Scale-Semantic Joint Decoupling Network for Image-text Retrieval in Remote Sensing

• URL: http://arxiv.org/abs/2212.05752v1
• Date: Mon, 12 Dec 2022 08:02:35 GMT
• Title: Scale-Semantic Joint Decoupling Network for Image-text Retrieval in Remote Sensing
• Authors: Chengyu Zheng, Ning song, Ruoyu Zhang, Lei Huang, Zhiqiang Wei, Jie Nie (corresponding author)
• Abstract summary: We propose a novel Scale-Semantic Joint Decoupling Network (SJDN) for remote sensing image-text retrieval. Our proposed SSJDN outperforms state-of-the-art approaches in numerical experiments conducted on four benchmark remote sensing datasets.
• Score: 23.598273691455503
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Image-text retrieval in remote sensing aims to provide flexible information for data analysis and application. In recent years, state-of-the-art methods are dedicated to ``scale decoupling'' and ``semantic decoupling'' strategies to further enhance the capability of representation. However, these previous approaches focus on either the disentangling scale or semantics but ignore merging these two ideas in a union model, which extremely limits the performance of cross-modal retrieval models. To address these issues, we propose a novel Scale-Semantic Joint Decoupling Network (SSJDN) for remote sensing image-text retrieval. Specifically, we design the Bidirectional Scale Decoupling (BSD) module, which exploits Salience Feature Extraction (SFE) and Salience-Guided Suppression (SGS) units to adaptively extract potential features and suppress cumbersome features at other scales in a bidirectional pattern to yield different scale clues. Besides, we design the Label-supervised Semantic Decoupling (LSD) module by leveraging the category semantic labels as prior knowledge to supervise images and texts probing significant semantic-related information. Finally, we design a Semantic-guided Triple Loss (STL), which adaptively generates a constant to adjust the loss function to improve the probability of matching the same semantic image and text and shorten the convergence time of the retrieval model. Our proposed SSJDN outperforms state-of-the-art approaches in numerical experiments conducted on four benchmark remote sensing datasets.

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