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Automated damage detection of buildings from aerial television images of the 2001 Gujarat, India earthquake

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4 Author(s)
H. Mitomi ; Earthquake Disaster Mitigation Res. Center, Hyogo, Japan ; J. Saita ; M. Matsuoka ; F. Yamazaki

A severe earthquake, which heavily affected Gujarat Province in western India, occurred on 26 January 2001. Using aerial television images taken with a digital video camera from a light plane in the reconnaissance survey carried out by one of the authors, automated detection of areas with building damage, based on both the multi level slice method and the maximum likelihood classifier, was attempted. Areas of building damage were defined based on six image characteristics derived from color indices and edge elements. The resulting estimated distributions of areas of building damage were in good agreement with the actual situation, although we found that it was difficult to use the same threshold values and training data for all the images because of differences in some factors, such as the influence of sunshine and built environment in the two methods

Published in:

Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International  (Volume:1 )

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