Dissertations / Theses on the topic 'Lecture – Utilisation de la couleur'
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Mijiayawa, Mékano M. "Utilisation de l'information de mouvement pour amélioration de la définition des images de télévision couleur." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37608039b.
Full textYousef, Hussam. "Utilisation de l'imagerie numérique couleur et modélisation de l'interaction lumière-peau pour l'évaluation de produits cosmétiques." Thesis, Reims, 2012. http://www.theses.fr/2012REIMS010.
Full textThe objectification of cosmetic products is a major concern for both manufacturers and consumers. Most evaluations methods still very subjective due to the complex visual modifications. We propose to use the techniques of visual rendering and 3D facial synthesis to develop a system of quantitative assessment of cosmetic effects. This thesis consists of three parts. The first part presents a device for human face 3D scanning based on a structured light technique. The projected pattern is composed of colored strips separated by black gaps. Unlikely to the classic approaches, these strips are treated as blocks in the captured image. This procedure makes the proposed system more robust against the variation of the ambient conditions. The second part uses the BSSRDF of Jensen to model the interaction between light and skin. This model allows the extraction of quantitative parameters to assess the optical properties of the skin. The 3D acquisition system is then enhanced in order to be able to quantitatively evaluate the complex effects of the cosmetic product. Another qualitative evaluation approach is also proposed using the 3D rendering. The third part is devoted to experiment results conducted in collaboration with a cosmetic industry. The system is particularly effective to quantitatively evaluate the cosmetic effects which are usually difficult to grasp for an expert observer. Using the work of this thesis a patentable system to evaluate the cosmetic effects is proposed
Jantet-Keravel, Francine. "Influence de l'environnement graphique et colore sur la perception des formes : application a la lecture sur ecran couleur." Paris 5, 1991. http://www.theses.fr/1991PA05S007.
Full textNavarro, Marion. "Utilisation de la tablette digitale pour réduire les difficultés dans l'apprentissage de la lecture." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE2088.
Full textThe main objective of this thesis work is to discuss the place of the touch-screen tablet in an adapted and targeted teaching system with children detected at risk of subsequent difficulties in reading. To meet this objective, we have presented two main axes, based on the results of the scientific literature. An experimental axis, made up of three studies, allowed us to measure the impact of a specific intensive and individual training, via the touch-screen tablet, on the performances in written words identification of poor (pre)readers in Kindergarten and First Grade. More precisely, the results of the longitudinal follow-up of the aforementioned students seem to be in favor of an improvement of the phonological awareness and the grapho-syllabic treatment. The second axis aims to highlight the importance of ergonomic criteria for the development of two edutainment apps. The results of the subjective evaluations identify points that requiring additional work, which may hinder the processing of crucial information for the learning of reading
Melançon, Danielle. "Utilisation des pictogrammes au niveau de la maternelle." Master's thesis, Université Laval, 1986. http://hdl.handle.net/20.500.11794/29190.
Full textTeigné, Elodie Rousteau Gabriel. "Utilisation de l'expression scénique en orthophonie enquête auprès des professionnels /." [S.l.] : [s.n.], 2007. http://castore.univ-nantes.fr/castore/GetOAIRef?idDoc=19491.
Full textGourichon, Stéphane. "Utilisation d'un compas visuel pour la navigation d'un robot mobile." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2004. http://tel.archives-ouvertes.fr/tel-00011128.
Full textDes modèles issus d'expériences sur des abeilles ont montré qu'une approche minimaliste suffit pour une tâche de retour au nid à orientation connue. Nous analysons les conséquences d'une erreur d'orientation et les modes de fonctionnement dégradés qui restent possibles mais insatisfaisants.
Nous élaborons une méthode originale et minimale de réorientation, appelée « compas visuel ». L'observation de trois panoramas d'orientation connue et une approximation au premier ordre suffisent pour mémoriser de quoi s'orienter. Nous comparons le compas visuel avec une seconde méthode plus simple et approximative. Nous montrons formellement et expérimentalement que leur précision est suffisante pour naviguer et que leur champ d'action peut être arbitrairement étendu par construction d'une carte cognitive.
Remeau, Delphine. "Les marbres colorés dans la Vallée du Rhône à l'époque romaine : approvisionnement et utilisation. L'exemple d'Arles." Thesis, Montpellier 3, 2015. http://www.theses.fr/2015MON30067.
Full textArles, roman right colony, inherited the control of the river the Rhône, after Pompei’s defeat against Cesar, important delivery route of any kind of supply coming from the Mediterranean area. Trading business increasing Arles welcomed a lot of navicularii to manage it. And also the growing native population helped Arles to become a privilege actor. Through the monument the great city of Arles showed coloured marbles on the wall and pavement. This type of raw material was a symbol of power and wealth which was diffused in every province of the empire. In this context, we will study the use and the supply of the marble in Arles through terrestrial archaeological sites and elements discovered in the river Rhone.Concerning this, we will study every pieces of coloured marble found in the high Roman Empire and late Antiquity period. For every sites we will determined the distribution and the proportion as well as the different ways they were shaped. Then we will analyse chronologically the use of these elements in the “domus” decoration and in public building.Last but not least we will link it together with the routing of the supplier in the Rhône valley at the Roman Empire period
ANTOINE, DAVID. "Utilisation des mesures spatiales de la couleur de l'ocean pour l'estimation de la production primaire et la modelisation du cycle du carbone dans l'ocean." Paris 6, 1995. http://www.theses.fr/1995PA066009.
Full textCharria, Guillaume. "Influence des ondes de Rossby sur le système biogéochimique de l'Océan Atlantique Nord : utilisation des données couleur de l'eau et d'un modèle couplé physique/biogéochimie." Toulouse 3, 2005. http://www.theses.fr/2005TOU30268.
Full textThe marine phytoplankton in the ocean represents only less than 1% of global biomass. Phytoplankton performs half of all photosynthesis. This autotrophic biomass in ocean is then an essential element in the climate regulation through processes as carbon dioxide absorption during the photosynthesis. Therefore, we need to estimate precisely this biomass as well as the processes which affect it. Using remotely sensed data (altimetry and ocean colour) and a coupled physical/biogeochemical model (MERCATOR-OPA/NPZDDON), Rossby waves and their influence on phytoplankton biomass are specifically studied in the North Atlantic Ocean. Their features and their influences on surface chlorophyll concentrations were analysed. Through the different mechanisms identified, we estimated that these waves can induce local increases from 60% to 150% of the estimated primary production
Sautot, Jean Pierre. "Utilisation de l'orthographe et d'autres indices dans la construction du sens en lecture : étude de la variation de la réception chez des lecteurs enfants (de 6 à 15 ans) et adultes." Grenoble 3, 2000. http://www.theses.fr/2000GRE3A003.
Full textBergeron, Mylène. "Utilisation des contextes semantique et syntaxique chez des patients dements de type Alzheimer : evidence à partir de taches de lecture et d'epellation." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61343.
Full textPOIREY, REMY. "Utilisation de la genetique reverse et du systeme double-hybride pour l'analyse fonctionnelle de nouveaux cadres de lecture chez la levure saccharomyces cerevisiae." Université Louis Pasteur (Strasbourg) (1971-2008), 2000. http://www.theses.fr/2000STR13126.
Full textBosc, Emmanuel. "Variations saisonnières et interannuelles de la biomasse phytoplanctonique et de la production primaire en Méditerranée : évaluation et utilisation des données satellitales de couleur de l'océan (SeaWiFs, Polder et OCTS)." Toulon, 2002. http://www.theses.fr/2002TOUL0008.
Full textDoron, Maeva. "Utilisation des données de couleur de l'océan pour estimer les propriétés optiques des eaux côtières : caractérisation du signal marin dans le proche infrarouge pour les eaux turbides, développement d'algorithmes semi-analytiques, validation avec des données satellitaires." Paris 6, 2007. http://www.theses.fr/2007PA066423.
Full textFor human societies, the coastal ocean is very important for economical (harvest of the sea resources), ecological (water quality) and social (pressure of urbanization) reasons. Spaceborne ocean color sensors, owing to their spatial and temporal coverage, should provide powerful tools for monitoring of coastal zones. The present thesis is dedicated to the interpretation of remotely sensed ocean color data captured above coastal waters. Three different aspects, theoretical and applied, are studied: 1) the variations of the marine signal in the near infrared, which is crucial to perform atmospheric corrections above turbid waters, 2) the inversion of ocean color data to retrieve physical and biogeochemical properties, with the development of algorithms validated in coastal waters, 3) the elaboration and validation of an algorithm allowing the estimation of water transparency from space, the water transparency being an indicator of water quality. The general approach is to focus on the current knowledge of the optical properties of the substances, and to extract as analytically as possible the information encapsulated in the data, according to the published relationships between those properties and the radiometric data. At each step, measurements such as bio-optical data gathered in situ in various environments, water transparency data, radiative transfer simulations, or remotely sensed data allowed to test systematically the robustness and validity of the algorithms. This work paves the way to further use remotely sensed ocean color data above coastal waters, through development of semi-analytical algorithms
Parisse, Christophe. "Reconnaissance de l'écriture manuscrite : analyse de la forme globale des mots et utilisation de la morpho-syntaxe." Paris 11, 1989. http://www.theses.fr/1989PA112301.
Full textMachine recognition of handwriting: global analyses of word shapes and morpho-syntactic evaluation,Machine recognition of handwriting aims at a goal which is not far-removed from human reading. The study of reading may thus provide uscful hints to as yet unsuccessful computer recognition of unrestricted handwriting. A writer oriented system (for a 10000 word vocabulary) has been developed in this framework and tested. It operates on the basis of interaction of full-word shape analyses and syntactic and lexical-semantic processing. The system comprises:• 1 mage transformations designed so as to enable global shape comparisons of scanned words. These transformations reOect the global shape of word images and not their internal structure thereby permitting to conduct shape comparisons within a given unrestricted handwriting. • A syntactic parser based on a markovian mode! whose rules emerge through training. Lt checks the grammaticality of candidate sentences which result from shape comparisons. • Semantic weighting of sen. Tences which are found grammatical. Lt is based on computing lexical co-occurrences in thematically organized textual data-bases
Demené, Charlie. "Cartographie vasculaire et fonctionnelle du cerveau par échographie Doppler ultrarapide chez le petit animal et le nouveau-né." Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCC119.
Full textThis thesis focus on the application of Ultrafast Doppler to the imaging of vascular networks and particularly to the cerebral network. First, we made it even more sensitive and robust against motion artefacts with a new signal processing approach based on singular value decomposition to remove clutter signal. Then we made the most of this gain in sensitivity by developing a 3D reconstruction technique of the vascular networks called Ultrafast Doppler Tomography (UFD-T) This technique has first been used to image the development of tumor blood vessels in a murine model, and showed quantitative structural data could be extracted. Then this technique enabled the reconstruction of the vascular architecture in the brain of rats. Ultrafast Doppler enables als( to quantify blood flow speeds in any location of the field of view. This was used to build a parametric mapping of the vascular resistivity via Ultrafast Doppler and to reveal the cerebral hemodynamic abnormality in a resuscitation model after cardiac arrest in the rabbit, with and without ultrafast hypothermia after resuscitation. Ultrafast Doppler has also been applied to the neonate brain, enabling on the one hand an anatomic delineation of vessel with higher quality than conventional Color Doppler, on the other hand the mapping of cerebral resistivity. Last but not least, we were able to obtain the first results in neonate functional imaging, in particular during epileptic seizures. This work shows that by slightly changing radiological practice for ultrasonic imaging, it could become a modality for functional studies and patient monitoring in pediatrics and neonatal intensive care units
BERTHON, JEAN-FRANCOIS. "Evaluation de la biomasse phytoplanctonique et de la production primaire associee a partir de donnees satellitaires (couleur de l'ocean). Application a la zone tropicale au large de la mauritanie (utilisation de l'imagerie du coastal zone color scanner)." Paris 6, 1992. http://www.theses.fr/1992PA066042.
Full textPasquier, Daniel. "Evaluation de la personnalité à l'aide des questionnaires auto-descriptifs : approche critique du postulat de la stabilité de l'image de soi : pour une autre utilisation et une autre lecture du modèle des cinq facteurs." Rouen, 2007. http://www.theses.fr/2007ROUEL584.
Full textThe psychologist use self-reported questionnaires based on the five factors model, FFM. This a-theoretical model, supposed to describe in an exhaustive way the personality using five orthogonal bipolar factors, would be stable in time and social space by the fact of the genetic origin of the differences. After a review we show that the structure of FFM does not answer the criterion of orthogonality, nor of stability because of its sensitivity to the contexts of making. Experiments confirm that additional information with the instruction of a Q-sort image of oneself make it possible to direct the choices in the direction induced by this information, with a personnologic share of 10% of the variance. Beyond variability, we emphasizes the existence of transverse scripts ordering the items in implicatives sequences. We finishe by elaboration of a model dynamic which takes into account the social regard of oneself, the management of impression and the emotional vulnerability state/trait
Vermassen, Aurore. "Adaptation de Staphylococcus xylosus à la matrice carnée, impact des composés nitrosés et utilisation des sources de fer." Thesis, Clermont-Ferrand 2, 2014. http://www.theses.fr/2014CLF22535/document.
Full textStaphylococcus xylosus is used as starter culture in meat product for its role in the development of flavor and color. S. xylosus is characterized for its technological properties in vitro. However, the molecular mechanisms for its adaptation in meat with or without nitrate and nitrite, frequently added in meat product, remained unknown. Global transcriptomic approaches were carried out to determine the molecular mechanisms. S. xylosus modulated the expression of 55 % of the genes to survive in a meat model. Many genes encoding proteins involved in glucose and gluconate catabolisms and peptidases were up expressed. In parallel, a lot of genes involved in amino acids synthesis were down regulated, probably due to their availability in the meat model. The meat model is a rich medium composed of various substrates and S. xylosus adapted its physiology through the transcriptional regulators CcpA and CodY. Finally, it responded to salt added in the meat model in overexpressing genes involved in mechanisms of osmoprotection, Na + and H + extrusion. S. xylosus modulated the expression of 24 % of the genes in presence of nitroso compounds in the meat model. These compounds generated a nitrosative stress. S. xylosus responded to this stress by over expressing genes involved in iron homeostasis through the derepression of the regulator Fur. It over expressed also genes encoding antioxidant enzymes through the derepression of the regulator PerR. Moreover, it over expressed genes involved in DNA and proteins repairs. Meat is rich in hemic and non-hemic iron. S. xylosus is able to grow in presence of ferritin, transferrin and potentially hemoproteins. Ferritin is one of preferential iron sources. An operon encoding potentially a membranous complex involved in oxydo-reduction reactions has been identified. A strain defective in the first gene of the operon confirmed that this complex could contribute to the iron acquisition from ferritin. This study revealed a global change in the gene expression of S. xylosus in the meat model; it highlighted ability of S. xylosus to mitigate nitrosative or osmotic stress, it characterised for the first time the capacity of a Staphylococcus to acquire ferritin-iron
Napper, Nick Louis. "An investigation into the impact of visual aids in post-compulsory education." Thesis, University of Exeter, 2014. http://hdl.handle.net/10871/16561.
Full textAndré, Laury Nuria. "Formes et fonctions du paysage dans l'épopée hellénistique et tardive." Thesis, Lyon, École normale supérieure, 2012. http://www.theses.fr/2012ENSL0779.
Full textThe undertaking of this work is to analyze the forms and functions that the landscape can take in a corpus of posthomeric epic texts. The Argonautica of Apollonius of Rhodes and its late anonymous rewriting The Orphic Argonautica, the Posthomerica of Quintus Smyrnaeus, the Ilioupersis of Triphiodorus, and The Dionysiaca of Nonnus Panopolitanus provide us with a fruitful field of investigation for the analysis of the literary representations of the landscape as transhistorical. Firstly, our texts operate one transformation of the archaic epic landscape that is first the image of the world with which it merges (the conformity placed between shield, island, and world) by separating the landscape from this equation and giving it greater autonomy. The world is a mosaic of autonomous landscapes that gain texture as they take on a dimension of identity. The polymorphism of the landscape then gives its moving texture to the world of the ancient Greeks : the plastic and artist dimension is borrowed by the Epic text to put into words the images of the world, which reveal epic landforms. A variety of landscape patterns emerges and opens the literary intertext to the heterogeneity of artistic forms. From this fusion of process and forms, a singularity arises, a singularity particularly antique of the perception and the translation of the landscape : wonder. Landscape and wonder mingle so narrowly as to substitute one for the other : this is a possible definition of the ancient landscape from the Hellenistic period. But the landscape as thus identified and constructed also belongs to the world the image of which it contributes to form. It is clearly localized in a geographical perspective : the landscape becomes a vivid picture of the world and the former offers the latter its identity by its unique topical characteristics. It is a form of regional identification and it is sometimes confined to the vernacular. The landscape becomes an instrument for intellectual and cultural promotion. Between formal diversity and local singularity, the landscape travels between fiction and reality : its construction methods borrow from the literary and artistic and then extend to nature. The epic genre, characterised by innovative intertextuality, makes the landscape the image of the process of transposition and adaptation. As a manifestation of the exercise of a singular and then a collective ancient subjectivity, the landscape is an instrument for measuring the unfolding of the imagination at work in the complex process of literary reception and cultural transmission ; the ancient landscape between transmission and invention, opens itself up to the everyday and social experience. Its ancient existence is effective
Guillemette, David. "Utilisation de textes anciens dans l'enseignement du calcul différentiel." Mémoire, 2009. http://www.archipel.uqam.ca/2568/1/M11171.pdf.
Full textBoisvert, Maryse. "Utilisation de stratégies en lecture/écriture par des élèves du collégial après un enseignement explicite." Mémoire, 2008. http://www.archipel.uqam.ca/1906/1/M10655.pdf.
Full textAlioum. "Utilisation d’une approche écologique pour l’analyse des résultats d'évaluations standardisées : cas des performances en lecture aux tests PASEC2014-Cameroun." Thesis, 2020. http://hdl.handle.net/1866/25218.
Full textThe purpose of this study is to support the use of an ecological approach for the analysis of standardized data assessment. This study is implimented by Latent Classes Analysis (ACL) with covariables on the test reading data of the « Programme d’Analyse des Systèmes Éducatifs de la CONFEMEN » (PASEC) french-speaking students of 6th grade primary school in Cameroon (N = 617) and shows how this approach can change the way we interpret the results of this study. Indeed, Standardized Large Scale Assessments (ELE) programs aim to appraise the learning and skills of individuals and provide decision support data in many countries (Hogan, 2017 ; Loye, 2011; Wagemaker, 2014). In the context of these ELEs, performance is estimated solely based on the responses provided by the candidates and therefore of their cognitive abilities (Zumbo et al, 2015). Yet a growing body of research suggests viewing test performance as a phenomenon that occurs in an interconnected network of knowledge, individual characteristics, and particular contexts (McNamara, 2007 ; McNamara and Roever, 2006 ; Mislevy, 2018 ; Zumbo et al. , 2015). The ecological approach, which is part of this perspective, is interested in the contextual, social and cultural hypotheses when estimating the performance of a test (McNamara and Roever, 2006 ; McNamara, 2007 ; Zumbo et al, 2015). Our results highlight reading performance ecologies that vary by region. In each of these ecologies, the reading performance profiles that emerge depend on the characteristics of the students and the characteristics of the school and out-of-school environments in which they operate. We therefore put the emphasis on the situated character of the performances on a test allowing a fairer reading of the performances of the different candidates. In doing so, we formulate recommendations that take into account the contextual realities of applicants, unlike the standard recommendations often made following ELE results.
Croisetière, Catherine. "Accompagner les élèves du troisième cycle du primaire dans leur utilisation des stratégies de lecture : les effets d'un enseignement explicite." Mémoire, 2011. http://www.archipel.uqam.ca/4002/1/M11875.pdf.
Full textSautot, Jean-Pierre. "UTILISATION DE L'ORTHOGRAPHE ET D'AUTRES INDICES DANS LA CONSTRUCTION DU SENS EN LECTUREÉtude de la variation de la réception chez des lecteurs enfants (de 6 à 15 ans) et adultes." Phd thesis, 2000. http://tel.archives-ouvertes.fr/tel-00365321.
Full textGosselin-Lavoie, Catherine. "Lecture de livres bilingues par six duos parent-enfant allophones du préscolaire : description des lectures et des interactions et relations avec l’acquisition du vocabulaire." Thèse, 2016. http://hdl.handle.net/1866/16439.
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