物探化探计算技术2025，Vol.47Issue(2)：300-310,11.DOI:10.12474/wthtjs.20240130-0003
基于变化检测的北川羌族自治县震后重建监测与动态分析
Post-earthquake reconstruction monitoring and dynamic analysis of Beichuan Qiang Autonomous County based on change detection
摘要
Abstract
The 2008 Wenchuan earthquake is one of the most destructive and widespread earthquake event in China.Beichuan Qiang Autonomous County continues to attract scholarly attention due to its off-site reconstruction initiatives,even 15 years after the disaster.However,quantitative research approaches are scarce for such reconstruction efforts.Deep learning-based techniques offer enhanced accuracy and objectivity compared to conventional change detection methodologies.This study aims to construct a multi-temporal change detection dataset using the relocated Beichuan Qiang Autonomous County as a case study.Additionally,a framework for dynamic change-based building detection will be proposed.The performance of various models will be evaluated on the building dataset of Beichuan County,confirming the superior accuracy of the BIT model.Then,the reconstruction progress from 2008 to 2016 will be predicted and visualized.Finally,this report presents a visualization and quantitative analysis of the recovery and development of Beichuan County from 2008 to 2020.The results indicate that the BIT model achieved the highest accuracy on the Beichuan County building dataset,with Mean Intersection over Union(MIoU)of 83.40%.Furthermore,the statistical results indicate that the area of reconstructed buildings after disasters increased from 8.44 km2 in 2008-2016 to 10.59 km2 in 2020.The suggested fast multi-temporal phase extraction method for post-earthquake urban reconstruction can provide a scientific basis for local government to carry out urban planning.关键词
汶川地震/变化检测/震后重建/空间分析/北川羌族自治县Key words
wenchuan earthquake/change detection/post-earthquake reconstruction/spatial analysis/beichuan qiang autonomous county分类
天文与地球科学引用本文复制引用
雷雨竺,刘瑞,曹礼刚,杨皓麟..基于变化检测的北川羌族自治县震后重建监测与动态分析[J].物探化探计算技术,2025,47(2):300-310,11.基金项目
四川省高等学校人文社会科学重点研究基地项目(RWDL2022-YB001) （RWDL2022-YB001）
地质灾害防治与地质环境保护国家重点实验室项目(SKLGP2022K026) （SKLGP2022K026）
