Image reconstruction examples.

<p>We compare reconstructions from two different codes: whitening and the proposed, optimal model. The <i>original signal</i> (121×121 pixels) is degraded with blur and with different levels of sensory noise (−10 to 20 dB), resulting in the <i>observed signals</i>, where the percentage indicates the MSE relative to the original signal. These are encoded under two different cell ratios: 1∶1 (<i>fovea</i>) and 16∶1 (<i>periphery</i>) for each noise level. The <i>reconstructed signals</i> are obtained with the optimal decoding matrices, where the percentage indicates the MSE relative to the original signal, which can also be read out in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1003761#pcbi-1003761-g005" target="_blank">Figure 5</a> (labeled by open and closed triangles for the respective eccentricities).