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Relevant bibliographies by topics / Nonlinear reconstruction / Dissertations / Theses

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Dissertations / Theses on the topic 'Nonlinear reconstruction'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

Cecchetto, Benjamin Thomas. "Nonlinear blood pattern reconstruction." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/29394.

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We present a method of reconstructing the area of origin for blood droplets given the position and directions of impact stains. This method works for nonlinear trajectories, such as parabolic motion or motion with drag. A model for fitting ellipses to the stains, obtaining impact velocities, blood drop mass and drag coefficient from blood splatter image densities, impact angle and pattern is also provided. We also show how to use this extra data to aid with our estimation. We validate our method in several experiments involving blood splatters at varying velocities and angles.

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Smario, David J. "Multicorrelation analysis and state space reconstruction /." Online version of thesis, 1994. http://hdl.handle.net/1850/11443.

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Humble, Travis Selby. "Nonlinear wave-packet interferometry and molecular state reconstruction /." view abstract or download file of text, 2005. http://wwwlib.umi.com/cr/uoregon/fullcit?p3190522.

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Thesis (Ph. D.)--University of Oregon, 2005.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 218-220). Also available for download via the World Wide Web; free to University of Oregon users.

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Liu, Peng. "Nonlinear statistical approach for 2.5D human face reconstruction." Thesis, University of Newcastle Upon Tyne, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607166.

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Dicken, Volker. "Simultaneous activity and attenuation reconstruction in emission tomography." Universität Potsdam, 1998. http://opus.kobv.de/ubp/volltexte/2007/1474/.

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In single photon emission computed tomography (SPECT) one is interested in reconstructing the activity distribution f of some radiopharmaceutical. The data gathered suffer from attenuation due to the tissue density µ. Each imaged slice incorporates noisy sample values of the nonlinear attenuated Radon transform (formular at this place in the original abstract) Traditional theory for SPECT reconstruction treats µ as a known parameter. In practical applications, however, µ is not known, but either crudely estimated, determined in costly additional measurements or plainly neglected. We demonstrat

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Ortín, González Silvia. "Nonlinear dynamics reconstruction by neural networks of time-delay chaotic systems." Doctoral thesis, Universidad de Cantabria, 2010. http://hdl.handle.net/10803/31824.

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This thesis is motivated by the intense research in chaos-based communications in the last years. This thesis focuses on the reconstruction of the nonlinear dynamic of time-delay systems by using an embedding-like approach. This method works with a special embedding space that includes both short time and feedback time delayed values of the system variable. We use a new type of modular neural network based on the structure of time-delay systems. We also carefully investigate the time delay identification from the time series, a crucial parameter to construct the special embedding vector. Fina

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Chau, Thi Tuyet Trang. "Non-parametric methodologies for reconstruction and estimation in nonlinear state-space models." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1S010/document.

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Le volume des données disponibles permettant de décrire l’environnement, en particulier l’atmosphère et les océans, s’est accru à un rythme exponentiel. Ces données regroupent des observations et des sorties de modèles numériques. Les observations (satellite, in situ, etc.) sont généralement précises mais sujettes à des erreurs de mesure et disponibles avec un échantillonnage spatio-temporel irrégulier qui rend leur exploitation directe difficile. L’amélioration de la compréhension des processus physiques associée à la plus grande capacité des ordinateurs ont permis des avancées importantes da

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Randrianarivony, Maharavo, and Guido Brunnett. "Parallel implementation of curve reconstruction from noisy samples." Universitätsbibliothek Chemnitz, 2006. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200600519.

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This paper is concerned with approximating noisy samples by non-uniform rational B-spline curves with special emphasis on free knots. We show how to set up the problem such that nonlinear optimization methods can be applied efficiently. This involves the introduction of penalizing terms in order to avoid undesired knot positions. We report on our implementation of the nonlinear optimization and we show a way to implement the program in parallel. Parallel performance results are described. Our experiments show that our program has a linear speedup and an efficiency value close to uni

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Randrianarivony, Maharavo, and Guido Brunnett. "Parallel implementation of surface reconstruction from noisy samples." Universitätsbibliothek Chemnitz, 2006. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200600524.

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We consider the problem of reconstructing a surface from noisy samples by approximating the point set with non-uniform rational B-spline surfaces. We focus on the fact that the knot sequences should also be part of the unknown variables that include the control points and the weights in order to find their optimal positions. We show how to set up the free knot problem such that constrained nonlinear optimization can be applied efficiently. We describe in detail a parallel implementation of our approach that give almost linear speedup. Finally, we provide numerical results obtained on the Chemn

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Ettehadi, Seyedrohollah. "Model-based and machine learning techniques for nonlinear image reconstruction in diffuse optical tomography." Thèse, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11895.

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La tomographie optique diffuse (TOD) est une modalité d’imagerie biomédicale 3D peu dispendieuse et non-invasive qui permet de reconstruire les propriétés optiques d’un tissu biologique. Le processus de reconstruction d’images en TOD est difficile à réaliser puisqu’il nécessite de résoudre un problème non-linéaire et mal posé. Les propriétés optiques sont calculées à partir des mesures de surface du milieu à l’étude. Dans ce projet, deux méthodes de reconstruction non-linéaire pour la TOD ont été développées. La première méthode utilise un modèle itératif, une approche encore en développ

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Vo, Thi Minh Nhat. "Construction of a control and reconstruction of a source for linear and nonlinear heat equations." Thesis, Orléans, 2018. http://www.theses.fr/2018ORLE2012/document.

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Dans cette thèse, nous étudions un problème de contrôle et un problème inverse pour les équationsde la chaleur. Notre premier travail concerne la contrôlabilité à zéro pour une équation de la chaleur semi-linéaire. Il est à noter que sans contrôle, la solution est instable et il y aura en général explosion de la solution en un temps fini. Ici, nous proposons un résultat positif de contrôlabilité à zéro sous une hypothèse quantifiée de petitesse sur la donnée initiale. La nouveauté réside en la construction de ce contrôle pour amener la solution à l’état d’équilibre.Notre second travail aborde

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Qi, Yusheng Ph D. Massachusetts Institute of Technology. "Phase-resolved reconstruction and forecast of nonlinear irregular wave field based on direct numerical simulations." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111739.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 241-249).<br>The problem of phase-resolved reconstruction and forecast of ocean wave field based on measurements is of basic scientific interest and practical importance in ocean science and marine engineering. This capability aids and expands the use and interpretation of field and wave basin measurements, contributing to the study of fundamental wave mechanics. It also expands the operational envelope and imp

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Wehrmann, Felix. "On Modelling Nonlinear Variation in Discrete Appearances of Objects." Doctoral thesis, Uppsala University, Centre for Image Analysis, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4234.

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<p>Mathematical models of classes of objects can significantly contribute to the analysis of digital images. A major problem in modelling is to establish suitable descriptions that cover not only a single object but also the variation that is usually present within a class of objects.</p><p>The objective of this thesis is to develop more general modelling strategies than commonly used today. In particular, the impact of the human factor in the model creation process should be minimised. It is presumed that the human ability of abstraction imposes undesired constraints on the description. In co

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Voss, Henning, Jürgen Kurths, and Udo Schwarz. "Reconstruction of grand minima of solar activity from Delta 14 C data : linear and nonlinear signal analysis." Universität Potsdam, 1996. http://opus.kobv.de/ubp/volltexte/2007/1408/.

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Using a special technique of data analysis, we have found out 34 grand minima of solar activity obtained from a 7,700 years long Δ14C record. The method used rests on a proper filtering of the Δ14C record and the extrapolation of verifiable results for the later history back in time. Additionally, we use a method of nonlinear dynamics, the recurrence rate, to back up the results. Our findings are not contradictory to the record of solar maxima resp. minima by Eddy [5], but constitute a considerable extension. Hence, it has become possible to look closer at the validity of models. This way, we

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Forchheimer, Daniel. "Imaging materials with intermodulation : Studies in multifrequency atomic force microscopy." Doctoral thesis, KTH, Nanostrukturfysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-159689.

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The Atomic Force Microscope (AFM) is a tool for imaging surfaces at the microand nano meter scale. The microscope senses the force acting between a surfaceand a tip positioned at the end of a micro-cantilever, forming an image of the surface topography. Image contrast however, arises not only from surface topography, but also from variation in material composition. Improved material contrast, and improved interpretation of that contrast are two issues central to the further development of AFM. This thesis studies dynamic AFM where the cantilever is driven at multiple frequencies simultaneously

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Bautista, Rozo Lola Xiomara. "Reconstruction de phase pour la microscopie à Contraste Interférentiel Différentiel." Thesis, Université Côte d'Azur (ComUE), 2017. http://www.theses.fr/2017AZUR4045/document.

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Dans cette thèse, nous nous intéressons à la microscopie DIC (Differential interference contrast) en couleur. L’imagerie DIC est reconnue pour produire des images à haut contraste et à haute résolution latérale. L'un de ses inconvénients est que les images observées ne peuvent pas être utilisées directement pour l'interprétation topographique et morphologique, car les changements de phase de la lumière, produits par les variations de l'indice de réfraction de l'objet, sont cachés dans l'image d'intensité. Il s’agit donc d’un problème de reconstruction de phase. Nous présentons un modèle de for

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Ni, Fenbiao. "Analysis and reconstruction of the relationship between a circulation anomaly feature and tree rings: Linear and nonlinear approaches." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/284104.

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Tree rings can be reliable recorders of past weather and climate variations. Tree rings from mountain regions can be linked to upper air atmospheric sounding observations and large-scale atmospheric circulation patterns. A "synoptic dendroclimatology" approach is used to define the relationship between tree rings and a specific upper air anomaly feature that affects climate in the western US. I have also reconstructed this anomaly feature using both regression and fuzzy logic approaches. Correlation analysis between 500 mb geopotential heights and tree rings at a site near Eagle, Colorado reve

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Bernardini, Stefano. "Regularization methods for the solution of a nonlinear least-squares problem in tomography." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8975/.

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In this work we study a polyenergetic and multimaterial model for the breast image reconstruction in Digital Tomosynthesis, taking into consideration the variety of the materials forming the object and the polyenergetic nature of the X-rays beam. The modelling of the problem leads to the resolution of a high-dimensional nonlinear least-squares problem that, due to its nature of inverse ill-posed problem, needs some kind of regularization. We test two main classes of methods: the Levenberg-Marquardt method (together with the Conjugate Gradient method for the computation of the descent direction

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Dekdouk, Bachir. "Image reconstruction of low conductivity material distribution using magnetic induction tomography." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/image-reconstruction-of-low-conductivity-material-distribution-using-magnetic-induction-tomography(44d6769d-59b1-44c2-a01e-835f8916f69c).html.

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Magnetic induction tomography (MIT) is a non-invasive, soft field imaging modality that has the potential to map the electrical conductivity (σ) distribution inside an object under investigation. In MIT, a number of exciter and receiver coils are distributed around the periphery of the object. A primary magnetic field is emitted by each exciter, and interacts with the object. This induces eddy currents in the object, which in turn create a secondary field. This latter is coupled to the receiver coils and voltages are induced. An image reconstruction algorithm is then used to infer the conducti

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Schultz, Gerrit [Verfasser], and Jürgen [Akademischer Betreuer] Hennig. "Magnetic resonance imaging with nonlinear gradient fields - signal encoding and image reconstruction = Magnetresonanztomographie mit nichtlinearen Gradientenfeldern - Signalkodierung und Bildrekonstruktion." Freiburg : Universität, 2012. http://d-nb.info/1123471177/34.

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Salehi, Leili [Verfasser], Georg [Gutachter] Schmitz, and Michael [Gutachter] Hübner. "Nonlinear tomographic reconstruction of elastic properties of isotropic solid materials from ultrasound measurements / Leili Salehi ; Gutachter: Georg Schmitz, Michael Hübner." Bochum : Ruhr-Universität Bochum, 2017. http://d-nb.info/112945214X/34.

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Salehi, Leili [Verfasser], Georg Gutachter] Schmitz, and Michael [Gutachter] [Hübner. "Nonlinear tomographic reconstruction of elastic properties of isotropic solid materials from ultrasound measurements / Leili Salehi ; Gutachter: Georg Schmitz, Michael Hübner." Bochum : Ruhr-Universität Bochum, 2017. http://nbn-resolving.de/urn:nbn:de:hbz:294-52083.

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Grau, Leguia Marc. "Automatic reconstruction of complex dynamical networks." Doctoral thesis, Universitat Pompeu Fabra, 2019. http://hdl.handle.net/10803/666631.

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Un problema principal de la ciència de xarxes és com reconstruir (inferir) la topologia d’una xarxa real a partir de senyals mesurades de les seves unitats internes. Entendre la arquitectura d’una xarxa complexa és clau, no només per comprendre el seu funcionament, sinó també per predir i controlar el seu comportament. Els mètodes actualment disponibles es centren principalment en la detecció d’enllaços de xarxes no direccio- nals i sovint requereixen suposicions fortes sobre el sistema. Tanmateix, molts d’aquests mètodes no es poden aplicar a xarxes amb connexions direccionals. Per abordar aq

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Friedrich, Corentin. "Méthodes de reconstruction en tomographie de diffraction 3-D." Thesis, Ecole centrale de Nantes, 2016. http://www.theses.fr/2016ECDN0013.

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Ce travail porte sur la tomographie micro-ondes, technique d’imagerie permettant de reconstruire une image tridimensionnelledes propriétés diélectriques d’un volume inconnu à partir d’une succession de mesures du champ électromagnétique diffracté par ce volume. Cette modalité d’imagerie est prometteuse dans un grand nombre d’applications (imagerie médicale, géophysique,contrôle non destructif de matériaux, ...) mais souffre d’un inconvénient majeur, un coût de calcul très élevé des algorithmes de reconstruction, qui freine son développement industriel. Ce problème d’imagerie micro-ondes est vu

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Er-Rhaimini, Salih. "Reconstruction d'image par rétrodiffusion stimulée Raman et amélioration du rendement de conversion." Angers, 1995. http://www.theses.fr/1995ANGE0007.

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La rétrodiffusion Raman stimulée peut être utilisée pour différentes applications, en particulier la fabrication des fréquences laser nouvelles et conjugaison de phase. Dans notre travail, nous montrons qu'il est possible de transférer sur le rayonnement Raman stimule l'image d'un objet éclairé par un faisceau laser avec de bons rendements de conversion. Nous améliorons d'abord le rendement de rétrodiffusion en choisissant des matériaux actifs (exemple : l'acétone) et des conditions géométriques d'excitation convenables. Nous trouvons les conditions géométriques et énergétiques pour un bon tra

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Voronenko, Sergej Olegovic. "Nonlinear signal processing by noisy spiking neurons." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/18793.

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Neurone sind anregbare Zellen, die mit Hilfe von elektrischen Signalen miteinander kommunizieren. Im allgemeinen werden eingehende Signale von den Nervenzellen in einer nichtlinearen Art und Weise verarbeitet. Wie diese Verarbeitung in einer umfassenden und exakten Art und Weise mathematisch beschrieben werden kann, ist bis heute nicht geklärt und ist Gegenstand aktueller Forschung. In dieser Arbeit untersuchen wir die nichtlineare Übertragung und Verarbeitung von Signalen durch stochastische Nervenzellen und wenden dabei zwei unterschiedliche Herangehensweisen an. Im ersten Teil der Arbeit be

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Desmars, Nicolas. "Reconstruction et prédiction en temps réel de champs de vagues par télédétection optique." Thesis, Ecole centrale de Nantes, 2020. http://www.theses.fr/2020ECDN0036.

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Les recherches présentées dans le cadre de cette thèse portent sur le traitement de mesures par télédétection optique de la surface océanique en vue de la prédiction de champs de vagues au voisinage d’une structure marine, information cruciale pour l’analyse et le contrôle d’une large gamme d’opérations en mer. Elles visent notamment à inclure, à moindre coût calcul, la modélisation de phénomènes nonlinéaires, conservant une représentation réaliste de la surface en cas d’état de mer sévère. Une approche Lagrangienne faiblement nonlinéaire (ICWM), dont les propriétéshydrodynamiques sont étudiée

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Holme, Hans Christian Martin [Verfasser], Martin [Akademischer Betreuer] Uecker, Martin [Gutachter] Uecker, Stefan [Gutachter] Luther, and Herbert [Gutachter] Köstler. "Higher-Dimensional Extensions of Nonlinear Inverse Reconstruction for Magnetic Resonance Imaging / Hans Christian Martin Holme ; Gutachter: Martin Uecker, Stefan Luther, Herbert Köstler ; Betreuer: Martin Uecker." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1204255911/34.

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Ting, Samuel T. "An Efficient Framework for Compressed Sensing Reconstruction of Highly Accelerated Dynamic Cardiac MRI." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1452164320.

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Herrmann, Felix J. "Seismology meets compressive sampling." Institute for Pure & Applied Mathematics. University of California, Los Angeles, 2007. http://hdl.handle.net/2429/603.

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Hong, Je Hyeong. "Widening the basin of convergence for the bundle adjustment type of problems in computer vision." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/275067.

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Bundle adjustment is the process of simultaneously optimizing camera poses and 3D structure given image point tracks. In structure-from-motion, it is typically used as the final refinement step due to the nonlinearity of the problem, meaning that it requires sufficiently good initialization. Contrary to this belief, recent literature showed that useful solutions can be obtained even from arbitrary initialization for fixed-rank matrix factorization problems, including bundle adjustment with affine cameras. This property of wide convergence basin of high quality optima is desirable for any nonli

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Damle, Chaitanya. "Flood forecasting using time series data mining." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001038.

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Simoni, Andreia Raquel. "Análise de séries temporais aeroelásticas experimentais não lineares." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/18/18148/tde-12062008-113731/.

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A análise de sistemas dinâmicos não lineares pode ser baseada em séries obtidas de modelos matemáticos ou de experimentos. Modelos matemáticos para respostas aeroelásticas associadas ao estol dinâmico são muito difíceis de obter. Neste caso, experimentos e ensaios em vôo parecem fornecer uma base mais apropriada para a análise da dinâmica não linear. Técnicas de sistemas dinâmicos baseadas em análise de séries temporais podem ser aplicadas para a aeroelasticidade não linear. Quando tem-se disponível apenas séries experimentais, as técnicas de reconstrução do espaço de estados têm sido extensiv

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Leckler, Fabien. "Observation et modélisation du déferlement des vagues." Thesis, Brest, 2013. http://www.theses.fr/2013BRES0079/document.

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Les récentes paramétrisations utilisées dans les modèles spectraux de vagues offrent des résultats intéressants en termes de prévision et rejeux des états de mer. Cependant, de nombreux phénomènes physiques présents dans ces modèles sont encore mal compris et donc mal modélisés, notamment le terme de dissipation lié au déferlement des vagues.Le travail présenté dans cette thèse vise dans un premier temps à analyser et critiquer les paramétrisations existantes de la dissipation, au travers de la modélisation explicite des propriétés du déferlement sous-jacentes. Du constat de l’échec de ces par

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Swain, David James. "Enhancing and Reconstructing Digitized Handwriting." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36904.

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This thesis involves restoration, reconstruction, and enhancement of a digitized library of hand-written documents. Imaging systems that perform this digitization often degrade the quality of the original documents. Many techniques exist for reconstructing, restoring, and enhancing digital images; however, many require <i> a priori </i> knowledge of the imaging system. In this study, only partial <i> a priori </i> knowledge is available, and therefore unknown parameters must be estimated before restoration, reconstruction, or enhancement is possible. The imaging system used to digitize the

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Sobrinho, Fernando Araujo de Andrade. "Detecção de patologias em pregas vocais utilizando a seção Poincaré do espaço de fase tridimensional de um sinal de voz." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18153/tde-05012017-141759/.

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Diversos estudos foram realizados para detecção de patologias na laringe. Essas patologias causam alteração na frequência, amplitude e formato de onda do sinal de voz e podem ser estudadas através dos parâmetros convencionais de análise como jitter e shimmer, ou sob o enfoque da dinâmica não linear. Essas técnicas são não invasivas e servem de apoio ao especialista da área de fonoaudiologia para o diagnóstico de patologias nas pregas vocais. As técnicas de análise acústica baseiam-se no formato de onda vocal no domínio do tempo e domínio da frequência, enquanto que a técnica de análise não lin

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Dajer, Maria Eugenia. "Análise de sinais de voz por padrões visuais de dinâmica vocal." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18152/tde-15092010-102656/.

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O objetivo deste trabalho foi avaliar vozes saudáveis e com alterações patológicas aplicando análise de Padrões Visuais de Dinâmica Vocal (PVDV) em conjunto com análise acústica e análise perceptivo-auditiva. Foram avaliadas 91 vozes da vogal sustentada /a/ do português do Brasil, de sujeitos de ambos os gêneros com idades entre 21 e 88 anos. As vozes foram gravadas com taxa de amostragem de 22.050 Hz, 16 bits, mono canal e formato WAV. Foram obtidos valores de jitter, shimmer e freqüência fundamental. Para análise perceptivo-auditiva foram avaliadas rugosidade, soprosidade, tensão e instabili

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Henter, Gustav Eje. "Probabilistic Sequence Models with Speech and Language Applications." Doctoral thesis, KTH, Kommunikationsteori, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-134693.

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Series data, sequences of measured values, are ubiquitous. Whenever observations are made along a path in space or time, a data sequence results. To comprehend nature and shape it to our will, or to make informed decisions based on what we know, we need methods to make sense of such data. Of particular interest are probabilistic descriptions, which enable us to represent uncertainty and random variation inherent to the world around us. This thesis presents and expands upon some tools for creating probabilistic models of sequences, with an eye towards applications involving speech and language.

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Liška, Jaroslav. "Rekonstrukce visuté lávky v Kroměříži." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409798.

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The Diploma thesis deals with the reconstruction design of a footbridge in the city of Kroměříž, Czech Republic. The footbridge would serve as safe transport for pedestrians over the Morava river. The main objective of the thesis is to conceive two or three reconstruction designs. The most suitable one will be opted for and elaborated in more detail. Eventually, strengthening of the bridge by means of additional prestressing using mono-strand post-tensioning systems is picked as the best solution of the planned reconstruction. The monostrand post-tensioning system is led under the deck, the cr

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Sun, Ding-Fook. "Mathematical modelling of human skin as a membrane in tension : derivation of finite element solutions for the geometrically and materially nonlinear membrane equations and the consideration of their application to reconstructive surgery." Thesis, University of Bradford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236491.

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Desmal, Abdulla. "Sparse Reconstruction Schemes for Nonlinear Electromagnetic Imaging." Diss., 2016. http://hdl.handle.net/10754/602275.

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Electromagnetic imaging is the problem of determining material properties from scattered fields measured away from the domain under investigation. Solving this inverse problem is a challenging task because (i) it is ill-posed due to the presence of (smoothing) integral operators used in the representation of scattered fields in terms of material properties, and scattered fields are obtained at a finite set of points through noisy measurements; and (ii) it is nonlinear simply due the fact that scattered fields are nonlinear functions of the material properties. The work described in this thesi

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Uecker, Martin. "Nonlinear Reconstruction Methods for Parallel Magnetic Resonance Imaging." Doctoral thesis, 2009. http://hdl.handle.net/11858/00-1735-0000-0006-B3C6-3.

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Andía, Blanca I. "Nonstationary and nonlinear sinogram filtering for tomographic image reconstruction." 2003. http://etd.nd.edu/ETD-db/theses/available/etd-06132003-154222/.

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HOU, ZHI-RONG, and 侯智容. "A nonlinear interpolation technique for reconstruction of 3D medical images." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/24313065458984866691.

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Lee, Ann-Shu, and 李安旭. "3D Image Reconstruction of Bladder and Prostate by Nonlinear Interpolation." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/68278066105680603654.

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Chan, Ming-Yao, and 詹銘堯. "Parameter Estimation and Flight Trajectory Reconstruction of Nonlinear Flight Dynamic System." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/40676830848025507660.

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碩士<br>國立成功大學<br>航空太空工程學系<br>85<br>The objective of the present research is to develop a software system that can perform parameter estimation and flight trajectory reconstruction for a general nonlinear flight dynamics system. Owing to the atmospheric turbulence and the process and measurement noise existing in the system, the maximum-likelihood method was used as the analysis tool to identify the biases and the scale factors encountered in the measurements. Gauss-Newton iteration metho

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Uecker, Martin [Verfasser]. "Nonlinear reconstruction methods for parallel magnetic resonance imaging / vorgelegt von Martin Uecker." 2009. http://d-nb.info/999514067/34.

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Chen, Cheng-Yu, and 陳政宇. "ENHANCING PAPULIS-GERCHBERG ALGORITHM -BASED RECONSTRUCTION FOR OFDM NONLINEAR SIGNALS BY MODIFIED HARD-DECISION." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/v67xw2.

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碩士<br>大同大學<br>通訊工程研究所<br>106<br>With the well underway development, 5G (Fifth-Generation mobile networks) networks are expected to launch across the world by 2020. The networks will help rising the Internet of Things (IoT) technology, providing the infrastructure needed to carry huge amounts of data, allowing for a smarter and more connected world. Due to the high spectrum efficiency and the strong resistance to the multi-path fading, OFDM (Orthogonal Frequency Division Multiplexing) was chosen as the waveform in the 5G (Fifth-Generation mobile networks) mobile communication. However, as a mul

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Hou, Hsiang-Wen, and 侯翔文. "A System on Chip Design of Diffuse Optical Tomography Based on Three Dimensional Nonlinear Hexagonal Reconstruction Algorithm." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/w3sx44.

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碩士<br>國立交通大學<br>電子工程學系電子研究所<br>104<br>According to the statistics of Ministry of Health and Welfare (MOHW) released information in 2012. The top ten female cancer incidence rates reveal that the breast cancer is the first and still sustainable growth. Since Diffuse Optical Tomography (DOT) optical properties can be used to show the location of breast foreign body, the relative research has become an important issue in recent years. In view of the majority of DOT literatures are two dimensional imaging and measuring depth is not deep, therefore, this research is to develop a three-dimensional

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Zhang, Zhongshuai. "Dynamic Temperature Mapping - Real-time Strategies and Model-based Reconstructions." Doctoral thesis, 2016. http://hdl.handle.net/11858/00-1735-0000-002B-7D36-1.

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