Review Article

The Progress of Medical Image Semantic Segmentation Methods for Application in COVID-19 Detection

Figure 9

An example of an available convolution structure (Atrous convolution or hole convolution). (a) Convolution layer with core size; a normal displacement operation with expansion parameter-1, (b) open convolution with expansion parameter-2, and (c) open convolution with expansion parameter-3 [95].
(a)
(b)
(c)