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Relevant bibliographies by topics / Optical imaging / Dissertations / Theses

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Dissertations / Theses on the topic 'Optical imaging'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Vettenburg, Tom. "Optimal design of hybrid optical digital imaging systems." Thesis, Heriot-Watt University, 2010. http://hdl.handle.net/10399/2438.

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Several types of pupil modulation have been reported to decrease the aberration variance of the modulation-transfer-function (MTF) in aberration-tolerant hybrid optical-digital imaging systems. It is common to enforce restorability constraints on the MTF, requiring trade of aberration-tolerance and noise-gain. In this thesis, instead of optimising specific MTF characteristics, the expected imaging-error of the joint design is minimised directly. This method is used to compare commonly used phase-modulation functions. The analysis shows how optimal imaging performance is obtained using moderate

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2

Bronk, Karen Srour. "Imaging based sensor arrays /." Thesis, Connect to Dissertations & Theses @ Tufts University, 1996.

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Thesis (Ph.D.)--Tufts University, 1996.<br>Adviser: David R. Walt. Submitted to the Dept. of Chemistry. Includes bibliographical references. Access restricted to members of the Tufts University community. Also available via the World Wide Web;

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3

Elazhary, Tamer Mohamed Tawfik Ahmed Mohamed. "Generalized Pupil Aberrations Of Optical Imaging Systems." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/347096.

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In this dissertation fully general conditions are presented to correct linear and quadratic field dependent aberrations that do not use any symmetry. They accurately predict the change in imaging aberrations in the presence of lower order field dependent aberrations. The definitions of the image, object, and coordinate system are completely arbitrary. These conditions are derived using a differential operator on the scalar wavefront function. The relationships are verified using ray trace simulations of a number of systems with varying degrees of complexity. The math is shown to be extendable

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4

Wilson, Richard Walter. "Synthesis imaging in optical astronomy." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281906.

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5

Mazurenko, Anton. "Optical imaging of Rydberg atoms." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78519.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 109-111).<br>We present an experiment exploring electromagnetically induced transparency (EIT) in Rydberg atoms in order to observe optical nonlinearities at the single photon level. ⁸⁷Rb atoms are trapped and cooled using a magneto-optical trap (MOT) and a far off resonance dipole trap (FORT). Once the system is prepared, a ladder EIT scheme with Rydberg atoms is used to map the photon field onto the ensemble. The powerful dipole int

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6

Wu, Jigang Yang Changhuei Yang Changhuei. "Coherence domain optical imaging techniques /." Diss., Pasadena, Calif. : Caltech, 2009. http://resolver.caltech.edu/CaltechETD:etd-12112008-102138.

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7

Adie, Steven G. "Enhancement of contrast in optical coherence tomography : new modes, methods and technology." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2007. http://theses.library.uwa.edu.au/adt-WU2007.0127.

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This thesis is concerned with exploiting the native optical coherence tomography (OCT) contrast mechanism in new ways and with a new contrast mechanism, in both cases to enhance the information content of the tomographic image. Through experiments in microsphere solutions, we show that static speckle contains information about local particle density when the effective number of scatterers in the OCT resolution volume is less than about five. This potentially provides contrast enhancement in OCT images based on local scatterer density, and we discuss the experimental conditions suited to utilis

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8

Luo, Yuan. "Novel Biomedical Imaging Systems." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/193907.

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The overall purpose of the dissertation is to design and develop novel optical imaging systems that require minimal or no mechanical scanning to reduce the acquisition time for extracting image data from biological tissue samples. Two imaging modalities have been focused upon: a parallel optical coherence tomography (POCT) system and a volume holographic imaging system (VHIS). Optical coherence tomography (OCT) is a coherent imaging technique, which shows great promise in biomedical applications. A POCT system is a novel technology that replaces mechanically transverse scanning in the lateral

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9

Kosmeier, Sebastian. "Optical eigenmodes for illumination & imaging." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/3369.

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This thesis exploits so called “Optical Eigenmodes” (OEi) in the focal plane of an optical system. The concept of OEi is introduced and the OEi operator approach is outlined, for which quadratic measures of the light field are expressed as real eigenvalues of an Hermitian operator. As an example, the latter is employed to locally minimise the width of a focal spot. The limitations of implementing these spots with state of the art spatial beam shaping technique are explored and a selected spot with a by 40 % decreased core width is used to confocally scan an in focus pair of holes, delivering a

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10

Steinert, Steffen [Verfasser]. "Widefield Magneto-Optical Imaging / Steffen Steinert." München : Verlag Dr. Hut, 2013. http://d-nb.info/1033041556/34.

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11

Hewlett, Simon J. "Imaging strategies in scanning optical microscopy." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302904.

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12

Hanna, Philip M. "Expectation-Maximization Optical Tomosynthetic Volume Imaging." Wright State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=wright1213216116.

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13

Ma, Pei. "OPTICAL IMAGING OF EMBRYONIC CARDIAC CONDUCTION." Case Western Reserve University School of Graduate Studies / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=case1464714110.

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14

Zaidi, Syed Anwar Hyder. "Optical Redox Imaging of Metabolic Activity." Wright State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1484672916027993.

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15

Kerviche, Ronan, and Ronan Kerviche. "Scalable Computational Optical Imaging System Designs." Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/624555.

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Computational imaging and sensing leverages the joint-design of optics, detectors and processing to overcome the performance bottlenecks inherent to the traditional imaging paradigm. This novel imaging and sensing design paradigm essentially allows new trade-offs between the optics, detector and processing components of an imaging system and enables broader operational regimes beyond the reach of conventional imaging architectures, which are constrained by well-known Rayleigh, Strehl and Nyquist rules amongst others. In this dissertation, we focus on scalability aspects of these novel computa

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16

Chaix, Cécile. "AdaptiSPECT: a Preclinical Imaging System." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/594908.

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This dissertation addresses the design, development, calibration and performance evaluation of a pre-clinical imaging system called AdaptiSPECT. Single-Photon Emission Computed Tomography (SPECT) systems are powerful tools for multiple applications in small-animal research, ranging from drug discovery to fundamental biology. Traditionally, pinhole SPECT systems are designed with fixed imaging characteristics in terms of sensitivity, resolution and size of the field of view, that are dictated by the hardware configuration of the system. The SPECT system described in this dissertation can change

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17

Liu, Xiaojing. "Optical Coherence Photoacoustic Microscopy (OC-PAM) for Multimodal Imaging." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/3189.

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Optical coherence tomography (OCT) and Photoacoustic microscopy (PAM) are two noninvasive, high-resolution, three-dimensional, biomedical imaging modalities based on different contrast mechanisms. OCT detects the light backscattered from a biological sample either in the time or spectral domain using an interferometer to form an image. PAM is sensitive to optical absorption by detecting the light-induced acoustic waves to form an image. Due to their complementary contrast mechanisms, OCT and PAM are suitable for being combined to achieve multimodal imaging. In this dissertation, an optical coh

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18

Shibata, Kosuke. "High-sensitivity in situ imaging of atoms in an optical lattice with narrow optical transitions." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/185216.

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19

Luo, Haitao. "Snapshot Imaging Polarimeters Using Spatial Modulation." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/193905.

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The recent demonstration of a novel snapshot imaging polarimeter using the fringe modulation technique shows a promise in building a compact and moving-parts-free device. As just demonstrated in principle, this technique has not been adequately studied. In the effort of advancing this technique, we build a complete theory framework that can address the key issues regarding the polarization aberrations caused by using the functional elements. With this model, we can have the necessary knowledge in designing, analyzing and optimizing the systems. Also, we propose a broader technique that uses ar

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20

Tingstad, James Scott 1962. "Design of an advanced I.R. catadioptric optical system." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276689.

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This thesis explains and develops the design of a compact 3-5μm catadioptric optical imaging system. This system is intended for use with a two-dimensional array detector that replaces the need for the scan mirrors of a traditional FLIR system. This design also illustrates the complete optical design process. From the basic system requirements, to a complete design with consideration to such items as assembly and alignment, cost, and maintaining focus for a change in the environmental temperature.

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21

Clements, Ethan Robert. "CHARACTERIZATION OF OPTICAL LATTICES USING PUMP-PROBESPECTROSCOPY AND FLUORESCENCE IMAGING." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1470323164.

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22

Li, Jia, and 李佳. "Computational imaging technologies for optical lithography extension." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206757.

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With the development and production of integrated circuits at the 22nm node, optical lithography faces increasing challenges to keep up with the specifications on its performance along various metrics, such as pattern fidelity and process window. The past few years saw the emergence of source mask optimization (SMO) as an important technique in computational lithography, which allows lithographers to rise to the challenges by exploiting a larger design space on both mask and illumination configuration, and integrates with methods such as inverse imaging. Yet, many methods that are used to tack

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23

Seeger, Mauritius. "3-D imaging using optical coherence radar." Thesis, University of Kent, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263698.

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24

Hee, Michael Richard. "Biological imaging with low coherence optical interferometry." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/12928.

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25

Brand, Ulrich. "Optical data processing in high-NA imaging." Thesis, King's College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393167.

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26

Běhounek, Tomáš. "Imaging Reflectometry Measuring Thin Films Optical Properties." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-233857.

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V této práci je prezentována inovativní metoda zvaná \textit{Zobrazovací Reflektometrie}, která je založena na principu spektroskopické reflektometrie a je určena pro vyhodnocování optických vlastností tenkých vrstev .\ Spektrum odrazivosti je získáno z map intenzit zaznamenaných CCD kamerou. Každý záznam odpovídá předem nastavené vlnové délce a spektrum odrazivosti může být určeno ve zvoleném bodu nebo ve vybrané oblasti.\ Teoretický model odrazivosti se fituje na naměřená data pomocí Levenberg~-~Marquardtova algoritmu, jehož výsledky jsou optické vlastnosti vrstvy, jejich přesnost, a určení

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27

Nurgiyatna, Nurgiyatna. "Tomography imaging based on plastic optical fibre." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/tomography-imaging-based-on-plastic-optical-fibre(481b898a-b1dc-49ae-aa3f-3555a982bb75).html.

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Plastic optical fibres (POF) can be made sensitive to various parameters. Therefore, a successful implementation of tomographic imaging based on POF sensors will open the way to develop imagers for various parameters utilising this inexpensive sensor material. The work reported in this thesis is aiming to implement real time tomographic imaging based on the POF sensor. As the system uses light (photons) guided along the sensor to capture the information and deliver a signal at the periphery of the sensor, this technique is referred to as Photonic Guided Path Tomography (PGPT). As an initial st

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28

Lee, Seoungjun. "Super-resolution optical imaging using microsphere nanoscopy." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/superresolution-optical-imaging-using-microsphere-nanoscopy(c3b36c86-11b5-4c77-9a69-b966585b0509).html.

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Standard optical microscopes cannot resolve images below 200 nm within the visible wavelengths due to optical diffraction limit. This Thesis reports an investigation into super-resolution imaging beyond the optical diffraction limit by microsphere optical nano-scopy (MONS) and submerged microsphere optical nano-scopy (SMON). The effect of microsphere size, material and the liquid type as well as light illumination conditions and focal plane positions on imaging resolution and magnification have been studied for imaging both biological (viruses and cells) and non-biological (Blu-ray disk patter

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29

Lin, Haibo Yu Ping. "Speckle mechanism in holographic optical coherence imaging." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6184.

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Title from PDF of title page (University of Missouri--Columbia, viewed on Feb 15, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dissertation advisor: Dr. Ping Yu. Vita. Includes bibliographical references.

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30

PIAZZA, SIMONLUCA. "Advanced optical systems for imaging and fabrication." Doctoral thesis, Università degli studi di Genova, 2018. http://hdl.handle.net/11567/932054.

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31

Yang, Zhenyu. "Smartphone-based Optical Sensing." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1461863029.

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32

Behrooz, Ali. "Multiplexed fluorescence diffuse optical tomography." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50401.

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Fluorescence tomography (FT) is an emerging non-invasive in vivo molecular imaging modality that aims at quantification and three-dimensional (3D) localization of fluorescent tagged inclusions, such as cancer lesions and drug molecules, buried deep in human and animal subjects. Depth-resolved 3D reconstruction of fluorescent inclusions distributed over the volume of optically turbid biological tissue using the diffuse fluorescent photons detected on the skin poses a highly ill-conditioned problem, as depth information must be extracted from boundary data. Due to this ill-posed nature of FT rec

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33

LaCasse, Charles. "Modulated Imaging Polarimetry." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/247279.

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In this work, image processing algorithms are presented for an advanced sensor classification known collectively as imaging modulated polarimetry. The image processing algorithms presented are novel in that they use frequency domain based approaches, in comparison to the data domain based approaches that all previous algorithms have employed. Under the conditions on the data and imaging device derived in this work, the frequency domain based demodulation algorithms will optimally reduced reconstruction artifacts in a least squared sense. This work provides a framework for objectively compari

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34

Xu, Weiming. "Offset Optical Coherence Tomography." Miami University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami1626870603439104.

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35

Carlini, A. R. "Imaging modes of confocal scanning microscopy." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233485.

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36

Xu, Wei. "Analog Signal Processing for Optical Coherence Imaging Systems." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/195225.

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Optical coherence tomography (OCT) and optical coherence microscopy (OCM) are non-invasive optical coherence imaging techniques, which enable micron-scale resolution, depth resolved imaging capability. Both OCT and OCM are based on Michelson interferometer theory. They are widely used in ophthalmology, gastroenterology and dermatology, because of their high resolution, safety and low cost. OCT creates cross sectional images whereas OCM obtains en face images. In this dissertation, the design and development of three increasingly complicated analog signal processing (ASP) solutions for optical

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37

Norris, Evan. "Ptychography for Nonlinear Optical Microscopy." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42648.

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In this thesis I will introduce a novel nonlinear optical microscopy method to address some of the shortcomings in the current nonlinear optical microscopy literature and offer a supplement to traditional fluorescent microscopy for label free optical biomedical imaging. In order to demonstrate this method I describe a method for the generation of a numerical sample of collagen fibrils, produce a set of numerical diffraction measurements. I introduce a novel Ptychography model for the simultaneous reconstruction of the components of the nonlinear optical susceptibility tensor and demonstrate th

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38

Schroeter, Matthias. "Enlightening the brain : optical imaging in cognitive neuroscience /." Leipzig ; München : MPI for Human Cognitive and Brain Sciences, 2006. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=014995433&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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39

Schuetz, Christopher Arnim. "Optical techniques for millimeter-wave detection and imaging." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 179 p, 2007. http://proquest.umi.com/pqdweb?did=1397913011&sid=3&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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40

Haniff, Christopher Allim. "High-resolution imaging with ground-based optical telescopes." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238537.

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41

D'Esposito, Angela Maria. "Development of three-dimensional, ex vivo optical imaging." Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/1566767/.

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The ability to analyse tissue in 3-D at the mesoscopic scale (resolution: 2-50 μm) has proven essential in the study of whole specimens and individual organs. Techniques such as ex vivo magnetic resonance imaging (MRI) and X-ray computed tomography (CT) have been successful in a number of applications. Although MRI has been used to image embryo development and gene expression in 3-D, its resolution is not sufficient to discriminate between the small structures in embryos and individual organs. Furthermore, since neither MRI nor X-ray CT are optical imaging techniques, none of them is able to m

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42

Gil, Darío 1975. "Maskless nanolithography and imaging with diffractive optical arrays." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/18066.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.<br>Includes bibliographical references (p. 221-228).<br>Semiconductor lithography is at a crossroads. With mask set costs in excess of one million dollars, long mask turn-around times, and tools that are characterized by their inflexibility and skyrocketing costs, there is a need for a new paradigm in lithography. The work presented in this thesis, Zone-Plate-Array Lithography (ZPAL), bypasses some of the most pressing problems of current lithography equipment by developing a mas

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43

Licitra, Rossella. "Galaxy cluster detection with optical and infrared imaging." Paris 7, 2014. http://www.theses.fr/2014PA077149.

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En tant que structures gravitationnellement liées les plus massives, les amas de galaxies permettent de poser des contraintes fortes sur les structures à grande échelle prédites par le modèle cosmologique standard. Ils permettent aussi de comprendre l'influence de l'environnement sur l'évolution des galaxies. Pour mener ce type d'étude et obtenir des résultats robustes, il est impératif de construire des catalogues d'amas complets et purs. Dans le présent manuscrit, je décris l'algorithme de détection d'amas que j'ai développé lors de ma thèse de doctorat -Red GOLD ainsi que les résultats que

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Jenkins, Michael W. "Imaging the Embryonic Heart with Optical Coherence Tomography." Case Western Reserve University School of Graduate Studies / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=case1207340565.

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Liu, Yehe. "System and Process Optimization for Biomedical Optical Imaging." Case Western Reserve University School of Graduate Studies / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case162556700760192.

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46

Foreman, Matthew Roy. "Informational limits in optical polarimetry and vectorial imaging." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/5748.

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Light has provided the means to learn and gather information about the physical world throughout history. In a world where science moves to smaller scales and more specialised problems however, the boundaries of current technology are continually challenged, motivating the search for more sophisticated systems providing greater information content, sensitivity and increased dimensionality. Utilising the vectorial nature of light presents a promising avenue by which to meet these growing requirements. Polarisation can, for example, be used to transmit information, or alternatively, changes in p

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Koh, Kevin Rongsheng. "Multimodal multispectral optical endoscopic imaging for biomedical applications." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/6330.

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Optical imaging is an emerging field of clinical diagnostics that can address the growing medical need for early cancer detection and diagnosis. Various human cancers are amenable to better prognosis and patient survival if found and treated during early disease onset. Besides providing wide-field, macroscopic diagnostic information similar to existing clinical imaging techniques, optical imaging modalities have the added advantage of microscopic, high resolution cellular-level imaging from in vivo tissues in real time. This comprehensive imaging approach to cancer detection and the possibilit

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48

Lessard, Guillaume Quake Stephen R. "Apertureless near-field optical microscopy for fluorescence imaging /." Diss., Pasadena, Calif. : California Institute of Technology, 2003. http://resolver.caltech.edu/CaltechETD:etd-05302003-145931.

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Lin, Yuxiang. "DEVELOPMENT AND ANALYSIS OF OPTICAL PH IMAGING TECHNIQUES." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/193846.

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The pH of tumors and surrounding tissues is a key biophysical property of the tumor microenvironment that affects how a tumor survives and how it invades the surrounding space of normal tissue. Research into tumorigenesis and tumor treatment is greatly dependent on accurate, precise, and reproducible measurements. Optical imaging is generally regarded as the best choice for non-invasive and high spatial resolution measurements. Ratiometric fluorescence imaging and fluorescence lifetime imaging microscopy (FLIM) are two primary ways for measuring tumor pH.pH measurements in a window chamber

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Hummert, Stephanie Maria. "Magneto-Optical Imaging of Superconducting MgB2 Thin Films." W&M ScholarWorks, 2007. https://scholarworks.wm.edu/etd/1539626854.

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