在交通事故中,行人是交通环境的一部分,往往也是受害者,如何在交通运行过程中有效地保护行人成为国内外研究的焦点和热点。本文通过构建运动行人检测系统模型,当检测到车辆周围的行人时,通过行人所处的位置及运动轨迹,判断是否需要及时警告驾驶员,避免车辆与行人发生碰撞或刮擦。该系统将为我国道路行驶安全技术的研发提供必要的技术支持。 In traffic accidents, pedestrians are a part of the traffic environment and are often the victims. How to effectively protect pedestrians in the traffic operation has become the focus of research at home and abroad. In this paper, we build a model of sports pedestrian detection system. When the pedestrian around the vehicle is detected, we can judge whether it is necessary to warn the driver in time to avoid collisions or scratches with the pedestrian through the position and motion trajectory of the pedestrian. The system will provide the necessary technical support for the R & D of road safety technology in our country.