Figure 2.
The horizontal block diagram begins with the word input followed by a right-pointing arrow. A single vertical rectangular block appears next. Several dashed rectangular outlines labelled convolutional layer block enclose groups of vertical rectangular blocks. Inside the dashed outlines, blocks are labelled SpaConv B N plus Re l u and SubConv B N plus Re l u. These labelled blocks repeat in sequence across the diagram. Short horizontal connector lines link each block. The sequence ends with a single vertical rectangular block followed by the word output and a right-pointing arrow. A legend beneath the diagram includes a dashed rectangle labelled convolutional layer block, a solid rectangle labelled SpaConv B N plus Re l u, and another solid rectangle labelled SubConv B N plus Re l u.Schematic diagram of the backbone network
Source(s): Authors’ own work