Figure3

Figure 3. Overall encoder-decoder architecture of the proposed SANet. E_i represents the encoder at the i-th stage. D_i indicates the decoder at the i-th stage. S_i and R_i denote the output feature maps of the encoder and the decoder at the i-th stage, respectively. P_i stands for the predicted saliency map, and P₁ is the final prediction result. G is the ground-truth saliency map. PPM: Pyramid pooling module; MFA: multi-scale feature aggregation.