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Artykuły w czasopismach na temat "Suivi d'image"
Inglada, Jordi. "Lettre : Utilisation conjointe de séries temporelles d'images optiques et radar pour le suivi des surfaces agricoles". Revue Française de Photogrammétrie et de Télédétection, nr 219-220 (19.01.2020): 71–72. http://dx.doi.org/10.52638/rfpt.2019.468.
Pełny tekst źródłaVOISIN, Steven, Nicolas LASSALLE, Isabelle LECOUILLARD, Marine LE FEUNTEUN, Béatrice CARSIN-NICOL i Jean-Christophe FERRE. "TEMPORARY REMOVAL: UTILITÉ D'UN OUTIL DE FUSION D'IMAGE AVEC CODAGE COULEUR AUTOMATISÉ (FIACC) POUR LE SUIVI DES MODIFICATIONS DES MÉNINGIOMES INTRACRÂNIENS IRRADIÉS À L'AIDE D'UNE SÉQUENCE PONDÉRÉE T1 INJECTÉE AVEC SATURATION DE LA GRAISSE." Journal of Neuroradiology 51, nr 2 (marzec 2024): 97. http://dx.doi.org/10.1016/j.neurad.2024.01.046.
Pełny tekst źródłaCatry, Thibault, i Alain Besnard. "Suivi de l'évolution de la tâche urbaine entre 2008 et 2013 à Saint-Denis de la Réunion (France) : Apports de l'imagerie satellite Pléiades". Revue Française de Photogrammétrie et de Télédétection, nr 209 (29.01.2015): 89–94. http://dx.doi.org/10.52638/rfpt.2015.164.
Pełny tekst źródłaDehouck, Aurelie, Virginie Lafon, Nicolas Baghdadi, Guillaume Clos, Danielle Ducrot, Samantha Yeo, Marie-Lise Benot, Cécile Curti, Pierre-Guy Sauriau i Stéphane Kervella. "Cartographie des habitats naturels des estrans et zones humides littorales". Revue Française de Photogrammétrie et de Télédétection, nr 208 (23.10.2014): 51–56. http://dx.doi.org/10.52638/rfpt.2014.153.
Pełny tekst źródłaKatlane, Faten, i Mohamed Saber Naceur. "La combinaison d'indicateurs de changement pour le suivi de l'évolution de l'occupation du sol à partir d'imagerie satellitales". Revue Française de Photogrammétrie et de Télédétection, nr 203 (8.04.2014): 43–48. http://dx.doi.org/10.52638/rfpt.2013.29.
Pełny tekst źródłaGond, Valéry, i Stéphane Guitet. "Elaboration d'un diagnostic post-exploitation par télédétection spatiale pour la gestion des forêts de Guyane". BOIS & FORETS DES TROPIQUES 299, nr 299 (1.03.2009): 5. http://dx.doi.org/10.19182/bft2009.299.a20423.
Pełny tekst źródłaCorpetti, Thomas, Vincent Dubreuil, Etienne Mémin, Nicolas Papadakis, Olivier Planchon i Claire Thomas. "Outils méthodologiques pour l'Analyse d'images MSG: Estimation du mouvement, suivi des masses nuageuses et détection de fronts". Revue Française de Photogrammétrie et de Télédétection, nr 205 (21.02.2014): 3–17. http://dx.doi.org/10.52638/rfpt.2014.11.
Pełny tekst źródłaLisein, Jonathan, Stéphanie Bonnet, Philippe Lejeune i Marc Pierrot-Deseilligny. "Modélisation de la canopée forestière par photogrammétrie depuis des images acquises par drone". Revue Française de Photogrammétrie et de Télédétection, nr 206 (19.06.2014): 45–54. http://dx.doi.org/10.52638/rfpt.2014.7.
Pełny tekst źródłaLafrance, Bruno, Xavier Lenot, Caroline Ruffel, Patrick Cao i Thierry Rabaute. "Outils de prétraitements des images optiques Kalideos". Revue Française de Photogrammétrie et de Télédétection, nr 197 (21.04.2014): 10–16. http://dx.doi.org/10.52638/rfpt.2012.78.
Pełny tekst źródłaRaucoules, Daniel, Elisabeth Simonetto i Bénédicte Fruneau. "Observation et suivi de déformations de surface d'origine anthropique par interferométrie radar satellitaire". Revue Française de Photogrammétrie et de Télédétection, nr 219-220 (19.01.2020): 73–82. http://dx.doi.org/10.52638/rfpt.2019.469.
Pełny tekst źródłaRozprawy doktorskie na temat "Suivi d'image"
Ben, Himane Mohamed Selim. "Vers une approche unifiée pour le suivi temps réel et l'asservissement visuel". Paris, ENMP, 2006. http://www.theses.fr/2006ENMP1393.
Pełny tekst źródłaNowadays, in addition to the classical domain of the robotic manipulation, vision-based control offers a large spectrum of applications in various contexts using computer vision and control theory. One possibility to develop vision-based control algorithms is to integrate methods and approaches developed in a separately by the vision and the control communities. Instead of considering vision and control techniques separately, in this thesis, they are integrated in a unified framework. We developed a generic, flexible and robust system that can be used by a wide variety of robotic applications. We made different contributions towards the conception of such complete system. Two major contributions are presented:1- A template-based visual tracking of objects in the image using an Efficient Second-order Minimization technique called the ESM technique. Compared to the existing methods, the proposed algorithm gives better convergence properties (bigger radius and higher rate and frequency of convergence). This approach has been generalized to the direct estimation in the Cartesian space of the relative camera/object motion. 2- A new 2D visual servoing is also introduced. The control law is locally stable and unlike all the existing methods, it does not need any a priori measure of the model of object with respect to which the visual servoing is performed. Only information extracted from the reference and the current images are used to compute the control law
Ieng, Sio-Song. "Méthodes robustes pour la détection et le suivi des marquages". Paris 6, 2004. http://www.theses.fr/2004PA066547.
Pełny tekst źródłaPrimet, Maël. "Méthodes probabiliste pour le suivi de points et l'analyse d'images biologiques". Phd thesis, Université René Descartes - Paris V, 2011. http://tel.archives-ouvertes.fr/tel-00669220.
Pełny tekst źródłaHistace, Aymeric. "Détection et suivi robustes de structures sur des séquences d'images : application à l'IRM cardiaque marquée". Angers, 2004. http://www.theses.fr/2004ANGE0022.
Pełny tekst źródłaThis thesis is dealing with the detection and the follow-up of structures in image sequences. We show that the integration of original external energies in a simple active contours model can lead to precise and reliable data detections. This work is presented through a particular application : the study of tagged cardiac MRI sequences. The study of those sequences can be divided into two parts : a detection and a follow-up of the internal and external boundaries of the Left Ventricle and a detection and a follow-up of the grid of tags. For the achievement of the first step, we propose the integration of a particular external energy which generation is based on a texture analysis of the tagged MRI. For the second, we propose an anisotropic diffusion of the images, which leading equation is based on an informational formalism using the Extreme Physical Information process. All the obtained results has been validated by a medical expert
Ireta, Munoz Fernando Israel. "Estimation de pose globale et suivi pour la localisation RGB-D et cartographie 3D". Thesis, Université Côte d'Azur (ComUE), 2018. http://www.theses.fr/2018AZUR4054/document.
Pełny tekst źródłaThis thesis presents a detailed account of novel techniques for pose estimation by using both, color and depth information from RGB-D sensors. Since pose estimation simultaneously requires an environment map, 3D scene reconstruction will also be considered in this thesis. Localization and mapping has been extensively studied by the robotics and computer vision communities and it is widely employed in mobile robotics and autonomous systems for performing tasks such as tracking, dense 3D mapping and robust localization. The central challenge of pose estimation lies in how to relate sensor measurements to the state of position and orientation. When a variety of sensors, which provide different information about the same data points, are available, the challenge then becomes part of how to best fuse acquired information at different times. In order to develop an effective algorithm to deal with these problems, a novel registration method named Point-to-hyperplane Iterative Closest Point will be introduced, analysed, compared and applied to pose estimation and key-frame mapping. The proposed method allows to jointly minimize different metric errors as a single measurement vector with n-dimensions without requiring a scaling factor to tune their importance during the minimization process. Within the Point-to-hyperplane framework two main axes have been investigated. Firstly, the proposed method will be employed for performing visual odometry and 3D mapping. Based on actual experiments, it has been shown that the proposed method allows to accurately estimate the pose locally by increasing the domain of convergence and by speeding up the alignment. The invariance is mathematically proven and results in both, simulated and real environments, are provided. Secondly, a method is proposed for global localization for enabling place recognition and detection. This method involves using the point-to-hyperplane methods within a Branch-and-bound architecture to estimate the pose globally. Therefore, the proposed method has been combined with the Branch-and-bound algorithm to estimate the pose globally. Since Branch-and-bound strategies obtain rough alignments regardless of the initial position between frames, the Point-to-hyperplane can be used for refinement. It will be demonstrated that the bounds are better constrained when more dimensions are considered. This last approach is shown to be useful for solving mistracking problems and for obtaining globally consistent 3D maps. In a last part of the thesis and in order to demonstrate the proposed approaches and their performance, both visual SLAM and 3D mapping results are provided
Fontmarty, Mathias. "Vision et filtrage particulaire pour le suivi tridimensionnel de mouvements humains: applications à la robotique". Phd thesis, Université Paul Sabatier - Toulouse III, 2008. http://tel.archives-ouvertes.fr/tel-00400305.
Pełny tekst źródłaXu, Kele. "Visualisation tridimensionnelle de la langue basée sur des séquences d'image échographique en mode-B". Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066498/document.
Pełny tekst źródłaA silent speech interface (SSI) is a system to enable speech communication with non-audible signal, that employs sensors to capture non-acoustic features for speech recognition and synthesis. Extracting robust articulatory features from such signals, however, remains a challenge. As the tongue is a major component of the vocal tract, and the most important articulator during speech production, a realistic simulation of tongue motion in 3D can provide a direct, effective visual representation of speech production. This representation could in turn be used to improve the performance of speech recognition of an SSI, or serve as a tool for speech production research and the study of articulation disorders. In this thesis, we explore a novel 3D tongue visualization framework, which combines the 2D ultrasound imaging and 3D physics-based modeling technique. Firstly, different approaches are employed to follow the motion of the tongue in the ultrasound image sequences, which can be divided into two main types of methods: speckle tracking and contour tracking. The methods to track speckles include deformation registration, optical-flow, and local invariant features-based method. Moreover, an image-based tracking re-initialization method is proposed to improve the robustness of speckle tracking. Compared to speckle tracking, the extraction of the contour of the tongue surface from ultrasound images exhibits superior performance and robustness. In this thesis, a novel contour-tracking algorithm is presented for ultrasound tongue image sequences, which can follow the motion of tongue contours over long durations with good robustness. To cope with missing segments caused by noise, or by the tongue midsagittal surface being parallel to the direction of ultrasound wave propagation, active contours with a contour-similarity constraint are introduced, which can be used to provide “prior” shape information. Experiments on synthetic data and on real 60 frame per second data from different subjects demonstrate that the proposed method gives good contour tracking for ultrasound image sequences even over durations of minutes, which can be useful in applications such as speech recognition where very long sequences must be analyzed in their entirety…
Lelong, Thibault. "Reconnaissance des documents avec de l'apprentissage profond pour la réalité augmentée". Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAS017.
Pełny tekst źródłaThis doctoral project focuses on issues related to the identification of images and documents in augmented reality applications using markers, particularly when using cameras. The research is set in a technological context where interaction through augmented reality is essential in several domains, including industry, which require reliable identification methodologies.In an initial phase, the project assesses various identification and image processing methodologies using a database specially designed to reflect the challenges of the industrial context. This research allows an in-depth analysis of existing methodologies, thus revealing their potentials and limitations in various application scenarios.Subsequently, the project proposes a document detection system aimed at enhancing existing solutions, optimized for environments such as web browsers. Then, an innovative image research methodology is introduced, relying on an analysis of the image in sub-parts to increase the accuracy of identification and avoid image confusions. This approach allows for more precise and adaptive identification, particularly with respect to variations in the layout of the target image.Finally, in the context of collaborative work with ARGO company, a real-time image tracking engine was developed, optimized for low-power devices and web environments. This ensures the deployment of augmented reality web applications and their operation on a wide range of devices, including those with limited processing capabilities.It is noteworthy that the works resulting from this doctoral project have been concretely applied and valorized by the Argo company for commercial purposes, thereby confirming the relevance and viability of the developed methodologies and solutions, and attesting to their significant contribution to the technological and industrial field of augmented reality
Xu, Kele. "Visualisation tridimensionnelle de la langue basée sur des séquences d'image échographique en mode-B". Electronic Thesis or Diss., Paris 6, 2016. http://www.theses.fr/2016PA066498.
Pełny tekst źródłaA silent speech interface (SSI) is a system to enable speech communication with non-audible signal, that employs sensors to capture non-acoustic features for speech recognition and synthesis. Extracting robust articulatory features from such signals, however, remains a challenge. As the tongue is a major component of the vocal tract, and the most important articulator during speech production, a realistic simulation of tongue motion in 3D can provide a direct, effective visual representation of speech production. This representation could in turn be used to improve the performance of speech recognition of an SSI, or serve as a tool for speech production research and the study of articulation disorders. In this thesis, we explore a novel 3D tongue visualization framework, which combines the 2D ultrasound imaging and 3D physics-based modeling technique. Firstly, different approaches are employed to follow the motion of the tongue in the ultrasound image sequences, which can be divided into two main types of methods: speckle tracking and contour tracking. The methods to track speckles include deformation registration, optical-flow, and local invariant features-based method. Moreover, an image-based tracking re-initialization method is proposed to improve the robustness of speckle tracking. Compared to speckle tracking, the extraction of the contour of the tongue surface from ultrasound images exhibits superior performance and robustness. In this thesis, a novel contour-tracking algorithm is presented for ultrasound tongue image sequences, which can follow the motion of tongue contours over long durations with good robustness. To cope with missing segments caused by noise, or by the tongue midsagittal surface being parallel to the direction of ultrasound wave propagation, active contours with a contour-similarity constraint are introduced, which can be used to provide “prior” shape information. Experiments on synthetic data and on real 60 frame per second data from different subjects demonstrate that the proposed method gives good contour tracking for ultrasound image sequences even over durations of minutes, which can be useful in applications such as speech recognition where very long sequences must be analyzed in their entirety…
El-Chaar, Wafi. "Segmentation et suivi d'objets couleur dans une séquence vidéo à l'aide de réseaux de neurones auto-organisés". Littoral, 2007. http://www.theses.fr/2007DUNK0204.
Pełny tekst źródłaIn this research, we are interested in automatic segmentation of color objects using artificial neural networks. We apply this segmentation to track moving objects in a video sequence. Our ultimate goal is to build an “intelligent Visual Machine” that is able to “ see” and “understand” what it sees. A wide range of applications could be benefit from such a research : intelligent transportation systems, objects or persons tracking, objects or behavior recognition and many other engineering or biomedical applications. We developed an algorithm that starts with a pre-defined set of neurons uniformly representing the color space. The algorithm then reduces this set by eliminating the ones which had little or no contribution to the colors of the image. A Kohonen’s SOM neural network learns then the distribution of the remaining (useful) colors in the color space and represents them in an optimized way. Next, we use a histogram of market-shares to detect and keep only the most dominant useful colors found in the image. We use those colors to identify and separate color segments. We used the economical ABC-Analysis and Pareto’s 80/20 rule to filter the available segments and concentrate on the most important 95% of them. This represent a huge reduction in the number of objects treated and a much better quality of segmentation. We applied this segmentation algorithm to feed an object tracking algorithm that contained some new rules governing tracking algorithms and validating their results. The most important one was that tracking algorithms should perform the same way if applied in forward or backward playing mode (objects should match both ways). We developed a tracking algorithm based on visual features matching technique and calculated the relative difference of 5 basic visual features to do the match. Those features were color, centroid, area, boundingbox, and orientation and were compared between different objects from consecutive frames. We were able to detect all 3 states of an object : appearance, existence, and disappearance
Książki na temat "Suivi d'image"
Castex, Pierre-Georges. Musset, On ne badine pas avec l'amour: Texte intégral de la pièce, précédé d'une étude historique, suivi d'un commentaire littéraire et d'images de scène. Paris: Société d'Édition d'Enseignement Supérieur, 1990.
Znajdź pełny tekst źródłaMusset, Alfred de. On ne badine pas avec l'amour : Texte intégral, précédé d'une étude historique, suivi d'un commentaire littéraire et d'images de scène. CDU SEDES, 1995.
Znajdź pełny tekst źródłaCzęści książek na temat "Suivi d'image"
ATTO, 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 źródłaPHAM, Minh-Tan, i Grégoire MERCIER. "Détection de changements sur les graphes de séries SAR". W Détection de changements et analyse des séries temporelles d’images 1, 183–219. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9056.ch7.
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