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Optimal decoding given peripheral ganglion cell sampling. a. Approximate relative spatial resolution of the human visual system as a function of retinal eccentricity. Resolution is half the foveal resolution at 2.5 deg eccentricity. b. Calibrated gray scale image at full (foveal) resolution. c. Half-resolution image (2.5 deg eccentric) upsampled using linear interpolation. d. Half-resolution image upsampled using ideal decoder based on natural image statistics.
