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Dissertations / Theses on the topic 'Fusion distances'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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1

Devogele, Thomas. "Système d'information géographique temporelle maritime ; Des distances linéaires à l'analyse temps réel des trajectoires." Habilitation à diriger des recherches, Université de Bretagne occidentale - Brest, 2009. http://tel.archives-ouvertes.fr/tel-00441484.

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Les Systèmes d'Information Géographique (SIG) gèrent des informations complexes localisées dans un espace géographique. Durant la dernière décennie, ces systèmes ont vu l'émergence d'une part des SIG en trois dimensions et plus particulièrement des modèles numériques de terrain (MNT) et d'autre part de l'intégration de données temporelles. Les travaux de recherche en informatique présentés dans ce manuscrit s'attaquent à ces deux thématiques et sont appliqués au domaine maritime. En termes de MNT, ces recherches ont essentiellement porté sur l'intégration de MNT terrestre et maritime. Une méth
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2

Pereira, Sandra M. C. "Analysis of spatial point patterns using hierarchical clustering algorithms." University of Western Australia. School of Mathematics and Statistics, 2003. http://theses.library.uwa.edu.au/adt-WU2004.0056.

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[Formulae and special characters can only be approximated here. Please see the pdf version of the abstract for an accurate reproduction.] This thesis is a new proposal for analysing spatial point patterns in spatial statistics using the outputs of popular techniques of (classical, non-spatial, multivariate) cluster analysis. The outputs of a chosen hierarchical algorithm, named fusion distances, are applied to investigate important spatial characteristics of a given point pattern. The fusion distances may be regarded as a missing link between the fields of spatial statistics and multivariate
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3

Guo, Bingchen. "Soft biometric fusion for subject recognition at a distance." Thesis, University of Southampton, 2018. https://eprints.soton.ac.uk/423611/.

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Biometric recognition is an advanced technology that employs physical features (such as fingerprint, iris and face capture) and behavioural features (such as gait, signature and voice) to identify people. Biometric features are reliable and valid ways to describe the unique properties of individuals, but there are often rigorous requirements on the position and characteristics of devices used for data acquisition. Since biometric features can be difficult to capture at a distance, soft biometric features, such as height, weight, skin colour and gender, have received much attention. Although th
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4

Luusua, Emil. "Vehicle Detection, at a Distance : Done Efficiently via Fusion of Short- and Long-Range Images." Thesis, Linköpings universitet, Datorseende, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-167073.

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Object detection is a classical computer vision task, encountered in many practical applications such as robotics and autonomous driving. The latter involves serious consequences of failure and a multitude of challenging demands, including high computational efficiency and detection accuracy. Distant objects are notably difficult to detect accurately due to their small scale in the image, consisting of only a few pixels. This is especially problematic in autonomous driving, as objects should be detected at the earliest possible stage to facilitate handling of hazardous situations. Previous wor
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5

Gunay, Melih. "Representation Of Covariance Matrices In Track Fusion Problems." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12609026/index.pdf.

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Covariance Matrix in target tracking algorithms has a critical role at multi- sensor track fusion systems. This matrix reveals the uncertainty of state es- timates that are obtained from diferent sensors. So, many subproblems of track fusion usually utilize this matrix to get more accurate results. That is why this matrix should be interchanged between the nodes of the multi-sensor tracking system. This thesis mainly deals with analysis of approximations of the covariance matrix that can best represent this matrix in order to efectively transmit this matrix to the demanding site. Kullback-Leib
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6

Sadek, Muheeb. "Synthesis and Investigation of Nucleobase Functionalized β-Peptide as SNAREs Model System for Membranefusion". Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2015. http://hdl.handle.net/11858/00-1735-0000-0022-605D-6.

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7

Serce, Fatma Cemile. "A Multi-agent Adaptive Learning System For Distance Education." Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609220/index.pdf.

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The adaptiveness provides uniquely identifying and monitoring the learner&rsquo<br>s learning activities according to his/her respective profile. The adaptive intelligent learning management systems (AILMS) help a wide range of students to achieve their learning goals effectively by delivering knowledge in an adaptive or individualized style through online learning settings. This study presents a multi-agent system, called MODA, developed to provide adaptiveness in learning management systems (LMS). A conceptual framework for adaptive learning systems is proposed for this purpose. The framewor
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8

Yin, Bo Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Language identification with language and feature dependency." Awarded By:University of New South Wales. Electrical Engineering & Telecommunications, 2009. http://handle.unsw.edu.au/1959.4/44045.

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The purpose of Language Identification (LID) is to identify a specific language from a spoken utterance, automatically. Language-specific characteristics are always associated with different languages. Most existing LID approaches utilise a statistical modelling process with common acoustic/phonotactic features to model specific languages while avoiding any language-specific knowledge. Great successes have been achieved in this area over past decades. However, there is still a huge gap between these languageindependent methods and the actual language-specific patterns. It is extremely useful t
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9

Lassoued, Khaoula. "Localisation de robots mobiles en coopération mutuelle par observation d'état distribuée." Thesis, Compiègne, 2016. http://www.theses.fr/2016COMP2289/document.

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On étudie dans cette thèse des méthodes de localisation coopérative de robots mobiles sans utilisation de mesures extéroceptives relatives, comme des angles ou des distances entre robots. Les systèmes de localisation considérés sont basés sur des mesures de radionavigation sur des balises fixes ou des satellites. Pour ces systèmes, on observe en général un écart entre la position observée et la position réelle. Cet écart systématique (appelé biais) peut être dû à une mauvaise position de la balise ou à une différence entre la propagation réelles des ondes électromagnétiques par rapport aux con
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10

Lian, Chunfeng. "Information fusion and decision-making using belief functions : application to therapeutic monitoring of cancer." Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2333/document.

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La radiothérapie est une des méthodes principales utilisée dans le traitement thérapeutique des tumeurs malignes. Pour améliorer son efficacité, deux problèmes essentiels doivent être soigneusement traités : la prédication fiable des résultats thérapeutiques et la segmentation précise des volumes tumoraux. La tomographie d’émission de positrons au traceur Fluoro- 18-déoxy-glucose (FDG-TEP) peut fournir de manière non invasive des informations significatives sur les activités fonctionnelles des cellules tumorales. Les objectifs de cette thèse sont de proposer: 1) des systèmes fiables pour prédi
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11

Abu-Mahfouz, Adnan Mohammed. "Accurate and efficient localisation in wireless sensor networks using a best-reference selection." Thesis, University of Pretoria, 2011. http://hdl.handle.net/2263/28662.

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Many wireless sensor network (WSN) applications depend on knowing the position of nodes within the network if they are to function efficiently. Location information is used, for example, in item tracking, routing protocols and controlling node density. Configuring each node with its position manually is cumbersome, and not feasible in networks with mobile nodes or dynamic topologies. WSNs, therefore, rely on localisation algorithms for the sensor nodes to determine their own physical location. The basis of several localisation algorithms is the theory that the higher the number of reference no
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12

Dakessian, Leon Chant. "Probing the effects of cultural and psychic distance on M&A performance: the case of multilatinas\' cross-border acquisitions." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/12/12139/tde-25112014-143816/.

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Cross-border acquisitions (CBAs) have extensively been used by Multilatinas as a preferred entry mode in foreign markets, quickly providing access to resources, competencies and local intelligence without the burden of starting up a greenfield investment and bearing its associated risk to face the liability of foreignness. Using fixed-effects, generalized least square (FEGLS) regressions applied on a panel data sample of 602 CBA deals announced during the 1989-2011 period by 182 Multilatinas competing in 74 industries and headquartered in Argentina, Brazil, Chile, Colombia, Mexico, Peru and Ve
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13

Kalvodová, Petra. "Kalibrace snímačů pro multispektrální datovou fúzi v mobilní robotice." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-390238.

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Thesis deals with data fusion and calibration of sensory system of Orpheus-X3 robot and EnvMap mapping robot. These robots are parts of Cassandra robotic system that is used for exploration of hazardous or inaccessible areas. Corrections of measured distances are determined for used laser scanners Velodyne HDL-64, Velodyne HDL-32 and range camera SwissRanger SR4000. Software MultiSensCalib has been created and is described. This software is used for determination of intrinsic parameters of heterogeneous cameras of the sensory head and for determination of mutual position and orientation of the
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14

Mascret, Ariane. "Développement d'une approche SIG pour l'intégration de données Terre/Mer." Phd thesis, Ecole nationale supérieure d'arts et métiers - ENSAM, 2010. http://pastel.archives-ouvertes.fr/pastel-00542500.

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Le domaine maritime littoral constitue un milieu fragile, placé à l'interface Terre/Mer où s'exercent de nombreuses pressions issues des milieux terrestres, maritimes et atmosphériques. Les approches globales de Gestion Intégrée des Zones Côtières (GIZC) ont pour but de pallier les lacunes des politiques précédentes au niveau des interactions simultanées des différents acteurs du littoral. Cette approche requiert un Modèle Numérique de Terrain (MNT) littoral continu ainsi que des données maritimes et terrestres cohérentes entre elles. En raison d'acquisitions ou de productions différentes pour
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15

Vestin, Albin, and Gustav Strandberg. "Evaluation of Target Tracking Using Multiple Sensors and Non-Causal Algorithms." Thesis, Linköpings universitet, Reglerteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-160020.

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Today, the main research field for the automotive industry is to find solutions for active safety. In order to perceive the surrounding environment, tracking nearby traffic objects plays an important role. Validation of the tracking performance is often done in staged traffic scenarios, where additional sensors, mounted on the vehicles, are used to obtain their true positions and velocities. The difficulty of evaluating the tracking performance complicates its development. An alternative approach studied in this thesis, is to record sequences and use non-causal algorithms, such as smoothing, i
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