Summation of Sine-waves at Detection Threshold: One Way of Investigating Spatial-Frequency Channels
نویسندگان
چکیده
منابع مشابه
Area summation in human vision at and above detection threshold
The initial image-processing stages of visual cortex are well suited to a local (patchwise) analysis of the viewed scene. But the world's structures extend over space as textures and surfaces, suggesting the need for spatial integration. Most models of contrast vision fall shy of this process because (i) the weak area summation at detection threshold is attributed to probability summation (PS) ...
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lengths. Fur thermore , Schultz et al. , using artificial membranes with uniformly defined pores, found that for similar Stokes radius the globular proteins have larger reflection coefficients than those of the dextran fractions. Thus, in my opinion, it is erroneous to use the Stokes radius of dextran fractions to correlate the pore size of membranes. Miguel F. Refojo Eye Research Institute Bos...
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Radial Frequency (RF) contours provide a unifying system to represent familiar shapes, such as triangles (RF3), squares (RF4) and pentagons (RF5), but it is not clear whether these sorts of shapes are detected by separate RF-tuned processes, or instead by a common shape mechanism. It has been suggested that multiple mechanisms are responsible for the detection of globally processed RF patterns,...
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Kersten [Vision Res. 27, 1029 (1987)] reported that absolute efficiency for the detection of static, one-dimensional bandpass noise was high and approximately constant for stimulus bandwidths ranging from 1 to 6 octaves. This result implies that human observers integrated information efficiently across a wide range of spatial frequency. One interpretation of this result--and similar results obt...
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Article history: Received 17 February 2015 Received in revised form 17 July 2015 Accepted 10 August 2015 Available online 14 August 2015
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2016
ISSN: 1534-7362
DOI: 10.1167/16.4.17