Figure 6

Identified filters of the DNP model of the photoreceptor given in Example 2. (a) \(\widehat{\mathcal{P}h^{1}_{1}}\), (b) \(\widehat{\mathcal{P}h^{2}_{1}}\), (c) \(\widehat{\mathcal{P}h^{1}_{2}}\), (d) \(\widehat{\mathcal{P}h^{2}_{2}}\)