Exploring Fine-Grained Image-Text Alignment for Referring Remote Sensing Image Segmentation

• URL: http://arxiv.org/abs/2409.13637v1
• Date: Fri, 20 Sep 2024 16:45:32 GMT
• Title: Exploring Fine-Grained Image-Text Alignment for Referring Remote Sensing Image Segmentation
• Authors: Sen Lei, Xinyu Xiao, Heng-Chao Li, Zhenwei Shi, Qing Zhu,
• Abstract summary: We propose a new referring remote sensing image segmentation method, FIANet, that fully exploits the visual and linguistic representations. The proposed fine-grained image-text alignment module (FIAM) would simultaneously leverage the features of the input image and the corresponding texts. We evaluate the effectiveness of the proposed methods on two public referring remote sensing datasets including RefSegRS and RRSIS-D.
• Score: 27.95875467352853
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Given a language expression, referring remote sensing image segmentation (RRSIS) aims to identify the ground objects and assign pixel-wise labels within the imagery. The one of key challenges for this task is to capture discriminative multi-modal features via text-image alignment. However, the existing RRSIS methods use one vanilla and coarse alignment, where the language expression is directly extracted to be fused with the visual features. In this paper, we argue that a "fine-grained image-text alignment" can improve the extraction of multi-modal information. To this point, we here proposed a new referring remote sensing image segmentation method, termed FIANet, that fully exploits the visual and linguistic representations. Specifically, the original referring expression is regarded as context text, which is further decoupled into ground object text and spatial position text. The proposed fine-grained image-text alignment module (FIAM) would simultaneously leverage the features of the input image and the corresponding texts and learn better discriminative multi-modal representation. Meanwhile, to handle the various scales of ground objects in remote sensing, we introduce a Text-aware Multi-scale Enhancement Module (TMEM) to adaptively perform cross-scale fusion and intersections. We evaluate the effectiveness of the proposed methods on two public referring remote sensing datasets including RefSegRS and RRSIS-D, and our method obtains superior performance over several state-of-the-art methods. The code will be publicly available.

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