Figure 2.

Network architecture. A) The basic cell of ResNet: the residual block. B) The sampled residual block. The difference is that the convolution of the first layer is performed with a 2-pixel stride. Correspondingly, 2-pixel stride sampling was performed before identity mapping. C) The ResNet architecture. The blocks shown in A) and B) are annotated with solid and dashed round-ended boxes, respectively.