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
复制标题
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
复制
发表时间:
2007
影响因子:
3.4
通讯作者:
Fumio Yamazaki
中科院分区:
文献类型:
--
作者:
T. Vu;Masashi Matsuoka;Fumio Yamazaki
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.
影响因子:
5
作者:
T. Vu;M. Matsuoka;F. Yamazaki
通讯作者:
T. Vu;M. Matsuoka;F. Yamazaki
影响因子:
64.8
作者:
MASSONNET, D;ROSSI, M;RABAUTE, T
通讯作者:
RABAUTE, T
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