Texture-based characterization of subskin features by specified laser speckle effects at λ = 650 nm region for more accurate parametric 'skin age' modelling / Ahmet B. Orun in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 39, N° 3 (06/2017)

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 39, N° 3 (06/2017) . - p. 320-326 Titre : Texture-based characterization of subskin features by specified laser speckle effects at λ = 650 nm region for more accurate parametric 'skin age' modelling Type de document : texte imprimé Auteurs : Ahmet B. Orun, Auteur ; H. Seker, Auteur ; V. Uslan, Auteur ; E. Goodyer, Auteur ; G. Smith, Auteur Année de publication : 2017 Article en page(s) : p. 320-326 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Lasers à solide Peau -- analyse Peau -- Texture Perception de l'âge Réseau bayésien Index. décimale : 668.5 Parfums et cosmétiques Résumé : OBJECTIF : The textural structure of ‘skin age’-related subskin components enables us to identify and analyse their unique characteristics, thus making substantial progress towards establishing an accurate skin age model. METHODS : This is achieved by a two-stage process. First by the application of textural analysis using laser speckle imaging, which is sensitive to textural effects within the λ = 650 nm spectral band region. In the second stage, a Bayesian inference method is used to select attributes from which a predictive model is built. RESULTS : This technique enables us to contrast different skin age models, such as the laser speckle effect against the more widely used normal light (LED) imaging method, whereby it is shown that our laser speckle-based technique yields better results. CONCLUSION : The method introduced here is non-invasive, low cost and capable of operating in real time; having the potential to compete against high-cost instrumentation such as confocal microscopy or similar imaging devices used for skin age identification purposes. Note de contenu : - MATERIALS AND METHODS : Data sets for laser-based and normal light imaging - System configuration - Laser speckle imaging - Texture analysis method - Bayresian networks - RESULTS AND DISCUSSION : Optimization of light type and texture measure - Bayesian classification results - Results of laser speckle image-based configuration DOI : 10.1111/ics.12379 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28630 [article]

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