Figure 13.

Stereoresolution vs. dot density for human observers. The just-discriminable spatial frequency of the sinusoidal corrugation waveform is plotted as a function of dot density. The data are the averages for the two tested observers, JMA and MSB. Circles, squares, and diamonds represent the results, respectively, for stimuli that were not blurred, stimuli blurred by a Gaussian kernel whose standard deviation was 3 arcmin, and stimuli blurred by a Gaussian whose standard deviation was 6 arcmin. The black diagonal line represents the Nyquist frequency.