ASPP is Atrous spatial pyramid pooling. MASPP refers to replacing the 1 × 1 convolution layer of ASPP with a 3 × 3 depthwise separable convolution layer. DSPM is our Double Attention Pyramid Module.
Concat refers to the use of concatenation operations to fuse the output of DAPM. SFM: Selective Fuse Module. SSFM is the addition of the Spatial Attention Mechanism to each of the two branches of SFM.