Analyzing reflectance spectra of human skin in legal medicine
Analyzing reflectance spectra of human skin in legal medicine
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DOI：
10.1117/1.jbo.18.1.017004
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发表时间：
2013
影响因子：
3.5
通讯作者：
Liudmila Belenki;V. Sterzik;Katharina Schulz;M. Bohnert
中科院分区：
文献类型：
--
作者：
Liudmila Belenki;V. Sterzik;Katharina Schulz;M. Bohnert
抽象的。我们目前在跨学科项目框架内的研究重点是通过反射光谱法对死后人体皮肤中血红蛋白复氧过程的动态进行建模。在死后暴露于冷环境中的肝脏中血红蛋白的再氧合的观察将再氧合与在低环境温度下肝脏的颜色印象从铁青色变为粉红色的通常已知的现象相关联。我们分析的光谱相对于描述人体皮肤的光学特性的物理模型，讨论的动力学的复氧，并提出了一个唯象模型复氧。对于反射光谱的额外表征，考虑了在所研究的光谱范围内的局部最小值和最大值的曲率。在560 nm波长处的光谱曲率与O2-Hb浓度有很强的相关性。分析通过C程序以及Java EE，JDBC，Matlab和Python中的MySQL数据库查询进行。
Abstract. Our current research in the framework of an interdisciplinary project focuses on modelling the dynamics of the hemoglobin reoxygenation process in post-mortem human skin by reflectance spectrometry. The observations of reoxygenation of hemoglobin in livores after postmortem exposure to a cold environment relate the reoxygenation to the commonly known phenomenon that the color impression of livores changes from livid to pink under low ambient temperatures. We analyze the spectra with respect to a physical model describing the optical properties of human skin, discuss the dynamics of the reoxygenation, and propose a phenomenological model for reoxygenation. For additional characterization of the reflectance spectra, the curvature of the local minimum and maximum in the investigated spectral range is considered. There is a strong correlation between the curvature of specra at a wavelength of 560 nm and the concentration of O2-Hb. The analysis is carried out via C programs, as well as MySQL database queries in Java EE, JDBC, Matlab, and Python.