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Showing 1 to 6 of 6 for “"Gabor transform"”.
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Feature extraction in image processing and deep learning
… on deriving proper representations of data using Gabor transform in this thesis. A novel neural network with proven approximation properties dependent on its size is developed using Gabor system. In quantum energy regression, invariant representation of chemical molecules using electron densities …
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The manipulation of RF-DNA fingerprints through the use of a phase-modulated clock in IEEE802.11a Wi-Fi signals
… are extracted. Analysis is conducted using the Gabor Transform. The results show the structure of the preamble remains intact when the clock signal is phase-modulated using sine waves oscillating frequencies up to 10 kHz with deviation of 1.5 degrees, or 2.5 kHz with deviation of 90 degrees.
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Time-resolved linear and non-linear rheology of thixotropic and aging complex fluids: Application to particulate and biopolymeric physical gels
… However, the conventional application of Fourier transforms for analyzing oscillatory data assume the signals are time- translation invariant, which constrains the rate of mutation of the material to be extremely small. This constraint makes it difficult to accurately study shear-induced …
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Filter-bank transforms with exact inverses
Uniformly sampled filter-bank transforms and their inverses are introduced and the conditions to obtain perfect reconstruction upon inversion are explored. It is shown that perfect reconstruction requires both filter addition and multiplication and the necessary and sufficient conditions for these …
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Development of optomechanofluidic resonators
… optical fibres that employs a novel real-time Gabor transform monitoring method is developed. Third, the two components are integrated into an experimental apparatus for the observation of high-Q factor optical and mechanical modes in OMFR shells. Finally, an analysis towards developing a …
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Novel Rheometric Techniques and Constitutive Models for Linear and Nonlinear Rheology: Applications to Polymeric Solutions and Colloidal Gels
… in the presence of physical aging based on the transformation to a ‘material time’ domain. In this transformed reference domain, we can again quantitatively describe the constitutive relationship between stress and strain-rate measured in these time-dependent clay dispersions using fractional …