a question about the chosen of dilation rate

[MMMaverick]

Thank you for your awesome work!
I'm confused about the chosen of dilation rate.Is dilation rate supposed to be bigger than H/2 or W/2,i noticed that border_input = kernel_dim + 2 * dilation + 1 ,pad = kernel_dim + dilation,(border_input - pad = dilation + 1) should be bigger than half size of feature,if dilation rate + 1 is smaller than the half size of feature,the center point may not be masked.