Towards a method for determining age ranges from faces of juveniles on photographs

Juvenile age estimation from facial images

“…A more recent study (13) found 7 anthropometric indices which show a correlation with age of 0.7 or above, with no relevant differences between male and female face measurements. The authors noted that the use of photo-anthropometry is cautioned against and suggested that pose differences may affect the comparison of facial indices.…”

“…3 years old), while 10 questions asked for an age range to be chosen from four predetermined age cohorts. The choice of age groups were; 0-5 years, 6-10 years, [11][12][13][14][15] years and 16-20 years and were chosen based on important dental and growth markers. There was no imposed time limit for completion of the questionnaire.…”

“…However, studies have shown that age estimation from secondary sexual characteristics is inaccurate, with wide variability in the choice of features believed to be most important in age assessment (8). Growth and sexual maturation can be affected by many factors such as environmental factors, obesity and malnutrition, population differences and even individual biology can influence the rate and timing of sexual maturation (4,5,13). In addition, the assessment of sexual maturation may be confused, as adults may remove features such as pubic and axillary hair in order to appear younger.…”

“…The use of anthropometrics to estimate the age of a child from facial photographs has been tested by a group of European researchers (6,13). These studies have been carried out with the aim of being able to define an age, or age range from the faces of individuals present in images of alleged child pornography.…”

Análise de imagens tridimensionais da face e sua relação com a maioridade civil em indivíduos brasileiros

“…A estimativa da idade em vivos por meio de imagens fotográficas ou vídeos tem despertado especial interesse na área forense em decorrência, principalmente, do aumento de crimes relacionados à exploração sexual envolvendo crianças e adolescentes (CATTANEO et al, 2012;CATTANEO et al, 2009;CUMMAUDO et al, 2014;RATNAYAKE et al, 2014). Nesse escopo, o advento e popularização da internet somado à facilidade com que informações são manuseadas e compartilhadas de forma rápida e relativamente anônima possibilitou que crimes cibernéticos envolvendo conteúdos sexuais tenham se tornado uma prática frequente e em expansão, sobretudo crimes de pornografia infanto-juvenil (MAYER et al, 2014;SOLDINO;GARCÍA, 2017;STEEL, 2009;WOLAK;FINKELHOR;MITCHELL, 2005;WOLAK;LIBERATORE;LEVINE, 2014;WOLAK et al, 2018).…”