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Artykuły w czasopismach na temat "Analyses d’images"
Periou, Baptiste, Yasmine Baba Amer i François Jérôme Authier. "Méthode automatisée d’analyse d’images appliquée à la dermatomyosite". médecine/sciences 35 (listopad 2019): 36–38. http://dx.doi.org/10.1051/medsci/2019239.
Pełny tekst źródłaSimard, Daphnee, Tatiana Molokopeeva i Yan Qing Zhang. "Production d’autoreformulations autoamorcées par des apprenants adultes du français et capacité de mémoire de travail". Canadian Journal of Applied Linguistics 24, nr 1 (22.01.2021): 138–58. http://dx.doi.org/10.37213/cjal.2021.28971.
Pełny tekst źródłaBrandão, Ludmila. "Des rumeurs d’une culture mondialisée. Réflexions sur le film Historias Mínimas". Cinémas 18, nr 2-3 (4.08.2008): 143–63. http://dx.doi.org/10.7202/018556ar.
Pełny tekst źródłaApparicio, Philippe, Thi-Thanh-Hiên Pham, Anne-Marie Séguin i Shawn M. Landry. "Équité environnementale et distribution spatiale de la végétation à l’intérieur et autour des îlots résidentiels à Montréal : une double iniquité ?" Cahiers de géographie du Québec 57, nr 161 (5.05.2014): 215–37. http://dx.doi.org/10.7202/1024902ar.
Pełny tekst źródłaBasaglia-Pappas, Sandrine, Romane Bourgey, Anne Boulangé, Pauline Amiot, Élise Champeaux, Aurelia Rendón de la Cruz, Laurent Lefebvre i Isabelle Simoes Loureiro. "Multimodal Semantic Knowledge Assessment –Standard and Preliminary Data in Semantic Variant Primary Progressive Aphasia and Alzheimer’s Disease in Comparison with Vascular Aphasia". L’Année psychologique Vol. 123, nr 3 (27.09.2023): 443–67. http://dx.doi.org/10.3917/anpsy1.233.0443.
Pełny tekst źródłaCoster, M., i J. L. Chermant. "Analyse d’images et céramiques". Revue de Métallurgie 97, nr 2 (luty 2000): 151–61. http://dx.doi.org/10.1051/metal/200097020151.
Pełny tekst źródłaFabiani, Jean-Louis. "Images d’images". Protée 31, nr 2 (9.08.2004): 57–61. http://dx.doi.org/10.7202/008754ar.
Pełny tekst źródłaNero, Marcelo Antonio, Rodrigo Amaral Lapa i Simone Sayuri Sato. "Proposta de uma metodologia economica para o desenvolvimento de SIG 3D". Revue Française de Photogrammétrie et de Télédétection, nr 198-199 (21.04.2014): 71–77. http://dx.doi.org/10.52638/rfpt.2012.74.
Pełny tekst źródłaChermant, J. L. "Analyse d’images et morphologie mathématique : une introduction". Revue de Métallurgie 91, nr 2 (luty 1994): 201–10. http://dx.doi.org/10.1051/metal/199491020201.
Pełny tekst źródłaMissiaen, J. M., i J. M. Chaix. "Caractérisation par analyse d’images de l’homogénéité dans des matériaux frittés." Revue de Métallurgie 90, nr 9 (wrzesień 1993): 1134. http://dx.doi.org/10.1051/metal/199390091134.
Pełny tekst źródłaRozprawy doktorskie na temat "Analyses d’images"
Plougonven, Erwan Patrick Yann. "Lien entre la microstructure des matériaux poreux et leur perméabilité : mise en évidence des paramètres géométriques et topologiques influant sur les propriétés de transport par analyses d’images microtomographiques". Thesis, Bordeaux 1, 2009. http://www.theses.fr/2009BOR13847/document.
Pełny tekst źródłaThe objective of this work is to develop 3D image analysis tools to study the micronic pore structure of porous materials, obtained by X-ray microtomography, and study the relation between microgeometry and macroscopic transport properties. From a binarised image of the pore space, a complete sequence of processing (artefact filtration, skeletonisation, watershed, etc. ) is proposed for positioning and delimiting the pores. A comparison with available methods is performed, and a methodology to qualify the robustness of these processes is presented. The decomposition is used, firstly for extracting geometric parameters of the porous microstructure and studying the relation with intrinsic permeability; secondly to produce a simplified pore network on which to perform numerical simulations
Robinault, Lionel. "Mosaïque d’images multi résolution et applications". Thesis, Lyon 2, 2009. http://www.theses.fr/2009LYO20039.
Pełny tekst źródłaThe thesis considers the of use motorized cameras with 3 degrees of freedom which are commonly called PTZ cameras. The orientation of such cameras is controlled according to two angles: the panorama angle (θ) describes the degree of rotation around on vertical axis and the tilt angle (ϕ) refers to rotation along a meridian line. Theoretically, these cameras can cover an omnidirectional field of vision of 4psr. Generally, the panorama angle and especially the tilt angle are limited for such cameras. In addition to control of the orientation of the camera, it is also possible to control focal distance, thus allowing an additional degree of freedom. Compared to other material, PTZ cameras thus allow one to build a panorama of very high resolution. A panorama is a wide representation of a scene built starting from a collection of images. The first stage in the construction of a panorama is the acquisition of the various images. To this end, we made a theoretical study to determine the optimal paving of the sphere with rectangular surfaces to minimize the number of zones of recovery. This study enables us to calculate an optimal trajectory of the camera and to limit the number of images necessary to the representation of the scene. We also propose various processing techniques which appreciably improve the rendering of the mosaic image and correct the majority of the defaults related to the assembly of a collection of images which were acquired with differing image capture parameters. A significant part of our work was used to the automatic image registration in real time, i.e. lower than 40ms. The technology that we developed makes it possible to obtain a particularly precise image registration with an computation time about 4ms (AMD1.8MHz). Our research leads directly to two proposed applications for the tracking of moving objects. The first involves the use of a PTZ camera and a spherical mirror. The combination of these two elements makes it possible to detect any motion object in the scene and to then to focus itself on one of them. Within the framework of this application, we propose an automatic algorithm of calibration of the system. The second application exploits only PTZ camera and allows the segmentation and the tracking of the objects in the scene during the movement of the camera. Compared to the traditional applications of motion detection with a PTZ camera, our approach is different by the fact that it compute a precise segmentation of the objects allowing their classification
Madani, Ikram. "Plasticité du système racinaire du blé en condition de carence en N, P ou K révélée par développement d'une méthodologie de phénotypage intégrant les poils absorbants". Electronic Thesis or Diss., Université de Montpellier (2022-....), 2022. http://www.theses.fr/2022UMONG059.
Pełny tekst źródłaLow macroelement availability in most cultivated soils severely limits crop yields in the absence of fertilization. A better understanding of the adaptation of root systems to nutrient-poor soils, and the exploitation of existing genetic diversity in this field, between species and/or varieties, are likely to contribute to the development of new cultivars and new agronomic practices allowing to limit costly and environmentally polluting chemical fertilization inputs. The architecture of the root system and the production of root hairs at the root-soil interface are major determinants of the capacity of the root system to explore the soil and take up nutrient ions. To date, no methodology has been available to phenotype root hairs in a root system considered entirely. In this thesis, I developed a methodology for global, integrative phenotyping of root systems, including root hairs. An original rhizobox-type device was developed, allowing to acquire high resolution images, for which I developed a computerized analysis procedure associating the free software Ilastik for image segmentation, and the softwares WinRHIZOTM and ImageJ for the analysis of global traits characterizing the root development. After validation of the methodology, the root systems of two wheat genotypes, a cultivated emmer wheat cultivar (T.t. dicoccum, cv Escandia), ancestor of durum wheat, and a landrace of durum wheat (T.t. durum, cv Oued Zenati) were compared with each other and with respect to their response to low phosphate (P), nitrogen (N) or potassium (K) availability. In 15-day-old seedlings (roots ca. 30 cm long), N, P or K deficiencies differentially affected plant growth (biomass allocation between roots and leaves, and preferential development of the root system). All three deficiencies were found to result in an increase in the total surface area of the root system, resulting primarily from an increase in the total surface area of root hairs over the entire root system (reflecting an increase in the density and/or length of hairs over the entire system). The rate of increase in total absorptive root hair area was variable between the two varieties and among limiting elements, stronger under N deficiency conditions in the emmer wheat, and P deficiency in the landrace. All the root responses analyzed, including or not the root hairs, revealed a greater developmental plasticity in response to nutrient deficiency in the ancestral variety. A perspective opened by this work would be to compare this plasticity in different wheat varieties recapitulating the domestication and improvement of this species. I also show that the methodology I have developed can be used to phenotype root responses to biotic conditions (presence of Plant Growth Promoting Rhizobacteria)
Boucher, Arnaud. "Recalage et analyse d’un couple d’images : application aux mammographies". Thesis, Paris 5, 2013. http://www.theses.fr/2013PA05S001/document.
Pełny tekst źródłaIn the scientific world, signal analysis and especially image analysis is a very active area, due to the variety of existing applications, with issues such as file compression, video surveillance or medical image analysis. This last area is particularly active. The number of existing devices and the number of pictures taken, cause the production of a large amount of information to be processed by practitioners. They can now be assisted by computers.In this thesis, the problem addressed is the development of a computer diagnostic aided system based on conjoint analysis, and therefore on the comparison of medical images. This approach allows to look for evolutions or aberrant tissues in a given set, rather than attempting to characterize, with a strong a priori, the type of fabric sought.This problem allows to apprehend an aspect of the analysis of medical file performed by experts which is the study of a case through the comparison of evolutions.This task is not easy to automate. The human eye performs quasi-automatically treatments that we need to replicate.Before comparing some region on the two images, we need to determine where this area is located on both pictures. Any automated comparison of signals requires a registration phase, an alignment of components present on the pictures, so that they occupy the same space on the two images. Although the characteristics of the processed images allow the development of a smart registration, the projection of a 3D reality onto a 2D image causes differences due to the orientation of the tissues observed, and will not allow to analyze a pair of shots with a simple difference between images. Different structuring of the pictures and different deformation fields are developed here to efficiently address the registration problem.After having minimized the differences on the pictures, the analysis of tissues evolution is not performed at pixels level, but the tissues themselves, as will an expert. To process the images in this logic, they will be reinterpreted, not as pixels of different brightness, but as patterns representative of the entire image, enabling a new decomposition of the pictures. The advantage of such a representation is that it allows to highlight another aspect of the signal, and analyze under a new perspective the information necessary to the diagnosis aid.This thesis has been carried out in the LIPADE laboratory of University Paris Descartes (SIP team, specialized in image analysis) and in collaboration with the Society Fenics (designer of diagnosis aid stations in the analysis of mammograms) under a Cifre convention. The convergence of the research fields of those teams led to the development of this document
Lelièvre, Stéphanie. "Identification et caractérisation des frayères hivernales en Manche Orientale et la partie sud de la mer du Nord : Identification des oeufs de poissons, cartographie et modélisation des habitats de ponte". Nantes, 2010. http://www.theses.fr/2010NANT2110.
Pełny tekst źródłaA better knowledge and monitoring of principal commercial fish spawning grounds have become necessary in the North Sea. The efficiency of CUFES was proved by sampling pelagic fish eggs in winter in Eastern Channel and Southern North Sea. Fish egg taxonomic identification based on visual criteria cannot always be carried out effectively. In particular, cod (Gadus morhua), and whiting (Merlangius merlangus) or flounder (Platichthys flesus) and dab (Limanda limanda) have the same range of egg diameter and similar morphologies. Alternative identification methods using molecular techniques were developed to improve the accuracy of egg taxonomic identification. First, PCR-RFLP method, then, in order to accelerate egg identification, the use of a new laboratory imaging system, the ZooScan, able to produce high resolution images of zooplankton samples, was adapted to fish eggs and allower their automated identification using supervised learning algorithms. The location of winter spawning grounds of fishes in the Southern North Sea and the Eastern Channel was illustrated using yearly maps and analysed over the available period to define recurrent, occasional and unfavorable spawning areas. Generally, fish eggs were found over the study area, except for the North Western of the North Sea, near Scottish coasts. Important spawning areas were clearly localised along the Belgian, Dutch and Danish coasts. Habitat modelling of these fish spawning areas was carried out using both GLM (Generalised Linear Model) and QR (Regression Quantile) and associated egg abundance to physical conditions such as temperature, salinity, bedstress, chlorophyll a concentration and bottom sediment types to characterize spawning habitat conditions and predict their extent and location. The results of this approach improve the understanding of spawning grounds distribution and were discussed in the context of the protection and conservation of critical spawning grounds
PORTES, DE ALBUQUERQUE MARCelO. "Analyse par traitement d’images de domaines magnétiques". Grenoble INPG, 1995. http://www.theses.fr/1995INPG0036.
Pełny tekst źródłaBoucher, Arnaud. "Recalage et analyse d’un couple d’images : application aux mammographies". Electronic Thesis or Diss., Paris 5, 2013. http://www.theses.fr/2013PA05S001.
Pełny tekst źródłaIn the scientific world, signal analysis and especially image analysis is a very active area, due to the variety of existing applications, with issues such as file compression, video surveillance or medical image analysis. This last area is particularly active. The number of existing devices and the number of pictures taken, cause the production of a large amount of information to be processed by practitioners. They can now be assisted by computers.In this thesis, the problem addressed is the development of a computer diagnostic aided system based on conjoint analysis, and therefore on the comparison of medical images. This approach allows to look for evolutions or aberrant tissues in a given set, rather than attempting to characterize, with a strong a priori, the type of fabric sought.This problem allows to apprehend an aspect of the analysis of medical file performed by experts which is the study of a case through the comparison of evolutions.This task is not easy to automate. The human eye performs quasi-automatically treatments that we need to replicate.Before comparing some region on the two images, we need to determine where this area is located on both pictures. Any automated comparison of signals requires a registration phase, an alignment of components present on the pictures, so that they occupy the same space on the two images. Although the characteristics of the processed images allow the development of a smart registration, the projection of a 3D reality onto a 2D image causes differences due to the orientation of the tissues observed, and will not allow to analyze a pair of shots with a simple difference between images. Different structuring of the pictures and different deformation fields are developed here to efficiently address the registration problem.After having minimized the differences on the pictures, the analysis of tissues evolution is not performed at pixels level, but the tissues themselves, as will an expert. To process the images in this logic, they will be reinterpreted, not as pixels of different brightness, but as patterns representative of the entire image, enabling a new decomposition of the pictures. The advantage of such a representation is that it allows to highlight another aspect of the signal, and analyze under a new perspective the information necessary to the diagnosis aid.This thesis has been carried out in the LIPADE laboratory of University Paris Descartes (SIP team, specialized in image analysis) and in collaboration with the Society Fenics (designer of diagnosis aid stations in the analysis of mammograms) under a Cifre convention. The convergence of the research fields of those teams led to the development of this document
Wang, Long. "Etude de l’influence de la microstructure sur les mécanismes d’endommagement dans des alliages Al-Si de fonderie par des analyses in-situ 2D et 3D". Thesis, Ecole centrale de Lille, 2015. http://www.theses.fr/2015ECLI0004/document.
Pełny tekst źródłaAn experimental protocol was developed in this thesis in order to study the influence of casting microstructure on the fatigue behavior in Lost Foam Casting Al-Si alloys in tension and in Low Cycle Fatigue at room temperature. First of all, the microstructures of studied alloys were thoroughly characterized both in 2D and in 3D. The most suitable and representative specimens and Region of Interest (ROIs) where the in-situ monitoring was performed were selected through a preliminary characterization using X-ray tomography, which is also necessary to understand damage mechanisms after failure. In-situ observations performed on surface using Questar long distance microscope and in volume using X-ray tomography allow following cracks initiations and their propagations and thus allow identifying the relation between damage mechanisms and casting microstructure. 2D/3D displacement and strain fields measured using Digital Image Correlation and Digital Volume Correlation allows analyzing the relation between measured fields and damage mechanisms. Postmortem analysis and FEM simulation gave more information for the damage mechanisms. Large pores favor crack initiation as they strongly increase local stress level. Hard inclusions (Si phase, iron intermetallics and copper containing phases) also play an important role in crack initiation and propagation due to strain localizations at these inclusions
Petit, Cécile. "Analyse d’images macroscopiques appliquée à l’injection directe Diesel". Saint-Etienne, 2006. http://www.theses.fr/2006STET4005.
Pełny tekst źródłaDue to emission standards, car manufacturers have to improve combustion. It can be achieved studying Diesel direct injection, particularly fuel atomization as this one is responsible for the mixture quality. The Diesel macroscopic spray is investigated using image processing. An image reference point is first calculated: the virtual spray origin VSO, deduced from the elongated spray plumes primary inertia axes and from a Voronoï diagram. These plumes are analyzed calculating their penetration, angle and barycenter. Afterwards, the line deduced from the spray plume boundary, passing by the virtual injection center, is evaluated. This axis is the reference for the internal symmetry, set in terms of correlation, distances: absolute, Euclidian, infinite and logarithmic which is based on the Logarithmic Image Processing model. This last distance enables to compare sprays acquired in different conditions (light source, ambient medium), it is the liquid continuous core internal symmetry. Then the line deduced from the plume grey levels, forced to pass by the VSO, with the distance to the VSO as additional weight, is calculated. This axis is the basis of the external symmetry, established in terms of correlation, distances: absolute, Euclidian, infinite and Hausdorff. Finally, a spray image can be evaluated using one parameter as the Asplünd distance, circularities, or barycenter. Then penetration and angle populations study show their correlation, variation part to part and plume to plume, non Gaussian distributions. Afterwards, injectors are compared using the image processing parameters. Finally, the data tendencies study show how promising the image processing parameters are
Journet, Nicholas. "Analyse d’images de documents anciens : une approche texture". La Rochelle, 2006. http://www.theses.fr/2006LAROS178.
Pełny tekst źródłaMy phd thesis subject is related to the topic of old documents images indexation. The corpus of old documents has specific characteristics. The content (text and image) as well as the layout information are strongly variable. Thus, it is not possible to work on this corpus such as it usually done with contemporary documents. Indeed, the first tests which we realised on the corpus of the “Centre d’Etude de la Renaissance”, with which we work, confirmed that the traditional approaches (driven –model approaches) are not very efficient because it’s impossible to put assumptions on the physical or logical structure of the old documents. We also noted the lack of tools allowing the indexing of large old documents images databases. In this phd work, we propose a new generic method which permits characterization of the contents of old documents images. This characterization is carried out using a multirésolution study of the textures contained in the images of documents. By constructing signatures related with the frequencies and the orientations of the various parts of a page it is possible to extract, compare or to identify different kind of semantic elements (reference letters, illustrations, text, layout. . . ) without making any assumptions about the physical or logical structure of the analyzed documents. These textures information are at the origin of creation of indexing tools for large databases of old documents images
Części książek na temat "Analyses d’images"
Schyma, Christian. "Détermination de la distance de tir par analyse d’images: radiographie des residus de tir au calibre.22 Ir." W Acta Medicinæ Legalis Vol. XLIV 1994, 301–3. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79523-7_100.
Pełny tekst źródłaDUMITRU, Corneliu Octavian, i Mihai DATCU. "Analyse sémantique de séries chronologiques d’images satellitaires". W Détection de changements et analyse des séries temporelles d’images 2, 99–123. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9057.ch3.
Pełny tekst źródłaHEDHLI, Ihsen, Gabriele MOSER, Sebastiano B. SERPICO i Josiane ZERUBIA. "Champs de Markov et séries chronologiques d’images multicapteurs et multirésolution". W Détection de changements et analyse des séries temporelles d’images 2, 5–39. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9057.ch1.
Pełny tekst źródłaMULLER, Catherine. "Analyse critique d’images et production visuelle créative". W "L'interculturel" dans l’enseignement supérieur, 115–30. Editions des archives contemporaines, 2022. http://dx.doi.org/10.17184/eac.4999.
Pełny tekst źródłaJACQUEMONT, Mikaël, Thomas VUILLAUME, Alexandre BENOIT, Gilles MAURIN i Patrick LAMBERT. "Analyse d’images Cherenkov monotélescope par apprentissage profond". W Inversion et assimilation de données de télédétection, 303–35. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9142.ch9.
Pełny tekst źródłaPELLETIER, Charlotte, i Silvia VALERO. "Techniques de classification basées sur les pixels pour les séries chronologiques d’images satellitaires". W Détection de changements et analyse des séries temporelles d’images 2, 41–98. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9057.ch2.
Pełny tekst źródłaATTO, Abdourrahmane M., Fatima KARBOU, Sophie GIFFARD-ROISIN i Lionel BOMBRUN. "Clustering fonctionnel de séries d’images par entropies relatives". W Détection de changements et analyse des séries temporelles d’images 1, 121–38. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9056.ch4.
Pełny tekst źródłaLIU, Sicong, Francesca BOVOLO, Lorenzo BRUZZONE, Qian DU i Xiaohua TONG. "Détection non supervisée des changements dans des images multitemporelles". W Détection de changements et analyse des séries temporelles d’images 1, 5–40. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9056.ch1.
Pełny tekst źródłaATTO, Abdourrahmane M., Aluísio PINHEIRO, Guillaume GINOLHAC i Pedro MORETTIN. "Analyse d’ordre fractionnaire et prédiction de trajectoire de cyclones". W Détection de changements et analyse des séries temporelles d’images 1, 159–82. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9056.ch6.
Pełny tekst źródłaCONRADSEN, Knut, Henning SKRIVER, Morton J. CANTY i Allan A. NIELSEN. "Détection de séries de changements dans des séries d’images SAR polarimétriques". W Détection de changements et analyse des séries temporelles d’images 1, 41–81. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9056.ch2.
Pełny tekst źródłaStreszczenia konferencji na temat "Analyses d’images"
Hadj SaÏd, M., L. Thollon, Y. Godio-Raboutet, J. H. Catherine, C. M. Chossegros i D. Tardivo. "Modélisation 3D de l’os maxillaire dans l’analyse par éléments finis en implantologie orale : une nouvelle approche utilisant CBCT et anthropométrie". W 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206603022.
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