We use 𝐷𝑜𝑢𝑡𝑁=𝐞𝑖,𝑘+2DoutN=ei,k+2 to represent the first sample distance that is not in the neighborhood, 𝐷𝑠𝑢𝑚𝑁=∑𝑘+1ℎ=2𝐞𝑖ℎDsumN=∑h=2k+1eih, as the sum of the neighbor distance for the i-th row, and 𝐷𝑁=𝐞𝑖,𝑗+1DN=...
can find the patterns that low-frequency filters are more visible along the layer, the estimated filters are still noisy. To show the patterns more clearly, we visualized them as spectrum in the frequency domain and sorted them by the frequency of the peak magnitude inFigure 3. ...