We address the issue of segmenting multiple textured objects in presence of a background texture. The proposed technique is based on Geodesic Active Contour (GAC) and can segment multiple textured objects from the textured background. For an input texture image, a texture feature space is created using scalogram obtained from discrete wavelet transform (DWT). Then, a 2-D Riemannian manifold of ...

Let G be a non–linear function of a Gaussian process {Xt}t∈Z with long–range dependence. The resulting process {G(Xt)}t∈Z is not Gaussian when G is not linear. We consider random wavelet coefficients associated with {G(Xt)}t∈Z and the corresponding wavelet scalogram which is the average of squares of wavelet coefficients over locations. We obtain the asymptotic behavior of the scalogram as the ...

In this paper, we propose a new entropy calculation method to observe the temporal change of dynamical systems. The proposed is based on windowed scalogram which has been introduced recently. Therefore, name “windowed entropy.” With method, can show evolution Boltzmann–Gibbs–Shannon over time using probability distribution obtained by normalized scalogram. Before applying series with complex dy...

This paper presents a method for the estimation of Evoked Potentials (EP) using an aposreriori time varying filter based on Discrete Wavelet Transform (DWT). The proposed filter uses Alternate Subensemble Averaging (ASA) to arrive at the signal and noise scalogram estimates. This filter, when applied on the Ensemble Average @A), leads to an improvement in the S m When applied on the individual ...

We present a new method for automatic detection of peaks in noisy periodic and quasi-periodic signals. The new method, called automatic multiscale-based peak detection (AMPD), is based on the calculation and analysis of the local maxima scalogram, a matrix comprising the scale-dependent occurrences of local maxima. The usefulness of the proposed method is shown by applying the AMPD algorithm to...

BACKGROUND One of the main and basic pillars of health system promotion is the equitable distribution of health facilities in order to ensure fair access of people in the community to the health services. The goal of this study was to classify the health structural indicators in Golestan Province using Scalogram analysis model. METHOD A descriptive study was conducted in 2010. Data related to...