Results 11 to 20 of about 1,974,870 (293)
Evaluating Test Image Quality as a Function of illumation [PDF]
Engineering and Technology Journal, 2010 The optical imaging systems, do not give a perfect and ideal image. Butmostly give images with limited resolutions i.e. give images with blur edges. Thisblurring attributed to two main reasons.
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The role of spatial frequency information for ERP components sensitive to faces and emotional facial expression [PDF]
, 2005 To investigate the impact of spatial frequency on emotional facial expression analysis, ERPs were recorded in response to low spatial frequency (LSF), high spatial frequency (HSF), and unfiltered broad spatial frequency (BSF) faces with fearful or ...
Adolphs +67 more
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Image Fusion Algorithm of Focal Region Detection and TAM-SCM Based on SHT Domain
Xibei Gongye Daxue Xuebao, 2019 The selection of texture information and block ringing effect in multi-focus fusion process, a new multi-focus image fusion algorithm based on Three Activity Measures (TAM) excitation Spiking Cortical Model, (SCM) in shearlet (SHT) domain is proposed ...
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Distinct phase-amplitude couplings distinguish cognitive processes in human attention [PDF]
, 2018 Spatial attention is the cognitive function that coordinates the selection of visual stimuli with appropriate behavioral responses. Recent studies have reported that phase-amplitude coupling (PAC) of low and high frequencies covaries with spatial ...
Chacko, Ravi V. +8 more
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Brazilian Journal of Medical and Biological Research, 1997 Independence among channels processing different aspects of spatial information, including orthogonal stimuli, has been generally assumed in the literature. We tested independence between the processing of jo targets and the processing of either vertical
M.L.B. Simas, J.T. Frutuoso
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Frontiers in Systems Neuroscience, 2011 Controversy remains about how orientation selectivity emerges in simple cells of the mammalian primary visual cortex. In this paper, we present a computational model of how the orientation-biased responses of cells in lateral geniculate nucleus can ...
Levin eKuhlmann +1 more
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A fisheries acoustic multi-frequency indicator to inform on large scale spatial patterns of aquatic pelagic ecosystems [PDF]
, 2013 Fisheries acoustic instruments provide information on four major groups in aquatic ecosystems: fish with and without swim bladder (tertiary and quaternary consumers), fluidlike zooplankton (secondary consumers) and small gas bearing organisms such as ...
Bergen, Laurent, Trenkel, Verena
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Frontiers in Psychology, 2012 Previous studies have shown that complex visual stimuli, such as emotional facial expressions, can influence brain activity independently of the observers’ awareness. Little is known yet, however, about the informational correlates of consciousness—i.e.,
Verena eWillenbockel +4 more
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Frontiers in Human Neuroscience, 2017 Low spatial frequency (LSF) visual information is extracted rapidly from fearful faces, suggesting magnocellular involvement. Autistic phenotypes demonstrate altered magnocellular processing, which we propose contributes to a decreased P100 evoked ...
Adelaide Burt +3 more
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Development of spatial coarse-to-fine processing in the visual pathway [PDF]
, 2013 The sequential analysis of information in a coarse-to-fine manner is a fundamental mode of processing in the visual pathway. Spatial frequency (SF) tuning, arguably the most fundamental feature of spatial vision, provides particular intuition within the ...
Nirody, Jasmine A.
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