Dual‐scale approach for detection of tsunami‐affected areas using optical satellite images

Dual‐scale approach for detection of tsunami‐affected areas using optical satellite images
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使用光学卫星图像检测海啸受影响地区的双尺度方法

DOI:
10.1080/01431160601091811
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发表时间:
2007
影响因子:
3.4
通讯作者:
Fumio Yamazaki
Fumio Yamazaki
中科院分区:
工程技术3区
文献类型:
--
作者:
T. Vu;Masashi Matsuoka;Fumio Yamazaki

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由于各种不同空间分辨率、光谱分辨率等的传感器已经投入使用,因此已经准备好了一个非常庞大的图像数据库。在快速损伤评估中,如何检索相关信息是一个关键问题。本研究开发了一个框架,将中分辨率(Landsat或ASTER)和高分辨率(QuickBird或IKONOS)卫星图像和数字高程数据整合到海啸受灾地区的测绘中。处理过程从宏观尺度(中等空间分辨率数据)向上流动到微观尺度(高空间分辨率数据)。在这种金字塔式搜索中,只获取和处理必要的数据,并缩小集中的地理范围。还开发了合适的基于像素和基于对象的处理方法。使用开发的处理流程大大降低了获取成本和处理时间。在2004年印度洋海啸中受到严重影响的泰国班加省和普吉省选定的试验场用于演示该框架的性能。进一步的研究包括处理系统的实施和将这一理念推广到其他自然灾害。
As various sensors with different spatial resolutions, spectral resolutions, etc., have been in operation, an extremely large image database is ready. How to retrieve the relevant information is a critical problem in the context of quick damage assessment. This study develops a framework to integrate medium resolution (Landsat or ASTER) and high‐resolution (QuickBird or IKONOS) satellite images and digital elevation data in mapping tsunami‐affected areas. The processing flows upwards from macro‐scale (medium spatial resolution data) to micro‐scale (high spatial resolution data). Across this pyramidal searching, only necessary data is acquired, processed and the focused geographical extent is narrowed. Suitable pixel‐based and object‐based processing methods are also developed. Using the developed processing flow drastically reduces acquisition cost and processing time. The selected test sites in Phangnga and Phuket Provinces, Thailand, which were severely affected by the 2004 Indian Ocean tsunami, are used to demonstrate the performance of the framework. Further studies include the implementation of the processing system and the extension of the idea to other natural hazards.
DOI: 10.1193/1.2101127
发表时间: 2005-12
期刊: Earthquake Spectra
影响因子: 5
作者:
T. Vu;M. Matsuoka;F. Yamazaki
通讯作者: T. Vu;M. Matsuoka;F. Yamazaki
DOI: 10.1038/364138a0
发表时间: 1993-07-08
期刊: NATURE
影响因子: 64.8
作者:
MASSONNET, D;ROSSI, M;RABAUTE, T
通讯作者: RABAUTE, T
使用 QuickBird 图像检测 2003 年伊朗巴姆地震的建筑损坏情况
DOI: --
发表时间: 2004
期刊: Proc.25th Asian Conference on Remote Sensing
影响因子: --
作者:
Y.Yano;F.Yamazaki;M.Matsuoka;T.T.Vu
通讯作者: T.T.Vu