El propósito de este seminario es dar una introducción a la representación de imágenes basada en conjunto de niveles y las principales técnicas de procesado de imágenes adaptadas a esta representación. Los conjuntos de nivel enfatizan el carácter geométrico de las imágenes y el procesado se basa en herramientas de geometría diferencial.
En este seminario presentaremos dos aplicaciones principales. La primera utiliza los conjuntos de niveles para filtrar imágenes. Las técnicas derivadas se conocen como técnicas de difusión. Presentaremos ejemplos de difusión isotropica, anisotropica y filtros de choque. La segunda aplicación trata de segmentación basada en contornos activos (snakes).
Philippe Salembier received a degree from the Ecole Polytechnique, Paris, France, in 1983 and a degree from the Ecole Nationale Supérieure des Télécommunications, Paris, France, in 1985. He received the Ph.D. from the Swiss Federal Institute of Technology (EPFL) in 1991. He was a Postdoctoral Fellow at the Harvard Robotics Laboratory, Cambridge, MA, in 1991.
From 1985 to 1989, he worked at Laboratoires d'Electronique Philips, Limeil-Brevannes, France, in the fields of digital communications and signal processing for HDTV. In 1989, he joined the Signal Processing Laboratory of the Swiss Federal Institute of Technology in Lausanne, Switzerland, to work on image processing. At the end of 1991, after a stay at the Harvard Robotics Laboratory, he joined the Technical University of Catalonia, Barcelona, Spain, where he is currently professor lecturing on the area of digital signal and image processing.
His current research interests include image and sequence coding, compression and indexing, image modeling, segmentation, video sequence analysis, mathematical morphology, level sets and nonlinear filtering. In terms of standardization activities, he has been particularly involved in the definition of the MPEG-7 standard ("Multimedia Content Description Interface") as chair of the "Multimedia Description Scheme" group between 1999 and 2001.
He served as an Area Editor of the Journal of Visual Communication and Image
Representation (Academic Press) from 1995 until 1998 and as an AdCom officer of
the European Association for Signal Processing (EURASIP) from 1994 until 1999.
He has edited (as guest editor) special issues of Signal Processing on "Mathematical
Morphology" (1994) and on "Video sequence analysis" (1998). He has also co-edited
(with Prof. Fernando Pereira) a special issue of Signal processing: Image
Communication on MPEG-7 Technology (2000). He was co-editor-in-chief of Signal
Processing between 2001 and 2002. He was member of the Image and
Multidimensional Signal Processing Technical Committee of the IEEE Signal
Processing Society between 2000-2006 and was technical chair (with Prof. Ed.
Delp) of the IEEE Int. Conf. on Image Processing, ICIP'2003 organized in
Barcelona. Finally, he is currently serving as associate editor of the IEEE
Transactions on Image Processing since 2002 and of the IEEE Signal Processing
Letters since 2005.