Juvenile age estimation from facial images
Juvenile age estimation from facial images
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DOI：
10.1016/j.scijus.2016.08.005
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发表时间：
2017-01-01
影响因子：
1.9
通讯作者：
Wilkinson, Caroline
中科院分区：
文献类型：
--
作者：
Ferguson, Eilidh;Wilkinson, Caroline
根据图像确定年龄至关重要，特别是在涉及涉嫌儿童性虐待 (CSA) 的案件中。必须确定此类图像中描绘的个人是否确实是儿童，通常会寻求更简洁的年龄，因为这可能会影响罪犯量刑的严重程度。本研究的目的是确定 0 至 16 岁儿童青少年面部视觉年龄估计的准确性，并确定不同程度的接触儿童是否会影响个人通过面部评估年龄的能力。使用 SurveyMonkey (R) 创建了包含 30 张青少年面部图像的在线调查问卷。总体结果表明，青少年面部视觉年龄估计的准确性较差。参与者的年龄、性别、职业和子女数量并不影响从面部图像估计年龄的能力。同样，青少年面孔的性别和年龄似乎并没有影响年龄估计的准确性。当考虑特定年龄组时，性别可能会对年龄估计产生影响，女性面孔在较年轻的年龄组中更准确，而男性面孔在 11 岁之后更准确，但这只是基于小样本。这项研究表明，使用简单的图像视觉评估，仅通过面部来估计青少年年龄的准确性很差。需要进一步的研究来确定如何根据面部图像准确评估年龄，是否存在导致高估或低估青少年年龄的指标或特征。 (C) 2016 年英国皇家法医科学学会。由爱思唯尔爱尔兰有限公司出版。保留所有权利。
Age determination from images can be of vital importance, particularly in cases involving suspected child sexual abuse (CSA). It is imperative to determine if an individual depicted in such an image is indeed a child, with a more concise age often sought, as this may affect the severity of offender sentencing.The aims of this study were to establish the accuracy of visual age estimation of the juvenile face in children aged between 0 and 16 years and to determine if varying levels of exposure to children affected an individual's ability to assess age from the face. An online questionnaire consisting of 30 juvenile face images was created using SurveyMonkey (R).The overall results suggested poor accuracy for visual age estimation of juvenile faces. The age, sex, occupation and number of children of the participants did not affect the ability to estimate age from facial images. Similarly, the sex and age of the juvenile faces did not appear to affect the accuracy of age estimation. When specific age groups are considered, sex may have an influence on age estimation, with female faces being aged more accurately in the younger age groups and male faces more accurate after the age of 11 years, however this is based on a small sample. This study suggests that the accuracy of juvenile age estimation from the face alone is poor using simple visual assessment of images. Further research is required to determine exactly how age is assessed from a facial image, if there are indicators, or features in particular that lead to over- or under-estimation of juvenile age. (C) 2016 The Chartered Society of Forensic Sciences. Published by Elsevier Ireland Ltd. All rights reserved.