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Multiscale Refinement Network for Water-Body Segmentation in High-Resolution Satellite Imagery

机译:高分辨率卫星图像中水体细分的多尺度细化网络

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摘要

Water-body segmentation in high-resolution satellite imagery is challenging because of the significant variations in the appearance, size, and shape of water bodies. In this letter, a novel multiscale refinement network (MSR-Net) is proposed for water-body segmentation. Similar to most learning-based methods, the MSR-Net resorts to the multiscale information for segmentation, but it improves existing networks in two ways: First, it uses the multiscale information in a new perspective. Instead of the traditional one-off manner that concatenates features and conducts segmentation on one uniform scale, the MSR-Net adopts a new multiscale refinement scheme that makes full use of the multiscale features for more accurate water-body segmentation. In addition, a novel erasing-attention module is designed for an effective feature embedding during the refinement scheme. Experiments on the Gaofen Image Data Set and the DeepGlobe Data Set demonstrate the superiority of MSR-Net when compared with the other state-of-the-art semantic segmentation methods, including U-Net, SegNet, DeepLabv3+, and ExFuse.
机译:高分辨率卫星图像中的水体分割是挑战,因为水体的外观,尺寸和形状的显着变化。在这封信中,提出了一种用于水体细分的新型多尺度细化网络(MSR-Net)。类似于基于大多数基于学习的方法,MSR-Net Resorts到多尺度信息进行分割,但它以两种方式改进了现有网络:首先,它以新的视角使用多尺度信息。代替传统的一次性方式,它通过一种统一量级连接特征并进行分割,MSR-Net采用新的多尺度细化方案,该方案充分利用多尺度特征,以实现更准确的水体分割。此外,新颖的擦除密度模块设计用于在细化方案期间嵌入有效的特征。与其他最先进的语义分割方法相比,GeoFgen图像数据集和DeepGlobe数据集的实验证明了MSR-Net的优越性,包括U-Net,Segnet,Deeplabv3 +和exfuse。

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