The invention provides a highway vehicle speed measurement method and device, and the method comprises the steps: setting a camera, shooting a monitoring video in real time, and fixing a position covered by the monitoring video; performing image processing on the monitoring video according to frames, and calibrating a speed measurement vehicle through feature matching; obtaining the same speed measurement vehicle in the next video frame according to a target tracking algorithm, calculating the distance between the two vehicles, and if the distance is greater than a preset distance, indicating that the vehicle is overspeed; establishing a matching template of the speed measuring vehicle according to the feature matching of the previous frame; determining a possible area range of the velocity measurement vehicle according to the front and back frame images; searching a matching point corresponding to the matching template in the possible region range; obtaining a front-back position relation of front-back frames of the speed measuring vehicle; through carrying out detailed image processing on the video frame, such as RGB channel extraction, normalization, CLAHE and improved Retinex processing, the contrast and details of the image can be greatly enhanced, the vehicle features are more obvious, and thus the vehicle speed measurement precision is improved.

    本发明提出一种高速公路车辆测速方法及设备,包括:设置摄像头并实时拍摄监控视频,固定监控视频覆盖的位置;将所述监控视频按帧进行图像处理,并通过特征匹配标定测速车辆;根据目标跟踪算法得到下一视频帧中的同一测速车辆,并计算两者的距离大小,若大于预设距离,则表示超速;根据前一帧的特征匹配建立测速车辆的匹配模板;根据前后帧图像确定出测速车辆可能出现的区域范围;在可能出现的区域范围中,寻找与匹配模板对应的匹配点;得到测速车辆的前后帧的前后位置关系;通过对视频帧进行细致的图像处理,如RGB通道提取、归一化、CLAHE和改进的Retinex处理等,可以大大增强图像的对比度和细节,使得车辆特征更加明显,从而提高车辆测速的精度。


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    Titel :

    Highway vehicle speed measurement method and device


    Weitere Titelangaben:

    一种高速公路车辆测速方法及设备


    Beteiligte:
    SU SHIPENG (Autor:in) / ZHOU JUN (Autor:in) / JIANG JIANLI (Autor:in) / HUANG XI (Autor:in)

    Erscheinungsdatum :

    2024-02-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06V



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