Table 3.

Some key parameters in the nodule candidate detection sub-network (m represents the channels of the former layer)

Modules		Parameters
U-Net	Conv1	$3\times 3\times 64$, $\mathrm{stride}=1$
	Conv2	$3\times 3\times 128$, $\mathrm{stride}=2$
	Conv3	$3\times 3\times 256$, $\mathrm{stride}=2$
	Conv4	$3\times 3\times 512$, $\mathrm{stride}=2$
	Deconv1	$3\times 3\times 512$, $\mathrm{stride}=2$
	Deconv2	$3\times 3\times 256$, $\mathrm{stride}=2$
	Deconv3	$3\times 3\times 128$, $\mathrm{stride}=2$
	Deconv4	$3\times 3\times 64$, $\mathrm{stride}=2$
Inception	Conv1	$1\times 1\times (m/2)$, $\mathrm{stride}=1$
	Conv2	$1\times 1\times (m/2)$, $\mathrm{stride}=1$
	Conv3	$1\times 3\times (m/2)$, $\mathrm{stride}=1$
	Conv4	$3\times 1\times (m/2)$, $\mathrm{stride}=1$
	Conv5	$1\times 1\times m$, $\mathrm{stride}=1$
Dilated convolution	Di-conv1	$3\times 3\times m$, $\mathrm{stride}=1$, $\mathrm{dilation}\mathrm{rate}=2$