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2.2.1 Optical microscopy

In operation optical microscopes of research class МИМ-8М (JlOMO), Zeiss Axiovert and Leitz WetsIaar, provided performance of principal views of observations in modes on reflexion, on a gleam, in a light floor, in temnopolnyh modes with skew and all-round illumination were used,
In polarised light.

During operation self-acting procedures of calculation of dislocation poles on monocrystals of germanium and paratellurita have been realised, that dilates possibilities of a method of the selective etching for examination of the nonuniform allocations of dislocations in large-sized samples.

The analysis of registered images was spent with application of specialised software products of firm ImagePro Plus. The problem of partitioning of conjoint images of dislocation poles of the etching importing errors in measuring of density of flaws was one of the characteristic problems solved with their help. The algorithm of updating of images was grounded on application of morphological operations over the binary images which sense is explained in table 2.1

Table 2.1 Morphological operations over the binary image

erode Object erosion. Leads to replacement of values boundary pikselov object on 0. Unitary application of erosion leads to removal of a stratum of boundary by thickness in 1 piksel.
dilate Narashchenie object. Leads to replacement of values pikselov the background, adjoining on object, on 1. Unitary application narashchenija leads to addition to object of a stratum in the thickness in 1 piksel.
open Opening. Represents the consecutive

Application of erosion and narashchenija. Leads to linking of fields of a background, before separated by narrow sites pikselov objects.

close Concealment. Represents consecutive application narashchenija and erosion. Leads to removal small on the area of fragments of a background, before separated by narrow sites pikselov objects.

In drawing 2.6 the effect of updating of number of poles of etching for the account of segmentation of conjoint images is presented.

Drawing 2.6 - Effects of calculation of number of poles of etching before updating of conjoint images

2.2.2

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A source: Ivanova Alexandra Ivanovna. Micromorphology of a surface and dislocation structure of large-sized optical crystals of germanium and paratellurita. The dissertation on competition of a scientific degree of the candidate of physical and mathematical sciences. Tver - 2015. 2015

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