공간영역에서의 이미지 향상을 이용한 액체저장탱크의 수위응답 측정

다국어 초록 (Multilingual Abstract)

To analyze the sloshing of fluid in a shaking table test, the water level response is generally measured by installing a water level gauge on the ceiling. However, depending on the measurement method used, there are limited measurement points and difficulties in measuring. In addition, it can cause severe noise. Therefore, a method for the simple and economical measurement of the water level response in a liquid storage tank is necessary. In this study, a method for measuring the water level response in a liquid storage tank using digital image processing was suggested, and a digital camcorder was used as a sensor for measuring the water level response, considering ease of use and economic feasibility. Image enhancement in the spatial domain was used to reduce noise in the fluid induced by the reflection of light and to sharpen the structure installed at the liquid storage tank. Therefore, a shaking table test was performed to validate the method of measuring the water level response in a liquid storage tank using digital image processing, and the result was compared to the result of measuring the response using a water level gauge.