The invention relates to a license plate character recognition method and device, electronic equipment and a storage medium. The method comprises the following steps: obtaining texture features, color features and gradient direction features of a to-be-identified region image; wherein the to-be-recognized area is a segmented area of a license plate area in the acquired image; determining the degradation grade of the license plate area based on the degradation scores corresponding to the texture features, the color features and the gradient direction features; wherein the degradation score represents the difference distance between the texture feature, the color feature and the gradient direction feature of the license plate region and the corresponding reference feature, and the degradation grade represents the damage and smudginess degree of the license plate region; and recognizing characters in the license plate area based on the to-be-recognized area image and the degradation level of the license plate area to obtain a character recognition result. By adopting the method, the accuracy of license plate character recognition can be improved, and the application scene of license plate character recognition can be expanded.

    本申请涉及一种车牌字符的识别方法、装置、电子设备及存储介质。方法包括:获取待识别区域图像的纹理特征、颜色特征和梯度方向特征;其中,待识别区域为采集图像中车牌区域的分割区域;基于纹理特征、颜色特征和梯度方向特征对应的劣化分数,确定车牌区域的劣化等级;其中,劣化分数表征车牌区域的纹理特征、颜色特征和梯度方向特征与对应的基准特征之间的差异距离,劣化等级表征车牌区域的损坏和脏污程度;基于待识别区域图像和车牌区域的劣化等级,对车牌区域中的字符进行识别,得到字符识别结果。采用本方法,能够提高对车牌字符识别的准确性,以及拓展对车牌字符识别的应用场景。


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    Title :

    License plate character recognition method and device, electronic equipment and storage medium


    Additional title:

    车牌字符的识别方法、装置、电子设备及存储介质


    Contributors:
    ZHAO SHANMIN (author) / ZHOU XIANGRU (author) / LI RUIYU (author) / LYU JIANGBO (author) / SHEN XIAOYONG (author)

    Publication date :

    2023-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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