Algorithm 3 RSDC before applying $3\times 3$ standard convolution feature maps

Input: ${\mathbf{f}}^{\mathrm{input}}=\left\{f_{h,w}\right\},\mathrm{where}1\le h,w\le k_{rsdc}$ for$i=1$ to 3 do     for $j=1$ to 3 do         $f=\mathrm{rand}\left(f_{h,w}\right)$         while f in $f_{i,j}$ do            $f=\mathrm{rand}\left(f_{h,w}\right)$         end while         ${\mathrm{f}}_{i,j}=\mathrm{append}\left(f\right)$     end for end for Output: ${\mathbf{f}}^{\mathrm{output}}=\left\{{\mathrm{f}}_{i,j}\right\},\mathrm{where}1\le i,j\le 3$