Disaster Image Reference for Consistent Building Damage Assessment
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Solution Overview
Problem
Existing damage determination systems for disaster-stricken buildings face challenges such as ambiguity in determination criteria, leading to prolonged investigations, increased costs, and high fluctuation in damage assessment results, which affects the convincing feeling of residents and increases the burden on local governments.
Innovation Solution
A damage determination information system comprising a server device and terminal apparatus that manages and displays disaster images associated with damage determination results, allowing investigators to confirm and settle damage assessments using provisional results with reference to past images, reducing the need for secondary investigations and improving the convincing feeling of residents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If damage determination is conducted using subjective judgment by investigators, then flexibility in assessment is maintained, but determination precision and reliability deteriorate due to ambiguity in criteria
Solution Approach 1:
The system performs preliminary extraction of damage determination factors from images before the investigator makes the final determination. The image processing unit automatically identifies and extracts relevant damage features, pre-processing the visual information to reduce the investigator's workload and eliminate subjective variations in initial assessment.
Solution Approach 2:
The system creates objective copies of damage information by converting visual damage data into structured determination factors through image processing. These processed factors serve as standardized references that replace subjective human judgment, ensuring consistent and reliable damage assessment across different investigators.
2Measurement precision
If detailed investigation procedures are implemented to ensure accurate damage determination, then measurement precision improves, but investigation time increases
Solution Approach 1:
The system replaces the mechanical process of manual detailed inspection with automated image processing technology. The image processing unit rapidly analyzes damage images and extracts determination factors, achieving high-precision assessment without the time-consuming manual examination that would otherwise be required.
Solution Approach 2:
The system introduces an intermediary image processing layer between the raw damage images and the final determination. This intermediary automatically extracts and structures relevant damage factors, serving as a bridge that delivers precise determination information quickly without requiring investigators to perform time-consuming detailed analyses.
3Reliability
If multiple investigators conduct independent determinations, then reliability through cross-verification improves, but productivity deteriorates due to prolonged investigation time
Solution Approach 1:
The system enables self-service damage determination by providing investigators with automatically extracted determination factors and reference information. Investigators can independently make accurate determinations using the processed data without requiring extensive coordination or cross-verification with other investigators, thereby maintaining reliability while improving productivity.
4Measurement precision
If comprehensive damage assessment criteria are provided to investigators, then measurement precision improves, but ease of operation deteriorates due to complexity in grasping all items and criteria
Solution Approach 1:
The system automatically extracts only the relevant determination factors from comprehensive damage assessment criteria based on the specific damage images provided. Instead of requiring investigators to grasp all possible criteria, the system identifies and extracts only those factors applicable to the current case, simplifying the investigator's task while maintaining comprehensive and precise assessment.
Data Source
AI summary
Provided are a damage determination information system, a server device, a terminal apparatus, and a program that can realize at least one of the improvement of the convincing feeling for a damage determination result, the reduction of an investigation cost, or the decrease of fluctuation of the damage determination results by a plurality of investigators. A provisional damage determination result is acquired, and a server device extracts a plurality of disaster images related to the provisional damage determination result from a disaster image database (15) and displays the extracted disaster image on a display device of a terminal apparatus. Input of an instruction for settling the damage determination result is received from the terminal apparatus that displays the disaster image, and the settled damage determination result is registered in a damage investigation result database (17).