5. CONCLUSION
In this study, a semi-automated method was developed to estimate
damage ratios of washed away buildings in the tsunami
affected areas using pre- and post-event TerraSAR-X data.
The main improvements from previous studies are that this
method does not need to use building footprint data to estimate
building damage, and the transferability was verified on
the other test site. Comparing the truth data and estimated results,
almost good consistency seems to be achieved. On the
other hand, underestimating real damages could be found in
some parts, and these should be improved in future works.