NDLI: Contours actifs geodesiques et a modeles contraints pour le suivi des orages dans un contexte multisenseur : Radar, interferometre VHF, satellite IR

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Contours actifs geodesiques et a modeles contraints pour le suivi des orages dans un contexte multisenseur : Radar, interferometre VHF, satellite IR

Content Provider	Semantic Scholar
Author	Barbaresco, Frédéric Bonney, S. Lambert, J. Monnier, Bernard Airsys, Thomson-Csf Radar, Developpement
Copyright Year	1997
Abstract	The aim of this study is to perform a short term nowcasting of thunderstorm evolution (shape and position). Motion-based seg- mentation of atmospheric phenomenon allows to detect the dyna- mic ones. These dynamic thunderstorms can be tracked by means of adapted algorithms based on new techniques such as front pro- pagation combined with model-constrained active contour for deformation prediction and topological change adaptation. The efficiency of our methods will be demonstrated on multisensor atmospheric images : radar, VHF interferometer and optical ima- ges. This application has two objectives : dynamic m ilitary radar management and civil traffic regulation according to atmospheric phenomenon. Resume Nous decrivons dans cet article une nouvelle methode de suivi dynamique des orages a partir de donnees multisenseurs. La prediction a court terme d'evolution des phenomenes atmosphe- riques en position et en forme est assuree par une methode de contour actif a modele contraint (modele affine complet) qui permet d'identifier les parametres de deformation. Les change- ments de topologie des phenomenes atmospheriques sont geres par la mise en œuvre d'une technique de front de propagation ou contour actif geodesique. L'objectif de cette nouvelle fonction- nalite est double : optimisation dynamique de la gestion radar dans un cadre militaire et gestion optimale des flux aeriens dans un cadre civil.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://documents.irevues.inist.fr/bitstream/handle/2042/12712/179_094.pdf?sequence=1
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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