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基于单目视觉的高速公路车道保持与距离测量

DOI: 10.11834/jig.200305188

Keywords: 汽车,智能辅助操作系统,高速公路,计算机视觉,行车安全

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Abstract:

汽车智能辅助操作系统是智能交通系统的重要组成部分,也是目前国际上的热点问题.基于计算机视觉技术的车道保持,即视觉导航是辅助操作系统的核心问题之一.该文提出一种基于单目视觉的公路分道线二维重建算法和距离测量算法.其基本思想是根据分道线灰度与几何特征建立约束方程,进而跟踪提取分道线,并用二维模型重建,在此基础上,首先获得车道保持的必要道路参数,然后在二维重建的基础上,进一步实现了基于分道线几何约束的单目测距算法.在四川省与重庆市的高速公路上的实验证明,车道保持算法的实时性与精确性已基本满足实用要求;单目测距算法的精确度也能满足安全行车防止碰撞的需要.

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