Spectrometric evaluation of post-mortem optical skin changes
Spectrometric evaluation of post-mortem optical skin changes
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DOI：
10.1007/s00414-013-0855-2
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发表时间：
2014-03-01
影响因子：
2.1
通讯作者：
Bohnert, Michael
中科院分区：
文献类型：
--
作者：
Sterzik, Vera;Belenkaia, Lioudmila;Bohnert, Michael
根据其光学性质，人体皮肤成分可分为两类：在反射光谱中呈峰状的光散射成分和呈低谷状的吸收成分。随着死亡时间间隔的延长，散射体和吸收体的浓度以及反射光谱由于死亡后组织的分解和降解而发生变化。根据195名死者的532次反射光谱测量结果，可以在死后的过程中记录反射光谱的特征变化。随后，通过分析反射光谱极值，提出了一种计算死后间隔的算法。
As to their optical properties, the components of human skin can be divided into two different categories: the light-scattering components shown as peaks and those absorbing light appearing as dips in the reflectance spectrum. As the post-mortem interval progresses, the concentration of scatterers and absorbers and thus the reflectance spectra change due to post-mortem tissue breakdown and degradation. Based on a total number of 532 reflectance spectrometric measurements in 195 deceased, a characteristic change in the reflectance spectra could be documented in the post-mortem course. Subsequently, an algorithm to calculate the post-mortem interval was developed by analysing the reflectance spectrometric extrema.