Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"Intensity statistics"”.
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Development of Quantitative Optical Coherence Tomography Methods for Cell Death Detection
… were developed to measure changes in the speckle intensity statistics, spectral characteristics and the temporal intensity fluctuations of the OCT signal. In a series of in vitro experiments it was demonstrated that the quantitative OCT parameters are sensitive to morphological changes related to …
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Characterization of tropospheric scintillations on Earth-space paths in the Ku and Ka frequency bands using the results from the Virginia Tech OLYMPUS experiment
… spectral characteristics, frequency scaling and statistics of the scintillation intensity, statistics of scintillation fading, diurnal and meteorological trends as well as a comparison with the current CCIR predictive model. Sma11 scale spatial diversity is a potential means to counteract …
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Midlevel ventilation's constraint on tropical cyclone intensity
… vertical wind shear can constrain a TC's intensity. An idealized framework is developed to assess how ventilation affects TC intensity via two pathways: downdrafts outside the eyewall and eddy fluxes directly into the eyewall. Three key aspects are found: ventilation has a detrimental …
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Blood Vessel Segmentation and shape analysis for quantification of Coronary Artery Stenosis in CT Angiography
… of active contours. Both global and local intensity statistics are utilised in the energy functional calculation, which allows for dealing with non-uniform brightness conditions, while evolving the contour towards to the desired boundaries without being trapped in local minima. To suppress …
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Improving ultrasound display by retrieving high-frequency sonographic information
… this dissertation research was to use ultrasound intensity (B-mode squared) statistics to demonstrate the transfer of spatial frequency components of the object in the traditional ultrasound display and use the resulting insight to improve display processing that results in improved visibility of …