환경변화에 강인한 단안카메라 레이더 적외선거리계 센서 융합 기반 교통정보 수집 시스템 개발
Development of A Multi-sensor Fusion-based Traffic Information Acquisition System with Robust to Environmental Changes using Mono Camera, Radar and Infrared Range Finder
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초록
본 논문은 환경변화에 강인한 센서 융합 교통정보 수집 시스템을 제안한다. 제안된 시스템은 각 센서의 특징을 융합하여 영상 검지기에 비해 환경에 강인하고, 주·야간 등 시간에영향을 받지 않으며 루프 검지기에 비해 유지보수에 드는 비용이 적다. 이는 레이더의 물체추적 기법과 영상검지기의 차량분류, 적외선거리계의 신뢰성 높은 객체검지 정보를 융합하고 각 센서의 문제점을 보완하여 개선을 이루었다. 구현된 시스템을 보행자의 통행이 가능한 도로에서 주·야간 5일에 걸쳐 6시간 동안 실험한 결과 88.7%의 분류정확도와 95.5%의 차량 검지율을 나타내었다. 본 시스템의 파라미터 최적화 작업을 실험환경에 따라 적응되는 방식으로 보완한다면 교통정보 수집 체계의 고도화에 기여할 수 있을 것으로 기대된다.
Abstract
The purpose of this paper is to develop a multi-sensor fusion-based traffic information acquisition system with robust to environmental changes. it combines the characteristics of each sensor and is more robust to the environmental changes than the video detector. Moreover, it is not affected by the time of day and night, and has less maintenance cost than the inductive-loop traffic detector. This is accomplished by synthesizing object tracking informations based on a radar, vehicle classification informations based on a video detector and reliable object detections of a infrared range finder. To prove the effectiveness of the proposed system, I conducted experiments for 6 hours over 5 days of the daytime and early evening on the pedestrian - accessible road. According to the experimental results, it has 88.7% classification accuracy and 95.5% vehicle detection rate. If the parameters of this system is optimized to adapt to the experimental environment changes, it is expected that it will contribute to the advancement of ITS
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