Results 241 to 250 of about 226,240 (293)

Contour integration: an integral evaluated

International Journal of Mathematical Education in Science and Technology, 1988
In this paper a simple integral is considered which does not appear in standard lists of integrals. A substitution is given which allows the integral to be evaluated. It is then shown how the integral may be formally evaluated by appealing to complex variable theory.
A. Sackfield, D.A. Hills
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Contour integration and cortical processing

Journal of Physiology-Paris, 2003
Our understanding of visual processing in general, and contour integration in particular, has undergone great change over the last 10 years. There is now an accumulation of psychophysical and neurophysiological evidence that the outputs of cells with conjoint orientation preference and spatial position are integrated in the process of explication of ...
R F, Hess, A, Hayes, D J, Field
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Indented Contour Integrals

2011
In previous lectures, when evaluating the real improper integrals we assumed that the integrand has no singularity over the whole interval of integration. In this lecture, we shall show that by using indented contours some functions which have simple poles at certain points on the interval of integration can be computed.
Ravi P. Agarwal, Kanishka Perera, Sandra Pinelas   +2 more
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Integration of contours: new insights

Trends in Cognitive Sciences, 1999
Psychophysical, neurophysiological and anatomical research of the last few years has converged on a new explanation of how the components of a contour become integrated. Borrowing from the Gestalt rules of good continuation, this research suggests that components of a curved contour become integrated when the alignment follows specific rules.
, Hess, , Field
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Collinear interactions and contour integration

Spatial Vision, 2000
The visibility of a local target is influenced by the global configuration of the stimulus. Collinear configurations are a specific case in which facilitation or suppression of the target has been found to be dependent on the contrast threshold of the target.
U, Polat, Y, Bonneh
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Contour integration in amblyopic monkeys

Visual Neuroscience, 2003
Amblyopia is characterized by losses in a variety of aspects of spatial vision, such as acuity and contrast sensitivity. Our goal was to learn whether those basic spatial deficits lead to impaired global perceptual processing in strabismic and anisometropic amblyopia. This question is unresolved by the current human psychophysical literature.
Petra, Kozma, Lynne, Kiorpes
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An electrical contour integrator†

International Journal of Control, 1971
A simple electrical system capable of evaluating the contour integrals involved in the transformations between Laplace (frequency) and time domains as developed by the authors is described in this paper. Given the frequency response data of a fixed-parameter linear system, its transient response can be evaluated using this integral analyser.
GANTI PRASADA RAO, R. SUBBAYYAN, P. R. RANGASWAMY, R. SHANMUGAM, R. SRIDHARAN, K. P. SRINIVASAN   +5 more
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