Accueil
Détail de l'auteur
Auteur Emilie Yokoyama |
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la recherche
A 5-hour follow-up of the impact on ageing facial signs of some foundations in Japanese women through automatically analysed selfie pictures / Frédéric Flament in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 44, N° 4 (08/2022)
[article]
Titre : A 5-hour follow-up of the impact on ageing facial signs of some foundations in Japanese women through automatically analysed selfie pictures Type de document : document électronique Auteurs : Frédéric Flament, Auteur ; Damien Velleman, Auteur ; Eri Yamashita, Auteur ; Alexandre Nicolas, Auteur ; Emilie Yokoyama, Auteur ; Salim Chibout, Auteur ; Ruowei Jiang, Auteur ; Jeff Houghton, Auteur ; Camille Kroely, Auteur ; Matthieu Cassier, Auteur Année de publication : 2022 Article en page(s) : p. 431-439 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Apparence individuelle
Cosmétiques
Evaluation
Fond de teint
Intelligence artificielle
MaquillageIndex. décimale : 668.5 Parfums et cosmétiques Résumé : - Objective : To explore the possibility of an automatic grading algorithm to detect and quantify, from selfie pictures, the subtle changes of facial signs brought by the application of a foundation.
- Material and Methods : A total of 270 Japanese differently aged women (30–54y) living in four different Japanese cities took selfies before, immediately and 5 h after having applied their own foundation, with their own routine.
- Results : The analysis of 810 selfie pictures revealed (3 times × 270 women) that, prior to applications, all women presented a low grade of facial ageing. In most cases, the severities of less marked facial signs were detected and quantified, found affected by routine at different extents in all age-classes, but more intensely in the older age-class (45–54y) despite their more pronounced signs in bare skin status. In contrast, periorbital wrinkles were detected as more severe in all age-classes at both timing, that is, immediately and 5 h post-application as well as Nasolabial folds 5 h post-application. The amplitude of these positive or negative changes, although found of low amplitude, as decimals of the initial grades, was significantly detected.
- Conclusion : This automatic system appears apt at grading subtle changes in facial ageing signs brought by a foundation and could be a valuable help to the consumers of make-up products, in refining their individual procedure to obtain a more personalized desired facial appearance.Note de contenu : - MATERIAL AND METHODS : Subjects and conditions of privacy in the collection of smartphones' selfie pictures - Protocol - Products used - Facial signs assessed by dermatologists and by automatic grading system - Statistics
- RESULTS : Age impact on facial signs - Application of foundations - Wear of foundations - Global changes (A – C) brought by all foundations
- Table 1 : Distribution of the 270 studied Japanese women according to the four considered cities
- Table 2 : Fourteen facial signs included in actual A.I-based automatic grading system and their respective photographic grading ranges for Asian ethnicities. Signs cover four different clinical clusters: wrinkles/texture, pigmentation signs, cheek skin pores or vascular signs
- Table 3 : Average gradings of the fourteen facial signs on bare skin in the three age-classes, prior to the application of the foundation
- Table 4 : Changes in the severities of fourteen facial signs with age-classes in Japanese women measured by A.I-based automatic grading system from bare skin to 5 h wear of foundationDOI : https://doi.org/10.1111/ics.12786 En ligne : https://drive.google.com/file/d/1ht638t1v96JT7amvPNhTfaF1PykL-PgL/view?usp=shari [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38143
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 44, N° 4 (08/2022) . - p. 431-439[article]Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire Video-based paired comparison to evaluate some cosmetic products under camera movement for dynamic performance / Emilie Yokoyama in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 45, N° 4 (08/2023)
[article]
Titre : Video-based paired comparison to evaluate some cosmetic products under camera movement for dynamic performance Type de document : document électronique Auteurs : Emilie Yokoyama, Auteur ; Ghislain Francois, Auteur ; Margalith Harrar, Auteur ; Chafik Bachatene, Auteur ; Kumiko Udodaira, Auteur ; Solène Trevisan, Auteur ; Alexandre Nicolas, Auteur ; Damien Velleman, Auteur ; Frédéric Flament, Auteur Année de publication : 2023 Article en page(s) : p. 480-487 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Brillance (optique) -- Mesure
Cosmétiques
Couleur
Evaluation
Imagerie numérique
Justification de l'allégation
Maquillage
Méthodologie
StatistiquesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : - Objective : Until now, standardized evaluation of cosmetic effects was conducted mainly in still conditions such as pictures. In real life, the consumers' experience of their cosmetics' effects is dynamic and some of the benefits can be better observed under movement. In order to capture motion-related performance of cosmetics, we developed a video-based paired comparison on an online platform.
- Methods : We validated this new tool through the evaluation of eyeshadow with high light reflection and colour gradation, especially visible under motion according to the observer point of view. This formula was compared with two marketed benchmarks. The three products were applied sequentially on the eyelid of eight Japanese women. Videos were taken in standardized light, speed and face position with a rotating camera around the face. The videos were uploaded on an online secured platform and eyelid 3D effect, highlight and colour gradation were evaluated through paired comparison test by 60 Japanese women from home on their PC or tablets. Those results were compared with picture-based paired comparison by the same observers.
- Results : Video-based paired comparison provided higher discrimination of products compared to picture-based comparison.
- Conclusion : As compared to still camera acquisition, the evaluation of cosmetics based on videos is closer to real-life experience and can bring higher discrimination, especially for motion-related attributes.Note de contenu : - MATERIALS AND METHODS : Methodology - Subjects - Makeup application - Video and picture recording - Online evaluation system - Raters - Test flow - Statistical analysis
- RESULTS : User interfaceDOI : https://doi.org/10.1111/ics.12857 En ligne : https://drive.google.com/file/d/16Rs4ZcqjTn2cIyKDm5Zzc_Py_Jx0nU4a/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39878
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 45, N° 4 (08/2023) . - p. 480-487[article]Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire