Quantitative Evaluation of Damaged Areas of a Big Earthquake Detected by Image Processing and GIS Information
نویسندگان
چکیده
data mapped on GIs, and evaluate the performance of image processing algorithm. The real burnt areas and the real In this report we compare the damaged areas by an earthtotally damaged building areas are shown in Figure 2 and quake detected by using image processing from aerial Figure 3, respectively. These data show the damage as arphotographs with the actual damage data, to evaluate the eas, not as individual buildings. performance of image processing algorithm used. For comparison we utilized a GIs (Geographic Information System), which can manage and analyze spatial information systematically. The algorithm to be evaluated is the one using edge information to identify the damaged areas by an earthquake, proposed by the authors. As a result, a significant portion of burnt areas can be detected by the algorithm, thresholding the detected connected regions by their sizes. A possibility of detecting areas of totally damaged houses isalso discussed. -
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