Search results for "reconnaissance"
showing 10 items of 55 documents
Mesure du déficit de reconnaissance des émotions faciales dans la schizophrénie. Étude préliminaire du test de reconnaissance des émotions faciales (…
2015
Resume L’alteration de la cognition sociale associee a la schizophrenie, dont fait partie la perception des emotions faciales, a fait l’objet d’une recente meta-analyse qui a revele son impact majeur sur l’insertion sociale et professionnelle. Or l’utilisation de programmes de remediation cognitive portant sur le traitement des emotions faciales est freinee par un manque d’outil permettant d’identifier et de quantifier les troubles pour un sujet donne. Le test de reconnaissance des emotions faciales (TREF) permet d’evaluer la capacite a reconnaitre 6 emotions universelles (joie, colere, tristesse, peur, degout et mepris), presentees a neuf intensites d’expression s’etalant de 20 % a 100 %. …
Selection of optimal narrowband multispectral images for face recognition
2015
Face recognition systems based on ’conventional’ images have reached a significant level of maturity with some practical successes. However, their performance may degrade under poor and/or changing illumination. Multispectral imagery represents a viable alternative to conventional imaging in the search for a robust and practical identification system. Multi- spectral imaging (MI) can be defined as a ’collection of several monochrome images of the same scene, each of them taken with additional receptors sensitive to other frequencies of the visible light or to frequencies beyond the visible light like the infrared region of electro- magnetic continuum. Each image is referred to as a band or …
ChiLab4It system in the QA4FAQ competition
2017
ChiLab4It is the Question Answering system (QA) for Frequently Asked Questions (FAQ) developed by the Computer-Human Interaction Laboratory (ChiLab) at the University of Palermo for participating to the QA4FAQ task at EVALITA 2016 competition. The system is the versioning of the QuASIt framework developed by the same authors, which has been customized to address the particular task. This technical report describes the strategies that have been imported from QuASIt for implementing ChiLab4It, the actual system implementation, and the comparative evaluations with the results of the other participant tools, as provided by the organizers of the task. ChiLab4It was the only system whose score re…
Image-based detection and classification of allergenic pollen
2015
The correct classification of airborne pollen is relevant for medical treatment of allergies, and the regular manual process is costly and time consuming. An automatic processing would increase considerably the potential of pollen counting. Modern computer vision techniques enable the detection of discriminant pollen characteristics. In this thesis, a set of relevant image-based features for the recognition of top allergenic pollen taxa is proposed and analyzed. The foundation of our proposal is the evaluation of groups of features that can properly describe pollen in terms of shape, texture, size and apertures. The features are extracted on typical brightfield microscope images that enable…
Une approche structurelle pour la reconnaissance de notices bibliographiques
1995
National audience; Cet article présente un système de reconnaissance de la structure logique de notices bibliographiques en vue de la conversion rétrospective de catalogues de bibliothèques. Le système est guidé par un modèle de structures de la classe des notices, construit sur la base de spécifications détaillées par la bibliothèque. Le modèle fait intervenir aussi bien des connaissances sur la macro-structure des notices que sur la micro-structure de leur contenu. La reconnaissance de la structure d'une notice consiste à retrouver, à partir d'un flux OCR (Optical Character Recognition), sa structure logique spécifique, conformément aux descriptions du modèle. Le résultat est un flux stru…
Tracking in Presence of Total Occlusion and Size Variation using Mean Shift and Kalman Filter
2011
International audience; The classical mean shift algorithm for tracking in perfectly arranged conditions constitutes a good object tracking method. However, in the real environment it presents some limitations, especially under the presence of noise, objects with varying size, or occlusions. In order to deal with these problems, this paper proposes a reliable object tracking algorithm using mean shift and the Kalman filter, which was added to the traditional algorithm as a predictor when no reliable model of the object being tracked is found. Experimental work demonstrates that the proposed mean shift Kalman filter algorithm improves the tracking performance of the classical algorithms in c…
Évolution historique des critères de reconnaissance du statut d’État à des entités contestées
2018
The historical evolution of the criteria for recognition is only a reflection of the historical evolution of the functions that the act of recognition has fulfilled, and is fulfilling today in international law. Among the various possibilities, this contribution identifies at least 5 functions historically fulfilled by the act of recognition: co-optation, recognition, promotion, sanction, validation. Thus, the idea developed is that by virtue of the function fulfilled, the role played by different types of criteria of legitimacy, legality, effectiveness is destined to change.
Influencer e diversità della pelle
2021
Ce travail s’appuie sur une série d’entretiens semi-directifs conduits avec des patientsatteints de nævus géant congénital (une maladie dermatologique rare) et les associationsimpliquées dans leur accompagnement psycho-social. Les résultats mettent en exerguel’importance des rencontres face-à-face et de l’appartenance à un groupe de pairs dans leprocessus d’acceptation et de normalisation de la différence corporelle. L’étude montre enoutre une segmentation des pratiques et des logiques de représentation de la rareté dansles différentes arènes. L’espace associatif, en ligne et hors ligne, transpose la logique de lacoopération et le renforcement de l’expertise des usagers du système sanitaire…
L'intonaco Li Vigni nell'architettura del XX secolo a Palermo. Nuove conoscenze e applicazioni diagnostiche per la manutenzione
2013
Il saggio presenta lo studio degli intonaci formulati per imitare le pietre e i marmi naturali che si diffondono in Sicilia all’inizio del XX secolo ed evidenzia che le prime applicazioni e la diffusione delle nuove malte, anche nel resto dell’Italia, risentono delle sperimentazioni condotte in tutta l’Europa. Il contributo riassume i risultati di una rigorosa e capillare ricognizione tra i brevetti conservati presso l’Archivio Centrale dello Stato a Roma inerenti alle malte per il confezionamento dell’intonaco a “finta pietra”, ne analizza i contenuti in modo critico e pone in risalto i contatti culturali con le sperimentazioni dei materiali in atto nell’ambito dei grandi cantieri di resta…
Les extentes de la principauté savoyarde (fin XIIIe-fin XVe siècle): étude d'une source et de ses apports à la connaissance des structures agraires d…
2002
Ghislain Brunel, Olivier Guyotjeannin, Jean-Marc Moriceau; International audience