SEISAN KENKYU
Online ISSN : 1881-2058
Print ISSN : 0037-105X
ISSN-L : 0037-105X
Research Flash
Detection of liquefied sand boil using high resolution satellite images
Shiro OCHIJunichi KOSEKIYukika MIYASHITAHaruo SAWADA
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JOURNAL FREE ACCESS

2012 Volume 64 Issue 4 Pages 451-454

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Abstract
In the Tohoku Earthquake Disaster 2011, the tremendous efforts were required to understand the liquification damage in the vast area. For the future, the automated and standardized approach to detect the liquification damage is expected. In this study, several approaches to detect the sand boil caused by liquification were examined. The high resolution satellite images such as World-View-2 which were taken before and after the disaster were used. The image was classified based on both the pixels and the objects, using Clustering, Decision-Tree and Maximum Likelihood methods. The result showed that Maximum Likelihood method based on the object oriented image was most effective to detect the sand boil.[This abstract is not included in the PDF]
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© 2012 Institute of Industrial Science The University of Tokyo
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