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The U2Net model has shown good performance in salient object detection (SOD) because of its unique U\u2010shaped residual structure and the U\u2010shaped structural backbone incorporating feature information of different scales. However, in the U\u2010shaped structure, the global semantic information computed from the topmost layer may be gradually interfered by the large amount of local information dilution in the top\u2010down path, and the U\u2010shaped residual structure has insufficient attention to the features in the salient target region of the image and will pass redundant features to the next stage. To address these two shortcomings in the U2Net model, this paper proposes improvements in two aspects: to address the situation that the global semantic information is diluted by local semantic information and the residual U\u2010block (RSU) module pays insufficient attention to the salient regions and redundant features. An attentional gating mechanism is added to filter redundant features in the U\u2010structure backbone. A channel attention (CA) mechanism is introduced to capture important features in the RSU module. The experimental results prove that the method proposed in this paper has higher accuracy compared to the U2Net model.<\/jats:p>","DOI":"10.1049\/sil2\/6606572","type":"journal-article","created":{"date-parts":[[2024,11,29]],"date-time":"2024-11-29T04:05:44Z","timestamp":1732853144000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Att\u2010U2Net: Using Attention to Enhance Semantic Representation for Salient Object Detection"],"prefix":"10.1049","volume":"2024","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-7313-0508","authenticated-orcid":false,"given":"Chenzhe","family":"Jiang","sequence":"first","affiliation":[]},{"given":"Banglian","family":"Xu","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1466-2542","authenticated-orcid":false,"given":"Qinghe","family":"Zheng","sequence":"additional","affiliation":[]},{"given":"Zhengtao","family":"Li","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1787-2978","authenticated-orcid":false,"given":"Leihong","family":"Zhang","sequence":"additional","affiliation":[]},{"given":"Zimin","family":"Shen","sequence":"additional","affiliation":[]},{"given":"Quan","family":"Sun","sequence":"additional","affiliation":[]},{"given":"Dawei","family":"Zhang","sequence":"additional","affiliation":[]}],"member":"265","published-online":{"date-parts":[[2024,11,29]]},"reference":[{"key":"e_1_2_11_1_2","doi-asserted-by":"publisher","DOI":"10.1109\/TPAMI.2016.2636150"},{"key":"e_1_2_11_2_2","unstructured":"HouQ. 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