a topic of popular interest in 3D biological imaging. In addition to quantitative measurements, a great importance lies in the visual observation of the results, usually available via time-consuming reconstruction methods, which introduce approximation errors. In this paper, we propose a framework based on deformable mesh models able to segmen...<br/><br/>Alexandre Dufour, JooHyun Lee, Nicole Vincent, Regis Grailhe, Auguste Genovesio (2007) <i>2nd International Workshop on Pattern Recognition in Bioinformatics</i> 356-367<br/> http://publicationslist.org/alexandre.dufour/refid4 2008-10-13T14:44:32Z Segmentation, suivi et visualisation d’objets biologiques en microscopie 3D par fluorescence: approches par modèles déformables Alexandre Dufour (2007) <br/> http://publicationslist.org/alexandre.dufour/refid10 2008-10-13T14:36:18Z On the digital trail of mobile cells Cell migration is a field of intense current research, where biologists increasingly rely on methods and expertise from physics and engineering. Signal processing approaches can contribute significantly to this research, most notably to help analyze the exploding quantity of imaging data produced with standard and new microscopy techniques. In this article, we first provide a brief background on t...<br/><br/>Christophe Zimmer, Bo Zhang, Alexandre Dufour, Aymeric Thebaud, Sylvain Berlemont, Vannary Meas-Yedid, Jean-Christophe Olivo-Marin (2006) <i>Signal Processing Magazine</i> 23: 3 54-62<br/> http://publicationslist.org/alexandre.dufour/refid9 2008-10-13T14:43:07Z 3D Mumford-Shah based active mesh Deformable mesh methods have become an alternative of choice to classical deformable models for 3D image understanding. They allow to render the evolving surface directly during the segmentation process in a fast and efficient way, avoiding both the additional timecost and approximation errors induced by 3D reconstruction algorithms after segmentation. Current methods utilize edge-based forces to ...<br/><br/>Alexandre Dufour, Nicole Vincent, Auguste Genovesio (2006) <i>Progress in Pattern Recognition, Image Analysis and Applications</i> 208-217<br/> http://publicationslist.org/alexandre.dufour/refid2 2008-10-13T14:32:16Z Segmenting and tracking fluorescent cells in dynamic 3-D microscopy with coupled active surfaces Cell migrations and deformations play essential roles in biological processes, such as parasite invasion, immune response, embryonic development, and cancer. We describe a fully automatic segmentation and tracking method designed to enable quantitative analyses of cellular shape and motion from dynamic three-dimensional microscopy data. The method uses multiple active surfaces with or without edge...<br/><br/>Alexandre Dufour, Vasily Shinin, Shahragim Tajbakhsh, Nancy Guillén-Aghion, Jean-Christophe Olivo-Marin, Christophe Zimmer (2005) <i>IEEE Transations on Image Processing</i> 14: 9 1396-1410<br/>