Academic literature on the topic 'Traitement des données en temps réel'
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Journal articles on the topic "Traitement des données en temps réel"
Nuzillard, Danielle, and Aurélie Nuzillard. "Prototype d’un véhicule autonome pilotable par un poisson rouge." J3eA 22 (2023): 1039. http://dx.doi.org/10.1051/j3ea/20231039.
Full textBourbier, Lucas, Guillaume Cornu, Alexandre Pennec, Christine Brognoli, and Valéry Gond. "Estimation à grande échelle de l'ouverture du couvert forestier en Afrique centrale à l'aide de données de télédétection." BOIS & FORETS DES TROPIQUES 315, no. 315 (March 1, 2013): 3. http://dx.doi.org/10.19182/bft2013.315.a20537.
Full textNdubuka, Nnamdi, Braeden Klaver, Sabyasachi Gupta, Shree Lamichhane, Leslie Brooks, Shirley Nelson, and Grace Akinjobi. "Analyse descriptive d’une éclosion de tuberculose dans une communauté des Premières Nations du nord de la Saskatchewan, décembre 2018 à mai 2019." Relevé des maladies transmissibles au Canada 47, no. 11 (November 10, 2021): 531–37. http://dx.doi.org/10.14745/ccdr.v47i11a07f.
Full textFaouzi, Berrada, Khalili Malika, and Bennis Saad. "Validation en temps réel des données hydrométriques." Canadian Journal of Civil Engineering 30, no. 1 (February 1, 2003): 212–25. http://dx.doi.org/10.1139/l02-089.
Full textFari, Pascale. "L’urgence, un traitement du réel du temps." La Cause freudienne N° 74, no. 1 (April 22, 2010): 57–59. http://dx.doi.org/10.3917/lcdd.074.0057.
Full textBelderbos, Marc. "actualité d’Alberti." Les Pages du laa 1, no. 4 (August 24, 2023): 1–56. http://dx.doi.org/10.14428/lpl.v1i4.75473.
Full textDorléans, Philippe, Hervé Fleury, and Éric Magarotto. "Utilisation d’une carte Raspberry PI 3 sous Matlab/Simulink dans un contexte d’Automatique temps réel." J3eA 21 (2022): 2048. http://dx.doi.org/10.1051/j3ea/20222048.
Full textMougin, Bruno, Jérôme Nicolas, Yannick Vigier, Hélène Bessière, and Stéphane Loigerot. "« MétéEAU Nappes » : un site Internet contenant des services utiles à la gestion des étiages." La Houille Blanche, no. 5 (October 2020): 28–36. http://dx.doi.org/10.1051/lhb/2020045.
Full textBlondeau, Hélene. "La trajectoire de l'emploi du futur chez une cohorte de Montréalais francophones entre 1971 et 1995." Revue de l'Université de Moncton 37, no. 2 (June 1, 2007): 73–98. http://dx.doi.org/10.7202/015840ar.
Full textAubert, Yoann, Thomas Legay, Julien Verdonck, Damien Brunel, and Stéphane Delichere. "Les données spatiales au service du suivi des ressources en eau." E3S Web of Conferences 346 (2022): 04008. http://dx.doi.org/10.1051/e3sconf/202234604008.
Full textDissertations / Theses on the topic "Traitement des données en temps réel"
Al, Chami Zahi. "Estimation de la qualité des données multimedia en temps réel." Thesis, Pau, 2021. http://www.theses.fr/2021PAUU3066.
Full textOver the past decade, data providers have been generating and streaming a large amount of data, including images, videos, audio, etc. In this thesis, we will be focusing on processing images since they are the most commonly shared between the users on the global inter-network. In particular, treating images containing faces has received great attention due to its numerous applications, such as entertainment and social media apps. However, several challenges could arise during the processing and transmission phase: firstly, the enormous number of images shared and produced at a rapid pace requires a significant amount of time to be processed and delivered; secondly, images are subject to a wide range of distortions during the processing, transmission, or combination of many factors that could damage the images’content. Two main contributions are developed. First, we introduce a Full-Reference Image Quality Assessment Framework in Real-Time, capable of:1) preserving the images’content by ensuring that some useful visual information can still be extracted from the output, and 2) providing a way to process the images in real-time in order to cope with the huge amount of images that are being received at a rapid pace. The framework described here is limited to processing those images that have access to their reference version (a.k.a Full-Reference). Secondly, we present a No-Reference Image Quality Assessment Framework in Real-Time. It has the following abilities: a) assessing the distorted image without having its distortion-free image, b) preserving the most useful visual information in the images before publishing, and c) processing the images in real-time, even though the No-Reference image quality assessment models are considered very complex. Our framework offers several advantages over the existing approaches, in particular: i. it locates the distortion in an image in order to directly assess the distorted parts instead of processing the whole image, ii. it has an acceptable trade-off between quality prediction accuracy and execution latency, andiii. it could be used in several applications, especially these that work in real-time. The architecture of each framework is presented in the chapters while detailing the modules and components of the framework. Then, a number of simulations are made to show the effectiveness of our approaches to solve our challenges in relation to the existing approaches
Puthon, Anne-Sophie. "Détermination de la vitesse limite par fusion de données vision et cartographiques temps-réel embarquées." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2013. http://pastel.archives-ouvertes.fr/pastel-00957392.
Full textHautot, Félix. "Cartographie topographique et radiologique 3D en temps réel : acquisition, traitement, fusion des données et gestion des incertitudes." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS141.
Full textIn the field of nuclear related activities such as maintenance, decontamination and dismantling status reports of potentially contaminated or activated elements are required beforehand. For economic reasons, this status report must be quickly performed. So as to be done quickly, the operation is realized by an operator, and his exposure time must be reduced as much as possible. Concerning indoor environments, it can be hard to make such investigations due to out-of-date plans or maps, loose of GPS signal, pre-positioning of underlying or precalibrated systems. Indeed, the premises status report is obtained by coupling nuclear measurements and topographical mapping. In such kind of situation it is necessary to have a portative instrument that delivers an exhaustive radiological and topographical mapping in order to deliver a decision support concerning the best intervention scenario to set up as fast as possible. Furthermore, and so as to reduce operator’s exposure time, such kind of method must be usable in real time. This method enables to proceed to complex intervention within the best radiological previsions for optimizing operator’s exposition time and waste management. In this goal, Areva STMI then developed a nuclear measurement probes autonomous positioning and motion estimation system based on visual SLAM (Simultaneous Localization And Mapping). These developments led to apply a patent. This thesis consisted in pursuing this survey, especially decomposing all the underlying systems, continuing the data fusion developments, proposing optimisations, and setting the basis of a real-time associated uncertainties analysis. SLAM based on visual odometry can be performed with RGB-D sensor (Microsoft Kinect®-like sensors). The acquisition process delivers a 3D map containing radiological sensors poses (positions and orientations in 3D) and measurements (dose rate and CZT gamma spectrometry) without any external signal or device. Moreover, a few radioactive sources localization algorithms based on geostatistics and back projection of measurements can also be performed in near real-time. It is then possible to evaluate the position of radioactive sources in the scene and compute fast radiological mappings of premises close to the acquisition. The last part of this work consisted in developing an original method for real-time evaluation of the process chain and results accuracies. The evaluation of uncertainties and their propagation along the acquisition and process chain in real-time provide feedbacks on employed methods for investigations or intervention processes and enable to evaluate the reliability of acquired data. Finally, a set of benchmarks has been performed in order to estimate the results quality by comparing them to reference methods
Marsit, Nadhem. "Traitement des requêtes dépendant de la localisation avec des contraintes de temps réel." Toulouse 3, 2007. http://thesesups.ups-tlse.fr/106/.
Full textIn last years, the mobility of units achieved an increasing development. One of the direct consequences in the database field is the appearance of new types of queries such as Location Dependent Queries (LDQ) (e. G. An ambulance driver asks for the closest hospital). These queries raise problems which have been considered by several researches. Despite the intensive work related to this field, the different types of queries studied so far do not meet all the needs of location based applications. In fact these works don’t take into account the real time aspect required by certain location based applications. These new requirements generate new types of queries such as mobile queries with real time constraints. Taking into account mobility and real time constraints is an important problem to deal with. Hence, our main objective is to propose a solution for considering real time constraints while location dependent query processing. First, we propose a language for expressing different type of queries. Then, we design a software architecture allowing to process location dependent queries with real time constraints. The modules of this architecture are designed to be implemented on top of existent DBMS (e. G. Oracle). We propose methods to take into account location of mobile client and his displacement after sending the query. We also propose methods in order to maximise the percentage of queries respecting their deadlines. Finally we validate our proposal by implementing the proposed methods and evaluating their performance
Martin, Patrick. "Conception et réalisation d'un système multiprocesseur, cadencé par les données, pour le traitement d'images linéaires en temps réel." Rouen, 1991. http://www.theses.fr/1991ROUE5046.
Full textGagnon-Turcotte, Gabriel. "Algorithmes et processeurs temps réel de traitement de signaux neuronaux pour une plateforme optogénétique sans fil." Master's thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/26339.
Full textL’acquisition des signaux électriques provenant des neurones du cerveau permet aux neurobiologistes de mieux comprendre son fonctionnement. Dans le cadre de ce travail, de nouveaux algorithmes de compression des signaux neuronaux sont conçus et présentés. Ces nouveaux algorithmes sont incorporés dans trois nouveaux dispositifs optogénétiques sans fil miniature capable de stimuler optiquement l’activité neuronale et de transmettre sans fil les biopotentiels captés par plusieurs microélectrodes. Deux de ces systèmes sont capables de compresser les signaux provenant de deux microélectrodes ainsi que de stimuler optiquement via deux diodes électroluminescentes (DEL) haute puissance. Afin de réduire la bande passante des transmetteurs sans fil utilisés, ces deux systèmes sont dotés d’un nouvel algorithme de détection des potentiels d’actions qui génère de meilleurs taux de détection que les algorithmes existants, tout en nécessitant moins de ressources matérielles et de temps de processeur. Un troisième dispositif incorporant les algorithmes de détection et de compression fût conçu. Ce dispositif est le seul système optogénétique sans fil comportant 32 canaux de stimulation optique et 32 canaux d’enregistrement électrophysiologiques en parallèle. Il utilise une nouvelle technique de compression par ondelettes permettant d’augmenter significativement le nombre de canaux sous observation sans augmenter la consommation de l’émetteurrécepteur. Cette nouvelle méthode de compression se distingue des méthodes existantes en atteignant de meilleurs taux de compression tout en permettant de reconstruire les signaux compressés avec une meilleure qualité. Au moment de la rédaction de ce mémoire, il s’agit des premiers dispositifs optogénétiques sans fil à offrir simultanément de la stimulation optique multicanal, de l’enregistrement électrophysiologique multicanal ainsi que de la détection/compression in situ des potentiels d’actions. Grâce à leur design novateur et aux innovations apportées par les nouveaux algorithmes de traitement des signaux, les systèmes conçus sont plus légers et plus compacts que les systèmes précédents, rendant ces dispositifs indispensables afin de mener des expériences sur le cerveau de petits animaux libres de leurs mouvements. Les trois systèmes ont été validés avec grand succès par des expériences in vivo sur des souris transgéniques au Centre de Recherche de l’Institut Universitaire en Santé Mentale de Québec (CRIUSMQ).
The electrical signals acquisition from the brain’s neurons allows neuroscientists to better understand its functioning. In this work, new neural signals compression algorithms are designed and presented. These new algorithms are incorporated into three new miniature optogenetic wireless devices. These devices are capable to optically stimulate neural activity and to wirelessly transmit the biopotentials captured by several microelectrodes. Two of these systems are able to compress the signals from two microelectrodes and to stimulate optically via two high-power LED. Both systems feature a new spike detection algorithm to reduce the bandwidth used by the wireless transceiver. This new spike detection algorithm differs from existing algorithms by achieving better detection rate while using less material resources and processing time. A third device incorporating the detection and compression algorithms was designed. This device is the only optogenetic wireless system including 32 optical stimulation channels and 32 electrophysiological recording channels in parallel. This new system has the ability to compress the neural signals using a new wavelet compression technique that significantly increase the number of channels under observation without increasing the consumption of the wireless transceiver. In particular, this new compression technique differs from the existing wavelet based compression methods by achieving better compression ratio while allowing to reconstruct the compressed signals with better quality. At the time of writing this thesis, these are the first three devices that offer simultaneous multichannel optical stimulation, multichannel electrophysiological signals recording and on-the-fly spike detection. The resulting systems are more compact and lightweight than previous systems, making these devices essentials to conduct long term experiments on the brains of small freely moving animals. The three systems were validated within in vivo experiments using transgenic mice at the Centre de Recherche de l’Institut Universitaire en Santé Mentale de Québec (CRIUSMQ).
Cotton, Julien. "Analyse et traitement de données sismiques 4D en continu et en temps réel pour la surveillance du sous-sol." Electronic Thesis or Diss., Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEM023.
Full text3D seismic reflection is widely used in the oil industry. This standard subsoil auscultation method provides information on geological structures and can be used to build reservoir models. However, the properties derived from3D (and 2D) seismic data are only static: 3D does not allow to evaluate the changes with calendar time. The addition of a temporal dimension to 3D data is obtained by repeating the measurements at several dates separated by several months or even several years. Thus, 4D seismic (time-lapse) makes it possible to measure and to analyze the changes of the subsoil in the long term. Since the 90s, this method is used worldwide at sea and on land. To carry out a much more frequent monitoring (daily), even continuous (a few hours) of the subsoil, CGG developed, in collaboration with Gazde France (now ENGIE) and Institut Français du Pétrole (now IFPEN), a solution based on buried sources and receptors: SeisMovie. SeisMovie was originally designed to monitor and map the gas front in real time during geological disposal operations. It is also used to observe the steam injection required for heavy oil production. In this thesis, we bring contributions to three challenges arising in the processing of seismic data from this system. The first one concerns the attenuation of near-surface variations caused by "ghost" waves that interfere with primary waves. The second one concerns the quantification of subsurface changes in terms of propagation velocity variation and acoustic impedance.The third one concerns real-time: the data processing must be at least as fast as the acquisition cycle (a few hours). Infact, the analysis of the data must enable the reservoir engineers to make quick decisions (stop of the injection, decreaseof the production). In a more general context, there are conceptual similarities between 3D and 4D. In 4D, the repeated acquisitions are compared with each other (or with a reference). In 3D, during acquisition, field geophysicists compare unitary shot points with each other to assess the quality of the data for decision-making (reshooting, skipping orcontinuing). Therefore, some 4D real-time tools developed during this thesis can be applied. A new approach called TeraMig for automated quality control in the field will also be presented
Sasportas, Raphaël. "Etude d'architectures dédiées aux applications temps réel d'analyse d'images par morphologie mathématique." Paris, ENMP, 2002. http://www.theses.fr/2002ENMP1082.
Full textPicard, Quentin. "Proposition de mécanismes d'optimisation des données pour la perception temps-réel dans un système embarqué hétérogène." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASG039.
Full textThe development of autonomous systems has an increasing need for perception of the environment in embedded systems. Autonomous cars, drones, mixed reality devices have limited form factor and a restricted budget of power consumption for real-time performances. For instance, those use cases have a budget in the range of 300W-10W, 15W-10W and 10W-10mW respectively. This thesis is focused on autonomous and mobile systems with a budget of 10mW to 15W with the use of imager sensors and the inertial measurement unit (IMU). Simultaneous Localization And Mapping (SLAM) provides accurate and robust perception of the environment in real-time without prior knowledge for autonomous and mobile systems. The thesis aims at the real-time execution of the whole SLAM system composed of advanced perception functions, from localization to 3D reconstruction, with restricted hardware resources. In this context, two main questions are raised to answer the challenges of the literature. How to reduce the resource requirements of advanced perception functions? What is the SLAM pipeline partitioning for the heterogeneous system that integrates several computing units, from the embedded chip in the imager, to the near-sensor processing (FPGA) and in the embedded platform (ARM, embedded GPU)?. The first issue addressed in the thesis is about the need to reduce the hardware resources used by the SLAM pipeline, from the sensor output to the 3D reconstruction. In this regard, the work described in the manuscript provides two main contributions. The first one presents the processing in the embedded chip with an impact on the image characteristics by reducing the dynamic range. The second has an impact on the management of the image flow injected in the SLAM pipeline with a near-sensor processing. The first contribution aims at reducing the memory footprint of the SLAM algorithms with the evaluation of the pixel dynamic reduction on the accuracy and robustness of real-time localization and 3D reconstruction. The experiments show that we can reduce the input data up to 75% corresponding to 2 bits per pixel while maintaining a similar accuracy than the baseline 8 bits per pixel. Those results have been obtained with the evaluation of the accuracy and robustness of four SLAM algorithms on two databases. The second contribution aims at reducing the amount of data injected in SLAM with a decimation strategy to control the input frame rate, called the adaptive filtering. Data are initially injected in constant rate (20 frames per second). This implies a consumption of energy, memory, bandwidth and increases the complexity of calculation. Can we reduce this amount of data ? In SLAM, the accuracy and the number of operations depend on the movement of the system. With the linear and angular accelerations from the IMU, data are injected based on the movement of the system. Those key images are injected with the adaptive filtering approach (AF). Although the results depend on the difficulty of the chosen database, the experiments describe that the AF allows the decimation of up to 80% of the images while maintaining low localization and reconstruction errors similar to the baseline. This study shows that in the embedded context, the peak memory consumption is reduced up to 92%
Ouerhani, Yousri. "Contribution à la définition, à l'optimisation et à l'implantation d'IP de traitement du signal et des données en temps réel sur des cibles programmables." Phd thesis, Université de Bretagne occidentale - Brest, 2012. http://tel.archives-ouvertes.fr/tel-00840866.
Full textBooks on the topic "Traitement des données en temps réel"
Max, Jacques. Méthodes et techniques de traitement du signal et applications aux mesures physiques. 4th ed. Paris: Masson, 1985.
Find full textThe complete idiot's guide to Microsoft Office 97. Indianapolis, IN: Que, 1998.
Find full textSherry, Kinkoph, ed. The complete idiot's guide to Microsoft Office 97. 2nd ed. Indianapolis, Ind: Alpha Books/Que, 1998.
Find full textIntroduction aux systèmes temps réel. Hermes Sciences Publicat., 1999.
Find full textReal-Time Systems with Transputers, (OUG-13) (Transputer and Occam Engineering Systems). Ios Pr Inc, 1990.
Find full textMICROSOFT OFFICE 97 FOR PROFESSIONAL EDITION ILLUSTRATED A FIST COURSE AND BRIEF APPLICATIONS. Course Technology, Inc., 1997.
Find full textBook chapters on the topic "Traitement des données en temps réel"
DE’ FAVERI TRON, Alvise. "La détection d’intrusion au moyen des réseaux de neurones : un tutoriel." In Optimisation et apprentissage, 211–47. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9071.ch8.
Full textGARZELLI, Andrea, and Claudia ZOPPETTI. "Analyse multitemporelle d’images Sentinel-1/2 pour le suivi de l’utilisation des sols." In Détection de changements et analyse des séries temporelles d’images 1, 221–45. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9056.ch8.
Full textConference papers on the topic "Traitement des données en temps réel"
Romanet, I., J. H. Catherine, P. Laurent, R. Lan, and E. Dubois. "Efficacité de l’ostéotomie interalvéolaire par piezocision : revue de la littérature." In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206603010.
Full textBenzina, Ouafae. "Du lexique de l'eau dans Mont-Oriol et Pierre et Jean de Guy de Maupassant." In XXV Coloquio AFUE. Palabras e imaginarios del agua. Valencia: Universitat Politècnica València, 2016. http://dx.doi.org/10.4995/xxvcoloquioafue.2016.3081.
Full textNoaillon, E., S. Azogui-Lévy, G. Lescaille, R. Toledo, V. Descroix, P. Goudot, and J. Rochefort. "Impact des recommandations de l’ANSM dans la prise en charge en cabinet libéral des collections circonscrites aiguës suppurées de la cavité orale d’origine dentaire : enquête nationale." In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206602017.
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