한국전자통신학회논문지 (The Journal of the Korea institute of electronic communication sciences)

한국전자통신학회 (Korea Institute of Electronic Communication Science)
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Adaboost 최적 특징점을 이용한 차량 검출

Vehicle Detection Using Optimal Features for Adaboost

  • 투고 : 2013.06.21
  • 심사 : 2013.08.23
  • 발행 : 2013.08.30
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초록

본 논문에서는 최적 특징점 선택기법를 적용한 다중 최적 Adaboost 분류기를 기반으로 새로운 차량 검출 알고리즘을 제안한다. 제안하는 알고리즘은 2 가지 주요 모듈로 구성된다. 첫 번째는 설치된 카메라의 사이트 모델링을 이용한 영상 스케일링을 기반으로 하는 이론적 DDISF(Distance Dependent Image Scaling Factor) 모듈이며, 두 번째는 차량과 카메라의 거리에 대응하는 최적 Haar-like 특징을 활용하는 것이다. 실험 결과 제안하는 알고리즘은 기존의 방법에 비하여 인식 성능이 개선됨을 확인하였다. 제안하는 알고리즘은 96.43% 의 인식률과 약 3.77%의 오검출이 발생하였다. 이러한 성능은 기존의 표준 Adabooost 알고리즘에 비하여 각각 3.69%와 1.28% 의 성능을 개선한 것이다.

A new vehicle detection algorithm based on the multiple optimal Adaboost classifiers with optimal feature selection is proposed. It consists of two major modules: 1) Theoretical DDISF(Distance Dependent Image Scaling Factor) based image scaling by site modeling of the installed cameras. and 2) optimal features selection by Haar-like feature analysis depending on the distance of the vehicles. The experimental results of the proposed algorithm shows improved recognition rate compare to the previous methods for vehicles and non-vehicles. The proposed algorithm shows about 96.43% detection rate and about 3.77% false alarm rate. These are 3.69% and 1.28% improvement compared to the standard Adaboost algorithmt.

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