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Modelling of facial growth in Czech children based on longitudinal data: Age progression from 12 to 15 years using 3D surface models
J. Koudelová, J. Dupej, J. Brůžek, P. Sedlak, J. Velemínská,
Language English Country Ireland
Document type Journal Article, Research Support, Non-U.S. Gov't
NLK
ProQuest Central
from 1997-02-07 to 2 months ago
Nursing & Allied Health Database (ProQuest)
from 1997-02-07 to 2 months ago
Health & Medicine (ProQuest)
from 1997-02-07 to 2 months ago
- MeSH
- Principal Component Analysis MeSH
- Child MeSH
- Humans MeSH
- Longitudinal Studies MeSH
- Maxillofacial Development * MeSH
- Adolescent MeSH
- Multivariate Analysis MeSH
- Computer Simulation * MeSH
- Sex Characteristics MeSH
- Forensic Anthropology MeSH
- Imaging, Three-Dimensional * MeSH
- Check Tag
- Child MeSH
- Humans MeSH
- Adolescent MeSH
- Male MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Geographicals
- Czech Republic MeSH
Dealing with the increasing number of long-term missing children and juveniles requires more precise and objective age progression techniques for the prediction of their current appearance. Our contribution includes detailed and real facial growth information used for modelling age progression during adolescence. This study was based on an evaluation of the overall 180 three-dimensional (3D) facial scans of Czech children (23 boys, 22 girls), which were longitudinally studied from 12 to 15 years of age and thus revealed the real growth-related changes. The boys underwent more marked changes compared with the girls, especially in the regions of the eyebrow ridges, nose and chin. Using modern geometric morphometric methods, together with their applications, we modelled the ageing and allometric trajectories for both sexes and simulated the age-progressed effects on facial scans. The facial parts that are important for facial recognition (eyes, nose, mouth and chin) all deviated less than 0.75mm, whereas the areas with the largest deviations were situated on the marginal parts of the face. The mean error between the predicted and real facial morphology obtained by modelling the children from 12 to 15 years of age was 1.92mm in girls and 1.86mm in boys. This study is beneficial for forensic artists as it reduces the subjectivity of age progression methods.
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- $a Koudelová, Jana $u Department of Anthropology and Human Genetics, Faculty of Science, Charles University in Prague, Czech Republic. Electronic address: spackovajana@email.cz.
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- $a Dealing with the increasing number of long-term missing children and juveniles requires more precise and objective age progression techniques for the prediction of their current appearance. Our contribution includes detailed and real facial growth information used for modelling age progression during adolescence. This study was based on an evaluation of the overall 180 three-dimensional (3D) facial scans of Czech children (23 boys, 22 girls), which were longitudinally studied from 12 to 15 years of age and thus revealed the real growth-related changes. The boys underwent more marked changes compared with the girls, especially in the regions of the eyebrow ridges, nose and chin. Using modern geometric morphometric methods, together with their applications, we modelled the ageing and allometric trajectories for both sexes and simulated the age-progressed effects on facial scans. The facial parts that are important for facial recognition (eyes, nose, mouth and chin) all deviated less than 0.75mm, whereas the areas with the largest deviations were situated on the marginal parts of the face. The mean error between the predicted and real facial morphology obtained by modelling the children from 12 to 15 years of age was 1.92mm in girls and 1.86mm in boys. This study is beneficial for forensic artists as it reduces the subjectivity of age progression methods.
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- $a Dupej, Ján $u Department of Anthropology and Human Genetics, Faculty of Science, Charles University in Prague, Czech Republic; Department of Software and Computer Science, Faculty of Mathematics and Physics, Charles University in Prague, Czech Republic.
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