文章摘要
欧立奇,王红英,罗小东,李盼,刘瀚.利用遥感图像数据基于模板匹配的震毁灾损研究[J].地震工程学报,2019,41(6):1659-1664. OU Liqi,WANG Hongying,LUO Xiaodong,LI Pan,LIU Han.Earthquake Damage Loss Analysis Based on Template Matching and Remote-sensing Image Data[J].China Earthquake Engineering Journal,2019,41(6):1659-1664.
利用遥感图像数据基于模板匹配的震毁灾损研究
Earthquake Damage Loss Analysis Based on Template Matching and Remote-sensing Image Data
投稿时间:2018-10-13  
DOI:10.3969/j.issn.1000-0844.2019.06.1659
中文关键词: 遥感图像;地震灾害;损失评估
英文关键词: remote sensing image;earthquake disaster;loss assessment
基金项目:国家自然科学基金项目(61875226)
作者单位
欧立奇 西京学院 商贸技术系, 陕西 西安 710123 
王红英 西安文理学院 陕西省表面工程与再制造重点实验室, 陕西 西安 710065 
罗小东 西安石油大学 理学院, 陕西 西安 710065 
李盼 西京学院 商贸技术系, 陕西 西安 710123 
刘瀚 西京学院 商贸技术系, 陕西 西安 710123 
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中文摘要:
      有效评估震灾损失可及时、可靠地了解地震灾区实时情况,提高破坏性地震下人们的反应能力,满足应急指挥需求。为提高震灾损失评估精度,对所获取遥感图像进行滤波及局部灰度调整处理,提出基于遥感图像模板匹配的震毁灾损研究。首先获取震区的遥感影像,考虑所获取图像与模板图像的偏移状况对图像进行模板匹配,提取与模板匹配后特征区域的特征值,获取空间网格点上的成像值,依据成像点自动评估震灾损失,其中能量最大的点即为震害受损最严重的位置,对图像所有内廓像素点结果进行遍历,确定提取地震灾区整体的受损特征结果。仿真实验发现,所提方法可提取出震灾损失状况,初步为地震灾害损失评估提供参考借鉴,但仍需要进一步研究,以提高方法的普遍适用性。
英文摘要:
      To be effective, the assessment of earthquake disaster loss must be timely and reliable with respect to the real-time situation of the earthquake disaster area, improve the reaction capacity of the victims of destructive earthquakes, and meet the requirements of the emergency command. To improve the accuracy of assessments of earthquake disaster loss, remote-sensing images are processed by filtering and local gray-level adjustment. In this paper, we propose the identification of earthquake damage loss based on the template matching of remote-sensing images. To do so, remote-sensing images of the earthquake zone are acquired, then template matching is conducted with respect to the deviations between the acquired and template images. The eigenvalue of the feature region is extracted, and the imaging values of the spatial grid points are obtained. In this way, the earthquake disaster loss can be automatically evaluated according to the referenced imaging points, whereby the points with maximum energy indicate where the earthquake damage loss is greatest. Using this approach, the damage characteristics of the whole earthquake disaster area can be determined and extracted. The simulation experiment results show that the proposed method can extract the earthquake disaster loss and provide a preliminary reference for its assessment, although further study is needed to improve the general applicability of the proposed method.
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