| Author/Editor | Lauschmann, Hynek; Raček, Ondrej; Tuma, Michal; Nedbal, Ivan | |
| Title | Textural fractography | |
| Type | članek | |
| Source | Image Anal Stereol | |
| Vol. and No. | Letnik 20, št. Suppl 1 | |
| Publication year | 2001 | |
| Volume | str. 372-8 | |
| Language | eng | |
| Abstract | The reconstitution of the history of a fatigue process is based on the knowledge of any correspondences between the morphology of crack surface and the velocity of crack growth (crack growth rate - CGR). The textural fractography is oriented to mezoscopic SEM magnifications (30=500x). lmages contain a complicated texture without distict borders. The aim is to find any characteristics of this texture which correlate with CGR. Pre-processing of images is necessary to obtain a homogeneous texture. Three methods of textural analysis have been developed: method based on the spectral structure of the image, method based on a Gibbs random field (GRF) model, and method based on the idealisation of light objects into a fibre process. | |
| Descriptors | MATERIALS TESTING PARTICLE SIZE MICROSCOPY, ELECTRON, SCANNING FOURIER ANALYSIS IMAGE PROCESSING, COMPUTER-ASSISTED |