Photoanthropometry in forensics: Comparison of facial images with frontal and lateral views
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/14795 |
Resumo: | Photoanthropometry quantify the facial proportions of an individual facilitating the comparison of facial patterns for human identification. The coordinates and vertical distances in pixels of the photoanthropometric landmarks on images of the same individual in frontal and profile views were analyzed and compared. A total of 116 pairs of photographs of Brazilian individuals were evaluated. The photographs were adjusted in size and rotation, and marked in the software Two-dimensional Forensic Facial Analysis System. For each face, 16 landmarks were considered: glabella (g), nasion (n), ectocanthion (ec), pronasale (prn), subnasale (sn), alare (al), cheilion (ch), upper lip (ls), lower lip (li), stomion (sto), labiomental (lm), gnathion (gn), superaurale (sa), subaurale (sba), postaurale (pa) and upper ear lobe (slb); the x- and y-coordinates of each landmark were obtained. Twenty-seven vertical distances between the points were proposed, which were measured by subtracting the values of the y-coordinate. The data were analyzed descriptively and inferentially using the Kolmogorov-Smirnov test, intraclass correlation coefficient (ICC) and Mann-Whitney test (α=5%). The mean age of the sample was 25.9 years (± 4.7), and 50.9% (n=59) were males. When the coordinates were evaluated, a low correlation was obtained between the images (ICC<0.4). Of the 27 proposed measures, 77.7% (n=21) indicated agreement between the images in the two views (p>0.05). A comparison of ls-g, sa-ec, pa-ec, slb-ec, sba-sa and slb-sa showed disagreement between the images. Therefore, there is agreement between the facial measures in the frontal and lateral images, except for ls-g and for the distances between the ear landmarks. |
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Photoanthropometry in forensics: Comparison of facial images with frontal and lateral viewsFotoantropometría con finalidad forense: Análisis facial comparativo entre imágenes estándar frontal y lateral Fotoantropometria para fins forenses: Análise facial comparativa entre imagens em norma frontal e lateralOdontología ForenseFaceFotografías.Forensic DentistryFacePhotographs.Odontologia ForenseFaceFotografias.Photoanthropometry quantify the facial proportions of an individual facilitating the comparison of facial patterns for human identification. The coordinates and vertical distances in pixels of the photoanthropometric landmarks on images of the same individual in frontal and profile views were analyzed and compared. A total of 116 pairs of photographs of Brazilian individuals were evaluated. The photographs were adjusted in size and rotation, and marked in the software Two-dimensional Forensic Facial Analysis System. For each face, 16 landmarks were considered: glabella (g), nasion (n), ectocanthion (ec), pronasale (prn), subnasale (sn), alare (al), cheilion (ch), upper lip (ls), lower lip (li), stomion (sto), labiomental (lm), gnathion (gn), superaurale (sa), subaurale (sba), postaurale (pa) and upper ear lobe (slb); the x- and y-coordinates of each landmark were obtained. Twenty-seven vertical distances between the points were proposed, which were measured by subtracting the values of the y-coordinate. The data were analyzed descriptively and inferentially using the Kolmogorov-Smirnov test, intraclass correlation coefficient (ICC) and Mann-Whitney test (α=5%). The mean age of the sample was 25.9 years (± 4.7), and 50.9% (n=59) were males. When the coordinates were evaluated, a low correlation was obtained between the images (ICC<0.4). Of the 27 proposed measures, 77.7% (n=21) indicated agreement between the images in the two views (p>0.05). A comparison of ls-g, sa-ec, pa-ec, slb-ec, sba-sa and slb-sa showed disagreement between the images. Therefore, there is agreement between the facial measures in the frontal and lateral images, except for ls-g and for the distances between the ear landmarks.La fotoantropometría cuantifica las proporciones faciales de un individuo, lo que facilita la comparación de patrones faciales para la identificación humana. Coordenadas y distancias verticales, en píxeles, de los puntos de referencia fotoantropométricos fueron analizadas en imágenes frontales y laterales del mismo individuo. Se evaluaron 116 pares de fotografías de brasileños, ajustadas en tamaño y rotación, y marcadas en el software SAFF-2D, siendo utilizados 16 puntos de referencia en cada cara: glabela (g), nasion (n), ectocanto (ec), pronasal (prn), subnasal (sn), alar (al), chelium (ch), labio superior (ls), labio inferior (li), estomio (sto), labiomental (lm), gnathion (gn), supraauricular (sa), subauricular (sba), postauricular (pa) y supralobular (slb), y se obtuvieron las coordenadas x e y para cada punto. Se consideraron 27 distancias verticales, medidas substrayéndose los valores de la coordenada y. Los datos se analizaron de forma descriptiva e inferencial, mediante las pruebas de Kolmogorov-Smirnov, coeficiente de correlación intraclase (CCI) y Mann-Whitney (α = 5%). La edad media de la muestra fue de 25,9 años (± 4,7), con 50,9% (n = 59) del sexo masculino. Se obtuvo una baja correlación entre las imágenes (ICC <0,4) en la evaluación de las coordenadas. De las 27 medidas propuestas, 77,7% (n = 21) demostraron concordancia entre las imágenes en las dos tomas (p> 0,05). La comparación de ls-g, sa-ec, pa-ec, slb-ec, sba-sa y slb-sa demostró discrepancia entre las imágenes, constatándose concordancia entre las medidas faciales en las imágenes en norma frontal y lateral, excepto ls-g y las distancias entre los puntos de las orejas.A fotoantropometria quantifica as proporções faciais de um indivíduo facilitando a comparação dos padrões faciais para identificação humana. Analisaram-se as coordenadas e distâncias verticais em pixels dos pontos de referência fotoantropométricos em imagens do mesmo indivíduo nas vistas frontal e de perfil. Avaliou-se 116 pares de fotografias de brasileiros, que foram ajustadas em tamanho e rotação, e marcadas no software SAFF-2D. Para cada face, 16 pontos de referência foram considerados: glabela (g), násio (n), ectocanto (ec), pronasal (prn), subnasal (sn), alar (al), chélio (ch), labial superior (ls), labial inferior (li), estômio (sto), labiomental (lm), gnátio (gn), supra-auricular (sa), subauricular (sba), pós-auricular (pa) e supralobular (slb); e obteve-se as coordenadas x e y de cada ponto. Foram propostas 27 distâncias verticais entre os pontos, que foram medidas subtraindo os valores da coordenada y. Os dados foram analisados descritiva e inferencialmente por meio dos testes de Kolmogorov-Smirnov, coeficiente de correlação intraclasse (ICC) e Mann-Whitney (α = 5%). A média de idade da amostra foi de 25,9 anos (± 4,7) e 50,9% (n = 59) eram do sexo masculino. Quando as coordenadas foram avaliadas, uma baixa correlação entre as imagens foi obtida (ICC <0,4). Das 27 medidas propostas, 77,7% (n = 21) indicaram concordância entre as imagens nas duas vistas (p> 0,05). Uma comparação de ls-g, sa-ec, pa-ec, slb-ec, sba-sa e slb-sa mostrou discordância entre as imagens. Portanto, há concordância entre as medidas faciais nas imagens em norma frontal e lateral, exceto para ls-g e para as distâncias entre os pontos das orelhas.Research, Society and Development2021-05-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1479510.33448/rsd-v10i5.14795Research, Society and Development; Vol. 10 No. 5; e27610514795Research, Society and Development; Vol. 10 Núm. 5; e27610514795Research, Society and Development; v. 10 n. 5; e276105147952525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/14795/13385Copyright (c) 2021 Tainá Nascimento Falcão; Yanka Barbosa Alves; Lidiane Gonçalves do Nascimento; Rachel Lima Ribeiro Tinoco; Laíse Nascimento Correia Lima; Carlos Eduardo Palhares Machado; Bianca Marques Santiagohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessFalcão, Tainá NascimentoAlves, Yanka Barbosa Nascimento, Lidiane Gonçalves doTinoco, Rachel Lima RibeiroLima, Laíse Nascimento CorreiaMachado, Carlos Eduardo PalharesSantiago, Bianca Marques2021-05-17T18:20:49Zoai:ojs.pkp.sfu.ca:article/14795Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:35:48.100918Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Photoanthropometry in forensics: Comparison of facial images with frontal and lateral views Fotoantropometría con finalidad forense: Análisis facial comparativo entre imágenes estándar frontal y lateral Fotoantropometria para fins forenses: Análise facial comparativa entre imagens em norma frontal e lateral |
title |
Photoanthropometry in forensics: Comparison of facial images with frontal and lateral views |
spellingShingle |
Photoanthropometry in forensics: Comparison of facial images with frontal and lateral views Falcão, Tainá Nascimento Odontología Forense Face Fotografías. Forensic Dentistry Face Photographs. Odontologia Forense Face Fotografias. |
title_short |
Photoanthropometry in forensics: Comparison of facial images with frontal and lateral views |
title_full |
Photoanthropometry in forensics: Comparison of facial images with frontal and lateral views |
title_fullStr |
Photoanthropometry in forensics: Comparison of facial images with frontal and lateral views |
title_full_unstemmed |
Photoanthropometry in forensics: Comparison of facial images with frontal and lateral views |
title_sort |
Photoanthropometry in forensics: Comparison of facial images with frontal and lateral views |
author |
Falcão, Tainá Nascimento |
author_facet |
Falcão, Tainá Nascimento Alves, Yanka Barbosa Nascimento, Lidiane Gonçalves do Tinoco, Rachel Lima Ribeiro Lima, Laíse Nascimento Correia Machado, Carlos Eduardo Palhares Santiago, Bianca Marques |
author_role |
author |
author2 |
Alves, Yanka Barbosa Nascimento, Lidiane Gonçalves do Tinoco, Rachel Lima Ribeiro Lima, Laíse Nascimento Correia Machado, Carlos Eduardo Palhares Santiago, Bianca Marques |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Falcão, Tainá Nascimento Alves, Yanka Barbosa Nascimento, Lidiane Gonçalves do Tinoco, Rachel Lima Ribeiro Lima, Laíse Nascimento Correia Machado, Carlos Eduardo Palhares Santiago, Bianca Marques |
dc.subject.por.fl_str_mv |
Odontología Forense Face Fotografías. Forensic Dentistry Face Photographs. Odontologia Forense Face Fotografias. |
topic |
Odontología Forense Face Fotografías. Forensic Dentistry Face Photographs. Odontologia Forense Face Fotografias. |
description |
Photoanthropometry quantify the facial proportions of an individual facilitating the comparison of facial patterns for human identification. The coordinates and vertical distances in pixels of the photoanthropometric landmarks on images of the same individual in frontal and profile views were analyzed and compared. A total of 116 pairs of photographs of Brazilian individuals were evaluated. The photographs were adjusted in size and rotation, and marked in the software Two-dimensional Forensic Facial Analysis System. For each face, 16 landmarks were considered: glabella (g), nasion (n), ectocanthion (ec), pronasale (prn), subnasale (sn), alare (al), cheilion (ch), upper lip (ls), lower lip (li), stomion (sto), labiomental (lm), gnathion (gn), superaurale (sa), subaurale (sba), postaurale (pa) and upper ear lobe (slb); the x- and y-coordinates of each landmark were obtained. Twenty-seven vertical distances between the points were proposed, which were measured by subtracting the values of the y-coordinate. The data were analyzed descriptively and inferentially using the Kolmogorov-Smirnov test, intraclass correlation coefficient (ICC) and Mann-Whitney test (α=5%). The mean age of the sample was 25.9 years (± 4.7), and 50.9% (n=59) were males. When the coordinates were evaluated, a low correlation was obtained between the images (ICC<0.4). Of the 27 proposed measures, 77.7% (n=21) indicated agreement between the images in the two views (p>0.05). A comparison of ls-g, sa-ec, pa-ec, slb-ec, sba-sa and slb-sa showed disagreement between the images. Therefore, there is agreement between the facial measures in the frontal and lateral images, except for ls-g and for the distances between the ear landmarks. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-05-07 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/14795 10.33448/rsd-v10i5.14795 |
url |
https://rsdjournal.org/index.php/rsd/article/view/14795 |
identifier_str_mv |
10.33448/rsd-v10i5.14795 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/14795/13385 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 10 No. 5; e27610514795 Research, Society and Development; Vol. 10 Núm. 5; e27610514795 Research, Society and Development; v. 10 n. 5; e27610514795 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
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1797052748582092800 |