Synthetic Aperture Radar (SAR) is the only way to evaluate deformation of the Earth’s surface from space on the order of centimeters and millimeters due to its coherent nature and short wavelengths. Hence, by this means the long term risk monitoring and security are performed as precisely as possible. Traditional SAR imaging delivers a projection of the 3-D object to the two dimensional (2-D) a...

background: asthma is caused by the combination of different factors. current concepts of asthma pathogenesis emphasize on gene-environment interactions. mega-genome scanning projects revealed that different single nucleotide polymorphisms (snps) are related to asthma susceptibility. rs7216389-t is one of them that is related to childhood asthma and its effect on childhood asthma severity has b...

objective: when none of digital systems and scanners is accessible and it is essential to have digitized images of conventional radiographs, digital cameras can be used. the aim of this study was to investigate whether digital images obtained by different resolutions of a digital camera are matched to the original radiographs in evaluation of caries. methods: in this diagnostic accuracy in vitr...

This note is a rough summary of the super resolution methods that I recently learned. To begin with, what’s the definition of super resolution? Super Resolution (SR) is a class of techniques that enhance the resolution of an image. For example, given a 256 × 256 image as input, the output of a SR process is a corresponding 512× 512 image. Notice that super resolution is a highly ill-posed probl...

This paper deals with the problem of reconstructing a highresolution image from an incomplete set of undersampled, blurred and noisy images shifted with subpixel displacement. We derive mathematical expressions for the calculation of the maximum a posteriori estimate of the high resolution image and the estimation of the parameters involved in the model. We also examine the role played by the p...

Diffusion tensor magnetic resonance imaging (DTMRI) is usually used to detect the displacement distribution of water molecules in biological structure. However, in post-mortem heart fibre imaging, the low spatial resolution does not allow investigating the cardiac fibre structure at microscopic scale. In this paper, the myocyte arrangement of a human heart is investigated at a high resolution o...

In this paper we consider the problem of reconstructing a high resolution image from a set of undersampled and degraded frames, all of them obtained from high resolution images with unknown shifting displacements between them. We derive an iterative method to estimate the unknown shifts and the high resolution image given the low resolution observations. Finally, the proposed method is tested o...