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Dissertations / Theses on the topic 'Fringe Pattern'

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Published: 7 June 2025

Last updated: 2 August 2025

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1

Gdeisat, Munther Ahmad. "Fringe pattern demodulation using digital phase locked loops." Thesis, Liverpool John Moores University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.521754.

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2

Davila, Alvarez Abundio. "Transient displacement analysis using double-pulsed ESPI and fringe processing methods." Thesis, Loughborough University, 1996. https://dspace.lboro.ac.uk/2134/32809.

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This thesis deals with techniques for the displacement measurement of fast transient phenomena using ESPI. Four main contributions are presented. First, a computer model for speckle noise and ESPI fringe generation is proposed. An assessment methodology for speckle noise reduction algorithms is then derived using the computer model. Then the noise in the ESPI fringe patterns is analysed using computer generated speckle and several solutions for its reduction are proposed and assessed. Finally, a fast electro-optical system is presented as a solution to the unambiguous phase extraction problem

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3

Green, Roger James. "The use of Fourier transform methods in automatic fringe pattern analysis." Thesis, King's College London (University of London), 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307203.

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4

Kerr, David. "Extraction of displacement data from Electronic Speckle Pattern Interferometric fringe patterns using digital image processing techniques." Thesis, Loughborough University, 1992. https://dspace.lboro.ac.uk/2134/28205.

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The commercial exploitation of Electronic Speckle Pattern Interferometry (ESPI) is now gathering pace with manufacturers marketing products in Europe and the USA. The power of the technique both in a research and an industrial inspection role has brought pressure from the engineering community for an automated fringe analysis system.

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5

Albrecht, Daniel J. F. "Electronic Speckle Pattern Interferometry : instruments development, optimisation and applications." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/32474.

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Optical interferometric techniques are being increasingly used in industry. These non contact techniques, using laser methods based on speckle interferometry, assure a greater accuracy in measuring displacements caused by deformations. One such technique, Electronic Speckle Pattern Interferometry (ESPI), has been used successfully, by analysis of the reaction of mechanical components to induced mechanical or thermal stress, for the measurements of in-situ, real time, full-field, in-plane and out-of-plane displacements and the detection of detachments, micro-cracks occurring as internal and ext

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6

Judge, Thomas Richard. "Quantitative digital image processing in fringe analysis and particle image velocimetry (PIV)." Thesis, University of Warwick, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357844.

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7

Bzdigian, Quintana Maral. "Beyond the fringe: a hidden pattern in Mrs. Dalloway's : moments of being." Tesis, Universidad de Chile, 2013. http://www.repositorio.uchile.cl/handle/2250/115355.

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Informe de Seminario para optar al grado de Licenciada en Lengua y Literatura Inglesa<br>As human beings, we are in constant awareness of our past and memories. We tend to attach significance to life events, places and people that make up our lives. Remembering a memory allows us to relieve that moment once again, nevertheless it never evokes the same feelings that the original did. Moreover we are not able to remember everything, but unconsciously, we retain specific moments in our mind. Aware of all of this, Virginia Woolf wrote “A sketch of the past” published in “Moments of being”, A Colle

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8

Hamzah, Saharudin. "A wavelet based approach to phase recovery for 3-D surface and shape measurement using phase modulated fringe patterns." Thesis, Liverpool John Moores University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263950.

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9

Grynberg, Roman. "Pattern bargaining and fringe benefits : an institutionalist approach to the North American automobile industry, 1949-1958." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74024.

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10

Zhang, Zhong Yi. "Visualisation and quantification of the defects in glass-fibre reinforced polymer composite materials using electronic speckle pattern interferometry." Thesis, Loughborough University, 1999. https://dspace.lboro.ac.uk/2134/22078.

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Non-destructive testing (NDT) of glass-fibre reinforced polyester (GRP) composite materials has been becoming increasingly important due to their wide applications in engineering components and structures. Electronic Speckle Pattern Interferometry (ESPI) has promising potential in this context because it is a non-contact, whole-field and real-time measurement system. This potential has never been fully exploited and there is only limited knowledge and understanding available in this area. This reality constrains the wide popularity and acceptance of ESPI as a novel NDT technique. Therefore it

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11

Bulur, Hatice Gonca. "Determination Of Buried Circular Cylinder With Ground Penetrating Radar Using An Optical Fiber Sensor." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613702/index.pdf.

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The terms &lsquo<br>ground-probing radar&rsquo<br>, &lsquo<br>ground penetrating radar (GPR)&rsquo<br>, &lsquo<br>sub-surface radar&rsquo<br>or &lsquo<br>surface-penetrating radar (SPR)&rsquo<br>refer to various techniques for detecting and imaging of subsurface objects. Among those terms GPR is preferred and used more often. In this thesis, the depth and the position of the buried circular cylinder are determined by a GPR system which comprises of an optical fiber sensor (OFS). The system is a combination of OFS, GPR and optical communication link. In order to determine the depth and the pos

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12

Malcolm, Andrew Alexander. "Fourier analysis of projected fringe patterns for precision measurement." Thesis, Liverpool John Moores University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262105.

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13

Frings, René [Verfasser]. "Interlacing Patterns in Exclusion Processes and Random Matrices / René Frings." Bonn : Universitäts- und Landesbibliothek Bonn, 2014. http://d-nb.info/1047622793/34.

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14

MEJIA, MORALES JULIAN. "Acoustofluidic interferometric device for optomechanical cytometry." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1051810.

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In the past years, growing demand for label-free cell analysis has emerged. This demand answers the need for cell analysis in its developing stages and, perhaps more importantly, to study physiological cell states in a simpler way than using fluorescence-based analyses. Mechanical and optical properties of cells are emerging as powerful biomarkers to discriminate cells. The cell deformation induced by acoustic pressure is measured with the Acoustofluidic Interferometric Device, developed in this thesis. It allows for studying the deformability of the cell in a way similar to what is done

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15

Yow, Kam Chaun. "Signal bandwidth analysis and phase demodulation of fringe patterns using digital filters in 3-D shape measurement." Thesis, Liverpool John Moores University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.247418.

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16

O'Donovan, Paul Christopher. "An investigation of a Fourier based phase retrieval technique used in the analysis of surface fringe patterns." Thesis, Liverpool John Moores University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262107.

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17

Opitz, Daniel. "Simulation der Interferenzstreifenmuster von Tankflammen organischer Flüssigkeiten - Simulation of the interference fringe patterns of pool-fires of organic fuels." Gerhard-Mercator-Universitaet Duisburg, 2001. http://www.ub.uni-duisburg.de/ETD-db/theses/available/duett-10292001-110437/.

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In the context of this work, a computer program is developed for the simulation of the interference fringe patterns of laboratory-scale pool-fires of organic fuels. With the help of this simulation tool, the formation as well as the dynamics of typical structural components in the interference fringe patterns in the flame neck and the flame plume are modelled. A model conception for the formation of the interference fringe patterns in the flame plume is developed. The temperature field is modelled as a relatively cold convection column, into which a large amount of statistically distributed ho

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18

Shin, Sung-Chul. "The visualization of distortion using interference fringe patterns and the correction of chromatic aberration using a Fresnel zone plate." Thesis, University of Warwick, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399452.

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19

Francis, Lauren Maree. "The relationship between assigned age group and child care teachers' staffing patterns, educational level, wages and benefits an exploratory analysis /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 116 p, 2007. http://proquest.umi.com/pqdweb?did=1342740551&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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20

Cameron, Nairne. "A comparative study of individual travel patterns of urban fringe dwellers in Ottawa, Canada; Kuala Lumpur, Malaysia; and Yogyakarta, Indonesia." Thesis, University of Ottawa (Canada), 2003. http://hdl.handle.net/10393/28977.

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A technique for gathering, analyzing and grouping individual travel pattern data is developed and tested in an international case study to compare the travel behaviours of urban fringe dwellers in three cities. The cities are Ottawa, Canada; Kuala Lumpur, Malaysia; and Yogyakarta, Indonesia. The technique makes a contribution to research methodology through implementation of the following elements in combination: (1) an urban fringe, spatial, residential sampling procedure; (2) a household survey that gathers detailed data on respondents and their travel patterns for three days over the period

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21

Rawson, William Black. "Searching for pattern : an enquiry into the work of Key Stage 1 children with the seven frieze groups." Thesis, University of Exeter, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244979.

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22

Yang, Perry 1968. "Ecological interactions of natural processes and new urban form : a landscape ecological analysis fo the change of urban and natural patterns in eastern-Taipei metropolitan fringes." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/70735.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 2001.<br>Includes bibliographical references (leaves 81-85).<br>The ecological effect of urban form has been an important issue in 20" century planning history. The inadequate relationships between development patterns of modern cities and their natural surroundings had been discussed in Geddes's Cities in Evolution, McHarg's Design with Nature, Lynch's Good City Form, Forman's "ecologically optimum spatial form" in Land Mosaics, and Mitchell's "fine-grain urban pattern" in City of Bits and Etopia (Gedde

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23

Mejía, Morales Julián. "Dispositif interférométrique pour la cytométrie : optomécanique en acousto-fluidique." Thesis, Université Côte d'Azur, 2021. http://www.theses.fr/2021COAZ4000.

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Au cours des dernières années, une demande croissante d’analyse cellulaire sans étiquette est apparue. Cette demande répond au besoin d’analyse cellulaire dans ses étapes de développement et, peut-être plus important encore, d’étudier l’état physiologique des cellules d’une manière plus simple que d’utiliser des analyses basées sur la fluorescence. Les propriétés mécaniques et optiques des cellules deviennent de puissants biomarqueurs pour discriminer les cellules. La déformation cellulaire induite par la pressionacoustique est mesurée avec le Dispositif Interférométrique Acoustofluidique, dév

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24

Costa, David Antonio da. "O estudo dos frisos no ambiente informatizado Cabri-Géomètre." Pontifícia Universidade Católica de São Paulo, 2005. https://tede2.pucsp.br/handle/handle/10889.

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Made available in DSpace on 2016-04-27T16:57:10Z (GMT). No. of bitstreams: 1 Trabalho final completo David Antonio da Costa.pdf: 6141489 bytes, checksum: d050aa9fbc35fd6a8b9aeafd2ff79131 (MD5) Previous issue date: 2005-11-17<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>This research intends to develop an approaching about some geometrical transformations in the Euclidean plane beginning with the frieze patterns in an artistic dimension. The goal was to verify in which measure the use of Dynamic Geometry Software Cabri Géomètre II contributed to articulate and give me

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25

Chen, Hong-Ming, and 陳宏名. "Application of two frequency fringe pattern for phase-shifting projected fringe profilometry." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/85545266341890301010.

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碩士<br>國立中山大學<br>材料科學研究所<br>93<br>A novel accurate calibration-based phase-shifting projected fringe profilometry (Calibration-based PSPFP) for finding the absolute shape of objects is proposed. In addition to a tremendous savings in time, the benefits of using Calibration-based PSPFP also include greatly reduced environmental vulnerability. Since Calibration-based PSPFP employs a sinusoidal fringe pattern to perform the phase-shifting algorithm, the quality and accuracy of the sinusoidal fringe pattern becomes critical. To evaluate the performance of this measurement scheme and reduce the pha

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26

Chen, Chin-Tung, and 陳清同. "Three Dimensional Surface Measurement By Fringe Pattern." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/4jqzu6.

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碩士<br>國立屏東科技大學<br>生物機電工程系所<br>105<br>In the research, the objective is to build an automatic system to measure the three dimensional shape of the inspected objects based on using fringe pattern projections. There are two types of fringe patterns are employed in the study; one is single strip fringe pattern and another one is multiple strip fringe pattern. For single strip fringe pattern, the inspected target is located on a moving platform and moves along one direction which is perpendicular to the strip line. The inspected target is scanned by single strip fringe pattern, and the 3D shape is

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27

Chen, Chung-kuei, and 陳忠貴. "Simulate Photoelastic Fringe Pattern by Using Finite Element Method." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/76111637750897033962.

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碩士<br>國立成功大學<br>機械工程學系碩博士班<br>95<br>The photoelasticity stress analysis is a technology with many researches focus on it. We can acquire the locutions of points with the same principle stress direction and the principle stress difference through the photoelasticity experiments These data are the important parameters in photoelasticity stress analysis. The main purpose of this article is using Finite Element Method to simulate the distributions of stress when model subject loadings and boundary conditions, then turn these into the intensities of lights to simulate the fringe patterns of transm

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28

Yang, Shih-Wei, and 楊士緯. "Surface Profilometry and Metrology Based on a Single Fringe Pattern." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/88534552685301232478.

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博士<br>國立交通大學<br>電控工程研究所<br>104<br>A total solution of micron and submicron level surface metrology and surface profilometry is proposed in this dissertation, which has the following contributions: (1) two automatic fringe centroid positioning techniques based on the concept of clustering and line scanning, respectively, are proposed for processing different types of fringe patterns. (2) An extremum extraction algorithm for a single fringe pattern is presented, and this algorithm can be applied to analyze asymmetric fringe patterns with varying density. (3) An improved directional phase retriev

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29

Waddington, Christopher. "Adaptive Fringe Pattern Projection Techniques for Imgae Saturation Avoidance in 3D Surface Measurement." Thesis, 2010. http://hdl.handle.net/10012/5616.

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Fringe-pattern projection (FPP) techniques are commonly used for surface-shape measurement in a wide range of applications including object and scene modeling, part inspection, and reverse engineering. Periodic intensity fringe patterns with a specific amplitude are projected by the projector onto an object and a camera captures images of the fringe patterns, which appear distorted by the object surface from the perspective of the camera. The images are then used to compute the height or depth of the object at each pixel. One of the problems with FPP is that camera sensor saturation may oc

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30

Rai, Mani Ratnam. "Fringe Projection Technique for Deformation Measurements under Impact Loading." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/3789.

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High-resolution three-dimensional (3D) shape reconstruction of objects has huge potential for applications in the field of design, security, entertainment, biomedicine, industrial quality control etc. Of the available techniques, optical methods have the distinctive advantage of facilitating non-contact and non-intrusive measurements. Of late, integration of optical measurement system with the computer based data processing has improved the quality of the results. Of the available techniques, structured-light illumination (Fringe Projection) is the most effective, owing its simplistic experime

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31

Rai, Mani Ratnam. "Fringe Projection Technique for Deformation Measurements under Impact Loading." Thesis, 2017. http://etd.iisc.ernet.in/2005/3789.

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High-resolution three-dimensional (3D) shape reconstruction of objects has huge potential for applications in the field of design, security, entertainment, biomedicine, industrial quality control etc. Of the available techniques, optical methods have the distinctive advantage of facilitating non-contact and non-intrusive measurements. Of late, integration of optical measurement system with the computer based data processing has improved the quality of the results. Of the available techniques, structured-light illumination (Fringe Projection) is the most effective, owing its simplistic experime

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32

Das, Arun S. "Process and pattern of urbanisation and counter urbanisation: a case study of Mysore rural-urban fringe." Thesis, 1997. http://hdl.handle.net/2009/5907.

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33

Sakla, Wesam Adel. "Novel Pattern Recognition Techniques for Improved Target Detection in Hyperspectral Imagery." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-12-7526.

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A fundamental challenge in target detection in hyperspectral imagery is spectral variability. In target detection applications, we are provided with a pure target signature; we do not have a collection of samples that characterize the spectral variability of the target. Another problem is that the performance of stochastic detection algorithms such as the spectral matched filter can be detrimentally affected by the assumptions of multivariate normality of the data, which are often violated in practical situations. We address the challenge of lack of training samples by creating two models to c

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34

Suguna, Sree N. "Small Angle Sensing/Measurement Using 'Pattern Imaging' Method - Few Investigations." Thesis, 2008. https://etd.iisc.ac.in/handle/2005/753.

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The present thesis concerns with a few investigations on sensing/measurement of small angle rotation/tilt using Pattern Imaging Method. The methodology involves looking at the tailored-objects located adjacent to the observer (CCD camera) through a mirror and extracts the angular position of the mirror from their images by processing the latter through object specific algorithm. Its principal advantage stems from the fact that small-angle measurement can be done using ambient light which is neither collimated nor filtered for single wavelength. This makes the associated optical configuration n

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35

Suguna, Sree N. "Small Angle Sensing/Measurement Using 'Pattern Imaging' Method - Few Investigations." Thesis, 2008. http://hdl.handle.net/2005/753.

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The present thesis concerns with a few investigations on sensing/measurement of small angle rotation/tilt using Pattern Imaging Method. The methodology involves looking at the tailored-objects located adjacent to the observer (CCD camera) through a mirror and extracts the angular position of the mirror from their images by processing the latter through object specific algorithm. Its principal advantage stems from the fact that small-angle measurement can be done using ambient light which is neither collimated nor filtered for single wavelength. This makes the associated optical configuration n

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36

Lin, Chien-Hung, and 林建宏. "Automated Analysis of Photoelastic Fringe Patterns." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/02503800895331644081.

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碩士<br>國立成功大學<br>機械工程研究所<br>83<br>Photoelastic stress analysis is a well known and documented technique. It is usually done by using information from isoclinic and isochromatic patterns. The isoclinic gives the information of their principal stress directions and the isochromatic the infomation of differences of the principle stresses. Photoelastic stress analysis can be a long and tedious process. With the arrival of powerful personal computers and the digital image process, automated photo

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37

陳冠穎. "Software Development for Analyzing Interferometric Fringe Patterns." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/v8u2m9.

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38

Shih, Yi-Chen, and 施宜成. "Reconstruction of object profiles from projected fringe patterns." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/17523806026828698689.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>92<br>This thesis develops a non-contact optical measurement system for measuring 3D object profiles from images of projected sinusoidal grating patterns. First, the fringe pattern with sinusoidal intensity is generated by a computer program and projected onto the object surface by a LCD projector. Four images of the projected fringe patterns with phase shift at 90-degree interval for a cycle are taken from the CCD camera. Phase-shifting technique is used to find the phase distribution of the distorted fringe pattern, and the branch cut algorithm is applied to compu

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39

LIN, TZU-YAO, and 林子堯. "Apply Fractional Fourier to Separate Two-dimensional Mixed-fringe Patterns." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/u59qyy.

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碩士<br>國立雲林科技大學<br>電機工程系<br>105<br>In this thesis, the method for mixed signal separation based on the fractional Fourier transform (FrFT) analysis is proposed. Consider the two-dimensional (2-D) Gaussian mixed-fringe patterns. We propose that method that can analyze the parameters of each separated signals by using the fractional Fourier transform due to the observed higher sparsity in the frequency domain. First, we review the properties of the 2-D fringe patterns and the theory of FrFT. By searching the spectral intensities of all the possible fractional orders in the FrFT of the mixed signa

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40

Chang, Yann-Bin, and 張燕賓. "Plot of 3-D Scatted Light Photoelastic Fringe Patterns by Using Finite Element Method and the Two-Load Method for Fringe Analysis." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/91204117106808611821.

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碩士<br>國立成功大學<br>機械工程學系專班<br>96<br>The photoelastic stress analysis is a technology with many researches focus on it. We can acquire the locutions of points with the same principle stress direction and the principle stress difference through the photoelastic experiments These data are the important parameters in photoelastic stress analysis. The main purpose of this article is using Finite Element Method to simulate the distributions of stress when model Bear loadings and boundary conditions, then turn these into the intensities of lights to simulate the fringe patterns of scattered-light phot

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41

Jian-SiangChen and 陳建祥. "Application of Image Processing Technique for Error Detection of Phase-Shifting Fringe Patterns and Capture of Thermal Images." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/12807380662054125807.

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碩士<br>國立成功大學<br>機械工程學系碩博士班<br>99<br>Grinding wheel surface contains artificial diamonds. And printed circuit board contains many cavities on the surface. These diamonds and cavities lead to wrong gray level on phase-shifting patterns, and results the error when calculating 3D surface profile. Because the light of the heating tube will influence the gray level of phase-shifting patterns, it needs to shut down the heating tube first and then capture the images. Setting the conditions of when to begin to capture the images will affect the time we wait and the temperature we capture. In this artic

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42

Gamble, Paul Andrew Warren. "Hospital wage and administration patterns a Metropolitan Toronto case study." 2000. http://books.google.com/books?id=cy5YAAAAMAAJ.

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43

Fricke, Anna [Verfasser]. "Succession patterns of turf algal communities in a fringing coral reef / Anna Fricke." 2011. http://d-nb.info/1011415437/34.

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