Log in

Relevant bibliographies by topics / Digital signal and image processing / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Digital signal and image processing.

Dissertations / Theses on the topic 'Digital signal and image processing'

Author: Grafiati

Published: 30 May 2022

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 'Digital signal and image processing.'

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

Ahtaiba, Ahmed Mohamed A. "Restoration of AFM images using digital signal and image processing." Thesis, Liverpool John Moores University, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604322.

Full text

Abstract:

All atomic force microscope (AFM) images suffer from distortions, which are principally produced by the interaction between the measured sample and the AFM tip. If the three-dimensional shape of the tip is known, the distorted image can be processed and the original surface form ' restored' typically by deconvolution approaches. This restored image gives a better representation of the real 3D surface or the measured sample than the original distorted image. In this thesis, a quantitative investigation of using morphological deconvolution has been used to restore AFM images via computer simulat

APA, Harvard, Vancouver, ISO, and other styles

2

Musoke, David. "Digital image processing with the Motorola 56001 digital signal processor." Scholarly Commons, 1992. https://scholarlycommons.pacific.edu/uop_etds/2236.

Full text

Abstract:

This report describes the design and testing of the Image56 system, an IBM-AT based system which consists of an analog video board and a digital board. The former contains all analog and video support circuitry to perform real-time image processing functions. The latter is responsible for performing non real-time, complex image processing tasks using a Motorola DSP56001 digital signal processor. It is supported by eight image data buffers and 512K words of DSP memory (see Appendix A for schematic diagram).

APA, Harvard, Vancouver, ISO, and other styles

3

Hartley, David Andrew. "Image correlation using digital signal processors." Thesis, Liverpool John Moores University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304465.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Zhu, Yong. "Digital signal and image processing techniques for ultrasonic nondestructive evaluation." Thesis, City University London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336431.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

May, Heather. "Wavelet-based Image Processing." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1448037498.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Ansourian, Megeurditch N. "Digital signal processing for the analysis of fetal breathing movements." Thesis, University of Edinburgh, 1989. http://hdl.handle.net/1842/13595.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Silva, Eduardo Antonio Barros da. "Wavelet transforms for image coding." Thesis, University of Essex, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282495.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Lu, Nan. "Development of new digital signal processing procedures and applications to speech, electromyography and image processing." Thesis, University of Liverpool, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.445962.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Lie, Chin Cheong Patrick. "Iterative algorithms for fast, signal-to-noise ratio insensitive image restoration." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63767.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Shakaff, A. Y. Md. "Practical implementation of the Fermat Number Transform with applications to filtering and image processing." Thesis, University of Newcastle Upon Tyne, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379766.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Arrowood, Joseph Louis Jr. "Theory and application of adaptive filter banks." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/15369.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Hereford, James McCracken. "Optical implementation of morphological transformations." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/14891.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Jarpa, Pedro F. "Quantifying the differences in low probability of intercept radar waveforms using quadrature mirror filtering." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02sep%5FJarpa.pdf.

Full text

Abstract:

Thesis (M.S.: Electrical Engineer)--Naval Postgraduate School, September 2002.<br>Thesis advisor(s): Phillip E. Pace, Herschel H. Loomis, Jr. Includes bibliographical references (p. 151-152). Also available online.

APA, Harvard, Vancouver, ISO, and other styles

14

Lambert, T. "Digital Enhancement Techniques for Underwater Video Image Sequences." Thesis, Honours thesis, University of Tasmania, 2005. https://eprints.utas.edu.au/253/1/tristanlthesis.pdf.

Full text

Abstract:

Due to concern about the current state of the world's oceans, several large scale scientific projects have begun to investigate the condition of our oceans. These projects are making use of underwater video sequences to monitor marine species. The move to using underwater video monitoring introduces labour intensive manual processing techniques. This leads to the need for an automated system capable of processing the data at a much greater speed. This project investigated whether the development of suitable image processing techniques could be used for pre-processing underwater images from a f

APA, Harvard, Vancouver, ISO, and other styles

15

Adler, Desmond Christopher 1978. "Digital signal processing techniques for optical coherence tomography : OCT and OCT image enhancement." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28486.

Full text

Abstract:

Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.<br>Includes bibliographical references (p. 132-135).<br>Digital signal processing (DSP) techniques were developed to improve the flexibility, functionality, and image quality of ultrahigh resolution optical coherence tomography (OCT) systems. To reduce the dependence of OCT research systems on fixed analog electronics and to improve overall system flexibility, a digital demodulation scheme implemented entirely in software was developed. This improvement allowed rapid reconfiguratio

APA, Harvard, Vancouver, ISO, and other styles

16

Liu, Sam J. "Low bit-rate image and video compression using adaptive segmentation and quantization." Diss., Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/14850.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Rosenthal, Jordan. "Filters and filterbanks for hexagonally sampled signals." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/13347.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Katsaggelos, Aggelos Konstantinos. "Constrained iterative image restoration algorithms." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/15830.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Hollis, Timothy M. "Circuit and modeling solutions for high-speed chip-to-chip communication /." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1721.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Kim, Se Hun. "Accuracy-energy tradeoffs in digital image processing using embedded computing platforms." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42881.

Full text

Abstract:

As more and more multimedia applications are integrated in mobile devices, a significant amount of energy is devoted to digital signal processing (DSP). Thus, reducing energy consumption for DSP systems has become an important design goal for battery operated mobile devices. Since supply voltage scaling is one of the most effective methods to reduce power/energy consumption, this study examines aggressive voltage scaling to achieve significant energy savings by allowing some output quality degradation for error tolerant image processing system. The objective of proposed research is to explore

APA, Harvard, Vancouver, ISO, and other styles

21

Pessoa, Lucio Flavio Cavalcanti. "Nonlinear systems and neural networks with hybrid morphological/rank/linear nodes : optimal design and applications to image processing and pattern recognition." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/13519.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Srinivasan, Sabeshan. "Object Tracking in Distributed Video Networks Using Multi-Dimentional Signatures." Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/SrinivasanSX2006.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Yin, Li. "Adaptive Background Modeling with Temporal Feature Update for Dynamic Foreground Object Removal." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/5040.

Full text

Abstract:

In the study of computer vision, background modeling is a fundamental and critical task in many conventional applications. This thesis presents an introduction to background modeling and various computer vision techniques for estimating the background model to achieve the goal of removing dynamic objects in a video sequence. The process of estimating the background model with temporal changes in the absence of foreground moving objects is called adaptive background modeling. In this thesis, three adaptive background modeling approaches were presented for the purpose of developing \teacher remo

APA, Harvard, Vancouver, ISO, and other styles

24

Lynch, Michael Richard. "Adaptive techniques in signal processing and connectionist models." Thesis, University of Cambridge, 1990. https://www.repository.cam.ac.uk/handle/1810/244884.

Full text

Abstract:

This thesis covers the development of a series of new methods and the application of adaptive filter theory which are combined to produce a generalised adaptive filter system which may be used to perform such tasks as pattern recognition. Firstly, the relevant background adaptive filter theory is discussed in Chapter 1 and methods and results which are important to the rest of the thesis are derived or referenced. Chapter 2 of this thesis covers the development of a new adaptive algorithm which is designed to give faster convergence than the LMS algorithm but unlike the Recursive Least Squares

APA, Harvard, Vancouver, ISO, and other styles

25

Vladimir, Ostojić. "Integrisana multiveličinska obrada radiografskih snimaka." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107425&source=NDLTD&language=en.

Full text

Abstract:

Predložena je multiveličinska obrada kojom je moguće objediniti pojačanjevidljivosti detalja kao i poboljšanje kontrasta radiografskih snimaka, kojimse uspostavlja ravnoteža između kontrasta slabo i jasno vidljivih struktura.Pored toga, obradom je obuhvaćeno i smanjenje globalnog kontrasta, čime jemoguće dodatno naglasiti lokalne strukture. Drugim rečima, predložena jemultiveličinska obrada koja integriše sve korake poboljšanja vidljivostianatomskih struktura. Predložena obrada razmotrena je u okviru razvijenogalgoritamskog okvira koji sadrži korake obrade radiografskih snimaka koji supotrebni

APA, Harvard, Vancouver, ISO, and other styles

26

Rivet, Julie. "Non-iterative methods for image improvement in digital holography of the retina." Electronic Thesis or Diss., Sorbonne université, 2020. http://www.theses.fr/2020SORUS246.

Full text

Abstract:

Avec l’augmentation du nombre de personnes souffrant de déficience visuelle modérée à sévère, la surveillance et le traitement des troubles de la vision sont devenus des enjeux majeurs de la médecine actuelle. Au centre hospitalier national d’ophtalmologie des Quinze-Vingts à Paris, deux bancs optiques ont été installés ces dernières années pour développer deux techniques d'holographie numérique en temps-réel pour l’imagerie de la rétine : la tomographie holographique par cohérence optique (OCT holographique) plein champ et l'holographie laser Doppler. La première reconstitue des images en tro

APA, Harvard, Vancouver, ISO, and other styles

27

Tsang, Kwok-hon, and 曾國瀚. "Design of an aperture-domain imaging method and signal acquisition hardware for ultrasound-based vector flow estimation." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B43572315.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Glotzbach, John William. "A Color Filter Array Interpolation Method Based on Sampling Theory." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4785.

Full text

Abstract:

Digital cameras use a single image sensor array with a color filter array (CFA) to measure a color image. Instead of measuring a red, green, and blue value at every pixel, these cameras have a filter built onto each pixel so that only one portion of the visible spectrum is measured. To generate a full-color image, the camera must estimate the missing two values at every pixel. This process is known as color filter array interpolation. The Bayer CFA pattern samples the green image on half of the pixels of the imaging sensor on a quincunx grid. The other half of the pixels measure the red an

APA, Harvard, Vancouver, ISO, and other styles

29

Wahl, Joel. "Image inpainting using sparse reconstruction methods with applications to the processing of dislocations in digital holography." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-63984.

Full text

Abstract:

This report is a master thesis, written by an engineering physics and electrical engineering student at Luleå University of Technology.The desires of this project was to remove dislocations from wrapped phase maps using sparse reconstructive methods. Dislocations is an error that can appear in phase maps due to improper filtering or inadequate sampling. Dislocations makes it impossible to correctly unwrap the phasemap.The report contains a mathematical description of a sparse reconstructive method. The sparse reconstructive method is based on KSVDbox which was created by R. Rubinstein and is f

APA, Harvard, Vancouver, ISO, and other styles

30

Vemulapalli, Smita. "Audio-video based handwritten mathematical content recognition." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45958.

Full text

Abstract:

Recognizing handwritten mathematical content is a challenging problem, and more so when such content appears in classroom videos. However, given the fact that in such videos the handwritten text and the accompanying audio refer to the same content, a combination of video and audio based recognizer has the potential to significantly improve the content recognition accuracy. This dissertation, using a combination of video and audio based recognizers, focuses on improving the recognition accuracy associated with handwritten mathematical content in such videos. Our approach makes use of a video

APA, Harvard, Vancouver, ISO, and other styles

31

Boynton, Ansel John. "EARLY WILDFIRE DETECTION USING TEMPORAL FILTERING AND MULTI-BAND INFRARED ANALYSIS." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/1048.

Full text

Abstract:

Every year wildfires threaten or destroy ecological habitats, man-made infrastructure and people’s lives. Additionally millions of dollars are spent each year trying to prevent and control these fires. Ideally if a wildfire can be detected before it rages out of control it can be extinguished and avoid large scale devastation. Traditional manned fire lookout towers are neither cost effective nor particularly efficient at detecting wildfire. It is proposed that temporal filtering can be used to isolate the signals created at the beginnings of potential wildfires. Temporal filtering can remove a

APA, Harvard, Vancouver, ISO, and other styles

32

Alfonso, Ovidio. "Digital signal processing implementation for near real-time wavelet transformation system for binary images." FIU Digital Commons, 2000. http://digitalcommons.fiu.edu/etd/1065.

Full text

Abstract:

Communication has become an essential function in our civilization. With the increasing demand for communication channels, it is now necessary to find ways to optimize the use of their bandwidth. One way to achieve this is by transforming the information before it is transmitted. This transformation can be performed by several techniques. One of the newest of these techniques is the use of wavelets. Wavelet transformation refers to the act of breaking down a signal into components called details and trends by using small waveforms that have a zero average in the time domain. After this transfo

APA, Harvard, Vancouver, ISO, and other styles

33

Indra, Isara. "Very low bit rate video coding using adaptive nonuniform sampling and matching pursuit." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/15779.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Monnom, Olivier. "Méthodes algorithmiques de traitement d'images en holographie digitale." Doctoral thesis, Universite Libre de Bruxelles, 2006. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210840.

Full text

Abstract:

Le présent travail traite de problèmes particuliers en traitement de signal soulevés par l'holographie digitale. Le premier chapitre présente l'holographie et l'holographie digitale. Le deuxième chapitre aborde le problème des artéfacts apparaissant sur le bord des hologrammes lorsque ceux-ci sont propagés numériquement. Le troisième chapitre propose une méthode automatique pour éliminer la phase de fond d'un hologramme. Le quatrième chapitre montre comment améliorer la visibilité des hologrammes en supprimant les objets diffractants. Le cinquième chapitre expose un logiciel d'aide à l'analyse

APA, Harvard, Vancouver, ISO, and other styles

35

Darrington, John Mark. "Real time extraction of ECG fiducial points using shape based detection." University of Western Australia. School of Computer Science and Software Engineering, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0152.

Full text

Abstract:

The electrocardiograph (ECG) is a common clinical and biomedical research tool used for both diagnostic and prognostic purposes. In recent years computer aided analysis of the ECG has enabled cardiographic patterns to be found which were hitherto not apparent. Many of these analyses rely upon the segmentation of the ECG into separate time delimited waveforms. The instants delimiting these segments are called the

APA, Harvard, Vancouver, ISO, and other styles

36

Kassen, Daniel S. "Synthetic Aperture Radar: Rapid Detection of Target Motion in Matlab." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1398.

Full text

Abstract:

Synthetic Aperture Radar (SAR) has come into widespread use in several civilian and military applications. The focus of this paper is the military application of imaging point targets captured by an airborne SAR platform. Using the traditional SAR method of determining target motion by analyzing the difference between subsequent images takes a relatively large amount of processing resources. Using methods in this thesis, target motion can be estimated before even a single image is obtained, reducing the amount of time and power used by a significantly large amount. This thesis builds on work d

APA, Harvard, Vancouver, ISO, and other styles

37

Wood, Christiaan. "An investigation into multi-spectral tracking." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/1319.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Eckstein, Adric. "Development of Robust Correlation Algorithms for Image Velocimetry using Advanced Filtering." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/36338.

Full text

Abstract:

Digital Particle Image Velocimetry (DPIV) is a planar measurement technique to measure the velocity within a fluid by correlating the motion of flow tracers over a sequence of images recorded with a camera-laser system. Sophisticated digital processing algorithms are required to provide a high enough accuracy for quantitative DPIV results. This study explores the potential of a variety of cross-correlation filters to improve the accuracy and robustness of the DPIV estimation. These techniques incorporate the use of the Phase Transform (PHAT) Generalized Cross Correlation (GCC) filter applied t

APA, Harvard, Vancouver, ISO, and other styles

39

Fonseca, Roberto Nery da. "Algoritmos para avaliação da qualidade de vídeo em sistemas de televisão digital." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-28042009-170527/.

Full text

Abstract:

Nesta dissertação é abordado o tema da avaliação de qualidade em sinais de vídeo, especificamente da avaliação objetiva completamente referenciada de sinais de vídeo em definição padrão. A forma mais confiável de se medir a diferença de qualidade entre duas cenas de vídeo é utilizando um painel formado por telespectadores, resultando em uma medida subjetiva da diferença de qualidade. Esta metodologia demanda um longo período de tempo e um elevado custo operacional, o que a torna pouco prática para utilização. Neste trabalho são apresentados os aspectos relevantes do sistema visual humano, das

APA, Harvard, Vancouver, ISO, and other styles

40

Brogueira, Gaspar Manuel Rocha. "Processamento de imagem digital para o controlo de qualidade do queijo regional de Évora." Master's thesis, Universidade de Évora, 2010. http://hdl.handle.net/10174/19399.

Full text

Abstract:

A utilização generalizada do computador para a automatização das mais diversas tarefas, tem conduzido ao desenvolvimento de aplicações que possibilitam a realização de actividades que até então poderiam não só ser demoradas, como estar sujeitas a erros inerentes à actividade humana. A investigação desenvolvida no âmbito desta tese, tem como objectivo o desenvolvimento de um software e algoritmos que permitam a avaliação e classificação de queijos produzidos na região de Évora, através do processamento de imagens digitais. No decurso desta investigação, foram desenvolvidos algoritmos e metodolo

APA, Harvard, Vancouver, ISO, and other styles

41

Koenigkan, Luciano Vieira. "Método de análise do contorno de aglomerados de gotas de chuva artificial em imagem digital." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-21032006-181214/.

Full text

Abstract:

Este trabalho apresenta um método para análise do contorno de gotas de chuva artificial em imagem digital, o qual se caracteriza como uma ferramenta para melhor compreensão dos processos agrícolas que envolvem o uso de chuvas artificiais, como a irrigação e a aplicação de defensivos, sendo desenvolvido com o uso de técnicas para análise de formas bidimensionais e processamento de sinais, como representação de formas por contornos paramétricos, análise de Fourier e filtragem gaussiana. Os resultados obtidos demonstram precisão na análise de imagens de aglomerados de gotas, acrescentando as cara

APA, Harvard, Vancouver, ISO, and other styles

42

Petrásek, Daniel. "Zpracování termálních obrazů technikou superresolution." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220622.

Full text

Abstract:

Thesis deals with problematic of raising digital image spacial resolution, mainly thermal image. There are mentioned methods of interpolation, panorama and super-resolution. Main topic of this thesis is super-resolution which is detailly described during the thesis. Finally there is a description of algorithm implementation and problems that may occur during the implemetation.

APA, Harvard, Vancouver, ISO, and other styles

43

Pous, Nicolas. "Analyse de signaux analogiques/radiofréquences à l'aide de ressources digitales en vue du test." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2011. http://tel.archives-ouvertes.fr/tel-00667202.

Full text

Abstract:

Les travaux présentés dans ce mémoire entrent dans le cadre de la réduction des coûts de production des circuits RF. En effet, la démocratisation de ces appareils pousse les industriels à chercher de nouvelles solutions afin de produire, à bas prix, ces circuits RF. Le test représentant une large partie du coût de ces produits, l'objectif de cette thèse a donc été de proposer une stratégie originale permettant d'effectuer l'analyse de signaux modulés à l'aide d'un équipement de test numérique faible coût. Tout d'abord, le manuscrit dresse un tableau général du test industriel et présente un év

APA, Harvard, Vancouver, ISO, and other styles

44

Nordick, Brent C. "Dynamic Element Matching Techniques For Delta-Sigma ADCs With Large Internal Quantizers." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd466.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Majd, Farjam. "Two new parallel processors for real time classification of 3-D moving objects and quad tree generation." PDXScholar, 1985. https://pdxscholar.library.pdx.edu/open_access_etds/3421.

Full text

Abstract:

Two related image processing problems are addressed in this thesis. First, the problem of identification of 3-D objects in real time is explored. An algorithm to solve this problem and a hardware system for parallel implementation of this algorithm are proposed. The classification scheme is based on the "Invariant Numerical Shape Modeling" (INSM) algorithm originally developed for 2-D pattern recognition such as alphanumeric characters. This algorithm is then extended to 3-D and is used for general 3-D object identification. The hardware system is an SIMD parallel processor, designed in bit sl

APA, Harvard, Vancouver, ISO, and other styles

46

Irie, Kenji. "Noise-limited scene-change detection in images." Diss., Lincoln University, 2009. http://hdl.handle.net/10182/1351.

Full text

Abstract:

This thesis describes the theoretical, experimental, and practical aspects of a noise-limited method for scene-change detection in images. The research is divided into three sections: noise analysis and modelling, dual illumination scene-change modelling, and integration of noise into the scene-change model. The sources of noise within commercially available digital cameras are described, with a new model for image noise derived for charge-coupled device (CCD) cameras. The model is validated experimentally through the development of techniques that allow the individual noise components to be

APA, Harvard, Vancouver, ISO, and other styles

47

Saraiva, Aratã Andrade. "Detecção do complexo QRS através de morfologia matemática multiescalar." Universidade Tecnológica Federal do Paraná, 2012. http://repositorio.utfpr.edu.br/jspui/handle/1/437.

Full text

Abstract:

Este trabalho apresenta a morfologia matemática multiescalar com quatro escalas aplicada no sinal de eletrocardiografia para a detecção do complexo QRS. Para o desenvolvimento deste trabalho pluridisciplinar de Engenharia Biomédica foram utilizados conhecimentos de Cardiologia, Eletrocardiografia, Bioestatística, Processamento Digital de Sinais Biomédicos, Teoria de Detecção de Sinais, Análise ROC e Índices de Desempenho de Classificadores, interagindo com áreas da edicina, da Estatística, da Matemática, da Engenharia da Computação e da Engenharia Elétrica. Testes foram realizados com o banco

APA, Harvard, Vancouver, ISO, and other styles

48

Modahl, Ylva, and Caroline Skoglund. "Lokalisering av brunnar i ELISpot." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254257.

Full text

Abstract:

Health is a fundamental human right. To increase global health, research in the medical sector is of great importance. Decreasing time consumption of biomedical testing could accelerate the research and development of new drugs and vaccines. This could be achieved by automation of biomedical analysis, using computerized methods. In order to perform analysis on pictures of biomedical tests, it is important to identify the area of interest (AOI) of the test. For example, cells and bacteria are commonly grown in petri dishes, in this case the AOI is the bottom area of the dish, since this is wher

APA, Harvard, Vancouver, ISO, and other styles

49

Bechar, Hassane. "Comparaison d'images : Application à la surveillance et au suivi de trajectoire." Nancy 1, 1987. http://www.theses.fr/1987NAN10062.

Full text

Abstract:

L'étude se base sur la comparaison d'une image stockée en mémoire avec celle provenant de la caméra. L'étude s'est effectuée à l'aide d'un dispositif cablé qui donne un résultat visuel et un résultat numérique en temps réel. Un logiciel permet d'obtenir les mêmes résultats mais en temps différé

APA, Harvard, Vancouver, ISO, and other styles

50

Филатова, Анна Евгеньевна. "Метод структурной идентификации биомедицинских изображений с локально сосредоточенными признаками". Thesis, Политехпериодика, 2014. http://repository.kpi.kharkov.ua/handle/KhPI-Press/46308.

Full text

Abstract:

Рассматривается научно-техническая проблема синтеза интеллектуальных систем поддержки принятия решений при обработке биомедицинских сигналов и изображений. В работе используются методы цифровой обработки сигналов и изображений, многокритериальные оценки, методы выделения новых знаний с целью повышения качества принятия решений в условиях априорной неопределенности.<br>Scientific and technical problem of synthesis of intelligent decision support systems in biomedical signals and images processing is considered. Methods of digital signal and image processing, multi-criteria estimation, methods f

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!