Alignment Integration Network for Salient Object Detection and Its Application for Optical Remote Sensing Images

doi:10.3390/s23146562

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	Alignment Integration Network for Salient Object Detection and Its Application for Optical Remote Sensing Images
	X. Zhang, Y. Yu, Y. Wang, X. Chen and C. Wang
	2023
发表期刊	Sensors
ISSN	14248220
卷号	23 期号:14
摘要	Salient object detection has made substantial progress due to the exploitation of multi-level convolutional features. The key point is how to combine these convolutional features effectively and efficiently. Due to the step by step down-sampling operations in almost all CNNs, multi-level features usually have different scales. Methods based on fully convolutional networks directly apply bilinear up-sampling to low-resolution deep features and then combine them with high-resolution shallow features by addition or concatenation, which neglects the compatibility of features, resulting in misalignment problems. In this paper, to solve the problem, we propose an alignment integration network (ALNet), which aligns adjacent level features progressively to generate powerful combinations. To capture long-range dependencies for high-level integrated features as well as maintain high computational efficiency, a strip attention module (SAM) is introduced into the alignment integration procedures. Benefiting from SAM, multi-level semantics can be selectively propagated to predict precise salient objects. Furthermore, although integrating multi-level convolutional features can alleviate the blur boundary problem to a certain extent, it is still unsatisfactory for the restoration of a real object boundary. Therefore, we design a simple but effective boundary enhancement module (BEM) to guide the network focus on boundaries and other error-prone parts. Based on BEM, an attention weighted loss is proposed to boost the network to generate sharper object boundaries. Experimental results on five benchmark datasets demonstrate that the proposed method can achieve state-of-the-art performance on salient object detection. Moreover, we extend the experiments on the remote sensing datasets, and the results further prove the universality and scalability of ALNet. © 2023 by the authors.
DOI	10.3390/s23146562
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收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/68207
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X. Zhang, Y. Yu, Y. Wang, X. Chen and C. Wang. Alignment Integration Network for Salient Object Detection and Its Application for Optical Remote Sensing Images[J]. Sensors,2023,23(14).
APA	X. Zhang, Y. Yu, Y. Wang, X. Chen and C. Wang.(2023).Alignment Integration Network for Salient Object Detection and Its Application for Optical Remote Sensing Images.Sensors,23(14).
MLA	X. Zhang, Y. Yu, Y. Wang, X. Chen and C. Wang."Alignment Integration Network for Salient Object Detection and Its Application for Optical Remote Sensing Images".Sensors 23.14(2023).

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