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优先考虑质量:调查图像质量对法医面部比较的影响

Nicholas Bacci¹, Nanette Briers², Maryna Steyn³

¹Human Variation and Identification Research Unit, School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa. Nicholas.Bacci@wits.ac.za.

International journal of legal medicine

|February 22, 2024

概括

图像质量评分辅助法医面部比较准确性. 高质量的图像与正确匹配相关,而低质量的图像会导致错误,提高识别可靠性.

科学领域:

法医科学法医科学法医科学
图像分析图像分析

背景情况:

法医面部比较中的形态分析在司法上得到了验证.
目前缺乏图像质量保证系统,阻碍了最佳实践的图像分类.

研究的目的:

测试一种半定量评分方法,用于在法医面部比较中评估图像质量.
量化调查面部图像分辨率和照明质量.

主要方法:

利用了来自Wits Face数据库的400张面部图像.
调整并测试了一种半定量图像质量评分系统.
计算的面对图像像像素比例,以获得分辨率和像素曝光,以获得照明质量.

主要成果:

高图像质量得分与正确匹配相关;低得分与不正确匹配相关.
与真匹配相关的更高的像素比例 (分辨率).
照明质量 (曝光) 影响了虚假阳性和虚假阴性.

结论:

一种简单的图像质量评分方法可以促进法医面部比较中的图像分类.
建议对图像质量值的定量测量进行进一步的研究,以提高对比的信心.

关键词:

面部比较面部比较面部识别功能面部识别功能图像质量图像质量照明照明照明照明形态学分析形态学分析决议决议决议

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