A research group consisting of Hiroyuki Miura, Associate Professor at the Graduate School of Advanced Science and Engineering, Hiroshima University, Yusuke Murata, a graduate student, Hiroyuki Wakasa, Specially Appointed Professor at the Open Innovation Business Headquarters, Hiroshima University, and Tomoyasu Takara of Aioi Nissay Dowa Insurance Co., Ltd. We have developed the world's first method for quickly estimating regional building damage caused by typhoons using remote sensing technology, such as photographs and satellite images, and insurance data held by non-life insurance companies.
According to Hiroshima University, a research group collected insurance data on detached houses damaged by Typhoon No. 2018 in September 9 in southern Osaka Prefecture and in southern Chiba Prefecture by Typhoon No. 21 in September 2019, and remote sensing images taken after the disaster. , we found that the larger the damage ratio of the building, the more blue sheets can be hung on the roof.However, it was also found that it was difficult to determine the damage to individual buildings from the images.
As a result of examining the relationship between the number of damaged buildings and the insurance payment performance of fire insurance, we found that there was a high correlation between the two.By multiplying the damage ratio estimated from the building damage ratio by the total insurance value held by the non-life insurance company, we were able to estimate the building damage amount for each area.
