Detecting Nighttime Pedestrians for PDS Using Camera in Visible Spectrum

Abstract The death rate of pedestrians in car accidents in Korea is about 2.5 times higher than the average ofOECD countries’. If a system that can detect pedestrians and send alarm to driver is built and reduces the rate, it is worth developing such a pedestrian detection system (PDS). Since the accident rate in which pedestrians are involved is higher at nighttime than in daytime, the adoption of nighttime PDS is being standardized by big auto companies. However, they are usually using expensive night visions or multiple sensors for their PDS. In this paper we propose a method for nighttime PDS using a monochrome visible spectrum camera. We could verify its superiority in both performance and real ‐ time operation to existing algorithm through tests against video data taken in several different environments.Key Words : PDS, pedestrian detection system, WDR camera 1. 서론 보행자 감지란 traffic scene에서 자동으로 보행자를 검출하는 행위를 뜻한다. 주요 응용 분야는 자동차에 장착되어 운전자가 보행자를 인지하는 것을 도와주는 운전자 보조 시스템(DAS, driver assistant system)과 자율 운전 차량 등이며, 그의 목적은 위험 상황 발생시 운전자에게 경보를 보내거나, 만일 대응 시간이 충분치 않은 경우에

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