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김호수,김동관,원태호,전건우 한국공간구조학회 2019 한국공간구조학회지 Vol.19 No.3
The stone pagoda continued to be damaged by weathering and corrosion over time, and natural disasters such as earthquake are accelerating the destruction of cultural properties. Stone pagoda has discontinuous structure behavior and is very vulnerable to the seismic load acting in lateral direction. It is necessary to analyze various design variables as the contact surface characteristics play an important role in the dynamic behavior of stone pagodas. For this purpose, contact surface characteristics of stone pagoda can be classified according to surface roughness and filler type, and representative model is selected and structural modeling and analysis are performed using the discrete element method. Also, the seismic load according to the repetition period is calculated and the dynamic analysis is performed considering the discontinuous characteristics of the stone pagoda. Finally, the seismic behavior characteristics can be analyzed by the evaluation of stresses, displacements and structural safety.
ffmpeg와 YOLO를 이용한 동영상 내 객체 탐지 자동화
김지민(Kim Ji Min),원태호(Won Tae-ho),심정용(Sim Jeong Yong),윤기범(Yoon Ki Beom),주종화(Jong Wha J. Joo),성완용(Sung Wonyong) 한국정보통신학회 2021 한국정보통신학회 종합학술대회 논문집 Vol.25 No.2
본 논문에서는 동영상에서 일련의 과정을 거쳐 얻었던 학습데이터를 보다 간편하고 빠른 속도로 획득하는 방법을 제안한다. 음성과 영상 스트림을 처리하는 ffmpeg을 이용해 영상을 프레임화하고, 딥 러닝 기반의 YOLO 알고리즘을 사용하여 객체를 검출한다.