本发明公开了一种高速公路长期并排行驶识别方法及系统,该方法包括如下步骤:(1)获取行车记录仪采集到的视频并解码为连续帧图片;(2)从每帧图片中识别出不同前车的车牌颜色和车牌图像;(3)基于识别的车牌颜色和车牌图像的面积、整张帧图片的面积以及相机内部固定参数计算行车记录仪与不同前车的距离;(4)计算行车记录仪在不同时刻与不同前车距离的差值,以识别是否有前车存在长期并排行驶的情况。本发明的识别方法和系统可以节省大量的人力,提高了识别效率,同时具有很高的覆盖率。

    The invention discloses a highway long-term side-by-side running identification method and system. The method comprises the following steps of (1) acquiring a video acquired by a driving recorder anddecoding the video into continuous frame pictures; (2) identifying vehicle license plate colors and vehicle license plate images of different front vehicles from the frame pictures; (3) based on the areas of the identified vehicle license plate colors and vehicle license plate images, the areas of the whole frame images and internal fixed parameters of a camera, calculating distances between the driving recorder and the different front vehicles; and (4) calculating difference values of the distances between the driving recorder and the different front vehicle at different moments, so as to identify whether the front vehicles are in a long-term side-by-side running state or not. According to the identification method and system, a large amount of manpower can be saved, the identification efficiency is improved, and meanwhile, the high coverage rate is achieved.


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    Title :

    高速公路长期并排行驶识别方法及系统


    Publication date :

    2021-10-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G06K Erkennen von Daten , RECOGNITION OF DATA / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS