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.
Author(s): Zhengbin Hu, I.L. Bezhenar, O.Y. Vanchulyak, A. G. Ushenko, Yu. A. Ushenko, Mykhailo P. Gorsky, Igor Meglinski
Series: SpringerBriefs in Applied Sciences and Technology
Publisher: Springer
Year: 2023
Language: English
Pages: 106
City: Singapore
Acknowledgement
Contents
Abbreviations and Conventions
1 Analysis of Modern Aspects of Determination of Lifetime and Injuries Prescriptions in Forensic Medicine
1.1 Modern Aspects of Determination of Lifetime and Injuries Prescriptions in Forensic Medicine
1.2 Optical Polarization and Correlation Methods of the Diagnostics of Phase-Inhomogeneous Biological Structures in Medicine
References
2 Materials and Methods of Research in Laser Polarimetry Data Processing of Biological Tissues for Forensic Determining the Age of Injury
2.1 Morphological Structure of Human Skin
2.1.1 Epidermis
2.1.2 Derma or Skin Itself
2.1.3 Amorphous Skin Substance
2.2 Modelling of the Human Skin Layer as a Transformer of Laser Radiation Parameters
2.2.1 The Formation of the Distribution of Azimuths and Ellipticities of Polarization and Phase Shifts of the Laser Image of Histological Sections of the Skin
2.2.2 The Formation of Intensity Distributions of Laser Images of Histological Sections of the Skin
2.2.3 The Formation of Distributions of the Degree of Depolarization of Laser Radiation Scattered by Histological Sections of the Skin
2.3 The Experimental Scheme of Polarimetric Studies
2.3.1 Method of Measuring Polarization and Phase Parameters of the Laser Images
2.4 Statistical and Correlation Approaches in the Analysis of Laser Images of Skin Derma [22–32]
2.5 Fractal Approach in the Analysis of the Polarization Properties of Laser Images of Skin Histological Sections [22–32]
2.6 Experimental Illustrations of the Polarization Structure of Laser Images of Histological Sections of Human Skin
References
3 Determination of the Lifetime and Post-mortal Nature and Temporal Dynamics of the Formation of Skin Abrasions
3.1 Study of the Statistical Structure of the Intensity Distribution of Laser Images of Histological Sections of Skin Abrasions
3.2 Analysis of the Statistical Structure of the Power Spectra of Intensity of Laser Images of Histological Sections of Skin Abrasions
3.3 Investigation of the Temporal Dynamics of Changes in the Statistical Parameters of the Intensity Distributions of Laser Images of Skin Abrasions
References
4 Study of Two-Dimensional Polarization Maps of the Skin for Differentiation of Lifetime and Post-mortal Nature and Temporal Dynamics of Abrasions
4.1 Study of Two-Dimensional Distributions of Azimuths of Polarization of Laser Images of the Skin with Lifetime and Post-mortal Abrasions
4.2 Study of the Temporal Dynamics of Changes in the Average and Dispersion of the Coordinate Distributions of the Azimuths of Polarization of Laser Images of Skin Abrasions
4.3 Study of Two-Dimensional Distributions of Ellipticity of Polarization of Laser Images of Skin with Lifetime and Post-mortal Abrasions
4.4 Investigation of the Temporal Dynamics of Changes in the Average and Dispersion of the Coordinate Distribution of the Ellipticity of Polarization of Laser Images of Skin Abrasions
4.5 Correlation and Frequency-Spectral Analysis of Polarization Maps of Skin Abrasions
4.5.1 Correlation Analysis of Coordinate Distributions of the Azimuth of Polarization of the Laser Images of Skin Abrasions
4.5.2 Spatial-Frequency Analysis of Coordinate Distributions of Azimuths of Polarization of Laser Images of Skin Abrasions
4.5.3 Correlation Analysis of Coordinate Distributions of Ellipticity of Polarization of Laser Images of Skin Abrasions
4.5.4 Spatial-Frequency Analysis of Coordinate Distributions of Ellipticity of Polarization of Laser Images of Skin Abrasions
References
5 Study of the Evolution of Phase Images of the Skin for Differentiation of the Lifetime and Post-mortal Skin Abrasions and the Time of Their Appearance
5.1 Investigation of the Temporal Dynamics of Changes of Phase Shifts Between Orthogonal Components of the Amplitude of Laser Radiation Scattered by Skin Abrasions
5.2 Correlation and Spatial-Frequency Structure of Phase Images of Histological Sections of Abrasions of the Skin of Biomannequin
5.3 Spatial-Frequency Analysis of a Temporary Change in the Coordinate Phase Distributions of Laser Images of Skin Abrasions
References
Conclusions
References
