Orientation statistics of natural scenes: spatial-scale and temporal aspects
نویسندگان
چکیده
منابع مشابه
Statistics of spatial cone-excitation ratios in natural scenes.
For some sets of surfaces, the spatial ratios of cone-photoreceptor excitations produced by light reflected from pairs of surfaces are almost invariant under illuminant changes. These sets include large populations of spectral reflectances, some of which represent individual natural surfaces but not their relative abundances in nature. The aim of this study was to determine whether spatial cone...
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The visual system performs complicated operations such as visual grouping e*ciently on its natural input. To study this adaptation to natural stimuli we measure spatio-temporal interactions of orientations in scenes with natural temporal structure recorded using a camera mounted to a cat’s head. We -nd long range spatial and long lasting temporal correlations of orientations with collinear inte...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2011
ISSN: 1534-7362
DOI: 10.1167/11.11.1162