HASTE: A Platform for Rapid Post-Disaster Building Damage Assessment· 灾后快速建筑损毁评估平台
When a large disaster strikes, responders need a map of which buildings are damaged within hours. The models that do well on public benchmarks assume matched before-and-after imagery and a training set drawn from similar past events, and neither is usually available for a new disaster in its first day. We present HASTE (High-speed Assessment and Satellite Tracking for Emergencies), a no-code web platform that lets analysts who are not machine learning engineers produce per-building damage maps from post-disaster satellite imagery. HASTE implements two methods that share one interface. The first requires the user to label polygons over the post-disaster scene, trains a small semantic segmentation model on that single scene, runs it over the whole image, and joins the per-pixel output to existing building footprints. The second embeds every footprint with a pretrained vision model, requires the user to label a handful of buildings, and fits a logistic regression in the browser that scores the rest of the scene in seconds. We describe the platform, both methods, and the engineering that supports them. We also report preliminary experiments on xBD showing that foundation-model embeddings pooled over footprints separate damaged from intact buildings using post-disaster imagery alone, matching a fully supervised ResNet-50 baseline with a twentieth of its labels. HASTE and its predecessors have supported more than thirty real-world disaster responses since 2023, spanning earthquakes, hurricanes, cyclones, floods, wildfires, and tornadoes, delivering results to humanitarian partners within hours to days of imagery becoming available. We close with the directions we think are most promising, including vision-language assessment, active learning, and damage models for roads and other infrastructure. HASTE is open source at https://github.com/microsoft/haste.
灾后快速建筑损毁评估平台,无需编码
- 核心方法
- HASTE 平台实施两种方法:1) 用户标注灾后影像,训练小规模语义分割模型;2) 使用预训练视觉模型嵌入建筑足迹,用户标注少量样本,浏览器中拟合逻辑回归模型
- 适合谁读
- 研究者、工程师、人道主义援助工作者
- 要解决的问题
- 灾后响应者需要在数小时内获取受损建筑的地图,但通常缺乏匹配的前后影像和足够的训练数据
- 关键实验
- 在 xBD 数据集上的初步实验表明,预训练模型嵌入建筑足迹可以有效区分受损和完好的建筑
- 主要贡献
- 在仅有灾后影像的情况下,使用预训练模型嵌入的方法达到与全监督 ResNet-50 基线相当的结果,所需的标签量仅为后者的二十分之一
- 意义与局限
- HASTE 支持了超过三十次真实的灾后响应,加快了损毁评估速度,对人道主义援助有重要作用,但未来还需进一步探索和改进