نتایج جستجو برای: perceptual measure
تعداد نتایج: 395551 فیلتر نتایج به سال:
We compare four subjective awareness measures in the context of a visual identification task and investigate quantitative differences in terms of scale use and correlation with task performance. We also analyse the effect of identification task decisions on subsequent subjective reports. Results show that awareness ratings strongly predict accuracy for all scale types, although the type of awar...
the present research identified major barriers of isfahan university teachers participation in electronic technology courses. a second goal of this study was to examine the effects of characteristics and demographics of university teachers on these barriers. in this research problems and barriers fell into three distinct categories: personal, perceptual, and contextual. a questionnaire was desi...
traditional and modern vocabulary instruction techniques have been introduced in the past few decades to improve the learners’ performance in reading comprehension. semantic mapping, which entails drawing learners’ attention to the interrelationships among lexical items through graphic organizers, is claimed to enhance vocabulary learning significantly. however, whether this technique suits all...
In this paper, we start by providing an overview of the measurement of quality of image. There are various objective methods which can measure the quality of the image. In this we are providing an idea which can measure the error between the actual image and reference image. And can calculate the quality of image. Keywords— Error Sensitivity Function, Perceptual Quality, Image Quality, Structur...
PURPOSE In prior work, a manually derived measure of vocal fold vibratory phase asymmetry correlated to varying degrees with visual judgments made from laryngeal high-speed videoendoscopy (HSV) recordings. This investigation extended this work by establishing an automated HSV-based framework to quantify 3 categories of vocal fold vibratory asymmetry. METHOD HSV-based analysis provided for cyc...
Symmetry is usually viewed as a discrete feature: an object is either symmetric or non-symmetric. In this presentation, symmetry is treated as a continuous feature and a continuous measure of symmetry (the Symmetry Distance) is defined. This measure can be easily evaluated for any shape or pattern in any dimension. A preliminary study presented here shows that the Symmetry Distance is commensur...
Signals from the bilateral vestibular labyrinths work in tandem to generate robust estimates of our motion and orientation in the world. The relative contributions of each labyrinth to behavior, as well as how the brain recovers after unilateral peripheral damage, have been characterized for motor reflexes, but never for perceptual functions. Here we measure perceptual deficits in a heading dis...
Most perceptual quantization algorithms use some kind of activity measure such as variance in determining the quantization step size for local macroblocks in MPEG coding. In this paper, we use directional total variation as a new kind of activity measure to develop a novel adaptive quantization algorithm. The scheme is contrasted with a method proposed by Puri and Aravind. Simulation result sug...
بهبود کیفیت سیگنال گفتار (speech enhancement)، نقش مهمی در سیستم های مخابراتی صوتی ایفا می کند. تکنیک های بهبود کیفیت سیگنال گفتار برای سمعک ها و وسایلی که در محیط های سیار استفاده می شوند، مانند تلفن های موبایل و hands free کاربرد زیادی دارند. روش های زیادی برای کاهش اثر نویز در سیگنال های صوتی ارائه شده است. از این میان می توان به روش های مبتنی بر تفریق طیفی، فیلتر وفقی، فیلتر وینر و تبدیل مو...
Implicit memory seems to be preserved in schizophrenia as a whole, but dissociations between conceptual and perceptual tasks and between accuracy and reaction time measures have appeared. The present research has revealed some methodological limitations in many studies to date that are focused on the study of perceptual implicit memory in schizophrenic patients using accuracy measures. The revi...
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