Search results for "Dermatologie"
showing 3 items of 3 documents
Development of an imaging system dedicated to the acquisition analysis and multispectral characterisation of skin lesion
2011
Visual evaluation of cutaneous lesions is the analysis the most commonly performedby dermatologists. This diagnostic is mainly done by naked eye and is based on criterionsuch as the size, shape, symmetry but principally on colour of the lesions. However, thisanalysis is subjective because it depends on the practician experience and the acquisitionconditions. We propose in this dissertation (1) the development of a multispectralcamera specifically dedicated for dermatological use. This device is based on a filterwheel composed of interferential filters and a neural network-based algorithm, generatinga hyperspectral cube of cutaneous data. This setting combines advantage of both spectrophotom…
Structure d'attachement dans la dermatite atopique
2011
Atopic dermatitis is an inflammatory skin disorder which usually appears before the age of five, and heals naturally little by little after adolescence in over 90% of cases. Why this spontaneous improvement occurs is not clearly established for this multi-factor skin disorder, for which the etiopathology has yet to be determined (immune system maturity?).There is a clear relationship between this pathology and the psyche: major psychological repercussions affecting the quality of life, aggravation or triggering of skin reactions due to stress, alleviation of lesions using psychotherapy. Observation of patterns of attachment is important in the field of psychopathology, but is not often unde…
Classification par méthodes d’apprentissage supervisé et faiblement superviséd’images multimodales pour l’aide au diagnostic du lentigo malin en derm…
2021
Carried out in collaboration with the Saint-Étienne University Hospital, this work provides additional information to help the skin diagnosis by providing new decision methods on Lentigo Maligna and Lentigo Maligna Melanoma pathologies. To this end, the modalities regularly used in clinical conditions are made available to this work and are orchestrated within a multimodal process. Among image modalities, may be mentioned the clinical photography, the dermatoscopy, and the confocal reflectance microscopy. Initially, the first steps of this manuscript focus on reflectance confocal microscopy as the work in computer diagnostic assistance is relatively underdeveloped, in particular on the dete…