Conv_type

各种卷积操作

1.Convolutions

2.PointwiseConvolutions

来自Network IN Network

3.Spatial and Cross-Channel Convolutions

来自于Inception

4.Grouped Convolutions

来自AlexNet，后大量应用于ResNeXt（Inception-Resnet）

5.Separable Convolutions

DepthwiseSeparable Convolutions:深度可分离卷积，来自mobilenetv1
SpatiallySeparable Convolutions:空间可分离卷积

6.Flattened Convolutions

来自flattened convolutons

7.shuffle group Convoluions

来自shufflenet

8.Dilated Convolutions 空洞卷积

来自deeplab

9.Deformable Convolutions 可变形卷积

来自deformable

10.注意力attention