We derive the expression of an optimum non-Gaussian radar detector from the non-Gaussian spherically invariant random process (SIRP) clutter model and a bayesian estimator of the SIRP characteristic density. SIRP modelizes non-Gaussian process as a complex Gaussian process whose variance, the so-called texture, is itself a positive random variable (r.v.). After performing a bayesian estimation ...

The threshold voltage and current necessary for ventricular defibrillation was measured in dogs using capacitor-discharge and half-sinusoidal pulses of current of various durations. From these quantities the electrical strength required for defibrillation was determined and expressed as energy, peak current, and charge per gram of heart. The optimum current duration depends on the criterion sel...

This paper addresses the optimum selection of the boost current and threshold current control parameters for the ARCP soft switching technique. The parameters are derived based on a minimization of the output voltage distortion induced by the ARCP operation. The impact of the proper selection of the resonant parameters on the system design is discussed.

Motion estimation is regarded as vital importance for video coding. When designing search methods for motion estimation, both the estimation accuracy and computational complexity are the main considerations. The existing fast search methods such as TSS, NTSS, DS and ARPS can provide satisfactory result at a very low computational cost but within their own best application range. Besides, none o...

The clinical accuracy of diagnostic tests commonly is assessed by ROC analysis. ROC plots, however, do not directly incorporate the effect of prevalence or the value of the possible test outcomes on test performance, which are two important factors in the practical utility of a diagnostic test. We describe a new graphical method, referred to as a prevalence-value-accuracy (PVA) plot analysis, w...

Introduction American Diabetes Association (ADA) has officially endorsed glycosylated haemoglobin (HbA1c) as a diagnostic tool. The recommended cut-off for diagnosing diabetes is  6.5%. Objectives To compare use of HbA1c and fasting plasma glucose (FPG) to diagnose diabetes in an urban Sri Lankan community. Methods This cross-sectional study is based on baseline data from a prospective stu...

Threshold Segmentation is a kind of important image segmentation method and one of the important preconditioning steps of image detection and recognition, and it has very broad application during the research scopes of the computer vision. According to the internal relation between segment image and original image, a tomato image automatic optimization segmentation method (MI-OPT) which mutual ...

In this paper we show the two implementations of fractal (Pure-fractal and Wavelet fractal image compression algorithms) which have been applied on the images in order to investigate the compression ratio and corresponding quality of the images using peak signal to noise ratio (PSNR). And in this paper we also set the threshold value for reducing the redundancy of domain blocks and range blocks...