Orientation-position coding and invariance characteristics of pattern discrimination
نویسندگان
چکیده
منابع مشابه
Modeling spatial integration and contrast invariance in visual pattern discrimination.
PURPOSE Human pattern discrimination performance has been reported to be largely independent of stimulus contrast but to depend on stimulus area. The authors propose a model that combines the effects of spatial integration and contrast. The model is based on the computation of similarity between pattern templates in memory and signals to be discriminated using normalized correlation. There are ...
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15 صفحه اولOrientation discrimination and variability of torsional eye position in congenital nystagmus
Thresholds for discriminating the orientation of unreferenced horizontal and vertical lines were measured in subjects with congenital nystagmus (CN) and normal observers and compared to the variability of torsional eye position. Orientation thresholds were determined for horizontal and vertical lines between 0.7 degrees and 5.6 degrees in length, that were presented binocularly for 20-1280 ms. ...
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The change in apparent orientation of lines and gratings induced by surrounding or preceding patterns of a different orientation (the tilt illusion and tilt after-effect) has been abundantly documented, but there is no unanimity about the effect of such inducing patterns on orientation discrimination thresholds. In particular, because inducing contours that are almost orthogonal cause the direc...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 1984
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03202676