The invention discloses a method for counting traffic flow of an expressway by using an unmanned aerial vehicle, which is characterized by comprising the following steps: S1, enabling the unmanned aerial vehicle to inspect the expressway and shoot a road surface live video; sS, extracting at least one frame of image of the live video; S3, performing semantic segmentation on the image in the step S2; S4, performing binarization on the image to obtain a binarized image; s5, performing transverse scanning on the binarized image, defining N transverse continuous pixel points as foreground pixel points as lane lines, deleting the foreground pixel points defined as the lane lines, and forming an outline of the vehicle by the residual foreground pixel points, with N being a lane width value; andS6, counting the number of the vehicle contours in the step S5. According to the invention, interference factors of lane lines can be provided during counting of traffic flow, so that the accuracy ofcounting results is higher.

    本发明公开了一种使用无人机对高速公路进行车流量统计的方法,其特征在于,包括以下步骤:S1、无人机对高速公路进行巡检,拍摄路面实况视频;S2、提取该实况视频至少一帧图像;S3、对步骤S2中的图像进行语义分割;S4、对上述图像进行二值化处理,获得二值化图像;S5、对二值化图像进行横向扫描,将横向连续N个像素点均为前景像素点的定义为车道线,删除定义为车道线的前景像素点,剩余的前景像素点构成汽车的轮廓,其中N为车道宽度值;S6、统计步骤S5中汽车轮廓的数量。本发明在统计车流量时能够提出车道线的干扰因素,使得统计结果的精确度更高。


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    Title :

    Method for counting traffic flow of expressway by using unmanned aerial vehicle


    Additional title:

    一种使用无人机对高速公路进行车流量统计的方法


    Contributors:

    Publication date :

    2021-02-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G06K Erkennen von Daten , RECOGNITION OF DATA / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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