Object-Oriented Image Understanding and Post-Earthquake Damage Assessment for the 2003 Bam, Iran, Earthquake

被引：44
|
作者：
Gusella, Luca [1 ]
Adams, Beverley J. [2 ]
Bitelli, Gabriele [1 ]
Huyck, Charles K. [2 ]
Mognol, Alessandro [1 ]
机构：
[1] Univ Bologna, DISTART, Viale Risorgimento 2, I-40136 Bologna, Italy
[2] ImageCat Inc, Long Beach, CA 90802 USA
来源：
EARTHQUAKE SPECTRA | 2005年 / 21卷
关键词：
D O I：
10.1193/1.2098629
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper presents a methodology for quantifying the number of buildings that collapsed following the Bam earthquake. The approach is object rather than pixel-oriented, commencing with the inventory of buildings as objects in high-resolution QuickBird satellite imagery captured before the event. The number of collapsed structures is computed based on the unique statistical characteristics of these objects/buildings within the "after" scene. A total of 18,872 structures were identified within Bam, of which the results suggest that 34% collapsed-a total of 6,473. Preliminary assessments indicate an overall accuracy for the damage classification of 70.5%.
引用
收藏
页码：S225 / S238
页数：14
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