Research output: Contribution to journal › Article › peer-review
Final published version, 470 KB, PDF document
Original language | English |
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Pages (from-to) | 26-44 |
Number of pages | 19 |
Journal | Neural Computation |
Volume | 18 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2006 |
The sparsity of photons at very low light levels necessitates a nonlinear synaptic transfer function between the rod photoreceptors and the rod-bipolar cells. We examine different ways to characterize the performance of the pathway: the error rate, two variants of the mutual information, and the signal-to-noise ratio. Simulation of the pathway shows that these approaches yield substantially different performance at very low light levels and that maximizing the signal-to-noise ratio yields the best performance when judged from simulated images. The results are compared to recent data.
ID: 3969348