Wyniki wyszukiwania - BazTech

1

Wavelet analysis of polarization maps of polycrystalline biological fluids networks

Ushenko Y. A.

Opto-Electronics Review

|

2011

|

Vol. 19, No. 4

425-434

EN

The optical model of human joints synovial fluid is proposed. The statistic (statistic moments), correlation (autocorrelation function) and self-similar (Log-Log dependencies of power spectrum) structure of polarization two-dimensional distributions (polarization maps) of synovial fluid has been analyzed. It has been shown that differentiation of polarization maps of joint synovial fluid with different physiological state samples is expected of scale-discriminative analysis. To mark out of small-scale domain structure of synovial fluid polarization maps, the wavelet analysis has been used. The set of parameters, which characterize statistic, correlation and self-similar structure of wavelet coefficients' distributions of different scales of polarization domains for diagnostics and differentiation of polycrystalline network transformation connected with the pathological processes, has been determined.

2

Phase maps of polycrystalline human biological fluids networks : statistical, correlation, and fractal analysis

Ushenko Y. A.

Opto-Electronics Review

|

2011

|

Vol. 19, No. 3

333-339

EN

The complex statistical and fractal analysis of phase properties, inherent to birefringence networks of liquid crystals consisting of optically-thin layers, prepared from synovial fluid taken from human joints, is performed in this work. Within the framework of a statistical approach, the authors have investigated values and ranges for changes of statistical moments of the 1-st to the 4-th orders that characterize coordinate distributions for phase shifts between orthogonal components of amplitudes inherent to laser radiation, transformed by synovial fluid layers, for human joints with various pathologies. The correlation criteria for differentiation of phase maps, describing pathologically changed liquid-crystal networks, have been ascertained. In the framework of the fractal approach, dimensions of self-similar coordinate phase distributions as well as features of transformation of logarithmic dependences for power spectra of these distributions for various types of human joint pathologies are determined.

3

Polarized cartography of biofractals

Ushenko Y. A.

Elektronika : konstrukcje, technologie, zastosowania

|

2004

|

Vol. 45, nr 8-9

313-315

EN

Specific features of the formation of local and statistical polarization structures of laser radiation scattered in phase-inhomogeneous layers (PIL) of biological tissue (BT) were studied. The distribution of azimuth and eccentricity of boundary field polarization was found to correlate with the orientation-phase structure of multifractal PIL. A method of polarization phase reconstruction of BT architectonics was suggested.

4

Correlation structure of Mueller matrices of biotissue and their physiological state diagnostics

Ushenko Y. G., Ushenko Y. A., Olar O. I., Pishak V. P., Pishak O. V.

Elektronika : konstrukcje, technologie, zastosowania

|

2004

|

Vol. 45, nr 8-9

315-317

EN

The interrelation of orientalion, anisotropy structure of biotissue architectonics and topological element distribution of John Matrices is investigated here. It is researched the analytical correlation of bioobject John Matrices microstructure with matrix element indices measured in the far field of Fraunhofer diffraction. The investigation is also dealt with the computer modelling and experimental researching the structure of matrix operator of multifractal amorphous - crystalline organization of different morphological structure biotissues.

PL

W artykule badano współzależność pomiędzy orientacją, strukturą anizotropii architektoniki biotkanki oraz topologicznym rozkładem elementów macierzy Johna. Prowadzano badania nad analityczną korelacją pomiędzy mikrostrukturą bioobiektowej macierzy Johna a wskażnikami elementu macierzy zmierzonymi w części pola dyfrakcji Fraunhofera, znajdującej się w dużej odległości od żródła promieniowania. Prace badawcze dotyczą także modelowania komputerowego oraz badań eksperymentalnych struktury operatorów macierzy wielofraktalnej bezpostaciowo-krystalicznej organizacji różnych biotkanek struktur morfologicznych.

5

Laser polarization visualization and selection of biotissue images

Angelsky O.V., Ushenko A.G., Burkovets D.N., Ushenko Y.A.

Optica Applicata

|

2002

|

Vol. 32, nr 4

591-601

EN

This paper is devoted to the analysis and experimental testing of the concept of laser polarization biotissue probing. The methods of increasing the signal-to-noise ratio in coherent images of the optically anisotropic architectonics of the morphological biotissue structure are considered. The possibilities of polarization selection and contrasting of such images screened by other biotissues are examined. The influence of the depolarization degree of the scattered background on the signal -to-noise ratio is investigated. The possibilities of polarization correction of the probing beam for contrasting biotissue images are analyzed.

6

Automatic polarimetric system for early medical diagnosis by biotissue testing

Jóźwicki R., Patorski K., Angelsky O.V., Ushenko A.G., Burkovets D.N., Ushenko Y.A.

Optica Applicata

|

2002

|

Vol. 32, nr 4

603-612

EN

An automatic polarimetric system constructed at the Optical Engineering Division of the Warsaw University of Technology (Poland) and the evaluation method developed at the Department of Correlation Optics of Chernivtsi State University (Ukraine) are presented. The polarimeter has been designed and constructed to test the biotissues in the form of biopsy samples. After the system autocalibration the isocline and isochrome images are registered automatically. Correlation characteristics of the images calculated by the computer program provide the basis for formulating the medical diagnosis.