34 KB6434 KB24 KB200020242008Bednařík, PetrBeneš, MichalLauschmann, HynekSekerešová, Zuzanaštevilka:2letnik:279 stranistr. 63-71ISSN:1580-3139COBISSID:24559321URN:URN:NBN:SI:doc-YC3MKAEEenDruštvo za stereologijo in kvantitativno analizo slike, Medicinska fakultetaImage analysis and stereologyFractalsFraktaliImage Processing, Computer-AssistedJekloPattern RecognitionrazpokeRaztezanje, trdnostSlika, obdelava z računalnikomSteelTensile Strengthutrujenost materialovVzorec, razpoznavanjeFractal image feature vectors with applications in fractography|The morphology of fatigue fracture surface (caused by constant cycle loading) is strictly related to crack growth rate. This relation may be expressed, among other methods, by means of fractal analysis. Fractal dimension as a single numerical value is not sufficient. Two types of fractal feature vectorsare discussed: multifractal and multiparametric. For analysis of images, the box-counting method for 3D is applied with respect to the non-homogeneity of dimensions (two in space, one in brightness). Examples of application are shown: images of several fracture surfaces are analyzed and related to crack growth rateTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaDruštvo za stereologijo in kvantitativno analizo slike