It has been lately shown that noise tracking and speech denoising can be improved by a postprocessor established on a maximum a-posteriori based (MAP-B) noise power spectral density (PSD) estimation algorithm. In the current contribution we investigate the MAP-B estimator by carrying out a quality analysis comprising the following three steps. First, we analyse the estimator with respect to unb...

Many approaches to Bayesian image segmentation have used maximum a posteriori (MAP) estimation in conjunction with Markov random fields (MRF). Although this approach performs well, it has a number of disadvantages. In particular, exact MAP estimates cannot be computed, approximate MAP estimates are computationally expensive to compute, and unsupervised parameter estimation of the MRF is difficu...

Removal of speckle noise from Synthetic Aperture Radar (SAR) images is an important step before performing any image processing operations on these images. This paper presents a novel Stationary Wavelet Transform (SWT) based technique for the purpose of removing the speckle noise from the SAR returns. Maximum a posteriori probability (MAP) condition which uses a prior knowledge is used to estim...

The strategy may be represented by a strategic map (SM).According to Kaplan and Norton, SM are built up to obtain constant communication of the objec-tives to all employees. They have a simple layout, are general and consistent, and help achieve better implementation of strategies so that employees tolerate changes that they initially resisted and distrusted in their companies.This paper sugges...

Being outdoors in a natural environment is thought to be restorative and relaxing (Kaplan & Kaplan, 1989). For people with dementia, nature and outdoor spaces (‘ingericht groen’) can provide a stimulating environment with exposure to light and sensory experiences (Burns et al. 2002; GuissetMartinez et al., 2013) as well as engagement in pleasant activities (Mac-Donald, 2002). It is reported tha...

Interferometric synthetic aperture radar (InSAR or IfSAR), is a geodetic technique uses two or more single look complex synthetic aperture radar (SAR) images to produce maps of surface deformation or digital elevation. It has applications as well, for monitoring of geophysical natural hazards, for instance earthquakes, volcanoes and landslides, also in engineering, in particular recording of su...

We consider the inversion of a linear operator with centered Gaussian white noise by MAP estimation with a Gaussian prior distribution on the solution. The actual estimator is computed approximately by a numerical method. We propose a relation between the stationarity measure of this approximate solution to the mean square error of the exact solution. This relation enables the formulation of a ...

[1] Refractivity from clutter (RFC) refers to techniques that estimate the atmospheric refractivity profile from radar clutter returns. A RFC algorithm works by finding the environment whose simulated clutter pattern matches the radar measured one. This paper introduces a procedure to compute RFC estimator performance. It addresses the major factors such as the radar parameters, the sea surface...