نتایج جستجو برای: visual elements

تعداد نتایج: 624988  

2015
Raj Kumar Gupta Megha Pandey Alex Yong Sang Chia

Mid-level image features have been shown to be helpful to bridge the semantic gap between low-level and high-level image representations. Many existing methods to learn mid-level visual elements consider each mid-level feature individually, and do not take their mutual relationships into account. We follow the intuitive idea that learning discriminative combinations of visual elements can help ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Scott O Murray Daniel Kersten Bruno A Olshausen Paul Schrater David L Woods

Visual perception involves the grouping of individual elements into coherent patterns that reduce the descriptive complexity of a visual scene. The physiological basis of this perceptual simplification remains poorly understood. We used functional MRI to measure activity in a higher object processing area, the lateral occipital complex, and in primary visual cortex in response to visual element...

Journal: :CoRR 2017
Zoya Bylinskii Sami Alsheikh Spandan Madan Adrià Recasens Kimberli Zhong Hanspeter Pfister Frédo Durand Aude Oliva

We introduce the problem of visual hashtag discovery for infographics: extracting visual elements from an infographic that are diagnostic of its topic. Given an infographic as input, our computational approach automatically outputs textual and visual elements predicted to be representative of the infographic content. Concretely, from a curated dataset of 29K large infographic images sampled acr...

2010
Alice Rokszin Zita Márkus Gábor Braunitzer Antal Berényi György Benedek Attila Nagy

Motion perception is the process through which one gathers information on the dynamic visual world, in terms of the speed and movement direction of its elements. Motion sensation takes place from the retinal light sensitive elements, through the visual thalamus, the primary and higher visual cortices. In the present review we aim to focus on the extrageniculo-extrastriate cortical and subcortic...

Journal: :Vision Research 2001
Julie Epelboim Patrick Suppes

The Oculomotor Geometry Reasoning Engine (OGRE) was proposed to model eye movements and visual working memory during problem solving in geometry. OGRE postulates that geometrical elements from diagrams are added to visual working memory when they are scanned. Newly-added elements overwrite elements already in memory. The model was applied to eye-movement patterns of three subjects: two geometry...

Journal: :Physical chemistry chemical physics : PCCP 2015
Xi Liu Yulia Ryabenkova Marco Conte

The activation and use of oxygen for the oxidation and functionalization of organic substrates are among the most important reactions in a chemist's toolbox. Nevertheless, despite the vast literature on catalytic oxidation, the phenomenon of autoxidation, an ever-present background reaction that occurs in virtually every oxidation process, is often neglected. In contrast, autoxidation can affec...

Journal: :Vision Research 2002
William H.A Beaudot

Evidence that visual grouping is facilitated when elements comprising a foreground figure are presented simultaneously, and are temporally separated from elements comprising the background, has suggested cortical synchronous oscillations as a possible neural substrate. Supporting this theory, Usher and Donnelly (Nature 394 (1998) 179) showed in one of their experiments that contour integration ...

Journal: :Journal of experimental psychology. Human perception and performance 2013
Kirsten O'Hearn Steven Franconeri Catherine Wright Nancy Minshew Beatriz Luna

Evidence suggests that people with autism rely less on holistic visual information than typical adults. The current studies examine this by investigating core visual processes that contribute to holistic processing--namely, individuation and element grouping--and how they develop in participants with autism and typically developing (TD) participants matched for age, IQ, and gender. Individuatio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد 1388

the present research was conducted to accomplish two purposes. firstly, it aimed to explore and describe schematic structure or what halliday and hassan (1989, p.64) have called “generic structure potential” (gsp) of american english, iranian persian and iranian english newspaper editorials within systemic functional linguistics. secondly, a quantitative cross-comparison was made to investigate...

Journal: :The Journal of the Acoustical Society of America 2015
Xinxin Ren Jian Kang

Visual attention in tranquility evaluations has been examined by eye tracking experiments using audiovisual materials collected in traditional villages of China. The results show that without sound stimuli, the attention areas in tranquility evaluations are more concentrated, compared with those in visual aesthetic quality evaluations. With sound stimuli, the attention areas of tranquility eval...

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