主管：中华人民共和国司法部
主办：司法鉴定科学研究院
ISSN 1671-2072  CN 31-1863/N
中国司法鉴定

中国司法鉴定 ›› 2021 ›› Issue (5): 89-94.DOI: 10.3969/j.issn.1671-2072.2021.05.010

• 鉴定科学 • 上一篇    下一篇

口罩佩戴对人像鉴定的影响

卢启萌，毛 晓，凌 嵘，陈晓红，曾锦华，耿浦洋，孙维龙，卞新伟，施少培   

  1. 司法鉴定科学研究院 上海市司法鉴定专业技术服务平台 司法部司法鉴定重点实验室，上海 200063

  • 收稿日期:2020-12-15 出版日期:2021-09-30 发布日期:2021-10-21
  • 通讯作者: 陈晓红（1979—），女，正高级工程师，硕士，主要从事刑事技术鉴定研究。E-mail:chenxh@ssfjd.cn
  • 作者简介:卢启萌（1989—），女，助理研究员，硕士，主要从事声像资料鉴定、电子数据鉴定研究。E-mail:luqm@ssfjd.cn
  • 基金资助:
    上海市领军人才计划（202079）；国家自然科学基金（61605132，U1736102）；司鉴院科研计划（GY2018G-4,GY2019D-1)；上海市司法鉴定专业技术服务平台资助项目（19DZ2292700)。

Influence of Mask Wearing on Identification of Human Images

LU Qimeng, MAO Xiao, LING Rong, CHEN Xiaohong, ZENG Jinhua, GENG Puyang, SUN Weilong, BIAN Xinwei, SHI Shaopei   

  1. Shanghai Forensic Service Platform, Key Laboratory of Forensic Science, Ministry of Justice, Academy of Forensic Science, Shanghai 200063, China

  • Received:2020-12-15 Published:2021-09-30 Online:2021-10-21

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摘要：

目的 通过比较口罩佩戴前后的特征变化，研究口罩佩戴对人像鉴定中使用的面部形态特征的影响。方法 在现有人像同一认定方法主要特征分类的基础上，测量了7名志愿者分别佩戴3种常见类型口罩后面部的遮挡面积，同时统计了197组人像照片所示的口罩可能遮挡区域的特征分布。结果 通过测量和统计发现，面部面积的40 %～45 %被口罩遮挡，特异性特征约有42 %分布于被口罩遮挡区域内。结论 基于实验结果的分析可以对佩戴口罩带来的特征减少和变化进行价值衡量，并根据相关的鉴定规范出具科学可信的鉴定意见。

关键词:

人像鉴定, 面积测量, 特征价值, 口罩

Abstract:

Objective To study the influence of mask-wearing on the facial features used in identification of human images, by comparing the changes of characteristics before and after wearing a mask. Methods Based on the classification of the features used in the identification method for portraits, this paper measured the shielding area of the face of 7 volunteers who were wearing three common types of masks, and analysing the distribution of the characteristics at the shielding areas of the masks as shown in the photos of 197 groups of portrait photos. Results Through measurement and statistics, it was found that 40%-45% of the face area was covered by the mask, and about 42% of the specific features were distributed in the area covered by the mask. Conclusion The analysis based on the experimental results can measure the value of the feature reduction and changes brought about by wearing masks, and issue scientific and credible identification opinions according to relevant identification specifications.

Key words:

 identification of human image, area measurement, feature value；face mask

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