高速公路单目摄影纵向车距测量系统研究

【作者】 刘燕；

【导师】 刘浩学；

【作者基本信息】 长安大学 ， 载运工具运用工程， 2002， 硕士

【摘要】 随着我国公路高速交通系统的蓬勃发展，交通安全也成为越来越重要的社会问题，引起了社会和政府普遍关注。发展智能交通系统与智能车辆是解决我国交通安全问题的有效措施。由此，开展了各种辅助驾驶系统和自动驾驶系统的研究，其中，动态下两车间距的测量是一个关键问题。本文提出了一种基于计算机视觉的车距测量新方法。它采用单目CCD摄像机作为输入设备，用计算机对输入图像进行处理，从而得到本车道前车处的车道标线宽度，并进一步根据车距测量模型计算出两车之间的实际距离。 本文首先通过对比各种常见车距测量方法引出单目图像分析的测量技术，该系统包括车道检测和前车检测两部分；然后建立了车距测量模型；最后给出系统处理结果及分析，并从三个方面对系统进行了评价，提出了改进措施。更多还原

【Abstract】 With the development of the rapid transit on freeway in our country, traffic safety, as a more and more important problem, is attracting the universal attention of the society and the government. And the development of intelligent transportation system (ITS) and intelligent vehicle (IV) is one effective measure to solve the traffic safety problem of our country, thus various research has been done on Vehicle Intelligent Auxiliary Drive System and Automatic Drive System, of them one of key problems is how to obtain the dynamic distance between two vehicles. This paper presents a new method of distance between two vehicles based on computer vision. It adopts monocular CCD vidicon as input device, and processes the input image by computer, then gains the lane width of the location of the front vehicle on this lane, finally calculates the distance according to the model on distance between two vehicles.First of all, via comparing several familiar measure methods, this paper supplies a measure technique of monocular image analysis, which includes lane detection and obstacle detection. And then the paper sets up the model on distance between two vehicles. In the end, the result and analysis of the system processing is given, and the system is estimated in three aspects, further some improvements are advanced.更多还原