Results 271 to 280 of about 75,296 (317)

Perceptual image distortion

Proceedings of 1st International Conference on Image Processing, 2002
In this paper, we present a perceptual distortion measure that predicts image integrity far better than mean-squared error. This perceptual distortion measure is based an a model of human visual processing that fits empirical measurements of the psychophysics of spatial pattern detection. The model of human visual processing proposed involves two major
P.C. Teo, D.J. Heeger
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Perceptual Distortion in Homonymous Paracentral Scotomas

Journal of Neuro-Ophthalmology, 2009
Cortical remapping after peripheral or central visual deafferentation alters visual perception, but it is unclear whether such a phenomenon impinges on areas remote from a scotoma. To investigate this question, we studied variations of perceptual spatial distortion in the visual field of patients with homonymous paracentral scotoma.Two patients with ...
Mavrakanas, Nikolaos, Dang-Burgener, Nathalie, Lorincz, Erika, Landis, Theodor, Safran, Avinoam B.   +4 more
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Perceptual Distortions in Visual-Evoked Potentials

American Journal of Ophthalmology, 1981
We tested ten healthy men, ranging in age from 24 to 55 years, to determine whether "drifting" of a fixation target during pattern-stimulus testing was the result of stimulus-induced ocular movements or a purely perceptual response with no oculomotor basis.
W R, Klemm, W D, Gibbons, R G, Allen, J M, Harrison   +3 more
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Typical perceptual organization in autism: Perceptual grouping and spatial distortion

Autism Research, 2019
The extensive literature on global–local processing in people with autism spectrum disorder (ASD) has recently shifted from arguing for a processing impairment among those with ASD to positing an attenuated preference for global processing. One suggestion is that the fast extraction of the global gist is less efficient in ASD, in contrast to the ...
Ravit Avraam, Nahal Binur, Bat‐Sheva Hadad   +2 more
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Personality Factors in Perceptual Distortion

The Journal of General Psychology, 1959
(1959). Personality Factors in Perceptual Distortion. The Journal of General Psychology: Vol. 61, No. 2, pp. 181-188.
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PERCEPTUAL DISTORTION INDUCED BY REASONING

British Journal of Psychology, 1966
The aim of this investigation was to compare the effects of three different degrees of expectancy on the perception of relative length. It was assumed that expectancy would be ( a ) maximal when erroneous information about the relative length of two equal lines was deduced
P. C. WASON, ADÈLE KOSVINER
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Perceptual Depth Quality in Distorted Stereoscopic Images

IEEE Transactions on Image Processing, 2017
Subjective and objective measurement of the perceptual quality of depth information in symmetrically and asymmetrically distorted stereoscopic images is a fundamentally important issue in stereoscopic 3D imaging that has not been deeply investigated. Here, we first carry out a subjective test following the traditional absolute category rating protocol ...
Jiheng Wang, Shiqi Wang, Kede Ma, Zhou Wang   +3 more
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Studies in Perceptual Distortion

A.M.A. Archives of General Psychiatry, 1960
Introduction A series of studies has been planned to test the hypotheses (1) that whenever perceptual distortions are induced, by whatever means, the distorting process begins with changes in the orientational percepts—of time, space, body boundary, movement in space, and the gravity-bound feeling of weight—and that these changes proceed in a regular,
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Residual perceptual distortion in recovered hemispatial neglect

Neuropsychologia, 1999
In most neglect patients, line bisection errors become smaller on repeated tests over the months following the lesion. We have tried to determine in two typical patients whether this is because of a real reduction in the perceptual distortions that appear to underlie line bisection errors in neglect, or whether it reflects a learned behavioural ...
Harvey, M, Milner, AD
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Perceptual Distortions in Cross-Cultural Interrogations

Journal of Cross-Cultural Psychology, 1994
Dutch police officers often assess Surinamer citizens more negatively than Dutch citizens. The principle of correspondence offers a possible explanation. According to this principle, a lack of correspondence between White police officers and Surinamer citizens results in a negative assessment of the Surinamer citizens.
Vrij, Aldert, Winkel, F.
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