Fifty patients whose sera contained a speckled antinuclear antibody (ANA) were interviewed and examined to determine if there was any relationship between their clinical manifestations and the presence of certain serological markers. The results suggest that speckled ANA is usually found in patients with definite connective tissue diseases, but a significant minority have incomplete or early st...

In this letter, we aim to address a synthetic aperture radar (SAR) despeckling problem with the necessity of neither clean (speckle-free) SAR images nor independent speckled image pairs from same scene, and practical solution for (PSD) is proposed. First, an adversarial learning framework designed generate speckled-to-speckled (S2S) scene in situation where only single are available. Then, S2S ...

This paper describes the application of the first fully wireless network of inertial sensors for full-body 3-D motion capture – the Orient-2 system, to real-time on-body analysis of the golf swing. The golfer-club system is modelled as a double pendulum. The factors which affect the efficiency of the golf swing are outlined, such as the length of the back swing, the wrist-cock angle, swing plan...

Speckle patterns produced by random optical fields with two (or more) widely different correlation lengths exhibit speckle spots that are themselves highly speckled. Using computer simulations and analytic theory we present results for the point singularities of speckled speckle fields, namely, optical vortices in scalar (one polarization component) fields and C points in vector (two polarizati...

In this paper we describe an approximation of speckled image observation (attachment to data) laws by generalized gaussian pdfs. We use Kullback-Leibler (KL) divergence (entropy) for this purpose. This leads to a mathematical model which can be useful for speckled image restoration and for related hyperparamater estimation.

We study screening of optical singularities in random optical fields with two widely different length scales. We call the speckle patterns generated by such fields speckled speckle, because the major speckle spots in the pattern are themselves highly speckled. We study combinations of fields whose components exhibit short- and long-range correlations and find unusual forms of screening.

Multimodal Gold-speckled silica nanoparticles as contrast agents for noninvasive imaging with magnetic resonance imaging and photoacoustic tomography have been prepared in a simple one-pot synthesis using nonionic microemulsions. Magnetic resonance contrast is provided through gadolinium incorporated in the silica matrix, whereas the photoacoustic signal originates from nonuniform, discontinuou...