30 KB337 KB17 KB200020242006Jernot, Jean-PaulJouannot-Chesney, PatriciaLantuéjoul, Christianštevilka:1letnik:257 stranistr. 55-61ISSN:1580-3139COBISSID:21170393URN:URN:NBN:SI:doc-WWH7O0NDenDruštvo za stereologijo in kvantitativno analizo slike, Medicinska fakultetaImage analysis and stereologydelciDelec, velikostgeologijageologyImage Processing, Computer-AssistedmikrostrukturaParticle SizeprahoviSlika, obdelava z računalnikomstereologijaPractical determination of the coordination number in granular media|In a random stacking of particles, the coordination number is defined as the mean number of particles touching a given one. A classical measurement by image analysis is directly based on this definition. It can be applied in the theoretical case of a global analysis but some problems occur for practical applications. We propose here a new measurement method based on the contribution to the Euler-Poincare characteristic. A single measurement is performed both on the initial structure (particles linked by contacts) and on the segmented structure (isolated particles). The proposed method is robust w.r.t. the shape of the particles and their contactsTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaDruštvo za stereologijo in kvantitativno analizo slike