Spatial frequency comparisons of rotated gratings
نویسندگان
چکیده
منابع مشابه
Speed, spatial-frequency, and temporal-frequency comparisons in luminance and colour gratings.
The perceived speed, temporal frequency, and spatial frequency of matched colour and luminance gratings were compared in separate experiments. The large factor by which colour gratings are perceived to be slower moving than matched luminance gratings cannot be explained by systematic differences in the perceived spatial frequency or in the perceived temporal frequency of the two types of grating.
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The detectability of contrast increments was measured as a function of the contrast of a masking or "pedestal" grating at a number of different spatial frequencies ranging from 2 to 16 cycles per degree of visual angle. The pedestal grating always had the same orientation, spatial frequency, and phase as the signal. The shape of the contrast-increment threshold versus pedestal contrast (TvC) fu...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 1979
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03208303