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Dissertations / Theses on the topic 'Holographic image'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Kim, Taegeun. "Optical Three-Dimensional Image Matching Using Holographic Information." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/28362.

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We present a three-dimensional (3-D) optical image matching technique and location extraction techniques of matched 3-D objects for optical pattern recognition. We first describe the 3-D matching technique based on two-pupil optical heterodyne scanning. A hologram of the 3-D reference object is first created and then represented as one pupil function with the other pupil function being a delta function. The superposition of each beam modulated by the two pupils generates a scanning beam pattern. This beam pattern scans the 3-D target object to be recognized. The output of the scanning system g

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2

Yang, Hui. "Data extraction in holographic particle image velocimetry." Thesis, Loughborough University, 2004. https://dspace.lboro.ac.uk/2134/35012.

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Holographic Particle Image Velocimetry (HPIV) is potentially the best technique to obtain instantaneous, three-dimensional, flow field information. Several researchers have presented their experimental results to demonstrate the power of HPIV technique. However, the challenge to find an economical and automatic means to extract and process the immense amount of data from the holograms still remains. This thesis reports on the development of complex amplitude correlation as a means of data extraction. At the same time, three-dimensional quantitative measurements for a micro scale flow is of inc

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3

Plaisted, Parker Bennett. "An investigation of point image analysis for evaluating holographic image quality /." Online version of thesis, 1993. http://hdl.handle.net/1850/11878.

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4

Earls, Craig P. "Holographic particle image velocimetry : computational simulation and reconstruction." Thesis, Springfield, Va. : Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA372219.

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Thesis (Degree of Naval Engineer and M.S. in Aerospace Engineering) Massachusetts Institute of Technology, June 1999.<br>"June 1999". Includes bibliographical references (leaves 77-79). Also available online.

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5

Holzbach, Mark. "Three-dimensional image processing for synthetic holographic stereograms." Thesis, Massachusetts Institute of Technology, 1986. http://hdl.handle.net/1721.1/14767.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1987.<br>Bibliography: leaves 54-55.<br>A digital image processing technique is presented that allows conventionally produced images to be prepared for undistorted printing in one-step holographic stereograms. This technique effectively predistorts the source 2D image set for a holographic stereogram to compensate for the distorting effects of its display geometry. The resulting stereograms can have undistort ed images that occupy space in front, back, and through the hologram surface. This technique is much more conv

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6

Earls, Craig P. (Craig Paul) 1967. "Holographic particle image velocimetry : computational simulation and reconstruction." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80189.

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Thesis (Nav.E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1999.<br>Includes bibliographical references (leaves 78-80).<br>by Craig P. Earls.<br>S.M.<br>Nav.E.

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7

Miller, Bo E., and Yuzuru Takashima. "Cavity enhanced image recording for holographic data storage." SPIE-INT SOC OPTICAL ENGINEERING, 2016. http://hdl.handle.net/10150/622715.

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Previously, we proposed and experimentally demonstrated that optical cavities can be employed in recording and readout of plane wave holograms to improve data rates in Holographic Data Storage Systems (HDSS). However, there were some concerns about whether these techniques would be applicable to page based HDSS where signal beams are image bearing and have multiple wave vectors. We have consequently demonstrated cavity enhanced writing of image bearing holograms in Fe: LiNbO3 with a 532 nm wavelength, CW, single mode, DPSS, Nd: YAG, laser with a cavity on the reference arm. The diffraction eff

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8

McKeague, Thomas Anderson. "Holographic particle image velocimetry of ink jet streams." Thesis, Durham University, 2015. http://etheses.dur.ac.uk/10997/.

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Ink jet technology is a rapidly growing and diverse field of research. Ink jets are used to deliver very precise and small (picolitre) volumes of fluid to a surface. Recent advances in ink jet technology demand a better understanding of the dynamics of the fluid during jetting. The aim of this project was to design a method capable of measuring the flow velocities inside ink jet streams. This objective has been achieved by the use of digital holographic particle image velocimetry. The difficulty with measuring flows inside tightly curved samples is that the refractive index change over the bou

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9

Degirmenci, Yilmaz. "Reasoning by analogy using holographic conceptual projection." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02sep%5FDegirmenci.pdf.

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10

Wormald, S. Andrew. "Numerical techniques in digital microscopic holographic particle image velocimetry." Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/7140.

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Digital microscopic holographic particle image velocimetry (DµHPIV) is a technique which records scattered coherent light and uses it to measure displacement of particles in a fluid flow. The work in this thesis begins with the construction of a digital holographic microscope and explores the different possible methods of recording and holographic reconstruction, finding an off-axis forward-scatter geometry to be most suitable for the task. A comparison follows of methods to measure displacement in a sparsely seeded environment by performing a simple experiment. It finds that complex amplitude

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11

Bishop, Alexis Ivan. "Spectrally selective holographic interferometry techniques for flow diagnostics /." [St. Lucia, Qld.], 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16305.pdf.

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12

Nelson, Kathryn M. (Kathryn Marie). "Real time holographic image rendering : improvements in lighting and realism." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/33812.

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13

Chen, Jhen-Si. "Holographic 3D image display : layer-based method and coarse integrated holograms." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708806.

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14

Feng, Z. "A signal processing method for the acoustic image reconstruction of planar objects." Thesis, University of Portsmouth, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234728.

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15

Dawson, Paula Heatley Art College of Fine Arts UNSW. "The Concrete Holographic Image: an Examination of Spatial and Temporal Properties and their Application in a Religious Art Work." Awarded by:University of New South Wales. School of Art, 2000. http://handle.unsw.edu.au/1959.4/18201.

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The premise of this thesis is that the ???concrete holographic image???, a laser transmission hologram which has an object or a hologram of an object as its subject, has unique spatial and temporal properties which can suggest a plurality of tenses to a viewer. There is a lack of comprehensive analysis of the holographic representational system within art related theoretical and critical writing and a tendency to analyse individual works only in terms of generalities which apply to the concepts surrounding the holographic medium. While these form an important background for art image productio

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16

Ross, Gary A. "A study of the quality of holographic real images with the introduction of image point aberrations." Thesis, University of Aberdeen, 1994. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU058718.

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The aim of this work is to investigate the effects of deviations from the ideal reconstruction on the quality of the holographic real image. The deviations include varying the angle of incidence of the reconstruction beam, varying the distance of the source of that beam, altering its wavelength from that of the recording, and changing the medium in which the hologram is replayed with respect to that in which it was recorded. From the results, the tolerance of several common recording geometries to these changes were evaluated and recommendations made as to which of the geometries are most suit

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17

Clapham, Sarah Louise. "Real-time holographic display devices for image projection and spatial light modulation." Thesis, University of Southampton, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293148.

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18

Naidoo, Thegaran. "Digital holographic microscopy with automated detection of red blood cells." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/61032.

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The digital in-line holographic configuration is motivated by the goal of developing a portable, cost effective sensor system for pre-screening patient blood samples. The theory of holography is explained from the foundational concepts in scalar diffraction theory all the way through to the implementation of reconstruction algorithms. Methods for the enhancement of holographic reconstructions are described. The algorithms that perform an automated count of the reconstructed objects are described and demonstrated. Simulated and experimental results are provided. Together, the lens-free holograp

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19

Kocher, C. J. "A study of the effects of processing chemistry on the holographic image space." Thesis, University of Brighton, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383653.

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20

Sorensen, Thomas J. "Inverse Scattering Image Quality with Noisy Forward Data." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2541.pdf.

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21

Eichmann, Troy N. "An experimental investigation of shock shapes and shock stand-offs in a super-orbital facility /." [St. Lucia, Qld.], 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18122.pdf.

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22

Kvasnica, Lukáš. "Řízení optického stolku interferenčního mikroskopu na základě obrazové fáze." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228199.

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Digital holographic microscopy is an interferometric imaging technique, the principle of which is the off-axis image plane holography. The principle of this technique enables to reconstruct both the image intensity and the image phase from the output interferencesignal. The reconstruction can be carried out on the basis of a single image plane hologram. This leads to the possibility of a realtime image reconstruction. The speed of the reconstruction depends on the detection and the computing process. The aim of this diploma thesis is to develop user software for the control of the detection ca

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23

Boussemaere, Luc. "Investigating off-axis digital holographic microscopy with a source of partial spatial coherence as a real-time sensor for cell cultures." Doctoral thesis, Universite Libre de Bruxelles, 2015. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209086.

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Bio-pharmaceutical industry is a vast growing market and recent recommendations of the Food and Drug Administration have put a large emphasis on the characterization of biological processes and models. As a consequence, there is a high incentive on developing modern sensors in order to more accurately monitor and control processes. In that way, Digital Holographic Microscopy (DHM) presents unique features thanks to the refocusing and quantitative phase contrast imaging capabilities. In this thesis we investigate the usage of DHM to monitor yeast cultures that are often used in both the bio-pha

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24

Vašíček, David. "Fluorescenční zobrazovací techniky v multimodálním holografickém mikroskopu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231466.

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The diploma thesis deals with the registration of images taken with the multimodal holographic microscope (MHM). The summary covers the fluorescent and holographic microscopy, and the multimodal holographic microscope combining both these microscopy types. Every pair of the images needs to be aligned in order to gain new information by combining both image types. The thesis contains an algorithm that registers images by phase correlation as well as a process created in MATLAB in accordance with the algorithm. The most important procedure parameters’ influence on the registration success is des

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25

Connors, Betsy. "Holographic moving images." Thesis, Massachusetts Institute of Technology, 1986. http://hdl.handle.net/1721.1/65217.

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26

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.

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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

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27

Rew, Gayle Astrid Adele. "Studies in zone plate encoded holography with high energy gamma rays." Thesis, University of Birmingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366166.

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28

Štrbková, Lenka. "Biofyzikální interpretace kvantitativního fázového zobrazení." Doctoral thesis, Vysoké učení technické v Brně. CEITEC VUT, 2018. http://www.nusl.cz/ntk/nusl-369740.

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Práce se zabývá interpretací kvantitativního fázového zobrazení pomocí techniky koherencí řízené holografické mikroskopie. Vzhledem k tomu, že tato technika generuje velké množství kvantitativních fázových obrazů o nezanedbatelné velikosti, manuální analýza by byla časově náročná a neefektivní Za účelem urychlení analýzy obrazů získaných pomocí koherencí řízené holografické mikroskopie je v této práci navržena metodika automatizované interpretace kvantitativních fázových obrazů pomocí strojového učení s učitelem. Kvantitativní fázové obrazy umožňují extrakci parametrů charakterizujících distri

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29

Kuhlmann, Abrantes Juliana. "Vélocimétrie par Image de Particules Holographique pour les Mesures de Turbulence de Paroi." Phd thesis, Ecole Centrale de Lille, 2012. http://tel.archives-ouvertes.fr/tel-00862796.

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La compréhension de la dynamique de la turbulence de paroi a déjà fait l'objet de nombreuses études expérimentales et numériques depuis des décennies. Le principal intérêt pratique de ces études tient au fait que la contrainte de cisaillement pariétale (et donc le frottement) est étroitement liée à la dynamique des structures à la proximité de la paroi. Les techniques expérimentales en mécanique des fluides ont également fait de grands progrès ces dernières années. Ce travail présente le développement d'une méthode expérimentale visant à fournir des mesures 3D-3C de l'écoulement dans la région

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30

Lebon, Benoît. "Etude 3D d’un tourbillon dans un champ de houle par holographie numérique." Thesis, Normandie, 2017. http://www.theses.fr/2017NORMLH22/document.

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Cette thèse traite de l'application de l'holographie numérique dans l'axe à l'étude d'une dynamique tourbillonnaire dans un champ de houle. Lors du passage de la houle au dessus d'une structure immergée, des tourbillons se forment à ses extrémités. Ces tourbillons ont un impact fort sur la dynamique proche des structures et peuvent engendrer des problèmes d'affouillement ou de vieillissement prématuré. On s'intéresse donc à la dynamique tridimensionnelle de ces tourbillons qui sont rapidement l'objet de déformations menant à leur éclatement. Pour étudier ce mécanisme, le problème est modélisé

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Magalhães, Daniel Souza Ferreira. "Construção de telas holográficas e aplicações." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/278163.

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Orientador: Jose Joaquín Lunazzi<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Fisica Gleb Wataghin<br>Made available in DSpace on 2018-08-14T06:28:04Z (GMT). No. of bitstreams: 1 Magalhaes_DanielSouzaFerreira_D.pdf: 18841445 bytes, checksum: 83953f45dd82288807d2ece70a0d3c17 (MD5) Previous issue date: 2009<br>Resumo: A Tela holográfica é um elemento óptico difrativo gerado pela interferência de dois feixes de maneira a redistribuir convenientemente para um observador a luz que recebe com o objetivo de visualização de imagens sem óculos e com paralaxe. Neste traba

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32

Ziegler, Remo. "Holography and wave-based image generation /." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17823.

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33

Zhang, Xin, and 张鑫. "Sectional image reconstruction in optical scanning holography." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B4476487X.

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34

Doh, Kyu-Bong. "Twin-image problems in optical scanning holography." Diss., Virginia Tech, 1996. http://hdl.handle.net/10919/39169.

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35

Tziraki, Maria. "The development of photorefractive holography through turbid media for application to biomedical imaging." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341934.

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36

Hawryszkiw, Jean. "Traitement d'images hybride pour l'analyse qualitique et metrologique de structures." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR13320.

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Methodologie d'exploitation de l'information fournie par les techniques photoniques globales telles que l'interferometrie holographique, le moire ou la thermographie ir. Cette methodologie a ete validee par l'etude et la mise au point d'un systeme hybride photonique-informatique d'interpretation d'interferogrammes holographiques

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37

Harris, Michael C. "Development of an Energy-Based Nearfield Acoustic Holography System." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd835.pdf.

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38

Gardner, Michael D. "Scan-Based Near-Field Acoustical Holography on Partially Correlated Sources." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd3167.pdf.

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39

Shepherd, Micah Raymond. "The Effect of Nonlinear Propagation on Near-field Acoustical Holography." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2072.pdf.

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40

Binfield, Peter. "The effects of silver halide processing schemes on image fidelity in hologrammetry." Thesis, University of Aberdeen, 1994. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU541140.

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An investigation is conducted into the suitability of thirteen different silver halide hologram development schemes with a view towards their use in underwater hologrammetry. To this end the image fidelity indicators of resolution, reconstructed irradiance, noise, signal-to-noise ratio and contrast are extracted from a representative, diffusely reflecting object. Both amplitude and phase holograms are recorded, utilising a range of post-development treatments, on Agfa-Gevaert 8E56 emulsion. In addition, silver halide sensitised gelatin holograms are examined and evaluated. The major conclusion

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Raouf, Abdul. "Three dimensional image structure in in-line Fraunhofer holography." Thesis, Brunel University, 1991. http://bura.brunel.ac.uk/handle/2438/7278.

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In this thesis a new theoretical model for the three dimensional images from a finite aperture in-line Fraunhofer hologram is presented. Existing work only deals with the case of single object, in this thesis this work has been extended to the case of two identical coplanar discs. The resulting image equation is solved numerically for several different limiting apertures and their results are compared with the image intensity data from the holograms recorded on Agfa BE 75HD film. Excellent quantitative agreement is found, verifying the theoretical predictions. Three different criteria for dete

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42

BENKHEROUROU, SAHNOUNE SOURAYA. "Contribution a l'uniformisation du faisceau laser gaussien collimate par holographie numerique." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13084.

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Presentation de deux techniques pour uniformiser le faisceau. La premiere est fondee sur le filtrage lineaire dans le domaine des frequences ou le faisceau est considere comme etant l'objet pouvant etre modifie par un filtre (hologramme) pour produire l'image filtree (faisceau uniforme). La seconde est constituee par deux filtres de phase. Le premier filtre sert a devier les rayons lumineux de facon a obtenir une repartition uniforme. Le second permet de collimater le faisceau deja uniformise par le premier

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Fonquernie, Marc. "Stabilite des ecoulements de convection naturelle en espace confine a fort nombre de rayleigh : une etude experimentale." Toulouse 3, 1987. http://www.theses.fr/1987TOU30185.

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Evaluaiton des champs thermiques de convection et des regimes d'ecoulement (pour un nombre de rayleigh superieur a 10**(10)) dans une piece d'habitation caracterisee par des conditions de temperatures de surface : un mur vertical chaud, le mur oppose froid et les quatre autres faces a la meme temperature

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Dahhan, A. K. "Real-time microwave holography using glow discharge detectors." Thesis, Cardiff University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356739.

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Welsh, Thomas V. "Quantitative Analysis of 3D Images Formed Using Range Compressed Holography." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1512317926568769.

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Woolston, Scott R. "Development of methods to propagate energy density and predict farfield directivity using nearfield acoustic holography /." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd3016.pdf.

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Ubaldi, Filippo <1977&gt. "Simulations and interpretation of holographic TEM images of biased and unbiased electronic devices." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/2195/.

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Laforest, Timothé. "Nouveaux dispositifs intégrés pour l'analyse et le contrôle de lumière cohérente : conception conjointe de circuits opto-électroniques et systèmes optiques." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT113/document.

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Parmi les techniques d'imagerie optiques utilisées en milieu clinique, la principale limitation est la faible résolution lorsque la profondeur d'examen dépasse quelques mm. Cette limite de résolution ne permet pas à l'heure actuelle de concurrencer les techniques d'imagerie médicales permettant de réaliser un examen du corps dans son intégralité (Rayons X, IRM, Scanner). Dans ce cadre, l'imagerie acousto-optique présente plusieurs avantages: elle permet de mesurer des propriétés optiques utiles pour la détection de tumeur, à la résolution spatiale des ultrasons. Cependant, les dispositifs de d

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Flasseur, Olivier. "Object detection and characterization from faint signals in images : applications in astronomy and microscopy." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSES042.

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La détection et la caractérisation d’objets dans des images à faible rapport signal sur bruit est un problème courant dans de nombreux domaines tels que l’astronomie ou la microscopie. En astronomie, la détection des exoplanètes et leur caractérisation par imagerie directe depuis la Terre sont des sujets de recherche très actifs. Une étoile cible et son environnement proche (abritant potentiellement des exoplanètes) sont observés sur de courtes poses. En microscopie, l’holographie en ligne est une méthode de choix pour caractériser à faibles coûts les objets microscopiques. Basée sur l’enregis

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Rivoire, Audrey. "Contributions au guillochage et à l'authentification de photographies." Phd thesis, Université Jean Monnet - Saint-Etienne, 2012. http://tel.archives-ouvertes.fr/tel-00976616.

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L'objectif est de développer un guillochage de photographie inspiré de l'holographie numérique en ligne, capable d'encoder la signature issue d'un hachage robuste de l'image (méthode de Mihçak et Venkatesan). Une telle combinaison peut permettre l'authentification de l'image guillochée dans le domaine numérique, le cas échéant après impression. Cette approche contraint le hachage à être robuste au guillochage. La signature est codée en un nuage de formes que l'on fait virtuellement diffracter pour former la marque à insérer (guilloches dites de Fresnel) dans l'image originale. Image dense, cet

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