Figure 12
Graphical visualization of the feedback processor of the DNP used in Example 6. The value of the feedback is obtained by a weighted sum of the outputs at each pixel of a \(16\times 16\) block (only five pixels are shown in each direction) processed by a temporal Volterra operator (represented by a cylinder). Each weight is the value of a Gaussian function evaluated at the distance between the location of the pixel and the center of the block