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자료유형
학술저널
저자정보
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제51권 제1호
발행연도
2019.1
수록면
155 - 162 (8page)

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To reduce the secondary damage caused by leakage accidents in plant piping systems, a constant surveillancesystem is necessary. To ensure leaks are promptly addressed, the surveillance system should beable to detect not only the leak itself, but also the location of the leak. Recently, research to develop newmethods has been conducted using cameras to detect leakage and to estimate the location of leakage. However, existing methods solely estimate whether a leak exists or not, or only provide two-dimensionalcoordinates of the leakage location. In this paper, a method using multiple cameras to detect leakage andestimate the three-dimensional coordinates of the leakage location is presented. Leakage is detected byeach camera using MADI(Moving Average Differential Image) and histogram analysis. The twodimensionalleakage location is estimated using the detected leakage area. The three-dimensionalleakage location is subsequently estimated based on the two-dimensional leakage location. To achievethis, the coordinates (x, z) for the leakage are calculated for a horizontal section (XZ plane) in themonitoring area. Then, the y-coordinate of leakage is calculated using a vertical section from eachcamera. The method proposed in this paper could accurately estimate the three-dimensional location ofa leak using multiple cameras

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