面部软组织厚度与头骨测量尺寸的相关性改善了头骨面部识别估计:事实还是虚构?
Te Wai Pounamu T Hona1, Carl N Stephan1
1Laboratory for Human Craniofacial and Skeletal Identification (HuCS-ID Lab), School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland, Australia.
Journal of forensic sciences
|December 31, 2024
概括
大人的头骨尺寸与面部软组织厚度 (FSTT) 有较弱的相关性. 使用这些维度的线性回归模型不会在简单平均值之外改善FSTT估计.
科学领域:
- 法医人类学 法医人类学
- 医疗成像医学成像
- 生物识别信息 生物识别信息
背景情况:
- 头骨尺寸在线性回归 (LR) 模型中用于估计面部软组织厚度 (FSTTs),用于面识别.
- 这些模型的准确性依赖于头骨测量和FSTT之间的强烈相关性,这在成年人群中并未得到一致的证明.
研究的目的:
- 调查成年尸体的头骨尺寸和FSTT之间的相关性.
- 通过使用现代成像技术,评估先前发布的LR模型对FSTT估计的有效性.
主要方法:
- 磁共振成像用于测量38个成年尸体的头骨尺寸和FSTT.
- 传统的测量方法 (扩散,针刺) 也用于可复制性比较.
- 分析了头骨尺寸和FSTT之间的相关性,并将LR模型性能与算术平均值进行了比较.
主要成果:
- 头骨尺寸和FSTT之间的相关性通常很弱 (平均绝对r=0.13;范围=-0.40到0.33).
- 之前发表的LR模型既没有继承或MR数据的支持.
- 与MR样本中的简单算术平均值相比,LR模型没有改善FSTT估计值 (SEE LR = 5.5 mm与SEE平均值 = 5.2 mm).
结论:
- 头骨尺寸与成年人类的FSTT存在微弱的相关性.
- 对于提高FSTT估计超出算术平均值的尺寸的实用性是有限的.
- 这些发现支持了关于LR模型的局限性的预先警告,用于基于这些测量的面识别.
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