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Sampling irregularity perturbs visual reconstruction

Nyman, G. ; Greenlee, Mark W. ; Laurinen, P.


We explored the human observer’s ability to detect and discriminate sine-wave and square-wave gratings that were sampled at intervals varying from 4.7 to 9.4 arcmin. To study the effect of sampling irregularity on visual performance, we varied the position of each line sample on the basis of a Gaussian probability distribution, the standard deviation of which varied from 0 (regular sampling) to ...


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