Log in

Relevant bibliographies by topics / Hybrid Transforms / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Hybrid Transforms.

Dissertations / Theses on the topic 'Hybrid Transforms'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Hybrid Transforms.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Wien, Mathias [Verfasser]. "Variable Block-Size Transforms for Hybrid Video Coding / Mathias Wien." Aachen : Shaker, 2004. http://d-nb.info/1172614245/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Barrera, Cruz Marco Antonio. "Hybrid method algebraic/inverse radon transform for region of interest reconstruction of computed tomography images /." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Palmer, Joseph McRae. "The Hybrid Architecture Parallel Fast Fourier Transform (HAPFFT) /." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd855.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Palmer, Joseph M. "The Hybrid Architecture Parallel Fast Fourier Transform (HAPFFT)." BYU ScholarsArchive, 2005. https://scholarsarchive.byu.edu/etd/555.

Full text

Abstract:

The FFT is an efficient algorithm for computing the DFT. It drastically reduces the cost of implementing the DFT on digital computing systems. Nevertheless, the FFT is still computationally intensive, and continued technological advances of computers demand larger and faster implementations of this algorithm. Past attempts at producing high-performance, and small FFT implementations, have focused on custom hardware (ASICs and FPGAs). Ultimately, the most efficient have been single-chipped, streaming I/O, pipelined FFT architectures. These architectures increase computational concurrency throug

APA, Harvard, Vancouver, ISO, and other styles

5

Smailes, Michael Edward. "Hybrid HVDC transformer for multi-terminal networks." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31173.

Full text

Abstract:

There is a trend for offshore wind farms to move further from the point of common coupling to access higher and more consistent wind speeds to reduce the levelised cost of energy. To accommodate these rising transmission distances, High Voltage Direct Current (HVDC) transmission has become increasingly popular. However, existing HVDC wind farm topologies and converter systems are ill suited to the demands of offshore operation. The HVDC and AC substations have been shown to contribute to more than 20% of the capital cost of the wind farm and provide a single point of failure. Therefore, many w

APA, Harvard, Vancouver, ISO, and other styles

6

Huang, Shiping. "Active mains supply harmonic filtering." Thesis, University of Sussex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309440.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

McConville, Carmel M. "The effect of cytochalasin B on normal, transformed and hybrid cells." Thesis, Queen's University Belfast, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329370.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Bekker, Dmitriy L. "Hardware and software optimization of Fourier transform infrared spectrometry on hybrid-FPGAs /." Online version of thesis, 2007. http://hdl.handle.net/1850/4805.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Peck, Minsok. "Adaptive hybrid (motion compensated interframe transform) coding technique for multiframe image data." Ohio : Ohio University, 1987. http://www.ohiolink.edu/etd/view.cgi?ohiou1183057129.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Lee, Soon Gie. "Hybrid Damage Identification Based on Wavelet Transform and Finite Element Model Updating." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1333676433.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

CARRARO, CINTIA DE FARIA FERREIRA. "HYBRID SYSTEM FOR RULE EXTRACTION APPLIED TO DIAGNOSIS OF POWER TRANSFORMERS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2012. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=20756@1.

Full text

Abstract:

PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>Este trabalho tem como objetivo construir um classificador baseado em regras de inferência fuzzy, as quais são extraídas a partir de máquinas de vetor suporte (SVMs) e ajustadas com o auxílio de um algoritmo genético. O classificador construído visa a diagnosticar transformadores de potência. As SVMs são sistemas de aprendizado baseados na teoria do aprendizado estatístico e apresentam boa habilidade de generalização em conjuntos de dados reais. SVMs, da mesma forma que redes neurais (RN), geram um modelo caixa preta, isto é, um modelo que

APA, Harvard, Vancouver, ISO, and other styles

12

Lee, Kenneth Ka Chun. "Hybrid transform, spatial decorrelation and unified coding system for image and video compression /." access abstract and table of contents access full-text, 2004. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?phd-cs-b21471381a.pdf.

Full text

Abstract:

Thesis (Ph.D.)--City University of Hong Kong, 2004.<br>"Submitted to Department of Computer Science in partial fulfillment of the requirements for the degree of Doctor of Philosophy" Includes bibliographical references (leaves 145-158)

APA, Harvard, Vancouver, ISO, and other styles

13

Robert, Antoine. "Transformées orientées par blocs pour le codage vidéo hybride." Phd thesis, Paris, ENST, 2008. https://pastel.hal.science/pastel-00003631.

Full text

Abstract:

Cette thèse s'intéresse à améliorer les codeurs vidéo actuels en utilisant des informations structurelles des images. Les transformées classiques (DCT, ondelettes,. . . ) ne représentent pas efficacement les structures géométriques dont l'état de l'art est porté historiquement par les ondelettes de seconde génération. D’autres études sont basées DCT avec des orientations afin de représenter ces contours. L'objectif est d'améliorer le codage des images résiduelles H. 264/AVC (spatiales ou temporelles) en utilisant leurs structures géométriques. Pour cela, une méthode d'orientation par pré- et p

APA, Harvard, Vancouver, ISO, and other styles

14

Robert, Antoine. "Transformées orientées par blocs pour le codage vidéo hybride." Phd thesis, Télécom ParisTech, 2008. http://pastel.archives-ouvertes.fr/pastel-00003631.

Full text

Abstract:

Cette thèse s'intéresse à améliorer les codeurs vidéo actuels tels que H.264 MPEG-4/AVC en utilisant avantageusement des informations structurelles contenues dans les images codées. Dans ce contexte, on observe que tous codeurs vidéo utilisent une étape de transformation permettant de décorréler mathématiquement les informations traitées afin d'en diminuer le coût de codage entropique. D'autre part, on remarque que toutes les images traitées qu'elles soient prédites ou non, possèdent des structures géométriques très marquées. Une étude des transformées existantes et possibles pour ces codeurs

APA, Harvard, Vancouver, ISO, and other styles

15

Kito, Y., H. Okubo, N. Hayakawa, Y. Mita, and M. Yamamoto. "Development of a 6600 V/210 V kVA hybrid-type superconducting transformer." IEEE, 1991. http://hdl.handle.net/2237/6880.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Madishetty, Suresh. "Design of Multi-Beam Hybrid Digital Beamforming Receivers." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1545178805415923.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Seppecher, Laurent. "Modélisation de l'imagerie biomédicale hybride par perturbations mécaniques." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2014. http://tel.archives-ouvertes.fr/tel-01021279.

Full text

Abstract:

Dans cette thèse, nous introduisons et développons une approche mathématiques originale des techniques d'imagerie biomédicales dites "hybrides". L'idée et d'appliquer une méthode d'imagerie mal posée, tout en perturbant le milieu à imager par des déplacements mécaniques. Ces déplacements provenant d'une équation de type onde élastique perturbent les mesures effectuées. En utilisant ces mesures perturbées, et profitant du caractère local des perturbations mécaniques, il est possible d'augmenter considérablement la résolution de la méthode de base. Le problème direct est donc un couplage d'une E

APA, Harvard, Vancouver, ISO, and other styles

18

Blumenthal, Robert E. "A study of Hadamard transform, DPCM, and entropy coding techniques for a realizable hybrid video source coder /." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65518.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Valach, Ondřej. "Hybridní mikrofonní předzesilovač." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400858.

Full text

Abstract:

The diploma thesis deals with the design of hybrid microphone preamplifier with stepless choice of amplification technology between active part using tube or semiconductor elements. Before the design, the basic physical relations of electroacoustics were described. Problems of connection of audio devices, their voltage and noise conditions. At last technical properties of microphones and tubes were described. In the practical part, the overall structure of the hybrid preamplifier is designed and the goals of the thesis are set. This is followed by a detailed design of the preamplifiers. From i

APA, Harvard, Vancouver, ISO, and other styles

20

McCool, Christopher Steven. "Hybrid 2D and 3D face verification." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/16436/1/Christopher_McCool_Thesis.pdf.

Full text

Abstract:

Face verification is a challenging pattern recognition problem. The face is a biometric that, we as humans, know can be recognised. However, the face is highly deformable and its appearance alters significantly when the pose, illumination or expression changes. These changes in appearance are most notable for texture images, or two-dimensional (2D) data. But the underlying structure of the face, or three dimensional (3D) data, is not changed by pose or illumination variations. Over the past five years methods have been investigated to combine 2D and 3D face data to improve the acc

APA, Harvard, Vancouver, ISO, and other styles

21

McCool, Christopher Steven. "Hybrid 2D and 3D face verification." Queensland University of Technology, 2007. http://eprints.qut.edu.au/16436/.

Full text

Abstract:

Face verification is a challenging pattern recognition problem. The face is a biometric that, we as humans, know can be recognised. However, the face is highly deformable and its appearance alters significantly when the pose, illumination or expression changes. These changes in appearance are most notable for texture images, or two-dimensional (2D) data. But the underlying structure of the face, or three dimensional (3D) data, is not changed by pose or illumination variations. Over the past five years methods have been investigated to combine 2D and 3D face data to improve the accuracy an

APA, Harvard, Vancouver, ISO, and other styles

22

Rifaai, Yasser. "Rhéologie des matrices hybrides composées de ciment et d’ajouts cimentaires activés." Thesis, CY Cergy Paris Université, 2020. http://www.theses.fr/2020CYUN1069.

Full text

Abstract:

Face aux préoccupations environnementales liées à la production du ciment Portland, la recherche d’alternatives pour une construction plus durable s’avère une nécessité. En effet, la production du ciment est responsable de l’augmentation du potentiel de réchauffement global (PRG), ce qui remet en question sa grande utilisation de point de vue environnemental. Dans cette perspective, ce projet de doctorat s’inscrit dans l’optique de la réduction de l’impact environnemental des matériaux de construction, notamment les bétons fluides à rhéologie adaptée. Les géopolymères se présentent comme l’une

APA, Harvard, Vancouver, ISO, and other styles

23

Da, Silva Joao Lucas. "Design and control of a multicell interleaved converter for a hybrid photovoltaic-wind generation system." Phd thesis, Toulouse, INPT, 2017. http://oatao.univ-toulouse.fr/19318/7/DASILVA_JoaoLucas.pdf.

Full text

Abstract:

The solution for the generating energy derived from non-polluting sources configures a worldwide problem, which is undetermined, complex, and gradual; and certainly, passes through the diversification of the energetic matrix. Diversification means not only having different sources converted into useful energy, like the electricity, but also decentralizing the energy generation in order to fit with higher adequacy the demand, which is decentralized too. Distributed Generation proposes this sort of development but in order to increase its penetration several technical barriers must be overpassed

APA, Harvard, Vancouver, ISO, and other styles

24

Roe, Curtis Aaron. "Power system impacts of plug-in hybrid electric vehicles." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29636.

Full text

Abstract:

Thesis (M. S.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Dr. A. P. Meliopoulos; Committee Member: Dr. David Taylor; Committee Member: Dr. Ronald Harley; Committee Member: Dr. Shijie Deng. Part of the SMARTech Electronic Thesis and Dissertation Collection.

APA, Harvard, Vancouver, ISO, and other styles

25

Abdelgayed, Mohamed E. "Design and Control the Ancillary System for Hydraulic Hybrid Vehicle (HHV)." University of Toledo / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1278075678.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Radi, Mohammed A. M. "Power electronics considerations for voltage regulation and VAR control approaches in LV distribution networks-hybrid power electronic modules." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/14697.

Full text

Abstract:

The future substation depends on finding a way to mitigate the effects of the drawbacks of the conventional legacy by employing the efficiency of the solid state switches in light of changing the loading features by time such as Electrical Vehicles (EV) and Photo-voltaic (PV) cells. In distribution transformers the ratio between the primary voltage and the secondary voltage cannot be changed, and the use of the on-load taps changers are limited. Poor voltage regulation and reactive power transmission is a direct reason for losses and shortening the life of several devices. This research discus

APA, Harvard, Vancouver, ISO, and other styles

27

Xu, Yangyi. "Frequentist-Bayesian Hybrid Tests in Semi-parametric and Non-parametric Models with Low/High-Dimensional Covariate." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/71285.

Full text

Abstract:

We provide a Frequentist-Bayesian hybrid test statistic in this dissertation for two testing problems. The first one is to design a test for the significant differences between non-parametric functions and the second one is to design a test allowing any departure of predictors of high dimensional X from constant. The implementation is also given in construction of the proposal test statistics for both problems. For the first testing problem, we consider the statistical difference among massive outcomes or signals to be of interest in many diverse fields including neurophysiology, imaging, e

APA, Harvard, Vancouver, ISO, and other styles

28

Gulko, Ilya Dmitrievich. "Ns Pulse / RF Hybrid Plasmas for Plasma Chemistry and Plasma Assisted Catalysis Applications." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1598271986860656.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Abdallah, Abdallah Sabry. "Investigation of New Techniques for Face detection." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/33191.

Full text

Abstract:

The task of detecting human faces within either a still image or a video frame is one of the most popular object detection problems. For the last twenty years researchers have shown great interest in this problem because it is an essential pre-processing stage for computing systems that process human faces as input data. Example applications include face recognition systems, vision systems for autonomous robots, human computer interaction systems (HCI), surveillance systems, biometric based authentication systems, video transmission and video compression systems, and content based image retrie

APA, Harvard, Vancouver, ISO, and other styles

30

Gu, Bin. "Power Converter and Control Design for High-Efficiency Electrolyte-Free Microinverters." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/25236.

Full text

Abstract:

Microinverter has become a new trend for photovoltaic (PV) grid-tie systems due to its advantages which include greater energy harvest, simplified system installation, enhanced safety, and flexible expansion. Since an individual microinverter system is typically attached to the back of a PV module, it is desirable that it has a long lifespan that can match PV modules, which routinely warrant 25 years of operation. In order to increase the life expectancy and improve the long-term reliability, electrolytic capacitors must be avoided in microinverters because they have been identified as an unre

APA, Harvard, Vancouver, ISO, and other styles

31

Banks, Jasmine. "Reliability analysis of transform-based stereo matching techniques, and a new matching constraint." Thesis, Queensland University of Technology, 2000. https://eprints.qut.edu.au/36106/6/Jasmine%20Banks_Digitised_Thesis.pdf.

Full text

Abstract:

Stereo vision is a method of depth perception, in which depth information is inferred from two (or more) images of a scene, taken from different perspectives. Practical applications for stereo vision include aerial photogrammetry, autonomous vehicle guidance, robotics and industrial automation. The initial motivation behind this work was to produce a stereo vision sensor for mining automation applications. For such applications, the input stereo images would consist of close range scenes of rocks. A fundamental problem faced by matching algorithms is the matching or correspondence problem.

APA, Harvard, Vancouver, ISO, and other styles

32

Ronquist, Anton, and Birger Winroth. "Estimation and Compensation of Load-Dependent Position Error in a Hybrid Stepper Motor." Thesis, Linköpings universitet, Reglerteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129554.

Full text

Abstract:

Hybrid stepper motors are a common type of electric motor used throughout industry thanks to its low-cost, high torque at low speed and open loop positioning capabilities. However, a closed loop control is often required for industrial applications with high precision requirements. The closed loop control can also be used to lower the power consumption of the motor and ensure that stalls are avoided. It is quite common to utilise a large and costly position encoder or resolver to feedback the position signal to the control logic. This thesis has explored the possibility of using a low-cost pos

APA, Harvard, Vancouver, ISO, and other styles

33

Selim, Hossam. "Hybrid non-destructive technique for volumetric defect analysis and reconstruction by remote laser induced ultrasound." Doctoral thesis, Universitat Politècnica de Catalunya, 2020. http://hdl.handle.net/10803/669481.

Full text

Abstract:

This PhD thesis is devoted to the design, development and implementation of a non-contact hybrid non-destructive testing (NDT) method applied to the analysis of metallic objects that contain embedded defects or fractures. We propose a hybrid opto-acoustic technique that combines laser generated ultrasound as exciter and ultrasound transducers as receivers. This work envisages a detailed study of the detection and one, two or three-dimensional reconstruction of defects, using the proposed hybrid technique and its application as a remotely controlled non-contact NDT. Our device combines several

APA, Harvard, Vancouver, ISO, and other styles

34

Phan, Leon L. "A methodology for the efficient integration of transient constraints in the design of aircraft dynamic systems." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34750.

Full text

Abstract:

Transient regimes experienced by dynamic systems may have severe impacts on the operation of the aircraft. They are often regulated by dynamic constraints, requiring the dynamic signals to remain within bounds whose values vary with time. The verification of these peculiar types of constraints, which generally requires high-fidelity time-domain simulation, intervenes late in the system development process, thus potentially causing costly design iterations. The research objective of this thesis is to develop a methodology that integrates the verification of dynamic constraints in the early spe

APA, Harvard, Vancouver, ISO, and other styles

35

Huberdeau, Denise. "Caractérisation d'un produit d'excision hybride nommé Rm II obtenu dans un clone (S48) de cellules permissives transformées par le virus du polyome." Mémoire, Université de Sherbrooke, 1985. http://hdl.handle.net/11143/11679.

Full text

Abstract:

Nous avons caractérisé une molécule d'ADN hybride virale-cellulaire, nommée Rm II, produite par un clone de cellules permissives transformées par le virus du polyome tsP155 (la lignée cellulaire Cyp). Rm II doit son intérêt au fait qu'elle est un autre produit d'excision obtenu dans les cellules Cyp lors d'un simple tranfert de 39°C à 33°C (induction) et qu'elle contient une portion cellulaire emportée lors de l'excision du génome viral intégré plus importante que celle de Rm I, molécule à laquelle s'apparente Rm II et très extensivement étudiée dans notre laboratoire. L'obtention facile de Rm

APA, Harvard, Vancouver, ISO, and other styles

36

Hamdane, Malika. "Activation de la protéine P65NF- kB dans les cellules transformées par la protéine hybride P210BCR-ABL : étude dans la lignée myéloïde DA1." Lille 1, 1996. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/1996/50376-1996-412.pdf.

Full text

Abstract:

La protéine p210bcr-abl possède une activité tyrosine kinase élevée associée a son pouvoir oncogénique. L'implication de cette protéine dans la genèse de la leucémie myéloïde chronique a été montrée in vitro et in vivo mais son mécanisme d'action n'est pas élucide. Notre travail, se situant dans le cadre de l'étude des voies signalétiques, s'est porte sur l'identification d'effecteurs de la protéine p210bcr-abl. Nous nous sommes intéresses plus particulièrement a la famille des facteurs de transcription Rel/nf-kappab, en utilisant comme modelé d'étude la lignée cellulaire murine da1 dérivant d

APA, Harvard, Vancouver, ISO, and other styles

37

Mora, Pierric. "Réponse élastodynamique d'une plaque stratifiée anisotrope : approches comparées. : Vers le développement de méthodes hybrides." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0382/document.

Full text

Abstract:

Cette thèse traite de la résolution du problème direct de propagation d'un champ élastodynamique rayonné par une source dans un milieu stratifié anisotrope. Le contexte applicatif visé est le contrôle non destructif par ondes ultrasonores guidées de plaques de matériaux composites. Aux basses fréquences, ces matériaux sont assimilables à des milieux homogènes, anisotropes et dissipatifs. Deux approches causales sont étudiées et mises en oeuvre pour résoudre l'équation d'onde, et leur intérêt vis-à-vis de la méthode modale harmonique - la plus couramment employée dans ce domaine applicatif - es

APA, Harvard, Vancouver, ISO, and other styles

38

Silva, Carlos Alves da. "Experiências do desenvolvimento de transformador para alta temperatura baseado em isolação semi-híbrida e óleo vegetal isolante." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-16062016-105831/.

Full text

Abstract:

O transformador de potência é um importante equipamento utilizado no sistema elétrico de potência, responsável por transmitir energia elétrica ou potência elétrica de um circuito a outro e transformar tensões e correntes de um circuito elétrico. O transformador de potência tem ampla aplicação, podendo ser utilizado em subestações de usinas de geração, transmissão e distribuição. Neste sentido, mudanças recentes ocorridas no sistema elétrico brasileiro, causadas principalmente pelo aumento considerável de carga e pelo desenvolvimento tecnológico tem proporcionado a fabricação de um transformado

APA, Harvard, Vancouver, ISO, and other styles

39

Gastal, Eduardo Simões Lopes. "Efficient high-dimensional filtering for image and video processing." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/118258.

Full text

Abstract:

Filtragem é uma das mais importantes operações em processamento de imagens e vídeos. Em particular, filtros de altas dimensões são ferramentas fundamentais para diversas aplicações, tendo recebido recentemente significativa atenção de pesquisadores da área. Infelizmente, implementações ingênuas desta importante classe de filtros são demasiadamente lentas para muitos usos práticos, especialmente tendo em vista o aumento contínuo na resolução de imagens capturadas digitalmente. Esta dissertação descreve três novas abordagens para filtragem eficiente em altas dimensões: a domain transform, os ada

APA, Harvard, Vancouver, ISO, and other styles

40

Vegh, Viktor. "Numerical modelling of industrial microwave heating." Thesis, Queensland University of Technology, 2003. https://eprints.qut.edu.au/37144/7/37144_Digitised%20Thesis.pdf.

Full text

Abstract:

The numerical modelling of electromagnetic waves has been the focus of many research areas in the past. Some specific applications of electromagnetic wave scattering are in the fields of Microwave Heating and Radar Communication Systems. The equations that govern the fundamental behaviour of electromagnetic wave propagation in waveguides and cavities are the Maxwell's equations. In the literature, a number of methods have been employed to solve these equations. Of these methods, the classical Finite-Difference Time-Domain scheme, which uses a staggered time and space discretisation, is the mos

APA, Harvard, Vancouver, ISO, and other styles

41

Silva, Murilo da. "Implementação de um localizador de faltas híbrido para linhas de transmissão com três terminais baseado na transformada wavelet." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-11042008-110740/.

Full text

Abstract:

Este trabalho apresenta o estudo e o desenvolvimento de um algoritmo híbrido para detecção, classificação e localização de faltas em sistemas com três terminais utilizando como principal ferramenta a transformada wavelet (TW) em suas versões discreta (TWD) e estacionária (TWE). O algoritmo é dito híbrido, pois alia duas metodologias para localizar a falta. A primeira baseada na análise de componentes de alta freqüência (ondas viajantes) e a segunda, baseada na extração dos componentes fundamentais para o cálculo da impedância aparente. A metodologia proposta foi concebida de maneira a trabalha

APA, Harvard, Vancouver, ISO, and other styles

42

Moinard, Matthieu. "Codage vidéo hybride basé contenu par analyse/synthèse de données." Phd thesis, Telecom ParisTech, 2011. http://tel.archives-ouvertes.fr/tel-00830924.

Full text

Abstract:

Les travaux de cette thèse sont destinés à la conception d'outils algorithmiques permettant d'accroître le facteur de compression des standards actuels de codage vidéo, tels que H.264/AVC. Pour cela, une étude préalable portant sur un ensemble de méthodes de restauration d'image a permis d'identifier et d'inspecter deux axes de recherche distincts. La première partie est fondée sur des méthodes d'analyse et de synthèse de texture. Ce type de procédé, aussi connu sous le nom de template matching, est couramment utilisé dans un contexte de codage vidéo pour prédire une portion de la texture de l

APA, Harvard, Vancouver, ISO, and other styles

43

Faucher, Florian. "Etude par spectroscopie infrarouge in situ et operando des relations entre les propriétés des sites d'adsorption de solides hybrides organiques-inorganiques (MOFs) et leurs propriétés catalytiques pour des réactions modèles." Caen, 2016. http://www.theses.fr/2016CAEN2039.

Full text

Abstract:

Ce travail rapporte la caractérisation par spectroscopie infrarouge de trois solides poreux organiques-inorganiques de type MOF (Metal Organic Framework) dénommés MIL-100(X) (MIL : Matériaux de l’Institut Lavoisier) avec X= Al3+, Fe3+ et Cr3+. Les deux premières parties décrivent l’étude du MIL-100(Fe) synthétisé selon deux modes de préparation différents. Il est montré que la réduction des centres métalliques Fe3+ en sites Fe2+CUS du matériau résulte d'une décarboxylation réductrice du ligand trimésate. De plus, le MIL-100(Fe) synthétisé à partir de nitrate de Fer révèle l'existence de groupe

APA, Harvard, Vancouver, ISO, and other styles

44

Dib, Leonardo de Mello Brandão Abdo. "Multichirp code division multiple access for smart grids and internet of things." Universidade Federal de Juiz de Fora (UFJF), 2018. https://repositorio.ufjf.br/jspui/handle/ufjf/6687.

Full text

Abstract:

Submitted by Geandra Rodrigues (geandrar@gmail.com) on 2018-04-18T18:59:28Z No. of bitstreams: 1 Leonardodemellobrandaoabdodib.pdf: 1435361 bytes, checksum: 5e9afeb4cc3aff2697cb2afe973ab9ca (MD5)<br>Rejected by Adriana Oliveira (adriana.oliveira@ufjf.edu.br), reason: on 2018-04-19T13:20:42Z (GMT)<br>Submitted by Geandra Rodrigues (geandrar@gmail.com) on 2018-04-19T13:31:11Z No. of bitstreams: 1 leonardodemellobrandaoabdodib.pdf: 1435361 bytes, checksum: 5e9afeb4cc3aff2697cb2afe973ab9ca (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2018-04-19T13

APA, Harvard, Vancouver, ISO, and other styles

45

Nassar, Alaa S. N. "A Hybrid Multibiometric System for Personal Identification Based on Face and Iris Traits. The Development of an automated computer system for the identification of humans by integrating facial and iris features using Localization, Feature Extraction, Handcrafted and Deep learning Techniques." Thesis, University of Bradford, 2018. http://hdl.handle.net/10454/16917.

Full text

Abstract:

Multimodal biometric systems have been widely applied in many real-world applications due to its ability to deal with a number of significant limitations of unimodal biometric systems, including sensitivity to noise, population coverage, intra-class variability, non-universality, and vulnerability to spoofing. This PhD thesis is focused on the combination of both the face and the left and right irises, in a unified hybrid multimodal biometric identification system using different fusion approaches at the score and rank level. Firstly, the facial features are extracted using a novel multimodal

APA, Harvard, Vancouver, ISO, and other styles

46

Pedrosa, Diogo Pinheiro Fernandes. "Mapeamento de ambientes estruturados com extra??o de informa??es geom?tricas atrav?s de dados sensoriais." Universidade Federal do Rio Grande do Norte, 2006. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15114.

Full text

Abstract:

Made available in DSpace on 2014-12-17T14:54:48Z (GMT). No. of bitstreams: 1 DiogoPFP_Tese.pdf: 4402228 bytes, checksum: 17eacb6b5f1731f405518c976d32f701 (MD5) Previous issue date: 2006-05-19<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>The objective of this thesis is proposes a method for a mobile robot to build a hybrid map of an indoor, semi-structured environment. The topological part of this map deals with spatial relationships among rooms and corridors. It is a topology-based map, where the edges of the graph are rooms or corridors, and each link between t

APA, Harvard, Vancouver, ISO, and other styles

47

Kuo, Chin-Kai, and 郭晉凱. "Analysis of Heat Transform Problems of Phase Change by Using Hybrid Laplace Transform Method." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/42628241337278642128.

Full text

Abstract:

碩士<br>國立成功大學<br>工程科學系碩博士班<br>97<br>Phase change or solidification is an important physical phenomenon in the casting process. Generally, finite difference and finite element methods are frequently used to solve the governing equation of phase change problems. The present study employs a method involving the combined use of the hybrid Laplace transform and various ways to deal with the effect of latent heat to investigate nonlinear phase-change problems. In the paper, the theorems of hybrid Laplace transform method are presented. Secant method, effective specific heat method, enthalpy method an

APA, Harvard, Vancouver, ISO, and other styles

48

Yang, Ya-Chu, and 楊雅筑. "Study of R Wave Detection Using Hybrid Wavelet Transform." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/55170944515974821245.

Full text

Abstract:

碩士<br>中華大學<br>資訊工程學系碩士班<br>93<br>Electrocardiogram (ECG) is one of the most used tools for diagnosis of heart-related diseases due to its fast operational and noninvasive features. P wave, QRS complex, and T wave reflect the change of electrophysiological conditions of heart cells at various positions of heart. The clinician can diagnose different heart diseases basing on the characteristic of these wave forms, for example, Long QT syndrome, Acute Myocardial Infarction (AMI), and Atrial Fibrillation (Af), and so on. Generally, the R wave is the most prominent waveform within the ECG signal. Af

APA, Harvard, Vancouver, ISO, and other styles

49

Chen, Yi-Ying, and 陳怡縈. "A Synchrosqueezing Transform-based Hybrid Approach for Voltage Flicker Assessment." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/58pbac.

Full text

Abstract:

博士<br>國立中正大學<br>電機工程研究所<br>105<br>With the widespread existence of nonlinear loads in the power system, the power quality disturbances are increasingly present. Flicker is one of the major power quality event. The impacts of flicker disturbance have been commonly seen in the power distribution networks nowadays. Voltage fluctuations caused by rapid reactive power consumption of loads and photovoltaic or wind generator output variations may produce flickers and cause undesired effects on electric power components and human eyes. IEC 61000-4-15 is the most popular flickermeter standard providing

APA, Harvard, Vancouver, ISO, and other styles

50

Duh, Michael, and 杜俊. "A Hybrid Method for One-Bit Transform Based Motion Estimation." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/40259604752829583360.

Full text

Abstract:

碩士<br>國立高雄應用科技大學<br>電機工程系<br>101<br>This thesis presents a fast and low power consumption motion estimation method that combines with a Kalman filter based adaptive search scheme and movement stabilization algorithm. The main estimation technique we used is block-based motion estimation and an adoption of a one-bit transform (1BT) image pre-processing method. In order to achieve high effective block-matching processing, the image sequences are transformed into one-bit formats, and then we used Kalman filter in the proposed adaptive search strategies. Kalman filter can stabilize a noisy observa

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!