An automatic procedure that grades some facial skin structural signs: agreements and validation with clinical assessments made by dermatologists / Frédéric Flament in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 41, N° 5 (10/2019)  

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 41, N° 5 (10/2019) . - p. 472-478 Titre : An automatic procedure that grades some facial skin structural signs: agreements and validation with clinical assessments made by dermatologists Type de document : texte imprimé Auteurs : Frédéric Flament, Auteur ; M. Hofmann, Auteur ; E. Roo, Auteur ; C. Raimbault-Gerard, Auteur ; B. Chuberre, Auteur ; Y. Zhang, Auteur ; R. Jiang, Auteur ; Irina Kezele, Auteur ; J. Zhang, Auteur ; E Elmozino, Auteur ; J. Coquide, Auteur ; Vincent Arcin, Auteur ; Parham Aarabi, Auteur Année de publication : 2019 Article en page(s) : p. 472-478 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caucasien(ne)s Dermatologie Etudes cliniques Evaluation Femmes Photovieillissement (dermatologie) Système de notation Vieillissement cutané Visage Index. décimale : 668.5 Parfums et cosmétiques Résumé : - OBJECTIVE : To confirm the robustness and validity of an automatic scoring system, algorithm-based, that grades the severity of nine facial signs through "selfies" smartphones pictures taken by European Caucasian women through dermatological assessments. METHODS: 157 Caucasian women from three countries (France, Germany, Spain), of different ages (20-75 years), took one "selfie" image by the frontal camera of their smartphones whereas local dermatologists photographed them with the back camera of the same smartphone. The same nine facial signs of these subjects were initially graded by these local dermatologists, using referential Skin Aging Atlases. All 314 "selfies" images were then further automatically analyzed by the algorithm. The severity of facial signs (wrinkles, pigmentation, ptosis, skin folds etc.) were statistically compared to the assessments made by the three dermatologists, taken as ground truth. - RESULTS : Highly significant coefficients of correlation (P < 0.001) were found in the three cohorts between the grades provided by the system and those from dermatologists in live. The back camera - of a better resolution than the frontal one - seems affording slightly more significant correlations. However, although significantly correlated, the signs of vascular disorders and cheek skin pores present some disparities that are likely linked to the technical diversity of smartphones or self-shootings, leading to lower coefficients of correlations. - CONCLUSION : This automatic scoring system offers a promising approach in the harmonization of Dermatological assessments of skin facial signs and their changes with age or the follow up of anti-aging treatments. Note de contenu : - Subjects - Protocol - Statistics DOI : 10.1111/ics.12563 En ligne : https://drive.google.com/file/d/15YUKd-XvjX_G9bcL0QhcIQjC6tPn3O6_/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33214 [article]

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A new procedure, free from human assessment, that automatically grades some facial skin signs in men from selfie pictures. Application to changes induced by a severe aerial chronic urban pollution / Y. Zhang in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 42, N° 2 (04/2020)  

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 42, N° 2 (04/2020) . - p. 185-197 Titre : A new procedure, free from human assessment, that automatically grades some facial skin signs in men from selfie pictures. Application to changes induced by a severe aerial chronic urban pollution Type de document : texte imprimé Auteurs : Y. Zhang, Auteur ; R. Jiang, Auteur ; Frédéric Flament, Auteur ; E Elmozino, Auteur ; J. Zhang, Auteur ; C. Ye, Auteur ; D. Amar, Auteur ; Jerome Coquide, Auteur ; S. Dwivedi, Auteur ; L. Sarda-Dutilh, Auteur ; Vincent Arcin, Auteur ; Parham Aarabi, Auteur Année de publication : 2020 Article en page(s) : p. 185-197 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Automatisation Chinois(e)s Dermatologie Etudes cliniques Hommes Intelligence artificielle Peau -- analyse Peau -- Effets de la pollution atmosphérique Pollution -- Effets physiologiques Système de classement Index. décimale : 668.5 Parfums et cosmétiques Résumé : - OBJECTIVE : These were two folds: at first, to develop an automatic grading system specifically dedicated to some facial signs of men, similar to the one previously validated on women of different ethnic ancestry and second, to assess its potential in detecting and grading the possible impacts of a severe aerial urban pollution on some facial signs of Chinese men. - METHODS : In both studies, selfie images were obtained from differently aged men. Nine facial signs were automatically graded through a specific A.I-based algorithm and clinically assessed by a panel of experts and dermatologists. Selfie pictures were taken from individual smartphones of variable optical properties. The first study, designed for developing an automatic grading system, involved three comparable cohorts of men from three different regional ancestries (African, Asian, Caucasian, 110 each) the selfie images of which were acquired under four different lighting conditions. As a second use case study, the facial signs of two cohorts of Chinese men (101 and 100, each), differently aged, regularly exposed to very different aerial urban pollution conditions (UP) were analysed by the same algorithm, selfies being taken under only one lighting condition. - RESULTS : - The new automatic grading system of facial signs suits well to men, showing comparable results than that the one dedicated to women and provides data in close agreement with experts’ assessments. - In both cases (expert’s or automatic methodology), the accuracy of the scores appeared ethnic-dependent. - The applied case confirmed previous results obtained clinically, that is, that many facial signs were found of an increased severity among men exposed to a severe urban pollution, as compared to those living in a less polluted city. - In both studies, statistical agreements between the automatic grading system and expert’s assessments were reached. In some facial signs, the automatic grading system seems offering a slightly better accuracy than the assessments made by the experts. - CONCLUSION : Apart from some minor limitations, this A.I-based automatic grading system, free from human intervention, performed as well as the one previously developed in women, in close agreement with expert’s assessments. In epidemiological studies, this system offers an easy, fast, affordable and confidential approach in the detection and quantification of male facial signs. Note de contenu : - MATERIALS AND METHODS : Subjects and conditions of provacy in the collection of smartphones selfie pictures (Study 1) - Facial signs analysed by automatic grading system (Studies 1 and 2) - Evaluation and grading of facial skinageing signs (Studies 1 and 2) - Principle of development of an automatic detection of facial signs from smartphone photographs (Study A) - Training and evaluation of the robustness of the automatic scoring system (Study 1) - Applied case on clinical impact of aerial urban pollution (UP in Chinese men (Study 2) - Statistics (Studies 1 and 2) - RESULTS : Prediction potential of the automatic scoring system (Study 1) - Assessment of UP clinical impacts in Chinese men by automatic grading system (Study 2) - Answers fromthe questionnaire of Study 2) DOI : https://doi.org/10.1111/ics.12602 En ligne : https://drive.google.com/file/d/1EjjDjnL74zFGn5OriVSfvKaqQN35bOVe/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34509 [article]

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A new procedure, free from human assessment that automatically grades some facial skin structural signs. Comparison with assessments by experts, using referential atlases of skin ageing / Ruowei Jiang in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 41, N° 1 (02/2019)  

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 41, N° 1 (02/2019) . - p. 67-78 Titre : A new procedure, free from human assessment that automatically grades some facial skin structural signs. Comparison with assessments by experts, using referential atlases of skin ageing Type de document : texte imprimé Auteurs : Ruowei Jiang, Auteur ; Irina Kezele, Auteur ; Alex Levinshtein, Auteur ; Frédéric Flament, Auteur ; Jingyi Zhang, Auteur ; Eric Elmoznino, Auteur ; Junwei Ma, Auteur ; He Ma, Auteur ; Jerome Coquide, Auteur ; Vincent Arcin, Auteur ; Esohe Omoyuri, Auteur ; Parham Aarabi, Auteur Année de publication : 2019 Article en page(s) : p. 67-78 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Africain(ne)s Afro-américain(e)s Asiatiques Caucasien(ne)s Etudes cliniques Expression du visage Vieillissement cutané Index. décimale : 668.5 Parfums et cosmétiques Résumé : - OBJECTIF : Développer un système automatique qui quantifie la sévérité de certains signes du visage à partir de photographies de type 'selfies' pris par des femmes d'origine ethnique et d'âge différents. - METHODES : 1140 femmes de trois ethnies différentes (Afro-Américaines, Asiatiques, Caucasiennes), d’âges différents (18–80 ans) ont pris des selfies sous différentes conditions d’éclairage et d'expressions faciales. Un logiciel dédié a été développé, basé sur un réseau de convolution neuronal et intégrant les données d'annotations utilisant les Atlas de Vieillissement Cutané. Ce système quantifie immédiatement la sévérité de 9 signes faciaux selon l'ethnie déclarée par le sujet. Ces scores ont été confrontés à ceux de 12 experts et dermatologistes soit à partir des 'selfies' ou en conditions réelles sur un groupe plus restreint de femmes. - RESULTATS : Le système apparaît faiblement influencé par les conditions d’éclairage et les expressions faciales (coefficients de variation de l'ordre de 10–13%) et conduit à des valeurs comparables de celles des experts, voire même de meilleure reproductibilité dans certains cas. - CONCLUSION : Ce système de scorage automatique, encore en développement, semble offrir une nouvelle approche dans la description quantitative de signes du visage, indépendante de l’œil humain, dans de nombreuses applications, comme la personnalisation, à visée cosmétique ou dermatologique, dans le suivi de certaines stratégies médicales de l'antivieillissement cutané. Note de contenu : - MATERIALS AND METHODS : Subjects and conditions of privacy for smartphones 'selfies' pictures collection - Clinical standardized pictures dataset - Evaluation and grading of facial skin ageing signs - Training and evaluation of the robustness of the automatic scoring system - Influence of facial expressions - Correlation with expert's assessments and statistics - Correlation with experts' assessments in live condition - RESULTS : Prediction potential of the automatic scoring system - Influence of facial expressions - Experts’ panel consensus and variability DOI : 10.1111/ics.12512 En ligne : https://drive.google.com/file/d/1F_NrvizfGb2nr_hc1cz38c-rFpwwG3Kh/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32098 [article]

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