The invention provides a road intersection position and range detection framework based on a floating car track. Firstly, a quadtree model is used for dividing a detection area into units with different sizes; through track point speed and direction characteristics, units containing road intersections are screened out through DBSCAN clustering, and then the positions and the coverage areas of theroad intersections are determined through a DBSCAN algorithm+a convex hull technology, a Mean Shift algorithm+annular track point density change detection. According to the method, the intersection and the coverage area of the intersection can be effectively and accurately positioned by using the floating vehicle trajectory data, the intersection form is captured, and effective decision support isprovided for navigation service and path planning.

    本发明提出了一种基于浮动车轨迹的道路交叉口位置和范围检测框架,首先利用四叉树模型将检测区域划分成不同大小的单元,通过轨迹点速度和方向特征,使用DBSCAN聚类筛选出包含道路交叉口的单元,然后分别采用DBSCAN算法+凸包技术和Mean Shift算法+环型轨迹点密度变化检测确定道路交叉口的位置及覆盖范围。本发明能够使用浮动车轨迹数据有效精准地定位路口及其覆盖范围,捕捉路口形态,为导航服务和路径规划提供有效地决策支撑。


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    Title :

    Road intersection position and coverage area detection frame method based on floating car track


    Additional title:

    一种基于浮动车轨迹的道路交叉口位置和覆盖范围检测框架方法


    Contributors:
    MAO JIALI (author) / PU MIN (author) / ZHAO LISHENG (author) / LIU GUOPING (author) / JIN CHEQING (author) / ZHOU AOYING (author)

    Publication date :

    2020-06-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06K Erkennen von Daten , RECOGNITION OF DATA / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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