옵티컬 플로우를 이용한 영상처리 기반 진동 계측 및 검증
Vibration Measurements and Verification Based on Image Processing Using Optical Flow
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초록
Conventional vibration-measurement methods used for vibration testing typically employ accelerometers, which offer the significantadvantage of accurately measuring vibrations at specific positions. However, they can only measure one point at a time as simultaneously measurements of multiple points can be economically disadvantageous. This study aims to overcome these limitations by analyzing the vibration outputs of accelerometers attached to a product and those obtained through image processing. The analysis involvedassessing the measurement uncertainties and verifying the low-frequency vibration testing according to KS standards. The results validated and confirmed the reliability of the proposed camera-based image-processing vibration-measurement method, which exhibiteda notable vibration-detection performance and measurement errors within 5% compared to accelerometers for low-frequency vibrations. This method has the potential for application across various vibration-response and durability evaluations. Future research should focuson expanding it to high-frequency vibration testing using high-speed cameras and further enhancing image-based vibration-analysistechniques.
Abstract
Conventional vibration-measurement methods used for vibration testing typically employ accelerometers, which offer the significantadvantage of accurately measuring vibrations at specific positions. However, they can only measure one point at a time as simultaneously measurements of multiple points can be economically disadvantageous. This study aims to overcome these limitations by analyzing the vibration outputs of accelerometers attached to a product and those obtained through image processing. The analysis involvedassessing the measurement uncertainties and verifying the low-frequency vibration testing according to KS standards. The results validated and confirmed the reliability of the proposed camera-based image-processing vibration-measurement method, which exhibiteda notable vibration-detection performance and measurement errors within 5% compared to accelerometers for low-frequency vibrations. This method has the potential for application across various vibration-response and durability evaluations. Future research should focuson expanding it to high-frequency vibration testing using high-speed cameras and further enhancing image-based vibration-analysistechniques.
참고문헌 (17)
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