arXiv:2604.02627cs.CVcs.AI2026-04被引 1

用视觉大模型快速精准映射地震后建筑损毁,提升救灾效率。

Smart Transfer: Leveraging Vision Foundation Model for Rapid Building Damage Mapping with Post-Earthquake VHR Imagery

论文配图:Smart Transfer: Leveraging Vision Foundation Model for Rapid Building Damage Mapping with Post-Earthquake VHR Imagery
图 1 · 摘自论文原文
  • 基于视觉大模型,设计像素聚类与距离惩罚三元组策略。
  • 在2023年土叙地震数据上实现跨区域迁移,准确率超基准方法。
  • 适合灾后应急响应、地理信息智能分析人员使用。

气候变化加剧下,自然灾害频发且更严重,灾后72小时黄金救援期的快速响应成为关键人道需求。传统损毁调查难以适应不同城市形态与新灾情,常需耗时的手动标注。本文提出Smart Transfer框架,利用先进的视觉基础模型(Vision Foundation Models)实现震后高分辨率遥感影像中的建筑损毁快速制图。设计两种新型迁移策略:像素级聚类(PC),确保原型级全局特征对齐;距离惩罚三元组(DPT),通过为语义不一致但空间相邻的图像块施加更强惩罚,融合局部空间自相关模式。在2023年土叙地震数据集上的多场景跨区域迁移实验(包括留一域外和特定源域组合)中表现优异。该框架具备可扩展、自动化特点,显著加速建筑损毁评估,助力快速灾后响应,为气候脆弱地区提升抗灾韧性提供新可能。代码与数据已开源:https://github.com/ai4city-hkust/SmartTransfer。

原文摘要 · Abstract (English)

Living in a changing climate, human society now faces more frequent and severe natural disasters than ever before. As a consequence, rapid disaster response during the "Golden 72 Hours" of search and rescue becomes a vital humanitarian necessity and community concern. However, traditional disaster damage surveys routinely fail to generalize across distinct urban morphologies and new disaster events. Effective damage mapping typically requires exhaustive and time-consuming manual data annotation. To address this issue, we introduce Smart Transfer, a novel Geospatial Artificial Intelligence (GeoAI) framework, leveraging state-of-the-art vision Foundation Models (FMs) for rapid building damage mapping with post-earthquake Very High Resolution (VHR) imagery. Specifically, we design two novel model transfer strategies: first, Pixel-wise Clustering (PC), ensuring robust prototype-level global feature alignment; second, a Distance-Penalized Triplet (DPT), integrating patch-level spatial autocorrelation patterns by assigning stronger penalties to semantically inconsistent yet spatially adjacent patches. Extensive experiments and ablations from the recent 2023 Turkiye-Syria earthquake show promising performance in multiple cross-region transfer settings, namely Leave One Domain Out (LODO) and Specific Source Domain Combination (SSDC). Moreover, Smart Transfer provides a scalable, automated GeoAI solution to accelerate building damage mapping and support rapid disaster response, offering new opportunities to enhance disaster resilience in climate-vulnerable regions and communities. The data and code are publicly available at https://github.com/ai4city-hkust/SmartTransfer.

灾后响应视觉大模型遥感制图地理人工智能

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