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arXiv 2606.10329cs.CVcs.AI

地震中的建筑变化检测:一种多尺度交互网络和一个变化检测数据集

Building Change Detection in Earthquake: A Multi-Scale Interaction Network and A Change Detection Dataset

School of Control Science and Engineering, Shandong University(控制科学与工程学院,山东大学)

Yunlong Liu, Zekai Zhang

AI总结:

针对地震后短期成像间隔导致的变化检测难题,构建了土耳其地震变化检测数据集(TUE-CD),并提出多尺度特征交互网络(MSI-Net),通过联合交叉注意力和多尺度偏移校准模块,有效缓解侧视问题,提升变化检测精度。

摘要:

作为最具破坏性的自然灾害之一,近年来地震袭击了世界许多国家,造成了严重的经济损失。变化检测(CD)可应用于震后损伤评估,因为它能从多时相遥感图像中推断出被破坏的变化区域。此外,短成像间隔的变化检测将更好地满足地震后紧急救援的需求。然而,由于缺乏短成像间隔的数据集,当前基于深度神经网络的方法的能力受到限制。为了满足灾后即时救援的需求,我们创建了一个变化检测数据集——土耳其地震变化检测数据集(TUE-CD),用于评估地震后短期内的建筑损坏情况。由于后事件图像的采集间隔短,不同时相图像的成像角度不同,导致了一些侧视问题。为了应对这些挑战,我们提出了一种多尺度特征交互网络(MSI-Net),用于双时相特征之间的高效交互,并减轻侧视问题的影响。具体来说,所提出的MSI-Net由联合交叉注意力(JCA)模块、多尺度偏移校准(MOC)模块和特征集成(FeI)模块组成。JCA模块统一了通道交叉注意力和空间联合注意力,以实现充分的特征交互。MOC模块进一步估计偏移量,以将双时相图像与多尺度特征对齐。最后,通过FeI模块融合校准后的特征和多尺度特征,用于变化区域的预测。在WHU-CD、CLCD和构建的TUE-CD数据集上的实验表明,所提出的MSI-Net比考虑的最先进的变化检测方法提供了更好的结果。

英文摘要:

As one of the most destructive natural disasters, earthquakes have struck many countries around the world in recent years, causing serious economic losses. Change detection (CD) can be applied to post-earthquake damage assessment as it can infer destroyed change regions from multi-temporal remote sensing images. Furthermore, the CD with short imaging interval will better satisfy the needs of the emergency rescues after earthquakes. However, the capability of current methods built on deep neural networks is limited because the dataset with short imaging interval is absent. To meet post-disaster immediate relief, we create a CD dataset, Turkey earthquake CD dataset (TUE-CD), for the evaluation of building damage in the short term after an earthquake. Because of the short acquisition interval of the post-event images, the imaging angle is different for different temporal images, which leads to some side-looking problems. To deal with these challenges, we present a multi-scale feature interaction network (MSI-Net) for efficient interaction between bi-temporal features, as well as mitigating the effect of side-looking problems. Specifically, the proposed MSI-Net consists of joint cross-attention (JCA) modules, multi-scale offset calibration (MOC) modules, and feature integration (FeI) modules. The JCA module unifies channel cross-attention and spatial joint attention for sufficient feature interaction. The MOC module further estimates the offsets to align the bi-temporal image with the multi-scale features. Finally, calibrated features and multi-scale features are fused by FeI modules for the prediction of changed areas. Experiments on the WHU-CD, CLCD, and the constructed TUE-CD dataset indicate that the proposed MSI-Net provides better results than considered state-of-the-art CD methods.

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