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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Fringe analysis"”.
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An investigation of various computational techniques in optical fringe analysis.
Fringe projection is an optical technique for three dimensional non-contact measurement of height distributions. A fringe pattern is projected onto an object's surface and, when viewed off-axis, it deforms to follow the shape of the object. The deformed fringe pattern is analysed to obtain its …
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A real-time multi-sensor 3D surface shape measurement system using fringe analysis
… shape measurement system that is based upon fringe projection/analysis and which operates at speeds approaching real-time. The research programme was carried out as part of MEGURATH (www.megurath.org), a collaborative research project with the aim of improving the treatment of cancer by …
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Spatial Fringe Analysis Methods and their Application to Holographic Interferometry and Fringe Projection Techniques
To date, no fringe analysis technique has the capability to provide simultaneous and direct estimation of the continuous distributions corresponding to the interference phase and its first and second-order derivatives within the framework of a single interferometric configuration. Achieving this …
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DEVELOPMENT OF PHASE RETRIEVAL TECHNIQUES IN DISPLACEMENT AND DISPLACEMENT DERIVATIVES MEASUREMENT
… based algorithm called DHODA and a novel fringe orientation and density map based fringe analysis technique are proposed for phase derivatives determination. A derivative based simplified phase tracker model is proposed for phase demodulation from a single fringe pattern. In time-average …
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Digital Holographic Micro-Interferometery for the Measurement of the Refractive Index of Biological Cells
… holograms, a program that applies Fourier fringe analysis to extract wrapped phase image and quality-guided phase unwrapping program were implemented in LabVIEW®. From the three different interference phase distributions of these holograms and the refractive index and its variation of the …
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Towards real-time monitoring of bacterial cultures without the need for physical sampling: elastic scattering, fluorescence and Raman spectroscopy of Escherichia coli cultures.
… first part of this dissertation pertains to the fringe analysis of a hydration layer that forms spontaneously when biofilms dry. This layer at optical thickness ˂ 20 µm is approximately 1-2 orders of magnitude thinner than the biofilm thickness as measured by confocal Raman microscopy and …