18 research outputs found

    Degree of local depolarization determined for fields of laser radiation scattered by multilayer birefringent networks of protein crystals

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    Represented in this work are theoretical basics for description of fields created by scattered coherent radiation with using the new correlation parameter – degree of local depolarization (DLD). The authors have adduced data of measurements of coordinate distributions for DLD in laser images of healthy and pathologically changed skin of a rat. Investigated are the values and ranges of changes in statistical (moments of the first to fourth orders), correlation (correlation area) and fractal (slopes and dispersion of extremes of logarithmic dependences for power spectra) parameters of coordinate distributions for DLD. Defined are objective criteria for diagnostics of oncological changes in the structure of rat skin

    Wavelet analysis for polarization maps of biological images of optical anisotropic layers

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    Анотація. Теоретично обґрунтовано ефективність статистичного і фрактального аналізів розподілів вейвлет-коефіцієнтів матриці Мюллера лазерних зображень мереж біологічних кристалів людської тканини. Встановлено чіткий взаємозв'язок між статистичними моментами і спектрами потужності для розподілів вейвлет-коефіцієнтів і відповідним орієнтаційно-фазовими трансформаціями мереж біологічних кристалів. Визначено критерії статистичної та фрактальної діагностики змін двопроменезаломлюючої структури реальних біологічних кристалічних мереж, що відповідає патологічним змінам у тканині. Аннотация. Теоретически обоснована эффективность статистического и фрактального анализов распределений вейвлет-коэффициентов матрицы Мюллера лазерных изображений сетей биологических кристаллов человеческой ткани. Установлено четкая взаимосвязь между статистическими моментами и спектрами мощности для распределений вейвлет-коэффициентов и соответствующим ориентационно-фазовыми трансформациями сетей биологических кристаллов. Определены критерии статистической и фрактальной диагностики изменений двулучепреломляющей структуры реальных биологических кристаллических сетей, соответствует патологическим изменениям в ткани. Annotation. The efficiency of statistical and fractal analysis of the distribution of wavelet coefficients matrix Muller laser images of nets of crystals of human biological tissue has been theoretically grounded. A clear correlation between statistical moments and power spectrum distributions for wavelet coefficients and the corresponding orientation-phase transformation of crystals of biological nets has been determined. The criteria of statistical and fractal diagnosis of birefringence crystal structure of real biological nets changes, corresponds to the pathological changes in tissue

    Wavelet-analysis for Laser Images of Blood Plasma

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    The possibilities of the local wavelet-analysis of polarization-inhomogeneous laser image of human blood plasma were considered. The set of statistics, correlation and fractal parameters of the distributions of wavelet-coefficients that are characterize different scales of the polarization maps of polycrystalline networks of amino acids of blood plasma were defined. The criteria for the differentiation of the transformation of birefringence optical-anisotropic structures of blood plasma at different scales of their geometric dimensions were determined

    Polarization-singular structure in laser images of phase-inhomogeneous layers to diagnose and classify their optical properties

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    Adduced in this work are the results of investigation aimed at analysis of coordinate distributions for azimuths and ellipticity of polarization (polarization maps) in laser images of three types of phase-inhomogeneous layers (PhIL), namely: rough, ground and bulk scattering layers. To characterize polarization maps for all the types of PhIL, the authors have offered to use three groups of parameters: statistical moments of the first to fourth orders, autocorrelation functions, logarithmic dependences for power spectra related to distributions of azimuths and ellipticity of polarization inherent to PhIL laser images. Ascertained are the criteria for diagnostics and classification of PhIL optical properties

    Complex degree of coherency inherent to laser images of blood plasma polycrystalline networks

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    Given in this paper are theoretical basics for correlation-phase analysis of laser images inherent to human blood plasma. Also presented are comparative results of measurements aimed at coordinate distributions of the module of complex degree of coherency (CDC) and complex degree of mutual polarization (CDMP) of laser images describing blood plasma of a healthy person as well as of a patient with prostate cancer of the first stage. The authors investigated both values and ranges of changing the statistical (moments of the first to fourth orders), correlation (coefficients of the GrammCharlie expansion for autocorrelation functions) and fractal (slopes and dispersion of extremes for logarithmic dependences of power spectra) parameters for coordinate distributions CDC and CDMP. Determined are objective criteria for diagnostics of cancer changes in blood plasma of a patient with cancer

    Polarization-singular structure in laser images of phase-inhomogeneous layers to diagnose and classify their optical properties

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    Adduced in this work are the results of investigation aimed at analysis of coordinate distributions for azimuths and ellipticity of polarization (polarization maps) in laser images of three types of phase-inhomogeneous layers (PhIL), namely: rough, ground and bulk scattering layers. To characterize polarization maps for all the types of PhIL, the authors have offered to use three groups of parameters: statistical moments of the first to fourth orders, autocorrelation functions, logarithmic dependences for power spectra related to distributions of azimuths and ellipticity of polarization inherent to PhIL laser images. Ascertained are the criteria for diagnostics and classification of PhIL optical properties

    Polarization-singular structure in laser images of phase-inhomogeneous layers to diagnose and classify their optical properties

    No full text
    Adduced in this work are the results of investigation aimed at analysis of coordinate distributions for azimuths and ellipticity of polarization (polarization maps) in laser images of three types of phase-inhomogeneous layers (PhIL), namely: rough, ground and bulk scattering layers. To characterize polarization maps for all the types of PhIL, the authors have offered to use three groups of parameters: statistical moments of the first to fourth orders, autocorrelation functions, logarithmic dependences for power spectra related to distributions of azimuths and ellipticity of polarization inherent to PhIL laser images. Ascertained are the criteria for diagnostics and classification of PhIL optical properties
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