Introduction: one of the minimally invasive methods of treatmenting liver malignancies is Radiofrequency Ablation (RFA) which can be applied to primary or secondary tumors. Nevertheless, the disease recurrence is probable after RFA application partially due to the inadequate capability of temperature monitoring of the target tissue and visualizing the thermal damage. The goal of this work was t...

With a fixed time to acquire a magnetic resonance (MR) image, time can be spent to acquire better spatial resolution with decrease in signal-to-noise ratio (SNR) or decreased resolution with increase in SNR. This resolution/SNR tradeoff at fixed time has been investigated by a visual rater study using images of ex vivo mouse brains. Simulated images with a tradeoff between SNR and resolution we...

The choice of the grid for generating the sparsity inducing basis or rather a corresponding dictionary is a central point of compressed sensing and sparse approximation. A poorly chosen grid corrupts the reconstruction performance. Here we consider the problem of ground moving target indication from several – already processed – synthetic aperture radar images and apply a recently introduced me...

The first part of this paper presents a survey of the literature on automatic handwritten signature verification systems using binary or graylevel images, and focuses primarily on preprocessing techniques, feature or primitive extraction methods, comparison processes, and performance evaluation. With these previous studies in mind, we propose, in the second part of this paper, an image-understa...

Both theoretical and experimental studies suggest that response properties in the visual system are shaped by signals in the natural environment. Recent studies showed that, in the primary visual cortex (V1), neurons preferring light decrements (OFF stimuli) outnumber those preferring light increments (ON stimuli). However, it is not clear whether the OFF-dominance in V1 neurons is related to t...

conclusions off-loading shoes are suitable modalities to treat forefoot fractures. although no statistically significant difference was found between the groups, but due to the comparable outcomes, high patient satisfaction, and lack of complications, nonoperative treatment of forefoot fractures using off-loading shoes is recommended. results clinical and radiological :union:s were achieved in ...

Introduction The need exists for a functional MRI (fMRI) technique capable of artifact-free whole brain coverage, with good blood oxygenation level dependent (BOLD) contrast to noise ratio (CNR), and high temporal resolution. Conventional gradient echo (GRE) BOLD fMRI suffers from signal dropout in regions of magnetic field inhomogeneity, limiting coverage, while spin echo fMRI has reduced BOLD...

The study of sign languages provides a wide field of applications for computer vision systems, but the analysis of such gestures often leads to complex 3D reconstructions or to ambiguities. In this paper, we describe the architecture of an image analysis system that performs sign language analysis by using a prediction/verification approach. The system integrates a model of the sign language’s ...

The recognition of people orientation in single images is still an open issue in several real cases, when the image resolution is poor, body parts cannot be distinguished and localized or motion cannot be exploited. However, the estimation of a person orientation, even an approximated one, could be very useful to improve people tracking and re-identification systems, or to provide a coarse alig...