Publicaties
Gekozen filters:
Gekozen filters:
Locally adaptive passive error concealment for wavelet coded video Universiteit Gent
A filter design technique for improving the directional selectivity of the first scale of the dual-tree complex wavelet transform Universiteit Gent
Two-phase flow regime assignment based on wavelet features of a capacitance signal Universiteit Gent
Generalized Hermitean Clifford-Hermite polynomials and the associated wavelet transform Universiteit Gent
Simulation of a non‐linear, time‐variant circuit using the Haar wavelet transform Universiteit Gent
Wavelet theory has disentangled numerous complexities, including those pertinent to transient and steady-state responses of systems, when Laplace and Fourier transforms face insoluble obstacles. Reactive linear components (e.g. inductors and capacitors) are typically handled in the frequency plane. Non-linear (e.g. diodes) or time-variant components (e.g. switches) are conventionally simulated in the time plane (e.g. a diode via its I-V ...
Blood pressure waveform analysis by means of wavelet transform Universiteit Gent
The assessment of cardiovascular function by means of arterial pulse wave analysis (PWA) is well established in clinical practice. PWA is applied to study risk stratification in hypertension, with emphasis on the measurement of the augmentation index as a measure of aortic pressure wave reflections. Despite the fact that the prognostic power of PWA, in its current form, still remains to be demonstrated in the general population, there is general ...
Image segmentation using wavelet coefficients and geodesic distance between elliptical distributions for applications in street view Universiteit Gent
The geodesic distance on the manifold of multivariate zero-mean Generalized Gaussian Distributions (GGD) has been shown a strong similarity measure for texture classification. Recent works demonstrates that the GGD can be employed for texture identification in the wavelet domain with more accuracy than other measures, like the Kullback Leibler Divergence. The wavelet coefficients of an image can be grouped considering color and spatial ...
Lack-of-fit tests in linear mixed models with application to wavelet tests KU Leuven
We obtain the asymptotic distribution of score and restricted likelihood ratio statistics for testing whether variance components are equal to zero in linear mixed models with a fixed and finite number of random effects. The main new innovation of this paper is in deriving the components of the distribution, which are not chi-squared. The proposed test statistics are used for lack-of-fit testing using wavelets, where the finest scale wavelet ...
Wavelet packet decomposition for the identification of corrosion type from acoustic emission signals KU Leuven
Corrosion causes a degradation of the structural integrity of petrochemical plants, nu- clear power plants, ships, bridges and other constructions containing steel with the con- sequence that people and the environment may be exposed to dangerous situations. The detection of corrosion and the prediction of the type of corrosion is studied in this article by means of the acoustic emission technique. We use a wavelet packet decomposition to ...