KIISE Transactions on Computing Practices (정보과학회 컴퓨팅의 실제 논문지)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
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Real-Time Side-Rear Vehicle Detection Algorithm for Blind Spot Warning Systems

사각지역경보시스템을 위한 실시간 측후방 차량검출 알고리즘

  • 강현우 (한국전자통신연구원 스마트비전연구실) ;
  • 백장운 (한국전자통신연구원 스마트비전연구실) ;
  • 한병길 (한국전자통신연구원 스마트비전연구실) ;
  • 정윤수 (한국전자통신연구원 스마트비전연구실)
  • Received : 2017.01.03
  • Accepted : 2017.05.16
  • Published : 2017.07.15
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Abstract

This paper proposes a real-time side-rear vehicle detection algorithm that detects vehicles quickly and accurately in blind spot areas when driving. The proposed algorithm uses a cascade classifier created by AdaBoost Learning using the MCT (modified census transformation) feature vector. Using this classifier, the smaller the detection window, the faster the processing speed of the MCT classifier, and the larger the detection window, the greater the accuracy of the MCT classifier. By considering these characteristics, the proposed algorithm uses two classifiers with different detection window sizes. The first classifier quickly generates candidates with a small detection window. The second classifier accurately verifies the generated candidates with a large detection window. Furthermore, the vehicle classifier and the wheel classifier are simultaneously used to effectively detect a vehicle entering the blind spot area, along with an adjacent vehicle in the blind spot area.

본 논문에서는 주행 중 사각지역내의 차량을 빠르고 정확하게 실시간으로 검출하는 측후방 차량 검출 알고리즘을 제안한다. 제안 알고리즘은 실시간 처리를 위해 MCT(Modified Census Transformation) 특징벡터를 기반으로 에이다부스트 학습을 통해 생성되는 캐스케이드 분류기를 사용한다. MCT 분류기는 검출윈도우가 작을수록 처리속도가 빠르고, 검출윈도우가 클수록 정확도가 증가한다. 제안 알고리즘은 이러한 특징을 이용하여 검출윈도우가 작은 분류기로 차량후보를 빠르게 생성한 후 보다 큰 사이즈의 검출윈도우를 가지는 분류기로 생성된 차량후보에 대해 정확하게 차량인지 검증한다. 또한, 차량분류기와 바퀴분류기를 동시에 사용하여 사각지역내로 진입하는 차량과 사각지역내의 인접차량을 효과적으로 검출한다.

Keywords

Acknowledgement

Grant : 상황인지 스마트카 퓨전플랫폼 개발 및 지역 부품업체 지원사업

Supported by : 한국전자통신연구원

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