the present study investigated comparatively the impact of two types of input enhancement (i.e. textual vs. compound enhancement) on developing grammar ability in iranian efl setting. sixty-five female secondary high school students were selected as a homogenous sample out of about a 100-member population based on nelson language proficiency test. then, their grammar ability was measured based ...

1 Abstract This paper describes a methodology for building robust Hidden Markov Model (HMM) based speech recognition system. The ultimate goal is to build a reliable large vocabulary isolated words speech recogniser. The model, that we are dealing with, is of continuous HMM type (CHMM). The topology selected is the left-right one as it is quite successful in speech recognition due to its consis...

PURPOSE The purpose of this study was to determine texture parameters reflecting the background parenchymal enhancement (BPE) of the breast, which were acquired using texture analysis (TA). METHODS We investigated 52 breasts of the 26 subjects who underwent dynamic contrast-enhanced MRI. One experienced reader scored BPE visually (i.e., minimal, mild, moderate, and marked). TA, including 12 t...

An experimentally supported model of cortical background activity is used to investigate the role of such activity in neural gain control. The model demonstrates the feasibility of a scheme for contrast enhancement where by the overall intensity of an input pattern adjusts the dynamic range of a neuron such that it remains sensitive to contrast over a wide range of overall intensities. keywords...

In this paper, we propose a new scheme to enhance temporal consistency of depth sequences for multi-view depth estimation. When we compute the matching cost for estimating appropriate depth, we add a temporal weighting function to the conventional matching function. Furthermore, since the temporal weighting function only works well for the background, we apply it only to the background. Experim...

This paper presents a new method for poor lighting contrast enhancement of MRI images based on the Weber‟s law. Background of MRI images is identified by using the contrast enhancement transformations. The contrast image transformation can be defined by two operators: opening and closing. The first operator employs information from block analysis, while the second transformation utilizes the op...

BACKGROUND Previously, a strong positive association between background parenchymal enhancement (BPE) at magnetic resonance imaging (MRI) and breast cancer was reported in high-risk populations. We sought to determine, whether this was also true for non-high-risk patients. METHODS 540 consecutive patients underwent breast MRI for assessment of breast findings (BI-RADS 0-5, non-high-risk scree...