A. G. Ushenko

This book highlights the effectiveness of differential diagnosis in the degree of severity of joint pathology from a clinical, biophysical, and informational point of view. It includes the following information blocks: • Two-dimensional digital polarization microscopy of polycrystalline films of synovial fluid and determination of the coordinate distributions of the orientation and phase parameters of the microscopic image from a set of parameters of the Stokes vector. • Mueller-matrix mapping of polycrystalline films of synovial fluid and determination of a set of coordinate distributions (Mueller-matrix images (MMI)) of azimuthal-invariant elements that characterize manifestations of optical activity and linear birefringence. • Development of algorithms for polarization reproduction of distributions of linear and circular birefringence of polycrystalline films of synovial fluid. • Identification of digital statistical, correlation and wavelet criteria of polarization and Mueller-matrix differential diagnosis of the degree of severity of joint pathology. • Determination of maps of laser-induced fluorescence of synovial fluid polycrystalline films. • Identification of statistical and correlational criteria for fluorescent differential diagnosis of the degree of severity of joint pathology. • Operational characteristics of the power of the methods of azimuth-invariant polarization, Mueller-matrix and laser autofluorescence microscopy of polycrystalline films of synovial fluid.

This book presents numerical computer-aided smart-methods as part of a comprehensive statistical, correlation and fractal analysis of laser polarimetry data. It highlights relationships between polarization (azimuth distributions, polarization ellipticities, Stokes vector parameters, Mueller matrix elements) parameters of laser images of biological tissues of a human corpse in different spectral ranges and temporal dynamics of their postmortem morphological changes. The book discusses the effectiveness of correlation analysis of two-dimensional distributions of polarization inhomogeneous images of histological sections of the main types of biological tissues in determining the time of death. It also discusses the development of basic principles of phase measurements (phasometry) of microscopic images of biological tissues to determine the age of death and the time of hematoma formation. Also presented in the book are possibilities of complex laser spectral photopolarimetry images ofhistological sections of biological tissues of human corpse in different spectral regions, with the simultaneous development and substantiation of a set of statistical and correlational criteria for objective determination of the time of death.

This book highlights the results of numerical computer-aided smart methods as part of a comprehensive statistical, correlated, and fractal analysis of laser polarimetry. It includes a comprehensive approach to differentiation of lifelong or postmortem origin of injuries and determination of their antiquity based on the analysis of statistical and spatiotemporal frequency evolution of photometric, polarization, and phase parameters of laser images of histological sections of the skin of biomannequins. It discusses the relationship between the coordinate distributions of the intensity of laser images from skin tissues of biomannequins and the nature of its damage. It presents the analysis of relationships between changes in the mean and variance of coordinate distributions of azimuths and ellipticity of polarization images of histological skin sections and the time intervals after injury. Complex differentiation of lifelong and postmortem skin injuries of biomannequins and establishment of their time intervals throughout the entire monitoring interval of changes in the mean and variance of coordinate distributions of phase shifts between orthogonal components of the amplitude of laser images of a series of corresponding histological sections are also presented in this book.

This book highlights the first systematic synthesis of various research approaches in forensic medical diagnosis of the morphological and polycrystalline structure of human biological tissues and biological fluids. One of the global challenges in such diagnosis is the assessment of actual time of death. The relevance and objectivity of such studies are given by the innovative use of complex multifunctional methods using lasers and Mueller-matrix polarimetry, which is presented in this book. As a result, within the framework of the statistical, correlation and fractal approaches, diagnostic relationships were established between the time parameters of the transformation of the topographic structure of polarization-inhomogeneous microscopic images of biological preparations and necrotic changes in the morphological structure of biological tissues of the deceased. On this foundation, new forensic medicine criteria have been developed for objective determination of time of death.

This book presents a new diagnostic approach that utilizes complex statistical, correlation, fractal, and singular analysis of spatial distribution of the Stokes vector of scattered polarized light in different diffraction zones. The technique is able to identify changes in the distribution of optical axes and the birefringent indices of multi-layered fibrillar networks of biological tissues. The book also presents various scenarios for the formation of polarization singularities in laser speckle images of phase-inhomogeneous, multi-layered biological tissues in terms of the characteristic values of Mueller-matrix images. Moreover, in the context of potential diagnostic applications, it discusses the states of polarization singularities and their changes associated with the pathological abnormalities of the extracellular matrix of human tissues, its spatial peculiarities and structural orientation.