Background Fibrosis is a common end-point in pathological processes. It is unclear, however, if diffuse fibrosis occurs early in the pathogenesis of hypertrophic cardiomyopathy (HCM). The purpose of this study was to evaluate the presence of diffuse myocardial fibrosis in children and adolescents with HCM using quantification of T1 changes late after gadolinium administration and to assess for ...

1 Hougen and Ahuja This 1993 paper [2] is the first method to approach the multiple light source problem. It uses a combination of stereo, light source estimation, and shape from shading methods for determining the shape of objects. This summary will focus on the proposed light source estimation technique and it’s integration in the system. Four main assumptions are stated: 1. The light sources...

We identify and study two types of “accidental” images that can be formed in scenes. The first is an accidental pinhole camera image. The second class of accidental images are “inverse” pinhole camera images, formed by subtracting an image with a small occluder present from a reference image without the occluder. Both types of accidental cameras happen in a variety of different situations. For ...

We show that spoof surface plasmons can be used to control the reflection of terahertz radiation at the output facet of a parallel-plate waveguide. Using a periodic groove pattern on the output face, reflectivity approaching 100% can be achieved within a limited spectral range. Unlike the conventional geometry for plasmon-enhanced transmission, this approach enables a unique method for studying...

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In 16 infants with intractable diarrhoea, latent otomastoiditis was found in 9 (3 at necropsy and 6 at myringotomy-antrotomy). In 5 of the 6 operated group, surgery was followed by a striking cessation of the diarrhoea and with weight gain. It is concluded that (1) latent otomastoiditis may be a perpetuating factor in intractable diarrhoea; (2) myringotomy-antrotomy should be considered if othe...

This chapter focuses on correctly recognizing faces in the presence of large illumination variation. Our aim is to do this by synthesizing an illumination normalized image using Quotient Image-based techniques (Shashua et al., 2001, Wang et al., 2004, Chen et al., 2005, Nishiyama et al., 2006, Zhang et al., 2007, and An et al., 2008). These techniques extract an illumination invariant represent...

Interreflections exhibit a number of challenges for existing shape-from-intensity methods that only assume a direct lighting model. Removing the interreflections from scene observations is of broad interest since it enhances the accuracy of those methods. In this paper, we propose a method for removing interreflections from a single image using fluorescence. From a bispectral observation of ref...

Coherent optical metrology is a basic course for physics engineering students specialised in optics. Simulation proved to be a useful aid in studying it: the effect of the various parameters and the errors of the components can be separately traced for optimising various optical arrangements. The simulation package developed helps in studying the phenomena covered in the subject: diffuse surfac...

We propose a method that uses the point spread function of specular reflection (SR-PSF) to simulate paper gloss. The SR-PSF is defined as the impulse response of specular reflection, which is the distribution of light intensity reflected from microscopic facets on the surface of the paper. In this study, we used a flat sample holder and measured the SR-PSFs of six paper samples, each of which h...