The invention provides an intersection multi-view large vehicle blind area early warning method, which comprises the following steps of: forming multi-view detection on large vehicles and pedestrian targets in an intersection in a manner of arranging multi-camera cameras in the intersection, adopting a trained YOLOv5 model for identification, realizing top view reconstruction and conversion of pedestrian and vehicle coordinates through multi-view homography conversion, and realizing early warning of the blind area of the large vehicles in the intersection. A main view Minkowski weighting algorithm is proposed to perform homologous locking on a target captured from multiple views, a multi-view shielding rate weighting correction algorithm is proposed to perform fusion correction on a large vehicle state space, a CTARA model is proposed to perform trajectory prediction on a large vehicle, and a self-adaptive blind area model library is proposed to be established. Self-adaptive matching of blind areas of the large vehicle is achieved through vehicle feature information, and finally a full-blind-area form and a half-blind-area form are provided based on the coincidence degree of the blind areas, so that blind area early warning of the large vehicle under multiple view angles is achieved. Compared with an existing blind area early warning method, the defect that the view field range of a monocular camera is limited is overcome, the pertinence of the vehicle blind area range is improved, and the problems that a vehicle-mounted device is not uniform in data interaction and difficult to popularize are solved.

    本发明提出了一种交叉口多视角大型车辆盲区预警方法,通过在交叉口内部布设多机位摄像头的方式,对交叉口内大型车辆与行人目标形成多视角检测,识别采用训练好的YOLOv5模型,通过多视角单应性变换实现人车坐标的俯视图重构与转换,提出主视角闵可夫斯基加权算法对多视角捕获到的目标进行同源锁定,提出多视角遮挡率加权修正算法对大型车状态空间进行融合修正,提出CTARA模型对大型车辆进行轨迹预测,提出建立自适应盲区模型库,通过车辆特征信息实现大型车辆盲区的自适应匹配,最后基于盲区重合度提出全盲区及半盲区两类形式,实现多视角下大型车辆的盲区预警。相比于现有的盲区预警方法,本发明弥补了单目摄像头视野范围受限的缺点,提高了车辆盲区范围的针对性,避免了车载装置存在数据交互不统一与推广困难的问题。


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    Titel :

    Intersection multi-view large vehicle blind area early warning method


    Weitere Titelangaben:

    一种交叉口多视角大型车辆盲区预警方法


    Beteiligte:
    LI SONGMING (Autor:in) / PENG LIJUAN (Autor:in) / LI ZHIBIN (Autor:in)

    Erscheinungsdatum :

    2022-10-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06V / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



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