40 KB533 KB24 KB200020242003Angella, FranckBaylou, PierreGermain, ChristianLavialle, Olivierštevilka:1letnik:228 stranistr. 35-42ISSN:1580-3139COBISSID:16049625URN:URN:NBN:SI:doc-RFRCZ86AenDruštvo za stereologijo in kvantitativno analizo slike, Medicinska fakultetaImage analysis and stereologyanaliza slikDelec, velikostImage Processing, Computer-Assistedmatematični modeliParticle SizeSlika, obdelava z računalnikomstereologijaDynamic particle systems for object structure extraction|A new deformable model based on the use of a particle system is introduced. Bydefining the local behavior of each particle, the system behaves as an active contour model showing a variable topology and regularization properties. The efficiency of the particle system is illustrated by two applications: the first one concerns the use of the system as a skeleton extractor based on the propagation of particles inside a treeshaped object. Using this method, it is possible to generate a cartography of structures suchas veins or channels. In a second illustration, the system avoids the problem of initialization of a piecewise cubic B-spline network used to straighten curved text linesTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaDruštvo za stereologijo in kvantitativno analizo slike