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论文类型：期刊论文

发表时间：2020-10-21

发表刊物：NEUROCOMPUTING

收录刊物：SCIE

卷号：411

页面范围：416-427

ISSN号：0925-2312

关键字：Salient object detection; Feature fusion; Channel-wise attention; Position attention

摘要：Though with the rapid development of deep learning, salient object detection methods have achieved increasingly better performance, how to get effective feature representation to predict more accurate sal-iency maps is still a burning problem we need to consider. To overcome this situation, most previous works tend to focus on skip-based architecture to integrate hierarchical information of different scales and layers. However, a simple concatenation of high-level features and low-level features is not all-powerful because cluttered and noisy information can cause negative consequences. Concerning the issue mentioned above, we propose a Multi-Attention guided Feature-fusion network (MAF) which can allevi-ate the problem from two aspects. For one thing, we use a novel Channel-wise Attention Block (CAB) to in charge of message passing layer by layer from a global view, which utilizes the semantic cues in the higher convolutional block to instruct the feature selection in the lower block. For another, a Position Attention Block (PAB) also works on integrated features to model pixel relationships and capture rich contextual dependencies. Under the guidance of multi-attention, discriminative features are selected to conduct a new end-to-end densely supervised encoder-decoder network which detects salient objects more uniformly and precisely. As the experimental results on five benchmark datasets show, our meth-ods perform favorably against other state-of-the-art approaches. (c) 2020 Elsevier B.V. All rights reserved.