CCTV 영상처리를 이용한 터널 내 사고감지 알고리즘
An In-Tunnel Traffic Accident Detection Algorithm using CCTV Image Processing
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참고문헌
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초록
현존하는 자동 사고감지 알고리즘의 대부분은 개방도로 혹은 터널 내에서 사고 발생 시 이것을 사고로 감지하지 못하고 혼잡으로 감지하는 경우가 많다는 문제점을 가지고 있다. 본 논문에서는 개방도로에서의 사고감지 알고리즘을 기반으로 터널 내에서의 사고감지 알고리즘을 개선하여 감지율을 높일 수 있는 알고리즘을 제안하였다. 개선된 알고리즘은 가우시안 혼합모델을 이용하여 픽셀의 변화량을 판단하여 터널 내 사고로 인한 정지차량을 우선 감지한 후 도로를 블록화하여 블록 간 점유율의 편차를 분석하여 최종 판단을 한다. 실제 사고영상에 알고리즘을 적용한 실험에서 모두 오류 없이 검지하였음을 확인하였다.
Abstract
Almost of current Automatic Incident Detection(AID) algorithms involve the vulnerability that detects the traffic accident in open road or in tunnel as the traffic jam not as the traffic accident. This paper proposes the improved accident detection algorithm to enhance the detection probability based on accident detection algorithms applied in open roads. The improved accident detection algorithm provides the preliminary judgment of potential accident by detecting the stopped object by Gaussian Mixture Model. Afterwards, it measures the detection area is divided into blocks so that the occupancy rate can be determined for each block. All experimental results of applying the new algorithm on a real incident was detected image without error.
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