This paper presents an analysis on the contrast enhancement function combined with sharpening filter applied on digital Intra-oral dental radiographs images. Intra-oral dental radiograph is a common medium used in dentistry to examine gum related diseases. Due to the fact that radiograph images usually are noisy and low in contrast, research related to image enhancement is an active research ar...

Attention improves auditory performance in noisy environments by either enhancing the processing of task-relevant stimuli ("gain"), suppressing task-irrelevant information ("sharpening"), or both. In the present study, we investigated the effect of focused auditory attention on the population-level frequency tuning in human auditory cortex by means of magnetoencephalography. Using complex stimu...

Pan-sharpening is an important means to improve the spatial resolution of multispectral (MS) images. Although a large number pan-sharpening methods have been developed, improving MS while effectively maintaining its spectral information has not well solved so far, and it also taken as criterion measure whether sharpened product can meet practical needs. The back-projection (BP) method iterative...

The ability to accurately predict the dynamics of fast moving and deforming interfaces is interest a number applications including ink printing, drug delivery fuel injection. In current work we present new compressible framework within OpenFOAM which incorporates mitigation strategies for well known issue spurious currents. algebraic Volume-of-Fluid (VoF) method with additional interfacial trea...

The DC electropolishing process has been applied to the sharpening of tungsten wires in 2 M KOH aqueous solution. Necking of tungsten anodes takes place in the vicinity of the electrolyte-air interface. This results in the creation of two separate wire parts with nanosharp tips. Using image analysis, we demonstrate that the products of electrochemical reactions on the wire surface form a film w...