Fig. 4

MFCA-Net framework. a Frame diagram of MFCA-Net. b ConvBN block, which includes three convolutional blocks, with each block consisting of a convolution layer, a batch normalization layer and a ReLU activation function.

MFCA-Net framework. a Frame diagram of MFCA-Net. b ConvBN block, which includes three convolutional blocks, with each block consisting of a convolution layer, a batch normalization layer and a ReLU activation function.