Rapid and Accurate Detection of Building Damage Investigation Using Automatic Method to Calculate Roof Damage Rate

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Description

<jats:p>In the event of a natural disaster, local Japanese governments investigate the level of damage of the buildings and issue damage certificates to the victims. The damage certificate is used to determine the content of the support provided to the victims; hence, they must be issued rapidly and accurately. However, in the past, the investigation of damage was time-consuming, thus delaying the support provided to the victims. Additionally, while investigating the roof of the damaged building, it was difficult for the investigators to look at the entire roof and calculate the damage rate accurately. Therefore, we have developed an automatic method to calculate the damage rate of a roof using image recognition from aerial photos so that building damage investigation can be more accurate and rapid. We requested the staff in the disaster management division to evaluate the estimation results of this model and confirm its effectiveness. As a result, 80 % of the roof data obtained from this method was equal to or more accurate than the investigator checking from the ground. Additionally, we have developed an efficient flow for building damage investigation using the proposed system. In the future, we aim to investigate the system usage to ensure responsibility in data estimation.</jats:p>

Journal

  • IDRiM Journal

    IDRiM Journal 12 (1), 2022-05-24

    Journal of Integrated Disaster Risk Management

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